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49385 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Leo Yan
|
50b7e7082a |
perf test coresight: Dismiss clang warning for memcpy thread
clang-18.1.3 on Ubuntu 24.04.2 reports warning:
memcpy_thread.c:30:1: warning: non-void function does not return a value in all control paths [-Wreturn-type]
30 | }
| ^
Dismiss the warning with returning NULL from the thread function.
Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20251006-perf_build_android_ndk-v3-5-4305590795b2@arm.com
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: James Clark <james.clark@linaro.org>
Cc: linux-riscv@lists.infradead.org
Cc: llvm@lists.linux.dev
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-perf-users@vger.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Leo Yan
|
e7e86d7697 |
perf build: Disable thread safety analysis for perl header
When build with perl5, it reports error:
In file included from /usr/lib/perl5/5.42.0/x86_64-linux-thread-multi/CORE/perl.h:7933:
/usr/lib/perl5/5.42.0/x86_64-linux-thread-multi/CORE/inline.h:298:5: error:
mutex 'PL_env_mutex.lock' is not held on every path through
here [-Werror,-Wthread-safety-analysis]
298 | ENV_UNLOCK;
| ^
/usr/lib/perl5/5.42.0/x86_64-linux-thread-multi/CORE/perl.h:7091:31: note:
expanded from macro 'ENV_UNLOCK'
7091 | # define ENV_UNLOCK PERL_REENTRANT_UNLOCK("env"...
| ^
/usr/lib/perl5/5.42.0/x86_64-linux-thread-multi/CORE/perl.h:6465:7: note:
expanded from macro 'PERL_REENTRANT_UNLOCK'
6465 | } STMT_END
| ^
/usr/lib/perl5/5.42.0/x86_64-linux-thread-multi/CORE/perl.h:865:28: note:
expanded from macro 'STMT_END'
865 | # define STMT_END while (0)
| ^
The error is caused by perl header but not perf code, disable thread
safety analysis if including the header.
Though GCC does not support the thread safety analysis option, this
negative warning flag is silently ignored by it.
Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20251006-perf_build_android_ndk-v3-4-4305590795b2@arm.com
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: James Clark <james.clark@linaro.org>
Cc: linux-riscv@lists.infradead.org
Cc: llvm@lists.linux.dev
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-perf-users@vger.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Leo Yan
|
ed33e5e43c |
perf build: Correct CROSS_ARCH for clang
Clang's -dumpmachine outputs "aarch64-unknown-linux-gnu", which does not match the MultiArch convention. This prevents the build system from detecting installed packages. Fix by stripping the trailing '-' from CROSS_COMPILE when setting CROSS_ARCH. Signed-off-by: Leo Yan <leo.yan@arm.com> Reviewed-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20251006-perf_build_android_ndk-v3-3-4305590795b2@arm.com Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Justin Stitt <justinstitt@google.com> Cc: Bill Wendling <morbo@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: James Clark <james.clark@linaro.org> Cc: linux-riscv@lists.infradead.org Cc: llvm@lists.linux.dev Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: linux-kernel@vger.kernel.org Cc: linux-perf-users@vger.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Leo Yan
|
c6a43bc3e8 |
perf python: split Clang options when invoking Popen
When passing a list to subprocess.Popen, each element maps to one argv
token. Current code bundles multiple Clang flags into a single element,
something like:
cmd = ['clang',
'--target=x86_64-linux-gnu -fintegrated-as -Wno-cast-function-type-mismatch',
'test-hello.c']
So Clang only sees one long, invalid option instead of separate flags,
as a result, the script cannot capture any log via PIPE.
Fix this by using shlex.split() to separate the string so each option
becomes its own argv element. The fixed list will be:
cmd = ['clang',
'--target=x86_64-linux-gnu',
'-fintegrated-as',
'-Wno-cast-function-type-mismatch',
'test-hello.c']
Fixes:
|
||
|
Leo Yan
|
53d067feb8 |
tools build: Align warning options with perf
The feature test programs are built without enabling '-Wall -Werror'
options. As a result, a feature may appear to be available, but later
building in perf can fail with stricter checks.
Make the feature test program use the same warning options as perf.
Fixes:
|
||
|
Ian Rogers
|
e3b08a0664 |
perf disasm: Remove unused evsel from 'struct annotate_args'
Set in symbol__annotate() but never used. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
257046a367 |
perf srcline: Fallback between addr2line implementations
Factor the addr2line function implementation into separate source files (addr2line.[ch]) and rename the addr2line function cmd__addr2line. In srcline replace the ifdef-ed addr2line implementations with one that first tries the llvm__addr2line implementation, then the deprecated libbfd__addr2line function and on failure uses cmd__addr2line. If HAVE_LIBLLVM_SUPPORT is enabled the llvm__addr2line will execute against the libLLVM.so it is linked against. If HAVE_LIBLLVM_DYNAMIC is enabled then libperf-llvm.so (that links against libLLVM.so) will be dlopened. If the dlopen succeeds then the behavior should match HAVE_LIBLLVM_SUPPORT. On failure cmd__addr2line is used. The dlopen is only tried once. If HAVE_LIBLLVM_DYNAMIC isn't enabled then llvm__addr2line immediately fails and cmd__addr2line is used. Clean up the dso__free_a2l logic, which is only needed in the non-LLVM version and moved to addr2line.c. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Linus Torvalds
|
256e341706 |
Generic:
* Rework almost all of KVM's exports to expose symbols only to KVM's x86
vendor modules (kvm-{amd,intel}.ko and PPC's kvm-{pr,hv}.ko.
x86:
* Rework almost all of KVM x86's exports to expose symbols only to KVM's
vendor modules, i.e. to kvm-{amd,intel}.ko.
* Add support for virtualizing Control-flow Enforcement Technology (CET) on
Intel (Shadow Stacks and Indirect Branch Tracking) and AMD (Shadow Stacks).
It's worth noting that while SHSTK and IBT can be enabled separately in CPUID,
it is not really possible to virtualize them separately. Therefore, Intel
processors will really allow both SHSTK and IBT under the hood if either is
made visible in the guest's CPUID. The alternative would be to intercept
XSAVES/XRSTORS, which is not feasible for performance reasons.
* Fix a variety of fuzzing WARNs all caused by checking L1 intercepts when
completing userspace I/O. KVM has already committed to allowing L2 to
to perform I/O at that point.
* Emulate PERF_CNTR_GLOBAL_STATUS_SET for PerfMonV2 guests, as the MSR is
supposed to exist for v2 PMUs.
* Allow Centaur CPU leaves (base 0xC000_0000) for Zhaoxin CPUs.
* Add support for the immediate forms of RDMSR and WRMSRNS, sans full
emulator support (KVM should never need to emulate the MSRs outside of
forced emulation and other contrived testing scenarios).
* Clean up the MSR APIs in preparation for CET and FRED virtualization, as
well as mediated vPMU support.
* Clean up a pile of PMU code in anticipation of adding support for mediated
vPMUs.
* Reject in-kernel IOAPIC/PIT for TDX VMs, as KVM can't obtain EOI vmexits
needed to faithfully emulate an I/O APIC for such guests.
* Many cleanups and minor fixes.
* Recover possible NX huge pages within the TDP MMU under read lock to
reduce guest jitter when restoring NX huge pages.
* Return -EAGAIN during prefault if userspace concurrently deletes/moves the
relevant memslot, to fix an issue where prefaulting could deadlock with the
memslot update.
x86 (AMD):
* Enable AVIC by default for Zen4+ if x2AVIC (and other prereqs) is supported.
* Require a minimum GHCB version of 2 when starting SEV-SNP guests via
KVM_SEV_INIT2 so that invalid GHCB versions result in immediate errors
instead of latent guest failures.
* Add support for SEV-SNP's CipherText Hiding, an opt-in feature that prevents
unauthorized CPU accesses from reading the ciphertext of SNP guest private
memory, e.g. to attempt an offline attack. This feature splits the shared
SEV-ES/SEV-SNP ASID space into separate ranges for SEV-ES and SEV-SNP guests,
therefore a new module parameter is needed to control the number of ASIDs
that can be used for VMs with CipherText Hiding vs. how many can be used to
run SEV-ES guests.
* Add support for Secure TSC for SEV-SNP guests, which prevents the untrusted
host from tampering with the guest's TSC frequency, while still allowing the
the VMM to configure the guest's TSC frequency prior to launch.
* Validate the XCR0 provided by the guest (via the GHCB) to avoid bugs
resulting from bogus XCR0 values.
* Save an SEV guest's policy if and only if LAUNCH_START fully succeeds to
avoid leaving behind stale state (thankfully not consumed in KVM).
* Explicitly reject non-positive effective lengths during SNP's LAUNCH_UPDATE
instead of subtly relying on guest_memfd to deal with them.
* Reload the pre-VMRUN TSC_AUX on #VMEXIT for SEV-ES guests, not the host's
desired TSC_AUX, to fix a bug where KVM was keeping a different vCPU's
TSC_AUX in the host MSR until return to userspace.
KVM (Intel):
* Preparation for FRED support.
* Don't retry in TDX's anti-zero-step mitigation if the target memslot is
invalid, i.e. is being deleted or moved, to fix a deadlock scenario similar
to the aforementioned prefaulting case.
* Misc bugfixes and minor cleanups.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull x86 kvm updates from Paolo Bonzini:
"Generic:
- Rework almost all of KVM's exports to expose symbols only to KVM's
x86 vendor modules (kvm-{amd,intel}.ko and PPC's kvm-{pr,hv}.ko
x86:
- Rework almost all of KVM x86's exports to expose symbols only to
KVM's vendor modules, i.e. to kvm-{amd,intel}.ko
- Add support for virtualizing Control-flow Enforcement Technology
(CET) on Intel (Shadow Stacks and Indirect Branch Tracking) and AMD
(Shadow Stacks).
It is worth noting that while SHSTK and IBT can be enabled
separately in CPUID, it is not really possible to virtualize them
separately. Therefore, Intel processors will really allow both
SHSTK and IBT under the hood if either is made visible in the
guest's CPUID. The alternative would be to intercept
XSAVES/XRSTORS, which is not feasible for performance reasons
- Fix a variety of fuzzing WARNs all caused by checking L1 intercepts
when completing userspace I/O. KVM has already committed to
allowing L2 to to perform I/O at that point
- Emulate PERF_CNTR_GLOBAL_STATUS_SET for PerfMonV2 guests, as the
MSR is supposed to exist for v2 PMUs
- Allow Centaur CPU leaves (base 0xC000_0000) for Zhaoxin CPUs
- Add support for the immediate forms of RDMSR and WRMSRNS, sans full
emulator support (KVM should never need to emulate the MSRs outside
of forced emulation and other contrived testing scenarios)
- Clean up the MSR APIs in preparation for CET and FRED
virtualization, as well as mediated vPMU support
- Clean up a pile of PMU code in anticipation of adding support for
mediated vPMUs
- Reject in-kernel IOAPIC/PIT for TDX VMs, as KVM can't obtain EOI
vmexits needed to faithfully emulate an I/O APIC for such guests
- Many cleanups and minor fixes
- Recover possible NX huge pages within the TDP MMU under read lock
to reduce guest jitter when restoring NX huge pages
- Return -EAGAIN during prefault if userspace concurrently
deletes/moves the relevant memslot, to fix an issue where
prefaulting could deadlock with the memslot update
x86 (AMD):
- Enable AVIC by default for Zen4+ if x2AVIC (and other prereqs) is
supported
- Require a minimum GHCB version of 2 when starting SEV-SNP guests
via KVM_SEV_INIT2 so that invalid GHCB versions result in immediate
errors instead of latent guest failures
- Add support for SEV-SNP's CipherText Hiding, an opt-in feature that
prevents unauthorized CPU accesses from reading the ciphertext of
SNP guest private memory, e.g. to attempt an offline attack. This
feature splits the shared SEV-ES/SEV-SNP ASID space into separate
ranges for SEV-ES and SEV-SNP guests, therefore a new module
parameter is needed to control the number of ASIDs that can be used
for VMs with CipherText Hiding vs. how many can be used to run
SEV-ES guests
- Add support for Secure TSC for SEV-SNP guests, which prevents the
untrusted host from tampering with the guest's TSC frequency, while
still allowing the the VMM to configure the guest's TSC frequency
prior to launch
- Validate the XCR0 provided by the guest (via the GHCB) to avoid
bugs resulting from bogus XCR0 values
- Save an SEV guest's policy if and only if LAUNCH_START fully
succeeds to avoid leaving behind stale state (thankfully not
consumed in KVM)
- Explicitly reject non-positive effective lengths during SNP's
LAUNCH_UPDATE instead of subtly relying on guest_memfd to deal with
them
- Reload the pre-VMRUN TSC_AUX on #VMEXIT for SEV-ES guests, not the
host's desired TSC_AUX, to fix a bug where KVM was keeping a
different vCPU's TSC_AUX in the host MSR until return to userspace
KVM (Intel):
- Preparation for FRED support
- Don't retry in TDX's anti-zero-step mitigation if the target
memslot is invalid, i.e. is being deleted or moved, to fix a
deadlock scenario similar to the aforementioned prefaulting case
- Misc bugfixes and minor cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (142 commits)
KVM: x86: Export KVM-internal symbols for sub-modules only
KVM: x86: Drop pointless exports of kvm_arch_xxx() hooks
KVM: x86: Move kvm_intr_is_single_vcpu() to lapic.c
KVM: Export KVM-internal symbols for sub-modules only
KVM: s390/vfio-ap: Use kvm_is_gpa_in_memslot() instead of open coded equivalent
KVM: VMX: Make CR4.CET a guest owned bit
KVM: selftests: Verify MSRs are (not) in save/restore list when (un)supported
KVM: selftests: Add coverage for KVM-defined registers in MSRs test
KVM: selftests: Add KVM_{G,S}ET_ONE_REG coverage to MSRs test
KVM: selftests: Extend MSRs test to validate vCPUs without supported features
KVM: selftests: Add support for MSR_IA32_{S,U}_CET to MSRs test
KVM: selftests: Add an MSR test to exercise guest/host and read/write
KVM: x86: Define AMD's #HV, #VC, and #SX exception vectors
KVM: x86: Define Control Protection Exception (#CP) vector
KVM: x86: Add human friendly formatting for #XM, and #VE
KVM: SVM: Enable shadow stack virtualization for SVM
KVM: SEV: Synchronize MSR_IA32_XSS from the GHCB when it's valid
KVM: SVM: Pass through shadow stack MSRs as appropriate
KVM: SVM: Update dump_vmcb with shadow stack save area additions
KVM: nSVM: Save/load CET Shadow Stack state to/from vmcb12/vmcb02
...
|
||
|
Ian Rogers
|
fa770f1a9d |
perf disasm: Make ins__scnprintf() and ins__is_nop() static
Reduce the scope of ins__scnprintf() and ins__is_nop() that aren't used outside of disasm.c. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
bca753204e |
perf dso: Clean up read_symbol() error handling
Ensure errno is set and return to caller for error handling. Unusually for perf the value isn't negated as expected by symbol__strerror_disassemble(). Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
aa04707f50 |
perf dso: Support BPF programs in dso__read_symbol()
Set the buffer to the code in the BPF linear info. This enables BPF JIT code disassembly by LLVM and capstone. Move the common but minimal disassmble_bpf_image call to disassemble_objdump so that it is only called after falling back to the objdump option. Similarly move the disassmble_bpf function to disassemble_objdump and rename to disassmble_bpf_libbfd to make it clearer that this support relies on libbfd. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
9518e10c2b |
perf dso: Move read_symbol() from llvm/capstone to dso
Move the read_symbol function to dso.h, make the return type const and add a mutable out_buf out parameter. In future changes this will allow a code pointer to be returned without necessary allocating memory. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
0e52f3f9f1 |
perf llvm: Reduce LLVM initialization
Move the 3 LLVM initialization routines to be called in a single init_llvm function that has its own bool to avoid repeated initialization. Reduce the scope of triplet and avoid copying strings for x86. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> [ Move init_llvm() under HAVE_LIBLLVM_SUPPORT to fix the build ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
e444c2d4a2 |
perf check: Add libLLVM feature
Advertise when perf is built with the HAVE_LIBLLVM_SUPPORT option.
Committer testing:
$ perf -vv | grep LLVM
libLLVM: [ on ] # HAVE_LIBLLVM_SUPPORT
$
And the form to use in scripts, notably the tools/perf/tests/shell/
'perf test' ones:
$ perf check feature libllvm
libLLVM: [ on ] # HAVE_LIBLLVM_SUPPORT
$ perf check -q feature libllvm && echo LLVM is present
LLVM is present
$ perf check -q feature liballvm && echo ALLVM is present
$
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.ibm.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Charlie Jenkins <charlie@rivosinc.com>
Cc: Collin Funk <collin.funk1@gmail.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Haibo Xu <haibo1.xu@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Linus Torvalds
|
ba9dac9873 |
libnvdimm for 6.18
nvdimm:
- ndtest: Return -ENOMEM if devm_kcalloc() fails in ndtest_probe()
- Clean up __nd_ioctl() and remove gotos
- Remove duplicate linux/slab.h header
- Introduce guard() for nvdimm_bus_lock
- Use str_plural() to simplify the code
ACPI:
- NFIT: Fix incorrect ndr_desc being reportedin dev_err message
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Merge tag 'libnvdimm-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Ira Weiny:
"Primarily bug fixes. Dave introduced the usage of cleanup.h a bit late
in the cycle to help with the new label work required within CXL [1]
nvdimm:
- Return -ENOMEM if devm_kcalloc() fails in ndtest_probe()
- Clean up __nd_ioctl() and remove gotos
- Remove duplicate linux/slab.h header
- Introduce guard() for nvdimm_bus_lock
- Use str_plural() to simplify the code
ACPI:
- NFIT: Fix incorrect ndr_desc being reportedin dev_err message"
Link: https://lore.kernel.org/all/20250917134116.1623730-1-s.neeraj@samsung.com/ [1]
* tag 'libnvdimm-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nvdimm: Remove duplicate linux/slab.h header
nvdimm: ndtest: Return -ENOMEM if devm_kcalloc() fails in ndtest_probe()
nvdimm: Clean up __nd_ioctl() and remove gotos
nvdimm: Introduce guard() for nvdimm_bus_lock
ACPI: NFIT: Fix incorrect ndr_desc being reportedin dev_err message
nvdimm: Use str_plural() to simplify the code
|
||
|
Sidharth Seela
|
7fc25c5a5a |
selftest: net: ovpn: Fix uninit return values
Fix functions that return undefined values. These issues were caught by
running clang using LLVM=1 option.
Clang warnings are as follows:
ovpn-cli.c:1587:6: warning: variable 'ret' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
1587 | if (!sock) {
| ^~~~~
ovpn-cli.c:1635:9: note: uninitialized use occurs here
1635 | return ret;
| ^~~
ovpn-cli.c:1587:2: note: remove the 'if' if its condition is always false
1587 | if (!sock) {
| ^~~~~~~~~~~~
1588 | fprintf(stderr, "cannot allocate netlink socket\n");
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1589 | goto err_free;
| ~~~~~~~~~~~~~~
1590 | }
| ~
ovpn-cli.c:1584:15: note: initialize the variable 'ret' to silence this warning
1584 | int mcid, ret;
| ^
| = 0
ovpn-cli.c:2107:7: warning: variable 'ret' is used uninitialized whenever switch case is taken [-Wsometimes-uninitialized]
2107 | case CMD_INVALID:
| ^~~~~~~~~~~
ovpn-cli.c:2111:9: note: uninitialized use occurs here
2111 | return ret;
| ^~~
ovpn-cli.c:1939:12: note: initialize the variable 'ret' to silence this warning
1939 | int n, ret;
| ^
|
Fixes:
|
||
|
Linus Torvalds
|
2f2c725493 |
pci-v6.18-changes
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Merge tag 'pci-v6.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Add PCI_FIND_NEXT_CAP() and PCI_FIND_NEXT_EXT_CAP() macros that
take config space accessor functions.
Implement pci_find_capability(), pci_find_ext_capability(), and
dwc, dwc endpoint, and cadence capability search interfaces with
them (Hans Zhang)
- Leave parent unit address 0 in 'interrupt-map' so that when we
build devicetree nodes to describe PCI functions that contain
multiple peripherals, we can build this property even when
interrupt controllers lack 'reg' properties (Lorenzo Pieralisi)
- Add a Xeon 6 quirk to disable Extended Tags and limit Max Read
Request Size to 128B to avoid a performance issue (Ilpo Järvinen)
- Add sysfs 'serial_number' file to expose the Device Serial Number
(Matthew Wood)
- Fix pci_acpi_preserve_config() memory leak (Nirmoy Das)
Resource management:
- Align m68k pcibios_enable_device() with other arches (Ilpo
Järvinen)
- Remove sparc pcibios_enable_device() implementations that don't do
anything beyond what pci_enable_resources() does (Ilpo Järvinen)
- Remove mips pcibios_enable_resources() and use
pci_enable_resources() instead (Ilpo Järvinen)
- Clean up bridge window sizing and assignment (Ilpo Järvinen),
including:
- Leave non-claimed bridge windows disabled
- Enable bridges even if a window wasn't assigned because not all
windows are required by downstream devices
- Preserve bridge window type when releasing the resource, since
the type is needed for reassignment
- Consolidate selection of bridge windows into two new
interfaces, pbus_select_window() and
pbus_select_window_for_type(), so this is done consistently
- Compute bridge window start and end earlier to avoid logging
stale information
MSI:
- Add quirk to disable MSI on RDC PCI to PCIe bridges (Marcos Del Sol
Vives)
Error handling:
- Align AER with EEH by allowing drivers to request a Bus Reset on
Non-Fatal Errors (in addition to the reset on Fatal Errors that we
already do) (Lukas Wunner)
- If error recovery fails, emit FAILED_RECOVERY uevents for the
devices, not for the bridge leading to them.
This makes them correspond to BEGIN_RECOVERY uevents (Lukas Wunner)
- Align AER with EEH by calling err_handler.error_detected()
callbacks to notify drivers if error recovery fails (Lukas Wunner)
- Align AER with EEH by restoring device error_state to
pci_channel_io_normal before the err_handler.slot_reset() callback.
This is earlier than before the err_handler.resume() callback
(Lukas Wunner)
- Emit a BEGIN_RECOVERY uevent when driver's
err_handler.error_detected() requests a reset, as well as when it
says recovery is complete or can be done without a reset (Niklas
Schnelle)
- Align s390 with AER and EEH by emitting uevents during error
recovery (Niklas Schnelle)
- Align EEH with AER and s390 by emitting BEGIN_RECOVERY,
SUCCESSFUL_RECOVERY, or FAILED_RECOVERY uevents depending on the
result of err_handler.error_detected() (Niklas Schnelle)
- Fix a NULL pointer dereference in aer_ratelimit() when ACPI GHES
error information identifies a device without an AER Capability
(Breno Leitao)
- Update error decoding and TLP Log printing for new errors in
current PCIe base spec (Lukas Wunner)
- Update error recovery documentation to match the current code
and use consistent nomenclature (Lukas Wunner)
ASPM:
- Enable all ClockPM and ASPM states for devicetree platforms, since
there's typically no firmware that enables ASPM
This is a risky change that may uncover hardware or configuration
defects at boot-time rather than when users enable ASPM via sysfs
later. Booting with "pcie_aspm=off" prevents this enabling
(Manivannan Sadhasivam)
- Remove the qcom code that enabled ASPM (Manivannan Sadhasivam)
Power management:
- If a device has already been disconnected, e.g., by a hotplug
removal, don't bother trying to resume it to D0 when detaching the
driver.
This avoids annoying "Unable to change power state from D3cold to
D0" messages (Mario Limonciello)
- Ensure devices are powered up before config reads for
'max_link_width', 'current_link_speed', 'current_link_width',
'secondary_bus_number', and 'subordinate_bus_number' sysfs files.
This prevents using invalid data (~0) in drivers or lspci and,
depending on how the PCIe controller reports errors, may avoid
error interrupts or crashes (Brian Norris)
Virtualization:
- Add rescan/remove locking when enabling/disabling SR-IOV, which
avoids list corruption on s390, where disabling SR-IOV also
generates hotplug events (Niklas Schnelle)
Peer-to-peer DMA:
- Free struct p2p_pgmap, not a member within it, in the
pci_p2pdma_add_resource() error path (Sungho Kim)
Endpoint framework:
- Document sysfs interface for BAR assignment of vNTB endpoint
functions (Jerome Brunet)
- Fix array underflow in endpoint BAR test case (Dan Carpenter)
- Skip endpoint IRQ test if the IRQ is out of range to avoid false
errors (Christian Bruel)
- Fix endpoint test case for controllers with fixed-size BARs smaller
than requested by the test (Marek Vasut)
- Restore inbound translation when disabling doorbell so the endpoint
doorbell test case can be run more than once (Niklas Cassel)
- Avoid a NULL pointer dereference when releasing DMA channels in
endpoint DMA test case (Shin'ichiro Kawasaki)
- Convert tegra194 interrupt number to MSI vector to fix endpoint
Kselftest MSI_TEST test case (Niklas Cassel)
- Reset tegra194 BARs when running in endpoint mode so the BAR tests
don't overwrite the ATU settings in BAR4 (Niklas Cassel)
- Handle errors in tegra194 BPMP transactions so we don't mistakenly
skip future PERST# assertion (Vidya Sagar)
AMD MDB PCIe controller driver:
- Update DT binding example to separate PERST# to a Root Port stanza
to make multiple Root Ports possible in the future (Sai Krishna
Musham)
- Add driver support for PERST# being described in a Root Port
stanza, falling back to the host bridge if not found there (Sai
Krishna Musham)
Freescale i.MX6 PCIe controller driver:
- Enable the 3.3V Vaux supply if available so devices can request
wakeup with either Beacon or WAKE# (Richard Zhu)
MediaTek PCIe Gen3 controller driver:
- Add optional sys clock ready time setting to avoid sys_clk_rdy
signal glitching in MT6991 and MT8196 (AngeloGioacchino Del Regno)
- Add DT binding and driver support for MT6991 and MT8196
(AngeloGioacchino Del Regno)
NVIDIA Tegra PCIe controller driver:
- When asserting PERST#, disable the controller instead of mistakenly
disabling the PLL twice (Nagarjuna Kristam)
- Convert struct tegra_msi mask_lock to raw spinlock to avoid a lock
nesting error (Marek Vasut)
Qualcomm PCIe controller driver:
- Select PCI Power Control Slot driver so slot voltage rails can be
turned on/off if described in Root Port devicetree node (Qiang Yu)
- Parse only PCI bridge child nodes in devicetree, skipping unrelated
nodes such as OPP (Operating Performance Points), which caused
probe failures (Krishna Chaitanya Chundru)
- Add 8.0 GT/s and 32.0 GT/s equalization settings (Ziyue Zhang)
- Consolidate Root Port 'phy' and 'reset' properties in struct
qcom_pcie_port, regardless of whether we got them from the Root
Port node or the host bridge node (Manivannan Sadhasivam)
- Fetch and map the ELBI register space in the DWC core rather than
in each driver individually (Krishna Chaitanya Chundru)
- Enable ECAM mechanism in DWC core by setting up iATU with 'CFG
Shift Feature' and use this in the qcom driver (Krishna Chaitanya
Chundru)
- Add SM8750 compatible to qcom,pcie-sm8550.yaml (Krishna Chaitanya
Chundru)
- Update qcom,pcie-x1e80100.yaml to allow fifth PCIe host on Qualcomm
Glymur, which is compatible with X1E80100 but doesn't have the
cnoc_sf_axi clock (Qiang Yu)
Renesas R-Car PCIe controller driver:
- Fix a typo that prevented correct PHY initialization (Marek Vasut)
- Add a missing 1ms delay after PWR reset assertion as required by
the V4H manual (Marek Vasut)
- Assure reset has completed before DBI access to avoid SError (Marek
Vasut)
- Fix inverted PHY initialization check, which sometimes led to
timeouts and failure to start the controller (Marek Vasut)
- Pass the correct IRQ domain to generic_handle_domain_irq() to fix a
regression when converting to msi_create_parent_irq_domain()
(Claudiu Beznea)
- Drop the spinlock protecting the PMSR register - it's no longer
required since pci_lock already serializes accesses (Marek Vasut)
- Convert struct rcar_msi mask_lock to raw spinlock to avoid a lock
nesting error (Marek Vasut)
SOPHGO PCIe controller driver:
- Check for existence of struct cdns_pcie.ops before using it to
allow Cadence drivers that don't need to supply ops (Chen Wang)
- Add DT binding and driver for the SOPHGO SG2042 PCIe controller
(Chen Wang)
STMicroelectronics STM32MP25 PCIe controller driver:
- Update pinctrl documentation of initial states and use in runtime
suspend/resume (Christian Bruel)
- Add pinctrl_pm_select_init_state() for use by stm32 driver, which
needs it during resume (Christian Bruel)
- Add devicetree bindings and drivers for the STMicroelectronics
STM32MP25 in host and endpoint modes (Christian Bruel)
Synopsys DesignWare PCIe controller driver:
- Add support for x16 in devicetree 'num-lanes' property (Konrad
Dybcio)
- Verify that if DT specifies a single IRQ for all eDMA channels, it
is named 'dma' (Niklas Cassel)
TI J721E PCIe driver:
- Add MODULE_DEVICE_TABLE() so driver can be autoloaded (Siddharth
Vadapalli)
- Power controller off before configuring the glue layer so the
controller latches the correct values on power-on (Siddharth
Vadapalli)
TI Keystone PCIe controller driver:
- Use devm_request_irq() so 'ks-pcie-error-irq' is freed when driver
exits with error (Siddharth Vadapalli)
- Add Peripheral Virtualization Unit (PVU), which restricts DMA from
PCIe devices to specific regions of host memory, to the ti,am65
binding (Jan Kiszka)
Xilinx NWL PCIe controller driver:
- Clear bootloader E_ECAM_CONTROL before merging in the new driver
value to avoid writing invalid values (Jani Nurminen)"
* tag 'pci-v6.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (141 commits)
PCI/AER: Avoid NULL pointer dereference in aer_ratelimit()
MAINTAINERS: Add entry for ST STM32MP25 PCIe drivers
PCI: stm32-ep: Add PCIe Endpoint support for STM32MP25
dt-bindings: PCI: Add STM32MP25 PCIe Endpoint bindings
PCI: stm32: Add PCIe host support for STM32MP25
PCI: xilinx-nwl: Fix ECAM programming
PCI: j721e: Fix incorrect error message in probe()
PCI: keystone: Use devm_request_irq() to free "ks-pcie-error-irq" on exit
dt-bindings: PCI: qcom,pcie-x1e80100: Set clocks minItems for the fifth Glymur PCIe Controller
PCI: dwc: Support 16-lane operation
PCI: Add lockdep assertion in pci_stop_and_remove_bus_device()
PCI/IOV: Add PCI rescan-remove locking when enabling/disabling SR-IOV
PCI: rcar-host: Convert struct rcar_msi mask_lock into raw spinlock
PCI: tegra194: Rename 'root_bus' to 'root_port_bus' in tegra_pcie_downstream_dev_to_D0()
PCI: tegra: Convert struct tegra_msi mask_lock into raw spinlock
PCI: rcar-gen4: Fix inverted break condition in PHY initialization
PCI: rcar-gen4: Assure reset occurs before DBI access
PCI: rcar-gen4: Add missing 1ms delay after PWR reset assertion
PCI: Set up bridge resources earlier
PCI: rcar-host: Drop PMSR spinlock
...
|
||
|
Eric Biggers
|
4d920ed684 |
libbpf: Fix undefined behavior in {get,put}_unaligned_be32()
These violate aliasing rules and may be miscompiled unless
-fno-strict-aliasing is used. Replace them with the standard memcpy()
solution. Note that compilers know how to optimize this properly.
Fixes:
|
||
|
Linus Torvalds
|
d9f24f8e60 |
rtla: Updates for v6.18
- This update is mostly just consolidating code between osnoise/timerlat and top/hist for easier maintenance and less future divergence. -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCaN/guhQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qqU9AQCO+u+Qmx678DCfDJo9X1UPDtS/bM5f r30X1pwYfZ3nNAEA47hbkVFcryFJZbrIPxuTGb0GSM36PHAxmch4QAwBqgs= =qzZh -----END PGP SIGNATURE----- Merge tag 'trace-tools-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing tools updates from Steven Rostedt - This is mostly just consolidating code between osnoise/timerlat and top/hist for easier maintenance and less future divergence * tag 'trace-tools-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tools/rtla: Add remaining support for osnoise actions tools/rtla: Add test engine support for unexpected output tools/rtla: Fix -A option name in test comment tools/rtla: Consolidate code between osnoise/timerlat and hist/top tools/rtla: Create common_apply_config() tools/rtla: Move top/hist params into common struct tools/rtla: Consolidate common parameters into shared structure |
||
|
Linus Torvalds
|
6093a688a0 |
Char/Misc/IIO/Binder changes for 6.18-rc1
Here is the big set of char/misc/iio and other driver subsystem changes
for 6.18-rc1. Loads of different stuff in here, it was a busy
development cycle in lots of different subsystems, with over 27k new
lines added to the tree. Included in here are:
- IIO updates including new drivers, reworking of existing apis, and
other goodness in the sensor subsystems
- MEI driver updates and additions
- NVMEM driver updates
- slimbus removal for an unused driver and some other minor
updates
- coresight driver updates and additions
- MHI driver updates
- comedi driver updates and fixes
- extcon driver updates
- interconnect driver additions
- eeprom driver updates and fixes
- minor UIO driver updates
- tiny W1 driver updates
But the majority of new code is in the rust bindings and additions,
which includes:
- misc driver rust binding updates for read/write support, we can now
write "normal" misc drivers in rust fully, and the sample driver
shows how this can be done.
- Initial framework for USB driver rust bindings, which are disabled
for now in the build, due to limited support, but coming in through
this tree due to dependencies on other rust binding changes that
were in here. I'll be enabling these back on in the build in the
usb.git tree after -rc1 is out so that developers can continue to
work on these in linux-next over the next development cycle.
- Android Binder driver implemented in Rust. This is the big one, and
was driving a huge majority of the rust binding work over the past
years. Right now there are 2 binder drivers in the kernel, selected
only at build time as to which one to use as binder wants to be
included in the system at boot time. The binder C maintainers all
agreed on this, as eventually, they want the C code to be removed from
the tree, but it will take a few releases to get there while both
are maintained to ensure that the rust implementation is fully
stable and compliant with the existing userspace apis.
All of these have been in linux-next for a while, with only minor merge
issues showing up (you will hit them as well.) Just accept both sides
of the merge, it's just some header and include file lines, nothing
major.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull Char/Misc/IIO/Binder updates from Greg KH:
"Here is the big set of char/misc/iio and other driver subsystem
changes for 6.18-rc1.
Loads of different stuff in here, it was a busy development cycle in
lots of different subsystems, with over 27k new lines added to the
tree.
Included in here are:
- IIO updates including new drivers, reworking of existing apis, and
other goodness in the sensor subsystems
- MEI driver updates and additions
- NVMEM driver updates
- slimbus removal for an unused driver and some other minor updates
- coresight driver updates and additions
- MHI driver updates
- comedi driver updates and fixes
- extcon driver updates
- interconnect driver additions
- eeprom driver updates and fixes
- minor UIO driver updates
- tiny W1 driver updates
But the majority of new code is in the rust bindings and additions,
which includes:
- misc driver rust binding updates for read/write support, we can now
write "normal" misc drivers in rust fully, and the sample driver
shows how this can be done.
- Initial framework for USB driver rust bindings, which are disabled
for now in the build, due to limited support, but coming in through
this tree due to dependencies on other rust binding changes that
were in here. I'll be enabling these back on in the build in the
usb.git tree after -rc1 is out so that developers can continue to
work on these in linux-next over the next development cycle.
- Android Binder driver implemented in Rust.
This is the big one, and was driving a huge majority of the rust
binding work over the past years. Right now there are two binder
drivers in the kernel, selected only at build time as to which one
to use as binder wants to be included in the system at boot time.
The binder C maintainers all agreed on this, as eventually, they
want the C code to be removed from the tree, but it will take a few
releases to get there while both are maintained to ensure that the
rust implementation is fully stable and compliant with the existing
userspace apis.
All of these have been in linux-next for a while"
* tag 'char-misc-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (320 commits)
rust: usb: keep usb::Device private for now
rust: usb: don't retain device context for the interface parent
USB: disable rust bindings from the build for now
samples: rust: add a USB driver sample
rust: usb: add basic USB abstractions
coresight: Add label sysfs node support
dt-bindings: arm: Add label in the coresight components
coresight: tnoc: add new AMBA ID to support Trace Noc V2
coresight: Fix incorrect handling for return value of devm_kzalloc
coresight: tpda: fix the logic to setup the element size
coresight: trbe: Return NULL pointer for allocation failures
coresight: Refactor runtime PM
coresight: Make clock sequence consistent
coresight: Refactor driver data allocation
coresight: Consolidate clock enabling
coresight: Avoid enable programming clock duplicately
coresight: Appropriately disable trace bus clocks
coresight: Appropriately disable programming clocks
coresight: etm4x: Support atclk
coresight: catu: Support atclk
...
|
||
|
Linus Torvalds
|
c6006b8ca1 |
USB/Thunderbolt changes for 6.18-rc1
Here is the big set of USB and thunderbolt drivers for 6.18-rc1. It was
another normal development cycle, with lots of the usual drivers getting
updates:
- Thunderbolt driver cleanups and additions
- dwc3 driver updates
- dwc2 driver updates
- typec driver updates
- xhci driver updates and additions
- offload USB engine updates for better power management
- unused tracepoint removals
- usb gadget fixes and updates as more users start to rely on these
drivers instead of the "old" function gadget drivers
- new USB device ids
- other minor driver USB driver updates
- new USB I/O driver framework and driver additions
The last item, the usb i/o driver, has an i2c and gpio driver added
through this tree. Those drivers were acked by the respective subsystem
maintainers, but you will get a merge conflict with the i2c tree where
new drivers were added in the same places in a Kconfig and Makefile.
The merge conflict is simple, just take both sides.
