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5350 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
b4b760b59f |
RISC-V:
- Avoid redundant allocations when allocating IMSIC page tables
- Apply SBI FWFT LOCK flag only on successful set
- Bound SBI PMU counter mask scan to BITS_PER_LONG, since on RV32
the PMU SBI start/stop helper can only access 32 PMU counters.
- Skip TLB flush when G-stage PTE becomes valid if the Svvptc
extension is available.
- Always show Zicbo[m|z|p] block sizes in ONE_REG
- Inject instruction access fault on unmapped guest fetch
- Use raw spinlock for irqs_pending and irqs_pending_mask
- Fix Spectre-v1 in vector register access via ONE_REG
x86:
- Fixes to SEV selftests.
- Once free_nested() did a VMCLEAR of shadow VMCS, there's no need to VMCLEAR it
again if the kernel is preempted and thread migration happens
- Preserve nested TDP shadow page tables if they are used as roots, instead of
clearing them unnecessarily
- Fix use of stale data if out-of-memory happens after vendor module reload
- Check for invalid/obsolete root *after* making MMU pages available, because
the latter can make a page invalid
- Only reset TSC Deadline Timer in apic_timer_expired on KVM_RUN
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"RISC-V:
- Avoid redundant allocations when allocating IMSIC page tables
- Apply SBI FWFT LOCK flag only on successful set
- Bound SBI PMU counter mask scan to BITS_PER_LONG, since on RV32 the
PMU SBI start/stop helper can only access 32 PMU counters.
- Skip TLB flush when G-stage PTE becomes valid if the Svvptc
extension is available.
- Always show Zicbo[m|z|p] block sizes in ONE_REG
- Inject instruction access fault on unmapped guest fetch
- Use raw spinlock for irqs_pending and irqs_pending_mask
- Fix Spectre-v1 in vector register access via ONE_REG
x86:
- Fixes to SEV selftests
- Once free_nested() did a VMCLEAR of shadow VMCS, there's no need to
VMCLEAR it again if the kernel is preempted and thread migration
happens
- Preserve nested TDP shadow page tables if they are used as roots,
instead of clearing them unnecessarily
- Fix use of stale data if out-of-memory happens after vendor module
reload
- Check for invalid/obsolete root *after* making MMU pages available,
because the latter can make a page invalid
- Only reset TSC Deadline Timer in apic_timer_expired on KVM_RUN"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: Only reset TSC Deadline Timer in apic_timer_expired on KVM_RUN
KVM: selftests: sev_init2_tests: Derive SEV availability from KVM
KVM: selftests: sev_smoke_test: Only run VM types the host offers
KVM: x86/mmu: Fix use-after-free on vendor module reload
KVM: x86/mmu: Preserve nested TDP shadow page tables if they are used as roots
KVM: x86: Check for invalid/obsolete root *after* making MMU pages available
KVM: nVMX: Hide shadow VMCS right after VMCLEAR
KVM: riscv: Fix Spectre-v1 in vector register access
RISC-V: KVM: Serialize virtual interrupt pending state updates
RISC-V: KVM: Inject instruction access fault on unmapped guest fetch
RISC-V: KVM: Zicbo[m|z|p] block sizes should be always present in ONE_REG
riscv: kvm: Skip TLB flush when G-stage PTE becomes valid with Svvptc
KVM: riscv: PMU: Bound counter mask scan to BITS_PER_LONG
KVM: riscv: SBI FWFT: Apply LOCK flag only on successful set
RISC-V: KVM: Avoid redundant page-table allocations in ioremap topup
|
||
|
Mark Harris
|
5caae1deee |
riscv: hwprobe: Avoid uninitialized read in hwprobe_get_cpus()
When cpusetsize < cpumask_size(), hwprobe_get_cpus() did not fully
initialize its copy of the cpu mask, which could cause non-deterministic
results from the riscv_hwprobe syscall on a system with more than 8 CPUs
when the supplied cpu mask is empty. Address this by fully initializing
the cpu mask.
Fixes:
|
||
|
Zongmin Zhou
|
8d9c9b135b |
KVM: riscv: Fix Spectre-v1 in vector register access
User-controlled register indices from the ONE_REG ioctl are used to index into the vector register buffer (v0..v31). Sanitize the calculated offset with array_index_nospec() to prevent speculative out-of-bounds access. Signed-off-by: Zongmin Zhou <zhouzongmin@kylinos.cn> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20260715030818.75657-1-min_halo@163.com Signed-off-by: Anup Patel <anup@brainfault.org> |
||
|
Xie Bo
|
d024a0a787 |
RISC-V: KVM: Serialize virtual interrupt pending state updates
KVM RISC-V tracks guest local interrupt state with two bitmaps:
- irqs_pending: interrupts that should be visible to the guest
- irqs_pending_mask: interrupts whose pending state changed
The current code updates those bitmaps with independent atomic bitops
and assumes a multiple-producer, single-consumer protocol. That model
does not actually hold.
kvm_riscv_vcpu_sync_interrupts() is not a pure consumer. When the guest
changes guest-visible HVIP state, sync_interrupts() writes both
irqs_pending and irqs_pending_mask to reflect the new guest state back
into KVM state. As a result, irqs_pending and irqs_pending_mask form a
single logical state transition, but they are not updated atomically as
a pair.
This allows a race where a newly injected interrupt is lost. For
example:
CPU0 CPU1
---- ----
kvm_riscv_vcpu_set_interrupt(VS_SOFT)
set_bit(VS_SOFT, irqs_pending)
kvm_riscv_vcpu_sync_interrupts()
sees guest-cleared HVIP.VSSIP
sets irqs_pending_mask
clear_bit(IRQ_VS_SOFT, irqs_pending)
set_bit(VS_SOFT, irqs_pending_mask)
kvm_vcpu_kick()
After that interleaving, a later flush can update HVIP without VSSIP
even though a new virtual interrupt was injected. In practice, the
guest can remain blocked in WFI with work pending.
The same pending/mask protocol is shared by VS soft interrupts, PMU
overflow delivery, and AIA high interrupt synchronization, so the race
is not limited to one interrupt source.
Fix this by serializing all updates to irqs_pending and irqs_pending_mask
with a per-vCPU raw spinlock. This keeps the pending bit and the dirty
mask as one state transition across:
- set/unset interrupt
- guest HVIP sync
- interrupt flush to guest CSR state
- vCPU reset
- AIA CSR writes that clear dirty state
Use non-atomic bitmap operations while holding the lock. Hold the lock
across the AIA sync, flush, and pending checks as well, so both bitmap
words share the same serialization domain.
This intentionally replaces the existing lockless protocol instead of
trying to repair it with additional barriers. The problem is not memory
ordering on a single field; it is that two separate bitmaps encode one
shared state machine while both producers and sync paths can modify
them. A per-vCPU raw spinlock keeps the fix small, local, and suitable
for backporting.
Fixes:
|
||
|
Aurelien Jarno
|
e4bf6eb4c7 |
arch/riscv: vdso: remove CFI landing pad from rt_sigreturn
When CONFIG_RISCV_USER_CFI is enabled, the CFI version of the vDSO, has a CFI landing pad instruction at the start of __vdso_rt_sigreturn. This breaks libgcc's unwinding code which matches on the first two instructions. Other unwinders that rely on similar instruction matching may also be affected. Since __vdso_rt_sigreturn is reached as part of signal-return handling rather than via an indirect call/jump from userspace, it does not need a CFI landing pad. Remove it and restore the instruction sequence expected by existing unwinding code. This matches what was done on arm64 in commit |
||
|
Qingwei Hu
|
4d638dc091 |
RISC-V: KVM: Inject instruction access fault on unmapped guest fetch
When an instruction guest-page-fault targets a GPA that is not backed by any memslot, KVM has no MMIO emulation path for the fetch. Load and store guest-page faults can be routed through MMIO emulation, but an instruction fetch has no data payload or access size for userspace to complete in the same way. Treat this case as an architectural access fault in the guest. On bare metal, fetching from an inaccessible physical address raises an instruction access fault for the supervisor to handle through its trap vector. Reflect EXC_INST_ACCESS back to the guest so the guest observes the same class of exception rather than leaving the fetch as a host-handled condition. stval contains the virtual address of the portion of the instruction that caused the fault, while sepc points to the beginning of the instruction. Signed-off-by: Qingwei Hu <qingwei.hu@bytedance.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20260707122548.281685-1-qingwei.hu@bytedance.com Signed-off-by: Anup Patel <anup@brainfault.org> |
||
|
Thomas Weißschuh
|
ad6dcfa023 |
riscv: vdso: Do not use LTO for the vDSO
With LTO enabled the compiler assumes that the vDSO functions are not
used and optimizes them away completely. Currently this happens to
__vdso_clock_getres(), __vdso_clock_gettime(), __vdso_getrandom(),
__vdso_gettimeofday() and __vdso_riscv_hwprobe().
Disable LTO for the vDSO, as these functions are hand-optimized anyways.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202606301855.WvkSC4kD-lkp@intel.com/
Fixes:
|
||
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Yunhui Cui
|
6dc3934152 |
riscv: io: avoid null-pointer arithmetic in PIO helpers
When port I/O is not supported, exposing the port-string helpers is both unnecessary and can make clang diagnose null-pointer arithmetic from the PCI_IOBASE based address expression. Keep the MMIO string helpers available as before, but only provide the port I/O variants when CONFIG_HAS_IOPORT is enabled. Signed-off-by: Yunhui Cui <cuiyunhui@bytedance.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Link: https://patch.msgid.link/20260703122832.15984-2-cuiyunhui@bytedance.com Signed-off-by: Paul Walmsley <pjw@kernel.org> |
||
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Rui Qi
|
3a2694bf6a |
riscv: Gate FUNCTION_ALIGNMENT_4B on DYNAMIC_FTRACE
The FUNCTION_ALIGNMENT_4B select forces the whole kernel to be built
with -fmin-function-alignment=4. This alignment is only needed so the
patchable-function-entry NOPs, which arch/riscv/Makefile emits under
CONFIG_DYNAMIC_FTRACE, can be patched reliably on RISCV_ISA_C=y builds
where compressed instructions otherwise allow 2-byte function
alignment.
The select is currently gated on HAVE_DYNAMIC_FTRACE, a capability bit
that is selected whenever the toolchain supports dynamic ftrace, rather
than on whether tracing is actually enabled. As a result every
RISCV_ISA_C=y build gets 4-byte function alignment across the entire
kernel even when function tracing is disabled, needlessly growing the
kernel image and wasting instruction cache for a feature that is not
in use.
Gate the select on DYNAMIC_FTRACE instead, matching the condition under
which arch/riscv/Makefile emits -fpatchable-function-entry, so the
alignment is only applied when it is actually needed.
Fixes:
|
||
|
Vivian Wang
|
4edd70ee6a |
mm/sparse-vmemmap: flush_cache_vmap() after hotplugging vmemmap
section_activate() does not flush TLB after populating new vmemmap pages. On most architectures, this is okay. However it is a problem on RISC-V since there the TLB caching non-present entries is permitted, which causes spurious faults on some hardwares. This seems to be most easily reproduced with DEBUG_VM=y and PAGE_POISONING=y, which causes these newly mapped struct pages to be poisoned i.e. written to immediately after mapping. Extend the RISC-V flush_cache_vmap() to also handle the vmemmap range, and call it after hotplugging vmemmap, which gets the possible spurious fault handled in the exception handler. At least for now, the only other architecture with both SPARSEMEM_VMEMMAP and flush_cache_vmap() is PowerPC, which has a similar problem with newly valid PTEs. But there flush_cache_vmap() is just a ptesync. So it should be safe to do this for generic code while having minimal performance impact. Suggested-by: Muchun Song <muchun.song@linux.dev> Signed-off-by: Vivian Wang <wangruikang@iscas.ac.cn> Reviewed-by: Muchun Song <muchun.song@linux.dev> Acked-by: David Hildenbrand (Arm) <david@kernel.org> Link: https://patch.msgid.link/20260713-mark-after-vmemmap-populate-v6-2-b945ceba29d4@iscas.ac.cn Signed-off-by: Paul Walmsley <pjw@kernel.org> |
||
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Vivian Wang
|
b6ea9680f8 |
riscv: mm: Make mark_new_valid_map() stuff depend on 64BIT && MMU
None of the code relating to mark_new_valid_map() does anything useful without CONFIG_64BIT=y && CONFIG_MMU=y, because the new_valid_map_cpus_check code is only used if CONFIG_64BIT, and the exception codes checked there can only happen with CONFIG_MMU=y. Therefore, make these conditional on CONFIG_64BIT=y && CONFIG_MMU=y to simplify programming, since we do not have to handle CONFIG_MMU=n when changing this code in the future. This also removes some unused code on the entry path for CONFIG_MMU=n. Signed-off-by: Vivian Wang <wangruikang@iscas.ac.cn> Link: https://patch.msgid.link/20260713-mark-after-vmemmap-populate-v6-1-b945ceba29d4@iscas.ac.cn Signed-off-by: Paul Walmsley <pjw@kernel.org> |
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Anup Patel
|
298276da73 |
RISC-V: KVM: Zicbo[m|z|p] block sizes should be always present in ONE_REG
All config and core registers of the KVM RISC-V ONE_REG interface are expected to be always available to the KVM user-space and the KVM get-reg-list selftest assumes these registers to be as base registers. Currently, the Zicbo[m|z|p] block size config registers are only available when corresponding ISA extension is present on the host which breaks the above expectation. In fact, KVM get-reg-list selftest fails when any of the Zicbo[m|z|p] ISA extension is not present on host. To address this issue, drop the ISA extension checks from kvm_riscv_vcpu_get/set_reg_config() and copy_config_reg_indices() functions. Fixes: |
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Dylan.Wu
|
1cc935ec2d |
riscv: kvm: Skip TLB flush when G-stage PTE becomes valid with Svvptc
The gstage_tlb_flush() in the kvm_riscv_gstage_set_pte() is not needed when an invalid G-stage PTE becomes valid and Svvptc extension is available because new valid PTEs become visible to the page-table walker within a bounded time. Assisted-by: YuanSheng: deepseek-v4-pro Co-developed-by: Quan Zhou <zhouquan@iscas.ac.cn> Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn> Signed-off-by: Dylan.Wu <fredwudi0305@gmail.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20260701075239.95542-1-fredwudi0305@gmail.com Signed-off-by: Anup Patel <anup@brainfault.org> |
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Shengwen Cheng
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0cc15f2c7a |
KVM: riscv: PMU: Bound counter mask scan to BITS_PER_LONG
The PMU SBI handler passes the guest argument registers directly to
the PMU start/stop helpers:
kvm_riscv_vcpu_pmu_ctr_start(vcpu, cp->a0, cp->a1, cp->a2, ...)
kvm_riscv_vcpu_pmu_ctr_stop(vcpu, cp->a0, cp->a1, cp->a2, ...)
which map to:
unsigned long ctr_base
unsigned long ctr_mask
unsigned long flags
Thus cp->a1 is a single unsigned long ctr_mask, not a bitmap array
sized for RISCV_MAX_COUNTERS.
On RV32, RISCV_MAX_COUNTERS is 64 while BITS_PER_LONG is 32. Using
for_each_set_bit() with RISCV_MAX_COUNTERS can therefore make
find_next_bit() access bits beyond the storage of ctr_mask on RV32.
Limit the scan to BITS_PER_LONG. The requested counter range is already
validated by kvm_pmu_validate_counter_mask(), so this preserves RV64
behavior and avoids an out-of-bounds bitmap read on RV32.
Fixes:
|
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SeungJu Cheon
|
b8aa7571e9 |
KVM: riscv: SBI FWFT: Apply LOCK flag only on successful set
kvm_sbi_fwft_set() applies the caller's flags to conf->flags before
invoking the set() callback. If the callback returns an error, the LOCK
bit persists and the feature becomes permanently locked without its value
ever being changed.
Move the flags assignment after the callback so LOCK takes effect only
on success.
Fixes:
|
||
|
Fangyu Yu
|
936190fcfc |
RISC-V: KVM: Avoid redundant page-table allocations in ioremap topup
kvm_riscv_mmu_ioremap() currently tops up its on-stack page-table cache via kvm_mmu_topup_memory_cache(), which allocates up to KVM_ARCH_NR_OBJS_PER_MEMORY_CACHE (32) objects per topup. ioremap only consumes non-leaf page-table pages, at most pgd_levels - 1 (1 to 4) per call, and for contiguous mappings within the same huge page the non-leaf pages are allocated once and reused by subsequent pages. Topping up to 32 objects therefore triggers many unnecessary GFP_KERNEL_ACCOUNT allocations on every call, all of which are freed when the function returns. In hot paths (such as vCPU migration), this creates avoidable allocator churn and wastes CPU cycles. Use __kvm_mmu_topup_memory_cache() with a capacity of pgd_levels so the on-stack cache is sized to the maximum demand of a single mapping. This removes the redundant allocations and reduces per-call overhead without changing behavior. Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Fangyu Yu <fangyu.yu@linux.alibaba.com> Link: https://lore.kernel.org/r/20260610093922.51617-1-fangyu.yu@linux.alibaba.com Signed-off-by: Anup Patel <anup@brainfault.org> |
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Jia Wang
|
3fb29495b4 |
riscv: defconfig: enable ARCH_ULTRARISC
Enable `ARCH_ULTRARISC` in the default RISC-V defconfig. Signed-off-by: Jia Wang <wangjia@ultrarisc.com> Link: https://patch.msgid.link/20260515-ultrarisc-pinctrl-v1-9-bf559589ea8a@ultrarisc.com Signed-off-by: Paul Walmsley <pjw@kernel.org> |
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Jia Wang
|
a3320469e3 |
riscv: add UltraRISC SoC family Kconfig support
The first SoC in the UltraRISC series is UR-DP1000, containing octa UltraRISC CP100 cores. Signed-off-by: Jia Wang <wangjia@ultrarisc.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20260427-ultrarisc-pcie-v4-1-98935f6cdfb5@ultrarisc.com Signed-off-by: Paul Walmsley <pjw@kernel.org> |
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Tao Liu
|
81bbcff0c0 |
riscv: Prevent NULL pointer dereference in machine_kexec_prepare()
A NULL pointer dereference issue is noticed in riscv's
machine_kexec_prepare(), where image->segment[i].buf might be NULL and
copied unchecked.
