Ira Weiny [Tue, 19 Apr 2022 17:06:07 +0000 (10:06 -0700)]
x86/pkeys: Clarify PKRU_AD_KEY macro
When changing the PKRU_AD_KEY macro to be used for PKS the name came
into question.[1]
The intent of PKRU_AD_KEY is to set an initial value for the PKRU
register but that is just a mask value.
Clarify this by changing the name to PKRU_AD_MASK().
NOTE the checkpatch errors are ignored for the init_pkru_value to align
the values in the code.
[1] https://lore.kernel.org/lkml/
eff862e2-bfaa-9e12-42b5-
a12467d72a22@intel.com/
Suggested-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lkml.kernel.org/r/20220419170649.1022246-3-ira.weiny@intel.com
Ira Weiny [Tue, 19 Apr 2022 17:06:06 +0000 (10:06 -0700)]
Documentation/protection-keys: Clean up documentation for User Space pkeys
The documentation for user space pkeys was a bit dated including things
such as Amazon and distribution testing information which is irrelevant
now.
Update the documentation. This also streamlines adding the Supervisor
pkey documentation later on.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lkml.kernel.org/r/20220419170649.1022246-2-ira.weiny@intel.com
Nadav Amit [Mon, 6 Jun 2022 18:01:23 +0000 (11:01 -0700)]
x86/mm/tlb: Avoid reading mm_tlb_gen when possible
On extreme TLB shootdown storms, the mm's tlb_gen cacheline is highly
contended and reading it should (arguably) be avoided as much as
possible.
Currently, flush_tlb_func() reads the mm's tlb_gen unconditionally,
even when it is not necessary (e.g., the mm was already switched).
This is wasteful.
Moreover, one of the existing optimizations is to read mm's tlb_gen to
see if there are additional in-flight TLB invalidations and flush the
entire TLB in such a case. However, if the request's tlb_gen was already
flushed, the benefit of checking the mm's tlb_gen is likely to be offset
by the overhead of the check itself.
Running will-it-scale with tlb_flush1_threads show a considerable
benefit on 56-core Skylake (up to +24%):
threads Baseline (v5.17+) +Patch
1 159960 160202
5 310808 308378 (-0.7%)
10 479110 490728
15 526771 562528
20 534495 587316
25 547462 628296
30 579616 666313
35 594134 701814
40 612288 732967
45 617517 749727
50 637476 735497
55 614363 778913 (+24%)
Signed-off-by: Nadav Amit <namit@vmware.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/20220606180123.2485171-1-namit@vmware.com
Fanjun Kong [Thu, 26 May 2022 14:20:39 +0000 (22:20 +0800)]
x86/mm: Use PAGE_ALIGNED(x) instead of IS_ALIGNED(x, PAGE_SIZE)
The <linux/mm.h> already provides the PAGE_ALIGNED() macro. Let's
use this macro instead of IS_ALIGNED() and passing PAGE_SIZE directly.
No change in functionality.
[ mingo: Tweak changelog. ]
Signed-off-by: Fanjun Kong <bh1scw@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20220526142038.1582839-1-bh1scw@gmail.com
Linus Torvalds [Tue, 24 May 2022 18:11:13 +0000 (11:11 -0700)]
Merge tag 'sched-core-2022-05-23' of git://git./linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
- Updates to scheduler metrics:
- PELT fixes & enhancements
- PSI fixes & enhancements
- Refactor cpu_util_without()
- Updates to instrumentation/debugging:
- Remove sched_trace_*() helper functions - can be done via debug
info
- Fix double update_rq_clock() warnings
- Introduce & use "preemption model accessors" to simplify some of the
Kconfig complexity.
- Make softirq handling RT-safe.
- Misc smaller fixes & cleanups.
* tag 'sched-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
topology: Remove unused cpu_cluster_mask()
sched: Reverse sched_class layout
sched/deadline: Remove superfluous rq clock update in push_dl_task()
sched/core: Avoid obvious double update_rq_clock warning
smp: Make softirq handling RT safe in flush_smp_call_function_queue()
smp: Rename flush_smp_call_function_from_idle()
sched: Fix missing prototype warnings
sched/fair: Remove cfs_rq_tg_path()
sched/fair: Remove sched_trace_*() helper functions
sched/fair: Refactor cpu_util_without()
sched/fair: Revise comment about lb decision matrix
sched/psi: report zeroes for CPU full at the system level
sched/fair: Delete useless condition in tg_unthrottle_up()
sched/fair: Fix cfs_rq_clock_pelt() for throttled cfs_rq
sched/fair: Move calculate of avg_load to a better location
mailmap: Update my email address to @redhat.com
MAINTAINERS: Add myself as scheduler topology reviewer
psi: Fix trigger being fired unexpectedly at initial
ftrace: Use preemption model accessors for trace header printout
kcsan: Use preemption model accessors
Linus Torvalds [Tue, 24 May 2022 17:59:38 +0000 (10:59 -0700)]
Merge tag 'perf-core-2022-05-23' of git://git./linux/kernel/git/tip/tip
Pull perf events updates from Ingo Molnar:
"Platform PMU changes:
- x86/intel:
- Add new Intel Alder Lake and Raptor Lake support
- x86/amd:
- AMD Zen4 IBS extensions support
- Add AMD PerfMonV2 support
- Add AMD Fam19h Branch Sampling support
Generic changes:
- signal: Deliver SIGTRAP on perf event asynchronously if blocked
Perf instrumentation can be driven via SIGTRAP, but this causes a
problem when SIGTRAP is blocked by a task & terminate the task.
Allow user-space to request these signals asynchronously (after
they get unblocked) & also give the information to the signal
handler when this happens:
"To give user space the ability to clearly distinguish
synchronous from asynchronous signals, introduce
siginfo_t::si_perf_flags and TRAP_PERF_FLAG_ASYNC (opted for
flags in case more binary information is required in future).
The resolution to the problem is then to (a) no longer force the
signal (avoiding the terminations), but (b) tell user space via
si_perf_flags if the signal was synchronous or not, so that such
signals can be handled differently (e.g. let user space decide
to ignore or consider the data imprecise). "
- Unify/standardize the /sys/devices/cpu/events/* output format.