All of these have been in linux-next for a while, with the only issue
being the i2c tree merge conflicts.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
"Here is the big set of USB and thunderbolt drivers for 6.18-rc1. It
was another normal development cycle, with lots of the usual drivers
getting updates:
- Thunderbolt driver cleanups and additions
- dwc3 driver updates
- dwc2 driver updates
- typec driver updates
- xhci driver updates and additions
- offload USB engine updates for better power management
- unused tracepoint removals
- usb gadget fixes and updates as more users start to rely on these
drivers instead of the "old" function gadget drivers
- new USB device ids
- other minor driver USB driver updates
- new USB I/O driver framework and driver additions"
The last item, the usb i/o driver, has an i2c and gpio driver added
through this tree. Those drivers were acked by the respective
subsystem maintainers.
All of these have been in linux-next for a while"
* tag 'usb-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (132 commits)
usb: vhci-hcd: Prevent suspending virtually attached devices
USB: serial: option: add SIMCom 8230C compositions
thunderbolt: Fix use-after-free in tb_dp_dprx_work
usb: xhci: align PORTSC trace with one-based port numbering
usb: xhci: correct indentation for PORTSC tracing function
usb: xhci: improve TR Dequeue Pointer mask
usb: xhci-pci: add support for hosts with zero USB3 ports
usb: xhci: Update a comment about Stop Endpoint retries
Revert "usb: xhci: Avoid Stop Endpoint retry loop if the endpoint seems Running"
usb: gadget: f_rndis: Refactor bind path to use __free()
usb: gadget: f_ecm: Refactor bind path to use __free()
usb: gadget: f_acm: Refactor bind path to use __free()
usb: gadget: f_ncm: Refactor bind path to use __free()
usb: gadget: Introduce free_usb_request helper
usb: gadget: Store endpoint pointer in usb_request
usb: host: xhci-rcar: Add Renesas RZ/G3E USB3 Host driver support
usb: host: xhci-plat: Add .post_resume_quirk for struct xhci_plat_priv
usb: host: xhci-rcar: Move R-Car reg definitions
dt-bindings: usb: Document Renesas RZ/G3E USB3HOST
usb: gadget: f_fs: Fix epfile null pointer access after ep enable.
...
|
||
|
Linus Torvalds
|
54ba6d9b13 |
hid-for-linus-2025093001
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Merge tag 'hid-for-linus-2025093001' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Benjamin Tissoires:
- haptic touchpad support (Angela Czubak and Jonathan Denose)
- support for audio jack handling on DualSense Playstation controllers
(Cristian Ciocaltea)
- allow HID-BPF to rebind a driver to hid-multitouch (Benjamin
Tissoires)
- rework hidraw ioctls to make them safer (and tested) (Benjamin
Tissoires)
- various PIDFF and universal-PIDFF fixes/improvements (Tomasz Pakuła)
- better configuration of Intel QuickI2C through ACPI (Xinpeng Sun)
- other assorted cleanups and fixes
* tag 'hid-for-linus-2025093001' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (58 commits)
HID: playstation: Switch to scoped_guard() in {dualsense|dualshock4}_output_worker()
HID: playstation: Silence sparse warnings for locking context imbalances
HID: playstation: Update SP preamp gain comment line
HID: intel-thc-hid: intel-quicki2c: support ACPI config for advanced features
HID: core: Change hid_driver to use a const char* for name
HID: hidraw: tighten ioctl command parsing
selftests/hid: hidraw: forge wrong ioctls and tests them
selftests/hid: hidraw: add more coverage for hidraw ioctls
selftests/hid: update vmtest.sh for virtme-ng
HID: playstation: Support DualSense audio jack event reporting
HID: playstation: Support DualSense audio jack hotplug detection
HID: playstation: Redefine DualSense input report status field
HID: playstation: Prefer kzalloc(sizeof(*buf)...)
HID: playstation: Document spinlock_t usage
HID: playstation: Fix all alignment and line length issues
HID: playstation: Correct spelling in comment sections
HID: playstation: Replace uint{32,16,8}_t with u{32,16,8}
HID: playstation: Simplify locking with guard() and scoped_guard()
HID: playstation: Add spaces around arithmetic operators
HID: playstation: Make use of bitfield macros
...
|
||
|
Linus Torvalds
|
d104e3d17f |
CXL changes for v6.18
Misc changes:
- Use str_plural() instead of open code for emitting strings.
- Use str_enabled_disabled() instead of ternary operator
- Fix emit of type resource_size_t argument for validate_region_offset()
- Typo fixup in CXL driver-api documentation
- Rename CFMWS coherency restriction defines
- Add convention doc describe dealing with x86 low memory hole and CXL
Poison Inject support series:
- Move hpa_to_spa callback to new reoot decoder ops structure
- Define a SPA to HPA callback for interleave calculation with XOR math
- Add support for SPA to DPA address translation with XOR
- Add locked variants of poison inject and clear functions
- Add inject and clear poison support by region offset
CXL access coordinates update fix series:
- A comment update for hotplug memory callback prority defines
- Add node_update_perf_attrs() for updating perf attrs on a node
- Update cxl_access_coordinates() to use the new node update function
- Remove hmat_update_target_coordinates() and related code
CXL delayed downstream port enumeration and initialization series
- Add helper to detect top of CXL device topology and remove open coding
- Add helper to delete single dport
- Add a cached copy of target_map to cxl_decoder
- Refactor decoder setup to reduce cxl_test burden
- Defer dport allocation for switch ports
- Add mock version of devm_cxl_add_dport_by_dev() for cxl_test
- Adjust the mock version of devm_cxl_switch_port_decoders_setup() due to
cxl core usage
- Setup target_map for cxl_test decoder initialization
- Change SSLBIS handler to handle single dport
- Move port register setup to when first dport appears
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Merge tag 'cxl-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull CXL updates from Dave Jiang:
"The changes include adding poison injection support, fixing CXL access
coordinates when onlining CXL memory, and delaing the enumeration of
downstream switch ports for CXL hierarchy to ensure that the CXL link
is established at the time of enumeration to address a few issues
observed on AMD and Intel platforms.
Misc changes:
- Use str_plural() instead of open code for emitting strings.
- Use str_enabled_disabled() instead of ternary operator
- Fix emit of type resource_size_t argument for
validate_region_offset()
- Typo fixup in CXL driver-api documentation
- Rename CFMWS coherency restriction defines
- Add convention doc describe dealing with x86 low memory hole
and CXL
Poison Inject support:
- Move hpa_to_spa callback to new reoot decoder ops structure
- Define a SPA to HPA callback for interleave calculation with
XOR math
- Add support for SPA to DPA address translation with XOR
- Add locked variants of poison inject and clear functions
- Add inject and clear poison support by region offset
CXL access coordinates update fix:
- A comment update for hotplug memory callback prority defines
- Add node_update_perf_attrs() for updating perf attrs on a node
- Update cxl_access_coordinates() to use the new node update function
- Remove hmat_update_target_coordinates() and related code
CXL delayed downstream port enumeration and initialization:
- Add helper to detect top of CXL device topology and remove
open coding
- Add helper to delete single dport
- Add a cached copy of target_map to cxl_decoder
- Refactor decoder setup to reduce cxl_test burden
- Defer dport allocation for switch ports
- Add mock version of devm_cxl_add_dport_by_dev() for cxl_test
- Adjust the mock version of devm_cxl_switch_port_decoders_setup()
due to cxl core usage
- Setup target_map for cxl_test decoder initialization
- Change SSLBIS handler to handle single dport
- Move port register setup to when first dport appears"
* tag 'cxl-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (25 commits)
cxl: Move port register setup to when first dport appear
cxl: Change sslbis handler to only handle single dport
cxl/test: Setup target_map for cxl_test decoder initialization
cxl/test: Adjust the mock version of devm_cxl_switch_port_decoders_setup()
cxl/test: Add mock version of devm_cxl_add_dport_by_dev()
cxl: Defer dport allocation for switch ports
cxl/test: Refactor decoder setup to reduce cxl_test burden
cxl: Add a cached copy of target_map to cxl_decoder
cxl: Add helper to delete dport
cxl: Add helper to detect top of CXL device topology
cxl: Documentation/driver-api/cxl: Describe the x86 Low Memory Hole solution
cxl/acpi: Rename CFMW coherency restrictions
Documentation/driver-api: Fix typo error in cxl
acpi/hmat: Remove now unused hmat_update_target_coordinates()
cxl, acpi/hmat: Update CXL access coordinates directly instead of through HMAT
drivers/base/node: Add a helper function node_update_perf_attrs()
mm/memory_hotplug: Update comment for hotplug memory callback priorities
cxl: Fix emit of type resource_size_t argument for validate_region_offset()
cxl/region: Add inject and clear poison by region offset
cxl/core: Add locked variants of the poison inject and clear funcs
...
|
||
|
Linus Torvalds
|
67da125e30 |
RCU pull request for v6.18
This pull request contains the following branches, non-octopus merged:
Documentation updates:
- Update whatisRCU.rst and checklist.rst for recent RCU API additions.
- Fix RCU documentation formatting and typos.
- Replace dead Ottawa Linux Symposium links in RTFP.txt.
Miscellaneous RCU updates:
- Document that rcu_barrier() hurries RCU_LAZY callbacks.
- Remove redundant interrupt disabling from
rcu_preempt_deferred_qs_handler().
- Move list_for_each_rcu from list.h to rculist.h, and adjust the
include directive in kernel/cgroup/dmem.c accordingly.
- Make initial set of changes to accommodate upcoming system_percpu_wq
changes.
SRCU updates:
- Create an srcu_read_lock_fast_notrace() for eventual use in tracing,
including adding guards.
- Document the reliance on per-CPU operations as implicit RCU readers
in __srcu_read_{,un}lock_fast().
- Document the srcu_flip() function's memory-barrier D's relationship
to SRCU-fast readers.
- Remove a redundant preempt_disable() and preempt_enable() pair from
srcu_gp_start_if_needed().
Torture-test updates:
- Fix jitter.sh spin time so that it actually varies as advertised.
It is still quite coarse-grained, but at least it does now vary.
- Update torture.sh help text to include the not-so-new --do-normal
parameter, which permits (for example) testing KCSAN kernels without
doing non-debug kernels.
- Fix a number of false-positive diagnostics that were being triggered
by rcutorture starting before boot completed. Running multiple
near-CPU-bound rcutorture processes when there is only the boot CPU
is after all a bit excessive.
- Substitute kcalloc() for kzalloc().
- Remove a redundant kfree() and NULL out kfree()ed objects.
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Merge tag 'rcu.2025.09.26a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Paul McKenney:
"Documentation updates:
- Update whatisRCU.rst and checklist.rst for recent RCU API additions
- Fix RCU documentation formatting and typos
- Replace dead Ottawa Linux Symposium links in RTFP.txt
Miscellaneous RCU updates:
- Document that rcu_barrier() hurries RCU_LAZY callbacks
- Remove redundant interrupt disabling from
rcu_preempt_deferred_qs_handler()
- Move list_for_each_rcu from list.h to rculist.h, and adjust the
include directive in kernel/cgroup/dmem.c accordingly
- Make initial set of changes to accommodate upcoming
system_percpu_wq changes
SRCU updates:
- Create an srcu_read_lock_fast_notrace() for eventual use in
tracing, including adding guards
- Document the reliance on per-CPU operations as implicit RCU readers
in __srcu_read_{,un}lock_fast()
- Document the srcu_flip() function's memory-barrier D's relationship
to SRCU-fast readers
- Remove a redundant preempt_disable() and preempt_enable() pair from
srcu_gp_start_if_needed()
Torture-test updates:
- Fix jitter.sh spin time so that it actually varies as advertised.
It is still quite coarse-grained, but at least it does now vary
- Update torture.sh help text to include the not-so-new --do-normal
parameter, which permits (for example) testing KCSAN kernels
without doing non-debug kernels
- Fix a number of false-positive diagnostics that were being
triggered by rcutorture starting before boot completed. Running
multiple near-CPU-bound rcutorture processes when there is only the
boot CPU is after all a bit excessive
- Substitute kcalloc() for kzalloc()
- Remove a redundant kfree() and NULL out kfree()ed objects"
* tag 'rcu.2025.09.26a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (31 commits)
rcu: WQ_UNBOUND added to sync_wq workqueue
rcu: WQ_PERCPU added to alloc_workqueue users
rcu: replace use of system_wq with system_percpu_wq
refperf: Set reader_tasks to NULL after kfree()
refperf: Remove redundant kfree() after torture_stop_kthread()
srcu/tiny: Remove preempt_disable/enable() in srcu_gp_start_if_needed()
srcu: Document srcu_flip() memory-barrier D relation to SRCU-fast
srcu: Document __srcu_read_{,un}lock_fast() implicit RCU readers
rculist: move list_for_each_rcu() to where it belongs
refscale: Use kcalloc() instead of kzalloc()
rcutorture: Use kcalloc() instead of kzalloc()
docs: rcu: Replace multiple dead OLS links in RTFP.txt
doc: Fix typo in RCU's torture.rst documentation
Documentation: RCU: Retitle toctree index
Documentation: RCU: Reduce toctree depth
Documentation: RCU: Wrap kvm-remote.sh rerun snippet in literal code block
rcu: docs: Requirements.rst: Abide by conventions of kernel documentation
doc: Add RCU guards to checklist.rst
doc: Update whatisRCU.rst for recent RCU API additions
rcutorture: Delay forward-progress testing until boot completes
...
|
||
|
Rong Tao
|
de7342228b |
bpf: Finish constification of 1st parameter of bpf_d_path()
The commit |
||
|
Linus Torvalds
|
f3826aa996 |
guest_memfd:
* Add support for host userspace mapping of guest_memfd-backed memory for VM types that do NOT use support KVM_MEMORY_ATTRIBUTE_PRIVATE (which isn't precisely the same thing as CoCo VMs, since x86's SEV-MEM and SEV-ES have no way to detect private vs. shared). This lays the groundwork for removal of guest memory from the kernel direct map, as well as for limited mmap() for guest_memfd-backed memory. For more information see: * |
||
|
Linus Torvalds
|
55a42f78ff |
VFIO updates for v6.18-rc1
- Use fdinfo to expose the sysfs path of a device represented by a
vfio device file. (Alex Mastro)
- Mark vfio-fsl-mc, vfio-amba, and the reset functions for
vfio-platform for removal as these are either orphaned or believed
to be unused. (Alex Williamson)
- Add reviewers for vfio-platform to save it from also being marked
for removal. (Mostafa Saleh, Pranjal Shrivastava)
- VFIO selftests, including basic sanity testing and minimal userspace
drivers for testing against real hardware. This is also expected to
provide integration with KVM selftests for KVM-VFIO interfaces.
(David Matlack, Josh Hilke)
- Fix drivers/cdx and vfio/cdx to build without CONFIG_GENERIC_MSI_IRQ.
(Nipun Gupta)
- Fix reference leak in hisi_acc. (Miaoqian Lin)
- Use consistent return for unsupported device feature. (Alex Mastro)
- Unwind using the correct memory free callback in vfio/pds.
(Zilin Guan)
- Use IRQ_DISABLE_LAZY flag to improve handling of pre-PCI2.3 INTx
and resolve stalled interrupt on ppc64. (Timothy Pearson)
- Enable GB300 in nvgrace-gpu vfio-pci variant driver. (Tushar Dave)
- Misc:
- Drop unnecessary ternary conversion in vfio/pci. (Xichao Zhao)
- Grammatical fix in nvgrace-gpu. (Morduan Zang)
- Update Shameer's email address. (Shameer Kolothum)
- Fix document build warning. (Alex Williamson)
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Merge tag 'vfio-v6.18-rc1' of https://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- Use fdinfo to expose the sysfs path of a device represented by a vfio
device file (Alex Mastro)
- Mark vfio-fsl-mc, vfio-amba, and the reset functions for
vfio-platform for removal as these are either orphaned or believed to
be unused (Alex Williamson)
- Add reviewers for vfio-platform to save it from also being marked for
removal (Mostafa Saleh, Pranjal Shrivastava)
- VFIO selftests, including basic sanity testing and minimal userspace
drivers for testing against real hardware. This is also expected to
provide integration with KVM selftests for KVM-VFIO interfaces (David
Matlack, Josh Hilke)
- Fix drivers/cdx and vfio/cdx to build without CONFIG_GENERIC_MSI_IRQ
(Nipun Gupta)
- Fix reference leak in hisi_acc (Miaoqian Lin)
- Use consistent return for unsupported device feature (Alex Mastro)
- Unwind using the correct memory free callback in vfio/pds (Zilin
Guan)
- Use IRQ_DISABLE_LAZY flag to improve handling of pre-PCI2.3 INTx and
resolve stalled interrupt on ppc64 (Timothy Pearson)
- Enable GB300 in nvgrace-gpu vfio-pci variant driver (Tushar Dave)
- Misc:
- Drop unnecessary ternary conversion in vfio/pci (Xichao Zhao)
- Grammatical fix in nvgrace-gpu (Morduan Zang)
- Update Shameer's email address (Shameer Kolothum)
- Fix document build warning (Alex Williamson)
* tag 'vfio-v6.18-rc1' of https://github.com/awilliam/linux-vfio: (48 commits)
vfio/nvgrace-gpu: Add GB300 SKU to the devid table
vfio/pci: Fix INTx handling on legacy non-PCI 2.3 devices
vfio/pds: replace bitmap_free with vfree
vfio: return -ENOTTY for unsupported device feature
hisi_acc_vfio_pci: Fix reference leak in hisi_acc_vfio_debug_init
vfio/platform: Mark reset drivers for removal
vfio/amba: Mark for removal
MAINTAINERS: Add myself as VFIO-platform reviewer
MAINTAINERS: Add myself as VFIO-platform reviewer
docs: proc.rst: Fix VFIO Device title formatting
vfio: selftests: Fix .gitignore for already tracked files
vfio/cdx: update driver to build without CONFIG_GENERIC_MSI_IRQ
cdx: don't select CONFIG_GENERIC_MSI_IRQ
MAINTAINERS: Update Shameer Kolothum's email address
vfio: selftests: Add a script to help with running VFIO selftests
vfio: selftests: Make iommufd the default iommu_mode
vfio: selftests: Add iommufd mode
vfio: selftests: Add iommufd_compat_type1{,v2} modes
vfio: selftests: Add vfio_type1v2_mode
vfio: selftests: Replicate tests across all iommu_modes
...
|
||
|
Linus Torvalds
|
cbf33b8e0b |
bpf-fixes
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||
|
Linus Torvalds
|
e56ebe27a0 |
iommufd 6.18 merge window pull
Two minor fixes - Make the selftest work again on x86 platforms with iommus enabled - Fix a compiler warning in the userspace kselftest -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRRRCHOFoQz/8F5bUaFwuHvBreFYQUCaN6InwAKCRCFwuHvBreF YXsrAQCu42l0LtnavsGRgF4v5BhE9dx+WqSI41bIq3jqUPOHPgEAn4xpNyNbuDA0 3R31E9C3exWSzsyp1XABfSz13bNklQU= =7ZTd -----END PGP SIGNATURE----- Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd Pull iommufd updates from Jason Gunthorpe: "Two minor fixes: - Make the selftest work again on x86 platforms with iommus enabled - Fix a compiler warning in the userspace kselftest" * tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: iommufd: Register iommufd mock devices with fwspec iommu/selftest: prevent use of uninitialized variable |
||
|
Linus Torvalds
|
a498d59c46 |
dma-mapping updates for Linux 6.18:
- refactoring of DMA mapping API to physical addresses as the primary interface instead of page+offset parameters; this gets much closer to Matthew Wilcox's long term wish for struct-pageless IO to cacheable DRAM and is supporting memdesc project which seeks to substantially transform how struct page works; an advantage of this approach is the possibility of introducing DMA_ATTR_MMIO, which covers existing 'dma_map_resource' flow in the common paths, what in turn lets to use recently introduced dma_iova_link() API to map PCI P2P MMIO without creating struct page; developped by Leon Romanovsky and Jason Gunthorpe - minor clean-up by Petr Tesarik and Qianfeng Rong -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQSrngzkoBtlA8uaaJ+Jp1EFxbsSRAUCaNugqAAKCRCJp1EFxbsS RBvDAQCEd4P6pz6ROQHf5BfiF5J1db2H6bWsFLjajx3KfNWf8gD+P0eQ0hTzLrcd zuSKZTivviOiyjXlt/9GOaXXPnmTwA0= =b0nZ -----END PGP SIGNATURE----- Merge tag 'dma-mapping-6.18-2025-09-30' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux Pull dma-mapping updates from Marek Szyprowski: - Refactoring of DMA mapping API to physical addresses as the primary interface instead of page+offset parameters This gets much closer to Matthew Wilcox's long term wish for struct-pageless IO to cacheable DRAM and is supporting memdesc project which seeks to substantially transform how struct page works. An advantage of this approach is the possibility of introducing DMA_ATTR_MMIO, which covers existing 'dma_map_resource' flow in the common paths, what in turn lets to use recently introduced dma_iova_link() API to map PCI P2P MMIO without creating struct page Developped by Leon Romanovsky and Jason Gunthorpe - Minor clean-up by Petr Tesarik and Qianfeng Rong * tag 'dma-mapping-6.18-2025-09-30' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux: kmsan: fix missed kmsan_handle_dma() signature conversion mm/hmm: properly take MMIO path mm/hmm: migrate to physical address-based DMA mapping API dma-mapping: export new dma_*map_phys() interface xen: swiotlb: Open code map_resource callback dma-mapping: implement DMA_ATTR_MMIO for dma_(un)map_page_attrs() kmsan: convert kmsan_handle_dma to use physical addresses dma-mapping: convert dma_direct_*map_page to be phys_addr_t based iommu/dma: implement DMA_ATTR_MMIO for iommu_dma_(un)map_phys() iommu/dma: rename iommu_dma_*map_page to iommu_dma_*map_phys dma-mapping: rename trace_dma_*map_page to trace_dma_*map_phys dma-debug: refactor to use physical addresses for page mapping iommu/dma: implement DMA_ATTR_MMIO for dma_iova_link(). dma-mapping: introduce new DMA attribute to indicate MMIO memory swiotlb: Remove redundant __GFP_NOWARN dma-direct: clean up the logic in __dma_direct_alloc_pages() |
||
|
Linus Torvalds
|
ee2fe81cdc |
It has been a relatively busy cycle in docsland, with changes all over:
- Bring the kernel memory-model docs into the Sphinx build in the "literal
include" mode.
- Lots of build-infrastructure work, further cleaning up long-term
kernel-doc technical debt. The sphinx-pre-install tool has been
converted to Python and updated for current systems.
- A new tool to detect when documents have been moved and generate HTML
redirects; this can be used on kernel.org (or any other site hosting the
rendered docs) to avoid breaking links.
- Automated processing of the YAML files describing the netlink protocol.
- A significant update of the maintainer's PGP guide.
...and a seemingly endless series of typo fixes, build-problem fixes, etc.
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Merge tag 'docs-6.18' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"It has been a relatively busy cycle in docsland, with changes all
over:
- Bring the kernel memory-model docs into the Sphinx build in the
"literal include" mode.
- Lots of build-infrastructure work, further cleaning up long-term
kernel-doc technical debt. The sphinx-pre-install tool has been
converted to Python and updated for current systems.
- A new tool to detect when documents have been moved and generate
HTML redirects; this can be used on kernel.org (or any other site
hosting the rendered docs) to avoid breaking links.
- Automated processing of the YAML files describing the netlink
protocol.
- A significant update of the maintainer's PGP guide.
... and a seemingly endless series of typo fixes, build-problem fixes,
etc"
* tag 'docs-6.18' of git://git.lwn.net/linux: (193 commits)
Documentation/features: Update feature lists for 6.17-rc7
docs: remove cdomain.py
Documentation/process: submitting-patches: fix typo in "were do"
docs: dev-tools/lkmm: Fix typo of missing file extension
Documentation: trace: histogram: Convert ftrace docs cross-reference
Documentation: trace: histogram-design: Wrap introductory note in note:: directive
Documentation: trace: historgram-design: Separate sched_waking histogram section heading and the following diagram
Documentation: trace: histogram-design: Trim trailing vertices in diagram explanation text
Documentation: trace: histogram: Fix histogram trigger subsection number order
docs: driver-api: fix spelling of "buses".
Documentation: fbcon: Use admonition directives
Documentation: fbcon: Reindent 8th step of attach/detach/unload
Documentation: fbcon: Add boot options and attach/detach/unload section headings
docs: filesystems: sysfs: add remaining top level sysfs directory descriptions
docs: filesystems: sysfs: clarify symlink destinations in dev and bus/devices descriptions
docs: filesystems: sysfs: remove top level sysfs net directory
docs: maintainer: Fix ambiguous subheading formatting
docs: kdoc: a few more dump_typedef() tweaks
docs: kdoc: remove redundant comment stripping in dump_typedef()
docs: kdoc: remove some dead code in dump_typedef()
...
|
||
|
Linus Torvalds
|
50647a1176 |
file->f_path constification
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-f_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull file->f_path constification from Al Viro:
"Only one thing was modifying ->f_path of an opened file - acct(2).
Massaging that away and constifying a bunch of struct path * arguments
in functions that might be given &file->f_path ends up with the
situation where we can turn ->f_path into an anon union of const
struct path f_path and struct path __f_path, the latter modified only
in a few places in fs/{file_table,open,namei}.c, all for struct file
instances that are yet to be opened"
* tag 'pull-f_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (23 commits)
Have cc(1) catch attempts to modify ->f_path
kernel/acct.c: saner struct file treatment
configfs:get_target() - release path as soon as we grab configfs_item reference
apparmor/af_unix: constify struct path * arguments
ovl_is_real_file: constify realpath argument
ovl_sync_file(): constify path argument
ovl_lower_dir(): constify path argument
ovl_get_verity_digest(): constify path argument
ovl_validate_verity(): constify {meta,data}path arguments
ovl_ensure_verity_loaded(): constify datapath argument
ksmbd_vfs_set_init_posix_acl(): constify path argument
ksmbd_vfs_inherit_posix_acl(): constify path argument
ksmbd_vfs_kern_path_unlock(): constify path argument
ksmbd_vfs_path_lookup_locked(): root_share_path can be const struct path *
check_export(): constify path argument
export_operations->open(): constify path argument
rqst_exp_get_by_name(): constify path argument
nfs: constify path argument of __vfs_getattr()
bpf...d_path(): constify path argument
done_path_create(): constify path argument
...
|
||
|
Ian Rogers
|
a22d167ed8 |
perf parse-events: Fix parsing of >30kb event strings
Metrics may generate many particularly uncore event references. The
resulting event string may then be >32kb. The parse events lex is
using "%option reject" which stores backtracking state in a buffer
sized at roughtly 30kb. If the event string is larger than this then a
buffer overflow and typically a crash happens.
The need for "%option reject" was for BPF events which were removed in
commit
|
||
|
Thomas Falcon
|
56be0fe5f6 |
perf record: Add auto counter reload parse and regression tests
Include event parsing and regression tests for auto counter reload and ratio-to-prev event term. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Thomas Falcon <thomas.falcon@intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Thomas Falcon
|
6b9c0261b3 |
perf record: Add ratio-to-prev term
Provide ratio-to-prev term which allows the user to set the event sample period of two events corresponding to a desired ratio. If using on an Intel x86 platform with Auto Counter Reload support, also set corresponding event's config2 attribute with a bitmask which counters to reset and which counters to sample if the desired ratio is met or exceeded. On other platforms, only the sample period is affected by the ratio-to-prev term. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Thomas Falcon <thomas.falcon@intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
584754cbee |
tools build: Remove libbpf-strings feature test
The feature test is unnecessary as the LIBBPF_CURRENT_VERSION_GEQ(1,7) macro can be used instead. The only use was in perf and this is now removed. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Blake Jones <blakejones@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
2bd597170f |
perf bpf-event: Use libbpf version rather than feature check
The feature check guarded the -DHAVE_LIBBPF_STRINGS_SUPPORT is unnecessary as it is sufficient and easier to use the LIBBPF_CURRENT_VERSION_GEQ macro. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Blake Jones <blakejones@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Ian Rogers
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a90777bb03 |
perf build: Move libopcode disasm tests to BUILD_NONDISTRO
The disasm feature tests feature-disassembler-four-args and feature-disassembler-init-styled link against libopcodes part of binutils which is license incompatible (GPLv3) with perf. Moving these tests out of the common config will help improve build time. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Ian Rogers
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c5b76ab525 |
tools build: Remove feature-libslang-include-subdir
Added in commit
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Zecheng Li
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a5099d8143 |
perf annotate: Rename TSR_KIND_POINTER to TSR_KIND_PERCPU_POINTER
TSR_KIND_POINTER only represents percpu pointers currently. Rename it to TSR_KIND_PERCPU_POINTER so we can use the TSR_KIND_POINTER to represent pointer to a type. Reviewed-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Zecheng Li <zecheng@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Xu Liu <xliuprof@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Ian Rogers
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2cc7aa995c |
perf stat: Refactor retry/skip/fatal error handling
For the sake of Intel topdown events commit |
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Ian Rogers
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6026ab657a |
perf stat: Move create_perf_stat_counter() to builtin-stat.c
The function create_perf_stat_counter is only used in builtin-stat.c and contains logic about retrying events specific to builtin-stat.c. Move the code to builtin-stat.c to tidy this up. Reviewed-by: James Clark <james.clark@linaro.org> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Howard Chu <howardchu95@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Ian Rogers
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79cc9b4b2c |
tools build: Remove get_current_dir_name feature check
As perf no longer tests for this feature, and it was the only user, remove the feature test. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> [ Remove the call to main_test_get_current_dir_name() from main() in test-all.c, otherwise it will always fail ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Linus Torvalds
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6238729bfc |
fuse update for 6.18
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCaNuYpQAKCRDh3BK/laaZ PBF6APoDWzheST2Gw3LPkU03xF6Yn+ZMP0p3L676yYBb07LrWQD8CBsfOkMei6W/ L+/GaVAbpIsuCQ6GTPE/6HTLWevU2Q0= =kR5v -----END PGP SIGNATURE----- Merge tag 'fuse-update-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse Pull fuse updates from Miklos Szeredi: - Extend copy_file_range interface to be fully 64bit capable (Miklos) - Add selftest for fusectl (Chen Linxuan) - Move fuse docs into a separate directory (Bagas Sanjaya) - Allow fuse to enter freezable state in some cases (Sergey Senozhatsky) - Clean up writeback accounting after removing tmp page copies (Joanne) - Optimize virtiofs request handling (Li RongQing) - Add synchronous FUSE_INIT support (Miklos) - Allow server to request prune of unused inodes (Miklos) - Fix deadlock with AIO/sync release (Darrick) - Add some prep patches for block/iomap support (Darrick) - Misc fixes and cleanups * tag 'fuse-update-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (26 commits) fuse: move CREATE_TRACE_POINTS to a separate file fuse: move the backing file idr and code into a new source file fuse: enable FUSE_SYNCFS for all fuseblk servers fuse: capture the unique id of fuse commands being sent fuse: fix livelock in synchronous file put from fuseblk workers mm: fix lockdep issues in writeback handling fuse: add prune notification fuse: remove redundant calls to fuse_copy_finish() in fuse_notify() fuse: fix possibly missing fuse_copy_finish() call in fuse_notify() fuse: remove FUSE_NOTIFY_CODE_MAX from <uapi/linux/fuse.h> fuse: remove fuse_readpages_end() null mapping check fuse: fix references to fuse.rst -> fuse/fuse.rst fuse: allow synchronous FUSE_INIT fuse: zero initialize inode private data fuse: remove unused 'inode' parameter in fuse_passthrough_open virtio_fs: fix the hash table using in virtio_fs_enqueue_req() mm: remove BDI_CAP_WRITEBACK_ACCT fuse: use default writeback accounting virtio_fs: Remove redundant spinlock in virtio_fs_request_complete() fuse: remove unneeded offset assignment when filling write pages ... |
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Emil Dahl Juhl
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dea00c204e |
tools: lib: thermal: expose thermal_exit symbols
Remove duplicate entry for thermal_init and add the missing entries for thermal_exit and their respectives in cmd, events, and sampling context. Signed-off-by: Emil Dahl Juhl <juhl.emildahl@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Emil Dahl Juhl
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1375152bb0 |
tools: lib: thermal: don't preserve owner in install
Instead of preserving mode, timestamp, and owner, for the object files during installation, just preserve the mode and timestamp. When installing as root, the installed files should be owned by root. When installing as user, --preserve=ownership doesn't work anyway. This makes --preserve=ownership rather pointless. Signed-off-by: Emil Dahl Juhl <juhl.emildahl@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Sascha Hauer
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b31f7f725c |
tools: lib: thermal: use pkg-config to locate libnl3
To make libthermal more cross compile friendly use pkg-config to locate libnl3. Only if that fails fall back to hardcoded /usr/include/libnl3. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Ian Rogers
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062d02a96d |
perf namespaces: Avoid get_current_dir_name dependency
get_current_dir_name is a GNU extension not supported on, for example, Android. There is only one use of it so let's just switch to getcwd to avoid build and other complexity. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Linus Torvalds
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e406d57be7 |
Patch series in this pull request:
- The 3 patch series "ida: Remove the ida_simple_xxx() API" from Christophe Jaillet completes the removal of this legacy IDR API. - The 9 patch series "panic: introduce panic status function family" from Jinchao Wang provides a number of cleanups to the panic code and its various helpers, which were rather ad-hoc and scattered all over the place. - The 5 patch series "tools/delaytop: implement real-time keyboard interaction support" from Fan Yu adds a few nice user-facing usability changes to the delaytop monitoring tool. - The 3 patch series "efi: Fix EFI boot with kexec handover (KHO)" from Evangelos Petrongonas fixes a panic which was happening with the combination of EFI and KHO. - The 2 patch series "Squashfs: performance improvement and a sanity check" from Phillip Lougher teaches squashfs's lseek() about SEEK_DATA/SEEK_HOLE. A mere 150x speedup was measured for a well-chosen microbenchmark. - Plus another 50-odd singleton patches all over the place. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaN78zwAKCRDdBJ7gKXxA jhLeAQCddTv0XtSUTrvBvmrJVUBrQQeJc+LtNopMIjfAF/WAWAEAogSVKxg+HHEB GaVixx4zDriNzEqrqiCx9rm4l+YooQA= =XRe0 -----END PGP SIGNATURE----- Merge tag 'mm-nonmm-stable-2025-10-02-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: - "ida: Remove the ida_simple_xxx() API" from Christophe Jaillet completes the removal of this legacy IDR API - "panic: introduce panic status function family" from Jinchao Wang provides a number of cleanups to the panic code and its various helpers, which were rather ad-hoc and scattered all over the place - "tools/delaytop: implement real-time keyboard interaction support" from Fan Yu adds a few nice user-facing usability changes to the delaytop monitoring tool - "efi: Fix EFI boot with kexec handover (KHO)" from Evangelos Petrongonas fixes a panic which was happening with the combination of EFI and KHO - "Squashfs: performance improvement and a sanity check" from Phillip Lougher teaches squashfs's lseek() about SEEK_DATA/SEEK_HOLE. A mere 150x speedup was measured for a well-chosen microbenchmark - plus another 50-odd singleton patches all over the place * tag 'mm-nonmm-stable-2025-10-02-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (75 commits) Squashfs: reject negative file sizes in squashfs_read_inode() kallsyms: use kmalloc_array() instead of kmalloc() MAINTAINERS: update Sibi Sankar's email address Squashfs: add SEEK_DATA/SEEK_HOLE support Squashfs: add additional inode sanity checking lib/genalloc: fix device leak in of_gen_pool_get() panic: remove CONFIG_PANIC_ON_OOPS_VALUE ocfs2: fix double free in user_cluster_connect() checkpatch: suppress strscpy warnings for userspace tools cramfs: fix incorrect physical page address calculation kernel: prevent prctl(PR_SET_PDEATHSIG) from racing with parent process exit Squashfs: fix uninit-value in squashfs_get_parent kho: only fill kimage if KHO is finalized ocfs2: avoid extra calls to strlen() after ocfs2_sprintf_system_inode_name() kernel/sys.c: fix the racy usage of task_lock(tsk->group_leader) in sys_prlimit64() paths sched/task.h: fix the wrong comment on task_lock() nesting with tasklist_lock coccinelle: platform_no_drv_owner: handle also built-in drivers coccinelle: of_table: handle SPI device ID tables lib/decompress: use designated initializers for struct compress_format efi: support booting with kexec handover (KHO) ... |
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Linus Torvalds
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8804d970fa |
Summary of significant series in this pull request:
- The 3 patch series "mm, swap: improve cluster scan strategy" from Kairui Song improves performance and reduces the failure rate of swap cluster allocation. - The 4 patch series "support large align and nid in Rust allocators" from Vitaly Wool permits Rust allocators to set NUMA node and large alignment when perforning slub and vmalloc reallocs. - The 2 patch series "mm/damon/vaddr: support stat-purpose DAMOS" from Yueyang Pan extend DAMOS_STAT's handling of the DAMON operations sets for virtual address spaces for ops-level DAMOS filters. - The 3 patch series "execute PROCMAP_QUERY ioctl under per-vma lock" from Suren Baghdasaryan reduces mmap_lock contention during reads of /proc/pid/maps. - The 2 patch series "mm/mincore: minor clean up for swap cache checking" from Kairui Song performs some cleanup in the swap code. - The 11 patch series "mm: vm_normal_page*() improvements" from David Hildenbrand provides code cleanup in the pagemap code. - The 5 patch series "add persistent huge zero folio support" from Pankaj Raghav provides a block layer speedup by optionalls making the huge_zero_pagepersistent, instead of releasing it when its refcount falls to zero. - The 3 patch series "kho: fixes and cleanups" from Mike Rapoport adds a few touchups to the recently added Kexec Handover feature. - The 10 patch series "mm: make mm->flags a bitmap and 64-bit on all arches" from Lorenzo Stoakes turns mm_struct.flags into a bitmap. To end the constant struggle with space shortage on 32-bit conflicting with 64-bit's needs. - The 2 patch series "mm/swapfile.c and swap.h cleanup" from Chris Li cleans up some swap code. - The 7 patch series "selftests/mm: Fix false positives and skip unsupported tests" from Donet Tom fixes a few things in our selftests code. - The 7 patch series "prctl: extend PR_SET_THP_DISABLE to only provide THPs when advised" from David Hildenbrand "allows individual processes to opt-out of THP=always into THP=madvise, without affecting other workloads on the system". It's a long story - the [1/N] changelog spells out the considerations. - The 11 patch series "Add and use memdesc_flags_t" from Matthew Wilcox gets us started on the memdesc project. Please see https://kernelnewbies.org/MatthewWilcox/Memdescs and https://blogs.oracle.com/linux/post/introducing-memdesc. - The 3 patch series "Tiny optimization for large read operations" from Chi Zhiling improves the efficiency of the pagecache read path. - The 5 patch series "Better split_huge_page_test result check" from Zi Yan improves our folio splitting selftest code. - The 2 patch series "test that rmap behaves as expected" from Wei Yang adds some rmap selftests. - The 3 patch series "remove write_cache_pages()" from Christoph Hellwig removes that function and converts its two remaining callers. - The 2 patch series "selftests/mm: uffd-stress fixes" from Dev Jain fixes some UFFD selftests issues. - The 3 patch series "introduce kernel file mapped folios" from Boris Burkov introduces the concept of "kernel file pages". Using these permits btrfs to account its metadata pages to the root cgroup, rather than to the cgroups of random inappropriate tasks. - The 2 patch series "mm/pageblock: improve readability of some pageblock handling" from Wei Yang provides some readability improvements to the page allocator code. - The 11 patch series "mm/damon: support ARM32 with LPAE" from SeongJae Park teaches DAMON to understand arm32 highmem. - The 4 patch series "tools: testing: Use existing atomic.h for vma/maple tests" from Brendan Jackman performs some code cleanups and deduplication under tools/testing/. - The 2 patch series "maple_tree: Fix testing for 32bit compiles" from Liam Howlett fixes a couple of 32-bit issues in tools/testing/radix-tree.c. - The 2 patch series "kasan: unify kasan_enabled() and remove arch-specific implementations" from Sabyrzhan Tasbolatov moves KASAN arch-specific initialization code into a common arch-neutral implementation. - The 3 patch series "mm: remove zpool" from Johannes Weiner removes zspool - an indirection layer which now only redirects to a single thing (zsmalloc). - The 2 patch series "mm: task_stack: Stack handling cleanups" from Pasha Tatashin makes a couple of cleanups in the fork code. - The 37 patch series "mm: remove nth_page()" from David Hildenbrand makes rather a lot of adjustments at various nth_page() callsites, eventually permitting the removal of that undesirable helper function. - The 2 patch series "introduce kasan.write_only option in hw-tags" from Yeoreum Yun creates a KASAN read-only mode for ARM, using that architecture's memory tagging feature. It is felt that a read-only mode KASAN is suitable for use in production systems rather than debug-only. - The 3 patch series "mm: hugetlb: cleanup hugetlb folio allocation" from Kefeng Wang does some tidying in the hugetlb folio allocation code. - The 12 patch series "mm: establish const-correctness for pointer parameters" from Max Kellermann makes quite a number of the MM API functions more accurate about the constness of their arguments. This was getting in the way of subsystems (in this case CEPH) when they attempt to improving their own const/non-const accuracy. - The 7 patch series "Cleanup free_pages() misuse" from Vishal Moola fixes a number of code sites which were confused over when to use free_pages() vs __free_pages(). - The 3 patch series "Add Rust abstraction for Maple Trees" from Alice Ryhl makes the mapletree code accessible to Rust. Required by nouveau and by its forthcoming successor: the new Rust Nova driver. - The 2 patch series "selftests/mm: split_huge_page_test: split_pte_mapped_thp improvements" from David Hildenbrand adds a fix and some cleanups to the thp selftesting code. - The 14 patch series "mm, swap: introduce swap table as swap cache (phase I)" from Chris Li and Kairui Song is the first step along the path to implementing "swap tables" - a new approach to swap allocation and state tracking which is expected to yield speed and space improvements. This patchset itself yields a 5-20% performance benefit in some situations. - The 3 patch series "Some ptdesc cleanups" from Matthew Wilcox utilizes the new memdesc layer to clean up the ptdesc code a little. - The 3 patch series "Fix va_high_addr_switch.sh test failure" from Chunyu Hu fixes some issues in our 5-level pagetable selftesting code. - The 2 patch series "Minor fixes for memory allocation profiling" from Suren Baghdasaryan addresses a couple of minor issues in relatively new memory allocation profiling feature. - The 3 patch series "Small cleanups" from Matthew Wilcox has a few cleanups in preparation for more memdesc work. - The 2 patch series "mm/damon: add addr_unit for DAMON_LRU_SORT and DAMON_RECLAIM" from Quanmin Yan makes some changes to DAMON in furtherance of supporting arm highmem. - The 2 patch series "selftests/mm: Add -Wunreachable-code and fix warnings" from Muhammad Anjum adds that compiler check to selftests code and fixes the fallout, by removing dead code. - The 10 patch series "Improvements to Victim Process Thawing and OOM Reaper Traversal Order" from zhongjinji makes a number of improvements in the OOM killer: mainly thawing a more appropriate group of victim threads so they can release resources. - The 5 patch series "mm/damon: misc fixups and improvements for 6.18" from SeongJae Park is a bunch of small and unrelated fixups for DAMON. - The 7 patch series "mm/damon: define and use DAMON initialization check function" from SeongJae Park implement reliability and maintainability improvements to a recently-added bug fix. - The 2 patch series "mm/damon/stat: expose auto-tuned intervals and non-idle ages" from SeongJae Park provides additional transparency to userspace clients of the DAMON_STAT information. - The 2 patch series "Expand scope of khugepaged anonymous collapse" from Dev Jain removes some constraints on khubepaged's collapsing of anon VMAs. It also increases the success rate of MADV_COLLAPSE against an anon vma. - The 2 patch series "mm: do not assume file == vma->vm_file in compat_vma_mmap_prepare()" from Lorenzo Stoakes moves us further towards removal of file_operations.mmap(). This patchset concentrates upon clearing up the treatment of stacked filesystems. - The 6 patch series "mm: Improve mlock tracking for large folios" from Kiryl Shutsemau provides some fixes and improvements to mlock's tracking of large folios. /proc/meminfo's "Mlocked" field became more accurate. - The 2 patch series "mm/ksm: Fix incorrect accounting of KSM counters during fork" from Donet Tom fixes several user-visible KSM stats inaccuracies across forks and adds selftest code to verify these counters. - The 2 patch series "mm_slot: fix the usage of mm_slot_entry" from Wei Yang addresses some potential but presently benign issues in KSM's mm_slot handling. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaN3cywAKCRDdBJ7gKXxA jtaPAQDmIuIu7+XnVUK5V11hsQ/5QtsUeLHV3OsAn4yW5/3dEQD/UddRU08ePN+1 2VRB0EwkLAdfMWW7TfiNZ+yhuoiL/AA= =4mhY -----END PGP SIGNATURE----- Merge tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - "mm, swap: improve cluster scan strategy" from Kairui Song improves performance and reduces the failure rate of swap cluster allocation - "support large align and nid in Rust allocators" from Vitaly Wool permits Rust allocators to set NUMA node and large alignment when perforning slub and vmalloc reallocs - "mm/damon/vaddr: support stat-purpose DAMOS" from Yueyang Pan extend DAMOS_STAT's handling of the DAMON operations sets for virtual address spaces for ops-level DAMOS filters - "execute PROCMAP_QUERY ioctl under per-vma lock" from Suren Baghdasaryan reduces mmap_lock contention during reads of /proc/pid/maps - "mm/mincore: minor clean up for swap cache checking" from Kairui Song performs some cleanup in the swap code - "mm: vm_normal_page*() improvements" from David Hildenbrand provides code cleanup in the pagemap code - "add persistent huge zero folio support" from Pankaj Raghav provides a block layer speedup by optionalls making the huge_zero_pagepersistent, instead of releasing it when its refcount falls to zero - "kho: fixes and cleanups" from Mike Rapoport adds a few touchups to the recently added Kexec Handover feature - "mm: make mm->flags a bitmap and 64-bit on all arches" from Lorenzo Stoakes turns mm_struct.flags into a bitmap. To end the constant struggle with space shortage on 32-bit conflicting with 64-bit's needs - "mm/swapfile.c and swap.h cleanup" from Chris Li cleans up some swap code - "selftests/mm: Fix false positives and skip unsupported tests" from Donet Tom fixes a few things in our selftests code - "prctl: extend PR_SET_THP_DISABLE to only provide THPs when advised" from David Hildenbrand "allows individual processes to opt-out of THP=always into THP=madvise, without affecting other workloads on the system". It's a long story - the [1/N] changelog spells out the considerations - "Add and use memdesc_flags_t" from Matthew Wilcox gets us started on the memdesc project. Please see https://kernelnewbies.org/MatthewWilcox/Memdescs and https://blogs.oracle.com/linux/post/introducing-memdesc - "Tiny optimization for large read operations" from Chi Zhiling improves the efficiency of the pagecache read path - "Better split_huge_page_test result check" from Zi Yan improves our folio splitting selftest code - "test that rmap behaves as expected" from Wei Yang adds some rmap selftests - "remove write_cache_pages()" from Christoph Hellwig removes that function and converts its two remaining callers - "selftests/mm: uffd-stress fixes" from Dev Jain fixes some UFFD selftests issues - "introduce kernel file mapped folios" from Boris Burkov introduces the concept of "kernel file pages". Using these permits btrfs to account its metadata pages to the root cgroup, rather than to the cgroups of random inappropriate tasks - "mm/pageblock: improve readability of some pageblock handling" from Wei Yang provides some readability improvements to the page allocator code - "mm/damon: support ARM32 with LPAE" from SeongJae Park teaches DAMON to understand arm32 highmem - "tools: testing: Use existing atomic.h for vma/maple tests" from Brendan Jackman performs some code cleanups and deduplication under tools/testing/ - "maple_tree: Fix testing for 32bit compiles" from Liam Howlett fixes a couple of 32-bit issues in tools/testing/radix-tree.c - "kasan: unify kasan_enabled() and remove arch-specific implementations" from Sabyrzhan Tasbolatov moves KASAN arch-specific initialization code into a common arch-neutral implementation - "mm: remove zpool" from Johannes Weiner removes zspool - an indirection layer which now only redirects to a single thing (zsmalloc) - "mm: task_stack: Stack handling cleanups" from Pasha Tatashin makes a couple of cleanups in the fork code - "mm: remove nth_page()" from David Hildenbrand makes rather a lot of adjustments at various nth_page() callsites, eventually permitting the removal of that undesirable helper function - "introduce kasan.write_only option in hw-tags" from Yeoreum Yun creates a KASAN read-only mode for ARM, using that architecture's memory tagging feature. It is felt that a read-only mode KASAN is suitable for use in production systems rather than debug-only - "mm: hugetlb: cleanup hugetlb folio allocation" from Kefeng Wang does some tidying in the hugetlb folio allocation code - "mm: establish const-correctness for pointer parameters" from Max Kellermann makes quite a number of the MM API functions more accurate about the constness of their arguments. This was getting in the way of subsystems (in this case CEPH) when they attempt to improving their own const/non-const accuracy - "Cleanup free_pages() misuse" from Vishal Moola fixes a number of code sites which were confused over when to use free_pages() vs __free_pages() - "Add Rust abstraction for Maple Trees" from Alice Ryhl makes the mapletree code accessible to Rust. Required by nouveau and by its forthcoming successor: the new Rust Nova driver - "selftests/mm: split_huge_page_test: split_pte_mapped_thp improvements" from David Hildenbrand adds a fix and some cleanups to the thp selftesting code - "mm, swap: introduce swap table as swap cache (phase I)" from Chris Li and Kairui Song is the first step along the path to implementing "swap tables" - a new approach to swap allocation and state tracking which is expected to yield speed and space improvements. This patchset itself yields a 5-20% performance benefit in some situations - "Some ptdesc cleanups" from Matthew Wilcox utilizes the new memdesc layer to clean up the ptdesc code a little - "Fix va_high_addr_switch.sh test failure" from Chunyu Hu fixes some issues in our 5-level pagetable selftesting code - "Minor fixes for memory allocation profiling" from Suren Baghdasaryan addresses a couple of minor issues in relatively new memory allocation profiling feature - "Small cleanups" from Matthew Wilcox has a few cleanups in preparation for more memdesc work - "mm/damon: add addr_unit for DAMON_LRU_SORT and DAMON_RECLAIM" from Quanmin Yan makes some changes to DAMON in furtherance of supporting arm highmem - "selftests/mm: Add -Wunreachable-code and fix warnings" from Muhammad Anjum adds that compiler check to selftests code and fixes the fallout, by removing dead code - "Improvements to Victim Process Thawing and OOM Reaper Traversal Order" from zhongjinji makes a number of improvements in the OOM killer: mainly thawing a more appropriate group of victim threads so they can release resources - "mm/damon: misc fixups and improvements for 6.18" from SeongJae Park is a bunch of small and unrelated fixups for DAMON - "mm/damon: define and use DAMON initialization check function" from SeongJae Park implement reliability and maintainability improvements to a recently-added bug fix - "mm/damon/stat: expose auto-tuned intervals and non-idle ages" from SeongJae Park provides additional transparency to userspace clients of the DAMON_STAT information - "Expand scope of khugepaged anonymous collapse" from Dev Jain removes some constraints on khubepaged's collapsing of anon VMAs. It also increases the success rate of MADV_COLLAPSE against an anon vma - "mm: do not assume file == vma->vm_file in compat_vma_mmap_prepare()" from Lorenzo Stoakes moves us further towards removal of file_operations.mmap(). This patchset concentrates upon clearing up the treatment of stacked filesystems - "mm: Improve mlock tracking for large folios" from Kiryl Shutsemau provides some fixes and improvements to mlock's tracking of large folios. /proc/meminfo's "Mlocked" field became more accurate - "mm/ksm: Fix incorrect accounting of KSM counters during fork" from Donet Tom fixes several user-visible KSM stats inaccuracies across forks and adds selftest code to verify these counters - "mm_slot: fix the usage of mm_slot_entry" from Wei Yang addresses some potential but presently benign issues in KSM's mm_slot handling * tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (372 commits) mm: swap: check for stable address space before operating on the VMA mm: convert folio_page() back to a macro mm/khugepaged: use start_addr/addr for improved readability hugetlbfs: skip VMAs without shareable locks in hugetlb_vmdelete_list alloc_tag: fix boot failure due to NULL pointer dereference mm: silence data-race in update_hiwater_rss mm/memory-failure: don't select MEMORY_ISOLATION mm/khugepaged: remove definition of struct khugepaged_mm_slot mm/ksm: get mm_slot by mm_slot_entry() when slot is !NULL hugetlb: increase number of reserving hugepages via cmdline selftests/mm: add fork inheritance test for ksm_merging_pages counter mm/ksm: fix incorrect KSM counter handling in mm_struct during fork drivers/base/node: fix double free in register_one_node() mm: remove PMD alignment constraint in execmem_vmalloc() mm/memory_hotplug: fix typo 'esecially' -> 'especially' mm/rmap: improve mlock tracking for large folios mm/filemap: map entire large folio faultaround mm/fault: try to map the entire file folio in finish_fault() mm/rmap: mlock large folios in try_to_unmap_one() mm/rmap: fix a mlock race condition in folio_referenced_one() ... |
||
|
Linus Torvalds
|
24d9e8b3c9 |
slab updates for 6.18
-----BEGIN PGP SIGNATURE----- iQFPBAABCAA5FiEEe7vIQRWZI0iWSE3xu+CwddJFiJoFAmja74IbFIAAAAAABAAO bWFudTIsMi41KzEuMTEsMiwyAAoJELvgsHXSRYiacR4H/04aBsr7LZnTJVeZLQwK HKoOwXBqiQyqPdjKXGKnp7Mh9gRp2W3V11VsYTuDJNUS+Vz5YXW0z8cRnUfZ3SYs l+GZC3vZeAy2EVJE1U6Mb673hU8vziI80IO2q/tGzaj9a+wC3L0lemc+YFQTwG+u pMtt8zU2vHRjgkx8TNNqJBBOLLDV+RzIl8pqXVnh4eju6x6ZdreGnjXaePYMdjG0 fXLf9XwIeWREqbfeOCEOB50Ts71kkdiOeskwnJyfCTDT8WTu3zC/dICqfh66e3Gg 8hQKvMsuKpm/FwbtgdB0WvaDjENH6PmY+ubLYVxwvNpcsTSqfe0IYGm+HpUP+TPf m+Y= =w+JL -----END PGP SIGNATURE----- Merge tag 'slab-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab Pull slab updates from Vlastimil Babka: - A new layer for caching objects for allocation and free via percpu arrays called sheaves. The aim is to combine the good parts of SLAB (lower-overhead and simpler percpu caching, compared to SLUB) without the past issues with arrays for freeing remote NUMA node objects and their flushing. It also allows more efficient kfree_rcu(), and cheaper object preallocations for cases where the exact number of objects is unknown, but an upper bound is. Currently VMAs and maple nodes are using this new caching, with a plan to enable it for all caches and remove the complex SLUB fastpath based on cpu (partial) slabs and this_cpu_cmpxchg_double(). (Vlastimil Babka, with Liam Howlett and Pedro Falcato for the maple tree changes) - Re-entrant kmalloc_nolock(), which allows opportunistic allocations from NMI and tracing/kprobe contexts. Building on prior page allocator and memcg changes, it will result in removing BPF-specific caches on top of slab (Alexei Starovoitov) - Various fixes and cleanups. (Kuan-Wei Chiu, Matthew Wilcox, Suren Baghdasaryan, Ye Liu) * tag 'slab-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: (40 commits) slab: Introduce kmalloc_nolock() and kfree_nolock(). slab: Reuse first bit for OBJEXTS_ALLOC_FAIL slab: Make slub local_(try)lock more precise for LOCKDEP mm: Introduce alloc_frozen_pages_nolock() mm: Allow GFP_ACCOUNT to be used in alloc_pages_nolock(). locking/local_lock: Introduce local_lock_is_locked(). maple_tree: Convert forking to use the sheaf interface maple_tree: Add single node allocation support to maple state maple_tree: Prefilled sheaf conversion and testing tools/testing: Add support for prefilled slab sheafs maple_tree: Replace mt_free_one() with kfree() maple_tree: Use kfree_rcu in ma_free_rcu testing/radix-tree/maple: Hack around kfree_rcu not existing tools/testing: include maple-shim.c in maple.c maple_tree: use percpu sheaves for maple_node_cache mm, vma: use percpu sheaves for vm_area_struct cache tools/testing: Add support for changes to slab for sheaves slab: allow NUMA restricted allocations to use percpu sheaves tools/testing/vma: Implement vm_refcnt reset slab: skip percpu sheaves for remote object freeing ... |
||
|
Linus Torvalds
|
07fdad3a93 |
Networking changes for 6.18.
Core & protocols
----------------
- Improve drop account scalability on NUMA hosts for RAW and UDP sockets
and the backlog, almost doubling the Pps capacity under DoS.
- Optimize the UDP RX performance under stress, reducing contention,
revisiting the binary layout of the involved data structs and
implementing NUMA-aware locking. This improves UDP RX performance by
an additional 50%, even more under extreme conditions.
- Add support for PSP encryption of TCP connections; this mechanism has
some similarities with IPsec and TLS, but offers superior HW offloads
capabilities.
- Ongoing work to support Accurate ECN for TCP. AccECN allows more than
one congestion notification signal per RTT and is a building block for
Low Latency, Low Loss, and Scalable Throughput (L4S).
- Reorganize the TCP socket binary layout for data locality, reducing
the number of touched cachelines in the fastpath.
- Refactor skb deferral free to better scale on large multi-NUMA hosts,
this improves TCP and UDP RX performances significantly on such HW.
- Increase the default socket memory buffer limits from 256K to 4M to
better fit modern link speeds.
- Improve handling of setups with a large number of nexthop, making dump
operating scaling linearly and avoiding unneeded synchronize_rcu() on
delete.
- Improve bridge handling of VLAN FDB, storing a single entry per bridge
instead of one entry per port; this makes the dump order of magnitude
faster on large switches.
- Restore IP ID correctly for encapsulated packets at GSO segmentation
time, allowing GRO to merge packets in more scenarios.
- Improve netfilter matching performance on large sets.
- Improve MPTCP receive path performance by leveraging recently
introduced core infrastructure (skb deferral free) and adopting recent
TCP autotuning changes.
- Allow bridges to redirect to a backup port when the bridge port is
administratively down.
- Introduce MPTCP 'laminar' endpoint that con be used only once per
connection and simplify common MPTCP setups.
- Add RCU safety to dst->dev, closing a lot of possible races.
- A significant crypto library API for SCTP, MPTCP and IPv6 SR, reducing
code duplication.
- Supports pulling data from an skb frag into the linear area of an XDP
buffer.
Things we sprinkled into general kernel code
--------------------------------------------
- Generate netlink documentation from YAML using an integrated
YAML parser.
Driver API
----------
- Support using IPv6 Flow Label in Rx hash computation and RSS queue
selection.
- Introduce API for fetching the DMA device for a given queue, allowing
TCP zerocopy RX on more H/W setups.
- Make XDP helpers compatible with unreadable memory, allowing more
easily building DevMem-enabled drivers with a unified XDP/skbs
datapath.
- Add a new dedicated ethtool callback enabling drivers to provide the
number of RX rings directly, improving efficiency and clarity in RX
ring queries and RSS configuration.
- Introduce a burst period for the health reporter, allowing better
handling of multiple errors due to the same root cause.
- Support for DPLL phase offset exponential moving average, controlling
the average smoothing factor.
Device drivers
--------------
- Add a new Huawei driver for 3rd gen NIC (hinic3).
- Add a new SpacemiT driver for K1 ethernet MAC.
- Add a generic abstraction for shared memory communication devices
(dibps)
- Ethernet high-speed NICs:
- nVidia/Mellanox:
- Use multiple per-queue doorbell, to avoid MMIO contention issues
- support adjacent functions, allowing them to delegate their
SR-IOV VFs to sibling PFs
- support RSS for IPSec offload
- support exposing raw cycle counters in PTP and mlx5
- support for disabling host PFs.
- Intel (100G, ice, idpf):
- ice: support for SRIOV VFs over an Active-Active link aggregate
- ice: support for firmware logging via debugfs
- ice: support for Earliest TxTime First (ETF) hardware offload
- idpf: support basic XDP functionalities and XSk
- Broadcom (bnxt):
- support Hyper-V VF ID
- dynamic SRIOV resource allocations for RoCE
- Meta (fbnic):
- support queue API, zero-copy Rx and Tx
- support basic XDP functionalities
- devlink health support for FW crashes and OTP mem corruptions
- expand hardware stats coverage to FEC, PHY, and Pause
- Wangxun:
- support ethtool coalesce options
- support for multiple RSS contexts
- Ethernet virtual:
- Macsec:
- replace custom netlink attribute checks with policy-level checks
- Bonding:
- support aggregator selection based on port priority
- Microsoft vNIC:
- use page pool fragments for RX buffers instead of full pages to
improve memory efficiency
- Ethernet NICs consumer, and embedded:
- Qualcomm: support Ethernet function for IPQ9574 SoC
- Airoha: implement wlan offloading via NPU
- Freescale
- enetc: add NETC timer PTP driver and add PTP support
- fec: enable the Jumbo frame support for i.MX8QM
- Renesas (R-Car S4): support HW offloading for layer 2 switching
- support for RZ/{T2H, N2H} SoCs
- Cadence (macb): support TAPRIO traffic scheduling
- TI:
- support for Gigabit ICSS ethernet SoC (icssm-prueth)
- Synopsys (stmmac): a lot of cleanups
- Ethernet PHYs:
- Support 10g-qxgmi phy-mode for AQR412C, Felix DSA and Lynx PCS
driver
- Support bcm63268 GPHY power control
- Support for Micrel lan8842 PHY and PTP
- Support for Aquantia AQR412 and AQR115
- CAN:
- a large CAN-XL preparation work
- reorganize raw_sock and uniqframe struct to minimize memory usage
- rcar_canfd: update the CAN-FD handling
- WiFi:
- extended Neighbor Awareness Networking (NAN) support
- S1G channel representation cleanup
- improve S1G support
- WiFi drivers:
- Intel (iwlwifi):
- major refactor and cleanup
- Broadcom (brcm80211):
- support for AP isolation
- RealTek (rtw88/89) rtw88/89:
- preparation work for RTL8922DE support
- MediaTek (mt76):
- HW restart improvements
- MLO support
- Qualcomm/Atheros (ath10k_
- GTK rekey fixes
- Bluetooth drivers:
- btusb: support for several new IDs for MT7925
- btintel: support for BlazarIW core
- btintel_pcie: support for _suspend() / _resume()
- btintel_pcie: support for Scorpious, Panther Lake-H484 IDs
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"Core & protocols:
- Improve drop account scalability on NUMA hosts for RAW and UDP
sockets and the backlog, almost doubling the Pps capacity under DoS
- Optimize the UDP RX performance under stress, reducing contention,
revisiting the binary layout of the involved data structs and
implementing NUMA-aware locking. This improves UDP RX performance
by an additional 50%, even more under extreme conditions
- Add support for PSP encryption of TCP connections; this mechanism
has some similarities with IPsec and TLS, but offers superior HW
offloads capabilities
- Ongoing work to support Accurate ECN for TCP. AccECN allows more
than one congestion notification signal per RTT and is a building
block for Low Latency, Low Loss, and Scalable Throughput (L4S)
- Reorganize the TCP socket binary layout for data locality, reducing
the number of touched cachelines in the fastpath
- Refactor skb deferral free to better scale on large multi-NUMA
hosts, this improves TCP and UDP RX performances significantly on
such HW
- Increase the default socket memory buffer limits from 256K to 4M to
better fit modern link speeds
- Improve handling of setups with a large number of nexthop, making
dump operating scaling linearly and avoiding unneeded
synchronize_rcu() on delete
- Improve bridge handling of VLAN FDB, storing a single entry per
bridge instead of one entry per port; this makes the dump order of
magnitude faster on large switches
- Restore IP ID correctly for encapsulated packets at GSO
segmentation time, allowing GRO to merge packets in more scenarios
- Improve netfilter matching performance on large sets
- Improve MPTCP receive path performance by leveraging recently
introduced core infrastructure (skb deferral free) and adopting
recent TCP autotuning changes
- Allow bridges to redirect to a backup port when the bridge port is
administratively down
- Introduce MPTCP 'laminar' endpoint that con be used only once per
connection and simplify common MPTCP setups
- Add RCU safety to dst->dev, closing a lot of possible races
- A significant crypto library API for SCTP, MPTCP and IPv6 SR,
reducing code duplication
- Supports pulling data from an skb frag into the linear area of an
XDP buffer
Things we sprinkled into general kernel code:
- Generate netlink documentation from YAML using an integrated YAML
parser
Driver API:
- Support using IPv6 Flow Label in Rx hash computation and RSS queue
selection
- Introduce API for fetching the DMA device for a given queue,
allowing TCP zerocopy RX on more H/W setups
- Make XDP helpers compatible with unreadable memory, allowing more
easily building DevMem-enabled drivers with a unified XDP/skbs
datapath
- Add a new dedicated ethtool callback enabling drivers to provide
the number of RX rings directly, improving efficiency and clarity
in RX ring queries and RSS configuration
- Introduce a burst period for the health reporter, allowing better
handling of multiple errors due to the same root cause
- Support for DPLL phase offset exponential moving average,
controlling the average smoothing factor
Device drivers:
- Add a new Huawei driver for 3rd gen NIC (hinic3)
- Add a new SpacemiT driver for K1 ethernet MAC
- Add a generic abstraction for shared memory communication
devices (dibps)
- Ethernet high-speed NICs:
- nVidia/Mellanox:
- Use multiple per-queue doorbell, to avoid MMIO contention
issues
- support adjacent functions, allowing them to delegate their
SR-IOV VFs to sibling PFs
- support RSS for IPSec offload
- support exposing raw cycle counters in PTP and mlx5
- support for disabling host PFs.
- Intel (100G, ice, idpf):
- ice: support for SRIOV VFs over an Active-Active link
aggregate
- ice: support for firmware logging via debugfs
- ice: support for Earliest TxTime First (ETF) hardware offload
- idpf: support basic XDP functionalities and XSk
- Broadcom (bnxt):
- support Hyper-V VF ID
- dynamic SRIOV resource allocations for RoCE
- Meta (fbnic):
- support queue API, zero-copy Rx and Tx
- support basic XDP functionalities
- devlink health support for FW crashes and OTP mem corruptions
- expand hardware stats coverage to FEC, PHY, and Pause
- Wangxun:
- support ethtool coalesce options
- support for multiple RSS contexts
- Ethernet virtual:
- Macsec:
- replace custom netlink attribute checks with policy-level
checks
- Bonding:
- support aggregator selection based on port priority
- Microsoft vNIC:
- use page pool fragments for RX buffers instead of full pages
to improve memory efficiency
- Ethernet NICs consumer, and embedded:
- Qualcomm: support Ethernet function for IPQ9574 SoC
- Airoha: implement wlan offloading via NPU
- Freescale
- enetc: add NETC timer PTP driver and add PTP support
- fec: enable the Jumbo frame support for i.MX8QM
- Renesas (R-Car S4):
- support HW offloading for layer 2 switching
- support for RZ/{T2H, N2H} SoCs
- Cadence (macb): support TAPRIO traffic scheduling
- TI:
- support for Gigabit ICSS ethernet SoC (icssm-prueth)
- Synopsys (stmmac): a lot of cleanups
- Ethernet PHYs:
- Support 10g-qxgmi phy-mode for AQR412C, Felix DSA and Lynx PCS
driver
- Support bcm63268 GPHY power control
- Support for Micrel lan8842 PHY and PTP
- Support for Aquantia AQR412 and AQR115
- CAN:
- a large CAN-XL preparation work
- reorganize raw_sock and uniqframe struct to minimize memory
usage
- rcar_canfd: update the CAN-FD handling
- WiFi:
- extended Neighbor Awareness Networking (NAN) support
- S1G channel representation cleanup
- improve S1G support
- WiFi drivers:
- Intel (iwlwifi):
- major refactor and cleanup
- Broadcom (brcm80211):
- support for AP isolation
- RealTek (rtw88/89) rtw88/89:
- preparation work for RTL8922DE support
- MediaTek (mt76):
- HW restart improvements
- MLO support
- Qualcomm/Atheros (ath10k):
- GTK rekey fixes
- Bluetooth drivers:
- btusb: support for several new IDs for MT7925
- btintel: support for BlazarIW core
- btintel_pcie: support for _suspend() / _resume()
- btintel_pcie: support for Scorpious, Panther Lake-H484 IDs"
* tag 'net-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1536 commits)
net: stmmac: Add support for Allwinner A523 GMAC200
dt-bindings: net: sun8i-emac: Add A523 GMAC200 compatible
Revert "Documentation: net: add flow control guide and document ethtool API"
octeontx2-pf: fix bitmap leak
octeontx2-vf: fix bitmap leak
net/mlx5e: Use extack in set rxfh callback
net/mlx5e: Introduce mlx5e_rss_params for RSS configuration
net/mlx5e: Introduce mlx5e_rss_init_params
net/mlx5e: Remove unused mdev param from RSS indir init
net/mlx5: Improve QoS error messages with actual depth values
net/mlx5e: Prevent entering switchdev mode with inconsistent netns
net/mlx5: HWS, Generalize complex matchers
net/mlx5: Improve write-combining test reliability for ARM64 Grace CPUs
selftests/net: add tcp_port_share to .gitignore
Revert "net/mlx5e: Update and set Xon/Xoff upon MTU set"
net: add NUMA awareness to skb_attempt_defer_free()
net: use llist for sd->defer_list
net: make softnet_data.defer_count an atomic
selftests: drv-net: psp: add tests for destroying devices
selftests: drv-net: psp: add test for auto-adjusting TCP MSS
...
|
||
|
Tony Ambardar
|
63d2247e2e |
libbpf: Fix missing #pragma in libbpf_utils.c
The recent sha256 patch uses a GCC pragma to suppress compile errors for
a packed struct, but omits a needed pragma (see related link) and thus
still raises errors: (e.g. on GCC 12.3 armhf)
libbpf_utils.c:153:29: error: packed attribute causes inefficient alignment for ‘__val’ [-Werror=attributes]
153 | struct __packed_u32 { __u32 __val; } __attribute__((packed));
| ^~~~~
Resolve by adding the GCC diagnostic pragma to ignore "-Wattributes".
Link: https://lore.kernel.org/bpf/CAP-5=fXURWoZu2j6Y8xQy23i7=DfgThq3WC1RkGFBx-4moQKYQ@mail.gmail.com/
Fixes:
|
||
|
Eduard Zingerman
|
2ce61c63e7 |
selftests/bpf: Add tests for rejection of ALU ops with negative offsets
Define a simple program using MOD, DIV, ADD instructions,
make sure that the program is rejected if invalid offset
field is used for instruction.
These are test cases for
commit
|
||
|
Ian Rogers
|
2836ed1748 |
perf capstone: Remove open_capstone_handle
open_capstone_handle is similar to capstone_init and used only by symbol__disassemble_capstone. symbol__disassemble_capstone_powerpc already uses capstone_init, transition symbol__disassemble_capstone and eliminate open_capstone_handle. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
95931d9a59 |
perf libbfd: Move libbfd functionality to its own file
Move symbolization and srcline libbfd dependencies to a separate libbfd.c. This mirrors moving llvm and capstone code. While this code is deprecated as it is part of BUILD_NONDISTRO license incompatible code, moving the code to its own file minimizes disruption in the main files. disasm_bpf.c is moved to libbfd.c also except for symbol__disassemble_bpf_image which is currently more of a placeholder function rather than something that provides disassembly support. demangle-cxx.cpp code isn't migrated as it is very limited. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
d9007afca0 |
perf llvm: Move llvm functionality into its own file
LLVM disassembly support was in disasm.c and addr2line support in srcline.c. Move support out of these files into llvm.[ch] and remove LLVM includes from those files. As disassembly routines can fail, make failure the only option without HAVE_LIBLLVM_SUPPORT. For simplicity's sake, duplicate the read_symbol utility function. The intent with moving LLVM support into a single file is that dynamic support, using dlopen for libllvm, can be added in later patches. This can potentially always succeed or fail, so relying on ifdefs isn't sufficient. Using dlopen is a useful option to minimize the perf tools dependencies and potentially size. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Linus Torvalds
|
05a54fa773 |
sound updates for 6.18-rc1
It's been relatively calm in this cycle from the feature POV, but
there were lots of cleanup works in the wide-range of code for
converting with the auto-cleanup macros like guard().
The mostly user-visible changes are the support of a couple of new
compress-offload API extensions, and the support of new ASoC codec /
platform drivers as well as USB-audio quirks.
Here we go with some highlights:
Core:
- Compress-offload API extension for 64bit timestamp support
- Compress-offload API extension for OPUS codec support
- Workaround for PCM locking issue with PREEMPT_RT and softirq
- KCSAN warning fix for ALSA sequencer core
ASoC:
- Continued cleanup works for ASoC core APIs
- Lots of cleanups and conversions of DT bindings
- Substantial maintainance work on the Intel AVS drivers
- Support for Qualcomm Glymur and PM4125, Realtek RT1321, Shanghai
FourSemi FS2104/5S, Texas Instruments PCM1754 and TAS2783A
- Remove support for TI WL1273 for old Nokia systems
USB-audio:
- Support for Tascam US-144mkII, Presonus S1824c support
- More flexible quirk option handling
- Fix for USB MIDI timer bug triggered by fuzzer
Others:
- A large series of cleanups with guard() & co macros over (non-ASoC)
sound drivers (PCI, ISA, HD-audio, USB-audio, drivers, etc)
- TAS5825 HD-audio side-codec support
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Merge tag 'sound-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"It's been relatively calm in this cycle from the feature POV, but
there were lots of cleanup works in the wide-range of code for
converting with the auto-cleanup macros like guard().
The mostly user-visible changes are the support of a couple of new
compress-offload API extensions, and the support of new ASoC codec /
platform drivers as well as USB-audio quirks.
Here we go with some highlights:
Core:
- Compress-offload API extension for 64bit timestamp support
- Compress-offload API extension for OPUS codec support
- Workaround for PCM locking issue with PREEMPT_RT and softirq
- KCSAN warning fix for ALSA sequencer core
ASoC:
- Continued cleanup works for ASoC core APIs
- Lots of cleanups and conversions of DT bindings
- Substantial maintainance work on the Intel AVS drivers
- Support for Qualcomm Glymur and PM4125, Realtek RT1321, Shanghai
FourSemi FS2104/5S, Texas Instruments PCM1754 and TAS2783A
- Remove support for TI WL1273 for old Nokia systems
USB-audio:
- Support for Tascam US-144mkII, Presonus S1824c support
- More flexible quirk option handling
- Fix for USB MIDI timer bug triggered by fuzzer
Others:
- A large series of cleanups with guard() & co macros over (non-ASoC)
sound drivers (PCI, ISA, HD-audio, USB-audio, drivers, etc)
- TAS5825 HD-audio side-codec support"
* tag 'sound-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (454 commits)
ALSA: usb-audio: don't hardcode gain for output channel of Presonus Studio
ALSA: usb-audio: add the initial mix for Presonus Studio 1824c
ALSA: doc: improved docs about quirk_flags in snd-usb-audio
ALSA: usb-audio: make param quirk_flags change-able in runtime
ALSA: usb-audio: improve module param quirk_flags
ALSA: usb-audio: add two-way convert between name and bit for QUIRK_FLAG_*
ALSA: usb-audio: fix race condition to UAF in snd_usbmidi_free
ALSA: usb-audio: add mono main switch to Presonus S1824c
ALSA: compress: document 'chan_map' member in snd_dec_opus
ASoC: cs35l56: Add support for CS35L56 B2 silicon
ASoC: cs35l56: Set fw_regs table after getting REVID
ALSA: hda/realtek: Add quirk for HP Spectre 14t-ea100
ASoc: tas2783A: Fix an error code in probe()
ASoC: tlv320aic3x: Fix class-D initialization for tlv320aic3007
ASoC: qcom: sc8280xp: use sa8775p/ subdir for QCS9100 / QCS9075
ASoC: stm32: sai: manage context in set_sysclk callback
ASoC: renesas: msiof: ignore 1st FSERR
ASoC: renesas: msiof: Add note for The possibility of R/L opposite Capture
ASoC: renesas: msiof: setup both (Playback/Capture) in the same time
ASoC: renesas: msiof: tidyup DMAC stop timing
...
|
||
|
Ian Rogers
|
bbb99668b5 |
perf capstone: Move capstone functionality into its own file
Capstone disassembly support was split between disasm.c and print_insn.c. Move support out of these files into capstone.[ch] and remove include capstone/capstone.h from those files. As disassembly routines can fail, make failure the only option without HAVE_LIBCAPSTONE_SUPPORT. For simplicity's sake, duplicate the read_symbol utility function. The intent with moving capstone support into a single file is that dynamic support, using dlopen for libcapstone, can be added in later patches. This can potentially always succeed or fail, so relying on ifdefs isn't sufficient. Using dlopen is a useful option to minimize the perf tools dependencies and potentially size. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
c0b8a55a11 |
perf map: Constify objdump offset/address conversion APIs
Make the map argument const as the conversion act won't modify the map and this allows other callers to use a const struct map. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Dapeng Mi
|
cbeb3d4784 |
perf tools kvm: Use "cycles" to sample guest for "kvm top" on Intel
As same reason with previous patch, use "cyles" instead of "cycles:P"
event by default to sample guest for "perf kvm top" command on Intel
platforms.