The NULL buf comes from ima_add_kexec_buffer(), where kbuf is added by
kexec_add_buffer(), but kbuf.buffer is NULL, then it is copied without
a check in machine_kexec_prepare():
kexec_file_load
-> kimage_file_alloc_init()
-> kimage_file_prepare_segments()
-> ima_add_kexec_buffer()
-> kexec_add_buffer()
-> machine_kexec_prepare()
-> memcpy()
Address this by adding a check before the data copy attempt.
Fixes:
|
||
|
Linus Torvalds
|
590cae7152 |
RISC-V updates for v7.2-rc2
- Fix a crash when a kretprobe reads from the stack - Fix an issue with the build-time mcount sorter that broke ftrace - Fix the rv32 IRQ stack frame padding to match the ABI - Only defer IOMMU configuration during initialization. This avoids an issue where IOMMU configuration could be indefinitely deferred - Add the missing build salt to the vDSO - Now that RISC-V systems with higher numbers of cores are starting to become available, raise NR_CPUS for RISC-V to 256 - Clean up some warnings from sparse caused by the RISC-V-optimized RAID6 code - Clean up our __cpu_up() code with a few minor fixes -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEElRDoIDdEz9/svf2Kx4+xDQu9KksFAmpH+BAACgkQx4+xDQu9 Kkt2BxAAkHACbEzUDBJnhKL+Ce39S4QzNb+5iE25t7cUrpkK2ArYMBCd5Zir0Q+E WIP1nmDYsE9z6fNa8CncIEY6CnNBNDRK2eR7BiUM+tOhS5jMqvctb7LxkIGgbh3/ VuNCw0NIavQ5zMqdVHQVzfIS+PojysZVnSQ3CwAHV1hgKO0p1FVozfv3N+TWBHjL hMCGxCNxIQaDXFKLSYlOh4fJEgpyznRo/YNybmugCAe8HqY2RyOgWhm62ipL0kcP OAjpKRIJ9o4CCaC+F3TNGjubw2I+AkEf8rMbw1KDuzwDI2HmsubMyFS/LHrhM0D7 VhSjxu3DxJT7ObM4ID07hjywWTRAfmwI0AokajYmBPqVi3t+erJnAU2ayExnFmg9 PWN53BbEMg+T2W5ym7arhWz28MdHoATviwEy1gLgaJbQtAQJDzK1FQ9in5m+AJAe QAO6O04bS+PUOz4orlGMDa7bLnHQucLKNvkI7EkXdS47yYPvs6OwOX1EjfMkM1TE O+36Uc6FSAEoO3nN5QGhV2OUegPyKm8lSJhqfftK4qBSd7Ffd9Mpsw9APCj/75ay uZ2yvllHli+SLo/xgOs/oFFUTrID1LUmwDzU7K1tr11hI2AV2BZ4aA1h3B6LbVt9 Tz3vxaOC4DEx9owhQRaFgo13KvSYAAz4QYAwr1EMPHtDMRxu6k8= =qgfC -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Paul Walmsley: - Fix a crash when a kretprobe reads from the stack - Fix an issue with the build-time mcount sorter that broke ftrace - Fix the rv32 IRQ stack frame padding to match the ABI - Only defer IOMMU configuration during initialization. This avoids an issue where IOMMU configuration could be indefinitely deferred - Add the missing build salt to the vDSO - Now that RISC-V systems with higher numbers of cores are starting to become available, raise NR_CPUS for RISC-V to 256 - Clean up some warnings from sparse caused by the RISC-V-optimized RAID6 code - Clean up our __cpu_up() code with a few minor fixes * tag 'riscv-for-linus-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: probes: save original sp in rethook trampoline riscv: Fix 32-bit call_on_irq_stack() frame pointer ABI scripts/sorttable: Handle RISC-V patchable ftrace entries riscv: smp: use secs_to_jiffies in __cpu_up ACPI: RIMT: Only defer the IOMMU configuration in init stage riscv: Add build salt to the vDSO raid6: fix raid6_recov_rvv symbol undeclared warning raid6: fix riscv symbol undeclared warnigns riscv: Raise default NR_CPUS for 64BIT to 256 |
||
|
Pawan Gupta
|
0bb99f2cfa |
bpf: Restrict JIT predictor flush to cBPF
Currently predictor flush on memory reuse is done for all BPF JIT allocations, but only cBPF programs can be loaded by an unprivileged user. eBPF is privileged by default, and flushing predictors for all CPUs on every eBPF reuse penalizes the common case for no security benefit. eBPF allocations can be frequent on busy systems, only flush predictors for cBPF programs. Trampoline and dispatcher allocations also skip the flush as they are eBPF-only. Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |
||
|
Martin Kaiser
|
bc7b086a45 |
riscv: probes: save original sp in rethook trampoline
Reading a word from the stack in a kretprobe crashes a risc-v kernel.
$ cd /sys/kernel/tracing/
$ echo 'r n_tty_write $stack0' > dynamic_events
$ echo 1 > events/kprobes/enable
Unable to handle kernel paging request at virtual address 0000000200000128
...
[<ffffffff80016d16>] regs_get_kernel_stack_nth+0x26/0x38
[<ffffffff80177196>] process_fetch_insn+0x3ee/0x760
[<ffffffff80177836>] kretprobe_trace_func+0x116/0x1f0
[<ffffffff8017795a>] kretprobe_dispatcher+0x4a/0x58
[<ffffffff8013572e>] kretprobe_rethook_handler+0x5e/0x90
[<ffffffff80180838>] rethook_trampoline_handler+0x70/0x108
[<ffffffff8001ba32>] arch_rethook_trampoline_callback+0x12/0x1c
[<ffffffff8001ba84>] arch_rethook_trampoline+0x48/0x94
[<ffffffff8067872a>] tty_write+0x1a/0x30
In regs_get_kernel_stack_nth, regs->sp contains an arbitrary value.
arch_rethook_trampoline saves the registers from the probed function in a
struct pt_regs. sp is not saved. Instead, sp is decremented for
arch_rethook_trampoline's local stack.
Fix this crash and save the original sp along with the other registers.
Use a0 as a temporary register, it is overwritten anyway.
Cc: stable@vger.kernel.org
Fixes:
|
||
|
Samuel Holland
|
c4c7756a81 |
riscv: Fix 32-bit call_on_irq_stack() frame pointer ABI
call_on_irq_stack() uses struct member offsets to set up its link in the
frame record list. On riscv32, struct stackframe is the wrong size to
maintain stack pointer alignment, so STACKFRAME_SIZE_ON_STACK includes
padding. However, the ABI requires the frame record to be placed
immediately below the address stored in s0, so the padding must come
before the struct members.
Fix the layout by making STACKFRAME_FP and STACKFRAME_RA the negative
offsets from s0, instead of the positive offsets from sp.
Fixes:
|
||
|
Thorsten Blum
|
68fb3c026b |
riscv: smp: use secs_to_jiffies in __cpu_up
Use secs_to_jiffies() to simplify the code. Drop the redundant zero initialization while at it. Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Link: https://patch.msgid.link/20260611232537.467398-3-thorsten.blum@linux.dev Signed-off-by: Paul Walmsley <pjw@kernel.org> |
||
|
Bastian Blank
|
c8c5a7835f |
riscv: Add build salt to the vDSO
The vDSO needs to have a unique build id in a similar manner to the kernel and modules. Use the build salt macro. Signed-off-by: Bastian Blank <waldi@debian.org> Reviewed-by: Nam Cao <namcao@linutronix.de> Link: https://patch.msgid.link/ajQY7n0an0YwQ--j@steamhammer.waldi.eu.org Signed-off-by: Paul Walmsley <pjw@kernel.org> |
||
|
Vivian Wang
|
0fa7497719 |
riscv: Raise default NR_CPUS for 64BIT to 256
SpacemiT has already produced a 80-core RVA23 RISC-V server [1], and going further back, the dual-socket SG2042-based Sophgo Pisces has 128 cores (although that had some issues achieving mainline support). Therefore, an NR_CPUS of 64 is not enough. Raise default NR_CPUS to 256 for 64BIT (when !RISCV_SBI_V01, since very old firmware can't support more than 64 cores). The number was picked as a power of two that is at least double the known max. I believe this should be the right balance between not wasting too much memory and not having to touch this too often. Ubuntu has already been shipping NR_CPUS=512 for riscv64. We have also been testing NR_CPUS=256 internally at ISCAS and found negligible performance impact and no ill effects. Reported-by: Lufei Zheng <lufei.zheng@spacemit.com> Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1140651 # [1] Suggested-by: Han Gao <gaohan@iscas.ac.cn> Signed-off-by: Vivian Wang <wangruikang@iscas.ac.cn> Link: https://patch.msgid.link/20260625-riscv-more-nr-cpus-v1-1-5da8c72b9269@iscas.ac.cn Signed-off-by: Paul Walmsley <pjw@kernel.org> |
||
|
Linus Torvalds
|
2e05544060 |
mm.git review status for mm-hotfixes-stable..mm-nonmm-stable
Everything:
Total patches: 108
Reviews/patch: 0.84
Reviewed rate: 75%
Patch series in this merge:
- The 2 patch series "taskstats: fix TGID dead-thread stat retention"
from Yiyang Chen fixes a taskstats TGID aggregation bug where fields
added in the TGID query path were not preserved after thread exit, and
adds a kselftest covering the regression.
- The 2 patch series "lib/tests: string_helpers: Slight improvements"
from Andy Shevchenko improves lib/tests/string_helpers_kunit.c a little.
- The 2 patch series "lib/base64: decode fixes" from Josh Law addreesses
minor issues in lib/base64.c.
- The 3 patch series "selftests/filelock: Make output more kselftestish"
from Mark Brown makes the output from the ofdlocks test a bit easier for
tooling to work with, and also ignores the generated file.
- The 3 patch series "uaccess: unify inline vs outline
copy_{from,to}_user() selection" from Yury Norov simplifies the usercopy
code by removing the selectability of inlining copy_{from,to}_user().
- The 5 patch series "ocfs2: validate inline xattr header consumers"
from ZhengYuan Huang fixes a number of possible issues in the ocfs2
xattr code.
- The 8 patch series "lib and lib/cmdline enhancements" from Dmitry
Antipov provides additional robustness checking in the cmdline handling
code and its in-kernel testing and selftests.
- The 18 patch series "cleanup the RAID6 P/Q library" from Christoph
Hellwig cleans up the RAID6 P/Q library to match the recent updates to
the RAID 5 XOR library and other CRC/crypto libraries.
- The 3 patch series "ocfs2: harden inode validators against forged
metadata" from Michael Bommarito adds three structural checks to OCFS2
dinode validation so malformed on-disk fields are rejected before
ocfs2_populate_inode() copies them into the in-core inode.
- The 2 patch series "lib/raid: replace __get_free_pages() call with
kmalloc()" from Mike Rapoport cleans up the lib/raid code by using
kmalloc() in more places.
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Merge tag 'mm-nonmm-stable-2026-06-21-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "taskstats: fix TGID dead-thread stat retention" (Yiyang Chen)
Fix a taskstats TGID aggregation bug where fields added in the TGID
query path were not preserved after thread exit, and adds a kselftest
covering the regression.
- "lib/tests: string_helpers: Slight improvements" (Andy Shevchenko)
Improve lib/tests/string_helpers_kunit.c a little
- "lib/base64: decode fixes" (Josh Law)
Address minor issues in lib/base64.c
- "selftests/filelock: Make output more kselftestish" (Mark Brown)
Make the output from the ofdlocks test a bit easier for tooling to
work with. Also ignore the generated file
- "uaccess: unify inline vs outline copy_{from,to}_user() selection"
(Yury Norov)
Simplify the usercopy code by removing the selectability of inlining
copy_{from,to}_user().
- "ocfs2: validate inline xattr header consumers" (ZhengYuan Huang)
Fix a number of possible issues in the ocfs2 xattr code
- "lib and lib/cmdline enhancements" (Dmitry Antipov)
Provide additional robustness checking in the cmdline handling code
and its in-kernel testing and selftests
- "cleanup the RAID6 P/Q library" (Christoph Hellwig)
Clean up the RAID6 P/Q library to match the recent updates to the
RAID 5 XOR library and other CRC/crypto libraries
- "ocfs2: harden inode validators against forged metadata" (Michael
Bommarito)
Add three structural checks to OCFS2 dinode validation so malformed
on-disk fields are rejected before ocfs2_populate_inode() copies them
into the in-core inode
- "lib/raid: replace __get_free_pages() call with kmalloc()" (Mike
Rapoport)
Clean up the lib/raid code by using kmalloc() in more places
* tag 'mm-nonmm-stable-2026-06-21-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (108 commits)
ocfs2: fix circular locking dependency in ocfs2_dio_end_io_write
ocfs2: fix NULL h_transaction deref in ocfs2_assure_trans_credits
lib: interval_tree_test: validate benchmark parameters
ocfs2: avoid moving extents to occupied clusters
treewide: fix transposed "sign" typos and update spelling.txt
ocfs2: fix UBSAN array-index-out-of-bounds in ocfs2_sum_rightmost_rec
fat: reject BPB volumes whose data area starts beyond total sectors
selftests/uevent: increase __UEVENT_BUFFER_SIZE to avoid ENOBUFS on busy systems
lib/test_firmware: allocate the configured into_buf size
fs: efs: remove unneeded debug prints
checkpatch: cuppress warnings when Reported-by: is followed by Link:
MAINTAINERS: add Alexander as a kcov reviewer
mailmap: update Alexander Sverdlin's Email addresses
fs: fat: inode: replace sprintf() with scnprintf()
ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent
ocfs2: fix race between ocfs2_control_install_private() and ocfs2_control_release()
ocfs2/dlm: require a ref for locking_state debugfs open
ocfs2: reject FITRIM ranges shorter than a cluster
ocfs2: validate fast symlink target during inode read
ocfs2: add journal NULL check in ocfs2_checkpoint_inode()
...
|
||
|
Linus Torvalds
|
a552c81ff4 |
mm.git review status for mm-hotfixes-stable..mm-stable
Everything:
Total patches: 321
Reviews/patch: 1.52
Reviewed rate: 68%
Excluding DAMON:
Total patches: 227
Reviews/patch: 2.07
Reviewed rate: 90%
Excluding DAMON and selftests:
Total patches: 203
Reviews/patch: 2.14
Reviewed rate: 91%
Patchsets in this merge:
- The 2 patch series "selftests/mm: clean up build output and verbosity"
from Li Wang removes some noise from the MM selftests build out.
- The 3 patch series "mm: Free contiguous order-0 pages efficiently"
from Ryan Roberts speeds up the freeing of a batch of 0-order pages by
first scanning them for coalescing opportunities. This is applicable to
vfree() and to the releasing of frozen pages.
- The 11 patch series "mm/damon: introduce DAMOS failed region quota
charge ratio" from SeongJae Park addresses a DAMOS usability issue: The
DAMOS quota often exhausts prematurely because it charges for all memory
attempted, causing slow and inconsistent performance when actions fail
on unreclaimable memory.
To fix this, a new feature lets users set a smaller, flexible quota
charge ratio (via a numerator and denominator) for failed regions.
Since failed actions cause less overhead, reducing their quota cost
ensures more predictable and efficient DAMOS processing
- The 8 patch series "selftests/cgroup: improve zswap tests robustness
and support large page sizes" from Li Wang fixes various spurious
failures and improves the overall robustness of the cgroup zswap
selftests.
- The 3 patch series "fix MAP_DROPPABLE not supported errno" from
Anthony Yznaga fixes an issue in the mlock selftests on arm32.
- The 2 patch series "mm: huge_memory: clean up defrag sysfs with
shared" from Breno Leitao does some maintenance work in the huge_memory
code.
- The 3 patch series "treewide: fixup gfp_t printks" from Brendan
Jackman uses the special vprintf() gfp_t conversion in various places.
- The 6 patch series "mm: Fix vmemmap optimization accounting and
initialization" from Muchun Song fixes several bugs in the vmemmap
optimization, mainly around incorrect page accounting and memmap
initialization in the DAX and memory hotplug paths. It also fixes
pageblock migratetype initialization and struct page initialization for
ZONE_DEVICE compound pages.
- The 4 patch series "mm/damon: repost non-hotfix reviewed patches in
damon/next tree" from is a sprinkle of unrelated minor bugfixes for
DAMON.
- The 3 patch series "mm: remove page_mapped()" from David Hildenbrand
remove this function from the tree, replacing it with folio_mapped().
