mirror of
https://github.com/torvalds/linux
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3953 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Amit Daniel Kachhap
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4f2c9bf16a |
arm64: Add compat hwcap SSBS
This hwcap was added for 32-bit native arm kernel by commit
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Amit Daniel Kachhap
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2d602aa99a |
arm64: Add compat hwcap SB
This hwcap was added for 32-bit native arm kernel by commit
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Amit Daniel Kachhap
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0864d1e429 |
arm64: Add compat hwcap I8MM
This hwcap was added earlier for 32-bit native arm kernel by commit
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Amit Daniel Kachhap
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f64234fa45 |
arm64: Add compat hwcap ASIMDBF16
This hwcap was added earlier for 32-bit native arm kernel by commit
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Amit Daniel Kachhap
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4a87be25b0 |
arm64: Add compat hwcap ASIMDFHM
This hwcap was added earlier for 32-bit native arm kernel by commit
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Amit Daniel Kachhap
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27addd402a |
arm64: Add compat hwcap ASIMDDP
This hwcap was added earlier for 32-bit native arm kernel by commit
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Amit Daniel Kachhap
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846b73a4a3 |
arm64: Add compat hwcap FPHP and ASIMDHP
These hwcaps were added earlier for 32-bit native arm kernel by commit
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Linus Torvalds
|
77856d911a |
arm64 fixes for -rc1
- Fix Kconfig dependencies to re-allow the enabling of function graph tracer and shadow call stacks at the same time. - Revert the workaround for CPU erratum #2645198 since the CONFIG_ guards were incorrect and the code has therefore not seen any real exposure in -next. -----BEGIN PGP SIGNATURE----- iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAmOcVWkQHHdpbGxAa2Vy bmVsLm9yZwAKCRC3rHDchMFjNF/7B/wIGicobLxXMMkuao+ipm5V/eLnVRuVt6WD T//5ZG+3Td3xON+mdt/byIm/Npl1I2l+NDjK9jIFcS5A/Q7DmwbcxJV+6BhRdb7o XQxkHsKR2DTbmbeqd0+AkZGJc4jk5D+vuyLeo8jcc6bSpQhepCOV5R5JVOadg9mg WxuITwsodI9GfQGmupggF6C31yMCYibmlD9WWNW8tNx8TBojU97pJbQaf1h3bC9i JE9CxBVYmt3Qg5BAB46EdH60lxELyHpEjJNvgvZZpFz4a/bBB47mG7Cy+ECldc5p LukJnAImydedwgQqgBD0e0HyXoIQ8r8NZ+yNgig2asQxA5DYsI1L =IZRW -----END PGP SIGNATURE----- Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: - Fix Kconfig dependencies to re-allow the enabling of function graph tracer and shadow call stacks at the same time. - Revert the workaround for CPU erratum #2645198 since the CONFIG_ guards were incorrect and the code has therefore not seen any real exposure in -next. * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: Revert "arm64: errata: Workaround possible Cortex-A715 [ESR|FAR]_ELx corruption" ftrace: Allow WITH_ARGS flavour of graph tracer with shadow call stack |
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Linus Torvalds
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8fa590bf34 |
ARM64:
* Enable the per-vcpu dirty-ring tracking mechanism, together with an option to keep the good old dirty log around for pages that are dirtied by something other than a vcpu. * Switch to the relaxed parallel fault handling, using RCU to delay page table reclaim and giving better performance under load. * Relax the MTE ABI, allowing a VMM to use the MAP_SHARED mapping option, which multi-process VMMs such as crosvm rely on (see merge commit |
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Will Deacon
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c0cd1d5417 |
Revert "arm64: errata: Workaround possible Cortex-A715 [ESR|FAR]_ELx corruption"
This reverts commit
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Linus Torvalds
|
48ea09cdda |
hardening updates for v6.2-rc1
- Convert flexible array members, fix -Wstringop-overflow warnings,
and fix KCFI function type mismatches that went ignored by
maintainers (Gustavo A. R. Silva, Nathan Chancellor, Kees Cook).
- Remove the remaining side-effect users of ksize() by converting
dma-buf, btrfs, and coredump to using kmalloc_size_roundup(),
add more __alloc_size attributes, and introduce full testing
of all allocator functions. Finally remove the ksize() side-effect
so that each allocation-aware checker can finally behave without
exceptions.
- Introduce oops_limit (default 10,000) and warn_limit (default off)
to provide greater granularity of control for panic_on_oops and
panic_on_warn (Jann Horn, Kees Cook).
- Introduce overflows_type() and castable_to_type() helpers for
cleaner overflow checking.
- Improve code generation for strscpy() and update str*() kern-doc.
- Convert strscpy and sigphash tests to KUnit, and expand memcpy
tests.
- Always use a non-NULL argument for prepare_kernel_cred().
- Disable structleak plugin in FORTIFY KUnit test (Anders Roxell).
- Adjust orphan linker section checking to respect CONFIG_WERROR
(Xin Li).
- Make sure siginfo is cleared for forced SIGKILL (haifeng.xu).
- Fix um vs FORTIFY warnings for always-NULL arguments.
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Merge tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull kernel hardening updates from Kees Cook:
- Convert flexible array members, fix -Wstringop-overflow warnings, and
fix KCFI function type mismatches that went ignored by maintainers
(Gustavo A. R. Silva, Nathan Chancellor, Kees Cook)
- Remove the remaining side-effect users of ksize() by converting
dma-buf, btrfs, and coredump to using kmalloc_size_roundup(), add
more __alloc_size attributes, and introduce full testing of all
allocator functions. Finally remove the ksize() side-effect so that
each allocation-aware checker can finally behave without exceptions
- Introduce oops_limit (default 10,000) and warn_limit (default off) to
provide greater granularity of control for panic_on_oops and
panic_on_warn (Jann Horn, Kees Cook)
- Introduce overflows_type() and castable_to_type() helpers for cleaner
overflow checking
- Improve code generation for strscpy() and update str*() kern-doc
- Convert strscpy and sigphash tests to KUnit, and expand memcpy tests
- Always use a non-NULL argument for prepare_kernel_cred()
- Disable structleak plugin in FORTIFY KUnit test (Anders Roxell)
- Adjust orphan linker section checking to respect CONFIG_WERROR (Xin
Li)
- Make sure siginfo is cleared for forced SIGKILL (haifeng.xu)
- Fix um vs FORTIFY warnings for always-NULL arguments
* tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (31 commits)
ksmbd: replace one-element arrays with flexible-array members
hpet: Replace one-element array with flexible-array member
um: virt-pci: Avoid GCC non-NULL warning
signal: Initialize the info in ksignal
lib: fortify_kunit: build without structleak plugin
panic: Expose "warn_count" to sysfs
panic: Introduce warn_limit
panic: Consolidate open-coded panic_on_warn checks
exit: Allow oops_limit to be disabled
exit: Expose "oops_count" to sysfs
exit: Put an upper limit on how often we can oops
panic: Separate sysctl logic from CONFIG_SMP
mm/pgtable: Fix multiple -Wstringop-overflow warnings
mm: Make ksize() a reporting-only function
kunit/fortify: Validate __alloc_size attribute results
drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid()
drm/fsl-dcu: Fix return type of fsl_dcu_drm_connector_mode_valid()
driver core: Add __alloc_size hint to devm allocators
overflow: Introduce overflows_type() and castable_to_type()
coredump: Proactively round up to kmalloc bucket size
...
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Linus Torvalds
|
fc4c9f4504 |
EFI updates for v6.2:
- Refactor the zboot code so that it incorporates all the EFI stub
logic, rather than calling the decompressed kernel as a EFI app.
- Add support for initrd= command line option to x86 mixed mode.
- Allow initrd= to be used with arbitrary EFI accessible file systems
instead of just the one the kernel itself was loaded from.
- Move some x86-only handling and manipulation of the EFI memory map
into arch/x86, as it is not used anywhere else.
- More flexible handling of any random seeds provided by the boot
environment (i.e., systemd-boot) so that it becomes available much
earlier during the boot.
- Allow improved arch-agnostic EFI support in loaders, by setting a
uniform baseline of supported features, and adding a generic magic
number to the DOS/PE header. This should allow loaders such as GRUB or
systemd-boot to reduce the amount of arch-specific handling
substantially.
- (arm64) Run EFI runtime services from a dedicated stack, and use it to
recover from synchronous exceptions that might occur in the firmware
code.
