Remove the fallback through the ioctl callback, no drivers use this now.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Pranjal Shrivastava <praan@google.com>
Reviewed-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/14-v2-2a9e24d62f1b+e10a-vfio_get_region_info_op_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
Change the signature of vfio_cdx_ioctl_get_region_info() and hook it to
the op.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Pranjal Shrivastava <praan@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/11-v2-2a9e24d62f1b+e10a-vfio_get_region_info_op_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
Move it out of vfio_platform_ioctl() and re-indent it. Add it to all
platform drivers.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Pranjal Shrivastava <praan@google.com>
Reviewed-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/9-v2-2a9e24d62f1b+e10a-vfio_get_region_info_op_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
Now that every variant driver provides a get_region_info op remove the
ioctl based dispatch from vfio_pci_core_ioctl().
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Pranjal Shrivastava <praan@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/5-v2-2a9e24d62f1b+e10a-vfio_get_region_info_op_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
Remove virtiovf_vfio_pci_core_ioctl() and change the signature of
virtiovf_pci_ioctl_get_region_info().
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Pranjal Shrivastava <praan@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/3-v2-2a9e24d62f1b+e10a-vfio_get_region_info_op_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
Change the function signature of hisi_acc_vfio_pci_ioctl()
and re-indent it.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Pranjal Shrivastava <praan@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/2-v2-2a9e24d62f1b+e10a-vfio_get_region_info_op_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
Instead of hooking the general ioctl op, have the core code directly
decode VFIO_DEVICE_GET_REGION_INFO and call an op just for it.
This is intended to allow mechanical changes to the drivers to pull their
VFIO_DEVICE_GET_REGION_INFO int oa function. Later patches will improve
the function signature to consolidate more code.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Pranjal Shrivastava <praan@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/1-v2-2a9e24d62f1b+e10a-vfio_get_region_info_op_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
The commit, <86624ba3b522> ("vfio/pci: Do vf_token checks for
VFIO_DEVICE_BIND_IOMMUFD") accidentally ignored including the
.match_token_uuid callback in the hisi_acc_vfio_pci_migrn_ops struct.
Introduce the missed callback here.
Fixes: 86624ba3b5 ("vfio/pci: Do vf_token checks for VFIO_DEVICE_BIND_IOMMUFD")
Cc: stable@vger.kernel.org
Suggested-by: Longfang Liu <liulongfang@huawei.com>
Signed-off-by: Raghavendra Rao Ananta <rananta@google.com>
Reviewed-by: Longfang Liu <liulongfang@huawei.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20251031170603.2260022-3-rananta@google.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
For the cases where user includes a non-zero value in 'token_uuid_ptr'
field of 'struct vfio_device_bind_iommufd', the copy_struct_from_user()
in vfio_df_ioctl_bind_iommufd() fails with -E2BIG. For the 'minsz' passed,
copy_struct_from_user() expects the newly introduced field to be zero-ed,
which would be incorrect in this case.
Fix this by passing the actual size of the kernel struct. If working
with a newer userspace, copy_struct_from_user() would copy the
'token_uuid_ptr' field, and if working with an old userspace, it would
zero out this field, thus still retaining backward compatibility.
Fixes: 86624ba3b5 ("vfio/pci: Do vf_token checks for VFIO_DEVICE_BIND_IOMMUFD")
Cc: stable@vger.kernel.org
Signed-off-by: Raghavendra Rao Ananta <rananta@google.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20251031170603.2260022-2-rananta@google.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
On new platforms greater than QM_HW_V3, the migration region has been
relocated from the VF to the PF. The VF's own configuration space is
restored to the complete 64KB, and there is no need to divide the
size of the BAR configuration space equally. The driver should be
modified accordingly to adapt to the new hardware device.
On the older hardware platform QM_HW_V3, the live migration configuration
region is placed in the latter 32K portion of the VF's BAR2 configuration
space. On the new hardware platform QM_HW_V4, the live migration
configuration region also exists in the same 32K area immediately following
the VF's BAR2, just like on QM_HW_V3.
However, access to this region is now controlled by hardware. Additionally,
a copy of the live migration configuration region is present in the PF's
BAR2 configuration space. On the new hardware platform QM_HW_V4, when an
older version of the driver is loaded, it behaves like QM_HW_V3 and uses
the configuration region in the VF, ensuring that the live migration
function continues to work normally. When the new version of the driver is
loaded, it directly uses the configuration region in the PF. Meanwhile,
hardware configuration disables the live migration configuration region
in the VF's BAR2: reads return all 0xF values, and writes are silently
ignored.