- The 10 patch series "mm/damon: let DAMON be paused and resumed" from
SeongJae Park permits DAMON to be paused and resumed without losing its
current state.
- The 3 patch series "kasan: hw_tags: Disable tagging for stack and
page-tables" from Muhammad Usama Anjum simplifies and speeds up kasan by
removing its ineffective tagging of stacks and page tables.
- The 7 patch series "mm/damon/reclaim,lru_sort: monitor all system rams
by default" from SeongJae Park simplifies deployment on diverse hardware
like NUMA systems by updating DAMON_RECLAIM and DAMON_LRU_SORT to
automatically monitor the physical address range covering all System RAM
areas by default, replacing the overly restrictive behavior that only
targeted the single largest memory block to save on negligible overhead.
- The 2 patch series "mm/damon/sysfs: document filters/ directory as
deprecated" from SeongJae Park updates some DAMON docs.
- The 8 patch series "mm: use spinlock guards for zone lock" from Dmitry
Ilvokhin switches zone->lock handling over to using the guard()
mechanisms.
- The 2 patch series "mm/filemap: tighten mmap_miss hit accounting" from
fujunjie fixes a flaw where the mmap_miss counter over-credited page
cache hits during fault-arounds and page-fault retries. This results in
significant reduction of redundant synchronous mmap readahead I/O,
drastically cutting down execution time and gigabytes read for sparse
random or strided memory access workloads.
- The 2 patch series "selftests/cgroup: Fix false positive failures in
test_percpu_basic" from Li Wang fixes a couple of false-positives in the
cgroup kmem selftests.
- The 2 patch series "mm/damon/reclaim: support monitoring intervals
auto-tuning" from SeongJae Park adds a new parameter to DAMON permitting
DAMON_RECLAIM to automatically tune DAMON's sampling and aggregation
intervals.
- The 2 patch series "mm/damon/stat: add kdamond_pid parameter" from
SeongJae Park chnges DAMON_STAT to provide the pid of its kdamond.
- The 2 patch series "mm/kmemleak: dedupe verbose scan output" from
Breno Leitao removes large amounts of duplicated backtraces from the
verbose-mode kmemleak output.
- The 8 patch series "mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 1)"
from David Hildenbrand reduces our use of CONFIG_HAVE_BOOTMEM_INFO_NODE,
with a view to removing it entirely in a later series.
- The 2 patch series "mm/damon: validate min_region_size to be power of
2" from Liew Rui Yan prevents users from passing a non-power-of-2 value
of `addr_unit', as this later results in undesirable behavior.
- The 2 patch series "mm: document read_pages and simplify usage" from
Frederick Mayle does as claimed.
- The 3 patch series "tools/mm/page-types: Fix misc bugs" from Ye Liu
fixes three issues in tools/mm/page-types.c.
- The 4 patch series "mm: misc cleanups from __GFP_UNMAPPED series" from
Brendan Jackman implements several cleanups in the page allocator and
related code.
- The 12 patch series "mm, swap: swap table phase IV: unify allocation"
from Kairui Song unifies the allocation and charging of anon and shmem
swap in folios, provides better synchronization, consolidates the
metadata management, hence dropping the static array and map, and
improves performance.
- The 28 patch series "mm/damon: introduce data attributes monitoring"
from SeongJae Park extends DAMON for monitoring general data attributes
other than accesses.
- The 5 patch series "mm/vmalloc: free unused pages on vrealloc()
shrink" from Shivam Kalra implements the TODO in vrealloc() to unmap and
free unused pages when shrinking across a page boundary.
- The 3 patch series "mm/damon: documentation and comment fixes" from
niecheng does as advertised.
- The 3 patch series "remove mmap_action success, error hooks" from
Lorenzo Stoakes eliminates custom hooks from mmap_action by removing the
problematic success_hook which allowed drivers to improperly access
uninitialized VMAs. It replaces the error_hook with a simple error-code
field and updates the memory char driver accordingly.
- The 14 patch series "mm/damon: minor improvements for code readability
and tests" from SeongJae Park implements minor improvements in code
readability and tests for DAMON.
- The 2 patch series "mm/damon: fix macro arguments and clarify quota
goals doc" from Maksym Shcherba does those things.
- The 2 patch series "userfaultfd: merge fs/userfaultfd.c into
mm/userfaultfd.c" from Mike Rapoport performs that code movement.
- The 15 patch series "mm/mglru: improve reclaim loop and dirty folio"
from Kairui Song and others cleans up and slightly improves MGLRU's
reclaim loop and dirty writeback handling. Large performance
improvements are measured.
- The 3 patch series "use vma locks for proc/pid/{smaps|numa_maps}
reads" from Suren Baghdasaryan uses per-vma locks when reading
/proc/pid/smaps and /proc/pid/numa_maps similar to reduce contention on
central mmap_lock.
- The 2 patch series "refactors thpsize_shmem_enabled_store() and
thpsize_shmem_enabled_show()" from Ran Xiaokai provides some cleanup
work in the THP code.
- The 2 patch series "selftests/memfd: fix compilation warnings" from
Konstantin Khorenko fixes a few build glitches in the memfd selftest
code.
- The 4 patch series "memcg: shrink obj_stock_pcp and cache multiple
objcgs" from Shakeel Butt resolves a 68% performance regression caused
by NUMA-node cache thrashing around struct obj_stock_pcp by shrinking
its existing fields and expanding it into a multi-slot array that caches
up to five obj_cgroup pointers per CPU, allowing per-node variants of
the same memcg to coexist within a single 64-byte cache line.
- The 2 patch series "zram: writeback fixes" from Sergey Senozhatsky
addresses a couple of unrelated zram writeback issues.
- The 9 patch series "mm: switch THP shrinker to list_lru" from Johannes
Weiner resolves NUMA-awareness issues and streamlines callsite
interaction by refactoring and extending the list_lru API to completely
replace the complex, open-coded deferred split queue for Transparent
Huge Pages (THPs).
- The 2 patch series "mm: improve large folio readahead for exec memory"
from Usama Arif improves large-folio readahead on systems like 64K-page
arm64 by preventing the mmap_miss check from permanently disabling
target-oriented VM_EXEC readahead, and by generalizing the
force_thp_readahead gate to support mappings with any usefully large
maximum folio order under the cache cap.
- The 6 patch series "userfaultfd/pagemap: pre-existing fixes" from
Kiryl Shutsemau fixes a bunch of minor issues in the
userfaultfd/pagemap, all of which were flagged by Sashiko review of
proposed new material.
- The 5 patch series "mm/sparse-vmemmap: Provide generic
vmemmap_set_pmd() and vmemmap_check_pmd()" from Muchun Song provides
generic versions of these two functions so the four arch-specific
implementations can be removed.
- The 2 patch series "mm/swap, PM: hibernate: fix swapoff race in
uswsusp by pinning swap device" from Youngjun Park addresses a
uswsusp-vs-swapoff race and reduces the swap device reference
taking/releasing frequency.
- The 2 patch series "mm/hmm: A fix and a selftest" from Dev Jain does
as claimed.
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Merge tag 'mm-stable-2026-06-18-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- "selftests/mm: clean up build output and verbosity" (Li Wang)
Remove some noise from the MM selftests build
- "mm: Free contiguous order-0 pages efficiently" (Ryan Roberts)
Speed up the freeing of a batch of 0-order pages by first scanning
them for coalescing opportunities. This is applicable to vfree() and
to the releasing of frozen pages
- "mm/damon: introduce DAMOS failed region quota charge ratio"
(SeongJae Park)
Address a DAMOS usability issue: The DAMOS quota often exhausts
prematurely because it charges for all memory attempted, causing slow
and inconsistent performance when actions fail on unreclaimable
memory.
To fix this, a new feature lets users set a smaller, flexible quota
charge ratio (via a numerator and denominator) for failed regions.
Since failed actions cause less overhead, reducing their quota cost
ensures more predictable and efficient DAMOS processing
- "selftests/cgroup: improve zswap tests robustness and support large
page sizes" (Li Wang)
Fix various spurious failures and improves the overall robustness of
the cgroup zswap selftests
- "fix MAP_DROPPABLE not supported errno" (Anthony Yznaga)
Fix an issue in the mlock selftests on arm32
- "mm: huge_memory: clean up defrag sysfs with shared" (Breno Leitao)
Some maintenance work in the huge_memory code
- "treewide: fixup gfp_t printks" (Brendan Jackman)
Use the special vprintf() gfp_t conversion in various places
- "mm: Fix vmemmap optimization accounting and initialization" (Muchun
Song)
Fix several bugs in the vmemmap optimization, mainly around incorrect
page accounting and memmap initialization in the DAX and memory
hotplug paths. It also fixes pageblock migratetype initialization and
struct page initialization for ZONE_DEVICE compound pages
- "mm/damon: repost non-hotfix reviewed patches in damon/next tree"
A sprinkle of unrelated minor bugfixes for DAMON
- "mm: remove page_mapped()" (David Hildenbrand)
Remove this function from the tree, replacing it with folio_mapped()
- "mm/damon: let DAMON be paused and resumed" (SeongJae Park)
Allow DAMON to be paused and resumed without losing its current state
- "kasan: hw_tags: Disable tagging for stack and page-tables" (Muhammad
Usama Anjum)
Simplify and speed up kasan by removing its ineffective tagging of
stacks and page tables
- "mm/damon/reclaim,lru_sort: monitor all system rams by default"
(SeongJae Park)
Simplify deployment on diverse hardware like NUMA systems by updating
DAMON_RECLAIM and DAMON_LRU_SORT to automatically monitor the
physical address range covering all System RAM areas by default,
replacing the overly restrictive behavior that only targeted the
single largest memory block to save on negligible overhead
- "mm/damon/sysfs: document filters/ directory as deprecated" (SeongJae
Park)
Update some DAMON docs
- "mm: use spinlock guards for zone lock" (Dmitry Ilvokhin)
Switch zone->lock handling over to using the guard() mechanisms
- "mm/filemap: tighten mmap_miss hit accounting" (fujunjie)
Fix a flaw where the mmap_miss counter over-credited page cache hits
during fault-arounds and page-fault retries. This results in
significant reduction of redundant synchronous mmap readahead I/O,
drastically cutting down execution time and gigabytes read for sparse
random or strided memory access workloads
- "selftests/cgroup: Fix false positive failures in test_percpu_basic"
(Li Wang)
Fix a couple of false-positives in the cgroup kmem selftests
- "mm/damon/reclaim: support monitoring intervals auto-tuning"
(SeongJae Park)
Add a new parameter to DAMON permitting DAMON_RECLAIM to
automatically tune DAMON's sampling and aggregation intervals
- "mm/damon/stat: add kdamond_pid parameter" (SeongJae Park)
Change DAMON_STAT to provide the pid of its kdamond
- "mm/kmemleak: dedupe verbose scan output" (Breno Leitao)
Remove large amounts of duplicated backtraces from the verbose-mode
kmemleak output
- "mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 1)" (David
Hildenbrand)
Reduce our use of CONFIG_HAVE_BOOTMEM_INFO_NODE, with a view to
removing it entirely in a later series
- "mm/damon: validate min_region_size to be power of 2" (Liew Rui Yan)
Prevent users from passing a non-power-of-2 value of `addr_unit', as
this later results in undesirable behavior
- "mm: document read_pages and simplify usage" (Frederick Mayle)
- "tools/mm/page-types: Fix misc bugs" (Ye Liu)
Fix three issues in tools/mm/page-types.c
- "mm: misc cleanups from __GFP_UNMAPPED series" (Brendan Jackman)
Implement several cleanups in the page allocator and related code
- "mm, swap: swap table phase IV: unify allocation" (Kairui Song)
Unify the allocation and charging of anon and shmem swap in folios,
provides better synchronization, consolidates the metadata
management, hence dropping the static array and map, and improves
performance
- "mm/damon: introduce data attributes monitoring" (SeongJae Park(
Extend DAMON to monitor general data attributes other than accesses
- "mm/vmalloc: free unused pages on vrealloc() shrink" (Shivam Kalra)
Implement the TODO in vrealloc() to unmap and free unused pages when
shrinking across a page boundary
- "mm/damon: documentation and comment fixes" (niecheng)
- "remove mmap_action success, error hooks" (Lorenzo Stoakes)
Eliminate custom hooks from mmap_action by removing the problematic
success_hook which allowed drivers to improperly access uninitialized
VMAs. It replaces the error_hook with a simple error-code field and
updates the memory char driver accordingly
- "mm/damon: minor improvements for code readability and tests"
(SeongJae Park)
- "mm/damon: fix macro arguments and clarify quota goals doc" (Maksym
Shcherba)
- "userfaultfd: merge fs/userfaultfd.c into mm/userfaultfd.c" (Mike
Rapoport)
- "mm/mglru: improve reclaim loop and dirty folio" (Kairui Song and
others)
Clean up and slightly improves MGLRU's reclaim loop and dirty
writeback handling. Large performance improvements are measured
- "use vma locks for proc/pid/{smaps|numa_maps} reads" (Suren
Baghdasaryan)
Use per-vma locks when reading /proc/pid/smaps and numa_maps similar
to reduce contention on central mmap_lock
- "refactors thpsize_shmem_enabled_store() and thpsize_shmem_enabled_show()"
(Ran Xiaokai)
Some cleanup work in the THP code
- "selftests/memfd: fix compilation warnings" (Konstantin Khorenko)
Fix a few build glitches in the memfd selftest code.
- "memcg: shrink obj_stock_pcp and cache multiple objcgs" (Shakeel
Butt)
Resolve a 68% performance regression caused by NUMA-node cache
thrashing around struct obj_stock_pcp by shrinking its existing
fields and expanding it into a multi-slot array that caches up to
five obj_cgroup pointers per CPU, allowing per-node variants of the
same memcg to coexist within a single 64-byte cache line.
- "zram: writeback fixes" (Sergey Senozhatsky)
address a couple of unrelated zram writeback issues
- "mm: switch THP shrinker to list_lru" (Johannes Weiner)
Resolve NUMA-awareness issues and streamlines callsite interaction by
refactoring and extending the list_lru API to completely replace the
complex, open-coded deferred split queue for Transparent Huge Pages
- "mm: improve large folio readahead for exec memory" (Usama Arif)
Improve large-folio readahead on systems like 64K-page arm64 by
preventing the mmap_miss check from permanently disabling
target-oriented VM_EXEC readahead, and by generalizing the
force_thp_readahead gate to support mappings with any usefully large
maximum folio order under the cache cap.
- "userfaultfd/pagemap: pre-existing fixes" (Kiryl Shutsemau)
Fix a bunch of minor issues in the userfaultfd/pagemap, all of which
were flagged by Sashiko review of proposed new material
- "mm/sparse-vmemmap: Provide generic vmemmap_set_pmd() and
vmemmap_check_pmd()" (Muchun Song)
Provide generic versions of these two functions so the four
arch-specific implementations can be removed.
- "mm/swap, PM: hibernate: fix swapoff race in uswsusp by pinning swap
device" (Youngjun Park)
Address a uswsusp-vs-swapoff race and reduces the swap device
reference taking/releasing frequency.
- "mm/hmm: A fix and a selftest" (Dev Jain)
* tag 'mm-stable-2026-06-18-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (321 commits)
selftests/mm/hmm-tests: test pagemap reads of PMD device-private entries
fs/proc/task_mmu: do not warn on seeing non-migration pmd entry
lib/test_hmm: check alloc_page_vma() return value and handle OOM
mm/compaction: cap compact_gap() at COMPACT_CLUSTER_MAX
mm/swap: remove redundant swap device reference in alloc/free
mm/swap, PM: hibernate: fix swapoff race in uswsusp by pinning swap device
mm/filemap: use folio_next_index() for start
vmalloc: fix NULL pointer dereference in is_vm_area_hugepages()
sparc/mm: drop vmemmap_check_pmd helper and use generic code
loongarch/mm: drop vmemmap_check_pmd helper and use generic code
riscv/mm: drop vmemmap_pmd helpers and use generic code
arm64/mm: drop vmemmap_pmd helpers and use generic code
mm/sparse-vmemmap: provide generic vmemmap_set_pmd() and vmemmap_check_pmd()
rust: page: mark Page::nid as inline
userfaultfd: build __VMA_UFFD_FLAGS from config-gated masks
userfaultfd: gate must_wait writability check on pte_present()
mm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade
fs/proc/task_mmu: fix hugetlb self-deadlock in pagemap_scan_pte_hole()
fs/proc/task_mmu: use huge_page_size() in pagemap_scan_hugetlb_entry()
fs/proc/task_mmu: fix make_uffd_wp_huge_pte() prot-update race
...
|
||
|
Linus Torvalds
|
c98d767b34 |
Arm:
"This is a bit of an odd merge window on the KVM/arm64 front. There is
absolutely no new feature in the pull request. It is purely fixes,
because it is simply becoming too hard to review new stuff when so
many AI-fuelled fixes hit the list".
- Significant cleanup of the vgic-v5 PPI support which was merged in
7.1. This makes the code more maintainable, and squashes a couple
of bugs in the meantime.
- Set of fixes for the handling of the MMU in an NV context,
particularly VNCR-triggered faults. S1POE support is fixed
as well.
- Large set of pKVM fixes, mostly addressing recurring issues
around hypervisor tracking of donated pages in obscure cases
where the donation could fail and leave things in a bizarre
state.