- (arm64) Ensure that we don't allocate memory outside of the 48-bit
addressable physical range.
- Make EFI pstore record size configurable
- Add support for decoding CXL specific CPER records
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Merge tag 'efi-next-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI updates from Ard Biesheuvel:
"Another fairly sizable pull request, by EFI subsystem standards.
Most of the work was done by me, some of it in collaboration with the
distro and bootloader folks (GRUB, systemd-boot), where the main focus
has been on removing pointless per-arch differences in the way EFI
boots a Linux kernel.
- Refactor the zboot code so that it incorporates all the EFI stub
logic, rather than calling the decompressed kernel as a EFI app.
- Add support for initrd= command line option to x86 mixed mode.
- Allow initrd= to be used with arbitrary EFI accessible file systems
instead of just the one the kernel itself was loaded from.
- Move some x86-only handling and manipulation of the EFI memory map
into arch/x86, as it is not used anywhere else.
- More flexible handling of any random seeds provided by the boot
environment (i.e., systemd-boot) so that it becomes available much
earlier during the boot.
- Allow improved arch-agnostic EFI support in loaders, by setting a
uniform baseline of supported features, and adding a generic magic
number to the DOS/PE header. This should allow loaders such as GRUB
or systemd-boot to reduce the amount of arch-specific handling
substantially.
- (arm64) Run EFI runtime services from a dedicated stack, and use it
to recover from synchronous exceptions that might occur in the
firmware code.
- (arm64) Ensure that we don't allocate memory outside of the 48-bit
addressable physical range.
- Make EFI pstore record size configurable
- Add support for decoding CXL specific CPER records"
* tag 'efi-next-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: (43 commits)
arm64: efi: Recover from synchronous exceptions occurring in firmware
arm64: efi: Execute runtime services from a dedicated stack
arm64: efi: Limit allocations to 48-bit addressable physical region
efi: Put Linux specific magic number in the DOS header
efi: libstub: Always enable initrd command line loader and bump version
efi: stub: use random seed from EFI variable
efi: vars: prohibit reading random seed variables
efi: random: combine bootloader provided RNG seed with RNG protocol output
efi/cper, cxl: Decode CXL Error Log
efi/cper, cxl: Decode CXL Protocol Error Section
efi: libstub: fix efi_load_initrd_dev_path() kernel-doc comment
efi: x86: Move EFI runtime map sysfs code to arch/x86
efi: runtime-maps: Clarify purpose and enable by default for kexec
efi: pstore: Add module parameter for setting the record size
efi: xen: Set EFI_PARAVIRT for Xen dom0 boot on all architectures
efi: memmap: Move manipulation routines into x86 arch tree
efi: memmap: Move EFI fake memmap support into x86 arch tree
efi: libstub: Undeprecate the command line initrd loader
efi: libstub: Add mixed mode support to command line initrd loader
efi: libstub: Permit mixed mode return types other than efi_status_t
...
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Linus Torvalds
|
8702f2c611 |
Non-MM patches for 6.2-rc1.
- A ptrace API cleanup series from Sergey Shtylyov - Fixes and cleanups for kexec from ye xingchen - nilfs2 updates from Ryusuke Konishi - squashfs feature work from Xiaoming Ni: permit configuration of the filesystem's compression concurrency from the mount command line. - A series from Akinobu Mita which addresses bound checking errors when writing to debugfs files. - A series from Yang Yingliang to address rapido memory leaks - A series from Zheng Yejian to address possible overflow errors in encode_comp_t(). - And a whole shower of singleton patches all over the place. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY5efRgAKCRDdBJ7gKXxA jgvdAP0al6oFDtaSsshIdNhrzcMwfjt6PfVxxHdLmNhF1hX2dwD/SVluS1bPSP7y 0sZp7Ustu3YTb8aFkMl96Y9m9mY1Nwg= =ga5B -----END PGP SIGNATURE----- Merge tag 'mm-nonmm-stable-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: - A ptrace API cleanup series from Sergey Shtylyov - Fixes and cleanups for kexec from ye xingchen - nilfs2 updates from Ryusuke Konishi - squashfs feature work from Xiaoming Ni: permit configuration of the filesystem's compression concurrency from the mount command line - A series from Akinobu Mita which addresses bound checking errors when writing to debugfs files - A series from Yang Yingliang to address rapidio memory leaks - A series from Zheng Yejian to address possible overflow errors in encode_comp_t() - And a whole shower of singleton patches all over the place * tag 'mm-nonmm-stable-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (79 commits) ipc: fix memory leak in init_mqueue_fs() hfsplus: fix bug causing custom uid and gid being unable to be assigned with mount rapidio: devices: fix missing put_device in mport_cdev_open kcov: fix spelling typos in comments hfs: Fix OOB Write in hfs_asc2mac hfs: fix OOB Read in __hfs_brec_find relay: fix type mismatch when allocating memory in relay_create_buf() ocfs2: always read both high and low parts of dinode link count io-mapping: move some code within the include guarded section kernel: kcsan: kcsan_test: build without structleak plugin mailmap: update email for Iskren Chernev eventfd: change int to __u64 in eventfd_signal() ifndef CONFIG_EVENTFD rapidio: fix possible UAF when kfifo_alloc() fails relay: use strscpy() is more robust and safer cpumask: limit visibility of FORCE_NR_CPUS acct: fix potential integer overflow in encode_comp_t() acct: fix accuracy loss for input value of encode_comp_t() linux/init.h: include <linux/build_bug.h> and <linux/stringify.h> rapidio: rio: fix possible name leak in rio_register_mport() rapidio: fix possible name leaks when rio_add_device() fails ... |
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Linus Torvalds
|
268325bda5 |
Random number generator updates for Linux 6.2-rc1.
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Merge tag 'random-6.2-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull random number generator updates from Jason Donenfeld:
- Replace prandom_u32_max() and various open-coded variants of it,
there is now a new family of functions that uses fast rejection
sampling to choose properly uniformly random numbers within an
interval:
get_random_u32_below(ceil) - [0, ceil)
get_random_u32_above(floor) - (floor, U32_MAX]
get_random_u32_inclusive(floor, ceil) - [floor, ceil]
Coccinelle was used to convert all current users of
prandom_u32_max(), as well as many open-coded patterns, resulting in
improvements throughout the tree.
I'll have a "late" 6.1-rc1 pull for you that removes the now unused
prandom_u32_max() function, just in case any other trees add a new
use case of it that needs to converted. According to linux-next,
there may be two trivial cases of prandom_u32_max() reintroductions
that are fixable with a 's/.../.../'. So I'll have for you a final
conversion patch doing that alongside the removal patch during the
second week.
This is a treewide change that touches many files throughout.
- More consistent use of get_random_canary().
- Updates to comments, documentation, tests, headers, and
simplification in configuration.
- The arch_get_random*_early() abstraction was only used by arm64 and
wasn't entirely useful, so this has been replaced by code that works
in all relevant contexts.
- The kernel will use and manage random seeds in non-volatile EFI
variables, refreshing a variable with a fresh seed when the RNG is
initialized. The RNG GUID namespace is then hidden from efivarfs to
prevent accidental leakage.
These changes are split into random.c infrastructure code used in the
EFI subsystem, in this pull request, and related support inside of
EFISTUB, in Ard's EFI tree. These are co-dependent for full
functionality, but the order of merging doesn't matter.
- Part of the infrastructure added for the EFI support is also used for
an improvement to the way vsprintf initializes its siphash key,
replacing an sleep loop wart.
- The hardware RNG framework now always calls its correct random.c
input function, add_hwgenerator_randomness(), rather than sometimes
going through helpers better suited for other cases.
- The add_latent_entropy() function has long been called from the fork
handler, but is a no-op when the latent entropy gcc plugin isn't
used, which is fine for the purposes of latent entropy.
But it was missing out on the cycle counter that was also being mixed
in beside the latent entropy variable. So now, if the latent entropy
gcc plugin isn't enabled, add_latent_entropy() will expand to a call
to add_device_randomness(NULL, 0), which adds a cycle counter,
without the absent latent entropy variable.
- The RNG is now reseeded from a delayed worker, rather than on demand
when used. Always running from a worker allows it to make use of the
CPU RNG on platforms like S390x, whose instructions are too slow to
do so from interrupts. It also has the effect of adding in new inputs
more frequently with more regularity, amounting to a long term
transcript of random values. Plus, it helps a bit with the upcoming
vDSO implementation (which isn't yet ready for 6.2).