Fixes:
|
||
|
Dapeng Mi
|
c1afca106e |
perf tools kvm: Use "cycles" to sample guest for "kvm record" on Intel
After KVM supports PEBS for guest on Intel platforms
(https://lore.kernel.org/all/20220411101946.20262-1-likexu@tencent.com/),
host loses the capability to sample guest with PEBS since all PEBS related
MSRs are switched to guest value after vm-entry, like IA32_DS_AREA MSR is
switched to guest GVA at vm-entry. This would lead to "perf kvm record"
fails to sample guest on Intel platforms since "cycles:P" event is used to
sample guest by default as below case shows.
sudo perf kvm record -a
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.787 MB perf.data.guest ]
So to ensure guest record can be sampled successfully, use "cycles"
instead of "cycles:P" to sample guest record by default on Intel
platforms. With this patch, the guest record can be sampled
successfully.
sudo perf kvm record -a
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.783 MB perf.data.guest (23 samples) ]
Fixes:
|
||
|
Dapeng Mi
|
0f53264d71 |
perf tools: Add helper x86__is_intel_cpu()
Add helper x86__is_intel_cpu() to indicate if it's a x86 intel platform. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Dapeng Mi
|
45ff39f6e7 |
perf tools kvm: Fix the potential out of range memory access issue
kvm_add_default_arch_event() helper may add 2 extra options but it directly modifies the original argv[] array. This may cause out of range memory access. Fix this issue. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Dapeng Mi
|
6f58cf1045 |
perf tools kwork: Add missed memory allocation check and free
Same with previous builtin-kvm code, perf_kwork__record() doesn't check the memory allocation and explicitly free the allocated memory. Just fix it. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Dapeng Mi
|
9262fa242b |
perf tools kvm: Add missed memory allocation check and free
Current code allocates rec_argv[] array, but doesn't check if the allocation is successful and explicitly free the rec_argv[] array. Add them back. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
f0015d8149 |
tools include: Add headers to make tools builds more hermetic
tools/lib/bpf/netlink.c depends on rtnetlink.h and genetlink.h (via nlattr.h) which then depends on if_addr.h. tools/bpf/bpftool/link.c depends on netfilter_arp.h which then depends on netfilter.h. Update check-headers.sh to keep these in sync. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: André Almeida <andrealmeid@igalia.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Darren Hart <dvhart@infradead.org> Cc: David S. Miller <davem@davemloft.net> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Ido Schimmel <idosch@nvidia.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jason Xing <kerneljasonxing@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jonas Gottlieb <jonas.gottlieb@stackit.cloud> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Maurice Lambert <mauricelambert434@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Machata <petrm@nvidia.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yury Norov <yury.norov@gmail.com> Cc: Yuyang Huang <yuyanghuang@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
57a64919f2 |
tools include: Replace tools linux/gfp_types.h with kernel version
Previously the header gfp_types.h in tools points to the gfp_types.h in include/linux. This is a problem for tools like perf, since the tools header is supposed to be independent of the kernel headers. Therefore this patch copies the kernel header to the tools header and adds a header check. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: André Almeida <andrealmeid@igalia.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Darren Hart <dvhart@infradead.org> Cc: David S. Miller <davem@davemloft.net> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Ido Schimmel <idosch@nvidia.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jason Xing <kerneljasonxing@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jonas Gottlieb <jonas.gottlieb@stackit.cloud> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Maurice Lambert <mauricelambert434@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Machata <petrm@nvidia.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yury Norov <yury.norov@gmail.com> Cc: Yuyang Huang <yuyanghuang@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
f38ce0209a |
tools bitmap: Add missing asm-generic/bitsperlong.h include
small_const_nbits is defined in asm-generic/bitsperlong.h which bitmap.h uses but doesn't include causing build failures in some build systems. Add the missing #include. Note the bitmap.h in tools has diverged from that of the kernel, so no changes are made there. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Yury Norov <yury.norov@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: André Almeida <andrealmeid@igalia.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Darren Hart <dvhart@infradead.org> Cc: David S. Miller <davem@davemloft.net> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Ido Schimmel <idosch@nvidia.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jason Xing <kerneljasonxing@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jonas Gottlieb <jonas.gottlieb@stackit.cloud> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Maurice Lambert <mauricelambert434@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Machata <petrm@nvidia.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yuyang Huang <yuyanghuang@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
83fde0ee8f |
perf bench futex: Add missing stdbool.h
futex.h uses bool but lacks stdbool.h which causes build failures in some build systems. Add the missing #include. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: André Almeida <andrealmeid@igalia.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Darren Hart <dvhart@infradead.org> Cc: David S. Miller <davem@davemloft.net> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Ido Schimmel <idosch@nvidia.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jason Xing <kerneljasonxing@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jonas Gottlieb <jonas.gottlieb@stackit.cloud> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Maurice Lambert <mauricelambert434@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Machata <petrm@nvidia.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yury Norov <yury.norov@gmail.com> Cc: Yuyang Huang <yuyanghuang@google.com> Link: https://lore.kernel.org/r/20250905224708.2469021-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
a272195f1c |
perf test: Stat std output don't fail metric only
When running on a hypervisor the expected IPC metric may be missing as the events may fail to be read. Don't expect metric output for this test to avoid it failing. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Veronika Molnarova <vmolnaro@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
8dc364fa48 |
libperf mmap: In user mmap rdpmc avoid undefined behavior
A shift left of a signed 64-bit s64 may overflow and result in undefined behavior caught by ubsan. Switch to a u64 instead. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
de1111f91a |
perf symbol-minimal: Be more defensive when reading build IDs
The note_data at ptr is read as a nhdr but this may yield out-of-bounds reads if there isn't nhdrs worth of data. Be more defensive before doing the reads. This is motivated by address sanitizer capturing out of bounds reads running "perf top". Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Sam James
|
4fc844347e |
perf bpf: Use __builtin_preserve_field_info for GCC compatibility
When exploring building bpf_skel with GCC's BPF support, there was a
build failure because of bpf_core_field_exists vs the mem_hops bitfield:
```
In file included from util/bpf_skel/sample_filter.bpf.c:6:
util/bpf_skel/sample_filter.bpf.c: In function 'perf_get_sample':
tools/perf/libbpf/include/bpf/bpf_core_read.h:169:42: error: cannot take address of bit-field 'mem_hops'
169 | #define ___bpf_field_ref1(field) (&(field))
| ^
tools/perf/libbpf/include/bpf/bpf_helpers.h:222:29: note: in expansion of macro '___bpf_field_ref1'
222 | #define ___bpf_concat(a, b) a ## b
| ^
tools/perf/libbpf/include/bpf/bpf_helpers.h:225:29: note: in expansion of macro '___bpf_concat'
225 | #define ___bpf_apply(fn, n) ___bpf_concat(fn, n)
| ^~~~~~~~~~~~~
tools/perf/libbpf/include/bpf/bpf_core_read.h:173:9: note: in expansion of macro '___bpf_apply'
173 | ___bpf_apply(___bpf_field_ref, ___bpf_narg(args))(args)
| ^~~~~~~~~~~~
tools/perf/libbpf/include/bpf/bpf_core_read.h:188:39: note: in expansion of macro '___bpf_field_ref'
188 | __builtin_preserve_field_info(___bpf_field_ref(field), BPF_FIELD_EXISTS)
| ^~~~~~~~~~~~~~~~
util/bpf_skel/sample_filter.bpf.c:167:29: note: in expansion of macro 'bpf_core_field_exists'
167 | if (bpf_core_field_exists(data->mem_hops))
| ^~~~~~~~~~~~~~~~~~~~~
cc1: error: argument is not a field access
```
___bpf_field_ref1 was adapted for GCC in
|
||
|
Linus Torvalds
|
e1b1d03cee |
for-6.18/block-20250929
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Merge tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block updates from Jens Axboe:
- NVMe pull request via Keith:
- FC target fixes (Daniel)
- Authentication fixes and updates (Martin, Chris)
- Admin controller handling (Kamaljit)
- Target lockdep assertions (Max)
- Keep-alive updates for discovery (Alastair)
- Suspend quirk (Georg)
- MD pull request via Yu:
- Add support for a lockless bitmap.
A key feature for the new bitmap are that the IO fastpath is
lockless. If a user issues lots of write IO to the same bitmap
bit in a short time, only the first write has additional overhead
to update bitmap bit, no additional overhead for the following
writes.
By supporting only resync or recover written data, means in the
case creating new array or replacing with a new disk, there is no
need to do a full disk resync/recovery.
- Switch ->getgeo() and ->bios_param() to using struct gendisk rather
than struct block_device.
- Rust block changes via Andreas. This series adds configuration via
configfs and remote completion to the rnull driver. The series also
includes a set of changes to the rust block device driver API: a few
cleanup patches, and a few features supporting the rnull changes.
The series removes the raw buffer formatting logic from
`kernel::block` and improves the logic available in `kernel::string`
to support the same use as the removed logic.
- floppy arch cleanups
- Reduce the number of dereferencing needed for ublk commands
- Restrict supported sockets for nbd. Mostly done to eliminate a class
of issues perpetually reported by syzbot, by using nonsensical socket
setups.
- A few s390 dasd block fixes
- Fix a few issues around atomic writes
- Improve DMA interation for integrity requests
- Improve how iovecs are treated with regards to O_DIRECT aligment
constraints.
We used to require each segment to adhere to the constraints, now
only the request as a whole needs to.
- Clean up and improve p2p support, enabling use of p2p for metadata
payloads
- Improve locking of request lookup, using SRCU where appropriate
- Use page references properly for brd, avoiding very long RCU sections
- Fix ordering of recursively submitted IOs
- Clean up and improve updating nr_requests for a live device
- Various fixes and cleanups
* tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (164 commits)
s390/dasd: enforce dma_alignment to ensure proper buffer validation
s390/dasd: Return BLK_STS_INVAL for EINVAL from do_dasd_request
ublk: remove redundant zone op check in ublk_setup_iod()
nvme: Use non zero KATO for persistent discovery connections
nvmet: add safety check for subsys lock
nvme-core: use nvme_is_io_ctrl() for I/O controller check
nvme-core: do ioccsz/iorcsz validation only for I/O controllers
nvme-core: add method to check for an I/O controller
blk-cgroup: fix possible deadlock while configuring policy
blk-mq: fix null-ptr-deref in blk_mq_free_tags() from error path
blk-mq: Fix more tag iteration function documentation
selftests: ublk: fix behavior when fio is not installed
ublk: don't access ublk_queue in ublk_unmap_io()
ublk: pass ublk_io to __ublk_complete_rq()
ublk: don't access ublk_queue in ublk_need_complete_req()
ublk: don't access ublk_queue in ublk_check_commit_and_fetch()
ublk: don't pass ublk_queue to ublk_fetch()
ublk: don't access ublk_queue in ublk_config_io_buf()
ublk: don't access ublk_queue in ublk_check_fetch_buf()
ublk: pass q_id and tag to __ublk_check_and_get_req()
...
|
||
|
Arnaldo Carvalho de Melo
|
a395168059 |
tools build: Don't assume libtracefs-devel is always available
perf doesn't use libtracefs and so it doesn't make sense to assume it is always available when building test-all.bin, defeating the feature check speedup it provides. The other tools/build/ users such as rtla, rv, etc call $(feature_check libtracefs) to check its availability instead of using the test-all.bin mechanism, stopping the build and asking for libtracefs-devel to be installed. Remove it from FEATURE_TESTS_BASIC to not have it as available, as noted by Ian Rogers during review. Reviewed-by: Ian Rogers <irogers@google.com> Acked-by: Tomas Glozar <tglozar@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Gabriele Monaco <gmonaco@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
b19a0f6100 |
perf build: Remove libtracefs configuration
libtracefs isn't used by perf but not having it installed causes build warnings. Given the library isn't used, there is no need for the configuration or warnings so remove. Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20250929170600.59000-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Linus Torvalds
|
7f70725741 |
Kbuild updates for 6.18
- Extend modules.builtin.modinfo to include module aliases from MODULE_DEVICE_TABLE for builtin modules so that userspace tools (such as kmod) can verify that a particular module alias will be handled by a builtin module. - Bump the minimum version of LLVM for building the kernel to 15.0.0. - Upgrade several userspace API checks in headers_check.pl to errors. - Unify and consolidate CONFIG_WERROR / W=e handling. - Turn assembler and linker warnings into errors with CONFIG_WERROR / W=e. - Respect CONFIG_WERROR / W=e when building userspace programs (userprogs). - Enable -Werror unconditionally when building host programs (hostprogs). - Support copy_file_range() and data segment alignment in gen_init_cpio to improve performance on filesystems that support reflinks such as btrfs and XFS. - Miscellaneous small changes to scripts and configuration files. Signed-off-by: Nathan Chancellor <nathan@kernel.org> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQR74yXHMTGczQHYypIdayaRccAalgUCaNrp6QAKCRAdayaRccAa ljxRAP4hYocKXeWsiJzkTB199P4QUGWf220a9elBmtdJEed07gD/VBnCbSOxG3RO vS8qbJHwxUFL7a+mDV8RIVXSt99NpAg= =psG/ -----END PGP SIGNATURE----- Merge tag 'kbuild-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux Pull Kbuild updates from Nathan Chancellor: - Extend modules.builtin.modinfo to include module aliases from MODULE_DEVICE_TABLE for builtin modules so that userspace tools (such as kmod) can verify that a particular module alias will be handled by a builtin module - Bump the minimum version of LLVM for building the kernel to 15.0.0 - Upgrade several userspace API checks in headers_check.pl to errors - Unify and consolidate CONFIG_WERROR / W=e handling - Turn assembler and linker warnings into errors with CONFIG_WERROR / W=e - Respect CONFIG_WERROR / W=e when building userspace programs (userprogs) - Enable -Werror unconditionally when building host programs (hostprogs) - Support copy_file_range() and data segment alignment in gen_init_cpio to improve performance on filesystems that support reflinks such as btrfs and XFS - Miscellaneous small changes to scripts and configuration files * tag 'kbuild-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (47 commits) modpost: Initialize builtin_modname to stop SIGSEGVs Documentation: kbuild: note CONFIG_DEBUG_EFI in reproducible builds kbuild: vmlinux.unstripped should always depend on .vmlinux.export.o modpost: Create modalias for builtin modules modpost: Add modname to mod_device_table alias scsi: Always define blogic_pci_tbl structure kbuild: extract modules.builtin.modinfo from vmlinux.unstripped kbuild: keep .modinfo section in vmlinux.unstripped kbuild: always create intermediate vmlinux.unstripped s390: vmlinux.lds.S: Reorder sections KMSAN: Remove tautological checks objtool: Drop noinstr hack for KCSAN_WEAK_MEMORY lib/Kconfig.debug: Drop CLANG_VERSION check from DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT riscv: Remove ld.lld version checks from many TOOLCHAIN_HAS configs riscv: Unconditionally use linker relaxation riscv: Remove version check for LTO_CLANG selects powerpc: Drop unnecessary initializations in __copy_inst_from_kernel_nofault() mips: Unconditionally select ARCH_HAS_CURRENT_STACK_POINTER arm64: Remove tautological LLVM Kconfig conditions ARM: Clean up definition of ARM_HAS_GROUP_RELOCS ... |
||
|
Linus Torvalds
|
c0f53f0d2e |
linux_kselftest-next-6.18-rc1
- Fixes watchdog test to exit when device doesn't support keep alive - Fix missing header build complaints during out of tree build - A few minor fixes to git ignore - MAINTAINERS file change to update dma_map_benchmark -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmjbD5YACgkQCwJExA0N QxzUPw//U/sUb/+3eAOvF3A698j54u7Phtm9VTzyXdGmZ3tXDsnkP1spRoK32F5d kO2qhTIGPoo8FKS8CDL8a8UUr3TvqEd7+8Hcv37s/JluYCDnLuRJ87XTAXoH2vWy LkLD41Gt2BySH//99ciBB+N3DuAKc/+Ln5YXgPTIkzOEm+8a6Ux0lW5RjF+RzkH9 jGXyoSFdeQcWKEz/CJ9Mp7gwgwig9KTAIL62hB69aP35Wjbw+le1POCs6bo4UuzU A+XdNit6Hau/JKS+Sw2/lpMcMz+Aev4gdFo2FukPuJSLJMR7KVNyiCVuIHIVI1oC v4yj5/QfUgZzWojweI9IVvt4BCuiSh3ke26cxO+xYSWTIlSbBDpAYRe3AVSp5xGq aPhaviqlgDLzxVuXTmGCyrxhpybgxGOQGmo6NulJ8wGaQ1GLllptB6hKnKrLBTrp jIwKUVBcl/xIeP4sd8vIvTNTyL56/XJYnouZYF+IXkX/8BY9L4OJycjPNgvZ0+IK LsTVXb2gdMghEGUFR2XNwoQljpyPSUFFcqoteOCaVhHaeD0CEAGBVSQNa7m3MtkO 0q6pu/XfQAziVd6/dllDGueWTjzqvNChTipSe9dSgolZgKrvc2t4bw48rB+oORPe f/cBIWjpyZlwpggb8aSC4KAIkTG8ugz4EIOV6t3a7IAx6K71zwQ= =Z4UE -----END PGP SIGNATURE----- Merge tag 'linux_kselftest-next-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest updates from Shuah Khan: - Fix watchdog test to exit when device doesn't support keep-alive - Fix missing header build complaints during out of tree build - A few minor fixes to git ignore - MAINTAINERS file change to update dma_map_benchmark * tag 'linux_kselftest-next-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: MAINTAINERS: add myself and Barry to dma_map_benchmark maintainers selftests/kexec: Ignore selftest binary selftests: always install UAPI headers to the correct directory selftests/kselftest_harness: Add harness-selftest.expected to TEST_FILES selftests: watchdog: skip ping loop if WDIOF_KEEPALIVEPING not supported |
||
|
Linus Torvalds
|
30bbcb4470 |
linux_kselftest-kunit-6.18-rc1
- A seven patch series adds a new parameterized test features
KUnit parameterized tests currently support two primary methods for
getting parameters:
1. Defining custom logic within a generate_params() function.
2. Using the KUNIT_ARRAY_PARAM() and KUNIT_ARRAY_PARAM_DESC()
macros with a pre-defined static array and passing
the created *_gen_params() to KUNIT_CASE_PARAM().
These methods present limitations when dealing with dynamically
generated parameter arrays, or in scenarios where populating parameters
sequentially via generate_params() is inefficient or overly complex.
These limitations are fixed with a parameterized test method.
- Fixes issues in kunit build artifacts cleanup,
- Fixes parsing skipped test problem in kselftest framework,
- Enables PCI on UML without triggering WARN()
- a few other fixes and adds support for new configs such as MIPS
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Merge tag 'linux_kselftest-kunit-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kunit updates from Shuah Khan:
- New parameterized test features
KUnit parameterized tests supported two primary methods for getting
parameters:
- Defining custom logic within a generate_params() function.
- Using the KUNIT_ARRAY_PARAM() and KUNIT_ARRAY_PARAM_DESC() macros
with a pre-defined static array and passing the created
*_gen_params() to KUNIT_CASE_PARAM().
These methods present limitations when dealing with dynamically
generated parameter arrays, or in scenarios where populating
parameters sequentially via generate_params() is inefficient or
overly complex.
These limitations are fixed with a parameterized test method
- Fix issues in kunit build artifacts cleanup
- Fix parsing skipped test problem in kselftest framework
- Enable PCI on UML without triggering WARN()
- a few other fixes and adds support for new configs such as MIPS
* tag 'linux_kselftest-kunit-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: Extend kconfig help text for KUNIT_UML_PCI
rust: kunit: allow `cfg` on `test`s
kunit: qemu_configs: Add MIPS configurations
kunit: Enable PCI on UML without triggering WARN()
Documentation: kunit: Document new parameterized test features
kunit: Add example parameterized test with direct dynamic parameter array setup
kunit: Add example parameterized test with shared resource management using the Resource API
kunit: Enable direct registration of parameter arrays to a KUnit test
kunit: Pass parameterized test context to generate_params()
kunit: Introduce param_init/exit for parameterized test context management
kunit: Add parent kunit for parameterized test context
kunit: tool: Accept --raw_output=full as an alias of 'all'
kunit: tool: Parse skipped tests from kselftest.h
kunit: Always descend into kunit directory during build
|
||
|
Linus Torvalds
|
f13ee7cc2d |
Thermal control updates for 6.18-rc1
- Add new thermal driver for the Renesas RZ/G3S SoC (Claudiu Beznea)
- Add new thermal driver for the Renesas RZ/G3E SoC (John Madieu)
- Add support for new platform power slider feature to the Intel
int340x driver (Srinivas Pandruvada).
- Add new Tegra114-specific SOCTHERM driver and document Tegra114
SOCTHERM Thermal Management System in DT bindings (Svyatoslav Ryhel)
- Add temperature sensor channel to thermal-generic-adc (Svyatoslav
Ryhel)
- Add support for per-SoC default trim values to the Renesas rcar_gen3
thermal driver, use it for adding R-Car V4H default trim values, fix
a comment typo in that driver and document Gen4 support in its
Kconfig entry (Marek Vasut)
- Fix mapping SoCs to generic Gen4 entry in the Renesas rcar_gen3
thermal driver (Wolfram Sang)
- Document the TSU unit in the r9a08g045-tsu and r9a09g047-tsu DT
bindings (Claudiu Beznea, John Madieu)
- Make LMH select QCOM_SCM and add missing IRQ includes to the
qcom/lmh thermal driver (Dmitry Baryshkov)
- Fix incorrect error message in the qcom/lmh thermal driver (Sumeet
Pawnikar)
- Add QCS615 compatible to tsens thermal DT bindings (Gaurav Kohli)
- Document the Glymur temperature sensor in qcom-tsens thermal DT
bindings (Manaf Meethalavalappu Pallikunhi)
- Make k3_j72xx_bandgap thermal driver register the thermal sensor
with hwmon (Michael Walle)
- Tighten GRF requirements in the rockchip thermal DT bindings,
silence a GRF warning in the rockchip thermal driver and unify
struct rockchip_tsadc_chip format in it (Sebastian Reichel)
- Update the Step-wise thermal governor to allow it to reduce the
cooling level earlier if thermal zone temperature is dropping
and clean it up (Rafael Wysocki)
- Clean up the thermal testing code (Rafael Wysocki)
- Assorted cleanups of thermal drivers (Jiapeng Chong, Salah Triki,
Osama Abdelkader)
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Merge tag 'thermal-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These are mostly thermal driver updates, including new thermal drivers
for Renesas RZ/G3S and Renesas RZ/G3E SoCs, a new power slider
platform feature support in the Intel int340x thermal driver, a new
Tegra114- specific SOCTHERM driver and more.
There is also a Step-wise thermal governor update allowing it to start
reducing cooling somewhat earlier if the temperature of the given
thermal zone is falling down and a thermal testing code cleanup.
Specifics:
- Add new thermal driver for the Renesas RZ/G3S SoC (Claudiu Beznea)
- Add new thermal driver for the Renesas RZ/G3E SoC (John Madieu)
- Add support for new platform power slider feature to the Intel
int340x driver (Srinivas Pandruvada).
- Add new Tegra114-specific SOCTHERM driver and document Tegra114
SOCTHERM Thermal Management System in DT bindings (Svyatoslav
Ryhel)
- Add temperature sensor channel to thermal-generic-adc (Svyatoslav
Ryhel)
- Add support for per-SoC default trim values to the Renesas
rcar_gen3 thermal driver, use it for adding R-Car V4H default trim
values, fix a comment typo in that driver and document Gen4 support
in its Kconfig entry (Marek Vasut)
- Fix mapping SoCs to generic Gen4 entry in the Renesas rcar_gen3
thermal driver (Wolfram Sang)
- Document the TSU unit in the r9a08g045-tsu and r9a09g047-tsu DT
bindings (Claudiu Beznea, John Madieu)
- Make LMH select QCOM_SCM and add missing IRQ includes to the
qcom/lmh thermal driver (Dmitry Baryshkov)
- Fix incorrect error message in the qcom/lmh thermal driver (Sumeet
Pawnikar)
- Add QCS615 compatible to tsens thermal DT bindings (Gaurav Kohli)
- Document the Glymur temperature sensor in qcom-tsens thermal DT
bindings (Manaf Meethalavalappu Pallikunhi)
- Make k3_j72xx_bandgap thermal driver register the thermal sensor
with hwmon (Michael Walle)
- Tighten GRF requirements in the rockchip thermal DT bindings,
silence a GRF warning in the rockchip thermal driver and unify
struct rockchip_tsadc_chip format in it (Sebastian Reichel)
- Update the Step-wise thermal governor to allow it to reduce the
cooling level earlier if thermal zone temperature is dropping and
clean it up (Rafael Wysocki)
- Clean up the thermal testing code (Rafael Wysocki)
- Assorted cleanups of thermal drivers (Jiapeng Chong, Salah Triki,
Osama Abdelkader)"
* tag 'thermal-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (37 commits)
thermal/drivers/renesas/rzg3e: Fix add thermal driver for the Renesas RZ/G3E SoC
dt-bindings: thermal: qcom-tsens: Document the Glymur temperature Sensor
thermal/drivers/renesas/rzg3e: Add thermal driver for the Renesas RZ/G3E SoC
dt-bindings: thermal: r9a09g047-tsu: Document the TSU unit
thermal/drivers/thermal-generic-adc: Add temperature sensor channel
dt-bindings: thermal: rockchip: Tighten grf requirements
thermal/drivers/rockchip: Shut up GRF warning
thermal/drivers/rockchip: Unify struct rockchip_tsadc_chip format
thermal/drivers/renesas/rzg3s: Add thermal driver for the Renesas RZ/G3S SoC
dt-bindings: thermal: r9a08g045-tsu: Document the TSU unit
thermal/drivers/k3_j72xx_bandgap: Register sensors with hwmon
thermal/drivers/rcar_gen3: Fix mapping SoCs to generic Gen4 entry
thermal/drivers/tegra: Add Tegra114 specific SOCTHERM driver
dt-bindings: thermal: add Tegra114 soctherm header
thermal/drivers/tegra/soctherm-fuse: Prepare calibration for Tegra114 support
dt-bindings: thermal: Document Tegra114 SOCTHERM Thermal Management System
thermal/drivers/rcar_gen3: Document Gen4 support in Kconfig entry
thermal/drivers/rcar_gen3: Fix comment typo
drivers/thermal/qcom/lmh: Fix incorrect error message
thermal/drivers/qcom/lmh: Add missing IRQ includes
...
|
||
|
Linus Torvalds
|
679a16399a |
ACPI updates for 6.18-rc1
- Add SoundWire File Table (SWFT) signature to ACPICA (Maciej Strozek)
- Rearrange local variable definition involving #ifdef in ACPICA to
avoid using uninitialized variables (Zhe Qiao)
- Allow ACPICA to skip Global Lock initialization (Huacai Chen)
- Apply ACPI_NONSTRING in more places in ACPICA and fix two regressions
related to incorrect ACPI_NONSTRING usage (Ahmed Salem)
- Fix printing CDAT table header when dissasebling CDAT AML (Ahmed
Salem)
- Use acpi_ds_clear_operands() in acpi_ds_call_control_method() in
ACPICA (Hans de Goede)
- Update dsmethod.c in ACPICA to address unused variable warning (Saket
Dumbre)
- Print error messages in ACPICA for too few or too many control method
arguments (Saket Dumbre)
- Update ACPICA version to 20250807 (Saket Dumbre)
- Fix largest possible resource descriptor index in ACPICA (Dmitry
Antipov)
- Add Back-Invalidate restriction to CXL Window for CEDT in ACPICA
(Davidlohr Bueso).
- Add the package type to acceptable Arg3 types for _DSM in ACPICA
because ACPI_TYPE_ANY does not cover it (Saket Dumbre)
- Fix return values in ap_is_valid_checksum() in the acpidump utility
in ACPICA (Kaushlendra Kumar)
- Add Intel CVS ACPI HIDs to acpi_ignore_dep_ids[] so it is not
regarded as real dependency (Hans de Goede)
- Use ACPI_FREE() for freeing an ACPI object in description_show() in
the ACPI sysfs-related code (Kaushlendra Kumar)
- Fix memory leak in the ACPI processor idle driver registration error
code path and optimize ACPI idle driver registration (Huisong Li,
Rafael Wysocki)
- Add module import namespace to the ACPI processor idle driver (Rafael
Wysocki)
- Eliminate static variable flat_state_cnt from the ACPI processor idle
driver (Rafael Wysocki)
- Release cpufreq policy references using __free() in the ACPI
processor thremal driver (Zihuan Zhang)
- Remove unused empty stubs of some functions and rearrange function
declarations in a header file in the ACPI processor driver (Huisong
Li)
- Redefine two functions as void in the ACPI processor driver (Rafael
Wysocki)
- Stop exposing global variable acpi_idle_driver in the ACPI processor
driver (Huisong Li)
- Fix ACPI buffer properties extraction for data-only subnodes
represented as _DSD-equivalent packages (Rafael Wysocki)
- Fix handling of ACPI data-only subnodes represented as _DSD-equivalent
packages in the case when they are embedded in larger _DSD-equivalent
packages and clean up acpi_nondev_subnode_extract() (Rafael Wysocki)
- Skip ACPI IRQ override on ASUS Vivobook Pro N6506CU (Sam van Kampen)
- Add power resource init function and use it for introducing an HP
EliteBook 855 G7 WWAN modem power resource quirk (Maciej Szmigiero)
- Add support for DBG2 RISC-V SBI port subtype and Precise Baud Rate
field to the ACPI SPCR table parser (Chen Pei)
- Eliminate a dummy local variable from the ACPI thermal driver (Rafael
Wysocki)
- Fold two simple functions into their only caller in the ACPI fan
driver (Rafael Wysocki)
- Force native backlight on Lenovo 82K8 in the ACPI backlight (video)
driver (Mario Limonciello)
- Add missing sysfs_remove_group() for ACPI_TAD_RT (Daniel Tang)
- Skip PRM handlers with NULL handler_address or NULL VA in the ACPI
PRM driver (Shang song)
- Remove redundant assignments in erst_dbg_{ioctl|write}() in the ACPI
APEI driver (Thorsten Blum)
- Allow the ACPI APEI EINJ to handle more types of addresses than just
MMIO (Jiaqi Yan)
- Use str_low_high() helper in two places in the ACPI code (Chelsy
Ratnawat)
- Use str_plural() to simplify the PNP code (Xichao Zhao)
- Fix signedness issues in read/write helpers in the ACPI AML debugger
interface (Amir Mohammad)
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Merge tag 'acpi-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These include an ACPICA update (upstream revision 20250807 with a few
fixes on top), fixes and cleanups of the ACPI processor driver, fixes
and cleanups of the ACPI properties management code, one more ACPI IRQ
resource management quirk, one more ACPI backlight quirk, an ACPI
device enumeration quirk related to _DEP, a power resource quirk
related to WWAN modem for HP EliteBook 855 G7, ACPI SPCR table parser
extensions, an ACPI APEI EINJ driver update allowing it to handle more
address types, and several assorted cleanups of ACPI drivers and PNP
code.
Specifics:
- Add SoundWire File Table (SWFT) signature to ACPICA (Maciej
Strozek)
- Rearrange local variable definition involving #ifdef in ACPICA to
avoid using uninitialized variables (Zhe Qiao)
- Allow ACPICA to skip Global Lock initialization (Huacai Chen)
- Apply ACPI_NONSTRING in more places in ACPICA and fix two
regressions related to incorrect ACPI_NONSTRING usage (Ahmed Salem)
- Fix printing CDAT table header when dissasebling CDAT AML (Ahmed
Salem)
- Use acpi_ds_clear_operands() in acpi_ds_call_control_method() in
ACPICA (Hans de Goede)
- Update dsmethod.c in ACPICA to address unused variable warning
(Saket Dumbre)
- Print error messages in ACPICA for too few or too many control
method arguments (Saket Dumbre)
- Update ACPICA version to 20250807 (Saket Dumbre)
- Fix largest possible resource descriptor index in ACPICA (Dmitry
Antipov)
- Add Back-Invalidate restriction to CXL Window for CEDT in ACPICA
(Davidlohr Bueso)
- Add the package type to acceptable Arg3 types for _DSM in ACPICA
because ACPI_TYPE_ANY does not cover it (Saket Dumbre)
- Fix return values in ap_is_valid_checksum() in the acpidump utility
in ACPICA (Kaushlendra Kumar)
- Add Intel CVS ACPI HIDs to acpi_ignore_dep_ids[] so it is not
regarded as real dependency (Hans de Goede)
- Use ACPI_FREE() for freeing an ACPI object in description_show() in
the ACPI sysfs-related code (Kaushlendra Kumar)
- Fix memory leak in the ACPI processor idle driver registration
error code path and optimize ACPI idle driver registration (Huisong
Li, Rafael Wysocki)
- Add module import namespace to the ACPI processor idle driver
(Rafael Wysocki)
- Eliminate static variable flat_state_cnt from the ACPI processor
idle driver (Rafael Wysocki)
- Release cpufreq policy references using __free() in the ACPI
processor thremal driver (Zihuan Zhang)
- Remove unused empty stubs of some functions and rearrange function
declarations in a header file in the ACPI processor driver (Huisong
Li)
- Redefine two functions as void in the ACPI processor driver (Rafael
Wysocki)
- Stop exposing global variable acpi_idle_driver in the ACPI
processor driver (Huisong Li)
- Fix ACPI buffer properties extraction for data-only subnodes
represented as _DSD-equivalent packages (Rafael Wysocki)
- Fix handling of ACPI data-only subnodes represented as
_DSD-equivalent packages in the case when they are embedded in
larger _DSD-equivalent packages and clean up
acpi_nondev_subnode_extract() (Rafael Wysocki)
- Skip ACPI IRQ override on ASUS Vivobook Pro N6506CU (Sam van
Kampen)
- Add power resource init function and use it for introducing an HP
EliteBook 855 G7 WWAN modem power resource quirk (Maciej Szmigiero)
- Add support for DBG2 RISC-V SBI port subtype and Precise Baud Rate
field to the ACPI SPCR table parser (Chen Pei)
- Eliminate a dummy local variable from the ACPI thermal driver
(Rafael Wysocki)
- Fold two simple functions into their only caller in the ACPI fan
driver (Rafael Wysocki)
- Force native backlight on Lenovo 82K8 in the ACPI backlight (video)
driver (Mario Limonciello)
- Add missing sysfs_remove_group() for ACPI_TAD_RT (Daniel Tang)
- Skip PRM handlers with NULL handler_address or NULL VA in the ACPI
PRM driver (Shang song)
- Remove redundant assignments in erst_dbg_{ioctl|write}() in the
ACPI APEI driver (Thorsten Blum)
- Allow the ACPI APEI EINJ to handle more types of addresses than
just MMIO (Jiaqi Yan)
- Use str_low_high() helper in two places in the ACPI code (Chelsy
Ratnawat)
- Use str_plural() to simplify the PNP code (Xichao Zhao)
- Fix signedness issues in read/write helpers in the ACPI AML
debugger interface (Amir Mohammad)"
* tag 'acpi-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (50 commits)
ACPI: debug: fix signedness issues in read/write helpers
ACPI: processor: Do not expose global variable acpi_idle_driver
ACPI: SPCR: Support Precise Baud Rate field
ACPI: processor: idle: Redefine two functions as void
ACPI: processor: Update cpuidle driver check in __acpi_processor_start()
ACPI: processor: idle: Rearrange declarations in header file
ACPI: processor: Remove unused empty stubs of some functions
ACPI: property: Adjust failure handling in acpi_nondev_subnode_extract()
ACPI: property: Do not pass NULL handles to acpi_attach_data()
ACPI: property: Add code comments explaining what is going on
ACPI: property: Disregard references in data-only subnode lists
ACPI: property: Fix buffer properties extraction for subnodes
ACPI: SPCR: Add support for DBG2 RISC-V SBI port subtype
ACPI: APEI: EINJ: Allow more types of addresses except MMIO
ACPI: APEI: Remove redundant assignments in erst_dbg_{ioctl|write}()
ACPICA: acpidump: fix return values in ap_is_valid_checksum()
ACPICA: ACPI_TYPE_ANY does not include the package type
ACPICA: CEDT: Add Back-Invalidate restriction to CXL Window
ACPICA: Fix largest possible resource descriptor index
ACPICA: Update version to 20250807
...
|
||
|
Linus Torvalds
|
991053178e |
Power management updates for 6.18-rc1
- Rearrange variable declarations involving __free() in the cpufreq
core and intel_pstate driver to follow common coding style (Rafael
Wysocki)
- Fix object lifecycle issue in update_qos_request(), rearrange
freq QoS updates using __free(), and adjust frequency percentage
computations in the intel_pstate driver (Rafael Wysocki)
- Update intel_pstate to allow it to enable HWP without EPP if the
new DEC (Dynamic Efficiency Control) HW feature is enabled (Rafael
Wysocki)
- Use on_each_cpu_mask() in drv_write() in the ACPI cpufreq driver
to simplify the code (Rafael Wysocki)
- Use likely() optimization in intel_pstate_sample() (Yaxiong Tian)
- Remove dead EPB-related code from intel_pstate (Srinivas Pandruvada)
- Use scope-based cleanup for cpufreq policy references in multiple
cpufreq drivers (Zihuan Zhang)
- Avoid calling get_governor() for the first policy in the cpufreq core
to simplify the initial policy path (Zihuan Zhang)
- Clean up the cpufreq core in multiple places (Zihuan Zhang)
- Use int type to store negative error codes in the cpufreq core and
update the speedstep-lib to use int for error codes (Qianfeng Rong)
- Update the efficient idle check for Intel extended Families in the
ondemand cpufreq governor (Sohil Mehta)
- Replace sscanf() with kstrtouint() in the conservative cpufreq
governor (Kaushlendra Kumar)
- Rename CpumaskVar::as[_mut]_ref to from_raw[_mut] in the cpumask
Rust code and mark CpumaskVar as transparent (Alice Ryhl, Baptiste
Lepers)
- Update ARef and AlwaysRefCounted imports from sync::aref in the OPP
Rust code (Shankari Anand)
- Add support for AN7583 SoC to the airoha cpufreq driver (Christian
Marangi)
- Enable cpufreq for ipq5424 in the qcom-nvmem cpufreq driver (Md Sadre
Alam)
- Add support for MT8196 to the mediatek-hw cpufreq driver, refactor
that driver and add mediatek,mt8196-cpufreq-hw DT binding (Nicolas
Frattaroli)
- Avoid redundant conditions in the mediatek cpufreq driver (Liao
Yuanhong)
- Add support for AM62D2 to the ti cpufreq driver and blocklist
ti,am62d2 SoC in dt-platdev (Paresh Bhagat)
- Support more speed grades on AM62Px SoC in the ti cpufreq driver,
allow all silicon revisions to support OPPs in it, and fix supported
hardware for 1GHz OPP (Judith Mendez)
- Add QCS615 compatible to DT bindings for cpufreq-qcom-hw (Taniya Das)
- Minor assorted updates of the scmi, longhaul, CPPC, and armada-37xx
cpufreq drivers (Akhilesh Patil, BowenYu, Dennis Beier, and Florian
Fainelli)
- Remove outdated cpufreq-dt.txt (Frank Li)
- Fix python gnuplot package names in the amd_pstate_tracer utility
(Kuan-Wei Chiu)
- Saravana Kannan will maintain the virtual-cpufreq driver (Saravana
Kannan)
- Prevent CPU capacity updates after registering a perf domain from
failing on a first CPU that is not present (Christian Loehle)
- Add support for the cases in which frequency alone is not sufficient
to uniquely identify an OPP (Krishna Chaitanya Chundru)
- Use to_result() for OPP error handling in Rust (Onur Özkan)
- Add support for LPDDR5 on Rockhip RK3588 SoC to rockchip-dfi devfreq
driver (Nicolas Frattaroli)
- Fix an issue where DDR cycle counts on RK3588/RK3528 with LPDDR4(X)
are reported as half by adding a cycle multiplier to the DFI driver
in rockchip-dfi devfreq-event driver (Nicolas Frattaroli)
- Fix missing error pointer dereference check of regulator instance in
the mtk-cci devfreq driver probe and remove a redundant condition from
an if () statement in that driver (Dan Carpenter, Liao Yuanhong)
- Fail cpuidle device registration if there is one already to avoid
sysfs-related issues (Rafael Wysocki)
- Use sysfs_emit()/sysfs_emit_at() instead of sprintf()/scnprintf() in
cpuidle (Vivek Yadav)
- Fix device and OF node leaks at probe in the qcom-spm cpuidle driver
and drop unnecessary initialisations from it (Johan Hovold)
- Remove unnecessary address-of operators from the intel_idle cpuidle
driver (Kaushlendra Kumar)
- Rearrange main loop in menu_select() to make the code in that funtion
easier to follow (Rafael Wysocki)
- Convert values in microseconds to ktime using us_to_ktime() where
applicable in the intel_idle power capping driver (Xichao Zhao)
- Annotate loops walking device links in the power management core
code as _srcu and add macros for walking device links to reduce the
likelihood of coding mistakes related to them (Rafael Wysocki)
- Document time units for *_time functions in the runtime PM API (Brian
Norris)
- Clear power.must_resume in noirq suspend error path to avoid resuming
a dependant device under a suspended parent or supplier (Rafael
Wysocki)
- Fix GFP mask handling during hybrid suspend and make the amdgpu
driver handle hybrid suspend correctly (Mario Limonciello, Rafael
Wysocki)
- Fix GFP mask handling after aborted hibernation in platform mode and
combine exit paths in power_down() to avoid code duplication (Rafael
Wysocki)
- Use vmalloc_array() and vcalloc() in the hibernation core to avoid
open-coded size computations (Qianfeng Rong)
- Fix typo in hibernation core code comment (Li Jun)
- Call pm_wakeup_clear() in the same place where other functions that do
bookkeeping prior to suspend_prepare() are called (Samuel Wu)
- Fix and clean up the x86_energy_perf_policy utility and update its
documentation (Len Brown, Kaushlendra Kumar)
- Fix incorrect sorting of PMT telemetry in turbostat (Kaushlendra
Kumar)
- Fix incorrect size in cpuidle_state_disable() and the error return
value of cpupower_write_sysfs() in cpupower (Kaushlendra Kumar)
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Merge tag 'pm-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"The majority of these are cpufreq changes, which has been a recurring
pattern for a few recent cycles.