- Fixes for the so-called "lazy vgic init", which resulted in
sleeping operations in non-preemptible sections. This turned
out to be far more invasive than initially expected...
- Reduce the overhead of L1/L2 context switch by not touching
the FP registers.
- Fix the way non-implemented page sizes are dealt with when
a guest insist on using them for S2 translation.
- The usual set of low-impact fixes and cleanups all over the map.
Loongarch:
- On a request for lazy FPU load, load all FPU state that the VM
supports instead of enabling only the part (FPU, LSX or LASX)
that caused the FPU load request.
- Some enhancements about interrupt injection.
- Some bug fixes and other small changes.
RISC-V:
- Batch G-stage TLB flushes for GPA range based page table updates
- Convert HGEI line management to fully per-HART
- Fix missing CSR dirty marking when FWFT state updated via ONE_REG
- Fix stale FWFT feature exposure to Guest/VM
- Speed up dirty logging write faults using MMU rwlock and atomic
PTE updates using cmpxchg() for permission-only changes
- Use flexible array for APLIC IRQ state
- Use kvm_slot_dirty_track_enabled() for logging enable check on
a memslot
- Avoid skipping valid pages in kvm_riscv_gstage_wp_range()
- Avoid skipping valid pages in kvm_riscv_gstage_unmap_range()
- Use endian-specific __lelong for NACL shared memory
S390:
- KVM_PRE_FAULT_MEMORY support
- Support for 2G hugepages
- Support for the ASTFLEIE 2 facility
- Support for fast inject using kvm_arch_set_irq_inatomic
- Fix potential leak of uninitialized bytes
- A few more misc gmap fixes.
x86:
- Generic support for the more granular permissions allowed by EPT,
namely "read" (which was previously usurping the U bit) and
separate execution bits for kernel and userspace.
- Do not assume that all page tables start with U=1/W=1/NX=0 at the
root, as AMD GMET needs to have U=0 at the root.
- Introduce common assembly macros for use within Intel and AMD
vendor-specific vmentry code. This touches the SPEC_CTRL handling,
which is now entirely done in assembly for Intel (by reusing the
AMD code that already existed), and register save/restore which
uses some macro magic to compute the offsets in the struct. Both
of these are preparatory changes for upcoming APX support.
- Clean up KVM's register tracking and storage, primarily to prepare for
APX support, which expands the maximum number of GPRs from 16 to 32.
- Keep a single copy of the PDPTRs rather than two, since architecturally
there is just one.
- Handle EXIT_FASTPATH_EXIT_USERSPACE in vendor code to ensure vendor code
gets a chance to handle things like reaping the PML buffer.
- Update KVM's view of PV async enabling if and only if the MSR write fully
succeeds.
- Fix a variety of issues where the emulator doesn't honor guest-debug state,
and clean up related code along the way.
- Synthesize EPT Violation and #NPF "error code" bits when injecting faults
into L1 that didn't originate in hardware (in which case the VMCS/VMCB
doesn't hold relevant information).
- Add support for virtualizing (well, emulating) AMD's flavor of CPL>0 CPUID
faulting.
- Clean up the GPR APIs so that KVM's use of "raw" is consistent, and fix a
variety of minor bugs along the way.
- Fix an OOB memory access due to not checking the VP ID when handling a
Hyper-V PV TLB flush for L2.
- Fix a bug in the mediated PMU's handling of fixed counters that allowed the
guest to bypass the PMU event filter.
- Allow userspace to return EAGAIN when handling SNP and TDX hypercalls, so
the KVM can forward a "retry" status code to the guest, and reserve all
unused error codes for future usage.
- Overhaul the TDP MMU => S-EPT code to move as much S-EPT specific logic as
possible into the TDX code, and to funnel (almost) all S-EPT updates into
a single chokepoint. The motivation is largely to prepare for upcoming
Dynamic PAMT support, but the cleanups are nice to have on their own.
- Plug a hole in shadow page table handling, where KVM fails to recursively
zap nested EPT/NPT shadow page tables when the nested hypervisor tears
down its own EPT/NPT page tables from the bottom up
x86 (Intel):
- Support for nested MBEC (Mode-Based Execute Control), see above in the
generic section; also run with MBEC enabled even for non-nested mode.
- Use the kernel's "enum pg_level" in the TDX APIs instead of the TDX-Module's
level definitions (which are 0-based).
- Rework the TDX memory APIs to not require/assume that guest memory is
backed by "struct page" (in prepartion for guest_memfd hugepage support).
- Fix a largely benign bug where KVM TDX would incorrectly state it could
emulate several x2APIC MSRs.
- Use the "safe" WRMSR API when proxying LBR MSR writes as the to-be-written
value is guest controlled and completely unvalidated.
x86 (AMD):
- Support for nested GMET (Guest Mode Execution Trap), see above in the
generic section; also run with GMET enabled even for non-nested mode.
- Fixes and minor cleanups to GHCB handling, on top of the earlier work
already merged into 7.1-rc.
- Ensure KVM's copy of CR0 and CR3 are up-to-date prior to invoking
fastpath handlers.
- Add support for virtualizing gPAT (KVM previously just used L1's PAT when
running L2).
- Fix goofs where KVM mishandles side effects (e.g. single-step and PMC
updates) when emulating VMRUN.
- Fix a variety of bugs in AVIC's handling of x2APIC MSR interception, most
notably where KVM didn't disable interception of IRR, ISR, and TMR regs.
- Add support for virtualizing Host-Only/Guest-Only bits in the mediated PMU.
- Don't advertise support for unusable VM types, and account for VM types
that are disabled by firmware, e.g. to mitigate security vulnerabilities.
- Rewrite the SEV {en,de}crypt debug ioctls as they were riddle with bugs and
unnecessarily complicated, and add comprehensive tests.
- Clean up and deduplicate the SEV page pinning code.
- Fix minor goofs related to writing back CPUID information after firmware
rejects a CPUID page for an SNP vCPU.
Generic:
- Rename invalidate_begin() to invalidate_start() throughout KVM to follow
the kernel's nomenclature, e.g. for mmu_notifiers.
- Use guard() to cleanup up various KVM+VFIO flows.
- Minor cleanups.
guest_memfd:
- Return -EEXIST instead of -EINVAL if userspace attempts to bind a gmem
range to multiple memslots, and fix the test that was supposed to ensure
KVM returns -EEXIST.
- Treat memslot binding offsets and sizes as unsigned values to fix a bug
where KVM interprets a large "offset + size" as a negative value and allows
a nonsensical offset.
- Use the inode number instead of the page offset for the NUMA interleaving
index to fix a bug where the effective index would jump by two for
consecutive pages (the caller also adds in the page offset).
Selftests:
- Randomize the dirty log test's delay when reaping the bitmap on the first
pass, as always waiting only 1ms hid a KVM RISC-V bug as the test reaped the
bitmap before KVM could build up enough state to hit the bug.
- A pile of one-off fixes and cleanups.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"arm64:
This is a bit of an odd merge window on the KVM/arm64 front. There
is absolutely no new feature in the pull request. It is purely
fixes, because it is simply becoming too hard to review new stuff
when so many AI-fuelled fixes hit the list.
- Significant cleanup of the vgic-v5 PPI support which was merged in
7.1. This makes the code more maintainable, and squashes a couple
of bugs in the meantime
- Set of fixes for the handling of the MMU in an NV context,
particularly VNCR-triggered faults. S1POE support is fixed as well
- Large set of pKVM fixes, mostly addressing recurring issues around
hypervisor tracking of donated pages in obscure cases where the
donation could fail and leave things in a bizarre state
- Fixes for the so-called "lazy vgic init", which resulted in
sleeping operations in non-preemptible sections. This turned out to
be far more invasive than initially expected..
- Reduce the overhead of L1/L2 context switch by not touching the FP
registers
- Fix the way non-implemented page sizes are dealt with when a guest
insist on using them for S2 translation
- The usual set of low-impact fixes and cleanups all over the map
Loongarch:
- On a request for lazy FPU load, load all FPU state that the VM
supports instead of enabling only the part (FPU, LSX or LASX) that
caused the FPU load request
- Some enhancements about interrupt injection
- Some bug fixes and other small changes
RISC-V:
- Batch G-stage TLB flushes for GPA range based page table updates
- Convert HGEI line management to fully per-HART
- Fix missing CSR dirty marking when FWFT state updated via ONE_REG
- Fix stale FWFT feature exposure to Guest/VM
- Speed up dirty logging write faults using MMU rwlock and atomic PTE
updates using cmpxchg() for permission-only changes
- Use flexible array for APLIC IRQ state
- Use kvm_slot_dirty_track_enabled() for logging enable check on a
memslot
- Avoid skipping valid pages in kvm_riscv_gstage_wp_range()
- Avoid skipping valid pages in kvm_riscv_gstage_unmap_range()
- Use endian-specific __lelong for NACL shared memory
S390:
- KVM_PRE_FAULT_MEMORY support
- Support for 2G hugepages
- Support for the ASTFLEIE 2 facility
- Support for fast inject using kvm_arch_set_irq_inatomic
- Fix potential leak of uninitialized bytes
- A few more misc gmap fixes
x86:
- Generic support for the more granular permissions allowed by EPT,
namely "read" (which was previously usurping the U bit) and
separate execution bits for kernel and userspace
- Do not assume that all page tables start with U=1/W=1/NX=0 at the
root, as AMD GMET needs to have U=0 at the root
- Introduce common assembly macros for use within Intel and AMD
vendor-specific vmentry code. This touches the SPEC_CTRL handling,
which is now entirely done in assembly for Intel (by reusing the
AMD code that already existed), and register save/restore which
uses some macro magic to compute the offsets in the struct. Both of
these are preparatory changes for upcoming APX support
- Clean up KVM's register tracking and storage, primarily to prepare
for APX support, which expands the maximum number of GPRs from 16
to 32
- Keep a single copy of the PDPTRs rather than two, since
architecturally there is just one
- Handle EXIT_FASTPATH_EXIT_USERSPACE in vendor code to ensure vendor
code gets a chance to handle things like reaping the PML buffer
- Update KVM's view of PV async enabling if and only if the MSR write
fully succeeds
- Fix a variety of issues where the emulator doesn't honor
guest-debug state, and clean up related code along the way
- Synthesize EPT Violation and #NPF "error code" bits when injecting
faults into L1 that didn't originate in hardware (in which case the
VMCS/VMCB doesn't hold relevant information)
- Add support for virtualizing (well, emulating) AMD's flavor of
CPL>0 CPUID faulting
- Clean up the GPR APIs so that KVM's use of "raw" is consistent, and
fix a variety of minor bugs along the way
- Fix an OOB memory access due to not checking the VP ID when
handling a Hyper-V PV TLB flush for L2
- Fix a bug in the mediated PMU's handling of fixed counters that
allowed the guest to bypass the PMU event filter
- Allow userspace to return EAGAIN when handling SNP and TDX
hypercalls, so the KVM can forward a "retry" status code to the
guest, and reserve all unused error codes for future usage
- Overhaul the TDP MMU => S-EPT code to move as much S-EPT specific
logic as possible into the TDX code, and to funnel (almost) all
S-EPT updates into a single chokepoint. The motivation is largely
to prepare for upcoming Dynamic PAMT support, but the cleanups are
nice to have on their own
- Plug a hole in shadow page table handling, where KVM fails to
recursively zap nested EPT/NPT shadow page tables when the nested
hypervisor tears down its own EPT/NPT page tables from the bottom
up
x86 (Intel):
- Support for nested MBEC (Mode-Based Execute Control), see above in
the generic section; also run with MBEC enabled even for non-nested
mode
- Use the kernel's "enum pg_level" in the TDX APIs instead of the
TDX-Module's level definitions (which are 0-based)
- Rework the TDX memory APIs to not require/assume that guest memory
is backed by "struct page" (in prepartion for guest_memfd hugepage
support)
- Fix a largely benign bug where KVM TDX would incorrectly state it
could emulate several x2APIC MSRs
- Use the "safe" WRMSR API when proxying LBR MSR writes as the
to-be-written value is guest controlled and completely unvalidated
x86 (AMD):
- Support for nested GMET (Guest Mode Execution Trap), see above in
the generic section; also run with GMET enabled even for non-nested
mode
- Fixes and minor cleanups to GHCB handling, on top of the earlier
work already merged into 7.1-rc
- Ensure KVM's copy of CR0 and CR3 are up-to-date prior to invoking
fastpath handlers
- Add support for virtualizing gPAT (KVM previously just used L1's
PAT when running L2)
- Fix goofs where KVM mishandles side effects (e.g. single-step and
PMC updates) when emulating VMRUN
- Fix a variety of bugs in AVIC's handling of x2APIC MSR
interception, most notably where KVM didn't disable interception of
IRR, ISR, and TMR regs
- Add support for virtualizing Host-Only/Guest-Only bits in the
mediated PMU
- Don't advertise support for unusable VM types, and account for VM
types that are disabled by firmware, e.g. to mitigate security
vulnerabilities
- Rewrite the SEV {en,de}crypt debug ioctls as they were riddle with
bugs and unnecessarily complicated, and add comprehensive tests
- Clean up and deduplicate the SEV page pinning code
- Fix minor goofs related to writing back CPUID information after
firmware rejects a CPUID page for an SNP vCPU
Generic:
- Rename invalidate_begin() to invalidate_start() throughout KVM to
follow the kernel's nomenclature, e.g. for mmu_notifiers
- Use guard() to cleanup up various KVM+VFIO flows
- Minor cleanups
guest_memfd:
- Return -EEXIST instead of -EINVAL if userspace attempts to bind a
gmem range to multiple memslots, and fix the test that was supposed
to ensure KVM returns -EEXIST
- Treat memslot binding offsets and sizes as unsigned values to fix a
bug where KVM interprets a large "offset + size" as a negative
value and allows a nonsensical offset
- Use the inode number instead of the page offset for the NUMA
interleaving index to fix a bug where the effective index would
jump by two for consecutive pages (the caller also adds in the page
offset)
Selftests:
- Randomize the dirty log test's delay when reaping the bitmap on the
first pass, as always waiting only 1ms hid a KVM RISC-V bug as the
test reaped the bitmap before KVM could build up enough state to
hit the bug
- A pile of one-off fixes and cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (326 commits)
KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level
KVM: x86: Fix shadow paging use-after-free due to unexpected role
KVM: s390: Introducing kvm_arch_set_irq_inatomic fast inject
KVM: s390: Enable adapter_indicators_set to use mapped pages
KVM: s390: Add map/unmap ioctl and clean mappings post-guest
riscv: kvm: Use endian-specific __lelong for NACL shared memory
KVM: selftests: access_tracking_perf_test: bump number of NUMA nodes to 32
KVM: s390: vsie: Implement ASTFLEIE facility 2
KVM: s390: vsie: Refactor handle_stfle
s390/sclp: Detect ASTFLEIE 2 facility
KVM: s390: Minor refactor of base/ext facility lists
KVM: x86/mmu: move pdptrs out of the MMU
KVM: x86: check that kvm_handle_invpcid is only invoked with shadow paging
KVM: nSVM: invalidate cached PDPTRs across nested NPT transitions
KVM: nVMX: remove unnecessary code in prepare_vmcs02_rare
KVM: x86: remove nested_mmu from mmu_is_nested()
KVM: arm64: vgic-its: Make ABI commit helpers return void
KVM: s390: Initialize KVM_S390_GET_CMMA_BITS memory
LoongArch: KVM: Add missing slots_lock for device register/unregister
LoongArch: KVM: Validate irqchip index in irqfd routing
...