- Misc fixes & cleanups"
* tag 'perf-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
perf/x86/amd/core: Fix reloading events for SVM
perf/x86/amd: Run AMD BRS code only on supported hw
perf/x86/amd: Fix AMD BRS period adjustment
perf/x86/amd: Remove unused variable 'hwc'
perf/ibs: Fix comment
perf/amd/ibs: Advertise zen4_ibs_extensions as pmu capability attribute
perf/amd/ibs: Add support for L3 miss filtering
perf/amd/ibs: Use ->is_visible callback for dynamic attributes
perf/amd/ibs: Cascade pmu init functions' return value
perf/x86/uncore: Add new Alder Lake and Raptor Lake support
perf/x86/uncore: Clean up uncore_pci_ids[]
perf/x86/cstate: Add new Alder Lake and Raptor Lake support
perf/x86/msr: Add new Alder Lake and Raptor Lake support
perf/x86: Add new Alder Lake and Raptor Lake support
perf/amd/ibs: Use interrupt regs ip for stack unwinding
perf/x86/amd/core: Add PerfMonV2 overflow handling
perf/x86/amd/core: Add PerfMonV2 counter control
perf/x86/amd/core: Detect available counters
perf/x86/amd/core: Detect PerfMonV2 support
x86/msr: Add PerfCntrGlobal* registers
...
Linus Torvalds [Tue, 24 May 2022 17:36:38 +0000 (10:36 -0700)]
Merge tag 'objtool-core-2022-05-23' of git://git./linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
- Comprehensive interface overhaul:
=================================
Objtool's interface has some issues:
- Several features are done unconditionally, without any way to
turn them off. Some of them might be surprising. This makes
objtool tricky to use, and prevents porting individual features
to other arches.
- The config dependencies are too coarse-grained. Objtool
enablement is tied to CONFIG_STACK_VALIDATION, but it has several
other features independent of that.
- The objtool subcmds ("check" and "orc") are clumsy: "check" is
really a subset of "orc", so it has all the same options.
The subcmd model has never really worked for objtool, as it only
has a single purpose: "do some combination of things on an object
file".
- The '--lto' and '--vmlinux' options are nonsensical and have
surprising behavior.
Overhaul the interface:
- get rid of subcmds
- make all features individually selectable
- remove and/or clarify confusing/obsolete options
- update the documentation
- fix some bugs found along the way
- Fix x32 regression
- Fix Kbuild cleanup bugs
- Add scripts/objdump-func helper script to disassemble a single
function from an object file.
- Rewrite scripts/faddr2line to be section-aware, by basing it on
'readelf', moving it away from 'nm', which doesn't handle multiple
sections well, which can result in decoding failure.
- Rewrite & fix symbol handling - which had a number of bugs wrt.
object files that don't have global symbols - which is rare but
possible. Also fix a bunch of symbol handling bugs found along the
way.
* tag 'objtool-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
objtool: Fix objtool regression on x32 systems
objtool: Fix symbol creation
scripts/faddr2line: Fix overlapping text section failures
scripts: Create objdump-func helper script
objtool: Remove libsubcmd.a when make clean
objtool: Remove inat-tables.c when make clean
objtool: Update documentation
objtool: Remove --lto and --vmlinux in favor of --link
objtool: Add HAVE_NOINSTR_VALIDATION
objtool: Rename "VMLINUX_VALIDATION" -> "NOINSTR_VALIDATION"
objtool: Make noinstr hacks optional
objtool: Make jump label hack optional
objtool: Make static call annotation optional
objtool: Make stack validation frame-pointer-specific
objtool: Add CONFIG_OBJTOOL
objtool: Extricate sls from stack validation
objtool: Rework ibt and extricate from stack validation
objtool: Make stack validation optional
objtool: Add option to print section addresses
objtool: Don't print parentheses in function addresses
...
Linus Torvalds [Tue, 24 May 2022 17:18:23 +0000 (10:18 -0700)]
Merge tag 'locking-core-2022-05-23' of git://git./linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
- rwsem cleanups & optimizations/fixes:
- Conditionally wake waiters in reader/writer slowpaths
- Always try to wake waiters in out_nolock path
- Add try_cmpxchg64() implementation, with arch optimizations - and use
it to micro-optimize sched_clock_{local,remote}()
- Various force-inlining fixes to address objdump instrumentation-check
warnings
- Add lock contention tracepoints:
lock:contention_begin
lock:contention_end
- Misc smaller fixes & cleanups
* tag 'locking-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/clock: Use try_cmpxchg64 in sched_clock_{local,remote}
locking/atomic/x86: Introduce arch_try_cmpxchg64
locking/atomic: Add generic try_cmpxchg64 support
futex: Remove a PREEMPT_RT_FULL reference.
locking/qrwlock: Change "queue rwlock" to "queued rwlock"
lockdep: Delete local_irq_enable_in_hardirq()
locking/mutex: Make contention tracepoints more consistent wrt adaptive spinning
locking: Apply contention tracepoints in the slow path
locking: Add lock contention tracepoints
locking/rwsem: Always try to wake waiters in out_nolock path
locking/rwsem: Conditionally wake waiters in reader/writer slowpaths
locking/rwsem: No need to check for handoff bit if wait queue empty
lockdep: Fix -Wunused-parameter for _THIS_IP_
x86/mm: Force-inline __phys_addr_nodebug()
x86/kvm/svm: Force-inline GHCB accessors
task_stack, x86/cea: Force-inline stack helpers
Linus Torvalds [Tue, 24 May 2022 04:06:11 +0000 (21:06 -0700)]
Merge tag 'arm64-upstream' of git://git./linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
- Initial support for the ARMv9 Scalable Matrix Extension (SME).
SME takes the approach used for vectors in SVE and extends this to
provide architectural support for matrix operations. No KVM support
yet, SME is disabled in guests.
- Support for crashkernel reservations above ZONE_DMA via the
'crashkernel=X,high' command line option.
- btrfs search_ioctl() fix for live-lock with sub-page faults.
- arm64 perf updates: support for the Hisilicon "CPA" PMU for
monitoring coherent I/O traffic, support for Arm's CMN-650 and
CMN-700 interconnect PMUs, minor driver fixes, kerneldoc cleanup.
- Kselftest updates for SME, BTI, MTE.
- Automatic generation of the system register macros from a 'sysreg'
file describing the register bitfields.
- Update the type of the function argument holding the ESR_ELx register
value to unsigned long to match the architecture register size
(originally 32-bit but extended since ARMv8.0).
- stacktrace cleanups.
- ftrace cleanups.
- Miscellaneous updates, most notably: arm64-specific huge_ptep_get(),
avoid executable mappings in kexec/hibernate code, drop TLB flushing
from get_clear_flush() (and rename it to get_clear_contig()),
ARCH_NR_GPIO bumped to 2048 for ARCH_APPLE.