- The jitter entropy algorithm now tries to execute on many different
CPUs, round-robining, in hopes of hitting even more memory latencies
and other unpredictable effects. It also will mix in a cycle counter
when the entropy timer fires, in addition to being mixed in from the
main loop, to account more explicitly for fluctuations in that timer
firing. And the state it touches is now kept within the same cache
line, so that it's assured that the different execution contexts will
cause latencies.
* tag 'random-6.2-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random: (23 commits)
random: include <linux/once.h> in the right header
random: align entropy_timer_state to cache line
random: mix in cycle counter when jitter timer fires
random: spread out jitter callback to different CPUs
random: remove extraneous period and add a missing one in comments
efi: random: refresh non-volatile random seed when RNG is initialized
vsprintf: initialize siphash key using notifier
random: add back async readiness notifier
random: reseed in delayed work rather than on-demand
random: always mix cycle counter in add_latent_entropy()
hw_random: use add_hwgenerator_randomness() for early entropy
random: modernize documentation comment on get_random_bytes()
random: adjust comment to account for removed function
random: remove early archrandom abstraction
random: use random.trust_{bootloader,cpu} command line option only
stackprotector: actually use get_random_canary()
stackprotector: move get_random_canary() into stackprotector.h
treewide: use get_random_u32_inclusive() when possible
treewide: use get_random_u32_{above,below}() instead of manual loop
treewide: use get_random_u32_below() instead of deprecated function
...
|
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|
Linus Torvalds
|
add7695957 |
Perf events updates for v6.2:
- Thoroughly rewrite the data structures that implement perf task context handling,
with the goal of fixing various quirks and unfeatures both in already merged,
and in upcoming proposed code.
The old data structure is the per task and per cpu perf_event_contexts:
task_struct::perf_events_ctxp[] <-> perf_event_context <-> perf_cpu_context
^ | ^ | ^
`---------------------------------' | `--> pmu ---'
v ^
perf_event ------'
In this new design this is replaced with a single task context and
a single CPU context, plus intermediate data-structures:
task_struct::perf_event_ctxp -> perf_event_context <- perf_cpu_context
^ | ^ ^
`---------------------------' | |
| | perf_cpu_pmu_context <--.
| `----. ^ |
| | | |
| v v |
| ,--> perf_event_pmu_context |
| | |
| | |
v v |
perf_event ---> pmu ----------------'
[ See commit
|
||
|
Linus Torvalds
|
456ed864fd |
ACPI updates for 6.2-rc1
- Update the ACPICA code in the kernel to the 20221020 upstream
version and fix a couple of issues in it:
* Make acpi_ex_load_op() match upstream implementation (Rafael
Wysocki).
* Add support for loong_arch-specific APICs in MADT (Huacai Chen).
* Add support for fixed PCIe wake event (Huacai Chen).
* Add EBDA pointer sanity checks (Vit Kabele).
* Avoid accessing VGA memory when EBDA < 1KiB (Vit Kabele).
* Add CCEL table support to both compiler/disassembler (Kuppuswamy
Sathyanarayanan).
* Add a couple of new UUIDs to the known UUID list (Bob Moore).
* Add support for FFH Opregion special context data (Sudeep Holla).
* Improve warning message for "invalid ACPI name" (Bob Moore).
* Add support for CXL 3.0 structures (CXIMS & RDPAS) in the CEDT
table (Alison Schofield).
* Prepare IORT support for revision E.e (Robin Murphy).
* Finish support for the CDAT table (Bob Moore).
* Fix error code path in acpi_ds_call_control_method() (Rafael
Wysocki).
* Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() (Li
Zetao).
* Update the version of the ACPICA code in the kernel (Bob Moore).
- Use ZERO_PAGE(0) instead of empty_zero_page in the ACPI device
enumeration code (Giulio Benetti).
- Change the return type of the ACPI driver remove callback to void and
update its users accordingly (Dawei Li).
- Add general support for FFH address space type and implement the low-
level part of it for ARM64 (Sudeep Holla).
- Fix stale comments in the ACPI tables parsing code and make it print
more messages related to MADT (Hanjun Guo, Huacai Chen).
- Replace invocations of generic library functions with more kernel-
specific counterparts in the ACPI sysfs interface (Christophe JAILLET,
Xu Panda).
- Print full name paths of ACPI power resource objects during
enumeration (Kane Chen).
- Eliminate a compiler warning regarding a missing function prototype
in the ACPI power management code (Sudeep Holla).
- Fix and clean up the ACPI processor driver (Rafael Wysocki, Li Zhong,
Colin Ian King, Sudeep Holla).
- Add quirk for the HP Pavilion Gaming 15-cx0041ur to the ACPI EC
driver (Mia Kanashi).
- Add some mew ACPI backlight handling quirks and update some existing
ones (Hans de Goede).
- Make the ACPI backlight driver prefer the native backlight control
over vendor backlight control when possible (Hans de Goede).
- Drop unsetting ACPI APEI driver data on remove (Uwe Kleine-König).
- Use xchg_release() instead of cmpxchg() for updating new GHES cache
slots (Ard Biesheuvel).
- Clean up the ACPI APEI code (Sudeep Holla, Christophe JAILLET, Jay Lu).
- Add new I2C device enumeration quirks for Medion Lifetab S10346 and
Lenovo Yoga Tab 3 Pro (YT3-X90F) (Hans de Goede).
- Make the ACPI battery driver notify user space about adding new
battery hooks and removing the existing ones (Armin Wolf).
- Modify the pfr_update and pfr_telemetry drivers to use ACPI_FREE()
for freeing acpi_object structures to help diagnostics (Wang ShaoBo).
- Make the ACPI fan driver use sysfs_emit_at() in its sysfs interface
code (ye xingchen).
- Fix the _FIF package extraction failure handling in the ACPI fan
driver (Hanjun Guo).
- Fix the PCC mailbox handling error code path (Huisong Li).
- Avoid using PCC Opregions if there is no platform interrupt allocated
for this purpose (Huisong Li).
- Use sysfs_emit() instead of scnprintf() in the ACPI PAD driver and
CPPC library (ye xingchen).
- Fix some kernel-doc issues in the ACPI GSI processing code (Xiongfeng
Wang).
- Fix name memory leak in pnp_alloc_dev() (Yang Yingliang).
- Do not disable PNP devices on suspend when they cannot be re-enabled
on resume (Hans de Goede).
- Clean up the ACPI thermal driver a bit (Rafael Wysocki).
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Merge tag 'acpi-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and PNP updates from Rafael Wysocki:
"These include new code (for instance, support for the FFH address
space type and support for new firmware data structures in ACPICA),
some new quirks (mostly related to backlight handling and I2C
enumeration), a number of fixes and a fair amount of cleanups all
over.