|
||
|
Linus Torvalds
|
f32a375ecc |
RISC-V updates for v7.2
- Prevent get_free_mem_region() from returning regions that are
unmappable in certain circumstances by defining
DIRECT_MAP_PHYSMEM_END for RISC-V
- Fix an early boot problem with kexec_file when the amount of
installed physical memory installed on the system exceeds the direct
map size, which is possible in certain RISC-V virtual memory modes
- Unconditionally sfence.vma in the new vmalloc area handling code in
the page fault handler, since even the presence of Svvptc doesn't
guarantee that the CPU won't immediately fault again after the
exception handler completes and subsequently crash
- Fix ftrace_graph_ret_addr() to use the correct task pointer
(aligning with what other architectures do)
- Fix the misaligned access performance checking code in cases when
performance is specified on the kernel command line and when CPUs
have been brought offline and back online
- Get rid of a bogus address offset in the non-frame-pointer version
of walk_stackframe(), aligning it with the frame pointer-based code
- Fix a RISC-V kfence issue causing bogus use-after-free warnings
- Add ARCH_HAS_CC_CAN_LINK for RISC-V, which needs different compiler
command line flags than other architectures
- Implement _THIS_IP_ using RISC-V-specific assembly, which seems to
be less brittle (from a compiler point of view) than taking the
address of a label
- Reduce kernel startup overhead by defining
HAVE_BUILDTIME_MCOUNT_SORT, since arch/riscv meets all the
requirements
- Patch the CFI vDSO during alternatives processing, not only the
standard vDSO
- Fix a potential memory leak in the cacheinfo code
- Clean up kernel/setup.c:add_resource() to pass along the return
value from insert_resource() and to improve the display of
resource ranges
- Clean up our purgatory.[ch] by aligning our purgatory() prototype
to what's in arch/x86, and by cleaning up verify_sha256_digest()
- Clean up cpu_is_stopped() to align its function a little more
closely to its name
- Replace some unbounded string function usage in get_early_cmdline()
and the ptdump code with strscpy()
- Replace sprintf() with sysfs_emit() in cpu_show_ghostwrite() for
safer bounds checking
- Standardize how compiler output flags are specified in the RISC-V
kselftests, aligning them with what other architectures do
- Use the Linux-generic cmp_int() macro in place of an open-coded
"cmp_3way()" macro in kernel/module-sections.c
- Panic early in boot if IRQ handler stacks can't be allocated rather
than pretending to continue normally
- Add support for Eswin SoCs in the RISC-V defconfig
- Remove some unnecessary conditionals in sbi_hsm_hart_{start,stop}()
- Clean up some Kconfig infelicities found by Kconfirm
- Replace an open-coded version of min() in the kexec_elf code with
the standard min() function
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Merge tag 'riscv-for-linus-7.2-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Paul Walmsley:
- Prevent get_free_mem_region() from returning regions that are
unmappable in certain circumstances by defining
DIRECT_MAP_PHYSMEM_END for RISC-V
- Fix an early boot problem with kexec_file when the amount of
installed physical memory installed on the system exceeds the direct
map size, which is possible in certain RISC-V virtual memory modes
- Unconditionally sfence.vma in the new vmalloc area handling code in
the page fault handler, since even the presence of Svvptc doesn't
guarantee that the CPU won't immediately fault again after the
exception handler completes and subsequently crash
- Fix ftrace_graph_ret_addr() to use the correct task pointer (aligning
with what other architectures do)
- Fix the misaligned access performance checking code in cases when
performance is specified on the kernel command line and when CPUs
have been brought offline and back online
- Get rid of a bogus address offset in the non-frame-pointer version of
walk_stackframe(), aligning it with the frame pointer-based code
- Fix a RISC-V kfence issue causing bogus use-after-free warnings
- Add ARCH_HAS_CC_CAN_LINK for RISC-V, which needs different compiler
command line flags than other architectures
- Implement _THIS_IP_ using RISC-V-specific assembly, which seems to be
less brittle (from a compiler point of view) than taking the address
of a label
- Reduce kernel startup overhead by defining
HAVE_BUILDTIME_MCOUNT_SORT, since arch/riscv meets all the
requirements
- Patch the CFI vDSO during alternatives processing, not only the
standard vDSO
- Fix a potential memory leak in the cacheinfo code
- Clean up kernel/setup.c:add_resource() to pass along the return value
from insert_resource() and to improve the display of resource ranges
- Clean up our purgatory.[ch] by aligning our purgatory() prototype to
what's in arch/x86, and by cleaning up verify_sha256_digest()
- Clean up cpu_is_stopped() to align its function a little more closely
to its name
- Replace some unbounded string function usage in get_early_cmdline()
and the ptdump code with strscpy()
- Replace sprintf() with sysfs_emit() in cpu_show_ghostwrite() for
safer bounds checking
- Standardize how compiler output flags are specified in the RISC-V
kselftests, aligning them with what other architectures do
- Use the Linux-generic cmp_int() macro in place of an open-coded
"cmp_3way()" macro in kernel/module-sections.c
- Panic early in boot if IRQ handler stacks can't be allocated rather
than pretending to continue normally
- Add support for Eswin SoCs in the RISC-V defconfig
- Remove some unnecessary conditionals in sbi_hsm_hart_{start,stop}()
- Clean up some Kconfig infelicities found by Kconfirm
- Replace an open-coded version of min() in the kexec_elf code with
the standard min() function
* tag 'riscv-for-linus-7.2-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (36 commits)
riscv: traps_misaligned: Avoid redundant unaligned access speed probe
riscv: misaligned: Fix fast_unaligned_access_speed_key init
riscv: also select ARCH_KEEP_MEMBLOCK if kexec is selected
riscv: alternative: Also patch the CFI vDSO
riscv: alternative: Pass vDSO start as parameter to apply_vdso_alternatives()
riscv: alternative: Use IS_ENABLED() over ifdeffery for apply_vdso_alternatives()
riscv: vdso: Always declare vdso_start symbols
riscv: kexec: use min to simplify riscv_kexec_elf_load
riscv: panic if IRQ handler stacks cannot be allocated
riscv: mm: Unconditionally sfence.vma for spurious fault
riscv: mm: Use the bitmap API for new_valid_map_cpus
riscv: mm: Rename new_vmalloc into new_valid_map_cpus
riscv: kfence: Call mark_new_valid_map() for kfence_unprotect()
riscv: mm: Extract helper mark_new_valid_map()
riscv: stacktrace: Remove bogus -0x4 offset in non-FP walk_stackframe
riscv: cacheinfo: Fix node reference leak in populate_cache_leaves
riscv: kexec_file: Constrain segment placement to direct map
riscv: mm: Define DIRECT_MAP_PHYSMEM_END
riscv: defconfig: Enable Eswin SoCs
riscv: cpu_ops_sbi: No need to be bothered to check ret.error
...
|
||
|
Linus Torvalds
|
aab799b1bd |
soc: devicetree updates for 7.2
There are fewer devicetree updates this time that the last few ones, with
five SoC types getting added:
- Qualcomm Dragonwing IPQ9650 is a new wireless networking SoC using
four Cortex-A55 and one Cortex-A78 core, which is a significant
upgrade from older generations
- ZTE zx297520v3 is an older low-end wireless SoC using a single
Cortex-A53 core, which so far can only run 32-bit kernels. This brings
back the ZX family of chips that was removed in 2021 after support
for the original zx296702 and zx296718 chips was never completed.
- Renesas R-Car M3Le (R8A779MD) is a variant of the R-Car M3-N (R8A77965)
automotive SoC.
- Apple t8122 (M3) is the 2023 generation of their laptop SoCs,
which has now been reverse-engineered to the point of having initial
kernel support for five laptop models.
- ASPEED AST27xx is their first baseboard managment controller using
a 64-bit core, the Cortex-A35, following earlier generations using
ARMv5/v6/v7 CPUs.
These all come with one or more initial boards, and in total there
are 39 new boards getting added across SoC families, including:
- Two NAS boxes using the old Cortina Systems Gemini SoC based on
an ARMv4 FA526 CPU core
- 18 industrial embedded boards using NXP i.MX6/8/9 and LX2160A
SoCs from Variscite, Toradex and SolidRun, plus a number of
overlays for combinations with additional boards
- One new carrier board and SoM using TI K3 AM62x, in addition to
new overlays for older SoMs
- Two new boards using Spacemit K3 (no relation with TI) RISC-V
SoCs.
- Three phones from Google, Nothing and Motorola, all using Qualcomm
Snapdragon SoCs
- AST26xx BMC support for two server boards
While there is still a significant number of patches improving hardware
support for the existing boards across vendors (NXP, Qualcomm, Renesas,
Rockchips, Mediatek, ...), a much smaller number of cleanups and warning
fixes have made it in this time.
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Merge tag 'soc-dt-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC devicetree updates from Arnd Bergmann:
"There are fewer devicetree updates this time that the last few ones,
with five SoC types getting added:
- Qualcomm Dragonwing IPQ9650 is a new wireless networking SoC using
four Cortex-A55 and one Cortex-A78 core, which is a significant
upgrade from older generations
- ZTE zx297520v3 is an older low-end wireless SoC using a single
Cortex-A53 core, which so far can only run 32-bit kernels. This
brings back the ZX family of chips that was removed in 2021 after
support for the original zx296702 and zx296718 chips was never
completed.
- Renesas R-Car M3Le (R8A779MD) is a variant of the R-Car M3-N
(R8A77965) automotive SoC.
- Apple t8122 (M3) is the 2023 generation of their laptop SoCs, which
has now been reverse-engineered to the point of having initial
kernel support for five laptop models.
- ASPEED AST27xx is their first baseboard managment controller using
a 64-bit core, the Cortex-A35, following earlier generations using
ARMv5/v6/v7 CPUs.
These all come with one or more initial boards, and in total there are
39 new boards getting added across SoC families, including:
- Two NAS boxes using the old Cortina Systems Gemini SoC based on an
ARMv4 FA526 CPU core
- 18 industrial embedded boards using NXP i.MX6/8/9 and LX2160A SoCs
from Variscite, Toradex and SolidRun, plus a number of overlays for
combinations with additional boards
- One new carrier board and SoM using TI K3 AM62x, in addition to new
overlays for older SoMs
- Two new boards using Spacemit K3 (no relation with TI) RISC-V SoCs.
- Three phones from Google, Nothing and Motorola, all using Qualcomm
Snapdragon SoCs
- AST26xx BMC support for two server boards
While there is still a significant number of patches improving
hardware support for the existing boards across vendors (NXP,
Qualcomm, Renesas, Rockchips, Mediatek, ...), a much smaller number
of cleanups and warning fixes have made it in this time"
* tag 'soc-dt-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (665 commits)
arm64: dts: aspeed: Fix duplicate pinctrl labels and address scheme
arm64: dts: bst: enable eMMC controller in C1200
dt-bindings: display/lvds-codec: add ti,sn65lvds93
arm64: dts: allwinner: a523: Add missing GPIO interrupt
arm64: dts: lx2160a-rev2: avoid 32-bit pcie window system ram overlap
arm64: dts: aspeed: Add initial AST27xx SoC device tree
arm64: Kconfig: Add ASPEED SoC family Kconfig support
dt-bindings: arm: aspeed: Add AST2700 board compatible
arm64: dts: allwinner: a523: add gpadc node
arm64: dts: allwinner: Add EL2 virtual timer interrupt
ARM: dts: sun8i: a83t: Add MIPI CSI-2 controller node
dt-bindings: media: sun6i-a31-isp: Add optional interconnect properties
dt-bindings: media: sun6i-a31-csi: Add optional interconnect properties
arm64: dts: imx{91,93}-phyboard-segin: Add peb-av-18 overlays
arm64: dts: imx93-var-som-symphony: enable ADC
arm64: dts: imx93-var-som-symphony: enable TPM3 PWM
arm64: dts: imx93-var-som-symphony: keep RGB_SEL low
arm64: dts: imx93-var-som-symphony: enable UART7
arm64: dts: imx93-var-som-symphony: add TPM support
arm64: dts: imx91-var-som-symphony: fix RGB_SEL handling
...
|
||
|
Linus Torvalds
|
59a6c7ac0a |
bitmap updates for v7.2
- new handy helper FIELD_GET_SIGNED() (Yury); - arch test_and_set_bit_lock() and clear_bit_unlock() cleanup (Randy); - __bf_shf() simplification (Yury); - bitmap_print_to_pagebuf() removal (Yury); - RISCV/bitrev conditional support (Jindie, Yury); -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEEi8GdvG6xMhdgpu/4sUSA/TofvsgFAmowS0sACgkQsUSA/Tof vshqLgwAw2RkV8ZHAniyPgz4noGztto+fcD70UbMgkh48n46PSKIUPCUvOj4RGHc Nzcjg6VkHLlypb7U3fHoXOHhkt+nTt+OeVDtZCmr8OzlRYmWXAo9TptfalDAlH1A OucRocjYSkwl/nbuYk0EQ/0+AcTFlfVTeyyus6wUYt7Nj1ncCNjKF2K5EjtF4aoQ JiA4d9LKWCIN4qFodP/9aFDzLX5MvqHgvOmBPSSFZKkMAer9HHCa/V3jHH3JMh21 bMPjZvaPUCI9oywLL+pDe0RRhP1CYFevxJ/Tnpcx0elV+CekrzuSsM3zpRbPt6hR 0P+8VVzUuoI8yth5mSH1gvUn9ZDvDeognTpKpXR574lB83A8Ub/Gu/NGMXO3TY0q mtuVbI5ZG0dCqahjEZvJQJmZ/qqbmwDhQDBtPS0x3S9XyzhNAga+JFpr6FXhULx8 b8ZrDPc5BGLtTt5aBOAgpN10CeFM8JHxku1B489sqRXQWaeKW++GkVfVTZ9UOK1E 8c3l/1Bl =z8f4 -----END PGP SIGNATURE----- Merge tag 'bitmap-for-7.2' of https://github.com/norov/linux Pull bitmap updates from Yury Norov: "This includes the new FIELD_GET_SIGNED() helper, bitmap_print_to_pagebuf() removal, RISCV/bitrev support, and a couple cleanups. - new handy helper FIELD_GET_SIGNED() (Yury) - arch test_and_set_bit_lock() and clear_bit_unlock() cleanup (Randy) - __bf_shf() simplification (Yury) - bitmap_print_to_pagebuf() removal (Yury) - RISCV/bitrev conditional support (Jindie, Yury)" * tag 'bitmap-for-7.2' of https://github.com/norov/linux: MAINTAINERS: BITOPS: include bitrev.[ch] arch/riscv: Add bitrev.h file to support rev8 and brev8 bitops: Define generic___bitrev8/16/32 for reuse lib/bitrev: Introduce GENERIC_BITREVERSE arch: select HAVE_ARCH_BITREVERSE conditionally on BITREVERSE bitmap: fix find helper documentation bitmap: drop bitmap_print_to_pagebuf() cpumask: switch cpumap_print_to_pagebuf() to using scnprintf() bitfield: wire __bf_shf to __builtin_ctzll bitops: use common function parameter names ptp: switch to using FIELD_GET_SIGNED() rtc: rv3032: switch to using FIELD_GET_SIGNED() wifi: rtw89: switch to using FIELD_GET_SIGNED() iio: mcp9600: switch to using FIELD_GET_SIGNED() iio: pressure: bmp280: switch to using FIELD_GET_SIGNED() iio: magnetometer: yas530: switch to using FIELD_GET_SIGNED() iio: intel_dc_ti_adc: switch to using FIELD_GET_SIGNED() x86/extable: switch to using FIELD_GET_SIGNED() bitfield: add FIELD_GET_SIGNED() |
||
|
Linus Torvalds
|
8479bb8c44 |
Modules changes for v7.2-rc1
- Add a missing return value check for module_extend_max_pages() to prevent a kernel oops on memory allocation failure. - Force sh_addr to 0 for architecture-specific module sections on arm, arm64, m68k, and riscv. This prevents non-zero section addresses when linking modules with ld.bfd -r, which may cause tools to misbehave and result in worse compressibility. - Replace pr_warn! with pr_warn_once! for set_param null pointer warnings in Rust abstractions, now that the _once variant is available. Note that as part of our maintainer rotation, Petr Pavlu will be taking over module subsystem pull requests for the next six months. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSE9au1u/dCZerzchhaByWrOaGnegUCaiycUAAKCRBaByWrOaGn ekFVAP9dELwbhP0QjWFhewtSMDYXsvqyEMZ91XAc0DX84/8LVgD+MGIPkaH2rO+Q saUUE+X6zAYpug5pop/GtDpufPRrLwI= =0DZj -----END PGP SIGNATURE----- Merge tag 'modules-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux Pull modules updates from Sami Tolvanen: - Add a missing return value check for module_extend_max_pages() to prevent a kernel oops on memory allocation failure. - Force sh_addr to 0 for architecture-specific module sections on arm, arm64, m68k, and riscv. This prevents non-zero section addresses when linking modules with ld.bfd -r, which may cause tools to misbehave and result in worse compressibility. - Replace pr_warn! with pr_warn_once! for set_param null pointer warnings in Rust abstractions, now that the _once variant is available. * tag 'modules-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux: rust: module_param: add missing newline to pr_warn_once module: decompress: check return value of module_extend_max_pages() rust: module_param: use `pr_warn_once!` for null pointer warning module, riscv: force sh_addr=0 for arch-specific sections module, m68k: force sh_addr=0 for arch-specific sections module, arm64: force sh_addr=0 for arch-specific sections module, arm: force sh_addr=0 for arch-specific sections |
||
|
Linus Torvalds
|
9c87e61e3c |
bpf-next-7.2
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Merge tag 'bpf-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf updates from Alexei Starovoitov:
"Major changes:
- Recover from BPF arena page faults using a scratch page and add
ptep_try_set() for lockless empty-slot installs on x86 and arm64.
This allows BPF kfuncs to access arena pointers directly.