Signed-off-by: Longfang Liu <liulongfang@huawei.com>
Reviewed-by: Shameer Kolothum <shameerkolothum@gmail.com>
Link: https://lore.kernel.org/r/20251030015744.131771-3-liulongfang@huawei.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
On new platforms greater than QM_HW_V3, the configuration region for the
live migration function of the accelerator device is no longer
placed in the VF, but is instead placed in the PF.
Therefore, the configuration region of the live migration function
needs to be opened when the QM driver is loaded. When the QM driver
is uninstalled, the driver needs to clear this configuration.
Signed-off-by: Longfang Liu <liulongfang@huawei.com>
Reviewed-by: Shameer Kolothum <shameerkolothum@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Link: https://lore.kernel.org/r/20251030015744.131771-2-liulongfang@huawei.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
Store the tools/testing/selftests/vfio/lib outputs (e.g. object files)
in $(OUTPUT)/libvfio rather than in $(OUTPUT)/lib. This is in
preparation for building the VFIO selftests library into the KVM
selftests (see Link below).
Specifically this will avoid name conflicts between
tools/testing/selftests/{vfio,kvm/lib and also avoid leaving behind
empty directories under tools/testing/selftests/kvm after a make clean.
Link: https://lore.kernel.org/kvm/20250912222525.2515416-2-dmatlack@google.com/
Signed-off-by: David Matlack <dmatlack@google.com>
Link: https://lore.kernel.org/r/20250922224857.2528737-1-dmatlack@google.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
One new device ID for an Intel SoC.
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Merge tag 'spi-fix-v6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fix from Mark Brown:
"One new device ID for an Intel SoC"
* tag 'spi-fix-v6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: intel: Add support for Oak Stream SPI serial flash
A simple fix for a missed part of an API conversion on the bd718x7 driver.
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Merge tag 'regulator-fix-v6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fix from Mark Brown:
"A simple fix for a missed part of an API conversion in the bd718x7
driver"
* tag 'regulator-fix-v6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: bd718x7: Fix voltages scaled by resistor divider
One documentation fix and a fix for a problem with the slimbus regmap
which was uncovered by some changes in one of the drivers.
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Merge tag 'regmap-fix-v6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fixes from Mark Brown:
"One documentation fix and a fix for a problem with the slimbus regmap
which was uncovered by some changes in one of the drivers"
* tag 'regmap-fix-v6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: irq: Correct documentation of wake_invert flag
regmap: slimbus: fix bus_context pointer in regmap init calls
- Limit AMD microcode Entrysign sha256 signature checking to
known CPU generations.
- Disable AMD RDSEED32 on certain Zen5 CPUs that have a
microcode version before when the microcode-based fix was
issued for the AMD-SB-7055 erratum.
- Fix FPU AMD XFD state synchronization on signal delivery
- Fix (work around) a SSE4a-disassembly related build failure
on X86_NATIVE_CPU=y builds.
- Extend the AMD Zen6 model space with a new range of models
- Fix <asm/intel-family.h> CPU model comments
- Fix the CONFIG_CFI=y and CONFIG_LTO_CLANG_FULL=y build, which
was unhappy due to missing kCFI type annotations of clear_page()
variants.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2025-11-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 fixes from Ingo Molnar:
- Limit AMD microcode Entrysign sha256 signature checking to
known CPU generations
- Disable AMD RDSEED32 on certain Zen5 CPUs that have a
microcode version before when the microcode-based fix was
issued for the AMD-SB-7055 erratum
- Fix FPU AMD XFD state synchronization on signal delivery
- Fix (work around) a SSE4a-disassembly related build failure
on X86_NATIVE_CPU=y builds
- Extend the AMD Zen6 model space with a new range of models
- Fix <asm/intel-family.h> CPU model comments
- Fix the CONFIG_CFI=y and CONFIG_LTO_CLANG_FULL=y build, which
was unhappy due to missing kCFI type annotations of clear_page()
variants
* tag 'x86-urgent-2025-11-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Ensure clear_page() variants always have __kcfi_typeid_ symbols
x86/cpu: Add/fix core comments for {Panther,Nova} Lake
x86/CPU/AMD: Extend Zen6 model range
x86/build: Disable SSE4a
x86/fpu: Ensure XFD state on signal delivery
x86/CPU/AMD: Add RDSEED fix for Zen5
x86/microcode/AMD: Limit Entrysign signature checking to known generations
- Fix an out-of-bounds access on non-hybrid platforms in the
Intel PMU DS code, reported by KASAN.