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (145 commits)
arm64/sysreg: Generate definitions for FAR_ELx
arm64/sysreg: Generate definitions for DACR32_EL2
arm64/sysreg: Generate definitions for CSSELR_EL1
arm64/sysreg: Generate definitions for CPACR_ELx
arm64/sysreg: Generate definitions for CONTEXTIDR_ELx
arm64/sysreg: Generate definitions for CLIDR_EL1
arm64/sve: Move sve_free() into SVE code section
arm64: Kconfig.platforms: Add comments
arm64: Kconfig: Fix indentation and add comments
arm64: mm: avoid writable executable mappings in kexec/hibernate code
arm64: lds: move special code sections out of kernel exec segment
arm64/hugetlb: Implement arm64 specific huge_ptep_get()
arm64/hugetlb: Use ptep_get() to get the pte value of a huge page
arm64: kdump: Do not allocate crash low memory if not needed
arm64/sve: Generate ZCR definitions
arm64/sme: Generate defintions for SVCR
arm64/sme: Generate SMPRI_EL1 definitions
arm64/sme: Automatically generate SMPRIMAP_EL2 definitions
arm64/sme: Automatically generate SMIDR_EL1 defines
arm64/sme: Automatically generate defines for SMCR
...
Linus Torvalds [Tue, 24 May 2022 04:04:25 +0000 (21:04 -0700)]
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
- amba bus updates
- simplify ldr_this_cpu assembler macro for uniprocessor builds
- avoid explicit assembler literal loads
- more spectre-bhb improvements
- add Cortex-A9 Errata 764319 workaround
- add all unwind tables for modules
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9204/2: module: Add all unwind tables when load module
ARM: 9206/1: A9: Add ARM ERRATA 764319 workaround (Updated)
ARM: 9201/1: spectre-bhb: rely on linker to emit cross-section literal loads
ARM: 9200/1: spectre-bhb: avoid cross-subsection jump using a numbered label
ARM: 9199/1: spectre-bhb: use local DSB and elide ISB in loop8 sequence
ARM: 9198/1: spectre-bhb: simplify BPIALL vector macro
ARM: 9195/1: entry: avoid explicit literal loads
ARM: 9194/1: assembler: simplify ldr_this_cpu for !SMP builds
ARM: 9192/1: amba: fix memory leak in amba_device_try_add()
ARM: 9193/1: amba: Add amba_read_periphid() helper
Linus Torvalds [Tue, 24 May 2022 04:01:30 +0000 (21:01 -0700)]
Merge tag 's390-5.19-1' of git://git./linux/kernel/git/s390/linux
Pull s390 updates from Heiko Carstens:
- Make use of the IBM z16 processor activity instrumentation facility
to count cryptography operations: add a new PMU device driver so that
perf can make use of this.
- Add new IBM z16 extended counter set to cpumf support.
- Add vdso randomization support.
- Add missing KCSAN instrumentation to barriers and spinlocks, which
should make s390's KCSAN support complete.
- Add support for IPL-complete-control facility: notify the hypervisor
that kexec finished work and the kernel starts.
- Improve error logging for PCI.
- Various small changes to workaround llvm's integrated assembler
limitations, and one bug, to make it finally possible to compile the
kernel with llvm's integrated assembler. This also requires to raise
the minimum clang version to 14.0.0.
- Various other small enhancements, bug fixes, and cleanups all over
the place.
* tag 's390-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (48 commits)
s390/head: get rid of 31 bit leftovers
scripts/min-tool-version.sh: raise minimum clang version to 14.0.0 for s390
s390/boot: do not emit debug info for assembly with llvm's IAS
s390/boot: workaround llvm IAS bug
s390/purgatory: workaround llvm's IAS limitations
s390/entry: workaround llvm's IAS limitations
s390/alternatives: remove padding generation code
s390/alternatives: provide identical sized orginal/alternative sequences
s390/cpumf: add new extended counter set for IBM z16
s390/preempt: disable __preempt_count_add() optimization for PROFILE_ALL_BRANCHES
s390/stp: clock_delta should be signed
s390/stp: fix todoff size
s390/pai: add support for cryptography counters
entry: Rename arch_check_user_regs() to arch_enter_from_user_mode()
s390/compat: cleanup compat_linux.h header file
s390/entry: remove broken and not needed code
s390/boot: convert parmarea to C
s390/boot: convert initial lowcore to C
s390/ptrace: move short psw definitions to ptrace header file
s390/head: initialize all new psws
...
Linus Torvalds [Tue, 24 May 2022 03:59:19 +0000 (20:59 -0700)]
Merge tag 'csky-for-linus-5.19-rc1' of https://github.com/c-sky/csky-linux
Pull arch/csky updates from Guo Ren:
- Three atomic optimizations
- memcpy/memcpy_io optimization
- Some coding conventions for Kbuild, removing warnings
* tag 'csky-for-linus-5.19-rc1' of https://github.com/c-sky/csky-linux:
csky: Move $(core-y) into arch/csky/Kbuild
csky: Remove unused core-y for dts
csky: Remove unused $(dtb-y) from boot/Makefile
csky: atomic: Add conditional atomic operations' optimization
csky: atomic: Add custom atomic.h implementation
csky: atomic: Optimize cmpxchg with acquire & release
csky: optimize memcpy_{from,to}io() and memset_io()
csky: Add C based string functions
csky: Fix versioncheck warnings
csky: patch_text: Fixup last cpu should be master
csky: fix typos in comments
Linus Torvalds [Tue, 24 May 2022 03:56:17 +0000 (20:56 -0700)]
Merge tag 'm68k-for-v5.19-tag1' of git://git./linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
- Introduce virtual m68k machine based on Android Goldfish devices
- defconfig updates
- Minor fixes and improvements
* tag 'm68k-for-v5.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: atari: Make Atari ROM port I/O write macros return void
m68k: math-emu: Fix dependencies of math emulation support
m68k: math-emu: Fix typos in comments
m68k: Wire up syscall_trace_enter/leave for m68k
m68k: defconfig: Update defconfigs for v5.18-rc1
m68k: Introduce a virtual m68k machine
clocksource/drivers: Add a goldfish-timer clocksource
rtc: goldfish: Use gf_ioread32()/gf_iowrite32()
tty: goldfish: Introduce gf_ioread32()/gf_iowrite32()
Linus Torvalds [Tue, 24 May 2022 03:54:17 +0000 (20:54 -0700)]
Merge tag 'xtensa-
20220523' of https://github.com/jcmvbkbc/linux-xtensa
Pull xtensa architecture updates from Max Filippov:
- support coprocessors on SMP
- support KCSAN
- support handling protection faults in noMMU configurations
- support using coprocessors in the kernel mode
- support hibernation
- enable context tracking
- enable HAVE_VIRT_CPU_ACCOUNTING_GEN
- support division by 0 exception on cores without HW division option
- clean up locking in the ISS network driver
- clean up kernel entry assemly code
- various minor fixes
* tag 'xtensa-
20220523' of https://github.com/jcmvbkbc/linux-xtensa: (36 commits)
xtensa: Return true/false (not 1/0) from bool function
xtensa: improve call0 ABI probing
xtensa: support artificial division by 0 exception
xtensa: add trap handler for division by zero
xtensa/simdisk: fix proc_read_simdisk()
xtensa: no need to initialise statics to 0
xtensa: clean up labels in the kernel entry assembly
xtensa: don't leave invalid TLB entry in fast_store_prohibited
xtensa: fix declaration of _SecondaryResetVector_text_*
irqchip: irq-xtensa-mx: fix initial IRQ affinity
xtensa: enable ARCH_HAS_DEBUG_VM_PGTABLE
xtensa: add hibernation support
xtensa: support coprocessors on SMP
xtensa: get rid of stack frame in coprocessor_flush
xtensa: merge SAVE_CP_REGS_TAB and LOAD_CP_REGS_TAB
xtensa: add xtensa_xsr macro
xtensa: handle coprocessor exceptions in kernel mode
xtensa: use callx0 opcode in fast_coprocessor
xtensa: clean up excsave1 initialization
xtensa: clean up declarations in coprocessor.h
...