The 'arena_direct_access' stable branch was created for this work
and was pulled into sched-ext and bpf-next trees (Tejun Heo, Kumar
Kartikeya Dwivedi)
- Lift old restriction and support 6+ arguments in BPF programs and
kfuncs on x86 and arm64 (Yonghong Song, Puranjay Mohan)
Other features and fixes:
- Add 24-bit BTF vlen and reclaim unused bits in the BTF UAPI to ease
addition of new BTF kinds (Alan Maguire)
- Raise the maximum BPF call chain depth from 8 to 16 frames (Alexei
Starovoitov)
- Refactor object relationship tracking in the verifier and fix a
dynptr use-after-free bug (Amery Hung)
- Harden the signed program loader and reject exclusive maps as inner
maps (Daniel Borkmann)
- Replace the verifier min/max bounds fields with a circular number
(cnum) representation and improve 32->64 bit range refinements
(Eduard Zingerman)
- Introduce the arena library and runtime (libarena) with a buddy
allocator, rbtree and SPMC queue data structures, ASAN support and
a parallel test harness. Allow subprograms to return arena pointers
and switch to a BTF type-tag based __arena annotation (Emil
Tsalapatis)
- Cache build IDs in the sleepable stackmap path and avoid faultable
build ID reads under mm locks (Ihor Solodrai)
- Introduce the tracing_multi link to attach a single BPF program to
many kernel functions at once. Allow specifying the uprobe_multi
target via FD (Jiri Olsa)
- Extend the bpf_list family of kfuncs with bpf_list_add/del(), and
bpf_list_is_first/is_last/empty() (Kaitao Cheng)
- Extend the BPF syscall with common attributes support for
prog_load, btf_load and map_create (Leon Hwang)
- Wrap rhashtable as BPF map (Mykyta Yatsenko, Herbert Xu)
- Add sleepable support for tracepoint programs and fix deadlocks in
LRU map due to NMI reentry (Mykyta Yatsenko)
- Fix OOB access in bpf_flow_keys, fix nullness analysis of inner
arrays, enforce write checks for global subprograms (Nuoqi Gui)
- Report the maximum combined stack depth and print a breakdown of
instructions processed per subprogram (Paul Chaignon)
- Add an XDP load-balancer benchmark and arm64 JIT support for stack
arguments (Puranjay Mohan)
- Add kfuncs to traverse over wakeup_sources (Samuel Wu)
- Allow sleepable BPF programs to use LPM trie maps directly (Vlad
Poenaru)
- Many more fixes and cleanups across the verifier, BTF, sockmap,
devmap, bpffs, security hooks, s390/riscv/loongarch JITs,
rqspinlock, libbpf, bpftool, selftests"
* tag 'bpf-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (336 commits)
selftests/bpf: Work around llvm stack overflow in crypto progs
selftests/bpf: add test for bpf_msg_pop_data() overflow
bpf, sockmap: fix integer overflow in bpf_msg_pop_data() bounds check
sockmap: Fix use-after-free in udp_bpf_recvmsg()
bpf, sockmap: keep sk_msg copy state in sync
bpf, sockmap: Fix wrong rsge offset in bpf_msg_push_data()
bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data()
selftsets/bpf: Retry map update on helper_fill_hashmap()
selftests/bpf: Add test for sleepable lsm_cgroup rejection
selftests/bpf: Add test to verify the fix for bpf_setsockopt() helper
bpf: Fix bpf_get/setsockopt to tos for ipv4-mapped ipv6 socket
selftests/bpf: Avoid static LLVM linking for cross builds
selftests/bpf: Use common CFLAGS for urandom_read
selftests/bpf: Initialize operation name before use
tools/bpf: build: Append extra cflags
libbpf: Initialize CFLAGS before including Makefile.include
bpftool: Append extra host flags
bpftool: Avoid adding EXTRA_CFLAGS to HOST_CFLAGS
bpftool: Pass host flags to bootstrap libbpf
selftests/bpf: correct CONFIG_PPC64 macro name in comment
...
|
||
|
Linus Torvalds
|
0d8c113493 |
This update includes the following changes:
API:
- Drop support for off-CPU cryptography in af_alg.
- Document that af_alg is *always* slower.
- Document the deprecation of af_alg.
- Remove zero-copy support from skcipher and aead in af_alg.
- Cap AEAD AD length to 0x80000000 in af_alg.
- Free default RNG on module exit.
Algorithms:
- Fix vli multiplication carry overflow in ecc.
- Drop unused cipher_null crypto_alg.
- Remove unused variants of drbg.
- Use lib/crypto in drbg.
- Use memcpy_from/to_sglist in authencesn.
- Allow authenc(hmac(sha{256,384}),cts(cbc(aes))) in FIPS mode.
- Disallow RSA PKCS#1 SHA-1 sig algs in FIPS mode.
- Filter out async aead implementations at alloc in krb5.
- Fix non-parallel fallback by rstoring callback in pcrypt.
- Validate poly1305 template argument in chacha20poly1305.
Drivers:
- Add sysfs PCI reset support to qat.
- Add KPT support for GEN6 devices to qat.
- Remove unused character device and ioctls from qat.
- Add support for hw access via SMCC to mtk.
- Remove prng support from crypto4xx.
- Remove prng support from hisi-trng.
- Remove prng support from sun4i-ss.
- Remove prng support from xilinx-trng.
- Remove loongson-rng.
- Remove exynos-rng.
Others:
- Remove support for AIO on sockets.
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Merge tag 'v7.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Drop support for off-CPU cryptography in af_alg
- Document that af_alg is *always* slower
- Document the deprecation of af_alg
- Remove zero-copy support from skcipher and aead in af_alg
- Cap AEAD AD length to 0x80000000 in af_alg
- Free default RNG on module exit
Algorithms:
- Fix vli multiplication carry overflow in ecc
- Drop unused cipher_null crypto_alg
- Remove unused variants of drbg
- Use lib/crypto in drbg
- Use memcpy_from/to_sglist in authencesn
- Allow authenc(hmac(sha{256,384}),cts(cbc(aes))) in FIPS mode
- Disallow RSA PKCS#1 SHA-1 sig algs in FIPS mode
- Filter out async aead implementations at alloc in krb5
- Fix non-parallel fallback by rstoring callback in pcrypt
- Validate poly1305 template argument in chacha20poly1305
Drivers:
- Add sysfs PCI reset support to qat
- Add KPT support for GEN6 devices to qat
- Remove unused character device and ioctls from qat
- Add support for hw access via SMCC to mtk
- Remove prng support from crypto4xx
- Remove prng support from hisi-trng
- Remove prng support from sun4i-ss
- Remove prng support from xilinx-trng
- Remove loongson-rng
- Remove exynos-rng
Others:
- Remove support for AIO on sockets"
* tag 'v7.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (196 commits)
crypto: tegra - fix refcount leak in tegra_se_host1x_submit()
crypto: rng - Free default RNG on module exit
crypto: testmgr - allow authenc(hmac(sha{256,384}),cts(cbc(aes))) in FIPS mode
hwrng: jh7110 - fix refcount leak in starfive_trng_read()
crypto: atmel-ecc - drop dead code in atmel_ecdh_max_size
crypto: cavium/cpt - fix DMA cleanup using wrong loop index
crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
MAINTAINERS: make myself the maintainer of the Qualcomm QCE driver
crypto: amcc - convert irq_of_parse_and_map to platform_get_irq
crypto: sun4i-ss - Remove insecure and unused rng_alg
hwrng: xilinx - Move xilinx-rng into drivers/char/hw_random/
crypto: xilinx-trng - Replace crypto_drbg_ctr_df() with HMAC-SHA512
crypto: xilinx-trng - Fix return value of xtrng_hwrng_trng_read()
crypto: xilinx-trng - Remove crypto_rng interface
crypto: exynos-rng - Remove exynos-rng driver
hwrng: hisi-trng - Move hisi-trng into drivers/char/hw_random/
crypto: hisi-trng - Remove crypto_rng interface
crypto: loongson - Remove broken and unused loongson-rng
crypto: crypto4xx - Remove insecure and unused rng_alg
crypto: qat - validate RSA CRT component lengths
...
|
||
|
Paolo Bonzini
|
c6f1b611c6 |
KVM/riscv changes for 7.2
- Batch G-stage TLB flushes for GPA range based page table updates - Convert HGEI line management to fully per-HART - Fix missing CSR dirty marking when FWFT state updated via ONE_REG - Fix stale FWFT feature exposure to Guest/VM - Speed up dirty logging write faults using MMU rwlock and atomic PTE updates using cmpxchg() for permission-only changes - Use flexible array for APLIC IRQ state - Use kvm_slot_dirty_track_enabled() for logging enable check on a memslot - Avoid skipping valid pages in kvm_riscv_gstage_wp_range() - Avoid skipping valid pages in kvm_riscv_gstage_unmap_range() - Use endian-specific __lelong for NACL shared memory -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEZdn75s5e6LHDQ+f/rUjsVaLHLAcFAmoudUMACgkQrUjsVaLH LAec2w/+KlBSD6qzmIKXzvjTbCXO+HxARYFMbPDURGPdDXL6HWD842LvS/0txfg/ 5ttVrVsNJ0aD/X3DGKwd2p0OFbBMgKsNBWKu4HA9EzIAQK0oJs07kTGTWhQm6dqa JzNxF0WwntVt154b6JM6F6UYxxpFNxCi6osfn+R880PN/Jm1ZadZBSQ4eoe+MABd nERjuhwUDOh6fpl+kItryxKTKiBzX48aB3fWyA9SAYNOjFwWf7DHM0qwjNwQ+jl4 3KqCrAr0TuSShJKI5PoJzFhDcJRzKSJpesUlXUjEnuBXq/aCgtJL2Sp7wEpIA7I3 paiG8BL/x4tQC8TbYx3kobgo2EwUodBNJtHhgZE3sh/LHPb7e7fVajeW6RPWFkWL JuLKZvq+51Is1ztstTU1E6JQRE1OvH2qycSBIW3Nf1IclZGrqn9AhZyoZvWB8fTt 8FuHeh3K1QrRymKRev7djlXzqoB33boeFq07EqyPG8AKHx8Ca4z4ABywyPL6j1+c Xg44mVF2l79APUCoWV6cyHfwtK0s0qxjx6lt8F2bwIkSPLZbAR+r7O4SqPo5LPVC h3qe/u7vrfj13nrnVrhrNy/ozh/Z2wk3XYfdZFqiyJzx57TVRdhrmBTrmFUqf5l+ E1euC+VFZoCKzgpG8U3a4TKx0VpkmDQ1Ix2sKZobYcSSQvQ+uLo= =++bw -----END PGP SIGNATURE----- Merge tag 'kvm-riscv-7.2-1' of https://github.com/kvm-riscv/linux into HEAD KVM/riscv changes for 7.2 - Batch G-stage TLB flushes for GPA range based page table updates - Convert HGEI line management to fully per-HART - Fix missing CSR dirty marking when FWFT state updated via ONE_REG - Fix stale FWFT feature exposure to Guest/VM - Speed up dirty logging write faults using MMU rwlock and atomic PTE updates using cmpxchg() for permission-only changes - Use flexible array for APLIC IRQ state - Use kvm_slot_dirty_track_enabled() for logging enable check on a memslot - Avoid skipping valid pages in kvm_riscv_gstage_wp_range() - Avoid skipping valid pages in kvm_riscv_gstage_unmap_range() - Use endian-specific __lelong for NACL shared memory |
||
|
Linus Torvalds
|
186d3c4e92 |
A series of updates for the VDSO:
- Remove the redundant CONFIG_GENERIC_TIME_VSYSCALL after converting the
remaining users over.
- Rework and sanitize the MIPS VDSO handling, so it does not handle the
time related VDSO if there is no VDSO capable clocksource available.
Also stop mapping VDSO data pages unconditionally even if there is no
usage possible.
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Merge tag 'timers-vdso-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull vdso updates from Thomas Gleixner:
- Remove the redundant CONFIG_GENERIC_TIME_VSYSCALL after converting
the remaining users over.
- Rework and sanitize the MIPS VDSO handling, so it does not handle the
time related VDSO if there is no VDSO capable clocksource available.
Also stop mapping VDSO data pages unconditionally even if there is no
usage possible.
* tag 'timers-vdso-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip:
MIPS: VDSO: Fold MIPS_CLOCK_VSYSCALL into MIPS_GENERIC_GETTIMEOFDAY
MIPS: VDSO: Gate microMIPS restriction on GCC version
MIPS: VDSO: Fold MIPS_DISABLE_VDSO into MIPS_GENERIC_GETTIMEOFDAY
clocksource/drivers/mips-gic-timer: Only use VDSO_CLOCKMODE_GIC when it is a available
MIPS: csrc-r4k: Only use VDSO_CLOCKMODE_R4K when it is a available
MIPS: VDSO: Only map the data pages when the vDSO is used
MIPS: Introduce Kconfig MIPS_GENERIC_GETTIMEOFDAY
vdso/datastore: Always provide symbol declarations
MAINTAINERS: Add include/linux/vdso_datastore.h to vDSO block
vdso/gettimeofday: Rename __arch_get_vdso_u_timens_data()
vdso/treewide: Drop GENERIC_TIME_VSYSCALL
vdso/vsyscall: Gate update_vsyscall() behind CONFIG_GENERIC_GETTIMEOFDAY
riscv: vdso: Drop CONFIG_GENERIC_TIME_VSYSCALL guard around syscall fallbacks
|
||
|
Linus Torvalds
|
13e1a6d6a1 |
Interrupt core code changes:
- Rework of /proc/interrupt handling:
/proc/interrupts was subject to micro optimizations for a long time,
but most of the low hanging fruit was left on the table. This rework
addresses the major time consuming issues:
- Printing a long series of zeros one by one via a format string
instead of counting subsequent zeros and emitting a string
constant.
- Simplify and cache the conditions whether interrupts should be printed
- Use a proper iteration over the interrupt descriptor xarray
instead of walking and testing one by one.
- Provide helper functions for the architecture code to emit the
architecture specific counters
- Convert the counter structure in x86 to an array, which
simplifies the output and add mechanisms to suppress unused
architecture interrupts, which just occupy space for
nothing. Adopt the new core mechanisms.
This adjusts the gdb scripts related to interrupt counter statitics
to work with the new mechanisms.
- Prevent a string overflow in the /proc/irq/$N/ directory name
creation code.
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Merge tag 'irq-core-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull interrupt core updates from Thomas Gleixner:
- Rework of /proc/interrupt handling:
/proc/interrupts was subject to micro optimizations for a long time,
but most of the low hanging fruit was left on the table. This rework
addresses the major time consuming issues:
- Printing a long series of zeros one by one via a format string
instead of counting subsequent zeros and emitting a string
constant.
- Simplify and cache the conditions whether interrupts should be
printed
- Use a proper iteration over the interrupt descriptor xarray
instead of walking and testing one by one.
- Provide helper functions for the architecture code to emit the
architecture specific counters
- Convert the counter structure in x86 to an array, which
simplifies the output and add mechanisms to suppress unused
architecture interrupts, which just occupy space for nothing.
Adopt the new core mechanisms.
This adjusts the gdb scripts related to interrupt counter statistics
to work with the new mechanisms.
- Prevent a string overflow in the /proc/irq/$N/ directory name
creation code.
* tag 'irq-core-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip:
x86/irq: Add missing 's' back to thermal event printout
genirq/proc: Speed up /proc/interrupts iteration
genirq/proc: Runtime size the chip name
genirq: Expose irq_find_desc_at_or_after() in core code
genirq: Add rcuref count to struct irq_desc
genirq/proc: Increase default interrupt number precision to four
genirq: Calculate precision only when required
genirq: Cache the condition for /proc/interrupts exposure
genirq/manage: Make NMI cleanup RT safe
genirq: Expose nr_irqs in core code
scripts/gdb: Update x86 interrupts to the array based storage
x86/irq: Move IOAPIC misrouted and PIC/APIC error counts into irq_stats
x86/irq: Suppress unlikely interrupt stats by default
x86/irq: Make irqstats array based
genirq/proc: Utilize irq_desc::tot_count to avoid evaluation
genirq/proc: Avoid formatting zero counts in /proc/interrupts
x86/irq: Optimize interrupts decimals printing
genirq/proc: Size interrupt directory names for 10-digit interrupt numbers
|
||
|
Linus Torvalds
|
36808d5e98 |
Driver core changes for 7.2-rc1
- deferred probe:
- Fix race where deferred probe timeout work could be permanently
canceled by using mod_delayed_work()
- Fix missing jiffies conversion in deferred_probe_extend_timeout()
- Guard timeout extension with delayed_work_pending() to prevent
premature firing
- Use system_percpu_wq instead of the deprecated system_wq
- Update deferred_probe_timeout documentation
- device:
- Replace direct struct device bitfield access (can_match, dma_iommu,
dma_skip_sync, dma_ops_bypass, state_synced, dma_coherent,
of_node_reused, offline, offline_disabled) with flag-based
accessors using bit operations
- Reject devices with unregistered buses
- Delete unused DEVICE_ATTR_PREALLOC()
- Add low-level device attribute macros with const show/store
callbacks, allowing device attributes to reside in read-only memory
- Move core device attributes to read-only memory
- Constify group array pointers in driver_add_groups() /
driver_remove_groups(), struct bus_type, and struct device_driver
- device property:
- Fix fwnode reference leak in fwnode_graph_get_endpoint_by_id()
- Initialize all fields of fwnode_handle in fwnode_init()
- Provide swnode_get()/swnode_put() wrappers around kobject_get/put()
- Allow passing struct software_node_ref_args pointers directly to
PROPERTY_ENTRY_REF()
- driver_override:
- Migrate amba, cdx, vmbus, and rpmsg to the generic driver_override
infrastructure, fixing a UAF from unsynchronized access to
driver_override in bus match() callbacks
- Remove the now-unused driver_set_override()
- firmware loader:
- Fix recursive lock deadlock in device_cache_fw_images() when async
work falls back to synchronous execution
- Fix device reference leak in firmware_upload_register()
- platform:
- Pass KBUILD_MODNAME through the platform driver registration macro
to create module symlinks in sysfs for built-in drivers; move
module_kset initialization to a pure_initcall and tegra cbb
registration to core_initcall to ensure correct ordering
- Pass THIS_MODULE implicitly through a coresight_init_driver() macro
- sysfs:
- Upgrade OOB write detection in sysfs_kf_seq_show() from printk to
WARN
- Add return value clamping to sysfs_kf_read()
- Rust:
- ACPI:
- Fix missing match data for PRP0001 by exporting
acpi_of_match_device()
- Auxiliary:
- Replace drvdata() with dedicated registration data on
auxiliary_device. drvdata() exposed the driver's bus device
private data beyond the driver's own scope, creating ordering
constraints and forcing the data to outlive all registrations
that access it. Registration data is instead scoped structurally
to the Registration object, making lifecycle ordering enforced
by construction rather than convention.