Specifics:
- Update the ACPICA code in the kernel to the 20221020 upstream
version and fix a couple of issues in it:
- Make acpi_ex_load_op() match upstream implementation (Rafael
Wysocki)
- Add support for loong_arch-specific APICs in MADT (Huacai Chen)
- Add support for fixed PCIe wake event (Huacai Chen)
- Add EBDA pointer sanity checks (Vit Kabele)
- Avoid accessing VGA memory when EBDA < 1KiB (Vit Kabele)
- Add CCEL table support to both compiler/disassembler (Kuppuswamy
Sathyanarayanan)
- Add a couple of new UUIDs to the known UUID list (Bob Moore)
- Add support for FFH Opregion special context data (Sudeep
Holla)
- Improve warning message for "invalid ACPI name" (Bob Moore)
- Add support for CXL 3.0 structures (CXIMS & RDPAS) in the CEDT
table (Alison Schofield)
- Prepare IORT support for revision E.e (Robin Murphy)
- Finish support for the CDAT table (Bob Moore)
- Fix error code path in acpi_ds_call_control_method() (Rafael
Wysocki)
- Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() (Li
Zetao)
- Update the version of the ACPICA code in the kernel (Bob Moore)
- Use ZERO_PAGE(0) instead of empty_zero_page in the ACPI device
enumeration code (Giulio Benetti)
- Change the return type of the ACPI driver remove callback to void
and update its users accordingly (Dawei Li)
- Add general support for FFH address space type and implement the
low- level part of it for ARM64 (Sudeep Holla)
- Fix stale comments in the ACPI tables parsing code and make it
print more messages related to MADT (Hanjun Guo, Huacai Chen)
- Replace invocations of generic library functions with more kernel-
specific counterparts in the ACPI sysfs interface (Christophe
JAILLET, Xu Panda)
- Print full name paths of ACPI power resource objects during
enumeration (Kane Chen)
- Eliminate a compiler warning regarding a missing function prototype
in the ACPI power management code (Sudeep Holla)
- Fix and clean up the ACPI processor driver (Rafael Wysocki, Li
Zhong, Colin Ian King, Sudeep Holla)
- Add quirk for the HP Pavilion Gaming 15-cx0041ur to the ACPI EC
driver (Mia Kanashi)
- Add some mew ACPI backlight handling quirks and update some
existing ones (Hans de Goede)
- Make the ACPI backlight driver prefer the native backlight control
over vendor backlight control when possible (Hans de Goede)
- Drop unsetting ACPI APEI driver data on remove (Uwe Kleine-König)
- Use xchg_release() instead of cmpxchg() for updating new GHES cache
slots (Ard Biesheuvel)
- Clean up the ACPI APEI code (Sudeep Holla, Christophe JAILLET, Jay
Lu)
- Add new I2C device enumeration quirks for Medion Lifetab S10346 and
Lenovo Yoga Tab 3 Pro (YT3-X90F) (Hans de Goede)
- Make the ACPI battery driver notify user space about adding new
battery hooks and removing the existing ones (Armin Wolf)
- Modify the pfr_update and pfr_telemetry drivers to use ACPI_FREE()
for freeing acpi_object structures to help diagnostics (Wang
ShaoBo)
- Make the ACPI fan driver use sysfs_emit_at() in its sysfs interface
code (ye xingchen)
- Fix the _FIF package extraction failure handling in the ACPI fan
driver (Hanjun Guo)
- Fix the PCC mailbox handling error code path (Huisong Li)
- Avoid using PCC Opregions if there is no platform interrupt
allocated for this purpose (Huisong Li)
- Use sysfs_emit() instead of scnprintf() in the ACPI PAD driver and
CPPC library (ye xingchen)
- Fix some kernel-doc issues in the ACPI GSI processing code
(Xiongfeng Wang)
- Fix name memory leak in pnp_alloc_dev() (Yang Yingliang)
- Do not disable PNP devices on suspend when they cannot be
re-enabled on resume (Hans de Goede)
- Clean up the ACPI thermal driver a bit (Rafael Wysocki)"
* tag 'acpi-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (67 commits)
ACPI: x86: Add skip i2c clients quirk for Medion Lifetab S10346
ACPI: APEI: EINJ: Refactor available_error_type_show()
ACPI: APEI: EINJ: Fix formatting errors
ACPI: processor: perflib: Adjust acpi_processor_notify_smm() return value
ACPI: processor: perflib: Rearrange acpi_processor_notify_smm()
ACPI: processor: perflib: Rearrange unregistration routine
ACPI: processor: perflib: Drop redundant parentheses
ACPI: processor: perflib: Adjust white space
ACPI: processor: idle: Drop unnecessary statements and parens
ACPI: thermal: Adjust critical.flags.valid check
ACPI: fan: Convert to use sysfs_emit_at() API
ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage()
ACPI: battery: Call power_supply_changed() when adding hooks
ACPI: use sysfs_emit() instead of scnprintf()
ACPI: x86: Add skip i2c clients quirk for Lenovo Yoga Tab 3 Pro (YT3-X90F)
ACPI: APEI: Remove a useless include
PNP: Do not disable devices on suspend when they cannot be re-enabled on resume
ACPI: processor: Silence missing prototype warnings
ACPI: processor_idle: Silence missing prototype warnings
ACPI: PM: Silence missing prototype warning
...
|
||
|
Linus Torvalds
|
0a1d4434db |
Updates for timers, timekeeping and drivers:
- Core:
- The timer_shutdown[_sync]() infrastructure:
Tearing down timers can be tedious when there are circular
dependencies to other things which need to be torn down. A prime
example is timer and workqueue where the timer schedules work and the
work arms the timer.
What needs to prevented is that pending work which is drained via
destroy_workqueue() does not rearm the previously shutdown
timer. Nothing in that shutdown sequence relies on the timer being
functional.
The conclusion was that the semantics of timer_shutdown_sync() should
be:
- timer is not enqueued
- timer callback is not running
- timer cannot be rearmed
Preventing the rearming of shutdown timers is done by discarding rearm
attempts silently. A warning for the case that a rearm attempt of a
shutdown timer is detected would not be really helpful because it's
entirely unclear how it should be acted upon. The only way to address
such a case is to add 'if (in_shutdown)' conditionals all over the
place. This is error prone and in most cases of teardown not required
all.
- The real fix for the bluetooth HCI teardown based on
timer_shutdown_sync().
A larger scale conversion to timer_shutdown_sync() is work in
progress.
- Consolidation of VDSO time namespace helper functions
- Small fixes for timer and timerqueue
- Drivers:
- Prevent integer overflow on the XGene-1 TVAL register which causes
an never ending interrupt storm.
- The usual set of new device tree bindings
- Small fixes and improvements all over the place
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Merge tag 'timers-core-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"Updates for timers, timekeeping and drivers:
Core:
- The timer_shutdown[_sync]() infrastructure:
Tearing down timers can be tedious when there are circular
dependencies to other things which need to be torn down. A prime
example is timer and workqueue where the timer schedules work and
the work arms the timer.
What needs to prevented is that pending work which is drained via
destroy_workqueue() does not rearm the previously shutdown timer.
Nothing in that shutdown sequence relies on the timer being
functional.
The conclusion was that the semantics of timer_shutdown_sync()
should be:
- timer is not enqueued
- timer callback is not running
- timer cannot be rearmed
Preventing the rearming of shutdown timers is done by discarding
rearm attempts silently.
A warning for the case that a rearm attempt of a shutdown timer is
detected would not be really helpful because it's entirely unclear
how it should be acted upon. The only way to address such a case is
to add 'if (in_shutdown)' conditionals all over the place. This is
error prone and in most cases of teardown not required all.
- The real fix for the bluetooth HCI teardown based on
timer_shutdown_sync().
A larger scale conversion to timer_shutdown_sync() is work in
progress.
- Consolidation of VDSO time namespace helper functions
- Small fixes for timer and timerqueue
Drivers:
- Prevent integer overflow on the XGene-1 TVAL register which causes
an never ending interrupt storm.
- The usual set of new device tree bindings
- Small fixes and improvements all over the place"
* tag 'timers-core-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
dt-bindings: timer: renesas,cmt: Add r8a779g0 CMT support
dt-bindings: timer: renesas,tmu: Add r8a779g0 support
clocksource/drivers/arm_arch_timer: Use kstrtobool() instead of strtobool()
clocksource/drivers/timer-ti-dm: Fix missing clk_disable_unprepare in dmtimer_systimer_init_clock()
clocksource/drivers/timer-ti-dm: Clear settings on probe and free
clocksource/drivers/timer-ti-dm: Make timer_get_irq static
clocksource/drivers/timer-ti-dm: Fix warning for omap_timer_match
clocksource/drivers/arm_arch_timer: Fix XGene-1 TVAL register math error
clocksource/drivers/timer-npcm7xx: Enable timer 1 clock before use
dt-bindings: timer: nuvoton,npcm7xx-timer: Allow specifying all clocks
dt-bindings: timer: rockchip: Add rockchip,rk3128-timer
clockevents: Repair kernel-doc for clockevent_delta2ns()
clocksource/drivers/ingenic-ost: Define pm functions properly in platform_driver struct
clocksource/drivers/sh_cmt: Access registers according to spec
vdso/timens: Refactor copy-pasted find_timens_vvar_page() helper into one copy
Bluetooth: hci_qca: Fix the teardown problem for real
timers: Update the documentation to reflect on the new timer_shutdown() API
timers: Provide timer_shutdown[_sync]()
timers: Add shutdown mechanism to the internal functions
timers: Split [try_to_]del_timer[_sync]() to prepare for shutdown mode
...
|
||
|
Linus Torvalds
|
06cff4a58e |
arm64 updates for 6.2
ACPI:
* Enable FPDT support for boot-time profiling
* Fix CPU PMU probing to work better with PREEMPT_RT
* Update SMMUv3 MSI DeviceID parsing to latest IORT spec
* APMT support for probing Arm CoreSight PMU devices
CPU features:
* Advertise new SVE instructions (v2.1)
* Advertise range prefetch instruction
* Advertise CSSC ("Common Short Sequence Compression") scalar
instructions, adding things like min, max, abs, popcount
* Enable DIT (Data Independent Timing) when running in the kernel
* More conversion of system register fields over to the generated
header
CPU misfeatures:
* Workaround for Cortex-A715 erratum #2645198
Dynamic SCS:
* Support for dynamic shadow call stacks to allow switching at
runtime between Clang's SCS implementation and the CPU's
pointer authentication feature when it is supported (complete
with scary DWARF parser!)