- Add WildcatLake PMU and uncore support: it's identical to the
PantherLake version.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-urgent-2025-11-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf event fixes from Ingo Molnar:
"Miscellaneous fixes and CPU model updates:
- Fix an out-of-bounds access on non-hybrid platforms in the Intel
PMU DS code, reported by KASAN
- Add WildcatLake PMU and uncore support: it's identical to the
PantherLake version"
* tag 'perf-urgent-2025-11-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/uncore: Add uncore PMU support for Wildcat Lake
perf/x86/intel: Add PMU support for WildcatLake
perf/x86/intel: Fix KASAN global-out-of-bounds warning
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-fixes-6.18-rc4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Carlos Maiolino:
"Just a single bug fix (and documentation for the issue)"
* tag 'xfs-fixes-6.18-rc4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: document another racy GC case in xfs_zoned_map_extent
xfs: prevent gc from picking the same zone twice
- Formally adopt Kconfig in MAINTAINERS
- Fix install-extmod-build for more O= paths
- Align end of .modinfo to fix Authenticode calculation in EDK2
- Restore dynamic check for '-fsanitize=kernel-memory' in
CONFIG_HAVE_KMSAN_COMPILER to ensure backend target has support for
it
- Initialize locale in menuconfig and nconfig to fix UTF-8 terminals
that may not support VT100 ACS by default like PuTTY
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
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Merge tag 'kbuild-fixes-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild fixes from Nathan Chancellor:
- Formally adopt Kconfig in MAINTAINERS
- Fix install-extmod-build for more O= paths
- Align end of .modinfo to fix Authenticode calculation in EDK2
- Restore dynamic check for '-fsanitize=kernel-memory' in
CONFIG_HAVE_KMSAN_COMPILER to ensure backend target has support
for it
- Initialize locale in menuconfig and nconfig to fix UTF-8 terminals
that may not support VT100 ACS by default like PuTTY
* tag 'kbuild-fixes-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
kconfig/nconf: Initialize the default locale at startup
kconfig/mconf: Initialize the default locale at startup
KMSAN: Restore dynamic check for '-fsanitize=kernel-memory'
kbuild: align modinfo section for Secureboot Authenticode EDK2 compat
kbuild: install-extmod-build: Fix when given dir outside the build dir
MAINTAINERS: Update Kconfig section
If an insn->alt points to a STAC/CLAC instruction, skip_alt_group()
assumes it's part of an alternative ("alt group") as opposed to some
other kind of "alt" such as an exception fixup.
While that assumption may hold true in the current code base, Linus has
an out-of-tree patch which breaks that assumption by replacing the
STAC/CLAC alternatives with raw STAC/CLAC instructions.
Make skip_alt_group() more robust by making sure it's actually an alt
group before continuing.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes: 2d12c6fb78 ("objtool: Remove ANNOTATE_IGNORE_ALTERNATIVE from CLAC/STAC")
Closes: https://lore.kernel.org/CAHk-=wi6goUT36sR8GE47_P-aVrd5g38=VTRHpktWARbyE-0ow@mail.gmail.com
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://patch.msgid.link/3d22415f7b8e06a64e0873b21f48389290eeaa49.1761767616.git.jpoimboe@kernel.org
Fix bug where make nconfig doesn't initialize the default locale, which
causes ncurses menu borders to be displayed incorrectly (lqqqqk) in
UTF-8 terminals that don't support VT100 ACS by default, such as PuTTY.
Signed-off-by: Jakub Horký <jakub.git@horky.net>
Link: https://patch.msgid.link/20251014144405.3975275-2-jakub.git@horky.net
[nathan: Alphabetize locale.h include]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Fix bug where make menuconfig doesn't initialize the default locale, which
causes ncurses menu borders to be displayed incorrectly (lqqqqk) in
UTF-8 terminals that don't support VT100 ACS by default, such as PuTTY.