Those changes include new hardware support (AN7583 SoC support in the
airoha cpufreq driver, ipq5424 support in the qcom-nvmem cpufreq
driver, MT8196 support in the mediatek cpufreq driver, AM62D2 support
in the ti cpufreq driver), DT bindings and Rust code updates, cleanups
of the core and governors, and multiple driver fixes and cleanups.
Beyond that, there are hibernation fixes (some remaining 6.16 cycle
fallout and an issue related to hybrid suspend in the amdgpu driver),
cleanups of the PM core code, runtime PM documentation update, cpuidle
and power capping cleanups, and tooling updates.
Specifics:
- Rearrange variable declarations involving __free() in the cpufreq
core and intel_pstate driver to follow common coding style (Rafael
Wysocki)
- Fix object lifecycle issue in update_qos_request(), rearrange freq
QoS updates using __free(), and adjust frequency percentage
computations in the intel_pstate driver (Rafael Wysocki)
- Update intel_pstate to allow it to enable HWP without EPP if the
new DEC (Dynamic Efficiency Control) HW feature is enabled (Rafael
Wysocki)
- Use on_each_cpu_mask() in drv_write() in the ACPI cpufreq driver to
simplify the code (Rafael Wysocki)
- Use likely() optimization in intel_pstate_sample() (Yaxiong Tian)
- Remove dead EPB-related code from intel_pstate (Srinivas
Pandruvada)
- Use scope-based cleanup for cpufreq policy references in multiple
cpufreq drivers (Zihuan Zhang)
- Avoid calling get_governor() for the first policy in the cpufreq
core to simplify the initial policy path (Zihuan Zhang)
- Clean up the cpufreq core in multiple places (Zihuan Zhang)
- Use int type to store negative error codes in the cpufreq core and
update the speedstep-lib to use int for error codes (Qianfeng Rong)
- Update the efficient idle check for Intel extended Families in the
ondemand cpufreq governor (Sohil Mehta)
- Replace sscanf() with kstrtouint() in the conservative cpufreq
governor (Kaushlendra Kumar)
- Rename CpumaskVar::as[_mut]_ref to from_raw[_mut] in the cpumask
Rust code and mark CpumaskVar as transparent (Alice Ryhl, Baptiste
Lepers)
- Update ARef and AlwaysRefCounted imports from sync::aref in the OPP
Rust code (Shankari Anand)
- Add support for AN7583 SoC to the airoha cpufreq driver (Christian
Marangi)
- Enable cpufreq for ipq5424 in the qcom-nvmem cpufreq driver (Md
Sadre Alam)
- Add support for MT8196 to the mediatek-hw cpufreq driver, refactor
that driver and add mediatek,mt8196-cpufreq-hw DT binding (Nicolas
Frattaroli)
- Avoid redundant conditions in the mediatek cpufreq driver (Liao
Yuanhong)
- Add support for AM62D2 to the ti cpufreq driver and blocklist
ti,am62d2 SoC in dt-platdev (Paresh Bhagat)
- Support more speed grades on AM62Px SoC in the ti cpufreq driver,
allow all silicon revisions to support OPPs in it, and fix
supported hardware for 1GHz OPP (Judith Mendez)
- Add QCS615 compatible to DT bindings for cpufreq-qcom-hw (Taniya
Das)
- Minor assorted updates of the scmi, longhaul, CPPC, and armada-37xx
cpufreq drivers (Akhilesh Patil, BowenYu, Dennis Beier, and Florian
Fainelli)
- Remove outdated cpufreq-dt.txt (Frank Li)
- Fix python gnuplot package names in the amd_pstate_tracer utility
(Kuan-Wei Chiu)
- Saravana Kannan will maintain the virtual-cpufreq driver (Saravana
Kannan)
- Prevent CPU capacity updates after registering a perf domain from
failing on a first CPU that is not present (Christian Loehle)
- Add support for the cases in which frequency alone is not
sufficient to uniquely identify an OPP (Krishna Chaitanya Chundru)
- Use to_result() for OPP error handling in Rust (Onur Özkan)
- Add support for LPDDR5 on Rockhip RK3588 SoC to rockchip-dfi
devfreq driver (Nicolas Frattaroli)
- Fix an issue where DDR cycle counts on RK3588/RK3528 with LPDDR4(X)
are reported as half by adding a cycle multiplier to the DFI driver
in rockchip-dfi devfreq-event driver (Nicolas Frattaroli)
- Fix missing error pointer dereference check of regulator instance
in the mtk-cci devfreq driver probe and remove a redundant
condition from an if () statement in that driver (Dan Carpenter,
Liao Yuanhong)
- Fail cpuidle device registration if there is one already to avoid
sysfs-related issues (Rafael Wysocki)
- Use sysfs_emit()/sysfs_emit_at() instead of sprintf()/scnprintf()
in cpuidle (Vivek Yadav)
- Fix device and OF node leaks at probe in the qcom-spm cpuidle
driver and drop unnecessary initialisations from it (Johan Hovold)
- Remove unnecessary address-of operators from the intel_idle cpuidle
driver (Kaushlendra Kumar)
- Rearrange main loop in menu_select() to make the code in that
funtion easier to follow (Rafael Wysocki)
- Convert values in microseconds to ktime using us_to_ktime() where
applicable in the intel_idle power capping driver (Xichao Zhao)
- Annotate loops walking device links in the power management core
code as _srcu and add macros for walking device links to reduce the
likelihood of coding mistakes related to them (Rafael Wysocki)
- Document time units for *_time functions in the runtime PM API
(Brian Norris)
- Clear power.must_resume in noirq suspend error path to avoid
resuming a dependant device under a suspended parent or supplier
(Rafael Wysocki)
- Fix GFP mask handling during hybrid suspend and make the amdgpu
driver handle hybrid suspend correctly (Mario Limonciello, Rafael
Wysocki)
- Fix GFP mask handling after aborted hibernation in platform mode
and combine exit paths in power_down() to avoid code duplication
(Rafael Wysocki)
- Use vmalloc_array() and vcalloc() in the hibernation core to avoid
open-coded size computations (Qianfeng Rong)
- Fix typo in hibernation core code comment (Li Jun)
- Call pm_wakeup_clear() in the same place where other functions that
do bookkeeping prior to suspend_prepare() are called (Samuel Wu)
- Fix and clean up the x86_energy_perf_policy utility and update its
documentation (Len Brown, Kaushlendra Kumar)
- Fix incorrect sorting of PMT telemetry in turbostat (Kaushlendra
Kumar)
- Fix incorrect size in cpuidle_state_disable() and the error return
value of cpupower_write_sysfs() in cpupower (Kaushlendra Kumar)"
* tag 'pm-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (86 commits)
PM: hibernate: Combine return paths in power_down()
PM: hibernate: Restrict GFP mask in power_down()
PM: hibernate: Fix pm_hibernation_mode_is_suspend() build breakage
PM: runtime: Documentation: ABI: Document time units for *_time
tools/power x86_energy_perf_policy.8: Emphasize preference for SW interfaces
tools/power x86_energy_perf_policy: Add make snapshot target
tools/power x86_energy_perf_policy: Prefer driver HWP limits
tools/power x86_energy_perf_policy: EPB access is only via sysfs
tools/power x86_energy_perf_policy: Prepare for MSR/sysfs refactoring
tools/power x86_energy_perf_policy: Enhance HWP enable
tools/power x86_energy_perf_policy: Enhance HWP enabled check
tools/power x86_energy_perf_policy: Fix incorrect fopen mode usage
tools/power turbostat: Fix incorrect sorting of PMT telemetry
drm/amd: Fix hybrid sleep
PM: hibernate: Add pm_hibernation_mode_is_suspend()
PM: hibernate: Fix hybrid-sleep
tools/cpupower: Fix incorrect size in cpuidle_state_disable()
tools/power/x86/amd_pstate_tracer: Fix python gnuplot package names
cpufreq: Replace pointer subtraction with iteration macro
cpuidle: Fail cpuidle device registration if there is one already
...
|
||
|
Eric Biggers
|
f09f57c746 |
selftests/bpf: Add test for libbpf_sha256()
Test that libbpf_sha256() calculates SHA-256 digests correctly.
Tested with:
make -C tools/testing/selftests/bpf/
./tools/testing/selftests/bpf/test_progs -t sha256 -v
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
||
|
Andrii Nakryiko
|
4a1c9e544b |
libbpf: remove linux/unaligned.h dependency for libbpf_sha256()
linux/unaligned.h include dependency is causing issues for libbpf's
Github mirror due to {get,put}_unaligned_be32() usage.
So get rid of it by implementing custom variants of those macros that
will work both in kernel and Github mirror repos.
Also switch round_up() to roundup(), as the former is not available in
Github mirror (and is just a subtly more specific variant of roundup()
anyways).
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20251001171326.3883055-6-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
|
||
|
Andrii Nakryiko
|
a7f36f81d0 |
libbpf: move libbpf_sha256() implementation into libbpf_utils.c
Move sha256 implementation out of already large and unwieldy libbpf.c into libbpf_utils.c where we'll keep reusable helpers. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20251001171326.3883055-5-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Eduard Zingerman <eddyz87@gmail.com> |
||
|
Andrii Nakryiko
|
c68b6fdc36 |
libbpf: move libbpf_errstr() into libbpf_utils.c
Get rid of str_err.{c,h} by moving implementation of libbpf_errstr()
into libbpf_utils.c and declarations into libbpf_internal.h.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20251001171326.3883055-4-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
|
||
|
Andrii Nakryiko
|
d05ab6181b |
libbpf: remove unused libbpf_strerror_r and STRERR_BUFSIZE
libbpf_strerror_r() is not exposed as public API and neither is it used inside libbpf itself. Remove it altogether. Same for STRERR_BUFSIZE, it's just an orphaned leftover constant which we missed to clean up some time earlier. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20251001171326.3883055-3-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Eduard Zingerman <eddyz87@gmail.com> |
||
|
Andrii Nakryiko
|
44d42bd808 |
libbpf: make libbpf_errno.c into more generic libbpf_utils.c
Libbpf is missing one convenient place to put common "utils"-like code that is generic and usable from multiple places. Use libbpf_errno.c as the base for more generic libbpf_utils.c. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20251001171326.3883055-2-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Eduard Zingerman <eddyz87@gmail.com> |
||
|
KaFai Wan
|
8709c16852 |
selftests/bpf: Add test for BPF_NEG alu on CONST_PTR_TO_MAP
Add a test case for BPF_NEG operation on CONST_PTR_TO_MAP. Tests if BPF_NEG operation on map_ptr is rejected in unprivileged mode and is a scalar value and do not trigger Oops in privileged mode. Signed-off-by: KaFai Wan <kafai.wan@linux.dev> Signed-off-by: Brahmajit Das <listout@listout.xyz> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20251001191739.2323644-3-listout@listout.xyz Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Jiri Olsa
|
0c342bfc99 |
selftests/bpf: Fix realloc size in bpf_get_addrs
We will segfault once we call realloc in bpf_get_addrs due to
wrong size argument.
Fixes:
|
||
|
Jiri Olsa
|
4b2b38ea20 |
selftests/bpf: Fix typo in subtest_basic_usdt after merge conflict
Use proper 'called' variable name.
Fixes:
|
||
|
Jiri Olsa
|
f83fcec784 |
selftests/bpf: Fix open-coded gettid syscall in uprobe syscall tests
Commit |
||
|
Ian Rogers
|
d18020cf1e |
perf test: Remove C python_use test
Removed in favor of the shell script version. Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
33706fb0aa |
perf test: Add an 'import perf' test shell script
The 'import perf' test needs to set up a path to the python module as well as to know the python command to invoke. These are hard coded at build time to be build a directory and the python used in the build, which is less than desirable. Avoid the hard coded values by reusing the existing shell script python setup and determine a potential built python module via the path of the perf executable. Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
James Clark
|
9f0fa21379 |
perf test: Extend branch stack sampling test for Arm64 BRBE
BRBE emits IRQ and ERET branches for branching and returning from trapped instructions. Add a test that loops on a trapped instruction (MRS - Read special register) for this. Extend the expected 'any_call' branches to include FAULT_DATA and FAULT_INST as these are emitted by BRBE. Reviewed-by: Ian Rogers <irogers@google.com> Co-developed-by: German Gomez <german.gomez@arm.com> Signed-off-by: German Gomez <german.gomez@arm.com> Signed-off-by: James Clark <james.clark@linaro.org> Cc: Adam Young <admiyo@os.amperecomputing.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rob Herring <robh@kernel.org> Cc: Will Deacon <will@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
James Clark
|
11e59335b0 |
perf test: Add syscall and address tests to brstack test
Test that SYSCALL type branches are emitted from the expected 'getppid' symbol. Test that when only 'k' is used, sources addresses are all in the kernel. Test that no kernel addresses leak by checking for them in the 'u' test. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: James Clark <james.clark@linaro.org> Cc: Adam Young <admiyo@os.amperecomputing.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rob Herring <robh@kernel.org> Cc: Will Deacon <will@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
James Clark
|
f15548b277 |
perf test: Refactor brstack test
check_branches() will be used by other tests in a later commit so make it a function. And the any_call filters are duplicated and will also be extended in a later commit, so move them to a variable. No functional changes intended. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: James Clark <james.clark@linaro.org> Cc: Adam Young <admiyo@os.amperecomputing.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rob Herring <robh@kernel.org> Cc: Will Deacon <will@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
b91917c0c6 |
perf bpf_counter: Fix handling of cpumap fixing hybrid
Don't open evsels on all CPUs, open them just on the CPUs they
support. This avoids opening say an e-core event on a p-core and
getting a failure - achieve this by getting rid of the "all_cpu_map".
In install_pe functions don't use the cpu_map_idx as a CPU number,
translate the cpu_map_idx, which is a dense index into the cpu_map
skipping holes at the beginning, to a proper CPU number.
Before:
```
$ perf stat --bpf-counters -a -e cycles,instructions -- sleep 1
Performance counter stats for 'system wide':
<not supported> cpu_atom/cycles/
566,270,672 cpu_core/cycles/
<not supported> cpu_atom/instructions/
572,792,836 cpu_core/instructions/ # 1.01 insn per cycle
1.001595384 seconds time elapsed
```
After:
```
$ perf stat --bpf-counters -a -e cycles,instructions -- sleep 1
Performance counter stats for 'system wide':
443,299,201 cpu_atom/cycles/
1,233,919,737 cpu_core/cycles/
213,634,112 cpu_atom/instructions/ # 0.48 insn per cycle
2,758,965,527 cpu_core/instructions/ # 2.24 insn per cycle
1.001699485 seconds time elapsed
```
Fixes:
|
||
|
Ian Rogers
|
8c519a825b |
perf bpf_counter: Move header declarations into C code
Reduce the API surface that is in bpf_counter.h, this helps compiler analysis like unused static function, makes it easier to set a breakpoint and just makes it easier to see the code is self contained. When code is shared between BPF C code, put it inside HAVE_BPF_SKEL. Move transitively found #includes into appropriate C files. No functional change. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Gabriele Monaco <gmonaco@redhat.com> Cc: Howard Chu <howardchu95@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <songliubraving@fb.com> Cc: Tengda Wu <wutengda@huaweicloud.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Suchit Karunakaran
|
60c38a6d38 |
perf annotate: Use architecture-agnostic register limit
Remove the arch-specific guard around TYPE_STATE_MAX_REGS and define it as 32 for all architectures. The architecture that perf is built on may not match the architecture that produced the perf.data file, so relying on __powerpc__ or similar is fragile. Using 32 as a fixed upper bound is safe since it is greater than the previous maximum of 16. Add a comment to clarify that TYPE_STATE_MAX_REGS is an arch-independent maximum rather than a build-time choice. Suggested-by: Ian Rogers <irogers@google.com> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Suchit Karunakaran <suchitkarunakaran@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Athira Rajeev
|
a0dfb18f7d |
perf script: Enable to present DTL entries
The process_event() function in "builtin-script.c" invokes
perf_sample__fprintf_synth() for displaying PERF_TYPE_SYNTH
type events.
if (attr->type == PERF_TYPE_SYNTH && PRINT_FIELD(SYNTH))
perf_sample__fprintf_synth(sample, evsel, fp);
perf_sample__fprintf_synth() process the sample depending on the value
in evsel->core.attr.config. Introduce perf_sample__fprintf_synth_vpadtl()
and invoke this for PERF_SYNTH_POWERPC_VPA_DTL
Sample output:
./perf record -a -e sched:*,vpa_dtl/dtl_all/ -c 1000000000 sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.300 MB perf.data ]
./perf script
perf 13322 [002] 233.835807: sched:sched_switch: perf:13322 [120] R ==> migration/2:27 [0]
migration/2 27 [002] 233.835811: sched:sched_migrate_task: comm=perf pid=13322 prio=120 orig_cpu=2 dest_cpu=3
migration/2 27 [002] 233.835818: sched:sched_stat_runtime: comm=migration/2 pid=27 runtime=9214 [ns]
migration/2 27 [002] 233.835819: sched:sched_switch: migration/2:27 [0] S ==> swapper/2:0 [120]
swapper 0 [002] 233.835822: vpa-dtl: timebase: 338954486062657 dispatch_reason:decrementer_interrupt, preempt_reason:H_CEDE, enqueue_to_dispatch_time:435, ready_to_enqueue_time:0, waiting_to_ready_time:34775058, processor_id: 202 c0000000000f8094 plpar_hcall_norets_notrace+0x18 ([kernel.kallsyms])
swapper 0 [001] 233.835886: vpa-dtl: timebase: 338954486095398 dispatch_reason:priv_doorbell, preempt_reason:H_CEDE, enqueue_to_dispatch_time:542, ready_to_enqueue_time:0, waiting_to_ready_time:1245360, processor_id: 201 c0000000000f8094 plpar_hcall_norets_notrace+0x18 ([kernel.kallsyms])
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Athira Rajeev <atrajeev@linux.ibm.com>
Tested-by: Tejas Manhas <tejas05@linux.ibm.com>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Cc: Aboorva Devarajan <aboorvad@linux.ibm.com>
Cc: Aditya Bodkhe <Aditya.Bodkhe1@ibm.com>
Cc: Hari Bathini <hbathini@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Athira Rajeev
|
8644834a48 |
perf powerpc: Process the DTL entries in queue and deliver samples
Create samples from DTL entries for displaying in 'perf report'
and 'perf script'.
When the different PERF_RECORD_XX records are processed from perf
session, powerpc_vpadtl_process_event() will be invoked.
For each of the PERF_RECORD_XX record, compare the timestamp of perf
record with timestamp of top element in the auxtrace heap.
Process the auxtrace queue if the timestamp of element from heap is
lower than timestamp from entry in perf record.
Sometimes it could happen that one buffer is only partially processed.
if the timestamp of occurrence of another event is more than currently
processed element in the queue, it will move on to next perf record.
So keep track of position of buffer to continue processing next time.
Update the timestamp of the auxtrace heap with the timestamp of last
processed entry from the auxtrace buffer.
Generate perf sample for each entry in the dispatch trace log.
Fill in the sample details:
- sample ip is picked from srr0 field of dtl_entry
- sample cpu is picked from processor_id of dtl_entry
- sample id is from sample_id of powerpc_vpadtl
- cpumode is set to PERF_RECORD_MISC_KERNEL
- Additionally save the details in raw_data of sample.
This is to print the relevant fields in perf_sample__fprintf_synth()
when called from builtin-script
The sample is processed by calling perf_session__deliver_synth_event()
so that it gets included in perf report.
Sample Output:
./perf record -a -e sched:*,vpa_dtl/dtl_all/ -c 1000000000 sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.300 MB perf.data ]
./perf report
# Samples: 321 of event 'vpa-dtl'
# Event count (approx.): 321
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................. ..............................
#
100.00% 100.00% swapper [kernel.kallsyms] [k] plpar_hcall_norets_notrace
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Athira Rajeev <atrajeev@linux.ibm.com>
Tested-by: Tejas Manhas <tejas05@linux.ibm.com>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Cc: Aboorva Devarajan <aboorvad@linux.ibm.com>
Cc: Aditya Bodkhe <Aditya.Bodkhe1@ibm.com>
Cc: Hari Bathini <hbathini@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Athira Rajeev
|
cd1c3b730a |
perf powerpc: Allocate and setup aux buffer queue to help co-relate with other events across CPU's
When the Dispatch Trace Log data is collected along with other events like sched tracepoint events, it needs to be correlated and present interleaved along with these events. Perf events can be collected parallely across the CPUs. Hence it needs to be ensured events/dtl entries are processed in timestamp order. An auxtrace_queue is created for each CPU. Data within each queue is in increasing order of timestamp. Each auxtrace queue has a array/list of auxtrace buffers. When processing the auxtrace buffer, the data is mmapp'ed. All auxtrace queues is maintained in auxtrace heap. Each queue has a queue number and a timestamp. The queues are sorted/added to head based on the time stamp. So always the lowest timestamp (entries to be processed first) is on top of the heap. The auxtrace queue needs to be allocated and heap needs to be populated in the sorted order of timestamp. The queue needs to be filled with data only once via powerpc_vpadtl__update_queues() function. powerpc_vpadtl__setup_queues() iterates through all the entries to allocate and setup the auxtrace queue. To add to auxtrace heap, it is required to fetch the timebase of first entry for each of the queue. The first entry in the queue for VPA DTL PMU has the boot timebase, frequency details which are needed to get timestamp which is required to correlate with other events. The very next entry is the actual trace data that provides timestamp for occurrence of DTL event. Formula used to get the timestamp from dtl entry is: ((timbase from DTL entry - boot time) / frequency) * 1000000000 powerpc_vpadtl_decode() adds the boot time and frequency as part of powerpc_vpadtl_queue structure so that it can be reused. Each of the dtl_entry is of 48 bytes size. Sometimes it could happen that one buffer is only partially processed (if the timestamp of occurrence of another event is more than currently processed element in queue, it will move on to next event). In order to keep track of position of buffer, additional fields is added to powerpc_vpadtl_queue structure. Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Athira Rajeev <atrajeev@linux.ibm.com> Tested-by: Tejas Manhas <tejas05@linux.ibm.com> Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com> Cc: Aboorva Devarajan <aboorvad@linux.ibm.com> Cc: Aditya Bodkhe <Aditya.Bodkhe1@ibm.com> Cc: Hari Bathini <hbathini@linux.vnet.ibm.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Athira Rajeev
|
71feffa9c0 |
perf powerpc: Add event name as vpa-dtl of PERF_TYPE_SYNTH type to present DTL samples
Dispatch Trace Log details are captured as-is in PERF_RECORD_AUXTRACE records. To present dtl entries as samples, create an event with name as "vpa-dtl" and type PERF_TYPE_SYNTH. Add perf_synth_id, "PERF_SYNTH_POWERPC_VPA_DTL" as config value for the event. Create a sample id to be a fixed offset from evsel id. To present the relevant fields from the "struct dtl_entry", prepare the entries as events of type PERF_TYPE_SYNTH. By defining as PERF_TYPE_SYNTH type, samples can be printed as part of perf_sample__fprintf_synth in builtin-script.c From powerpc_vpadtl_process_auxtrace_info(), invoke auxtrace_queues__process_index() function which will queue the auxtrace buffers by invoke auxtrace_queues__add_event(). Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Athira Rajeev <atrajeev@linux.ibm.com> Tested-by: Tejas Manhas <tejas05@linux.ibm.com> Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com> Cc: Aboorva Devarajan <aboorvad@linux.ibm.com> Cc: Aditya Bodkhe <Aditya.Bodkhe1@ibm.com> Cc: Hari Bathini <hbathini@linux.vnet.ibm.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Athira Rajeev
|
c4bbd4ec2e |
perf powerpc: Process auxtrace events and display in 'perf report -D'
Add VPA DTL PMU auxtrace process function for "perf report -D". The auxtrace event processing functions are defined in file "util/powerpc-vpadtl.c". Data structures used includes "struct powerpc_vpadtl_queue", "struct powerpc_vpadtl" to store the auxtrace buffers in queue. Different PERF_RECORD_XXX are generated during recording. PERF_RECORD_AUXTRACE_INFO is processed first since it is of type perf_user_event_type and perf session event delivers perf_session__process_user_event() first. Define function powerpc_vpadtl_process_auxtrace_info() to handle the processing of PERF_RECORD_AUXTRACE_INFO records. In this function, initialize the aux buffer queues using auxtrace_queues__init(). Setup the required infrastructure for aux data processing. The data is collected per CPU and auxtrace_queue is created for each CPU. Define powerpc_vpadtl_process_event() function to process PERF_RECORD_AUXTRACE records. In this, add the event to queue using auxtrace_queues__add_event() and process the buffer in powerpc_vpadtl_dump_event(). The first entry in the buffer with timebase as zero has boot timebase and frequency. Remaining data is of format for "struct powerpc_vpadtl_entry". Define the translation for dispatch_reasons and preempt_reasons, report this when dump trace is invoked via powerpc_vpadtl_dump() Sample output: ./perf record -a -e sched:*,vpa_dtl/dtl_all/ -c 1000000000 sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.300 MB perf.data ] ./perf report -D 0 0 0x39b10 [0x30]: PERF_RECORD_AUXTRACE size: 0x690 offset: 0 ref: 0 idx: 0 tid: -1 cpu: 0 . . ... VPA DTL PMU data: size 1680 bytes, entries is 35 . 00000000: boot_tb: 21349649546353231, tb_freq: 512000000 . 00000030: dispatch_reason:decrementer interrupt, preempt_reason:H_CEDE, enqueue_to_dispatch_time:7064, ready_to_enqueue_time:187, waiting_to_ready_time:6611773 . 00000060: dispatch_reason:priv doorbell, preempt_reason:H_CEDE, enqueue_to_dispatch_time:146, ready_to_enqueue_time:0, waiting_to_ready_time:15359437 . 00000090: dispatch_reason:decrementer interrupt, preempt_reason:H_CEDE, enqueue_to_dispatch_time:4868, ready_to_enqueue_time:232, waiting_to_ready_time:5100709 . 000000c0: dispatch_reason:priv doorbell, preempt_reason:H_CEDE, enqueue_to_dispatch_time:179, ready_to_enqueue_time:0, waiting_to_ready_time:30714243 . 000000f0: dispatch_reason:priv doorbell, preempt_reason:H_CEDE, enqueue_to_dispatch_time:197, ready_to_enqueue_time:0, waiting_to_ready_time:15350648 . 00000120: dispatch_reason:priv doorbell, preempt_reason:H_CEDE, enqueue_to_dispatch_time:213, ready_to_enqueue_time:0, waiting_to_ready_time:15353446 . 00000150: dispatch_reason:priv doorbell, preempt_reason:H_CEDE, enqueue_to_dispatch_time:212, ready_to_enqueue_time:0, waiting_to_ready_time:15355126 . 00000180: dispatch_reason:decrementer interrupt, preempt_reason:H_CEDE, enqueue_to_dispatch_time:6368, ready_to_enqueue_time:164, waiting_to_ready_time:5104665 Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Athira Rajeev <atrajeev@linux.ibm.com> Tested-by: Tejas Manhas <tejas05@linux.ibm.com> Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com> Cc: Aboorva Devarajan <aboorvad@linux.ibm.com> Cc: Aditya Bodkhe <Aditya.Bodkhe1@ibm.com> Cc: Hari Bathini <hbathini@linux.vnet.ibm.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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|
Athira Rajeev
|
1dbfaf94cf |
perf powerpc: Add basic CONFIG_AUXTRACE support for VPA pmu on powerpc
The powerpc PMU collecting Dispatch Trace Log (DTL) entries makes use of AUX support in perf infrastructure. The PMU driver has the functionality to collect trace entries in the aux buffer. On the tools side, this data is made available as PERF_RECORD_AUXTRACE records. This record is generated by "perf record" command. To enable the creation of PERF_RECORD_AUXTRACE, add functions to initialize auxtrace records ie "auxtrace_record__init()". Fill in fields for other callbacks like info_priv_size, info_fill, free, recording options etc. Define auxtrace_type as PERF_AUXTRACE_VPA_DTL. Add header file to define vpa dtl pmu specific details. Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Athira Rajeev <atrajeev@linux.ibm.com> Tested-by: Tejas Manhas <tejas05@linux.ibm.com> Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com> Cc: Aboorva Devarajan <aboorvad@linux.ibm.com> Cc: Aditya Bodkhe <Aditya.Bodkhe1@ibm.com> Cc: Hari Bathini <hbathini@linux.vnet.ibm.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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|
Ian Rogers
|
58a606149c |
perf sched: Avoid union type punning undefined behavior
A union is used to set the priv value in thread (a void*) to a boolean value through type punning. Undefined behavior sanitizer fails on this. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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|
Veronika Molnarova
|
241f21be7d |
perf test perftool_testsuite: Use absolute paths
Test cases from perftool_testsuite are affected by the current directory where the test are run. For this reason, the test driver has to change the directory to the base_dir for references to work correctly. Utilize absolute paths when sourcing and referencing other scripts so that the current working directory doesn't impact the test cases. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Jakub Brnak <jbrnak@redhat.com> Signed-off-by: Michael Petlan <mpetlan@redhat.com> Signed-off-by: Veronika Molnarova <vmolnaro@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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|
Markus Heidelberg
|
a93b9ccb03 |
perf tools: Fix duplicated words in documentation and comments
- "the the" - "in in" - "a a" Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Markus Heidelberg <m.heidelberg@cab.de> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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|
Paolo Abeni
|
f1455695d2 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.17-rc8). Conflicts: tools/testing/selftests/drivers/net/bonding/Makefile |
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Linus Torvalds
|
50c19e20ed |
nolibc changes for v6.18
Only contains small bugfixes and cleanups. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTg4lxklFHAidmUs57B+h1jyw5bOAUCaNmibgAKCRDB+h1jyw5b OP8VAQDzrMGp77iFvfAFRsFuGYXLpWgNd8aWzFVMmPz/Kts3yAD/X1RnJsak5l5g iiuZTPijrZeyQaO0uX4UV/XVHzxU2Ac= =IenX -----END PGP SIGNATURE----- Merge tag 'nolibc-20250928-for-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc Pull nolibc updates from Thomas Weißschuh: "Only small bugfixes and cleanups" * tag 'nolibc-20250928-for-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc: tools/nolibc: add stdbool.h to nolibc includes tools/nolibc: make time_t robust if __kernel_old_time_t is missing in host headers selftests/nolibc: remove outdated comment about construct order selftests/nolibc: fix EXPECT_NZ macro tools/nolibc: drop wait4() support kselftest/arm64: tpidr2: Switch to waitpid() over wait4() tools/nolibc: fold llseek fallback into lseek() tools/nolibc: remove __nolibc_enosys() fallback from fork functions tools/nolibc: remove __nolibc_enosys() fallback from dup2() tools/nolibc: remove __nolibc_enosys() fallback from *at() functions tools/nolibc: remove __nolibc_enosys() fallback from time64-related functions tools/nolibc: use tabs instead of spaces for indentation tools/nolibc: avoid error in dup2() if old fd equals new fd selftests/nolibc: always compile the kernel with GCC selftests/nolibc: don't pass CC to toplevel Makefile selftests/nolibc: deduplicate invocations of toplevel Makefile selftests/nolibc: be more specific about variables affecting nolibc-test tools/nolibc: fix error return value of clock_nanosleep() |
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Linus Torvalds
|
ae28ed4578 |
bpf-next-6.18
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|
Linus Torvalds
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4b81e2eb9e |
Updates for the VDSO subsystem:
- Further consolidation of the VDSO infrastructure and the common data
store.
- Simplification of the related Kconfig logic
- Improve the VDSO selftest suite
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Merge tag 'timers-vdso-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull VDSO updates from Thomas Gleixner:
- Further consolidation of the VDSO infrastructure and the common data
store
- Simplification of the related Kconfig logic
- Improve the VDSO selftest suite
* tag 'timers-vdso-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
selftests: vDSO: Drop vdso_test_clock_getres
selftests: vDSO: vdso_test_abi: Add tests for clock_gettime64()
selftests: vDSO: vdso_test_abi: Test CPUTIME clocks
selftests: vDSO: vdso_test_abi: Use explicit indices for name array
selftests: vDSO: vdso_test_abi: Drop clock availability tests
selftests: vDSO: vdso_test_abi: Use ksft_finished()
selftests: vDSO: vdso_test_abi: Correctly skip whole test with missing vDSO
selftests: vDSO: Fix -Wunitialized in powerpc VDSO_CALL() wrapper
vdso: Add struct __kernel_old_timeval forward declaration to gettime.h
vdso: Gate VDSO_GETRANDOM behind HAVE_GENERIC_VDSO
vdso: Drop Kconfig GENERIC_VDSO_TIME_NS
vdso: Drop Kconfig GENERIC_VDSO_DATA_STORE
vdso: Drop kconfig GENERIC_COMPAT_VDSO
vdso: Drop kconfig GENERIC_VDSO_32
riscv: vdso: Untangle Kconfig logic
time: Build generic update_vsyscall() only with generic time vDSO
vdso/gettimeofday: Remove !CONFIG_TIME_NS stubs
vdso: Move ENABLE_COMPAT_VDSO from core to arm64
ARM: VDSO: Remove cntvct_ok global variable
vdso/datastore: Gate time data behind CONFIG_GENERIC_GETTIMEOFDAY
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Linus Torvalds
|
c574fb2ed7 |
A set of updates for futexes and related selftests:
- Plug the ptrace_may_access() race against a concurrent exec() which
allows to pass the check before the target's process transition in
exec() by taking a read lock on signal->ext_update_lock.
- A large set of cleanups and enhancement to the futex selftests. The
bulk of changes is the conversion to the kselftest harness.