Tracing and debug:
* Remove static ftrace in favour of, err, dynamic ftrace!
* Seperate 'struct ftrace_regs' from 'struct pt_regs' in core
ftrace and existing arch code
* Introduce and implement FTRACE_WITH_ARGS on arm64 to replace
the old FTRACE_WITH_REGS
* Extend 'crashkernel=' parameter with default value and fallback
to placement above 4G physical if initial (low) allocation
fails
SVE:
* Optimisation to avoid disabling SVE unconditionally on syscall
entry and just zeroing the non-shared state on return instead
Exceptions:
* Rework of undefined instruction handling to avoid serialisation
on global lock (this includes emulation of user accesses to the
ID registers)
Perf and PMU:
* Support for TLP filters in Hisilicon's PCIe PMU device
* Support for the DDR PMU present in Amlogic Meson G12 SoCs
* Support for the terribly-named "CoreSight PMU" architecture
from Arm (and Nvidia's implementation of said architecture)
Misc:
* Tighten up our boot protocol for systems with memory above
52 bits physical
* Const-ify static keys to satisty jump label asm constraints
* Trivial FFA driver cleanups in preparation for v1.1 support
* Export the kernel_neon_* APIs as GPL symbols
* Harden our instruction generation routines against
instrumentation
* A bunch of robustness improvements to our arch-specific selftests
* Minor cleanups and fixes all over (kbuild, kprobes, kfence, PMU, ...)
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"The highlights this time are support for dynamically enabling and
disabling Clang's Shadow Call Stack at boot and a long-awaited
optimisation to the way in which we handle the SVE register state on
system call entry to avoid taking unnecessary traps from userspace.
Summary:
ACPI:
- Enable FPDT support for boot-time profiling
- Fix CPU PMU probing to work better with PREEMPT_RT
- Update SMMUv3 MSI DeviceID parsing to latest IORT spec
- APMT support for probing Arm CoreSight PMU devices
CPU features:
- Advertise new SVE instructions (v2.1)
- Advertise range prefetch instruction
- Advertise CSSC ("Common Short Sequence Compression") scalar
instructions, adding things like min, max, abs, popcount
- Enable DIT (Data Independent Timing) when running in the kernel
- More conversion of system register fields over to the generated
header
CPU misfeatures:
- Workaround for Cortex-A715 erratum #2645198
Dynamic SCS:
- Support for dynamic shadow call stacks to allow switching at
runtime between Clang's SCS implementation and the CPU's pointer
authentication feature when it is supported (complete with scary
DWARF parser!)
Tracing and debug:
- Remove static ftrace in favour of, err, dynamic ftrace!
- Seperate 'struct ftrace_regs' from 'struct pt_regs' in core ftrace
and existing arch code
- Introduce and implement FTRACE_WITH_ARGS on arm64 to replace the
old FTRACE_WITH_REGS
- Extend 'crashkernel=' parameter with default value and fallback to
placement above 4G physical if initial (low) allocation fails
SVE:
- Optimisation to avoid disabling SVE unconditionally on syscall
entry and just zeroing the non-shared state on return instead
Exceptions:
- Rework of undefined instruction handling to avoid serialisation on
global lock (this includes emulation of user accesses to the ID
registers)
Perf and PMU:
- Support for TLP filters in Hisilicon's PCIe PMU device
- Support for the DDR PMU present in Amlogic Meson G12 SoCs
- Support for the terribly-named "CoreSight PMU" architecture from
Arm (and Nvidia's implementation of said architecture)
Misc:
- Tighten up our boot protocol for systems with memory above 52 bits
physical
- Const-ify static keys to satisty jump label asm constraints
- Trivial FFA driver cleanups in preparation for v1.1 support
- Export the kernel_neon_* APIs as GPL symbols
- Harden our instruction generation routines against instrumentation
- A bunch of robustness improvements to our arch-specific selftests
- Minor cleanups and fixes all over (kbuild, kprobes, kfence, PMU, ...)"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (151 commits)
arm64: kprobes: Return DBG_HOOK_ERROR if kprobes can not handle a BRK
arm64: kprobes: Let arch do_page_fault() fix up page fault in user handler
arm64: Prohibit instrumentation on arch_stack_walk()
arm64:uprobe fix the uprobe SWBP_INSN in big-endian
arm64: alternatives: add __init/__initconst to some functions/variables
arm_pmu: Drop redundant armpmu->map_event() in armpmu_event_init()
kselftest/arm64: Allow epoll_wait() to return more than one result
kselftest/arm64: Don't drain output while spawning children
kselftest/arm64: Hold fp-stress children until they're all spawned
arm64/sysreg: Remove duplicate definitions from asm/sysreg.h
arm64/sysreg: Convert ID_DFR1_EL1 to automatic generation
arm64/sysreg: Convert ID_DFR0_EL1 to automatic generation
arm64/sysreg: Convert ID_AFR0_EL1 to automatic generation
arm64/sysreg: Convert ID_MMFR5_EL1 to automatic generation
arm64/sysreg: Convert MVFR2_EL1 to automatic generation
arm64/sysreg: Convert MVFR1_EL1 to automatic generation
arm64/sysreg: Convert MVFR0_EL1 to automatic generation
arm64/sysreg: Convert ID_PFR2_EL1 to automatic generation
arm64/sysreg: Convert ID_PFR1_EL1 to automatic generation
arm64/sysreg: Convert ID_PFR0_EL1 to automatic generation
...