Signed-off-by: Jakub Horký <jakub.git@horky.net>
Link: https://patch.msgid.link/20251014154933.3990990-1-jakub.git@horky.net
[nathan: Alphabetize locale.h include]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
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Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Pull bpf fixes from Alexei Starovoitov:
- Mark migrate_disable/enable() as always_inline to avoid issues with
partial inlining (Yonghong Song)
- Fix powerpc stack register definition in libbpf bpf_tracing.h (Andrii
Nakryiko)
- Reject negative head_room in __bpf_skb_change_head (Daniel Borkmann)
- Conditionally include dynptr copy kfuncs (Malin Jonsson)
- Sync pending IRQ work before freeing BPF ring buffer (Noorain Eqbal)
- Do not audit capability check in x86 do_jit() (Ondrej Mosnacek)
- Fix arm64 JIT of BPF_ST insn when it writes into arena memory
(Puranjay Mohan)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf/arm64: Fix BPF_ST into arena memory
bpf: Make migrate_disable always inline to avoid partial inlining
bpf: Reject negative head_room in __bpf_skb_change_head
bpf: Conditionally include dynptr copy kfuncs
libbpf: Fix powerpc's stack register definition in bpf_tracing.h
bpf: Do not audit capability check in do_jit()
bpf: Sync pending IRQ work before freeing ring buffer
When building with CONFIG_CFI=y and CONFIG_LTO_CLANG_FULL=y, there is a series
of errors from the various versions of clear_page() not having __kcfi_typeid_
symbols.
$ cat kernel/configs/repro.config
CONFIG_CFI=y
# CONFIG_LTO_NONE is not set
CONFIG_LTO_CLANG_FULL=y
$ make -skj"$(nproc)" ARCH=x86_64 LLVM=1 clean defconfig repro.config bzImage
ld.lld: error: undefined symbol: __kcfi_typeid_clear_page_rep
>>> referenced by ld-temp.o
>>> vmlinux.o:(__cfi_clear_page_rep)
ld.lld: error: undefined symbol: __kcfi_typeid_clear_page_orig
>>> referenced by ld-temp.o
>>> vmlinux.o:(__cfi_clear_page_orig)
ld.lld: error: undefined symbol: __kcfi_typeid_clear_page_erms
>>> referenced by ld-temp.o
>>> vmlinux.o:(__cfi_clear_page_erms)
With full LTO, it is possible for LLVM to realize that these functions never
have their address taken (as they are only used within an alternative, which
will make them a direct call) across the whole kernel and either drop or skip
generating their kCFI type identification symbols.
clear_page_{rep,orig,erms}() are defined in clear_page_64.S with
SYM_TYPED_FUNC_START as a result of
2981557cb0 ("x86,kcfi: Fix EXPORT_SYMBOL vs kCFI"),
as exported functions are free to be called indirectly thus need kCFI type
identifiers.
Use KCFI_REFERENCE with these clear_page() functions to force LLVM to see
these functions as address-taken and generate then keep the kCFI type
identifiers.
Fixes: 2981557cb0 ("x86,kcfi: Fix EXPORT_SYMBOL vs kCFI")
Closes: https://github.com/ClangBuiltLinux/linux/issues/2128
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://patch.msgid.link/20251013-x86-fix-clear_page-cfi-full-lto-errors-v1-1-d69534c0be61@kernel.org
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Merge tag 'pci-v6.18-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci fixes from Bjorn Helgaas:
- Restore custom qcom ASPM enablement code so L1 PM Substates are
enabled as they were in v6.17 even though the PCI core now enables
just L0s and L1 by default (Bjorn Helgaas)
- Size prefetchable bridge windows only when they actually exist, to
avoid a WARN_ON() regression (Ilpo Järvinen)
* tag 'pci-v6.18-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI: Do not size non-existing prefetchable window
Revert "PCI: qcom: Remove custom ASPM enablement code"
- Fix overflows in vfio type1 backend for mappings at the end of the
64-bit address space, resulting in leaked pinned memory. New
selftest support included to avoid such issues in the future.
(Alex Mastro)
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Merge tag 'vfio-v6.18-rc4' of https://github.com/awilliam/linux-vfio
Pull VFIO fixes from Alex Williamson:
- Fix overflows in vfio type1 backend for mappings at the end of the
64-bit address space, resulting in leaked pinned memory.
New selftest support included to avoid such issues in the future
(Alex Mastro)
* tag 'vfio-v6.18-rc4' of https://github.com/awilliam/linux-vfio:
vfio: selftests: add end of address space DMA map/unmap tests
vfio: selftests: update DMA map/unmap helpers to support more test kinds
vfio/type1: handle DMA map/unmap up to the addressable limit
vfio/type1: move iova increment to unmap_unpin_*() caller
vfio/type1: sanitize for overflow using check_*_overflow()
pbus_size_mem() should only be called for bridge windows that exist but
__pci_bus_size_bridges() may point 'pref' to a resource that does not exist
(has zero flags) in case of non-root buses.