Linus Torvalds [Tue, 24 May 2022 03:49:45 +0000 (20:49 -0700)]
Merge tag 'for-linus-5.19-rc1-tag' of git://git./linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- decouple the PV interface from kernel internals in the Xen
scsifront/scsiback pv drivers
- harden the Xen scsifront PV driver against a malicious backend driver
- simplify Xen PV frontend driver ring page setup
- support Xen setups with multiple domains created at boot time to
tolerate Xenstore coming up late
- two small cleanup patches
* tag 'for-linus-5.19-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (29 commits)
xen: add support for initializing xenstore later as HVM domain
xen: sync xs_wire.h header with upstream xen
x86: xen: remove STACK_FRAME_NON_STANDARD from xen_cpuid
xen-blk{back,front}: Update contact points for buffer_squeeze_duration_ms and feature_persistent
xen/xenbus: eliminate xenbus_grant_ring()
xen/sndfront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/usbfront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/scsifront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/pcifront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/drmfront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/tpmfront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/netfront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/blkfront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/xenbus: add xenbus_setup_ring() service function
xen: update ring.h
xen/shbuf: switch xen-front-pgdir-shbuf to use INVALID_GRANT_REF
xen/dmabuf: switch gntdev-dmabuf to use INVALID_GRANT_REF
xen/sound: switch xen_snd_front to use INVALID_GRANT_REF
xen/drm: switch xen_drm_front to use INVALID_GRANT_REF
xen/usb: switch xen-hcd to use INVALID_GRANT_REF
...
Linus Torvalds [Tue, 24 May 2022 03:38:39 +0000 (20:38 -0700)]
Merge tag 'platform-drivers-x86-v5.19-1' of git://git./linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
"This includes some small changes to kernel/stop_machine.c and arch/x86
which are deps of the new Intel IFS support.
Highlights:
- New drivers:
- Intel "In Field Scan" (IFS) support
- Winmate FM07/FM07P buttons
- Mellanox SN2201 support
- AMD PMC driver enhancements
- Lots of various other small fixes and hardware-id additions"
* tag 'platform-drivers-x86-v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (54 commits)
platform/x86/intel/ifs: Add CPU_SUP_INTEL dependency
platform/x86: intel_cht_int33fe: Set driver data
platform/x86: intel-hid: fix _DSM function index handling
platform/x86: toshiba_acpi: use kobj_to_dev()
platform/x86: samsung-laptop: use kobj_to_dev()
platform/x86: gigabyte-wmi: Add support for Z490 AORUS ELITE AC and X570 AORUS ELITE WIFI
tools/power/x86/intel-speed-select: Fix warning for perf_cap.cpu
tools/power/x86/intel-speed-select: Display error on turbo mode disabled
Documentation: In-Field Scan
platform/x86/intel/ifs: add ABI documentation for IFS
trace: platform/x86/intel/ifs: Add trace point to track Intel IFS operations
platform/x86/intel/ifs: Add IFS sysfs interface
platform/x86/intel/ifs: Add scan test support
platform/x86/intel/ifs: Authenticate and copy to secured memory
platform/x86/intel/ifs: Check IFS Image sanity
platform/x86/intel/ifs: Read IFS firmware image
platform/x86/intel/ifs: Add stub driver for In-Field Scan
stop_machine: Add stop_core_cpuslocked() for per-core operations
x86/msr-index: Define INTEGRITY_CAPABILITIES MSR
x86/microcode/intel: Expose collect_cpu_info_early() for IFS
...
Linus Torvalds [Tue, 24 May 2022 03:34:58 +0000 (20:34 -0700)]
Merge tag 'x86_sgx_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 SGX updates from Dave Hansen:
"A set of patches to prevent crashes in SGX enclaves under heavy memory
pressure:
SGX uses normal RAM allocated from special shmem files as backing
storage when it runs out of SGX memory (EPC). The code was overly
aggressive when freeing shmem pages and was inadvertently freeing
perfectly good data. This resulted in failures in the SGX instructions
used to swap data back into SGX memory.
This turned out to be really hard to trigger in mainline. It was
originally encountered testing the out-of-tree "SGX2" patches, but
later reproduced on mainline.
Fix the data loss by being more careful about truncating pages out of
the backing storage and more judiciously setting pages dirty"
* tag 'x86_sgx_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sgx: Ensure no data in PCMD page after truncate
x86/sgx: Fix race between reclaimer and page fault handler
x86/sgx: Obtain backing storage page with enclave mutex held
x86/sgx: Mark PCMD page as dirty when modifying contents
x86/sgx: Disconnect backing page references from dirty status
Linus Torvalds [Tue, 24 May 2022 02:46:50 +0000 (19:46 -0700)]
Merge tag 'x86_vdso_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 vdso update from Borislav Petkov:
- Get rid of CONFIG_LEGACY_VSYSCALL_EMULATE as nothing should be using
it anymore
* tag 'x86_vdso_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vsyscall: Remove CONFIG_LEGACY_VSYSCALL_EMULATE
Linus Torvalds [Tue, 24 May 2022 02:40:33 +0000 (19:40 -0700)]
Merge tag 'x86_microcode_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 microcode loader update from Borislav Petkov:
- Make CPU vendor dependency explicit against random config build
failures
* tag 'x86_microcode_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode: Add explicit CPU vendor dependency
Linus Torvalds [Tue, 24 May 2022 02:32:59 +0000 (19:32 -0700)]
Merge tag 'x86_misc_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull misc x86 updates from Borislav Petkov:
"A variety of fixes which don't fit any other tip bucket:
- Remove unnecessary function export
- Correct asm constraint
- Fix __setup handlers retval"
* tag 'x86_misc_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Cleanup the control_va_addr_alignment() __setup handler
x86: Fix return value of __setup handlers
x86/delay: Fix the wrong asm constraint in delay_loop()
x86/amd_nb: Unexport amd_cache_northbridges()
Linus Torvalds [Tue, 24 May 2022 02:24:47 +0000 (19:24 -0700)]
Merge tag 'x86_splitlock_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 splitlock updates from Borislav Petkov:
- Add Raptor Lake to the set of CPU models which support splitlock
- Make life miserable for apps using split locks by slowing them down
considerably while the rest of the system remains responsive. The
hope is it will hurt more and people will really fix their misaligned
locks apps. As a result, free a TIF bit.