|
||
|
Rafael J. Wysocki
|
45494d77f2 |
Merge branches 'acpi-scan', 'acpi-bus', 'acpi-tables' and 'acpi-sysfs'
Merge ACPI changes related to device enumeration, device object managenet, operation region handling, table parsing and sysfs interface: - Use ZERO_PAGE(0) instead of empty_zero_page in the ACPI device enumeration code (Giulio Benetti). - Change the return type of the ACPI driver remove callback to void and update its users accordingly (Dawei Li). - Add general support for FFH address space type and implement the low- level part of it for ARM64 (Sudeep Holla). - Fix stale comments in the ACPI tables parsing code and make it print more messages related to MADT (Hanjun Guo, Huacai Chen). - Replace invocations of generic library functions with more kernel- specific counterparts in the ACPI sysfs interface (Christophe JAILLET, Xu Panda). * acpi-scan: ACPI: scan: substitute empty_zero_page with helper ZERO_PAGE(0) * acpi-bus: ACPI: FFH: Silence missing prototype warnings ACPI: make remove callback of ACPI driver void ACPI: bus: Fix the _OSC capability check for FFH OpRegion arm64: Add architecture specific ACPI FFH Opregion callbacks ACPI: Implement a generic FFH Opregion handler * acpi-tables: ACPI: tables: Fix the stale comments for acpi_locate_initial_tables() ACPI: tables: Print CORE_PIC information when MADT is parsed * acpi-sysfs: ACPI: sysfs: use sysfs_emit() to instead of scnprintf() ACPI: sysfs: Use kstrtobool() instead of strtobool() |
||
|
Ard Biesheuvel
|
e8dfdf3162 |
arm64: efi: Recover from synchronous exceptions occurring in firmware
Unlike x86, which has machinery to deal with page faults that occur during the execution of EFI runtime services, arm64 has nothing like that, and a synchronous exception raised by firmware code brings down the whole system. With more EFI based systems appearing that were not built to run Linux (such as the Windows-on-ARM laptops based on Qualcomm SOCs), as well as the introduction of PRM (platform specific firmware routines that are callable just like EFI runtime services), we are more likely to run into issues of this sort, and it is much more likely that we can identify and work around such issues if they don't bring down the system entirely. Since we already use a EFI runtime services call wrapper in assembler, we can quite easily add some code that captures the execution state at the point where the call is made, allowing us to revert to this state and proceed execution if the call triggered a synchronous exception. Given that the kernel and the firmware don't share any data structures that could end up in an indeterminate state, we can happily continue running, as long as we mark the EFI runtime services as unavailable from that point on. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> |
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Ard Biesheuvel
|
ff7a167961 |
arm64: efi: Execute runtime services from a dedicated stack
With the introduction of PRMT in the ACPI subsystem, the EFI rts workqueue is no longer the only caller of efi_call_virt_pointer() in the kernel. This means the EFI runtime services lock is no longer sufficient to manage concurrent calls into firmware, but also that firmware calls may occur that are not marshalled via the workqueue mechanism, but originate directly from the caller context. For added robustness, and to ensure that the runtime services have 8 KiB of stack space available as per the EFI spec, introduce a spinlock protected EFI runtime stack of 8 KiB, where the spinlock also ensures serialization between the EFI rts workqueue (which itself serializes EFI runtime calls) and other callers of efi_call_virt_pointer(). While at it, use the stack pivot to avoid reloading the shadow call stack pointer from the ordinary stack, as doing so could produce a gadget to defeat it. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> |
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Ard Biesheuvel
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d9f26ae731 |
Linux 6.1-rc8
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmONI6weHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG9xgH/jqXGuMoO1ikfmGb 7oY0W/f69G9V/e0DxFLvnIjhFgCUzdnNsmD4jQJA4x6QsxwLWuvpI282Ez+bHV5T U4RPsxJZIIMsXE2lKM9BRgeLzDdCt0aK4Pj+3x2x7NZC5cWFSQ8PyQJkCwg+0PQo u8Ly+GO8c4RUMf4/rrAZQq16qZUqGDaGm1EJhtSoa+KiR81LmUUmbDIK9Mr53rmQ wou+95XhibwMWr17WgXA28bTgYqn9UGr67V3qvTH2LC7GW8BCoKvn+3wh6TVhlWj dsWplXgcOP0/OHvSC5Sb1Uibk5Gx3DlIzYa6OfNZQuZ5xmQqm9kXjW8lmYpWFHy/ 38/5HWc= =EuoA -----END PGP SIGNATURE----- Merge tag 'v6.1-rc8' into efi/next Linux 6.1-rc8 |
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Will Deacon
|
5f4c374760 |
Merge branch 'for-next/undef-traps' into for-next/core
* for-next/undef-traps: arm64: armv8_deprecated: fix unused-function error arm64: armv8_deprecated: rework deprected instruction handling arm64: armv8_deprecated: move aarch32 helper earlier arm64: armv8_deprecated move emulation functions arm64: armv8_deprecated: fold ops into insn_emulation arm64: rework EL0 MRS emulation arm64: factor insn read out of call_undef_hook() arm64: factor out EL1 SSBS emulation hook arm64: split EL0/EL1 UNDEF handlers arm64: allow kprobes on EL0 handlers |
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Will Deacon
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9d84ad425d |
Merge branch 'for-next/trivial' into for-next/core
* for-next/trivial: arm64: alternatives: add __init/__initconst to some functions/variables arm64/asm: Remove unused assembler DAIF save/restore macros arm64/kpti: Move DAIF masking to C code Revert "arm64/mm: Drop redundant BUG_ON(!pgtable_alloc)" arm64/mm: Drop unused restore_ttbr1 arm64: alternatives: make apply_alternatives_vdso() static arm64/mm: Drop idmap_pg_end[] declaration arm64/mm: Drop redundant BUG_ON(!pgtable_alloc) arm64: make is_ttbrX_addr() noinstr-safe arm64/signal: Document our convention for choosing magic numbers arm64: atomics: lse: remove stale dependency on JUMP_LABEL arm64: paravirt: remove conduit check in has_pv_steal_clock arm64: entry: Fix typo arm64/booting: Add missing colon to FA64 entry arm64/mm: Drop ARM64_KERNEL_USES_PMD_MAPS arm64/asm: Remove unused enable_da macro |
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Will Deacon
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70b1c62a67 |
Merge branch 'for-next/sysregs' into for-next/core
* for-next/sysregs: (39 commits) arm64/sysreg: Remove duplicate definitions from asm/sysreg.h arm64/sysreg: Convert ID_DFR1_EL1 to automatic generation arm64/sysreg: Convert ID_DFR0_EL1 to automatic generation arm64/sysreg: Convert ID_AFR0_EL1 to automatic generation arm64/sysreg: Convert ID_MMFR5_EL1 to automatic generation arm64/sysreg: Convert MVFR2_EL1 to automatic generation arm64/sysreg: Convert MVFR1_EL1 to automatic generation arm64/sysreg: Convert MVFR0_EL1 to automatic generation arm64/sysreg: Convert ID_PFR2_EL1 to automatic generation arm64/sysreg: Convert ID_PFR1_EL1 to automatic generation arm64/sysreg: Convert ID_PFR0_EL1 to automatic generation arm64/sysreg: Convert ID_ISAR6_EL1 to automatic generation arm64/sysreg: Convert ID_ISAR5_EL1 to automatic generation arm64/sysreg: Convert ID_ISAR4_EL1 to automatic generation arm64/sysreg: Convert ID_ISAR3_EL1 to automatic generation arm64/sysreg: Convert ID_ISAR2_EL1 to automatic generation arm64/sysreg: Convert ID_ISAR1_EL1 to automatic generation arm64/sysreg: Convert ID_ISAR0_EL1 to automatic generation arm64/sysreg: Convert ID_MMFR4_EL1 to automatic generation arm64/sysreg: Convert ID_MMFR3_EL1 to automatic generation ... |
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Will Deacon
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75bc81d08f |
Merge branch 'for-next/sve-state' into for-next/core
* for-next/sve-state: arm64/fp: Use a struct to pass data to fpsimd_bind_state_to_cpu() arm64/sve: Leave SVE enabled on syscall if we don't context switch arm64/fpsimd: SME no longer requires SVE register state arm64/fpsimd: Load FP state based on recorded data type arm64/fpsimd: Stop using TIF_SVE to manage register saving in KVM arm64/fpsimd: Have KVM explicitly say which FP registers to save arm64/fpsimd: Track the saved FPSIMD state type separately to TIF_SVE KVM: arm64: Discard any SVE state when entering KVM guests |
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Will Deacon
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595a121e89 |
Merge branch 'for-next/stacks' into for-next/core
* for-next/stacks: arm64: move on_thread_stack() to <asm/stacktrace.h> arm64: remove current_top_of_stack() |
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Will Deacon
|
10162e78ea |
Merge branch 'for-next/perf' into for-next/core