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Merge tag 'locking-futex-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull futex updates from Thomas Gleixner:
"A set of updates for futexes and related selftests:
- Plug the ptrace_may_access() race against a concurrent exec() which
allows to pass the check before the target's process transition in
exec() by taking a read lock on signal->ext_update_lock.
- A large set of cleanups and enhancement to the futex selftests. The
bulk of changes is the conversion to the kselftest harness"
* tag 'locking-futex-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
selftest/futex: Fix spelling mistake "boundarie" -> "boundary"
selftests/futex: Remove logging.h file
selftests/futex: Drop logging.h include from futex_numa
selftests/futex: Refactor futex_numa_mpol with kselftest_harness.h
selftests/futex: Refactor futex_priv_hash with kselftest_harness.h
selftests/futex: Refactor futex_waitv with kselftest_harness.h
selftests/futex: Refactor futex_requeue with kselftest_harness.h
selftests/futex: Refactor futex_wait with kselftest_harness.h
selftests/futex: Refactor futex_wait_private_mapped_file with kselftest_harness.h
selftests/futex: Refactor futex_wait_unitialized_heap with kselftest_harness.h
selftests/futex: Refactor futex_wait_wouldblock with kselftest_harness.h
selftests/futex: Refactor futex_wait_timeout with kselftest_harness.h
selftests/futex: Refactor futex_requeue_pi_signal_restart with kselftest_harness.h
selftests/futex: Refactor futex_requeue_pi_mismatched_ops with kselftest_harness.h
selftests/futex: Refactor futex_requeue_pi with kselftest_harness.h
selftests: kselftest: Create ksft_print_dbg_msg()
futex: Don't leak robust_list pointer on exec race
selftest/futex: Compile also with libnuma < 2.0.16
selftest/futex: Reintroduce "Memory out of range" numa_mpol's subtest
selftest/futex: Make the error check more precise for futex_numa_mpol
...
|
||
|
Linus Torvalds
|
1d17e808cf |
Two fixes for RSEQ:
1) Protect the event mask modification against the membarrier() IPI as
otherwise the RmW operation is unprotected and events might be lost.
2) Fix the weak symbol reference in rseq selftests
The current weak RSEQ symbols definitions which were added to allow
static linkage are not working correctly as the effectively re-define
the glibc symbols leading to multiple versions of the symbols when
compiled with -fno-common. Mark them as 'extern' to convert them from
weak symbol definitions to weak symbol references. That works with
static and dynamic linkage independent of -fcommon and -fno-common.
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Merge tag 'core-rseq-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull rseq updates from Thomas Gleixner:
"Two fixes for RSEQ:
- Protect the event mask modification against the membarrier() IPI as
otherwise the RmW operation is unprotected and events might be lost
- Fix the weak symbol reference in rseq selftests
The current weak RSEQ symbols definitions which were added to allow
static linkage are not working correctly as they effectively
re-define the glibc symbols leading to multiple versions of the
symbols when compiled with -fno-common.
Mark them as 'extern' to convert them from weak symbol definitions
to weak symbol references. That works with static and dynamic
linkage independent of -fcommon and -fno-common"
* tag 'core-rseq-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rseq/selftests: Use weak symbol reference, not definition, to link with glibc
rseq: Protect event mask against membarrier IPI
|
||
|
Linus Torvalds
|
22bdd6e68b |
- Add functionality to provide runtime firmware updates for the non-x86 parts
of an AMD platform like the security processor (ASP) firmware, modules etc, for example. The intent being that these updates are interim, live fixups before a proper BIOS update can be attempted - Add guest support for AMD's Secure AVIC feature which gives encrypted guests the needed protection against a malicious hypervisor generating unexpected interrupts and injecting them into such guest, thus interfering with its operation in an unexpected and negative manner. The advantage of this scheme is that the guest determines which interrupts and when to accept them vs leaving that to the benevolence (or not) of the hypervisor - Strictly separate the startup code from the rest of the kernel where former is executed from the initial 1:1 mapping of memory. The problem was that the toolchain-generated version of the code was being executed from a different mapping of memory than what was "assumed" during code generation, needing an ever-growing pile of fixups for absolute memory references which are invalid in the early, 1:1 memory mapping during boot. The major advantage of this is that there's no need to check the 1:1 mapping portion of the code for absolute relocations anymore and get rid of the RIP_REL_REF() macro sprinkling all over the place. For more info, see Ard's very detailed writeup on this: https://lore.kernel.org/r/CAMj1kXEzKEuePEiHB%2BHxvfQbFz0sTiHdn4B%2B%2BzVBJ2mhkPkQ4Q@mail.gmail.com - The usual cleanups and fixes -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmjWaaMACgkQEsHwGGHe VUr/RBAAnfneG+5U7f5x+hYW68mwZu07eoQn02IW9WGb2xjV6LKYxzDqyEj/+l+x jgN77i1uhl/4sqqKBvUjFfgot1gQ0g6M2fok2eZscSf+AHZF+LfDJPl4dFheVENo KtPieu1yi2bA+stL9JgaKh0I1ELX40qebXeZY4H4rYVzokHG0H+CEcuhv6Es71bW 1C6efkZKHS3pAhlRUoa2MZagxnw+3mn9bfZDvSSNNM6I4qy9/CAPZlWw0jGrXKQX K/gjBI2KcoqK2bdJtCQsTvbrsuBedjkM6BZveAAhvOVCh6Aq6lnbqirJPJX8WJLq bIDAdsWGJ1vOzcgiPwT0e3qsfaTWep6MewcAQ/HnzrksH+IFb7J/l9awUgGY6LFh GzG7KPEKIWiLOxYFC+gLxRn8SWhcXHeY/fB8i5OOnhnikODWG4bJtM8F1MTQO4O1 u2UuZ+wNzgdatJDXmLK1eluyuhkIqCZ7Hd8kpE0Zr32rbipEvuxnUPSyMzfhDM9M +UJGm3C205vPU6doRG8X0+EosFGCyZcixQNXhOugmedT5g3XGHHoJtiLj2i29jLN Xi0npxh2hwBe6N+WcIRnOfonFTsp6wWYatWPnGWTChpe+OGj9ZISXpmxnFUVCSag spG1J+upBA7ck1exuwpS3ldNSiw/066iTxB7Ht02vbeQ4JXIF6M= =shVa -----END PGP SIGNATURE----- Merge tag 'x86_apic_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 SEV and apic updates from Borislav Petkov: - Add functionality to provide runtime firmware updates for the non-x86 parts of an AMD platform like the security processor (ASP) firmware, modules etc, for example. The intent being that these updates are interim, live fixups before a proper BIOS update can be attempted - Add guest support for AMD's Secure AVIC feature which gives encrypted guests the needed protection against a malicious hypervisor generating unexpected interrupts and injecting them into such guest, thus interfering with its operation in an unexpected and negative manner. The advantage of this scheme is that the guest determines which interrupts and when to accept them vs leaving that to the benevolence (or not) of the hypervisor - Strictly separate the startup code from the rest of the kernel where former is executed from the initial 1:1 mapping of memory. The problem was that the toolchain-generated version of the code was being executed from a different mapping of memory than what was "assumed" during code generation, needing an ever-growing pile of fixups for absolute memory references which are invalid in the early, 1:1 memory mapping during boot. The major advantage of this is that there's no need to check the 1:1 mapping portion of the code for absolute relocations anymore and get rid of the RIP_REL_REF() macro sprinkling all over the place. For more info, see Ard's very detailed writeup on this [1] - The usual cleanups and fixes Link: https://lore.kernel.org/r/CAMj1kXEzKEuePEiHB%2BHxvfQbFz0sTiHdn4B%2B%2BzVBJ2mhkPkQ4Q@mail.gmail.com [1] * tag 'x86_apic_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (49 commits) x86/boot: Drop erroneous __init annotation from early_set_pages_state() crypto: ccp - Add AMD Seamless Firmware Servicing (SFS) driver crypto: ccp - Add new HV-Fixed page allocation/free API x86/sev: Add new dump_rmp parameter to snp_leak_pages() API x86/startup/sev: Document the CPUID flow in the boot #VC handler objtool: Ignore __pi___cfi_ prefixed symbols x86/sev: Zap snp_abort() x86/apic/savic: Do not use snp_abort() x86/boot: Get rid of the .head.text section x86/boot: Move startup code out of __head section efistub/x86: Remap inittext read-execute when needed x86/boot: Create a confined code area for startup code x86/kbuild: Incorporate boot/startup/ via Kbuild makefile x86/boot: Revert "Reject absolute references in .head.text" x86/boot: Check startup code for absence of absolute relocations objtool: Add action to check for absence of absolute relocations x86/sev: Export startup routines for later use x86/sev: Move __sev_[get|put]_ghcb() into separate noinstr object x86/sev: Provide PIC aliases for SEV related data objects x86/boot: Provide PIC aliases for 5-level paging related constants ... |
||
|
Linus Torvalds
|
a65879b458 |
- Make UMIP instruction detection more robust
- Correct and cleanup AMD CPU topology detection; document the relevant CPUID leaves topology parsing precedence on AMD - Add support for running the kernel as guest on FreeBSD's Bhyve hypervisor - Cleanups and improvements -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmjWZx4ACgkQEsHwGGHe VUqskRAAuhsxDxqbA/HnHlDkLM2YgfpE8j9XkFen9R1kFNi8WtQ7DPNdA9SeDJF2 NpRuZZpzpQrmHwwlERHzOY6AxwWJXdK2lA2GF/jkdvB9lRDAwlb4nenBZNnTL1zo NDctnKPto1Nz1fOLFl3Hve++PoOkdzOQZZPQ7LYS5wm6zaRv2O5h0s6Rfw7Kt9YC Sl+WYFZ3SA8KOoaHZKhGcgsLNkxv0lV7oXyhSQ1MXT3rFkG2jt/IzjwCyOVK50bj iob6MOfpuM9SG2ZMGBL4P82GBUG1E3BMhqiLbYYxyuMdxRgt/t3zlK4x/yjNbOET 3iQM+aimqOlHKmnJm/qzs2rjRhYQmBjNjIPcuCoiVVG0U6er6VKl+x2wLdAPlTq4 Du6Oj7veEOLF9lAMQOq/9ZeG7IVlQT1xJ5RwtMpnZKhnlStnFlyDgPAAYs88L3Uf aAga/XdLd40mxOj/z3+2Fn7snOHNK/79NWB35DFOjjivNyQXMgk9hPxibECb+9bO sXFwhFfujFI+X7UZbfISoaTLq7c/D0EV9uqIEYjbpFXhxTXgMcey/tMDWxCLnGyl camkN8An1PmCsZdD9vud4QhuDqPhX6S8ndyK1C/EaStxT9t76sOSpEpybeee0xxq eiktBLp0uqlyK6Oo7J0/LcBnNRrYFeipU6HwztY3bz3VH/ejYWM= =sMTE -----END PGP SIGNATURE----- Merge tag 'x86_cpu_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cpuid updates from Borislav Petkov: - Make UMIP instruction detection more robust - Correct and cleanup AMD CPU topology detection; document the relevant CPUID leaves topology parsing precedence on AMD - Add support for running the kernel as guest on FreeBSD's Bhyve hypervisor - Cleanups and improvements * tag 'x86_cpu_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/umip: Fix decoding of register forms of 0F 01 (SGDT and SIDT aliases) x86/umip: Check that the instruction opcode is at least two bytes Documentation/x86/topology: Detail CPUID leaves used for topology enumeration x86/cpu/topology: Define AMD64_CPUID_EXT_FEAT MSR x86/cpu/topology: Check for X86_FEATURE_XTOPOLOGY instead of passing has_xtopology x86/cpu/cacheinfo: Simplify cacheinfo_amd_init_llc_id() using _cpuid4_info x86/cpu: Rename and move CPU model entry for Diamond Rapids x86/cpu: Detect FreeBSD Bhyve hypervisor |
||
|
Linus Torvalds
|
98afd4dd3d |
- Add instruction decoding support for the XOP-prefixed instruction set
present on the AMD Bulldozer uarch -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmjWZM8ACgkQEsHwGGHe VUpDwQ//UeVlmtFqIK/KJSoc0/WrL34D7ICqoKuo9ocLoYHrGLNxinV18GhtJ4vD o1pmuwcLj6fIEIjTvlNSvs1/mtB7XYNRMm/W21fOLAyhRARg1P3Mi+crpMB/HrfA Lowx+YjKYFRo6NUaNARCAfgnkkFz9w715o5ab5rr3yxkqeVSyYUz7Rl2eIDc03vl HYEarpRFhrvwi8ccxoz1xKECehmvW0Htn8QzaHGrJkOf/gfWJdIz5KmjFDONt8mM AdMVTZ49lM3fzoYRpsr2+x5oHWfjMw1nRYyJliLhriVDga03FNzj6FL+AHt3itvG 2wFqJfYxOETMjdvSHAQHkOZUu7ZSKFNIwtYdqsdklTPNB5AVNE2ANd21vY2+wgUP P5aIXNo7SEIaUSxkE7JfUubJTn/lRExZOkgZx/fwYeFbF1Wc7e5w9Q5bhxq70s1A 1E0iSAPR30t9HvveDCDLBGqbNAfNsBN0E3m4EULRcEwKZ3P7OvknddBHpVjnwEG+ +OgDf/mJQt3hW6ubvYHvgEhOYyEnc92z9YEtqFiGG6bRx0ppqO+K/7FE7vBrUp7a fDRsyYtWHLQVOZTmeStK7aeslM9BGnsmhACy566oaX1C11f2I7KLYQAI1apKb8A4 y+NjQUebmTBmlKx4J+QnKBOhGNbl1xbSFJPIoNM0WIlm410Od48= =mUtz -----END PGP SIGNATURE----- Merge tag 'x86_misc_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 instruction decoder update from Borislav Petkov: - Add instruction decoding support for the XOP-prefixed instruction set present on the AMD Bulldozer uarch [ These instructions don't normally happen, but a X86_NATIVE_CPU build on a bulldozer host can make the compiler then use these unusual instruction encodings ] * tag 'x86_misc_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/insn: Add XOP prefix instructions decoder support |
||
|
Linus Torvalds
|
e4dcbdff11 |
Performance events updates for v6.18:
Core perf code updates:
- Convert mmap() related reference counts to refcount_t. This
is in reaction to the recently fixed refcount bugs, which
could have been detected earlier and could have mitigated
the bug somewhat. (Thomas Gleixner, Peter Zijlstra)
- Clean up and simplify the callchain code, in preparation
for sframes. (Steven Rostedt, Josh Poimboeuf)
Uprobes updates:
- Add support to optimize usdt probes on x86-64, which
gives a substantial speedup. (Jiri Olsa)
- Cleanups and fixes on x86 (Peter Zijlstra)
PMU driver updates:
- Various optimizations and fixes to the Intel PMU driver
(Dapeng Mi)
Misc cleanups and fixes:
- Remove redundant __GFP_NOWARN (Qianfeng Rong)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance events updates from Ingo Molnar:
"Core perf code updates:
- Convert mmap() related reference counts to refcount_t. This is in
reaction to the recently fixed refcount bugs, which could have been
detected earlier and could have mitigated the bug somewhat (Thomas
Gleixner, Peter Zijlstra)
- Clean up and simplify the callchain code, in preparation for
sframes (Steven Rostedt, Josh Poimboeuf)
Uprobes updates:
- Add support to optimize usdt probes on x86-64, which gives a
substantial speedup (Jiri Olsa)
- Cleanups and fixes on x86 (Peter Zijlstra)
PMU driver updates:
- Various optimizations and fixes to the Intel PMU driver (Dapeng Mi)
Misc cleanups and fixes:
- Remove redundant __GFP_NOWARN (Qianfeng Rong)"
* tag 'perf-core-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (57 commits)
selftests/bpf: Fix uprobe_sigill test for uprobe syscall error value
uprobes/x86: Return error from uprobe syscall when not called from trampoline
perf: Skip user unwind if the task is a kernel thread
perf: Simplify get_perf_callchain() user logic
perf: Use current->flags & PF_KTHREAD|PF_USER_WORKER instead of current->mm == NULL
perf: Have get_perf_callchain() return NULL if crosstask and user are set
perf: Remove get_perf_callchain() init_nr argument
perf/x86: Print PMU counters bitmap in x86_pmu_show_pmu_cap()
perf/x86/intel: Add ICL_FIXED_0_ADAPTIVE bit into INTEL_FIXED_BITS_MASK
perf/x86/intel: Change macro GLOBAL_CTRL_EN_PERF_METRICS to BIT_ULL(48)
perf/x86: Add PERF_CAP_PEBS_TIMING_INFO flag
perf/x86/intel: Fix IA32_PMC_x_CFG_B MSRs access error
perf/x86/intel: Use early_initcall() to hook bts_init()
uprobes: Remove redundant __GFP_NOWARN
selftests/seccomp: validate uprobe syscall passes through seccomp
seccomp: passthrough uprobe systemcall without filtering
selftests/bpf: Fix uprobe syscall shadow stack test
selftests/bpf: Change test_uretprobe_regs_change for uprobe and uretprobe
selftests/bpf: Add uprobe_regs_equal test
selftests/bpf: Add optimized usdt variant for basic usdt test
...
|
||
|
Paolo Bonzini
|
12abeb81c8 |
KVM x86 CET virtualization support for 6.18
Add support for virtualizing Control-flow Enforcement Technology (CET) on
Intel (Shadow Stacks and Indirect Branch Tracking) and AMD (Shadow Stacks).
CET is comprised of two distinct features, Shadow Stacks (SHSTK) and Indirect
Branch Tracking (IBT), that can be utilized by software to help provide
Control-flow integrity (CFI). SHSTK defends against backward-edge attacks
(a.k.a. Return-oriented programming (ROP)), while IBT defends against
forward-edge attacks (a.k.a. similarly CALL/JMP-oriented programming (COP/JOP)).
Attackers commonly use ROP and COP/JOP methodologies to redirect the control-
flow to unauthorized targets in order to execute small snippets of code,
a.k.a. gadgets, of the attackers choice. By chaining together several gadgets,
an attacker can perform arbitrary operations and circumvent the system's
defenses.
SHSTK defends against backward-edge attacks, which execute gadgets by modifying
the stack to branch to the attacker's target via RET, by providing a second
stack that is used exclusively to track control transfer operations. The
shadow stack is separate from the data/normal stack, and can be enabled
independently in user and kernel mode.
When SHSTK is is enabled, CALL instructions push the return address on both the
data and shadow stack. RET then pops the return address from both stacks and
compares the addresses. If the return addresses from the two stacks do not
match, the CPU generates a Control Protection (#CP) exception.
IBT defends against backward-edge attacks, which branch to gadgets by executing
indirect CALL and JMP instructions with attacker controlled register or memory
state, by requiring the target of indirect branches to start with a special
marker instruction, ENDBRANCH. If an indirect branch is executed and the next
instruction is not an ENDBRANCH, the CPU generates a #CP. Note, ENDBRANCH
behaves as a NOP if IBT is disabled or unsupported.
From a virtualization perspective, CET presents several problems. While SHSTK
and IBT have two layers of enabling, a global control in the form of a CR4 bit,
and a per-feature control in user and kernel (supervisor) MSRs (U_CET and S_CET
respectively), the {S,U}_CET MSRs can be context switched via XSAVES/XRSTORS.
Practically speaking, intercepting and emulating XSAVES/XRSTORS is not a viable
option due to complexity, and outright disallowing use of XSTATE to context
switch SHSTK/IBT state would render the features unusable to most guests.
To limit the overall complexity without sacrificing performance or usability,
simply ignore the potential virtualization hole, but ensure that all paths in
KVM treat SHSTK/IBT as usable by the guest if the feature is supported in
hardware, and the guest has access to at least one of SHSTK or IBT. I.e. allow
userspace to advertise one of SHSTK or IBT if both are supported in hardware,
even though doing so would allow a misbehaving guest to use the unadvertised
feature.
Fully emulating SHSTK and IBT would also require significant complexity, e.g.
to track and update branch state for IBT, and shadow stack state for SHSTK.
Given that emulating large swaths of the guest code stream isn't necessary on
modern CPUs, punt on emulating instructions that meaningful impact or consume
SHSTK or IBT. However, instead of doing nothing, explicitly reject emulation
of such instructions so that KVM's emulator can't be abused to circumvent CET.
Disable support for SHSTK and IBT if KVM is configured such that emulation of
arbitrary guest instructions may be required, specifically if Unrestricted
Guest (Intel only) is disabled, or if KVM will emulate a guest.MAXPHYADDR that
is smaller than host.MAXPHYADDR.
Lastly disable SHSTK support if shadow paging is enabled, as the protections
for the shadow stack are novel (shadow stacks require Writable=0,Dirty=1, so
that they can't be directly modified by software), i.e. would require
non-trivial support in the Shadow MMU.
Note, AMD CPUs currently only support SHSTK. Explicitly disable IBT support
so that KVM doesn't over-advertise if AMD CPUs add IBT, and virtualizing IBT
in SVM requires KVM modifications.
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Merge tag 'kvm-x86-cet-6.18' of https://github.com/kvm-x86/linux into HEAD
KVM x86 CET virtualization support for 6.18
Add support for virtualizing Control-flow Enforcement Technology (CET) on
Intel (Shadow Stacks and Indirect Branch Tracking) and AMD (Shadow Stacks).
CET is comprised of two distinct features, Shadow Stacks (SHSTK) and Indirect
Branch Tracking (IBT), that can be utilized by software to help provide
Control-flow integrity (CFI). SHSTK defends against backward-edge attacks
(a.k.a. Return-oriented programming (ROP)), while IBT defends against
forward-edge attacks (a.k.a. similarly CALL/JMP-oriented programming (COP/JOP)).
Attackers commonly use ROP and COP/JOP methodologies to redirect the control-
flow to unauthorized targets in order to execute small snippets of code,
a.k.a. gadgets, of the attackers choice. By chaining together several gadgets,
an attacker can perform arbitrary operations and circumvent the system's
defenses.
SHSTK defends against backward-edge attacks, which execute gadgets by modifying
the stack to branch to the attacker's target via RET, by providing a second
stack that is used exclusively to track control transfer operations. The
shadow stack is separate from the data/normal stack, and can be enabled
independently in user and kernel mode.
When SHSTK is is enabled, CALL instructions push the return address on both the
data and shadow stack. RET then pops the return address from both stacks and
compares the addresses. If the return addresses from the two stacks do not
match, the CPU generates a Control Protection (#CP) exception.
IBT defends against backward-edge attacks, which branch to gadgets by executing
indirect CALL and JMP instructions with attacker controlled register or memory
state, by requiring the target of indirect branches to start with a special
marker instruction, ENDBRANCH. If an indirect branch is executed and the next
instruction is not an ENDBRANCH, the CPU generates a #CP. Note, ENDBRANCH
behaves as a NOP if IBT is disabled or unsupported.
From a virtualization perspective, CET presents several problems. While SHSTK
and IBT have two layers of enabling, a global control in the form of a CR4 bit,
and a per-feature control in user and kernel (supervisor) MSRs (U_CET and S_CET
respectively), the {S,U}_CET MSRs can be context switched via XSAVES/XRSTORS.
Practically speaking, intercepting and emulating XSAVES/XRSTORS is not a viable
option due to complexity, and outright disallowing use of XSTATE to context
switch SHSTK/IBT state would render the features unusable to most guests.
To limit the overall complexity without sacrificing performance or usability,
simply ignore the potential virtualization hole, but ensure that all paths in
KVM treat SHSTK/IBT as usable by the guest if the feature is supported in
hardware, and the guest has access to at least one of SHSTK or IBT. I.e. allow
userspace to advertise one of SHSTK or IBT if both are supported in hardware,
even though doing so would allow a misbehaving guest to use the unadvertised
feature.
Fully emulating SHSTK and IBT would also require significant complexity, e.g.
to track and update branch state for IBT, and shadow stack state for SHSTK.
Given that emulating large swaths of the guest code stream isn't necessary on
modern CPUs, punt on emulating instructions that meaningful impact or consume
SHSTK or IBT. However, instead of doing nothing, explicitly reject emulation
of such instructions so that KVM's emulator can't be abused to circumvent CET.
Disable support for SHSTK and IBT if KVM is configured such that emulation of
arbitrary guest instructions may be required, specifically if Unrestricted
Guest (Intel only) is disabled, or if KVM will emulate a guest.MAXPHYADDR that
is smaller than host.MAXPHYADDR.
Lastly disable SHSTK support if shadow paging is enabled, as the protections
for the shadow stack are novel (shadow stacks require Writable=0,Dirty=1, so
that they can't be directly modified by software), i.e. would require
non-trivial support in the Shadow MMU.
Note, AMD CPUs currently only support SHSTK. Explicitly disable IBT support
so that KVM doesn't over-advertise if AMD CPUs add IBT, and virtualizing IBT
in SVM requires KVM modifications.
|
||
|
Paolo Bonzini
|
d05ca6b793 |
KVM x86 changes for 6.18
- Don't (re)check L1 intercepts when completing userspace I/O to fix a flaw
where a misbehaving usersepace (a.k.a. syzkaller) could swizzle L1's
intercepts and trigger a variety of WARNs in KVM.
- Emulate PERF_CNTR_GLOBAL_STATUS_SET for PerfMonV2 guests, as the MSR is
supposed to exist for v2 PMUs.
- Allow Centaur CPU leaves (base 0xC000_0000) for Zhaoxin CPUs.
- Clean up KVM's vector hashing code for delivering lowest priority IRQs.
- Clean up the fastpath handler code to only handle IPIs and WRMSRs that are
actually "fast", as opposed to handling those that KVM _hopes_ are fast, and
in the process of doing so add fastpath support for TSC_DEADLINE writes on
AMD CPUs.
- Clean up a pile of PMU code in anticipation of adding support for mediated
vPMUs.
- Add support for the immediate forms of RDMSR and WRMSRNS, sans full
emulator support (KVM should never need to emulate the MSRs outside of
forced emulation and other contrived testing scenarios).
- Clean up the MSR APIs in preparation for CET and FRED virtualization, as
well as mediated vPMU support.
- Rejecting a fully in-kernel IRQCHIP if EOIs are protected, i.e. for TDX VMs,
as KVM can't faithfully emulate an I/O APIC for such guests.
- KVM_REQ_MSR_FILTER_CHANGED into a generic RECALC_INTERCEPTS in preparation
for mediated vPMU support, as KVM will need to recalculate MSR intercepts in
response to PMU refreshes for guests with mediated vPMUs.
- Misc cleanups and minor fixes.
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Merge tag 'kvm-x86-misc-6.18' of https://github.com/kvm-x86/linux into HEAD
KVM x86 changes for 6.18
- Don't (re)check L1 intercepts when completing userspace I/O to fix a flaw
where a misbehaving usersepace (a.k.a. syzkaller) could swizzle L1's
intercepts and trigger a variety of WARNs in KVM.
- Emulate PERF_CNTR_GLOBAL_STATUS_SET for PerfMonV2 guests, as the MSR is
supposed to exist for v2 PMUs.
- Allow Centaur CPU leaves (base 0xC000_0000) for Zhaoxin CPUs.
- Clean up KVM's vector hashing code for delivering lowest priority IRQs.
- Clean up the fastpath handler code to only handle IPIs and WRMSRs that are
actually "fast", as opposed to handling those that KVM _hopes_ are fast, and
in the process of doing so add fastpath support for TSC_DEADLINE writes on
AMD CPUs.
- Clean up a pile of PMU code in anticipation of adding support for mediated
vPMUs.
- Add support for the immediate forms of RDMSR and WRMSRNS, sans full
emulator support (KVM should never need to emulate the MSRs outside of
forced emulation and other contrived testing scenarios).
- Clean up the MSR APIs in preparation for CET and FRED virtualization, as
well as mediated vPMU support.
- Rejecting a fully in-kernel IRQCHIP if EOIs are protected, i.e. for TDX VMs,
as KVM can't faithfully emulate an I/O APIC for such guests.
- KVM_REQ_MSR_FILTER_CHANGED into a generic RECALC_INTERCEPTS in preparation
for mediated vPMU support, as KVM will need to recalculate MSR intercepts in
response to PMU refreshes for guests with mediated vPMUs.
- Misc cleanups and minor fixes.
|
||
|
Paolo Bonzini
|
473badf5c4 |
KVM selftests changes for 6.18
- Add #DE coverage in the fastops test (the only exception that's guest-
triggerable in fastop-emulated instructions).
- Fix PMU selftests errors encountered on Granite Rapids (GNR), Sierra
Forest (SRF) and Clearwater Forest (CWF).
- Minor cleanups and improvements
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Merge tag 'kvm-x86-selftests-6.18' of https://github.com/kvm-x86/linux into HEAD
KVM selftests changes for 6.18
- Add #DE coverage in the fastops test (the only exception that's guest-
triggerable in fastop-emulated instructions).
- Fix PMU selftests errors encountered on Granite Rapids (GNR), Sierra
Forest (SRF) and Clearwater Forest (CWF).
- Minor cleanups and improvements
|
||
|
Paolo Bonzini
|
6a13749717 |
LoongArch KVM changes for v6.18
1. Add PTW feature detection on new hardware. 2. Add sign extension with kernel MMIO/IOCSR emulation. 3. Improve in-kernel IPI emulation. 4. Improve in-kernel PCH-PIC emulation. 5. Move kvm_iocsr tracepoint out of generic code. -----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEzOlt8mkP+tbeiYy5AoYrw/LiJnoFAmjTd/wWHGNoZW5odWFj YWlAa2VybmVsLm9yZwAKCRAChivD8uImep7+D/4uA7triOH1eB4TikB6NlF3T+ry 1qLycMy+O8mm24UxT0217sqOtKiZHrglyJB+cCmxPNjq0vWX/F08VgNoh8+6feWL 6X28YlJ8qcRGCTUxlaaleEGIiXt7lbbnZKFfiBn8Ibb9rHn3tE8V738Kzm+SV1Dr bSZlAGnAqp/pRI1UFBQ0T+GpqQz+UvDw8JCOJj5Vs5UylhDY3atPaNhLjfR2tkUh AFrqr87gKPHdJxmk//7u+e6QLGViBB9aO1fNMP6y8gViJRfkCEbbm8XYe0qe+SmO QpLKuHBEVo7C8vOzemEVieQX2VujDcGSDDRGCU3wKbIpbIQgmOGbbsKfrKf9FxaR 8ieNyP3UExr2ZvYV9SOLqeLD2K2yox9EkO7tD2CM9kwev9HUtr+6e/OaIP3Sjth2 rd7V47x/8bCdgt0grQXIxejebbO5NawnFjXlFS7M2SRQXLMtyfFbiuZVGw0kZ+nn rzMeodQVmGi518nmmc9YcyW0/R8qer9DaaiN1ybgVF/4ZSK+LhlZo7xv4Dv5bWuv ThR89Iz09xUmmGYDniAR6q3/zH/52lJAuNU4tQGwB6O/+z8qJR0tZFM86KnApyLU pGI3q1s0g9ZK9mouaM+jcV5/fzFGoTXGkIQqaaXOqob97klagudAdBWKN74YynT2 rAU7sWXF6F9WsKX2sA== =keSO -----END PGP SIGNATURE----- Merge tag 'loongarch-kvm-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD LoongArch KVM changes for v6.18 1. Add PTW feature detection on new hardware. 2. Add sign extension with kernel MMIO/IOCSR emulation. 3. Improve in-kernel IPI emulation. 4. Improve in-kernel PCH-PIC emulation. 5. Move kvm_iocsr tracepoint out of generic code. |
||
|
Paolo Bonzini
|
924ccf1d09 |
KVM/riscv changes for 6.18
- Added SBI FWFT extension for Guest/VM with misaligned delegation and pointer masking PMLEN features - Added ONE_REG interface for SBI FWFT extension - Added Zicbop and bfloat16 extensions for Guest/VM - Enabled more common KVM selftests for RISC-V such as access_tracking_perf_test, dirty_log_perf_test, memslot_modification_stress_test, memslot_perf_test, mmu_stress_test, and rseq_test - Added SBI v3.0 PMU enhancements in KVM and perf driver -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEZdn75s5e6LHDQ+f/rUjsVaLHLAcFAmjU1XEACgkQrUjsVaLH LAfahQ//aPSwG0jbPwRSmWtoqdm38VvKYuWOOxeCjKyas5w0cZPkMQCh3zV/Ks92 YKNIe6wlDeLIlT+qIzAi5VLwHHiC3ggoJsuNhf7/qmJJvks+1quvl1clUDkVGbRu G+FKFkRpBa1HF2O3NASnvBnRLYzXa/wKOuArwsY5DEG4+irnJU3AegbqRuhyPBFr VX+LwpfUUHipFGg/0ivflsVBjcz42Y3i1VQ4oXzuHqsRn3Ig3eSy9dGTHIOqJ0A3 leNbDUSdZxnMlj3Sfab7hH4Vxlr8kiCEgMogHyYpnlyPvG8zJobMWDE9Ziy86D7f 130zMcHuF0ZkeuaKX+3o2L7yGNTnN/JNtns7VtClRShGqSA8Dtn2xLhnvyray7RH CIYjv//34z1BjWyCBfuN5kFIfX5K7cNQHlDP7RVfgw91k7rbCGCJF743nkxz1WBX 98G05/Rnmn+KCtU8t2pRoG9Qkq+bE3iz8Ka8thmiUNciqO78nn/p7a6OEMcjn7jH C+VUNST519UBGCjLehBrCZuUOtrPRozHz7Adx3VTJT5wBX2hd/QLoNoMssEi9VmS 1j/abh7HJcbe7aTUDWUhOK9I+bPHJRsbeNyL5r9jpoC2Xg5Njh/V3aQZ/uuLzO5+ pYjciRrrmdZ30xkInulWI6wORHkmki34RRmsM9gqYIJBMV+Rcxg= =BCyU -----END PGP SIGNATURE----- Merge tag 'kvm-riscv-6.18-1' of https://github.com/kvm-riscv/linux into HEAD KVM/riscv changes for 6.18 - Added SBI FWFT extension for Guest/VM with misaligned delegation and pointer masking PMLEN features - Added ONE_REG interface for SBI FWFT extension - Added Zicbop and bfloat16 extensions for Guest/VM - Enabled more common KVM selftests for RISC-V such as access_tracking_perf_test, dirty_log_perf_test, memslot_modification_stress_test, memslot_perf_test, mmu_stress_test, and rseq_test - Added SBI v3.0 PMU enhancements in KVM and perf driver |
||
|
Paolo Bonzini
|
924ebaefce |
KVM/arm64 updates for 6.18
- Add support for FF-A 1.2 as the secure memory conduit for pKVM, allowing more registers to be used as part of the message payload. - Change the way pKVM allocates its VM handles, making sure that the privileged hypervisor is never tricked into using uninitialised data. - Speed up MMIO range registration by avoiding unnecessary RCU synchronisation, which results in VMs starting much quicker. - Add the dump of the instruction stream when panic-ing in the EL2 payload, just like the rest of the kernel has always done. This will hopefully help debugging non-VHE setups. - Add 52bit PA support to the stage-1 page-table walker, and make use of it to populate the fault level reported to the guest on failing to translate a stage-1 walk. - Add NV support to the GICv3-on-GICv5 emulation code, ensuring feature parity for guests, irrespective of the host platform. - Fix some really ugly architecture problems when dealing with debug in a nested VM. This has some bad performance impacts, but is at least correct. - Add enough infrastructure to be able to disable EL2 features and give effective values to the EL2 control registers. This then allows a bunch of features to be turned off, which helps cross-host migration. - Large rework of the selftest infrastructure to allow most tests to transparently run at EL2. This is the first step towards enabling NV testing. - Various fixes and improvements all over the map, including one BE fix, just in time for the removal of the feature. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAmjVhSsACgkQI9DQutE9 ekOSIg//YdbA/zo17GrLnJnlGdUnS0e3/357n3e5Lypx1UFRDTmNacpVPw4VG/jt eVpQn7AgYwyvKfCq46eD+hBBqNv1XTn4DeXttv7CmVqhCRythsEvDkTBWSt7oYUZ xfYXCMKNhqUElH4AbYYx3y7nb2E9/KVGr+NBn6Vf5c14OZ3MGVc/fyp4jM1ih5dR kcV2onAYohlIGvFEyZMBtJ+jkYkqfIbfxfqCL0RAET0aEBFcmM1aXybWZj47hlLM f2j+E6cFQ0ZzUt+3pFhT75wo43lHGtIFDjVd60uishyU+NXTVvqRmXDTRU4k546W 18HHX1yijbzuXIatVhVRo2hIq3jKU37T9wtj46BejbDHRdAPENEyN/Qopm7rNS+X mCwOT7He6KR+H4rU6nFaTcsS7bNRCvIbZP9i9zb6NElbvXu5QnM8BUQsYFCDUa/n xtbtQlckbo/7zeoUsBDrGj2XmCf0d45FTHb7fdWOYEmMSmJhXYpUKdM4JcLyhKoQ DD0ox2S+pt2lwNw3XOSABdES0KJxCvDASAMIgn2h2sGpY8FxsBcVW/BufXopdafG UeInxWaILp2iCDM4tH2GLjKqlvMAOwcA+mAEZToXypxlJAnYA6J1pXCF8WEaM6+D BGrLli8Zd8JRs87byq6K7tp8oLNzZdliJp73j5jfOHTJA4MnvFI= =iAL3 -----END PGP SIGNATURE----- Merge tag 'kvmarm-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for 6.18 - Add support for FF-A 1.2 as the secure memory conduit for pKVM, allowing more registers to be used as part of the message payload. - Change the way pKVM allocates its VM handles, making sure that the privileged hypervisor is never tricked into using uninitialised data. - Speed up MMIO range registration by avoiding unnecessary RCU synchronisation, which results in VMs starting much quicker. - Add the dump of the instruction stream when panic-ing in the EL2 payload, just like the rest of the kernel has always done. This will hopefully help debugging non-VHE setups. - Add 52bit PA support to the stage-1 page-table walker, and make use of it to populate the fault level reported to the guest on failing to translate a stage-1 walk. - Add NV support to the GICv3-on-GICv5 emulation code, ensuring feature parity for guests, irrespective of the host platform. - Fix some really ugly architecture problems when dealing with debug in a nested VM. This has some bad performance impacts, but is at least correct. - Add enough infrastructure to be able to disable EL2 features and give effective values to the EL2 control registers. This then allows a bunch of features to be turned off, which helps cross-host migration. - Large rework of the selftest infrastructure to allow most tests to transparently run at EL2. This is the first step towards enabling NV testing. - Various fixes and improvements all over the map, including one BE fix, just in time for the removal of the feature. |
||
|
Paolo Bonzini
|
8cbb0df294 |
KVM/arm64 changes for 6.17, round #3
- Invalidate nested MMUs upon freeing the PGD to avoid WARNs when
visiting from an MMU notifier
- Fixes to the TLB match process and TLB invalidation range for
managing the VCNR pseudo-TLB
- Prevent SPE from erroneously profiling guests due to UNKNOWN reset
values in PMSCR_EL1
- Fix save/restore of host MDCR_EL2 to account for eagerly programming
at vcpu_load() on VHE systems
- Correct lock ordering when dealing with VGIC LPIs, avoiding scenarios
where an xarray's spinlock was nested with a *raw* spinlock
- Permit stage-2 read permission aborts which are possible in the case
of NV depending on the guest hypervisor's stage-2 translation
- Call raw_spin_unlock() instead of the internal spinlock API
- Fix parameter ordering when assigning VBAR_EL1
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Merge tag 'kvmarm-fixes-6.17-2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 changes for 6.17, round #3
- Invalidate nested MMUs upon freeing the PGD to avoid WARNs when
visiting from an MMU notifier
- Fixes to the TLB match process and TLB invalidation range for
managing the VCNR pseudo-TLB
- Prevent SPE from erroneously profiling guests due to UNKNOWN reset
values in PMSCR_EL1
- Fix save/restore of host MDCR_EL2 to account for eagerly programming
at vcpu_load() on VHE systems
- Correct lock ordering when dealing with VGIC LPIs, avoiding scenarios
where an xarray's spinlock was nested with a *raw* spinlock
- Permit stage-2 read permission aborts which are possible in the case
of NV depending on the guest hypervisor's stage-2 translation
- Call raw_spin_unlock() instead of the internal spinlock API
- Fix parameter ordering when assigning VBAR_EL1
[Pull into kvm/master to fix conflicts. - Paolo]
|
||
|
Linus Torvalds
|
755fa5b4fb |
cgroup: Changes for v6.18
- Extensive cpuset code cleanup and refactoring work with no functional changes: CPU mask computation logic refactoring, introducing new helpers, removing redundant code paths, and improving error handling for better maintainability. - A few bug fixes to cpuset including fixes for partition creation failures when isolcpus is in use, missing error returns, and null pointer access prevention in free_tmpmasks(). - Core cgroup changes include replacing the global percpu_rwsem with per-threadgroup rwsem when writing to cgroup.procs for better scalability, workqueue conversions to use WQ_PERCPU and system_percpu_wq to prepare for workqueue default switching from percpu to unbound, and removal of unused code including the post_attach callback. - New cgroup.stat.local time accounting feature that tracks frozen time duration. - Misc changes including selftests updates (new freezer time tests and backward compatibility fixes), documentation sync, string function safety improvements, and 64-bit division fixes. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCaNb1Sg4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGfLMAPwKwkvUg9DPJEuECRfM9woOOHyIWLp1DwUhpg1v Zq0lkAEAmo/+IkJXGZ7TGF+wzSj7GFIugrILu3upzLCHzgYoDgs= =39KF -----END PGP SIGNATURE----- Merge tag 'cgroup-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: - Extensive cpuset code cleanup and refactoring work with no functional changes: CPU mask computation logic refactoring, introducing new helpers, removing redundant code paths, and improving error handling for better maintainability. - A few bug fixes to cpuset including fixes for partition creation failures when isolcpus is in use, missing error returns, and null pointer access prevention in free_tmpmasks(). - Core cgroup changes include replacing the global percpu_rwsem with per-threadgroup rwsem when writing to cgroup.procs for better scalability, workqueue conversions to use WQ_PERCPU and system_percpu_wq to prepare for workqueue default switching from percpu to unbound, and removal of unused code including the post_attach callback. - New cgroup.stat.local time accounting feature that tracks frozen time duration. - Misc changes including selftests updates (new freezer time tests and backward compatibility fixes), documentation sync, string function safety improvements, and 64-bit division fixes. * tag 'cgroup-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (39 commits) cpuset: remove is_prs_invalid helper cpuset: remove impossible warning in update_parent_effective_cpumask cpuset: remove redundant special case for null input in node mask update cpuset: fix missing error return in update_cpumask cpuset: Use new excpus for nocpu error check when enabling root partition cpuset: fix failure to enable isolated partition when containing isolcpus Documentation: cgroup-v2: Sync manual toctree cpuset: use partition_cpus_change for setting exclusive cpus cpuset: use parse_cpulist for setting cpus.exclusive cpuset: introduce partition_cpus_change cpuset: refactor cpus_allowed_validate_change cpuset: refactor out validate_partition cpuset: introduce cpus_excl_conflict and mems_excl_conflict helpers cpuset: refactor CPU mask buffer parsing logic cpuset: Refactor exclusive CPU mask computation logic cpuset: change return type of is_partition_[in]valid to bool cpuset: remove unused assignment to trialcs->partition_root_state cpuset: move the root cpuset write check earlier cgroup/cpuset: Remove redundant rcu_read_lock/unlock() in spin_lock cgroup: Remove redundant rcu_read_lock/unlock() in spin_lock ... |
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Ian Rogers
|
3f20f98e2a |
perf vendor events intel: Update sierraforest events to v1.12
Update sierraforest events to v1.12 released in:
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Ian Rogers
|
0c32e2748c |
perf vendor events intel: Update sapphirerapids events to v1.35
Update sapphirerapids events to v1.35 released in: |
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Ian Rogers
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dd171167f2 |
perf vendor events intel: Update pantherlake events to v1.00
Update pantherlake events to v1.00 released in:
|
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Ian Rogers
|
53366556aa |
perf vendor events intel: Update meteorlake events to v1.17
Update lunarlake events to v1.17 released in:
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Ian Rogers
|
b4e77a135c |
perf vendor events intel: Update lunarlake events to v1.18
Update lunarlake events to v1.18 released in:
|
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Ian Rogers
|
399464cc90 |
perf vendor events intel: Update graniterapids events to v1.15
Update graniterapids events to v1.15 released in: |
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Ian Rogers
|
3c393a1169 |
perf vendor events intel: Update grandridge events to v1.10
Update grandridge events to v1.10 released in:
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Ian Rogers
|
26bc991c8a |
perf vendor events intel: Update emeraldrapids events to v1.20
Update emeraldrapids events to v1.20 released in: |
||
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Ian Rogers
|
d41129fe54 |
perf vendor events intel: Update arrowlake events to v1.13
Update arrowlake events to v1.13 released in:
|
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Ian Rogers
|
76619e81a8 |
perf vendor events intel: Update alderlake events to v1.34
Update alderlake events to v1.34 released in:
|
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Arnaldo Carvalho de Melo
|
aacaf65bb1 |
perf bpf: Check libbpf version to use btf_dump_type_data_opts.emit_strings
When building perf with LIBBPF_DYNAMIC=1 on a fedora system with
libbpf-devel 1.5 I it was breaking with:
util/bpf-event.c: In function ‘format_btf_variable’:
util/bpf-event.c:291:18: error: ‘const struct btf_dump_type_data_opts’ has no member named ‘emit_strings’
291 | .emit_strings = 1,
| ^~~~~~~~~~~~
util/bpf-event.c:291:33: error: initialized field overwritten [-Werror=override-init]
291 | .emit_strings = 1,
| ^
util/bpf-event.c:291:33: note: (near initialization for ‘opts.skip_names’)
Check the version before using that feature.