* tag 'x86_splitlock_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/split_lock: Enable the split lock feature on Raptor Lake
x86/split-lock: Remove unused TIF_SLD bit
x86/split_lock: Make life miserable for split lockers
Linus Torvalds [Tue, 24 May 2022 02:16:09 +0000 (19:16 -0700)]
Merge tag 'x86_apic_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 APIC updates from Borislav Petkov:
- Always do default APIC routing setup so that cpumasks are properly
allocated and are present when later accessed ("nosmp" and x2APIC)
- Clarify the bit overlap between an old APIC and a modern, integrated
one
* tag 'x86_apic_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic: Do apic driver probe for "nosmp" use case
x86/apic: Clarify i82489DX bit overlap in APIC_LVT0
Linus Torvalds [Tue, 24 May 2022 02:14:17 +0000 (19:14 -0700)]
Merge tag 'x86_kdump_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 kdump fixlet from Borislav Petkov:
- A single debug message fix
* tag 'x86_kdump_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/crash: Fix minor typo/bug in debug message
Linus Torvalds [Tue, 24 May 2022 02:11:08 +0000 (19:11 -0700)]
Merge tag 'x86_platform_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 platform updates from Borislav Petkov:
- A couple of changes enabling SGI UV5 support
* tag 'x86_platform_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/platform/uv: Log gap hole end size
x86/platform/uv: Update TSC sync state for UV5
x86/platform/uv: Update NMI Handler for UV5
Linus Torvalds [Tue, 24 May 2022 01:59:24 +0000 (18:59 -0700)]
Merge tag 'x86_mm_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 mm fixlet from Borislav Petkov:
- A sparse address space annotation fix
* tag 'x86_mm_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fault: Cast an argument to the proper address space in prefetch()
Linus Torvalds [Tue, 24 May 2022 01:49:16 +0000 (18:49 -0700)]
Merge tag 'x86_fpu_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 fpu updates from Borislav Petkov:
- Add support for XSAVEC - the Compacted XSTATE saving variant - and
thus allow for guests to use this compacted XSTATE variant when the
hypervisor exports that support
- A variable shadowing cleanup
* tag 'x86_fpu_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fpu: Cleanup variable shadowing
x86/fpu/xsave: Support XSAVEC in the kernel
Linus Torvalds [Tue, 24 May 2022 01:42:07 +0000 (18:42 -0700)]
Merge tag 'x86_core_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull core x86 updates from Borislav Petkov:
- Remove all the code around GS switching on 32-bit now that it is not
needed anymore
- Other misc improvements
* tag 'x86_core_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
bug: Use normal relative pointers in 'struct bug_entry'
x86/nmi: Make register_nmi_handler() more robust
x86/asm: Merge load_gs_index()
x86/32: Remove lazy GS macros
ELF: Remove elf_core_copy_kernel_regs()
x86/32: Simplify ELF_CORE_COPY_REGS
Linus Torvalds [Tue, 24 May 2022 01:17:09 +0000 (18:17 -0700)]
Merge tag 'x86_cleanups_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 cleanups from Borislav Petkov:
- Serious sanitization and cleanup of the whole APERF/MPERF and
frequency invariance code along with removing the need for
unnecessary IPIs
- Finally remove a.out support
- The usual trivial cleanups and fixes all over x86
* tag 'x86_cleanups_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
x86: Remove empty files
x86/speculation: Add missing srbds=off to the mitigations= help text
x86/prctl: Remove pointless task argument
x86/aperfperf: Make it correct on 32bit and UP kernels
x86/aperfmperf: Integrate the fallback code from show_cpuinfo()
x86/aperfmperf: Replace arch_freq_get_on_cpu()
x86/aperfmperf: Replace aperfmperf_get_khz()
x86/aperfmperf: Store aperf/mperf data for cpu frequency reads
x86/aperfmperf: Make parts of the frequency invariance code unconditional
x86/aperfmperf: Restructure arch_scale_freq_tick()
x86/aperfmperf: Put frequency invariance aperf/mperf data into a struct
x86/aperfmperf: Untangle Intel and AMD frequency invariance init
x86/aperfmperf: Separate AP/BP frequency invariance init
x86/smp: Move APERF/MPERF code where it belongs
x86/aperfmperf: Dont wake idle CPUs in arch_freq_get_on_cpu()
x86/process: Fix kernel-doc warning due to a changed function name
x86: Remove a.out support
x86/mm: Replace nodes_weight() with nodes_empty() where appropriate
x86: Replace cpumask_weight() with cpumask_empty() where appropriate
x86/pkeys: Remove __arch_set_user_pkey_access() declaration
...
Linus Torvalds [Tue, 24 May 2022 01:15:44 +0000 (18:15 -0700)]
Merge tag 'x86_build_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 build updates from Borislav Petkov:
- Add a "make x86_debug.config" target which enables a bunch of useful
config debug options when trying to debug an issue
- A gcc-12 build warnings fix
* tag 'x86_build_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Wrap literal addresses in absolute_pointer()
x86/configs: Add x86 debugging Kconfig fragment plus docs
Linus Torvalds [Tue, 24 May 2022 01:08:46 +0000 (18:08 -0700)]
Merge tag 'x86_asm_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 asm updates from Borislav Petkov:
- A bunch of changes towards streamlining low level asm helpers'
calling conventions so that former can be converted to C eventually
- Simplify PUSH_AND_CLEAR_REGS so that it can be used at the system
call entry paths instead of having opencoded, slightly different
variants of it everywhere
- Misc other fixes
* tag 'x86_asm_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/entry: Fix register corruption in compat syscall
objtool: Fix STACK_FRAME_NON_STANDARD reloc type
linkage: Fix issue with missing symbol size
x86/entry: Remove skip_r11rcx
x86/entry: Use PUSH_AND_CLEAR_REGS for compat
x86/entry: Simplify entry_INT80_compat()
x86/mm: Simplify RESERVE_BRK()
x86/entry: Convert SWAPGS to swapgs and remove the definition of SWAPGS
x86/entry: Don't call error_entry() for XENPV
x86/entry: Move CLD to the start of the idtentry macro
x86/entry: Move PUSH_AND_CLEAR_REGS out of error_entry()
x86/entry: Switch the stack after error_entry() returns
x86/traps: Use pt_regs directly in fixup_bad_iret()
Linus Torvalds [Tue, 24 May 2022 01:01:31 +0000 (18:01 -0700)]
Merge tag 'x86_cpu_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 CPU feature updates from Borislav Petkov:
- Remove a bunch of chicken bit options to turn off CPU features which
are not really needed anymore
- Misc fixes and cleanups
* tag 'x86_cpu_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation: Add missing prototype for unpriv_ebpf_notify()
x86/pm: Fix false positive kmemleak report in msr_build_context()
x86/speculation/srbds: Do not try to turn mitigation off when not supported
x86/cpu: Remove "noclflush"
x86/cpu: Remove "noexec"
x86/cpu: Remove "nosmep"
x86/cpu: Remove CONFIG_X86_SMAP and "nosmap"
x86/cpu: Remove "nosep"
x86/cpu: Allow feature bit names from /proc/cpuinfo in clearcpuid=
Linus Torvalds [Tue, 24 May 2022 00:51:12 +0000 (17:51 -0700)]
Merge tag 'x86_tdx_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull Intel TDX support from Borislav Petkov:
"Intel Trust Domain Extensions (TDX) support.