- Rust-native device driver lifetimes (HRT):
- Allow Rust device drivers to carry a lifetime parameter on their
bus device private data, tied to the device binding scope -- the
interval during which a bus device is bound to a driver. Device
resources like pci::Bar<'a> and IoMem<'a> can be stored directly
in the driver's bus device private data with a lifetime bounded
by the binding scope, so the compiler enforces at build time that
they do not outlive the binding. This removes Devres indirection
from every access site and eliminates try_access() failure paths
in destructors.
Bus driver traits use a Generic Associated Type (GAT)
Data<'bound> to introduce the lifetime on the private data,
rather than parameterizing the Driver trait itself. Auxiliary
registration data, where the lifetime is not introduced by a
trait callback but must be threaded through Registration, uses
the ForLt trait (a type-level abstraction for types generic over
a lifetime).
- Misc:
- Fix DT overlayed devices not probing by reverting the broken
treewide overlay fix and re-running fw_devlink consumer pickup when
an overlay is applied to a bound device
- Use root_device_register() for faux bus root device; add sanity
check for failed bus init
- Fix dev_has_sync_state() data race with READ_ONCE() and move it to
base.h
- Avoid spurious device_links warning when removing a device while
its supplier is unbinding
- Switch ISA bus to dynamic root device
- Fix suspicious RCU usage in kernfs_put()
- Remove devcoredump exit callback
- Constify devfreq_event_class
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Merge tag 'driver-core-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core updates from Danilo Krummrich:
"Deferred probe:
- Fix race where deferred probe timeout work could be permanently
canceled by using mod_delayed_work()
- Fix missing jiffies conversion in deferred_probe_extend_timeout()
- Guard timeout extension with delayed_work_pending() to prevent
premature firing
- Use system_percpu_wq instead of the deprecated system_wq
- Update deferred_probe_timeout documentation
device:
- Replace direct struct device bitfield access (can_match, dma_iommu,
dma_skip_sync, dma_ops_bypass, state_synced, dma_coherent,
of_node_reused, offline, offline_disabled) with flag-based
accessors using bit operations
- Reject devices with unregistered buses
- Delete unused DEVICE_ATTR_PREALLOC()
- Add low-level device attribute macros with const show/store
callbacks, allowing device attributes to reside in read-only memory
- Move core device attributes to read-only memory
- Constify group array pointers in driver_add_groups() /
driver_remove_groups(), struct bus_type, and struct device_driver
device property:
- Fix fwnode reference leak in fwnode_graph_get_endpoint_by_id()
- Initialize all fields of fwnode_handle in fwnode_init()
- Provide swnode_get()/swnode_put() wrappers around kobject_get/put()
- Allow passing struct software_node_ref_args pointers directly to
PROPERTY_ENTRY_REF()
driver_override:
- Migrate amba, cdx, vmbus, and rpmsg to the generic driver_override
infrastructure, fixing a UAF from unsynchronized access to
driver_override in bus match() callbacks
- Remove the now-unused driver_set_override()
firmware loader:
- Fix recursive lock deadlock in device_cache_fw_images() when async
work falls back to synchronous execution
- Fix device reference leak in firmware_upload_register()
platform:
- Pass KBUILD_MODNAME through the platform driver registration macro
to create module symlinks in sysfs for built-in drivers; move
module_kset initialization to a pure_initcall and tegra cbb
registration to core_initcall to ensure correct ordering
- Pass THIS_MODULE implicitly through a coresight_init_driver() macro
sysfs:
- Upgrade OOB write detection in sysfs_kf_seq_show() from printk to
WARN
- Add return value clamping to sysfs_kf_read()
Rust:
- ACPI:
Fix missing match data for PRP0001 by exporting
acpi_of_match_device()
- Auxiliary:
Replace drvdata() with dedicated registration data on
auxiliary_device. drvdata() exposed the driver's bus device private
data beyond the driver's own scope, creating ordering constraints
and forcing the data to outlive all registrations that access it.
Registration data is instead scoped structurally to the
Registration object, making lifecycle ordering enforced by
construction rather than convention.
- Rust-native device driver lifetimes (HRT):
Allow Rust device drivers to carry a lifetime parameter on their
bus device private data, tied to the device binding scope -- the
interval during which a bus device is bound to a driver. Device
resources like pci::Bar<'a> and IoMem<'a> can be stored directly in
the driver's bus device private data with a lifetime bounded by the
binding scope, so the compiler enforces at build time that they do
not outlive the binding. This removes Devres indirection from every
access site and eliminates try_access() failure paths in
destructors.
Bus driver traits use a Generic Associated Type (GAT) Data<'bound>
to introduce the lifetime on the private data, rather than
parameterizing the Driver trait itself. Auxiliary registration
data, where the lifetime is not introduced by a trait callback but
must be threaded through Registration, uses the ForLt trait (a
type-level abstraction for types generic over a lifetime).
Misc:
- Fix DT overlayed devices not probing by reverting the broken
treewide overlay fix and re-running fw_devlink consumer pickup when
an overlay is applied to a bound device
- Use root_device_register() for faux bus root device; add sanity
check for failed bus init
- Fix dev_has_sync_state() data race with READ_ONCE() and move it to
base.h
- Avoid spurious device_links warning when removing a device while
its supplier is unbinding
- Switch ISA bus to dynamic root device
- Fix suspicious RCU usage in kernfs_put()
- Remove devcoredump exit callback
- Constify devfreq_event_class"
* tag 'driver-core-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/driver-core/driver-core: (81 commits)
software node: allow passing reference args to PROPERTY_ENTRY_REF()
driver core: platform: set mod_name in driver registration
coresight: pass THIS_MODULE implicitly through a macro
kernel: param: initialize module_kset in a pure_initcall
soc/tegra: cbb: Move driver registration from pure_initcall to core_initcall
firmware_loader: Fix recursive lock in device_cache_fw_images()
driver core: Use system_percpu_wq instead of system_wq
driver core: remove driver_set_override()
rpmsg: use generic driver_override infrastructure
Drivers: hv: vmbus: use generic driver_override infrastructure
cdx: use generic driver_override infrastructure
amba: use generic driver_override infrastructure
rust: devres: add 'static bound to Devres<T>
samples: rust: rust_driver_auxiliary: showcase lifetime-bound registration data
rust: auxiliary: generalize Registration over ForLt
rust: types: add `ForLt` trait for higher-ranked lifetime support
gpu: nova-core: separate driver type from driver data
samples: rust: rust_driver_pci: use HRT lifetime for Bar
rust: io: make IoMem and ExclusiveIoMem lifetime-parameterized
rust: pci: make Bar lifetime-parameterized
...
|
||
|
Linus Torvalds
|
73f399414a |
Kbuild / Kconfig changes for 7.2
Kbuild:
- Remove broken module linking exclusion for BTF
- Add documentation around how offset header files work
- Include unstripped vDSO libraries in pacman packages
- Bump minimum version of LLVM for building the kernel to 17.0.1 and
clean up unnecessary workarounds
- Use a context manager in run-clang-tools
- Add dist macro value if present to release tag for RPM packages
- Detect and report truncated buf_printf() output in modpost
- Add __llvm_covfun and __llvm_covmap to section whitelist in modpost
- Support Clang's distributed ThinLTO mode
- Remove architecture specific configurations for AutoFDO and Propeller
to ease individual architecture maintenance
Kconfig:
- Add kconfig-sym-check target to look for dangling Kconfig symbol
references and invalid tristate literal values
- Harden against potential NULL pointer dereference
- Fix typo in Kconfig test comment
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
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Merge tag 'kbuild-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild / Kconfig updates from Nathan Chancellor:
"Kbuild:
- Remove broken module linking exclusion for BTF
- Add documentation around how offset header files work
- Include unstripped vDSO libraries in pacman packages
- Bump minimum version of LLVM for building the kernel to 17.0.1 and
clean up unnecessary workarounds
- Use a context manager in run-clang-tools
- Add dist macro value if present to release tag for RPM packages
- Detect and report truncated buf_printf() output in modpost
- Add __llvm_covfun and __llvm_covmap to section whitelist in modpost
- Support Clang's distributed ThinLTO mode
- Remove architecture specific configurations for AutoFDO and
Propeller to ease individual architecture maintenance
Kconfig:
- Add kconfig-sym-check target to look for dangling Kconfig symbol
references and invalid tristate literal values
- Harden against potential NULL pointer dereference
- Fix typo in Kconfig test comment"
* tag 'kbuild-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (31 commits)
kconfig: tests: fix typo in comment
kconfig: Remove the architecture specific config for Propeller
kconfig: Remove the architecture specific config for AutoFDO
modpost: Add __llvm_covfun and __llvm_covmap to section_white_list
kconfig: add kconfig-sym-check static checker
kbuild: Remove unnecessary 'T' modifier in cmd_ar_builtin_fixup
kbuild: distributed build support for Clang ThinLTO
kbuild: move vmlinux.a build rule to scripts/Makefile.vmlinux_a
scripts: modpost: detect and report truncated buf_printf() output
kbuild: rpm-pkg: append %{?dist} macro to Release tag
run-clang-tools: run multiprocessing.Pool as context manager
compiler-clang.h: Drop explicit version number from "all" diagnostic macro
compiler-clang.h: Remove __cleanup -Wunused-variable workaround
kbuild: Remove check for broken scoping with clang < 17 in CC_HAS_ASM_GOTO_OUTPUT
x86/entry/vdso32: Remove conditional omission of '.cfi_offset eflags'
x86/module: Revert "Deal with GOT based stack cookie load on Clang < 17"
x86/build: Drop unnecessary '-ffreestanding' addition to KBUILD_CFLAGS
scripts/Makefile.warn: Drop -Wformat handling for clang < 16
riscv: Drop tautological condition from TOOLCHAIN_NEEDS_OLD_ISA_SPEC
riscv: Remove tautological condition from selection of ARCH_SUPPORTS_CFI
...
|
||
|
Sean Chang
|
52738352a6 |
riscv: kvm: Use endian-specific __lelong for NACL shared memory
When compiling with sparse enabled (C=2), bitwise type warnings are triggered in the RISC-V KVM implementation. This occurs because the user-space data unboxing macro '__get_user_asm' performs implicit casting on restricted types without forcing the compiler's compliance. Additionally, raw 'unsigned long *' pointers are used to access the SBI NACL shared memory, whereas the RISC-V SBI specification mandates that these structures must follow little-endian byte ordering. Fix these by: 1. Adding a '__force' cast to '__get_user_asm()' to safely suppress implicit cast warnings during user-space data fetching. 2. Introducing the '__lelong' type macro, which dynamically resolves to '__le32' or '__le64' depending on XLEN, and replacing 'unsigned long *' with '__lelong *' to enforce proper compile-time endianness checks. Signed-off-by: Sean Chang <seanwascoding@gmail.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20260608155252.4292-1-seanwascoding@gmail.com Signed-off-by: Anup Patel <anup@brainfault.org> |
||
|
Arnd Bergmann
|
564edaca14 |
Allwinner device tree changes for 7.2 - Take 2
Some changes for old chips and some for recent ones. - A83T gained the MIPI CSI-2 receiver - overlays enabled for Pine64 boards - D1s / T113 and H616 gained the high speed timer - T113s watchdog enabled (for reboot) - H616 gained proper SRAM regions - A523 family gained EL2 virtual timer interrupt and GPADC - A523 pinctrl IRQ fix -----BEGIN PGP SIGNATURE----- iQJEBAABCgAuFiEE2nN1m/hhnkhOWjtHOJpUIZwPJDAFAmoqvvMQHHdlbnNAa2Vy bmVsLm9yZwAKCRA4mlQhnA8kMNRXEADaQdsrBggjfKLOo6H42hdkrAFsuMwAzsFR hMVFMlFHYDzaC7Ac+ugCOV2ru2FqQffvOJD/1PlPGQTnQDPNO9m1O7a5G/77b9YM bxhr1/sHno0ZSoF71WaclIPjOlRY4EXnqCAuRqkpo1EsLPy/vv9ijFp9O28ml/p+ lWwFp4oNsH0WOzYOeSYMLt4huA95LIQH0Pba/+Gnm0OHEBYOyV/DUiya1LFJO/11 rWhOsNvbdcI9aPHS4meR8qG26QCEXTtcLA5q0zYtYFvANb2E0pXHf+d9vJ8g6UOz L/KSpmLYGkT0fb7O2FP4azEruYQEPhWptRE+Zc0dGMcyE0uHpdDBq0Al0U3HnyHV fa5FcuNVeVmiOnRagX6w5nkcYjM4Zf/DISPj5rJ8hIHFfH3cH+ePLkZfLIdEoWqy DYklr63MGl2BEMCYeXaix7zjd8KUlLvREWKpiPBonuS1ZnsEU1ij+uLQpZzPo40H GM56ESOHdsMRdyw56iNLZQ0Z0l2ihi89fzETRp3ozJDAdYLeuQN4kAtXgp/9SOHV t0aWaS5EclumXv1lJc8W+moMGeLSI5R86XY0jlJjnlVh5vC7JH7C5q+nK3VWuxox T372uc1jKzRbUANM+Qd8w2CNt7hJVTHJiGxxzmFBNna48gHoRwiD0+KnTT0fmV5y 5D35cL27Wg== =dm0Z -----END PGP SIGNATURE----- gpgsig -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAmorI6EACgkQmmx57+YA GNk1eg/+ILPgWUY/Ld6G5ZJBF5izO4Hh57fblT0+Fy4SfTdXN203CCSFtCT37CqM +QuvAeVfu1pbiiqrH9CQ7vLBXx/k9QmKCYya2IAAHs8JVKTWrXFsLOt1FwQwr4KP 4vpDsBNjsfSlOE1IoI3wX5EbvzYgoiOCRKn23gBtavHWXWCifX7F6Ifh2yUpXK3j S6k1FEsszZt9TqxvXAi2Qkk/LSfVnxfXB/umngtipRjQiiJI5CqhMI/cdiMoqbGO +OUaWuwbx3z2EzqCwQ167pldn9pkLrB9j8bcXtJSoZwToAhNYJzZcFWpRP7uua49 zGf3gkVfMv28WiMxdXSetSAKFiiGHGNbgG9JeFcpA1da1C5PTMrGdzoc/tXKNV/P KCcbyB5AcPsycyHio3BPE4RX7HEqwOZdoR7Vj6sjgElo7eyoReAXzu1i+WO1s0gr UinzZWg2fk3J+D0sk/ttbubG909b5s8O1tHLyXHkiePpYhL02l2qhFmNPaLCzkyU MIok+Dq+zNoGE2KPfwcmnBHZt5nzGQAi/P/aPsBKsnsu+1VG876m6BKg/SocrKJU AKx5r0nUdTDKTpxAuynZdk3uYNYK2tYv0TfO6WCO7q30itGkDGicfxiIcMLcpcHz 5IpwvbpY/UP7+1N1iYcKyh0/RezSPo2ZHFjIPCdZbyAyvdLk36w= =ya9P -----END PGP SIGNATURE----- Merge tag 'sunxi-dt-for-7.2-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into soc/dt Allwinner device tree changes for 7.2 - Take 2 Some changes for old chips and some for recent ones. - A83T gained the MIPI CSI-2 receiver - overlays enabled for Pine64 boards - D1s / T113 and H616 gained the high speed timer - T113s watchdog enabled (for reboot) - H616 gained proper SRAM regions - A523 family gained EL2 virtual timer interrupt and GPADC - A523 pinctrl IRQ fix * tag 'sunxi-dt-for-7.2-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: arm64: dts: allwinner: a523: Add missing GPIO interrupt arm64: dts: allwinner: a523: add gpadc node arm64: dts: allwinner: Add EL2 virtual timer interrupt ARM: dts: sun8i: a83t: Add MIPI CSI-2 controller node dt-bindings: media: sun6i-a31-isp: Add optional interconnect properties dt-bindings: media: sun6i-a31-csi: Add optional interconnect properties arm64: dts: allwinner: sun50i-a64: Enable DT overlays arm: dts: allwinner: t113s: enable watchdog for reboot arm64: dts: allwinner: h616: add hstimer node riscv: dts: allwinner: d1s-t113: add hstimer node arm64: dts: allwinner: sun50i-h616: Add SRAM nodes Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