* for-next/perf: (21 commits) arm_pmu: Drop redundant armpmu->map_event() in armpmu_event_init() drivers/perf: hisi: Add TLP filter support Documentation: perf: Indent filter options list of hisi-pcie-pmu docs: perf: Fix PMU instance name of hisi-pcie-pmu drivers/perf: hisi: Fix some event id for hisi-pcie-pmu arm64/perf: Replace PMU version number '0' with ID_AA64DFR0_EL1_PMUVer_NI perf/amlogic: Remove unused header inclusions of <linux/version.h> perf/amlogic: Fix build error for x86_64 allmodconfig dt-binding: perf: Add Amlogic DDR PMU docs/perf: Add documentation for the Amlogic G12 DDR PMU perf/amlogic: Add support for Amlogic meson G12 SoC DDR PMU driver MAINTAINERS: Update HiSilicon PMU maintainers perf: arm_cspmu: Fix module cyclic dependency perf: arm_cspmu: Fix build failure on x86_64 perf: arm_cspmu: Fix modular builds due to missing MODULE_LICENSE()s perf: arm_cspmu: Add support for NVIDIA SCF and MCF attribute perf: arm_cspmu: Add support for ARM CoreSight PMU driver perf/smmuv3: Fix hotplug callback leak in arm_smmu_pmu_init() perf/arm_dmc620: Fix hotplug callback leak in dmc620_pmu_init() drivers: perf: marvell_cn10k: Fix hotplug callback leak in tad_pmu_init() ... |
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Will Deacon
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37f5d61a96 |
Merge branch 'for-next/kprobes' into for-next/core
* for-next/kprobes: arm64: kprobes: Return DBG_HOOK_ERROR if kprobes can not handle a BRK arm64: kprobes: Let arch do_page_fault() fix up page fault in user handler arm64: Prohibit instrumentation on arch_stack_walk() |
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Will Deacon
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586e1ad9af |
Merge branch 'for-next/insn' into for-next/core
* for-next/insn: arm64:uprobe fix the uprobe SWBP_INSN in big-endian arm64: insn: always inline hint generation arm64: insn: simplify insn group identification arm64: insn: always inline predicates arm64: insn: remove aarch64_insn_gen_prefetch() |
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Will Deacon
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a4aebff7ef |
Merge branch 'for-next/ftrace' into for-next/core
* for-next/ftrace: ftrace: arm64: remove static ftrace ftrace: arm64: move from REGS to ARGS ftrace: abstract DYNAMIC_FTRACE_WITH_ARGS accesses ftrace: rename ftrace_instruction_pointer_set() -> ftrace_regs_set_instruction_pointer() ftrace: pass fregs to arch_ftrace_set_direct_caller() |
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Will Deacon
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1a916ed79b |
Merge branch 'for-next/fpsimd' into for-next/core
* for-next/fpsimd: arm64/fpsimd: Make kernel_neon_ API _GPL |
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Will Deacon
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f455fb65b4 |
Merge branch 'for-next/errata' into for-next/core
* for-next/errata: arm64: errata: Workaround possible Cortex-A715 [ESR|FAR]_ELx corruption arm64: Add Cortex-715 CPU part definition |
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Will Deacon
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f6ffa4c8c1 |
Merge branch 'for-next/dynamic-scs' into for-next/core
* for-next/dynamic-scs: arm64: implement dynamic shadow call stack for Clang scs: add support for dynamic shadow call stacks arm64: unwind: add asynchronous unwind tables to kernel and modules |
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Marc Zyngier
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753d734f3f |
Merge remote-tracking branch 'arm64/for-next/sysregs' into kvmarm-master/next
Merge arm64's sysreg repainting branch to avoid too many ugly conflicts... Signed-off-by: Marc Zyngier <maz@kernel.org> |
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Marc Zyngier
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382b5b87a9 |
Merge branch kvm-arm64/mte-map-shared into kvmarm-master/next
* kvm-arm64/mte-map-shared: : . : Update the MTE support to allow the VMM to use shared mappings : to back the memslots exposed to MTE-enabled guests. : : Patches courtesy of Catalin Marinas and Peter Collingbourne. : . : Fix a number of issues with MTE, such as races on the tags : being initialised vs the PG_mte_tagged flag as well as the : lack of support for VM_SHARED when KVM is involved. : : Patches from Catalin Marinas and Peter Collingbourne. : . Documentation: document the ABI changes for KVM_CAP_ARM_MTE KVM: arm64: permit all VM_MTE_ALLOWED mappings with MTE enabled KVM: arm64: unify the tests for VMAs in memslots when MTE is enabled arm64: mte: Lock a page for MTE tag initialisation mm: Add PG_arch_3 page flag KVM: arm64: Simplify the sanitise_mte_tags() logic arm64: mte: Fix/clarify the PG_mte_tagged semantics mm: Do not enable PG_arch_2 for all 64-bit architectures Signed-off-by: Marc Zyngier <maz@kernel.org> |
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Marc Zyngier
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cfa72993d1 |
Merge branch kvm-arm64/pkvm-vcpu-state into kvmarm-master/next
* kvm-arm64/pkvm-vcpu-state: (25 commits) : . : Large drop of pKVM patches from Will Deacon and co, adding : a private vm/vcpu state at EL2, managed independently from : the EL1 state. From the cover letter: : : "This is version six of the pKVM EL2 state series, extending the pKVM : hypervisor code so that it can dynamically instantiate and manage VM : data structures without the host being able to access them directly. : These structures consist of a hyp VM, a set of hyp vCPUs and the stage-2 : page-table for the MMU. The pages used to hold the hypervisor structures : are returned to the host when the VM is destroyed." : . KVM: arm64: Use the pKVM hyp vCPU structure in handle___kvm_vcpu_run() KVM: arm64: Don't unnecessarily map host kernel sections at EL2 KVM: arm64: Explicitly map 'kvm_vgic_global_state' at EL2 KVM: arm64: Maintain a copy of 'kvm_arm_vmid_bits' at EL2 KVM: arm64: Unmap 'kvm_arm_hyp_percpu_base' from the host KVM: arm64: Return guest memory from EL2 via dedicated teardown memcache KVM: arm64: Instantiate guest stage-2 page-tables at EL2 KVM: arm64: Consolidate stage-2 initialisation into a single function KVM: arm64: Add generic hyp_memcache helpers KVM: arm64: Provide I-cache invalidation by virtual address at EL2 KVM: arm64: Initialise hypervisor copies of host symbols unconditionally KVM: arm64: Add per-cpu fixmap infrastructure at EL2 KVM: arm64: Instantiate pKVM hypervisor VM and vCPU structures from EL1 KVM: arm64: Add infrastructure to create and track pKVM instances at EL2 KVM: arm64: Rename 'host_kvm' to 'host_mmu' KVM: arm64: Add hyp_spinlock_t static initializer KVM: arm64: Include asm/kvm_mmu.h in nvhe/mem_protect.h KVM: arm64: Add helpers to pin memory shared with the hypervisor at EL2 KVM: arm64: Prevent the donation of no-map pages KVM: arm64: Implement do_donate() helper for donating memory ... Signed-off-by: Marc Zyngier <maz@kernel.org> |
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Masami Hiramatsu (Google)
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3b84efc066 |
arm64: kprobes: Return DBG_HOOK_ERROR if kprobes can not handle a BRK
Return DBG_HOOK_ERROR if kprobes can not handle a BRK because it fails to find a kprobe corresponding to the address. Since arm64 kprobes uses stop_machine based text patching for removing BRK, it ensures all running kprobe_break_handler() is done at that point. And after removing the BRK, it removes the kprobe from its hash list. Thus, if the kprobe_break_handler() fails to find kprobe from hash list, there is a bug. Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/166994753273.439920.6629626290560350760.stgit@devnote3 Signed-off-by: Will Deacon <will@kernel.org> |
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Masami Hiramatsu (Google)
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30a4215523 |
arm64: kprobes: Let arch do_page_fault() fix up page fault in user handler
Since arm64's do_page_fault() can handle the page fault correctly than kprobe_fault_handler() according to the context, let it handle the page fault instead of simply call fixup_exception() in the kprobe_fault_handler(). Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/166994752269.439920.4801339965959400456.stgit@devnote3 Signed-off-by: Will Deacon <will@kernel.org> |
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Masami Hiramatsu (Google)
|
0fbcd8abf3 |
arm64: Prohibit instrumentation on arch_stack_walk()
Mark arch_stack_walk() as noinstr instead of notrace and inline functions
called from arch_stack_walk() as __always_inline so that user does not
put any instrumentations on it, because this function can be used from
return_address() which is used by lockdep.
Without this, if the kernel built with CONFIG_LOCKDEP=y, just probing
arch_stack_walk() via <tracefs>/kprobe_events will crash the kernel on
arm64.
# echo p arch_stack_walk >> ${TRACEFS}/kprobe_events
# echo 1 > ${TRACEFS}/events/kprobes/enable
kprobes: Failed to recover from reentered kprobes.
kprobes: Dump kprobe:
.symbol_name = arch_stack_walk, .offset = 0, .addr = arch_stack_walk+0x0/0x1c0
------------[ cut here ]------------
kernel BUG at arch/arm64/kernel/probes/kprobes.c:241!
kprobes: Failed to recover from reentered kprobes.
kprobes: Dump kprobe:
.symbol_name = arch_stack_walk, .offset = 0, .addr = arch_stack_walk+0x0/0x1c0
------------[ cut here ]------------
kernel BUG at arch/arm64/kernel/probes/kprobes.c:241!