This is the Intel version of a confidential computing solution called
Trust Domain Extensions (TDX). This series adds support to run the
kernel as part of a TDX guest. It provides similar guest protections
to AMD's SEV-SNP like guest memory and register state encryption,
memory integrity protection and a lot more.
Design-wise, it differs from AMD's solution considerably: it uses a
software module which runs in a special CPU mode called (Secure
Arbitration Mode) SEAM. As the name suggests, this module serves as
sort of an arbiter which the confidential guest calls for services it
needs during its lifetime.
Just like AMD's SNP set, this series reworks and streamlines certain
parts of x86 arch code so that this feature can be properly
accomodated"
* tag 'x86_tdx_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
x86/tdx: Fix RETs in TDX asm
x86/tdx: Annotate a noreturn function
x86/mm: Fix spacing within memory encryption features message
x86/kaslr: Fix build warning in KASLR code in boot stub
Documentation/x86: Document TDX kernel architecture
ACPICA: Avoid cache flush inside virtual machines
x86/tdx/ioapic: Add shared bit for IOAPIC base address
x86/mm: Make DMA memory shared for TD guest
x86/mm/cpa: Add support for TDX shared memory
x86/tdx: Make pages shared in ioremap()
x86/topology: Disable CPU online/offline control for TDX guests
x86/boot: Avoid #VE during boot for TDX platforms
x86/boot: Set CR0.NE early and keep it set during the boot
x86/acpi/x86/boot: Add multiprocessor wake-up support
x86/boot: Add a trampoline for booting APs via firmware handoff
x86/tdx: Wire up KVM hypercalls
x86/tdx: Port I/O: Add early boot support
x86/tdx: Port I/O: Add runtime hypercalls
x86/boot: Port I/O: Add decompression-time support for TDX
x86/boot: Port I/O: Allow to hook up alternative helpers
...
Linus Torvalds [Tue, 24 May 2022 00:47:19 +0000 (17:47 -0700)]
Merge tag 'ras_core_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 RAS updates from Borislav Petkov:
- Simplification of the AMD MCE error severity grading logic along with
supplying critical panic MCEs with accompanying error messages for
more human-friendly diagnostics.
- Misc fixes
* tag 'ras_core_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Add messages for panic errors in AMD's MCE grading
x86/mce: Simplify AMD severity grading logic
x86/MCE/AMD: Fix memory leak when threshold_create_bank() fails
x86/mce: Avoid unnecessary padding in struct mce_bank
Linus Torvalds [Tue, 24 May 2022 00:38:01 +0000 (17:38 -0700)]
Merge tag 'x86_sev_for_v5.19_rc1' of git://git./linux/kernel/git/tip/tip
Pull AMD SEV-SNP support from Borislav Petkov:
"The third AMD confidential computing feature called Secure Nested
Paging.
Add to confidential guests the necessary memory integrity protection
against malicious hypervisor-based attacks like data replay, memory
remapping and others, thus achieving a stronger isolation from the
hypervisor.
At the core of the functionality is a new structure called a reverse
map table (RMP) with which the guest has a say in which pages get
assigned to it and gets notified when a page which it owns, gets
accessed/modified under the covers so that the guest can take an
appropriate action.
In addition, add support for the whole machinery needed to launch a
SNP guest, details of which is properly explained in each patch.
And last but not least, the series refactors and improves parts of the
previous SEV support so that the new code is accomodated properly and
not just bolted on"
* tag 'x86_sev_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits)
x86/entry: Fixup objtool/ibt validation
x86/sev: Mark the code returning to user space as syscall gap
x86/sev: Annotate stack change in the #VC handler
x86/sev: Remove duplicated assignment to variable info
x86/sev: Fix address space sparse warning
x86/sev: Get the AP jump table address from secrets page
x86/sev: Add missing __init annotations to SEV init routines
virt: sevguest: Rename the sevguest dir and files to sev-guest
virt: sevguest: Change driver name to reflect generic SEV support
x86/boot: Put globals that are accessed early into the .data section
x86/boot: Add an efi.h header for the decompressor
virt: sevguest: Fix bool function returning negative value
virt: sevguest: Fix return value check in alloc_shared_pages()
x86/sev-es: Replace open-coded hlt-loop with sev_es_terminate()
virt: sevguest: Add documentation for SEV-SNP CPUID Enforcement
virt: sevguest: Add support to get extended report
virt: sevguest: Add support to derive key
virt: Add SEV-SNP guest driver
x86/sev: Register SEV-SNP guest request platform device
x86/sev: Provide support for SNP guest request NAEs
...
Linus Torvalds [Tue, 24 May 2022 00:34:20 +0000 (17:34 -0700)]
Merge tag 'edac_updates_for_v5.19_rc1' of git://git./linux/kernel/git/ras/ras
Pull EDAC updates from Borislav Petkov:
- Switch ghes_edac to use the CPER error reporting routines and
simplify the code considerably this way
- Rip out the silly edac_align_ptr() contraption which was computing
the size of the private structures of each driver and thus allowing
for a one-shot memory allocation. This was clearly unnecessary and
confusing so switch to simple and boring kmalloc* calls.