||
|
Linus Torvalds
|
767622308a |
RISC-V updates for v7.1-rc8
- Fix the implementation of the CFI branch landing pad control prctl()s to return -EINVAL if unknown control bits are set, rather than silently ignoring the request; and add a kselftest for this case - Fix unaligned access performance testing to happen earlier in boot, which fixes a performance regression in the lib/checksum code - Fix a binfmt_elf warning when dumping core (due to missing .core_note_name for CFI registers) -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEElRDoIDdEz9/svf2Kx4+xDQu9KksFAmopaGkACgkQx4+xDQu9 KkvBng/+LAQwSRM5fRJVEzHq5PvVvElGCcdWoBnRGF/OX3WG9h+HErMCyfz3uKnr sqjlfs8GZTg1ABTIqBOu2eUj0SzsJfXE8Ehc2l5D34VSG2BsPh7CJABxqZtLdWoT K/DlmlDwWZ3Pu4HQKtQeFCRAT1MFhXfgvaomrR4qCmigQyJYeLatuTuvGd0RXL6U CHx9yPJY9++rC1mV+h5IKw/Ml8gQJCdCvYF9zZsRlFxhQi/QL0jz588yCK10qXx4 hFntomFtscnPW3DU57+OpHyKuHG0IyqOmgr093JCFKMr4jDbfxFI1UjEbcfk28Uy YN+RHXXrzvfVlLhZCYk4nlu+YwMBkgZEvwxGFrFIunkVLHI01GB02HNcRGukLRnA zjevjQFK78cvg7LbY3tlqdmOs/RqjpHJd5LwU9FUgj+jXbt5wBviarV6VPAAL2za 8ZgNjxBCO3aT1ec5sIjhu7HrZxgcbv6x7GipmlrKmmSBvE2+Gzcz4jCIIWT9GjOt lGNX/B25ew5sK8zoDsGoTW4dCCHOMHD/vGsXww3IxSrWOQX4Ew9Ffcxks82AYqId C9DttPDZLcN82VeVymgrVZl9JJBkudeLO6fDl1mRgCY11qp1tJG3GaosfA601qiE PYlfsqMlNZKPUO7JXR3l70LbRocNKqJl3Yo7u+KstHV26E99twk= =yfQt -----END PGP SIGNATURE----- Merge tag 'riscv-for-linux-7.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Paul Walmsley: - Fix the implementation of the CFI branch landing pad control prctl()s to return -EINVAL if unknown control bits are set, rather than silently ignoring the request; and add a kselftest for this case - Fix unaligned access performance testing to happen earlier in boot, which fixes a performance regression in the lib/checksum code - Fix a binfmt_elf warning when dumping core (due to missing .core_note_name for CFI registers) * tag 'riscv-for-linux-7.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: cfi: reject unknown flags in PR_SET_CFI riscv: Fix fast_unaligned_access_speed_key not getting initialized riscv/ptrace: Use USER_REGSET_NOTE_TYPE for REGSET_CFI |
||
|
Arnd Bergmann
|
1012d4d9f7 |
Microchip RISC-V devicetrees for v7.2
This time around, there's nothing other than patches for Microchip boards. All of this is low priority fixes and cleanup, centred on the pic64gx and beaglev-fire boards. There is no new support added. Signed-off-by: Conor Dooley <conor.dooley@microchip.com> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCaiaVfAAKCRB4tDGHoIJi 0ukrAP9WOUMFZsIkVJvjMgrPoC+0km/Uy8WDj4efBgxW8Z7xvwD8D2uG9Revojwm 8PRjydw22KWI2DIxzxP3Gei7HMZLwQE= =1br7 -----END PGP SIGNATURE----- gpgsig -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAmooO9MACgkQmmx57+YA GNluoA/+IAZnT8Aa1dRag6H67qgERTFzyeU3uE48Vv/MHrhAuuRc8G22z4/i33Er 0z5mrb7PwGmC3OfrAkr3ATQDY9reYjADRe5jq3xA9Ip3e43uphBDcHN3qpDREDdX DaYOaWSwOkK80lWQ1nRE8OlztEIqqb2TamPZ7HYpuyMho8OHm0QZHQOMsSMzxlhX vYay2jSB/KwjcJWJdWANeyRarxnNY/g/V5lQT5YM4nt9vJ6W6/bRrR8O0wsHiGn8 daJ1ZljOKxEfhfQ12gbuzBKesz0aZ06aWPtuvsN/6HlkFWUwfxcsrJvbRR5zLKAZ QeKBnyWeN3xZe9ZiZN4rMgU6IxCChQbYsWB3yLei/NUTcB4YsM2NZXt7c3JBPIIj fqt7Pj9BCrSnvSFMS2bA43M7sNTfIA1DyNEgTo+Gp3D/4HFTz69vOBwSERS5PlfK JBXiw4/uVskQxbNwc9IhpEGo0Aa1Y+Vf9I+XbqFqvbGqNpaaw9LeFCCLjqHHRnjW l8YFxj7FO4u7BDt8LZ2NIUrQu0NTJHYSWNZe+ps4TpwkRrFMD/xODRP0QkFxd3Gy wLDAHN6MPBRLo3/zusoXHRe0xZK4f4C8SFXjVBB8K5pCYgZLgbxg/IprDgTLvU10 vLVjiDlkBlLa/AnT1QAGoAsmuE2kWy/NR6GPx4SVn1yc/vdUxxs= =syLy -----END PGP SIGNATURE----- Merge tag 'riscv-dt-for-v7.2' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux into soc/dt Microchip RISC-V devicetrees for v7.2 This time around, there's nothing other than patches for Microchip boards. All of this is low priority fixes and cleanup, centred on the pic64gx and beaglev-fire boards. There is no new support added. Signed-off-by: Conor Dooley <conor.dooley@microchip.com> * tag 'riscv-dt-for-v7.2' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux: riscv: dts: microchip: remove redudant enabling of syscontroller riscv: dts: microchip: fix pic64gx gpio interrupt-cells riscv: dts: microchip: add gpio line names on beaglev-fire riscv: dts: microchip: add adc interrupt on beaglev-fire riscv: dts: microchip: clean up beaglev-fire regulator node names riscv: dts: microchip: remove gpio hogs from beaglev-fire riscv: dts: microchip: gpio controllers on mpfs need 2 interrupt cells riscv: dts: microchip: sort pic64gx i2c nodes alphanumerically riscv: dts: microchip: update pic64gx gpio interrupts to better match the SoC riscv: dts: microchip: add tsu clock to macb on pic64gx Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
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Krzysztof Kozlowski
|
9cf333de20 |
RISC-V Devicetrees for v7.2
Sophgo: For CV18xx serials: - Add bindings for Milk-V "Duo S" board. For SG2042: - The CPU unit address incorrectly used decimal numbers, especially for those nodes which value >= 10. Now corrected to use hexadecimal. - The MSI controller actually only supports 16 interrupts; corrected to match the actual situation. - PCIe RCs are cache-coherent with the CPU. Marked it out for RC nodes. For SG2044: - The same as SG2042, use hex for CPU unit address. In additional, update Chen Wang's email address for Sopgho SoC maintainer. Signed-off-by: Chen Wang <unicorn_wang@outlook.com> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTYPcWJ6By3aFu8IuKHG95Quc97dgUCah/FnAAKCRCHG95Quc97 dhWzAQDU0rJDliEvffHvt4MBpMe5MuK5vgwxEun3YPCjCTzkpQEA6HT6IgHjlibB SLUn4X8cbJpupgI3czvkxogPNWeZYgE= =kAeE -----END PGP SIGNATURE----- Merge tag 'riscv-sophgo-dt-for-v7.2' of https://github.com/sophgo/linux into soc/dt RISC-V Devicetrees for v7.2 Sophgo: For CV18xx serials: - Add bindings for Milk-V "Duo S" board. For SG2042: - The CPU unit address incorrectly used decimal numbers, especially for those nodes which value >= 10. Now corrected to use hexadecimal. - The MSI controller actually only supports 16 interrupts; corrected to match the actual situation. - PCIe RCs are cache-coherent with the CPU. Marked it out for RC nodes. For SG2044: - The same as SG2042, use hex for CPU unit address. In additional, update Chen Wang's email address for Sopgho SoC maintainer. Signed-off-by: Chen Wang <unicorn_wang@outlook.com> * tag 'riscv-sophgo-dt-for-v7.2' of https://github.com/sophgo/linux: riscv: dts: sophgo: reduce SG2042 MSI count to 16 riscv: dts: sophgo: sg2042: use hex for CPU unit address riscv: dts: sophgo: sg2044: use hex for CPU unit address riscv: dts: sophgo: Add dma-coherent to SG2042 PCIe controllers dt-bindings: soc: sophgo: add sg2000 plic and clint documentation dt-bindings: soc: sophgo: add Milk-V Duo S board compatibles MAINTAINERS: update Chen Wang's email address Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> |
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|
Krzysztof Kozlowski
|
77510b39ee |
RISC-V SpacemiT DT changes for 7.2
For K3 SoC - Add Ziccrse extension - Add PWM support - Add PDMA support - Add USB2.0 support - Add CoM260-IFX board - Add DeepComputing FML13V05 board - Fix I/O power of pinctrl For K1 SoC - Add Micro SD card support - Add baudrate to console - Add SPI support - Enable thermal sensor - Fix 32K clock For boards of K1 - Milk-V Jupiter - Enable eMMC - MusePi-Pro - Enable EEPROM/PCIe/QSPI/USB - OrangePi R2S - Enable PMIC/USB3 - OrangePi RV2 - Enable eMMC/I2C/PCIe/PMIC/QSPI/USB -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQKvBAABCgCZFiEEtbq4ycMbcRVnAiPcMarqR1lNu+0FAmoefQAbFIAAAAAABAAO bWFudTIsMi41KzEuMTIsMiwyXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25z Lm9wZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRCNUJBQjhDOUMzMUI3MTE1NjcwMjIz REMzMUFBRUE0NzU5NERCQkVEAAoJEDGq6kdZTbvt6ckP/jCv7or+dzs2Pjcaa9/Z HaMnbriUS3u83KFRJ4Gf7O55fUzWq7Tl+fejoWrh5UF5lkSe9f5TT6sv/l9XOetE CB6slypX4Qzv1FNP9owMo646GeyUrOKQz8dxSsUtcZf5UpFWHfgvgz2NW5gr+s6m 6jf+TGOsK1ge9haIKmxp3Zzhlh3j/p0pvc8WprNg9EV+wTFmn7QHRNn6Y3tkpHLM x4dms3oOLOHp8JXQ29cJZp3Jqkgpjx8mxUnH2zkGdW4R9xvDgN9qG48qPmKgT1eE JnilE3wGMjVHW5JtFDFT2PWzb6A4ZijKsHVGZ7T+YoOrsE8imY7EQxQkZwl7e8bc cnKPbx6/RN1Kj3ifCEDXbulQtorxMsE4wMkUeJ1BmMvlHiZ9NUMHLRjMnnVlWlpN ltCx/qdxwEmFLcajMf8vBxPDlETHjE+w8U66vJwb4TKXnOLfs8b7bZA5HOQMc7ZB EWbkxYLBtEj1R4Q32kFvlQGjPVt7vdTtBeG9ZAJWq9FqU1vVH97+lERw7/v16fHp SZqP7z+aApWgxa3Xxr+eUHjgTRyJEeOW/RGrIXOPU1188SWqxpejf68skASpMGoa kgjqnS7fN3TXHtkGFGYOGiqTKOuuCnmr1QPmOOd9ALZnFUgr37CCY5BQMH0m5ci7 5odjSub1Wu0VTW4vwnohlXQU =lNAs -----END PGP SIGNATURE----- Merge tag 'spacemit-dt-for-7.2-1' of https://github.com/spacemit-com/linux into soc/dt RISC-V SpacemiT DT changes for 7.2 For K3 SoC - Add Ziccrse extension - Add PWM support - Add PDMA support - Add USB2.0 support - Add CoM260-IFX board - Add DeepComputing FML13V05 board - Fix I/O power of pinctrl For K1 SoC - Add Micro SD card support - Add baudrate to console - Add SPI support - Enable thermal sensor - Fix 32K clock For boards of K1 - Milk-V Jupiter - Enable eMMC - MusePi-Pro - Enable EEPROM/PCIe/QSPI/USB - OrangePi R2S - Enable PMIC/USB3 - OrangePi RV2 - Enable eMMC/I2C/PCIe/PMIC/QSPI/USB * tag 'spacemit-dt-for-7.2-1' of https://github.com/spacemit-com/linux: (35 commits) riscv: dts: spacemit: enable PMIC on OrangePi R2S dts: riscv: spacemit: k3: Fix I/O power settings riscv: dts: spacemit: k3: Add Ziccrse extension for X100 cores riscv: dts: spacemit: k3: Initial support for CoM260-IFX board dt-bindings: riscv: spacemit: Add K3 CoM260-IFX board riscv: dts: spacemit: k1-musepi-pro: add SD card support with UHS modes riscv: dts: spacemit: k3: Add pwm support riscv: dts: spacemit: fix uboot partition offset on Milk-V Jupiter riscv: dts: spacemit: enable SD card support on Milk-V Jupiter riscv: dts: spacemit: enable eMMC on Milk-V Jupiter riscv: dts: spacemit: sort aliases on Milk-V Jupiter riscv: dts: spacemit: set console baud rate on Milk-V Jupiter riscv: dts: spacemit: enable USB3 on OrangePi R2S riscv: dts: spacemit: Add thermal sensor for K1 SoC riscv: dts: spacemit: Add PDMA controller node for K3 SoC riscv: dts: spacemit: enable QSPI for OrangePi RV2 riscv: dts: spacemit: k1-musepi-pro: set default console baud rate riscv: dts: spacemit: k1-musepi-pro: enable PCIe ports riscv: dts: spacemit: k1-musepi-pro: enable USB 3 ports riscv: dts: spacemit: k1-musepi-pro: enable QSPI and add SPI NOR ... Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> |
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Krzysztof Kozlowski
|
d7f82a3fd1 |
T-HEAD Devicetrees for 7.2
Enable wifi on two TH1520 boards: BeagleV Ahead and Lichee Pi 4a. The BeagleV Ahead board uses an AP6203BM WiFi module connected to SDIO1. The Lichee Pi 4A has an RTL8723DS WiFi module also connected to SDIO1. The module reset line is driven through a PCA9557 GPIO expander on the I2C1 bus. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQSy8G7QpEpV9aCf6Lbb7CzD2SixDAUCah4clQAKCRDb7CzD2Six DF2AAQDknKUINZIFy4xuYA9J45iwjHOXxwo0YAWKKX5QFu5avgEAyQN+P31Vgjyi dzh1ilkH+nSO/blbeh8p8kaR3T8+AQ4= =ovaG -----END PGP SIGNATURE----- Merge tag 'thead-dt-for-v7.2' of https://git.kernel.org/pub/scm/linux/kernel/git/fustini/linux into soc/dt T-HEAD Devicetrees for 7.2 Enable wifi on two TH1520 boards: BeagleV Ahead and Lichee Pi 4a. The BeagleV Ahead board uses an AP6203BM WiFi module connected to SDIO1. The Lichee Pi 4A has an RTL8723DS WiFi module also connected to SDIO1. The module reset line is driven through a PCA9557 GPIO expander on the I2C1 bus. * tag 'thead-dt-for-v7.2' of https://git.kernel.org/pub/scm/linux/kernel/git/fustini/linux: riscv: dts: thead: Enable wifi on the BeagleV-Ahead riscv: dts: thead: Enable WiFi on Lichee Pi 4A riscv: dts: thead: Add TH1520 I2C1 controller Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> |
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|
Muchun Song
|
abff0ecf76 |
riscv/mm: drop vmemmap_pmd helpers and use generic code
The generic implementations now suffice; remove the riscv copies. Link: https://lore.kernel.org/20260601084845.3792171-4-songmuchun@bytedance.com Signed-off-by: Muchun Song <songmuchun@bytedance.com> Reviewed-by: David Hildenbrand (Arm) <david@kernel.org> Reviewed-by: Oscar Salvador (SUSE) <osalvador@kernel.org> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andreas Larsson <andreas@gaisler.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: David S. Miller <davem@davemloft.net> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Liam R. Howlett <liam@infradead.org> Cc: Lorenzo Stoakes <ljs@kernel.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@kernel.org> Cc: WANG Xuerui <kernel@xen0n.name> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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|
Nam Cao
|
319fafd9a3 |
riscv: traps_misaligned: Avoid redundant unaligned access speed probe
When a CPU is taken offline and then is brought back online, unaligned
access speed probe always runs even though the unaligned access speed is
already known, wasting CPU cycles.
This is because when a CPU becomes online, the following happen:
1. check_unaligned_access_emulated() is called, which clears
misaligned_access_speed if there is no emulation.
2. check_unaligned_access() is called because misaligned_access_speed is
cleared, wasting CPU cycles determining something already previous
known.
Avoid the redundant access speed probe by stop clearing
misaligned_access_speed in (1). If access speed is already known, just
reuse it.
On my Visionfive 2, this reduces CPU bring-up time from 26ms to 0.8ms.
Signed-off-by: Nam Cao <namcao@linutronix.de>
Link: https://patch.msgid.link/aa5755142537d462a9e3d2074d82ad4eef6774ba.1780002199.git.namcao@linutronix.de
Signed-off-by: Paul Walmsley <pjw@kernel.org>
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Nam Cao
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d585018a92 |
riscv: misaligned: Fix fast_unaligned_access_speed_key init
When booting with unaligned_scalar_speed=fast, fast_unaligned_access_speed_key is initialized incorrectly. The key is currently derived from the fast_misaligned_access cpumask, but that mask is only populated when the unaligned access speed probe runs. Specifying unaligned_scalar_speed=fast skips the probe entirely, leaving the mask uninitialized. The information tracked by fast_misaligned_access is already available in the misaligned_access_speed per-CPU variable. Use that to initialize fast_unaligned_access_speed_key instead and remove the redundant cpumask. Signed-off-by: Nam Cao <namcao@linutronix.de> Link: https://patch.msgid.link/2468816ceb433394099a00d7822f819745276b49.1780002199.git.namcao@linutronix.de Signed-off-by: Paul Walmsley <pjw@kernel.org> |