Reviewed-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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Arnaldo Carvalho de Melo
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5a022bf88f |
perf bpf: Move the LIBBPF_CURRENT_VERSION_GEQ macro to bpf-utils.h
We need it to fix some other libbpf version dependent issues when building with LIBBPF_DYNAMIC=1. Reviewed-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Ian Rogers
|
3a0f56d72a |
perf bpf-filter: Fix opts declaration on older libbpfs
Building perf with LIBBPF_DYNAMIC (ie not the default static linking of
libbpf with perf) is breaking as the libbpf isn't version 1.7 or newer,
where dont_enable is added to bpf_perf_event_opts.
To avoid this breakage add a compile time version check and don't
declare the variable when not present.
Fixes:
|
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Linus Torvalds
|
a23cd25bae |
sched_ext: Changes for v6.18
- Code organization cleanup. Separate internal types and accessors to ext_internal.h to reduce the size of ext.c and improve maintainability. - Prepare for cgroup sub-scheduler support by adding @sch parameter to various functions and helpers, reorganizing scheduler instance handling, and dropping obsolete helpers like scx_kf_exit() and kf_cpu_valid(). - Add new scx_bpf_cpu_curr() and scx_bpf_locked_rq() BPF helpers to provide safer access patterns with proper RCU protection. scx_bpf_cpu_rq() is deprecated with warnings due to potential race conditions. - Improve debugging with migration-disabled counter in error state dumps, SCX_EFLAG_INITIALIZED flag, bitfields for warning flags, and other enhancements to help diagnose issues. - Use cgroup_lock/unlock() for cgroup synchronization instead of scx_cgroup_rwsem based synchronization. This is simpler and allows enable/disable paths to synchronize against cgroup changes independent of the CPU controller. - rhashtable_lookup() replacement to avoid redundant RCU locking was reverted due to RCU usage warnings. Will be redone once rhashtable is updated to use rcu_dereference_all(). - Other misc updates and fixes including bypass handling improvements, scx_task_iter_relock() improvements, tools/sched_ext updates, and compatibility helpers. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCaNbpHQ4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGTzWAP9cOG1O2DE0nCJJlDfGoJd1suz9quK+OrVdXhO+ 6nnXoAEAonDP0jXtwoW9GVQFyj8WZ0mfV4QJk0OHM1CoOV5XkQY= =Ev85 -----END PGP SIGNATURE----- Merge tag 'sched_ext-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext updates from Tejun Heo: - Code organization cleanup. Separate internal types and accessors to ext_internal.h to reduce the size of ext.c and improve maintainability. - Prepare for cgroup sub-scheduler support by adding @sch parameter to various functions and helpers, reorganizing scheduler instance handling, and dropping obsolete helpers like scx_kf_exit() and kf_cpu_valid(). - Add new scx_bpf_cpu_curr() and scx_bpf_locked_rq() BPF helpers to provide safer access patterns with proper RCU protection. scx_bpf_cpu_rq() is deprecated with warnings due to potential race conditions. - Improve debugging with migration-disabled counter in error state dumps, SCX_EFLAG_INITIALIZED flag, bitfields for warning flags, and other enhancements to help diagnose issues. - Use cgroup_lock/unlock() for cgroup synchronization instead of scx_cgroup_rwsem based synchronization. This is simpler and allows enable/disable paths to synchronize against cgroup changes independent of the CPU controller. - rhashtable_lookup() replacement to avoid redundant RCU locking was reverted due to RCU usage warnings. Will be redone once rhashtable is updated to use rcu_dereference_all(). - Other misc updates and fixes including bypass handling improvements, scx_task_iter_relock() improvements, tools/sched_ext updates, and compatibility helpers. * tag 'sched_ext-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (28 commits) Revert "sched_ext: Use rhashtable_lookup() instead of rhashtable_lookup_fast()" sched_ext: Misc updates around scx_sched instance pointer sched_ext: Drop scx_kf_exit() and scx_kf_error() sched_ext: Add the @sch parameter to scx_dsq_insert_preamble/commit() sched_ext: Drop kf_cpu_valid() sched_ext: Add the @sch parameter to ext_idle helpers sched_ext: Add the @sch parameter to __bstr_format() sched_ext: Separate out scx_kick_cpu() and add @sch to it tools/sched_ext: scx_qmap: Make debug output quieter by default sched_ext: Make qmap dump operation non-destructive sched_ext: Add SCX_EFLAG_INITIALIZED to indicate successful ops.init() sched_ext: Use bitfields for boolean warning flags sched_ext: Fix stray scx_root usage in task_can_run_on_remote_rq() sched_ext: Improve SCX_KF_DISPATCH comment sched_ext: Use rhashtable_lookup() instead of rhashtable_lookup_fast() sched_ext: Verify RCU protection in scx_bpf_cpu_curr() sched_ext: Add migration-disabled counter to error state dump sched_ext: Fix NULL dereference in scx_bpf_cpu_rq() warning tools/sched_ext: Add compat helper for scx_bpf_cpu_curr() sched_ext: deprecation warn for scx_bpf_cpu_rq() ... |
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|
Gopi Krishna Menon
|
03faea8466 |
selftests/net: add tcp_port_share to .gitignore
Add the tcp_port_share test binary to .gitignore to avoid accidentally staging the build artifact. Signed-off-by: Gopi Krishna Menon <krishnagopi487@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250929163140.122383-1-krishnagopi487@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Benjamin Tissoires
|
6a88bb252b |
Merge branch 'for-6.18/selftests' into for-linus
- update vmtest.sh (Benjamin Tissoires) |
||
|
Jakub Kicinski
|
b3820e0e6c |
selftests: drv-net: psp: add tests for destroying devices
Add tests for making sure device can disappear while associations exist. This is netdevsim-only since destroying real devices is more tricky. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20250927225420.1443468-9-kuba@kernel.org Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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|
Jakub Kicinski
|
81236c74db |
selftests: drv-net: psp: add test for auto-adjusting TCP MSS
Test TCP MSS getting auto-adjusted. PSP adds an encapsulation overhead of 40B per packet, when used in transport mode without any virtualization cookie or other optional PSP header fields. The kernel should adjust the MSS for a connection after PSP tx state is reached. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20250927225420.1443468-8-kuba@kernel.org Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
Jakub Kicinski
|
2748087cf1 |
selftests: drv-net: psp: add connection breaking tests
Add test checking conditions which lead to connections breaking. Using bad key or connection gets stuck if device key is rotated twice. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20250927225420.1443468-7-kuba@kernel.org Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
Jakub Kicinski
|
81b8908531 |
selftests: drv-net: psp: add association tests
Add tests for exercising PSP associations for TCP sockets. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20250927225420.1443468-6-kuba@kernel.org Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
Jakub Kicinski
|
8f90dc6e41 |
selftests: drv-net: psp: add basic data transfer and key rotation tests
Add basic tests for sending data over PSP and making sure that key rotation toggles the MSB of the spi. Deploy PSP responder on the remote end. We also need a healthy dose of common helpers for setting up the connections, assertions and interrogating socket state on the Python side. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20250927225420.1443468-5-kuba@kernel.org Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
Jakub Kicinski
|
2aeb71b2f9 |
selftests: drv-net: add PSP responder
PSP tests need the remote system to support PSP, and some PSP capable application to exchange data with. Create a simple PSP responder app which we can build and deploy to the remote host. The tests themselves can be written in Python but for ease of deploying the responder is in C (using C YNL). Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20250927225420.1443468-4-kuba@kernel.org Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
Jakub Kicinski
|
8a5f956a9f |
selftests: drv-net: base device access API test
Simple PSP test to getting info about PSP devices. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20250927225420.1443468-3-kuba@kernel.org Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
Hangbin Liu
|
99e4c35ead |
selftests: bonding: add ipsec offload test
This introduces a test for IPSec offload over bonding, utilizing netdevsim for the testing process, as veth interfaces do not support IPSec offload. The test will ensure that the IPSec offload functionality remains operational even after a failover event occurs in the bonding configuration. Here is the test result: TEST: bond_ipsec_offload (active_slave eth0) [ OK ] TEST: bond_ipsec_offload (active_slave eth1) [ OK ] Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://patch.msgid.link/20250925023304.472186-2-liuhangbin@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
Linus Torvalds
|
417552999d |
powerpc updates for 6.18
- powerpc support for BPF arena and arena atomics
- Patches to switch to msi parent domain (per-device MSI domains)
- Add a lock contention tracepoint in the queued spinlock slowpath
- Fixes for underflow in pseries/powernv msi and pci paths
- Switch from legacy-of-mm-gpiochip dependency to platform driver
- Fixes for handling TLB misses
- Introduce support for powerpc papr-hvpipe
- Add vpa-dtl PMU driver for pseries platform
- Misc fixes and cleanups
Thanks to: Aboorva Devarajan, Aditya Bodkhe, Andrew Donnellan, Athira Rajeev, Cédric Le Goater, Christophe Leroy,
Erhard Furtner, Gautam Menghani, Geert Uytterhoeven, Haren Myneni, Hari Bathini, Joe Lawrence, Kajol Jain, Kienan Stewart,
Linus Walleij, Mahesh Salgaonkar, Nam Cao, Nicolas Schier, Nysal Jan K.A., Ritesh Harjani (IBM), Ruben Wauters,
Saket Kumar Bhaskar, Shashank MS, Shrikanth Hegde, Tejas Manhas, Thomas Gleixner, Thomas Huth, Thorsten Blum,
Tyrel Datwyler, Venkat Rao Bagalkote,
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Merge tag 'powerpc-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Madhavan Srinivasan:
- powerpc support for BPF arena and arena atomics
- Patches to switch to msi parent domain (per-device MSI domains)
- Add a lock contention tracepoint in the queued spinlock slowpath
- Fixes for underflow in pseries/powernv msi and pci paths
- Switch from legacy-of-mm-gpiochip dependency to platform driver
- Fixes for handling TLB misses
- Introduce support for powerpc papr-hvpipe
- Add vpa-dtl PMU driver for pseries platform
- Misc fixes and cleanups
Thanks to Aboorva Devarajan, Aditya Bodkhe, Andrew Donnellan, Athira
Rajeev, Cédric Le Goater, Christophe Leroy, Erhard Furtner, Gautam
Menghani, Geert Uytterhoeven, Haren Myneni, Hari Bathini, Joe Lawrence,
Kajol Jain, Kienan Stewart, Linus Walleij, Mahesh Salgaonkar, Nam Cao,
Nicolas Schier, Nysal Jan K.A., Ritesh Harjani (IBM), Ruben Wauters,
Saket Kumar Bhaskar, Shashank MS, Shrikanth Hegde, Tejas Manhas, Thomas
Gleixner, Thomas Huth, Thorsten Blum, Tyrel Datwyler, and Venkat Rao
Bagalkote.
* tag 'powerpc-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (49 commits)
powerpc/pseries: Define __u{8,32} types in papr_hvpipe_hdr struct
genirq/msi: Remove msi_post_free()
powerpc/perf/vpa-dtl: Add documentation for VPA dispatch trace log PMU
powerpc/perf/vpa-dtl: Handle the writing of perf record when aux wake up is needed
powerpc/perf/vpa-dtl: Add support to capture DTL data in aux buffer
powerpc/perf/vpa-dtl: Add support to setup and free aux buffer for capturing DTL data
docs: ABI: sysfs-bus-event_source-devices-vpa-dtl: Document sysfs event format entries for vpa_dtl pmu
powerpc/vpa_dtl: Add interface to expose vpa dtl counters via perf
powerpc/time: Expose boot_tb via accessor
powerpc/32: Remove PAGE_KERNEL_TEXT to fix startup failure
powerpc/fprobe: fix updated fprobe for function-graph tracer
powerpc/ftrace: support CONFIG_FUNCTION_GRAPH_RETVAL
powerpc64/modules: replace stub allocation sentinel with an explicit counter
powerpc64/modules: correctly iterate over stubs in setup_ftrace_ool_stubs
powerpc/ftrace: ensure ftrace record ops are always set for NOPs
powerpc/603: Really copy kernel PGD entries into all PGDIRs
powerpc/8xx: Remove left-over instruction and comments in DataStoreTLBMiss handler
powerpc/pseries: HVPIPE changes to support migration
powerpc/pseries: Enable hvpipe with ibm,set-system-parameter RTAS
powerpc/pseries: Enable HVPIPE event message interrupt
...
|
||
|
Linus Torvalds
|
cb7e3669c6 |
RISC-V updates for the v6.18 merge window (part one)
First set of RISC-V updates for the v6.18 merge window, including: - Replacement of __ASSEMBLY__ with __ASSEMBLER__ in header files (other architectures have already merged this type of cleanup) - The introduction of ioremap_wc() for RISC-V - Cleanup of the RISC-V kprobes code to use mostly-extant macros rather than open code - A RISC-V kprobes unit test - An architecture-specific endianness swap macro set implementation, leveraging some dedicated RISC-V instructions for this purpose if they are available - The ability to identity and communicate to userspace the presence of a MIPS P8700-specific ISA extension, and to leverage its MIPS-specific PAUSE implementation in cpu_relax() - Several other miscellaneous cleanups -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEElRDoIDdEz9/svf2Kx4+xDQu9KksFAmjaMVIACgkQx4+xDQu9 Kkva4g/9GE4gzwM+KHlc4e1sfsaTo4oXe9eV+Hj3gUJdM+g8dCtNFchPRCKFjHYb X9lm2YVL9Q3cZ7yWWy/DJtZ66Yz9foQ4laX7uYbjsdbdjbsAXLXhjNp6uk4nBrqb uW7Uq+Qel8qq66J/B4Z/U0UzF3e5MaptQ6sLuNRONY9OJUxG76zTSJVKwiVNsGaX 8W59b7ALFlCIwCVyXGm/KO1EELjl8FKDENWXFE1v6T8XvfXfYuhcvUMp84ebbzHV D4kQrO3nxKQVgKEdCtW8xxt0/aWkYQ8zbQg8bD0gDDzMYb5uiJDcMFaa8ZuEYiLg EcAJX8LmE5GGlTcJf8/jxvaA87hisNsGFvNPXX1OuI26w2TUNC2u80wE6Q6a3aNu 74oUtZEaPhdFuB31A0rALC8Zb2zalnwwjAL7xRlyAozUuye8Ej7mE7w97WTjIfWz 7ZL19/+C1uawljzYLn+FJBIcl1wTyvOgx6T4TJlmOsa4OFnCreFx+a0Az6+Rx1GC XGsRyDkGPSabIbNVGxUCyTr4w+VpW1WlDjrjwyLC0DQTFW8wyP44W9/K2scp+CqJ bSCcAz8QtGAeZ5UlSmXYTOV69xXqZPaom7fVk5RFHoy24en5DSo7kj1NJ3ChupRD 8ACpALcIgw/VEo0Tyqqy3dyVhPDuYaZMY3WgGGj9Cz18U37e/Ho= =nK3D -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-6.18-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Paul Walmsley - Replacement of __ASSEMBLY__ with __ASSEMBLER__ in header files (other architectures have already merged this type of cleanup) - The introduction of ioremap_wc() for RISC-V - Cleanup of the RISC-V kprobes code to use mostly-extant macros rather than open code - A RISC-V kprobes unit test - An architecture-specific endianness swap macro set implementation, leveraging some dedicated RISC-V instructions for this purpose if they are available - The ability to identity and communicate to userspace the presence of a MIPS P8700-specific ISA extension, and to leverage its MIPS-specific PAUSE implementation in cpu_relax() - Several other miscellaneous cleanups * tag 'riscv-for-linus-6.18-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (39 commits) riscv: errata: Fix the PAUSE Opcode for MIPS P8700 riscv: hwprobe: Document MIPS xmipsexectl vendor extension riscv: hwprobe: Add MIPS vendor extension probing riscv: Add xmipsexectl instructions riscv: Add xmipsexectl as a vendor extension dt-bindings: riscv: Add xmipsexectl ISA extension description riscv: cpufeature: add validation for zfa, zfh and zfhmin perf: riscv: skip empty batches in counter start selftests: riscv: Add README for RISC-V KSelfTest riscv: sbi: Switch to new sys-off handler API riscv: Move vendor errata definitions to new header RISC-V: ACPI: enable parsing the BGRT table riscv: Enable ARCH_HAVE_NMI_SAFE_CMPXCHG riscv: pi: use 'targets' instead of extra-y in Makefile riscv: introduce asm/swab.h riscv: mmap(): use unsigned offset type in riscv_sys_mmap drivers/perf: riscv: Remove redundant ternary operators riscv: mm: Use mmu-type from FDT to limit SATP mode riscv: mm: Return intended SATP mode for noXlvl options riscv: kprobes: Remove duplication of RV_EXTRACT_ITYPE_IMM ... |
||
|
Linus Torvalds
|
feafee2845 |
arm64 updates for 6.18
Confidential computing:
- Add support for accepting secrets from firmware (e.g. ACPI CCEL)
and mapping them with appropriate attributes.
CPU features:
- Advertise atomic floating-point instructions to userspace.
- Extend Spectre workarounds to cover additional Arm CPU variants.
- Extend list of CPUs that support break-before-make level 2 and
guarantee not to generate TLB conflict aborts for changes of mapping
granularity (BBML2_NOABORT).
- Add GCS support to our uprobes implementation.
Documentation:
- Remove bogus SME documentation concerning register state when
entering/exiting streaming mode.
Entry code:
- Switch over to the generic IRQ entry code (GENERIC_IRQ_ENTRY).
- Micro-optimise syscall entry path with a compiler branch hint.
Memory management:
- Enable huge mappings in vmalloc space even when kernel page-table
dumping is enabled.
- Tidy up the types used in our early MMU setup code.
- Rework rodata= for closer parity with the behaviour on x86.
- For CPUs implementing BBML2_NOABORT, utilise block mappings in the
linear map even when rodata= applies to virtual aliases.
- Don't re-allocate the virtual region between '_text' and '_stext',
as doing so confused tools parsing /proc/vmcore.
Miscellaneous:
- Clean-up Kconfig menuconfig text for architecture features.
- Avoid redundant bitmap_empty() during determination of supported
SME vector lengths.
- Re-enable warnings when building the 32-bit vDSO object.
- Avoid breaking our eggs at the wrong end.
Perf and PMUs:
- Support for v3 of the Hisilicon L3C PMU.
- Support for Hisilicon's MN and NoC PMUs.
- Support for Fujitsu's Uncore PMU.
- Support for SPE's extended event filtering feature.
- Preparatory work to enable data source filtering in SPE.
- Support for multiple lanes in the DWC PCIe PMU.
- Support for i.MX94 in the IMX DDR PMU driver.
- MAINTAINERS update (Thank you, Yicong).
- Minor driver fixes (PERF_IDX2OFF() overflow, CMN register offsets).
Selftests:
- Add basic LSFE check to the existing hwcaps test.
- Support nolibc in GCS tests.
- Extend SVE ptrace test to pass unsupported regsets and invalid vector
lengths.
- Minor cleanups (typos, cosmetic changes).
System registers:
- Fix ID_PFR1_EL1 definition.
- Fix incorrect signedness of some fields in ID_AA64MMFR4_EL1.
- Sync TCR_EL1 definition with the latest Arm ARM (L.b).
- Be stricter about the input fed into our AWK sysreg generator script.
- Typo fixes and removal of redundant definitions.
ACPI, EFI and PSCI:
- Decouple Arm's "Software Delegated Exception Interface" (SDEI)
support from the ACPI GHES code so that it can be used by platforms
booted with device-tree.
- Remove unnecessary per-CPU tracking of the FPSIMD state across EFI
runtime calls.
- Fix a node refcount imbalance in the PSCI device-tree code.
CPU Features:
- Ensure register sanitisation is applied to fields in ID_AA64MMFR4.
- Expose AIDR_EL1 to userspace via sysfs, primarily so that KVM guests
can reliably query the underlying CPU types from the VMM.
- Re-enabling of SME support (CONFIG_ARM64_SME) as a result of fixes
to our context-switching, signal handling and ptrace code.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"There's good stuff across the board, including some nice mm
improvements for CPUs with the 'noabort' BBML2 feature and a clever
patch to allow ptdump to play nicely with block mappings in the
vmalloc area.
Confidential computing:
- Add support for accepting secrets from firmware (e.g. ACPI CCEL)
and mapping them with appropriate attributes.
CPU features:
- Advertise atomic floating-point instructions to userspace
- Extend Spectre workarounds to cover additional Arm CPU variants
- Extend list of CPUs that support break-before-make level 2 and
guarantee not to generate TLB conflict aborts for changes of
mapping granularity (BBML2_NOABORT)
- Add GCS support to our uprobes implementation.
Documentation:
- Remove bogus SME documentation concerning register state when
entering/exiting streaming mode.
Entry code:
- Switch over to the generic IRQ entry code (GENERIC_IRQ_ENTRY)
- Micro-optimise syscall entry path with a compiler branch hint.
Memory management:
- Enable huge mappings in vmalloc space even when kernel page-table
dumping is enabled
- Tidy up the types used in our early MMU setup code
- Rework rodata= for closer parity with the behaviour on x86
- For CPUs implementing BBML2_NOABORT, utilise block mappings in the
linear map even when rodata= applies to virtual aliases
- Don't re-allocate the virtual region between '_text' and '_stext',
as doing so confused tools parsing /proc/vmcore.
Miscellaneous:
- Clean-up Kconfig menuconfig text for architecture features
- Avoid redundant bitmap_empty() during determination of supported
SME vector lengths
- Re-enable warnings when building the 32-bit vDSO object
- Avoid breaking our eggs at the wrong end.
Perf and PMUs:
- Support for v3 of the Hisilicon L3C PMU
- Support for Hisilicon's MN and NoC PMUs
- Support for Fujitsu's Uncore PMU
- Support for SPE's extended event filtering feature
- Preparatory work to enable data source filtering in SPE
- Support for multiple lanes in the DWC PCIe PMU
- Support for i.MX94 in the IMX DDR PMU driver
- MAINTAINERS update (Thank you, Yicong)
- Minor driver fixes (PERF_IDX2OFF() overflow, CMN register offsets).
Selftests:
- Add basic LSFE check to the existing hwcaps test
- Support nolibc in GCS tests
- Extend SVE ptrace test to pass unsupported regsets and invalid
vector lengths
- Minor cleanups (typos, cosmetic changes).
System registers:
- Fix ID_PFR1_EL1 definition
- Fix incorrect signedness of some fields in ID_AA64MMFR4_EL1
- Sync TCR_EL1 definition with the latest Arm ARM (L.b)
- Be stricter about the input fed into our AWK sysreg generator
script
- Typo fixes and removal of redundant definitions.
ACPI, EFI and PSCI:
- Decouple Arm's "Software Delegated Exception Interface" (SDEI)
support from the ACPI GHES code so that it can be used by platforms
booted with device-tree
- Remove unnecessary per-CPU tracking of the FPSIMD state across EFI
runtime calls
- Fix a node refcount imbalance in the PSCI device-tree code.
CPU Features:
- Ensure register sanitisation is applied to fields in ID_AA64MMFR4
- Expose AIDR_EL1 to userspace via sysfs, primarily so that KVM
guests can reliably query the underlying CPU types from the VMM
- Re-enabling of SME support (CONFIG_ARM64_SME) as a result of fixes
to our context-switching, signal handling and ptrace code"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (93 commits)
arm64: cpufeature: Remove duplicate asm/mmu.h header
arm64: Kconfig: Make CPU_BIG_ENDIAN depend on BROKEN
perf/dwc_pcie: Fix use of uninitialized variable
arm/syscalls: mark syscall invocation as likely in invoke_syscall
Documentation: hisi-pmu: Add introduction to HiSilicon V3 PMU
Documentation: hisi-pmu: Fix of minor format error
drivers/perf: hisi: Add support for L3C PMU v3
drivers/perf: hisi: Refactor the event configuration of L3C PMU
drivers/perf: hisi: Extend the field of tt_core
drivers/perf: hisi: Extract the event filter check of L3C PMU
drivers/perf: hisi: Simplify the probe process of each L3C PMU version
drivers/perf: hisi: Export hisi_uncore_pmu_isr()
drivers/perf: hisi: Relax the event ID check in the framework
perf: Fujitsu: Add the Uncore PMU driver
arm64: map [_text, _stext) virtual address range non-executable+read-only
arm64/sysreg: Update TCR_EL1 register
arm64: Enable vmalloc-huge with ptdump
arm64: cpufeature: add Neoverse-V3AE to BBML2 allow list
arm64: errata: Apply workarounds for Neoverse-V3AE
arm64: cputype: Add Neoverse-V3AE definitions
...
|
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|
Kuniyuki Iwashima
|
9b62d53cc8 |
selftest: packetdrill: Import client-ack-dropped-then-recovery-ms-timestamps.pkt
This also does not have the non-experimental version, so converted to FO. The comment in .pkt explains the detailed scenario. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250927213022.1850048-14-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Kuniyuki Iwashima
|
05b9f505fb |
selftest: packetdrill: Import sockopt-fastopen-key.pkt
sockopt-fastopen-key.pkt does not have the non-experimental version, so the Experimental version is converted, FOEXP -> FO. The test sets net.ipv4.tcp_fastopen_key=0-0-0-0 and instead sets another key via setsockopt(TCP_FASTOPEN_KEY). The first listener generates a valid cookie in response to TFO option without cookie, and the second listner creates a TFO socket using the valid cookie. TCP_FASTOPEN_KEY is adjusted to use the common key in default.sh so that we can use TFO_COOKIE and support dualstack. Similarly, TFO_COOKIE_ZERO for the 0-0-0-0 key is defined. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250927213022.1850048-13-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Kuniyuki Iwashima
|
be90c7b3d5 |
selftest: packetdrill: Refine tcp_fastopen_server_reset-after-disconnect.pkt.
These changes are applied to follow the imported packetdrill tests. * Call setsockopt(TCP_FASTOPEN) * Remove unnecessary accept() delay * Add assertion for TCP states * Rename to tcp_fastopen_server_trigger-rst-reconnect.pkt. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250927213022.1850048-12-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Kuniyuki Iwashima
|
21f7fb31ae |
selftest: packetdrill: Import opt34/*-trigger-rst.pkt.
This imports the non-experimental version of opt34/*-trigger-rst.pkt.
| accept() | SYN data |
-----------------------------------+----------+----------+
listener-closed-trigger-rst.pkt | no | unread |
unread-data-closed-trigger-rst.pkt | yes | unread |
Both files test that close()ing a SYN_RECV socket with unread SYN data
triggers RST.
The files are renamed to have the common prefix, trigger-rst.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250927213022.1850048-11-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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|
Kuniyuki Iwashima
|
5920f154e1 |
selftest: packetdrill: Import opt34/reset-* tests.
This imports the non-experimental version of opt34/reset-*.pkt.
| Child | RST | sk_err |
---------------------------------+---------+-------------------------------+---------+
reset-after-accept.pkt | TFO | after accept(), SYN_RECV | read() |
reset-close-with-unread-data.pkt | TFO | after accept(), SYN_RECV | write() |
reset-before-accept.pkt | TFO | before accept(), SYN_RECV | read() |
reset-non-tfo-socket.pkt | non-TFO | before accept(), ESTABLISHED | write() |
The first 3 files test scenarios where a SYN_RECV socket receives RST
before/after accept() and data in SYN must be read() without error,
but the following read() or fist write() will return ECONNRESET.
The last test is similar but with non-TFO socket.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250927213022.1850048-10-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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|
Kuniyuki Iwashima
|
a8b1750e68 |
selftest: packetdrill: Import opt34/icmp-before-accept.pkt.
This imports the non-experimental version of icmp-before-accept.pkt. This file tests the scenario where an ICMP unreachable packet for a not-yet-accept()ed socket changes its state to TCP_CLOSE, but the SYN data must be read without error, and the following read() returns EHOSTUNREACH. Note that this test support only IPv4 as icmp is used. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250927213022.1850048-9-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Kuniyuki Iwashima
|
5ed080f85a |
selftest: packetdrill: Import opt34/fin-close-socket.pkt.
This imports the non-experimental version of fin-close-socket.pkt. This file tests the scenario where a TFO child socket's state transitions from SYN_RECV to CLOSE_WAIT before accept()ed. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250927213022.1850048-8-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Kuniyuki Iwashima
|
e57b3933ab |
selftest: packetdrill: Add test for experimental option.
The only difference between non-experimental vs experimental TFO option handling is SYN+ACK generation. When tcp_parse_fastopen_option() parses a TFO option, it sets tcp_fastopen_cookie.exp to false if the option number is 34, and true if 255. The value is carried to tcp_options_write() to generate a TFO option with the same option number. Other than that, all the TFO handling is the same and the kernel must generate the same cookie regardless of the option number. Let's add a test for the handling so that we can consolidate fastopen/server/ tests and fastopen/server/opt34 tests. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250927213022.1850048-7-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Kuniyuki Iwashima
|
399e0a7ed9 |
selftest: packetdrill: Add test for TFO_SERVER_WO_SOCKOPT1.
TFO_SERVER_WO_SOCKOPT1 is no longer enabled by default, and each server test requires setsockopt(TCP_FASTOPEN). Let's add a basic test for TFO_SERVER_WO_SOCKOPT1. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250927213022.1850048-6-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Kuniyuki Iwashima
|
0b8f164eb2 |
selftest: packetdrill: Import TFO server basic tests.
This imports basic TFO server tests from google/packetdrill.
The repository has two versions of tests for most scenarios; one uses
the non-experimental option (34), and the other uses the experimental
option (255) with 0xF989.
This only imports the following tests of the non-experimental version
placed in [0]. I will add a specific test for the experimental option
handling later.
| TFO | Cookie | Payload |
---------------------------+-----+--------+---------+
basic-rw.pkt | yes | yes | yes |
basic-zero-payload.pkt | yes | yes | no |
basic-cookie-not-reqd.pkt | yes | no | yes |
basic-non-tfo-listener.pkt | no | yes | yes |
pure-syn-data.pkt | yes | no | yes |
The original pure-syn-data.pkt missed setsockopt(TCP_FASTOPEN) and did
not test TFO server in some scenarios unintentionally, so setsockopt()
is added where needed. In addition, non-TFO scenario is stripped as
it is covered by basic-non-tfo-listener.pkt. Also, I added basic- prefix.
Link: https://github.com/google/packetdrill/tree/bfc96251310f/gtests/net/tcp/fastopen/server/opt34 #[0]
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250927213022.1850048-5-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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|
Kuniyuki Iwashima
|
97b3b8306f |
selftest: packetdrill: Define common TCP Fast Open cookie.
TCP Fast Open cookie is generated in __tcp_fastopen_cookie_gen_cipher(). The cookie value is generated from src/dst IPs and a key configured by setsockopt(TCP_FASTOPEN_KEY) or net.ipv4.tcp_fastopen_key. The default.sh sets net.ipv4.tcp_fastopen_key, and the original packetdrill defines the corresponding cookie as TFO_COOKIE in run_all.py. [0] Then, each test does not need to care about the value, and we can easily update TFO_COOKIE in case __tcp_fastopen_cookie_gen_cipher() changes the algorithm. However, some tests use the bare hex value for specific IPv4 addresses and do not support IPv6. Let's define the same TFO_COOKIE in ksft_runner.sh. We will replace such bare hex values with TFO_COOKIE except for a single test for setsockopt(TCP_FASTOPEN_KEY). Link: https://github.com/google/packetdrill/blob/7230b3990f94/gtests/net/packetdrill/run_all.py#L65 #[0] Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250927213022.1850048-4-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Kuniyuki Iwashima
|
261cb8b123 |
selftest: packetdrill: Require explicit setsockopt(TCP_FASTOPEN).