When prefetchable bridge window does not exist, the same non-prefetchable
bridge window is sized more than once which may result in duplicating
entries into the realloc_head list. Duplicated entries are shown in this
log and trigger a WARN_ON() because realloc_head had residual entries after
the resource assignment algorithm:
pci 0000:00:03.0: [11ab:6820] type 01 class 0x060400 PCIe Root Port
pci 0000:00:03.0: PCI bridge to [bus 00]
pci 0000:00:03.0: bridge window [io 0x0000-0x0fff]
pci 0000:00:03.0: bridge window [mem 0x00000000-0x000fffff]
pci 0000:00:03.0: bridge window [mem 0x00200000-0x003fffff] to [bus 02] add_size 200000 add_align 200000
pci 0000:00:03.0: bridge window [mem 0x00200000-0x003fffff] to [bus 02] add_size 200000 add_align 200000
pci 0000:00:03.0: bridge window [mem 0xe0000000-0xe03fffff]: assigned
pci 0000:00:03.0: PCI bridge to [bus 02]
pci 0000:00:03.0: bridge window [mem 0xe0000000-0xe03fffff]
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at drivers/pci/setup-bus.c:2373 pci_assign_unassigned_root_bus_resources+0x1bc/0x234
Check resource flags of 'pref' and only size the prefetchable window if the
resource has the IORESOURCE_PREFETCH flag.
Fixes: ae88d0b9c5 ("PCI: Use pbus_select_window_for_type() during mem window sizing")
Reported-by: Klaus Kudielka <klaus.kudielka@gmail.com>
Closes: https://lore.kernel.org/r/51e8cf1c62b8318882257d6b5a9de7fdaaecc343.camel@gmail.com/
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Klaus Kudielka <klaus.kudielka@gmail.com>
Link: https://patch.msgid.link/20251027132423.8841-1-ilpo.jarvinen@linux.intel.com
This reverts commit a729c16646.
Prior to a729c16646 ("PCI: qcom: Remove custom ASPM enablement code"),
the qcom controller driver enabled ASPM, including L0s, L1, and L1 PM
Substates, for all devices powered on at the time the controller driver
enumerates them.
ASPM was *not* enabled for devices powered on later by pwrctrl (unless the
kernel was built with PCIEASPM_POWERSAVE or PCIEASPM_POWER_SUPERSAVE, or
the user enabled ASPM via module parameter or sysfs).
After f3ac2ff148 ("PCI/ASPM: Enable all ClockPM and ASPM states for
devicetree platforms"), the PCI core enabled all ASPM states for all
devices whether powered on initially or by pwrctrl, so a729c16646 was
unnecessary and reverted.
But f3ac2ff148 was too aggressive and broke platforms that didn't support
CLKREQ# or required device-specific configuration for L1 Substates, so
df5192d9bb ("PCI/ASPM: Enable only L0s and L1 for devicetree platforms")
enabled only L0s and L1.
On Qualcomm platforms, this left L1 Substates disabled, which was a
regression. Revert a729c16646 so L1 Substates will be enabled on devices
that are initially powered on. Devices powered on by pwrctrl will be
addressed later.
Fixes: df5192d9bb ("PCI/ASPM: Enable only L0s and L1 for devicetree platforms")
Reported-by: Johan Hovold <johan@kernel.org>
Closes: https://lore.kernel.org/lkml/aPuXZlaawFmmsLmX@hovoldconsulting.com/
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20251024210514.1365996-1-helgaas@kernel.org
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Merge tag 'block-6.18-20251031' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- Fix blk-crypto reporting EIO when EINVAL is the correct error code
- Two bug fixes for the block zone support
- NVME pull request via Keith:
- Target side authentication fixup
- Peer-to-peer metadata fixup
- null_blk DMA alignment fix
* tag 'block-6.18-20251031' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
null_blk: set dma alignment to logical block size
blk-crypto: use BLK_STS_INVAL for alignment errors
block: make REQ_OP_ZONE_OPEN a write operation
block: fix op_is_zone_mgmt() to handle REQ_OP_ZONE_RESET_ALL
nvme-pci: use blk_map_iter for p2p metadata
nvmet-auth: update sc_c in host response
- Use correct locking in zPCI event code to avoid deadlock
- Get rid of irqs_registered flag in zpci_dev structure and restore IRQ
unconditionally for zPCI devices. This fixes sit uations where the flag
was not correctly updated
- Fix potential memory leak kernel page table dumper code
- Disable (revert) ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP for s390 again. The
optimized hugetlb vmemmap code modifies kernel page tables in a way which
does not work on s390 and leads to reproducible kernel crashes due to
stale TLB entries. This needs to be addressed with some larger changes.