PREEMPT SMP
Modules linked in:
CPU: 0 PID: 17 Comm: migration/0 Tainted: G N 6.1.0-rc5+ #6
Hardware name: linux,dummy-virt (DT)
Stopper: 0x0 <- 0x0
pstate: 600003c5 (nZCv DAIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kprobe_breakpoint_handler+0x178/0x17c
lr : kprobe_breakpoint_handler+0x178/0x17c
sp : ffff8000080d3090
x29: ffff8000080d3090 x28: ffff0df5845798c0 x27: ffffc4f59057a774
x26: ffff0df5ffbba770 x25: ffff0df58f420f18 x24: ffff49006f641000
x23: ffffc4f590579768 x22: ffff0df58f420f18 x21: ffff8000080d31c0
x20: ffffc4f590579768 x19: ffffc4f590579770 x18: 0000000000000006
x17: 5f6b636174735f68 x16: 637261203d207264 x15: 64612e202c30203d
x14: 2074657366666f2e x13: 30633178302f3078 x12: 302b6b6c61775f6b
x11: 636174735f686372 x10: ffffc4f590dc5bd8 x9 : ffffc4f58eb31958
x8 : 00000000ffffefff x7 : ffffc4f590dc5bd8 x6 : 80000000fffff000
x5 : 000000000000bff4 x4 : 0000000000000000 x3 : 0000000000000000
x2 : 0000000000000000 x1 : ffff0df5845798c0 x0 : 0000000000000064
Call trace:
kprobes: Failed to recover from reentered kprobes.
kprobes: Dump kprobe:
.symbol_name = arch_stack_walk, .offset = 0, .addr = arch_stack_walk+0x0/0x1c0
------------[ cut here ]------------
kernel BUG at arch/arm64/kernel/probes/kprobes.c:241!
Fixes:
|
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Jisheng Zhang
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67bc5b2d6d |
arm64: alternatives: add __init/__initconst to some functions/variables
apply_alternatives_vdso(), __apply_alternatives_multi_stop() and kernel_alternatives are not needed after booting, so mark the two functions as __init and the var as __initconst. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Link: https://lore.kernel.org/r/20221202161859.2228-1-jszhang@kernel.org Signed-off-by: Will Deacon <will@kernel.org> |
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Linus Torvalds
|
355479c70a |
Final EFI fix for v6.1
- Revert runtime service sync exception recovery on arm64 -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEE+9lifEBpyUIVN1cpw08iOZLZjyQFAmOIsLoACgkQw08iOZLZ jyQspgv7BFM/z+PXeKCPee6uGUhNCjUoKP3Pnoo9jwe3sbSVagYUZZ5/vx01Ei33 FHDi4FeSxo+adg2tb8xf8X5tZmfHYiQM5gEqK3xZXaBSJRT7FFY9+eRL6753Qe5W yxn220/nI9xTErGeEAabAHIngIOpth5nGQhRDQbM8r7EZDobGUu0NrJSRVnS7IBF Ov14VMkfqryInnJ8tzHwP4hz40Rrkf54dgNTPyJvUxJ3LCR5TqmeRp+16CZg87By CnmySayLnr+YLbZjp8vmQy9eUGVf4acPoDcXfBTe/lkE1BA4Qi+Hd/TaYgE8Fj0C B5g+sZa3khhaQc4Oc2RMOqpxK80DK41n1Vvy1UOZGOBFgZVoxT2bmDbAPohLyU/4 lw6LqioDR2N4ZxiANGHuOVa8so8iY+Et30fLqRkeXj1TXqC84tDoxXGhsTEjF1Ad Vi0GGmrj4No4l0RM+4yGZIhNMaMGd5OhGdbwAiKUaLS9UyjvfqkaLGJ9S2wYVgZj R1PoDRWX =r/C6 -----END PGP SIGNATURE----- Merge tag 'efi-fixes-for-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi Pull EFI fix from Ard Biesheuvel: "A single revert for some code that I added during this cycle. The code is not wrong, but it should be a bit more careful about how to handle the shadow call stack pointer, so it is better to revert it for now and bring it back later in improved form. Summary: - Revert runtime service sync exception recovery on arm64" * tag 'efi-fixes-for-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: arm64: efi: Revert "Recover from synchronous exceptions ..." |
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James Morse
|
c6e155e8e5 |
arm64/sysreg: Standardise naming for MVFR2_EL1
To convert the 32bit id registers to use the sysreg generation, they must first have a regular pattern, to match the symbols the script generates. Ensure symbols for the MVFR2_EL1 register use lower-case for feature names where the arm-arm does the same. No functional change. Signed-off-by: James Morse <james.morse@arm.com> Link: https://lore.kernel.org/r/20221130171637.718182-16-james.morse@arm.com Signed-off-by: Will Deacon <will@kernel.org> |
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James Morse
|
d3e1aa85b1 |
arm64/sysreg: Standardise naming for MVFR1_EL1
To convert the 32bit id registers to use the sysreg generation, they must first have a regular pattern, to match the symbols the script generates. Ensure symbols for the MVFR1_EL1 register use lower-case for feature names where the arm-arm does the same. No functional change. Signed-off-by: James Morse <james.morse@arm.com> Link: https://lore.kernel.org/r/20221130171637.718182-15-james.morse@arm.com Signed-off-by: Will Deacon <will@kernel.org> |
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James Morse
|
a3aab94801 |
arm64/sysreg: Standardise naming for MVFR0_EL1
To convert the 32bit id registers to use the sysreg generation, they must first have a regular pattern, to match the symbols the script generates. Ensure symbols for the MVFR0_EL1 register use lower-case for feature names where the arm-arm does the same. No functional change. Signed-off-by: James Morse <james.morse@arm.com> Link: https://lore.kernel.org/r/20221130171637.718182-14-james.morse@arm.com Signed-off-by: Will Deacon <will@kernel.org> |
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James Morse
|
d092106d73 |
arm64/sysreg: Standardise naming for ID_DFR1_EL1
To convert the 32bit id registers to use the sysreg generation, they must first have a regular pattern, to match the symbols the script generates. Ensure symbols for the ID_DFR1_EL1 register have an _EL1 suffix. No functional change. Signed-off-by: James Morse <james.morse@arm.com> Link: https://lore.kernel.org/r/20221130171637.718182-13-james.morse@arm.com Signed-off-by: Will Deacon <will@kernel.org> |
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|
James Morse
|
f4f5969e35 |
arm64/sysreg: Standardise naming for ID_DFR0_EL1
To convert the 32bit id registers to use the sysreg generation, they must first have a regular pattern, to match the symbols the script generates. Ensure symbols for the ID_DFR0_EL1 register have an _EL1 suffix, and use lower-case for feature names where the arm-arm does the same. The arm-arm has feature names for some of the ID_DFR0_EL1.PerMon encodings. Use these feature names in preference to the '8_4' indication of the architecture version they were introduced in. No functional change. Signed-off-by: James Morse <james.morse@arm.com> Link: https://lore.kernel.org/r/20221130171637.718182-12-james.morse@arm.com Signed-off-by: Will Deacon <will@kernel.org> |
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James Morse
|
1ecf3dcb13 |
arm64/sysreg: Standardise naming for ID_PFR2_EL1
To convert the 32bit id registers to use the sysreg generation, they must first have a regular pattern, to match the symbols the script generates. Ensure symbols for the ID_PFR2_EL1 register have an _EL1 suffix. No functional change. Signed-off-by: James Morse <james.morse@arm.com> Link: https://lore.kernel.org/r/20221130171637.718182-11-james.morse@arm.com Signed-off-by: Will Deacon <will@kernel.org> |
||
|
James Morse
|
0a648056d6 |
arm64/sysreg: Standardise naming for ID_PFR1_EL1
To convert the 32bit id registers to use the sysreg generation, they must first have a regular pattern, to match the symbols the script generates. Ensure symbols for the ID_PFR1_EL1 register have an _EL1 suffix, and use lower case in feature names where the arm-arm does the same. No functional change. Signed-off-by: James Morse <james.morse@arm.com> Link: https://lore.kernel.org/r/20221130171637.718182-10-james.morse@arm.com Signed-off-by: Will Deacon <will@kernel.org> |
||
|
James Morse
|
e0bf98fef3 |
arm64/sysreg: Standardise naming for ID_PFR0_EL1
To convert the 32bit id registers to use the sysreg generation, they must first have a regular pattern, to match the symbols the script generates. Ensure symbols for the ID_PFR0_EL1 register have an _EL1 suffix, and use lower case in feature names where the arm-arm does the same. No functional change. Signed-off-by: James Morse <james.morse@arm.com> Link: https://lore.kernel.org/r/20221130171637.718182-9-james.morse@arm.com Signed-off-by: Will Deacon <will@kernel.org> |