- Last but not least, the usual garden variety of fixes, cleanups and
improvements all over EDAC land
* tag 'edac_updates_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/xgene: Fix typo processsors -> processors
EDAC/i5100: Remove unused inline function i5100_nrecmema_dm_buf_id()
EDAC: Use kcalloc()
EDAC/ghes: Change ghes_hw from global to static
EDAC/armada_xp: Use devm_platform_ioremap_resource()
EDAC/synopsys: Add a SPDX identifier
EDAC/synopsys: Add driver support for i.MX platforms
EDAC/dmc520: Don't print an error for each unconfigured interrupt line
EDAC/mc: Get rid of edac_align_ptr()
EDAC/device: Sanitize edac_device_alloc_ctl_info() definition
EDAC/device: Get rid of the silly one-shot memory allocation in edac_device_alloc_ctl_info()
EDAC/pci: Get rid of the silly one-shot memory allocation in edac_pci_alloc_ctl_info()
EDAC/mc: Get rid of silly one-shot struct allocation in edac_mc_alloc()
efi/cper: Reformat CPER memory error location to more readable
EDAC/ghes: Unify CPER memory error location reporting
efi/cper: Add a cper_mem_err_status_str() to decode error description
powerpc/85xx: Remove fsl,85... bindings
Linus Torvalds [Tue, 24 May 2022 00:18:25 +0000 (17:18 -0700)]
Merge tag 'x86-irq-2022-05-23' of git://git./linux/kernel/git/tip/tip
Pull x86 PCI irq routing updates from Thomas Gleixner:
- Cleanup and robustify the PCI interrupt routing table handling
including proper range checks
- Add support for Intel 82378ZB/82379AB, SiS85C497 PIRQ routers
- Fix the ALi M1487 router handling
- Handle the IRT routing table format in AMI BIOSes correctly
* tag 'x86-irq-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/PCI: Fix coding style in PIRQ table verification
x86/PCI: Fix ALi M1487 (IBC) PIRQ router link value interpretation
x86/PCI: Add $IRT PIRQ routing table support
x86/PCI: Handle PIRQ routing tables with no router device given
x86/PCI: Add PIRQ routing table range checks
x86/PCI: Add support for the SiS85C497 PIRQ router
x86/PCI: Disambiguate SiS85C503 PIRQ router code entities
x86/PCI: Handle IRQ swizzling with PIRQ routers
x86/PCI: Also match function number in $PIR table
x86/PCI: Include function number in $PIR table dump
x86/PCI: Show the physical address of the $PIR table
Linus Torvalds [Tue, 24 May 2022 00:05:55 +0000 (17:05 -0700)]
Merge tag 'timers-core-2022-05-23' of git://git./linux/kernel/git/tip/tip
Pull timer and timekeeping updates from Thomas Gleixner:
- Expose CLOCK_TAI to instrumentation to aid with TSN debugging.
- Ensure that the clockevent is stopped when there is no timer armed to
avoid pointless wakeups.
- Make the sched clock frequency handling and rounding consistent.
- Provide a better debugobject hint for delayed works. The timer
callback is always the same, which makes it difficult to identify the
underlying work. Use the work function as a hint instead.
- Move the timer specific sysctl code into the timer subsystem.
- The usual set of improvements and cleanups
* tag 'timers-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timers: Provide a better debugobjects hint for delayed works
time/sched_clock: Fix formatting of frequency reporting code
time/sched_clock: Use Hz as the unit for clock rate reporting below 4kHz
time/sched_clock: Round the frequency reported to nearest rather than down
timekeeping: Consolidate fast timekeeper
timekeeping: Annotate ktime_get_boot_fast_ns() with data_race()
timers/nohz: Switch to ONESHOT_STOPPED in the low-res handler when the tick is stopped
timekeeping: Introduce fast accessor to clock tai
tracing/timer: Add missing argument documentation of trace points
clocksource: Replace cpumask_weight() with cpumask_empty()
timers: Move timer sysctl into the timer code
clockevents: Use dedicated list iterator variable
timers: Simplify calc_index()
timers: Initialize base::next_expiry_recalc in timers_prepare_cpu()
Linus Torvalds [Mon, 23 May 2022 23:58:49 +0000 (16:58 -0700)]
Merge tag 'irq-core-2022-05-23' of git://git./linux/kernel/git/tip/tip
Pull interrupt handling updates from Thomas Gleixner:
"Core code:
- Make the managed interrupts more robust by shutting them down in
the core code when the assigned affinity mask does not contain
online CPUs.
- Make the irq simulator chip work on RT
- A small set of cpumask and power manageent cleanups
Drivers:
- A set of changes which mark GPIO interrupt chips immutable to
prevent the GPIO subsystem from modifying it under the hood. This
provides the necessary infrastructure and converts a set of GPIO
and pinctrl drivers over.
- A set of changes to make the pseudo-NMI handling for GICv3 more
robust: a missing barrier and consistent handling of the priority
mask.
- Another set of GICv3 improvements and fixes, but nothing
outstanding
- The usual set of improvements and cleanups all over the place
- No new irqchip drivers and not even a new device tree binding!
100+ interrupt chips are truly enough"
* tag 'irq-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits)
irqchip: Add Kconfig symbols for sunxi drivers
irqchip/gic-v3: Fix priority mask handling
irqchip/gic-v3: Refactor ISB + EOIR at ack time
irqchip/gic-v3: Ensure pseudo-NMIs have an ISB between ack and handling
genirq/irq_sim: Make the irq_work always run in hard irq context
irqchip/armada-370-xp: Do not touch Performance Counter Overflow on A375, A38x, A39x
irqchip/gic: Improved warning about incorrect type
irqchip/csky: Return true/false (not 1/0) from bool functions
irqchip/imx-irqsteer: Add runtime PM support
irqchip/imx-irqsteer: Constify irq_chip struct
irqchip/armada-370-xp: Enable MSI affinity configuration
irqchip/aspeed-scu-ic: Fix irq_of_parse_and_map() return value
irqchip/aspeed-i2c-ic: Fix irq_of_parse_and_map() return value
irqchip/sun6i-r: Use NULL for chip_data
irqchip/xtensa-mx: Fix initial IRQ affinity in non-SMP setup
irqchip/exiu: Fix acknowledgment of edge triggered interrupts
irqchip/gic-v3: Claim iomem resources
dt-bindings: interrupt-controller: arm,gic-v3: Make the v2 compat requirements explicit
irqchip/gic-v3: Relax polling of GIC{R,D}_CTLR.RWP
irqchip/gic-v3: Detect LPI invalidation MMIO registers
...
Linus Torvalds [Mon, 23 May 2022 23:55:36 +0000 (16:55 -0700)]
Merge tag 'smp-core-2022-05-23' of git://git./linux/kernel/git/tip/tip
Pull CPU hotplug updates from Thomas Gleixner:
- Initialize the per-CPU structures during early boot so that the state
is consistent from the very beginning.
- Make the virtualization hotplug state handling more robust and let
the core bringup CPUs which timed out in an earlier attempt again.