For now simply disable the feature
- Update defconfigs
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Merge tag 's390-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Heiko Carstens:
- Use correct locking in zPCI event code to avoid deadlock
- Get rid of irqs_registered flag in zpci_dev structure and restore IRQ
unconditionally for zPCI devices. This fixes sit uations where the
flag was not correctly updated
- Fix potential memory leak kernel page table dumper code
- Disable (revert) ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP for s390 again.
The optimized hugetlb vmemmap code modifies kernel page tables in a
way which does not work on s390 and leads to reproducible kernel
crashes due to stale TLB entries. This needs to be addressed with
some larger changes. For now simply disable the feature
- Update defconfigs
* tag 's390-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: Disable ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
s390/mm: Fix memory leak in add_marker() when kvrealloc() fails
s390/pci: Restore IRQ unconditionally for the zPCI device
s390: Update defconfigs
s390/pci: Avoid deadlock between PCI error recovery and mlx5 crdump
The arm64 JIT supports BPF_ST with BPF_PROBE_MEM32 (arena) by using the
tmp2 register to hold the dst + arena_vm_base value and using tmp2 as the
new dst register. But this is broken because in case is_lsi_offset()
returns false the tmp2 will be clobbered by emit_a64_mov_i(1, tmp2, off,
ctx); and hence the emitted store instruction will be of the form:
strb w10, [x11, x11]
Fix this by using the third temporary register to hold the dst +
arena_vm_base.
Fixes: 339af577ec ("bpf: Add arm64 JIT support for PROBE_MEM32 pseudo instructions.")
Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Link: https://lore.kernel.org/r/20251030121715.55214-1-puranjay@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
The build fails with llvm 21/22:
$ make LLVM=1 -j
...
LD vmlinux.o
GEN .vmlinux.objs
...
BTF .tmp_vmlinux1.btf.o
...
AS .tmp_vmlinux2.kallsyms.o
LD vmlinux.unstripped
BTFIDS vmlinux.unstripped
WARN: resolve_btfids: unresolved symbol migrate_enable
WARN: resolve_btfids: unresolved symbol migrate_disable
make[2]: *** [vmlinux.unstripped] Error 255
make[2]: *** Deleting file 'vmlinux.unstripped'
make[1]: *** [Makefile:1242: vmlinux] Error 2
make: *** [Makefile:248: __sub-make] Error 2
Two functions with identical names but different addresses are
considered ambiguous and removed by "pahole" from vmlinux BTF.
Later resolve_btfids warns since it cannot find them.
Commit 378b770819 ("sched: Make migrate_{en,dis}able() inline") made
them inlineable in most places, but in vmlinux built with llvm 21 and 22
there are four symbols for migrate_{enable,disable}:
three static functions and one global function.
Fix the issue by marking migrate_{enable,disable} as always inline.
The alternative is to mark them as notrace/nokprobe which is more
drastic. Only bpf programs are prevented from attaching to these
functions. The rest of the tracing shouldn't be affected.
[note: Peter ok-ed the patch, Alexei rewrote commit log]
Fixes: 378b770819 ("sched: Make migrate_{en,dis}able() inline")
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Acked-by: Menglong Dong <menglong.dong@linux.dev>
Link: https://lore.kernel.org/r/20251029183646.3811774-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
- Fix xe_validation_guard() not guarding (Thomas Hellström)
- Do not wake device during a GT reset (Matthew Brost)
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Merge tag 'drm-xe-fixes-2025-10-30' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
Driver Changes:
- Fix xe_validation_guard() not guarding (Thomas Hellström)
- Do not wake device during a GT reset (Matthew Brost)
Signed-off-by: Simona Vetter <simona.vetter@ffwll.ch>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patch.msgid.link/o2b3lucyitafbbcd5bewpfqnslavtnnpc6ck4qatnou2wwukix@rz6seyfw75uy
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Merge tag '6.18-rc3-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- fix potential UAF in statfs
- DFS fix for expired referrals
- fix minor modinfo typo
- small improvement to reconnect for smbdirect
* tag '6.18-rc3-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb: client: call smbd_destroy() in the same splace as kernel_sock_shutdown()/sock_release()
smb: client: handle lack of IPC in dfs_cache_refresh()
smb: client: fix potential cfid UAF in smb2_query_info_compound
cifs: fix typo in enable_gcm_256 module parameter