To enable TCP Fast Open on a server, net.ipv4.tcp_fastopen must have 0x2 (TFO_SERVER_ENABLE), and we need to do either 1. Call setsockopt(TCP_FASTOPEN) for the socket 2. Set 0x400 (TFO_SERVER_WO_SOCKOPT1) additionally to net.ipv4.tcp_fastopen The default.sh sets 0x70403 so that each test does not need setsockopt(). (0x1 is TFO_CLIENT_ENABLE, and 0x70000 is ...???) However, some tests overwrite net.ipv4.tcp_fastopen without TFO_SERVER_WO_SOCKOPT1 and forgot setsockopt(TCP_FASTOPEN). For example, pure-syn-data.pkt [0] tests non-TFO servers unintentionally, except in the first scenario. To prevent such an accident, let's require explicit setsockopt(). TFO_CLIENT_ENABLE is necessary for tcp_syscall_bad_arg_fastopen-invalid-buf-ptr.pkt. Link: https://github.com/google/packetdrill/blob/bfc96251310f/gtests/net/tcp/fastopen/server/opt34/pure-syn-data.pkt #[0] Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250927213022.1850048-3-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Kuniyuki Iwashima
|
70dd4775db |
selftest: packetdrill: Set ktap_set_plan properly for single protocol test.
The cited commit forgot to update the ktap_set_plan call.
ktap_set_plan sets the number of tests (KSFT_NUM_TESTS), which must
match the number of executed tests (KTAP_CNT_PASS + KTAP_CNT_SKIP +
KTAP_CNT_XFAIL) in ktap_finished.
Otherwise, the selftest exit()s with 1.
Let's adjust KSFT_NUM_TESTS based on supported protocols.
While at it, misalignment is fixed up.
Fixes:
|
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|
Matthieu Baerts (NGI0)
|
c912f935a5 |
selftests: mptcp: join: validate new laminar endp
Here are a few sub-tests for mptcp_join.sh, validating the new 'laminar' endpoint type. In a setup where subflows created using the routing rules would be rejected by the listener, and where the latter announces one IP address, some cases are verified: - Without any 'laminar' endpoints: no new subflows are created. - With one 'laminar' endpoint: a second subflow is created. - With multiple 'laminar' endpoints: 2 IPv4 subflows are created. - With one 'laminar' endpoint, but the server announcing a second IP address, only one subflow is created. - With one 'laminar' + 'subflow' endpoint, the same endpoint is only used once. Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250927-net-next-mptcp-rcv-path-imp-v1-8-5da266aa9c1a@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Linus Torvalds
|
a5ba183bde |
hardening updates for v6.18-rc1
- Clean up usage of TRAILING_OVERLAP() (Gustavo A. R. Silva)
- lkdtm: fortify: Fix potential NULL dereference on kmalloc failure
(Junjie Cao)
- Add str_assert_deassert() helper (Lad Prabhakar)
- gcc-plugins: Remove TODO_verify_il for GCC >= 16
- kconfig: Fix BrokenPipeError warnings in selftests
- kconfig: Add transitional symbol attribute for migration support
- kcfi: Rename CONFIG_CFI_CLANG to CONFIG_CFI
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Merge tag 'hardening-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening updates from Kees Cook:
"One notable addition is the creation of the 'transitional' keyword for
kconfig so CONFIG renaming can go more smoothly.
This has been a long-standing deficiency, and with the renaming of
CONFIG_CFI_CLANG to CONFIG_CFI (since GCC will soon have KCFI
support), this came up again.
The breadth of the diffstat is mainly this renaming.
- Clean up usage of TRAILING_OVERLAP() (Gustavo A. R. Silva)
- lkdtm: fortify: Fix potential NULL dereference on kmalloc failure
(Junjie Cao)
- Add str_assert_deassert() helper (Lad Prabhakar)
- gcc-plugins: Remove TODO_verify_il for GCC >= 16
- kconfig: Fix BrokenPipeError warnings in selftests
- kconfig: Add transitional symbol attribute for migration support
- kcfi: Rename CONFIG_CFI_CLANG to CONFIG_CFI"
* tag 'hardening-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
lib/string_choices: Add str_assert_deassert() helper
kcfi: Rename CONFIG_CFI_CLANG to CONFIG_CFI
kconfig: Add transitional symbol attribute for migration support
kconfig: Fix BrokenPipeError warnings in selftests
gcc-plugins: Remove TODO_verify_il for GCC >= 16
stddef: Introduce __TRAILING_OVERLAP()
stddef: Remove token-pasting in TRAILING_OVERLAP()
lkdtm: fortify: Fix potential NULL dereference on kmalloc failure
|
||
|
Linus Torvalds
|
a240a79d43 |
seccomp updates for v6.18-rc1
- Fix race with WAIT_KILLABLE_RECV (Johannes Nixdorf) -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRSPkdeREjth1dHnSE2KwveOeQkuwUCaNrY3wAKCRA2KwveOeQk u5vmAP9pH7LAt7zTWgleIxWPYuUvELS+zB9oK9EukyTZNbAVoAD8Do5ZpFP51Llk a6mxvmi808aYytROWM5c8O4tk5CFDQQ= =Vkfy -----END PGP SIGNATURE----- Merge tag 'seccomp-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp update from Kees Cook: - Fix race with WAIT_KILLABLE_RECV (Johannes Nixdorf) * tag 'seccomp-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: selftests/seccomp: Add a test for the WAIT_KILLABLE_RECV fast reply race seccomp: Fix a race with WAIT_KILLABLE_RECV if the tracer replies too fast |
||
|
Linus Torvalds
|
18b19abc37 |
namespace-6.18-rc1
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaNZQgQAKCRCRxhvAZXjc oiFXAQCpbLvkWbld9wLgxUBhq+q+kw5NvGxzpvqIhXwJB9F9YAEA44/Wevln4xGx +kRUbP+xlRQqenIYs2dLzVHzAwAdfQ4= =EO4Y -----END PGP SIGNATURE----- Merge tag 'namespace-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull namespace updates from Christian Brauner: "This contains a larger set of changes around the generic namespace infrastructure of the kernel. Each specific namespace type (net, cgroup, mnt, ...) embedds a struct ns_common which carries the reference count of the namespace and so on. We open-coded and cargo-culted so many quirks for each namespace type that it just wasn't scalable anymore. So given there's a bunch of new changes coming in that area I've started cleaning all of this up. The core change is to make it possible to correctly initialize every namespace uniformly and derive the correct initialization settings from the type of the namespace such as namespace operations, namespace type and so on. This leaves the new ns_common_init() function with a single parameter which is the specific namespace type which derives the correct parameters statically. This also means the compiler will yell as soon as someone does something remotely fishy. The ns_common_init() addition also allows us to remove ns_alloc_inum() and drops any special-casing of the initial network namespace in the network namespace initialization code that Linus complained about. Another part is reworking the reference counting. The reference counting was open-coded and copy-pasted for each namespace type even though they all followed the same rules. This also removes all open accesses to the reference count and makes it private and only uses a very small set of dedicated helpers to manipulate them just like we do for e.g., files. In addition this generalizes the mount namespace iteration infrastructure introduced a few cycles ago. As reminder, the vfs makes it possible to iterate sequentially and bidirectionally through all mount namespaces on the system or all mount namespaces that the caller holds privilege over. This allow userspace to iterate over all mounts in all mount namespaces using the listmount() and statmount() system call. Each mount namespace has a unique identifier for the lifetime of the systems that is exposed to userspace. The network namespace also has a unique identifier working exactly the same way. This extends the concept to all other namespace types. The new nstree type makes it possible to lookup namespaces purely by their identifier and to walk the namespace list sequentially and bidirectionally for all namespace types, allowing userspace to iterate through all namespaces. Looking up namespaces in the namespace tree works completely locklessly. This also means we can move the mount namespace onto the generic infrastructure and remove a bunch of code and members from struct mnt_namespace itself. There's a bunch of stuff coming on top of this in the future but for now this uses the generic namespace tree to extend a concept introduced first for pidfs a few cycles ago. For a while now we have supported pidfs file handles for pidfds. This has proven to be very useful. This extends the concept to cover namespaces as well. It is possible to encode and decode namespace file handles using the common name_to_handle_at() and open_by_handle_at() apis. As with pidfs file handles, namespace file handles are exhaustive, meaning it is not required to actually hold a reference to nsfs in able to decode aka open_by_handle_at() a namespace file handle. Instead the FD_NSFS_ROOT constant can be passed which will let the kernel grab a reference to the root of nsfs internally and thus decode the file handle. Namespaces file descriptors can already be derived from pidfds which means they aren't subject to overmount protection bugs. IOW, it's irrelevant if the caller would not have access to an appropriate /proc/<pid>/ns/ directory as they could always just derive the namespace based on a pidfd already. It has the same advantage as pidfds. It's possible to reliably and for the lifetime of the system refer to a namespace without pinning any resources and to compare them trivially. Permission checking is kept simple. If the caller is located in the namespace the file handle refers to they are able to open it otherwise they must hold privilege over the owning namespace of the relevant namespace. The namespace file handle layout is exposed as uapi and has a stable and extensible format. For now it simply contains the namespace identifier, the namespace type, and the inode number. The stable format means that userspace may construct its own namespace file handles without going through name_to_handle_at() as they are already allowed for pidfs and cgroup file handles" * tag 'namespace-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (65 commits) ns: drop assert ns: move ns type into struct ns_common nstree: make struct ns_tree private ns: add ns_debug() ns: simplify ns_common_init() further cgroup: add missing ns_common include ns: use inode initializer for initial namespaces selftests/namespaces: verify initial namespace inode numbers ns: rename to __ns_ref nsfs: port to ns_ref_*() helpers net: port to ns_ref_*() helpers uts: port to ns_ref_*() helpers ipv4: use check_net() net: use check_net() net-sysfs: use check_net() user: port to ns_ref_*() helpers time: port to ns_ref_*() helpers pid: port to ns_ref_*() helpers ipc: port to ns_ref_*() helpers cgroup: port to ns_ref_*() helpers ... |
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|
Linus Torvalds
|
3a2a5b278f |
vfs-6.18-rc1.mount
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Merge tag 'vfs-6.18-rc1.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs mount updates from Christian Brauner:
"This contains some work around mount api handling:
- Output the warning message for mnt_too_revealing() triggered during
fsmount() to the fscontext log. This makes it possible for the
mount tool to output appropriate warnings on the command line.
For example, with the newest fsopen()-based mount(8) from
util-linux, the error messages now look like:
# mount -t proc proc /tmp
mount: /tmp: fsmount() failed: VFS: Mount too revealing.
dmesg(1) may have more information after failed mount system call.
- Do not consume fscontext log entries when returning -EMSGSIZE
Userspace generally expects APIs that return -EMSGSIZE to allow for
them to adjust their buffer size and retry the operation.
However, the fscontext log would previously clear the message even
in the -EMSGSIZE case.
Given that it is very cheap for us to check whether the buffer is
too small before we remove the message from the ring buffer, let's
just do that instead.
- Drop an unused argument from do_remount()"
* tag 'vfs-6.18-rc1.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
vfs: fs/namespace.c: remove ms_flags argument from do_remount
selftests/filesystems: add basic fscontext log tests
fscontext: do not consume log entries when returning -EMSGSIZE
vfs: output mount_too_revealing() errors to fscontext
docs/vfs: Remove mentions to the old mount API helpers
fscontext: add custom-prefix log helpers
fs: Remove mount_bdev
fs: Remove mount_nodev
|
||
|
Linus Torvalds
|
b7ce6fa90f |
vfs-6.18-rc1.misc
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Merge tag 'vfs-6.18-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"This contains the usual selections of misc updates for this cycle.
Features:
- Add "initramfs_options" parameter to set initramfs mount options.
This allows to add specific mount options to the rootfs to e.g.,
limit the memory size
- Add RWF_NOSIGNAL flag for pwritev2()
Add RWF_NOSIGNAL flag for pwritev2. This flag prevents the SIGPIPE
signal from being raised when writing on disconnected pipes or
sockets. The flag is handled directly by the pipe filesystem and
converted to the existing MSG_NOSIGNAL flag for sockets
- Allow to pass pid namespace as procfs mount option
Ever since the introduction of pid namespaces, procfs has had very
implicit behaviour surrounding them (the pidns used by a procfs
mount is auto-selected based on the mounting process's active
pidns, and the pidns itself is basically hidden once the mount has
been constructed)
This implicit behaviour has historically meant that userspace was
required to do some special dances in order to configure the pidns
of a procfs mount as desired. Examples include:
* In order to bypass the mnt_too_revealing() check, Kubernetes
creates a procfs mount from an empty pidns so that user
namespaced containers can be nested (without this, the nested
containers would fail to mount procfs)
But this requires forking off a helper process because you cannot
just one-shot this using mount(2)
* Container runtimes in general need to fork into a container
before configuring its mounts, which can lead to security issues
in the case of shared-pidns containers (a privileged process in
the pidns can interact with your container runtime process)
While SUID_DUMP_DISABLE and user namespaces make this less of an
issue, the strict need for this due to a minor uAPI wart is kind
of unfortunate
Things would be much easier if there was a way for userspace to
just specify the pidns they want. So this pull request contains
changes to implement a new "pidns" argument which can be set
using fsconfig(2):
fsconfig(procfd, FSCONFIG_SET_FD, "pidns", NULL, nsfd);
fsconfig(procfd, FSCONFIG_SET_STRING, "pidns", "/proc/self/ns/pid", 0);
or classic mount(2) / mount(8):
// mount -t proc -o pidns=/proc/self/ns/pid proc /tmp/proc
mount("proc", "/tmp/proc", "proc", MS_..., "pidns=/proc/self/ns/pid");
Cleanups:
- Remove the last references to EXPORT_OP_ASYNC_LOCK
- Make file_remove_privs_flags() static
- Remove redundant __GFP_NOWARN when GFP_NOWAIT is used
- Use try_cmpxchg() in start_dir_add()
- Use try_cmpxchg() in sb_init_done_wq()
- Replace offsetof() with struct_size() in ioctl_file_dedupe_range()
- Remove vfs_ioctl() export
- Replace rwlock() with spinlock in epoll code as rwlock causes
priority inversion on preempt rt kernels
- Make ns_entries in fs/proc/namespaces const
- Use a switch() statement() in init_special_inode() just like we do
in may_open()
- Use struct_size() in dir_add() in the initramfs code
- Use str_plural() in rd_load_image()
- Replace strcpy() with strscpy() in find_link()
- Rename generic_delete_inode() to inode_just_drop() and
generic_drop_inode() to inode_generic_drop()
- Remove unused arguments from fcntl_{g,s}et_rw_hint()
Fixes:
- Document @name parameter for name_contains_dotdot() helper
- Fix spelling mistake
- Always return zero from replace_fd() instead of the file descriptor
number
- Limit the size for copy_file_range() in compat mode to prevent a
signed overflow
- Fix debugfs mount options not being applied
- Verify the inode mode when loading it from disk in minixfs
- Verify the inode mode when loading it from disk in cramfs
- Don't trigger automounts with RESOLVE_NO_XDEV
If openat2() was called with RESOLVE_NO_XDEV it didn't traverse
through automounts, but could still trigger them
- Add FL_RECLAIM flag to show_fl_flags() macro so it appears in
tracepoints
- Fix unused variable warning in rd_load_image() on s390
- Make INITRAMFS_PRESERVE_MTIME depend on BLK_DEV_INITRD
- Use ns_capable_noaudit() when determining net sysctl permissions
- Don't call path_put() under namespace semaphore in listmount() and
statmount()"
* tag 'vfs-6.18-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (38 commits)
fcntl: trim arguments
listmount: don't call path_put() under namespace semaphore
statmount: don't call path_put() under namespace semaphore
pid: use ns_capable_noaudit() when determining net sysctl permissions
fs: rename generic_delete_inode() and generic_drop_inode()
init: INITRAMFS_PRESERVE_MTIME should depend on BLK_DEV_INITRD
initramfs: Replace strcpy() with strscpy() in find_link()
initrd: Use str_plural() in rd_load_image()
initramfs: Use struct_size() helper to improve dir_add()
initrd: Fix unused variable warning in rd_load_image() on s390
fs: use the switch statement in init_special_inode()
fs/proc/namespaces: make ns_entries const
filelock: add FL_RECLAIM to show_fl_flags() macro
eventpoll: Replace rwlock with spinlock
selftests/proc: add tests for new pidns APIs
procfs: add "pidns" mount option
pidns: move is-ancestor logic to helper
openat2: don't trigger automounts with RESOLVE_NO_XDEV
namei: move cross-device check to __traverse_mounts
namei: remove LOOKUP_NO_XDEV check from handle_mounts
...
|
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|
Rafael J. Wysocki
|
ab80f7707d |
Merge branch 'acpica'
Merge ACPICA updates (20250807 release material with a few fixes on top) for 6.18-rc1: - Add SoundWire File Table (SWFT) signature to ACPICA (Maciej Strozek) - Rearrange local variable definition involving #ifdef in ACPICA to avoid using uninitialized variables (Zhe Qiao) - Allow ACPICA to skip Global Lock initialization (Huacai Chen) - Apply ACPI_NONSTRING in more places in ACPICA and fix two regressions related to incorrect ACPI_NONSTRING usage (Ahmed Salem) - Fix printing CDAT table header when dissasebling CDAT AML (Ahmed Salem) - Use acpi_ds_clear_operands() in acpi_ds_call_control_method() in ACPICA (Hans de Goede) - Update dsmethod.c in ACPICA to address unused variable warning (Saket Dumbre) - Print error messages in ACPICA for too few or too many control method arguments (Saket Dumbre) - Update ACPICA version to 20250807 (Saket Dumbre) - Fix largest possible resource descriptor index in ACPICA (Dmitry Antipov) - Add Back-Invalidate restriction to CXL Window for CEDT in ACPICA (Davidlohr Bueso). - Add the package type to acceptable Arg3 types for _DSM in ACPICA because ACPI_TYPE_ANY does not cover it (Saket Dumbre) - Fix return values in ap_is_valid_checksum() in the acpidump utility in ACPICA (Kaushlendra Kumar) * acpica: ACPICA: acpidump: fix return values in ap_is_valid_checksum() ACPICA: ACPI_TYPE_ANY does not include the package type ACPICA: CEDT: Add Back-Invalidate restriction to CXL Window ACPICA: Fix largest possible resource descriptor index ACPICA: Update version to 20250807 ACPICA: Print error messages for too few or too many arguments ACPICA: Update dsmethod.c to get rid of unused variable warning ACPICA: dispatcher: Use acpi_ds_clear_operands() in acpi_ds_call_control_method() ACPICA: Debugger: drop ACPI_NONSTRING attribute from name_seg ACPICA: acpidump: drop ACPI_NONSTRING attribute from file_name ACPICA: iASL: Fix printing CDAT table header ACPICA: Apply ACPI_NONSTRING ACPICA: Allow to skip Global Lock initialization ACPICA: Change the compilation conditions ACPICA: Remove redundant "#ifdef" definitions ACPICA: Modify variable definition position ACPICA: Add SoundWire File Table (SWFT) signature |
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Rafael J. Wysocki
|
40d2cf9c3c |
Merge branch 'pm-tools'
Merge power management utilities updates for 6.18-rc1: - Fix and clean up the x86_energy_perf_policy utility and update its documentation (Len Brown, Kaushlendra Kumar) - Fix incorrect sorting of PMT telemetry in turbostat (Kaushlendra Kumar) - Fix incorrect size in cpuidle_state_disable() and the error return value of cpupower_write_sysfs() in cpupower (Kaushlendra Kumar) * pm-tools: tools/power x86_energy_perf_policy.8: Emphasize preference for SW interfaces tools/power x86_energy_perf_policy: Add make snapshot target tools/power x86_energy_perf_policy: Prefer driver HWP limits tools/power x86_energy_perf_policy: EPB access is only via sysfs tools/power x86_energy_perf_policy: Prepare for MSR/sysfs refactoring tools/power x86_energy_perf_policy: Enhance HWP enable tools/power x86_energy_perf_policy: Enhance HWP enabled check tools/power x86_energy_perf_policy: Fix incorrect fopen mode usage tools/power turbostat: Fix incorrect sorting of PMT telemetry tools/cpupower: Fix incorrect size in cpuidle_state_disable() tools/cpupower: fix error return value in cpupower_write_sysfs() |
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|
Rafael J. Wysocki
|
17eb881291 |
linux-cpupower-6.18-rc1
Fixes incorrect return vale in cpupower_write_sysfs() error path and passing incorrect size to cpuidle_state_write_file() while writing status to disable file in cpuidle_state_disable(). -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmjZm4IACgkQCwJExA0N QxwfRhAAy2ZRWq6U9zhGEeEhlm8/gAg0mtXe9SJaQFNHII9GMBfetJkBGGIszXMc 1CTk6fbIdnzleLOriZy6K26g4gNY269zDvei+1HnLRJAdsu57VOCqVUm5Fv6J+s6 QyJnpe1UadqIPnQu3kWvc/JtLYVGmfn5ezvW912bFpf7Qq1mat6aP0t5G5PrnK+m Zv5r8g0ia2h4j17+FfG198H6QHAqw/jxrbtB4rTObc/BlUor5VxlBUs0NgSi3CCD 5S/hk8q1kIvpAv8UQ6z6Mcxj43Pnp4zMu2uz4oQNT6SDhpjI5kja1Y9vh4ZwYRMT CHqWmILU5d1wgULIMQBHisJFUPuW+/LrOA7vMFRaVUOKJr6aIlHWVo2IWzRvvw1q T/TqqRm5b+ifbM6MK2ktsYyn6jIb8PXpZ6gLkf1QHBz99ijpWuIkuVhNNM5FmHor m7LlLp5EwA08UXz4l6OM5XovX1O3nwSt/TQek4XokAIvddKw6G2tTt0qy6Gp/cwl NFrh+TsybAKfwLOFaRRSQ21AzYkuF2TYyjjJtGgITvcf/H7k+E4lf3oxbgj6K0hf D4NSN37UukooCdzms4/0AEwBXyfuqhajqcJW2VgaWM27TAqyY+NSgnSlALNcb9ev SNFLRIDZjEc8SGrd8yNftVtpsrX0k7pHzrquLD+E1+vy1XzUGLA= =1VZt -----END PGP SIGNATURE----- Merge tag 'linux-cpupower-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux Merge cpupower utility updates for 6.18-rc1 from Shuah Khan: "Fixes incorrect return vale in cpupower_write_sysfs() error path and passing incorrect size to cpuidle_state_write_file() while writing status to disable file in cpuidle_state_disable()." * tag 'linux-cpupower-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux: (1125 commits) tools/cpupower: Fix incorrect size in cpuidle_state_disable() tools/cpupower: fix error return value in cpupower_write_sysfs() Linux 6.17-rc6 MAINTAINERS: Input: Drop melfas-mip4 section USB: core: remove the move buf action MAINTAINERS: Update the DMA Rust entry erofs: fix long xattr name prefix placement Revert "net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups" hsr: hold rcu and dev lock for hsr_get_port_ndev hsr: use hsr_for_each_port_rtnl in hsr_port_get_hsr hsr: use rtnl lock when iterating over ports wifi: nl80211: completely disable per-link stats for now net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups net: ethtool: fix wrong type used in struct kernel_ethtool_ts_info selftests/bpf: Skip timer cases when bpf_timer is not supported bpf: Reject bpf_timer for PREEMPT_RT libceph: fix invalid accesses to ceph_connection_v1_info PM: hibernate: Restrict GFP mask in hibernation_snapshot() MAINTAINERS: add Phil as netfilter reviewer netfilter: nf_tables: restart set lookup on base_seq change ... |
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|
Liam R. Howlett
|
6bf377b06c |
maple_tree: Add single node allocation support to maple state
The fast path through a write will require replacing a single node in the tree. Using a sheaf (32 nodes) is too heavy for the fast path, so special case the node store operation by just allocating one node in the maple state. Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> |
||
|
Liam R. Howlett
|
9b05890a25 |
maple_tree: Prefilled sheaf conversion and testing
Use prefilled sheaves instead of bulk allocations. This should speed up the allocations and the return path of unused allocations. Remove the push and pop of nodes from the maple state as this is now handled by the slab layer with sheaves. Testing has been removed as necessary since the features of the tree have been reduced. Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> Reviewed-by: Suren Baghdasaryan <surenb@google.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> |
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|
Liam R. Howlett
|
fdbebab19f |
tools/testing: Add support for prefilled slab sheafs
Add the prefilled sheaf structs to the slab header and the associated functions to the testing/shared/linux.c file. Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> Reviewed-by: Suren Baghdasaryan <surenb@google.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> |
||
|
Liam R. Howlett
|
551a6e757a |
testing/radix-tree/maple: Hack around kfree_rcu not existing
liburcu doesn't have kfree_rcu (or anything similar). Despite that, we can hack around it in a trivial fashion, by adding a wrapper. The wrapper only works for maple_nodes because we cannot get the kmem_cache pointer any other way in the test code. Link: https://lore.kernel.org/all/20250812162124.59417-1-pfalcato@suse.de/ Suggested-by: Pedro Falcato <pfalcato@suse.de> Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> Reviewed-by: Suren Baghdasaryan <surenb@google.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> |
||
|
Vlastimil Babka
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9f910f7d3d |
tools/testing: include maple-shim.c in maple.c
There's some duplicated code and we are about to add more functionality in maple-shared.h that we will need in the userspace maple test to be available, so include it via maple-shim.c Co-developed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> Reviewed-by: Suren Baghdasaryan <surenb@google.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> |
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Liam R. Howlett
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c4fb7f0a79 |
tools/testing: Add support for changes to slab for sheaves
The slab changes for sheaves requires more effort in the testing code. Unite all the kmem_cache work into the tools/include slab header for both the vma and maple tree testing. The vma test code also requires importing more #defines to allow for seamless use of the shared kmem_cache code. This adds the pthread header to the slab header in the tools directory to allow for the pthread_mutex in linux.c. Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> Reviewed-by: Suren Baghdasaryan <surenb@google.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> |
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Liam R. Howlett
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d09a61a3aa |
tools/testing/vma: Implement vm_refcnt reset
Add the reset of the ref count in vma_lock_init(). This is needed if the vma memory is not zeroed on allocation. Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> Reviewed-by: Suren Baghdasaryan <surenb@google.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> |
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Liam R. Howlett
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e3852a1213 |
maple_tree: Drop bulk insert support
Bulk insert mode was added to facilitate forking faster, but forking now uses __mt_dup() to duplicate the tree. The addition of sheaves has made the bulk allocations difficult to maintain - since the expected entries would preallocate into the maple state. A big part of the maple state node allocation was the ability to push nodes back onto the state for later use, which was essential to the bulk insert algorithm. Remove mas_expected_entries() and mas_destroy_rebalance() functions as well as the MA_STATE_BULK and MA_STATE_REBALANCE maple state flags since there are no users anymore. Drop the associated testing as well. Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> Reviewed-by: Suren Baghdasaryan <surenb@google.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> |
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Lorenzo Stoakes
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da577f1fcb |
tools/testing/vma: clean up stubs in vma_internal.h
We do not need to references arguments just to avoid compiler warnings, the warning in question does not arise here, so remove all of the instances of '(void)xxx' introduced purely to avoid this warning. As reported by WagYuli in the referenced mail, GCC 8.3 and before will have issues compiling this file if parameter names are not provided, so ensure these are always provided. Finally, perform a trivial fix up of kmem_cache_alloc() which technically has parameters in the incorrect order (as reported by Vlastimil Babka off-list). Link: https://lkml.kernel.org/r/20250826102824.22730-1-lorenzo.stoakes@oracle.com Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Reported-by: WangYuli <wangyuli@uniontech.com> Closes: https://lore.kernel.org/linux-mm/EFCEBE7E301589DE+20250729084700.208767-1-wangyuli@uniontech.com/ Reported-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Cc: Jann Horn <jannh@google.com> Cc: WangYuli <wangyuli@uniontech.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> |
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Donet Tom
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08ff89b565 |
selftests/mm: add fork inheritance test for ksm_merging_pages counter
Add a new selftest to verify whether the `ksm_merging_pages` counter in `mm_struct` is not inherited by a child process after fork. This helps ensure correctness of KSM accounting across process creation. Link: https://lkml.kernel.org/r/e7bb17d374133bd31a3e423aa9e46e1122e74971.1758648700.git.donettom@linux.ibm.com Signed-off-by: Donet Tom <donettom@linux.ibm.com> Acked-by: David Hildenbrand <david@redhat.com> Cc: Aboorva Devarajan <aboorvad@linux.ibm.com> Cc: Chengming Zhou <chengming.zhou@linux.dev> Cc: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com> Cc: Wei Yang <richard.weiyang@gmail.com> Cc: xu xin <xu.xin16@zte.com.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Takashi Iwai
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6b9c4a05ae |
ASoC: Updates for v6.18 round 2
Some more updates for v6.18, mostly fixes for the earlier pull request with some cleanups and more minor fixes for older code. We do have one new driver, the TI TAS2783A, and some quirks for new platforms. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmjZIZAACgkQJNaLcl1U h9DZqgf+L+U/ysqynLO6NncBatsP3QHBxL8Op8DhOUG8cmtKwUHgeNJPaNDPA/rF b6WLe6yZBXpBLyDtWo/eHwxC3pdOPJ7JcFWhpZcYMBKfxwszzki72OiZerxkwuUS mFVr0EFkB/cbqkw9D8AF5tOMlauSDNjJQUiuNDOKD7BYvFNtuY3wOYvIA/kaW86l SlAb3dD4pOhYP8mgPP8v8h83LyHr3NnIEX4uVSQTxZ98zZmL08FB2sCv4bzqZuag pI6cDF1qlOT5y1CKLXIZ1JoflrUiEYyB9X1eb/rW2+8/USGzC4enr2cEm4phU3te X4MV3N3BulSq03xewX0Jw19mdQE0Hg== =91Ur -----END PGP SIGNATURE----- Merge tag 'asoc-v6.18-2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next ASoC: Updates for v6.18 round 2 Some more updates for v6.18, mostly fixes for the earlier pull request with some cleanups and more minor fixes for older code. We do have one new driver, the TI TAS2783A, and some quirks for new platforms. |
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Eric Biggers
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4ef77dd584 |
libbpf: Replace AF_ALG with open coded SHA-256
Reimplement libbpf_sha256() using some basic SHA-256 C code. This
eliminates the newly-added dependency on AF_ALG, which is a problematic
UAPI that is not supported by all kernels.
Make libbpf_sha256() return void, since it can no longer fail. This
simplifies some callers. Also drop the unnecessary 'sha_out_sz'
parameter. Finally, also fix the typo in "compute_sha_udpate_offsets".
Fixes:
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Kumar Kartikeya Dwivedi
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15cf39221e |
selftests/bpf: Add stress test for rqspinlock in NMI
Introduce a kernel module that will exercise lock acquisition in the NMI
path, and bias toward creating contention such that NMI waiters end up
being non-head waiters. Prior to the rqspinlock fix made in the commit
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Linus Torvalds
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51a24b7dea |
Two fixes for rtla in v6.17:
- Fix a buffer overflow in actions_parse() The "trigger_c" variable did not account for the nul byte when determining its size. - Fix a compare that had the values reversed actions_destroy() is to reallocate when len is greater than the current size, but the compare was testing if size is greater than the new length. -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCaNfbFhQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qmozAPwKEWRb1gbDIeeva7r6HVRc1jKO3EfK qT72fgqfKlwUawD/fM3mlW1+n25ZHMX+1e8eQV1CP5VOldgdQEHFzDEz0gI= =i8D5 -----END PGP SIGNATURE----- Merge tag 'trace-tools-v6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull rtla tool fixes from Steven Rostedt: - Fix a buffer overflow in actions_parse() The "trigger_c" variable did not account for the nul byte when determining its size - Fix a compare that had the values reversed actions_destroy() is supposed to reallocate when len is greater than the current size, but the compare was testing if size is greater than the new length * tag 'trace-tools-v6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: rtla/actions: Fix condition for buffer reallocation rtla: Fix buffer overflow in actions_parse |
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Daniel Borkmann
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0e8e60e86c |
selftests/bpf: Add test case for different expected_attach_type
Add a small test case which adds two programs - one calling the other through a tailcall - and check that BPF rejects them in case of different expected_attach_type values: # ./vmtest.sh -- ./test_progs -t xdp_devmap [...] #641/1 xdp_devmap_attach/DEVMAP with programs in entries:OK #641/2 xdp_devmap_attach/DEVMAP with frags programs in entries:OK #641/3 xdp_devmap_attach/Verifier check of DEVMAP programs:OK #641/4 xdp_devmap_attach/DEVMAP with programs in entries on veth:OK #641 xdp_devmap_attach:OK Summary: 2/4 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/r/20250926171201.188490-2-daniel@iogearbox.net Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Jiapeng Chong
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4b2113413e |
bpftool: Remove duplicate string.h header
./tools/bpf/bpftool/sign.c: string.h is included more than once. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=25502 Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Acked-by: Quentin Monnet <qmo@kernel.org> Link: https://lore.kernel.org/r/20250926095240.3397539-2-jiapeng.chong@linux.alibaba.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Wander Lairson Costa
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2227f273b7 |
rtla/actions: Fix condition for buffer reallocation
The condition to check if the actions buffer needs to be resized was
incorrect. The check `self->size >= self->len` would evaluate to
true on almost every call to `actions_new()`, causing the buffer to
be reallocated unnecessarily each time an action was added.
Fix the condition to `self->len >= self.size`, ensuring
that the buffer is only resized when it is actually full.
Cc: John Kacur <jkacur@redhat.com>
Cc: Luis Goncalves <lgoncalv@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Chang Yin <cyin@redhat.com>
Cc: Costa Shulyupin <costa.shul@redhat.com>
Cc: Crystal Wood <crwood@redhat.com>
Cc: Gabriele Monaco <gmonaco@redhat.com>
Link: https://lore.kernel.org/20250915181101.52513-1-wander@redhat.com
Fixes:
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Ivan Pravdin
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b1e0ff7209 |
rtla: Fix buffer overflow in actions_parse
Currently, tests 3 and 13-22 in tests/timerlat.t fail with error:
*** buffer overflow detected ***: terminated
timeout: the monitored command dumped core
The result of running `sudo make check` is
tests/timerlat.t (Wstat: 0 Tests: 22 Failed: 11)
Failed tests: 3, 13-22
Files=3, Tests=34, 140 wallclock secs ( 0.07 usr 0.01 sys + 27.63 cusr
27.96 csys = 55.67 CPU)
Result: FAIL
Fix buffer overflow in actions_parse to avoid this error. After this
change, the tests results are
tests/hwnoise.t ... ok
tests/osnoise.t ... ok
tests/timerlat.t .. ok
All tests successful.
Files=3, Tests=34, 186 wallclock secs ( 0.06 usr 0.01 sys + 41.10 cusr
44.38 csys = 85.55 CPU)
Result: PASS
Link: https://lore.kernel.org/164ffc2ec8edacaf1295789dad82a07817b6263d.1757034919.git.ipravdin.official@gmail.com
Fixes:
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Crystal Wood
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05b7e10687 |
tools/rtla: Add remaining support for osnoise actions
The basic functionality came with the consolidation; now hook up the command line options, and add documentation and tests. Cc: John Kacur <jkacur@redhat.com> Cc: Costa Shulyupin <costa.shul@redhat.com> Link: https://lore.kernel.org/20250907022325.243930-8-crwood@redhat.com Reviewed-by: Tomas Glozar <tglozar@redhat.com> Signed-off-by: Crystal Wood <crwood@redhat.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> |
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Crystal Wood
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3cd6b18d10 |
tools/rtla: Add test engine support for unexpected output
Add a check() parameter to indicate which text must not appear in the output. Simplify the code so that we can print failures as they happen rather than trying to figure out what went wrong after printing "not ok". This also means that "not ok" gets printed after the info rather than before, which seems more intuitive anyway. Cc: John Kacur <jkacur@redhat.com> Cc: Costa Shulyupin <costa.shul@redhat.com> Link: https://lore.kernel.org/20250907022325.243930-7-crwood@redhat.com Reviewed-by: Tomas Glozar <tglozar@redhat.com> Signed-off-by: Crystal Wood <crwood@redhat.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> |
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Crystal Wood
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c4e30c22ba |
tools/rtla: Fix -A option name in test comment
This was changed to --on-threshold when the patches were applied. Cc: John Kacur <jkacur@redhat.com> Cc: Costa Shulyupin <costa.shul@redhat.com> Link: https://lore.kernel.org/20250907022325.243930-6-crwood@redhat.com Reviewed-by: Tomas Glozar <tglozar@redhat.com> Signed-off-by: Crystal Wood <crwood@redhat.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> |
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Crystal Wood
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2f3172f9dd |
tools/rtla: Consolidate code between osnoise/timerlat and hist/top
Currently a lot of code is duplicated between the different rtla tools, making maintenance more difficult, and encouraging divergence such as features that are only implemented for certain tools even though they could be more broadly applicable. Merge the various main() functions into a common run_tool() with an ops struct for tool-specific details. Implement enough support for actions on osnoise to not need to keep the old params->trace_output path. Cc: John Kacur <jkacur@redhat.com> Cc: Costa Shulyupin <costa.shul@redhat.com> Link: https://lore.kernel.org/20250907022325.243930-5-crwood@redhat.com Reviewed-by: Tomas Glozar <tglozar@redhat.com> Signed-off-by: Crystal Wood <crwood@redhat.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> |
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Crystal Wood
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263d7eacf8 |
tools/rtla: Create common_apply_config()
Merge the common bits of osnoise_apply_config() and timerlat_apply_config(). Put the result in a new common.c, and move enough things to common.h so that common.c does not need to include osnoise.h. Cc: John Kacur <jkacur@redhat.com> Cc: Costa Shulyupin <costa.shul@redhat.com> Link: https://lore.kernel.org/20250907022325.243930-4-crwood@redhat.com Reviewed-by: Tomas Glozar <tglozar@redhat.com> Signed-off-by: Crystal Wood <crwood@redhat.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> |