- Make the x86/xen CPU state tracking consistent on a failed online
attempt, so a consecutive bringup does not fall over the inconsistent
state.
* tag 'smp-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Initialise all cpuhp_cpu_state structs earlier
cpu/hotplug: Allow the CPU in CPU_UP_PREPARE state to be brought up again.
x86/xen: Allow to retry if cpu_initialize_context() failed.
Linus Torvalds [Mon, 23 May 2022 23:40:12 +0000 (16:40 -0700)]
Merge tag 'core-debugobjects-2022-05-23' of git://git./linux/kernel/git/tip/tip
Pull debugobjects fixlet from Thomas Gleixner:
"Trivial licensing cleanup in debugobjects"
* tag 'core-debugobjects-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
debugobjects: Convert to SPDX license identifier
Linus Torvalds [Mon, 23 May 2022 23:37:35 +0000 (16:37 -0700)]
Merge tag 'core-core-2022-05-23' of git://git./linux/kernel/git/tip/tip
Pull irqpoll update from Thomas Gleixner:
"A single update for irqpoll:
Ensure that a raised soft interrupt is handled after pulling the
blk_cpu_iopoll backlog from a unplugged CPU. This prevents that the
CPU which runs that code reaches idle with soft interrupts pending"
* tag 'core-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lib/irq_poll: Prevent softirq pending leak in irq_poll_cpu_dead()
Linus Torvalds [Mon, 23 May 2022 21:36:45 +0000 (14:36 -0700)]
Merge tag 'zonefs-5.19-rc1' of git://git./linux/kernel/git/dlemoal/zonefs
Pull zonefs updates from Damien Le Moal:
"This improves zonefs open sequential file accounting and adds
accounting for active sequential files to allow the user to handle the
maximum number of active zones of an NVMe ZNS drive.
sysfs attributes for both open and active sequential files are also
added to facilitate access to this information from applications
without resorting to inspecting the block device limits"
* tag 'zonefs-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
documentation: zonefs: Document sysfs attributes
documentation: zonefs: Cleanup the mount options section
zonefs: Add active seq file accounting
zonefs: Export open zone resource information through sysfs
zonefs: Always do seq file write open accounting
zonefs: Rename super block information fields
zonefs: Fix management of open zones
zonefs: Clear inode information flags on inode creation
Linus Torvalds [Mon, 23 May 2022 21:14:50 +0000 (14:14 -0700)]
Merge tag 'ata-5.19-rc1' of git://git./linux/kernel/git/dlemoal/libata
Pull ata updates from Damien Le Moal:
"For this cycle, the libata.force kernel parameter changes stand out.
Beside that, some small cleanups in various drivers. In more detail:
- Changes to the pata_mpc52xx driver in preparation for powerpc's
asm/prom.h cleanup, from Christophe.
- Improved ATA command allocation, from John.
- Various small cleanups to the pata_via, pata_sil680, pata_ftide010,
sata_gemini, ahci_brcm drivers and to libata-core, from Sergey,
Diego, Ruyi, Mighao and Jiabing.
- Add support for the RZ/G2H SoC to the rcar-sata driver, from Lad.
- AHCI RAID ID cleanup, from Dan.
- Improvement to the libata.force kernel parameter to allow most
horkage flags to be manually forced for debugging drive issues in
the field without needing recompiling a kernel, from me"
* tag 'ata-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: pata_ftide010: Remove unneeded ERROR check before clk_disable_unprepare
doc: admin-guide: Update libata kernel parameters
ata: libata-core: Allow forcing most horkage flags
ata: libata-core: Improve link flags forced settings
ata: libata-core: Refactor force_tbl definition
ata: libata-core: cleanup ata_device_blacklist
ata: simplify the return expression of brcm_ahci_remove
ata: Make use of the helper function devm_platform_ioremap_resource()
ata: libata-core: replace "its" with "it is"
ahci: Add a generic 'controller2' RAID id
dt-bindings: ata: renesas,rcar-sata: Add r8a774e1 support
ata: pata_via: fix sloppy typing in via_do_set_mode()
ata: pata_sil680: fix result type of sil680_sel{dev|reg}()
ata: libata-core: fix parameter type in ata_xfer_mode2shift()
libata: Improve ATA queued command allocation
ata: pata_mpc52xx: Prepare cleanup of powerpc's asm/prom.h
Linus Torvalds [Mon, 23 May 2022 21:04:14 +0000 (14:04 -0700)]
Merge tag 'for-5.19/drivers-2022-05-22' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe:
"Here are the driver updates queued up for 5.19. This contains:
- NVMe pull requests via Christoph:
- tighten the PCI presence check (Stefan Roese)
- fix a potential NULL pointer dereference in an error path (Kyle
Miller Smith)
- fix interpretation of the DMRSL field (Tom Yan)
- relax the data transfer alignment (Keith Busch)
- verbose error logging improvements (Max Gurtovoy, Chaitanya
Kulkarni)
- misc cleanups (Chaitanya Kulkarni, Christoph)
- set non-mdts limits in nvme_scan_work (Chaitanya Kulkarni)
- add support for TP4084 - Time-to-Ready Enhancements (Christoph)
- MD pull request via Song:
- Improve annotation in raid5 code, by Logan Gunthorpe
- Support MD_BROKEN flag in raid-1/5/10, by Mariusz Tkaczyk
- Other small fixes/cleanups
- null_blk series making the configfs side much saner (Damien)
- Various minor drbd cleanups and fixes (Haowen, Uladzislau, Jiapeng,
Arnd, Cai)
- Avoid using the system workqueue (and hence flushing it) in rnbd
(Jack)
- Avoid using the system workqueue (and hence flushing it) in aoe
(Tetsuo)
- Series fixing discard_alignment issues in drivers (Christoph)
- Small series fixing drivers poking at disk->part0 for openers
information (Christoph)
- Series fixing deadlocks in loop (Christoph, Tetsuo)
- Remove loop.h and add SPDX headers (Christoph)
- Various fixes and cleanups (Julia, Xie, Yu)"
* tag 'for-5.19/drivers-2022-05-22' of git://git.kernel.dk/linux-block: (72 commits)
mtip32xx: fix typo in comment
nvme: set non-mdts limits in nvme_scan_work
nvme: add support for TP4084 - Time-to-Ready Enhancements
nvme: split the enum used for various register constants
nbd: Fix hung on disconnect request if socket is closed before
nvme-fabrics: add a request timeout helper
nvme-pci: harden drive presence detect in nvme_dev_disable()
nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags
nvme: mark internal passthru request RQF_QUIET
nvme: remove unneeded include from constants file
nvme: add missing status values to verbose logging
nvme: set dma alignment to dword
nvme: fix interpretation of DMRSL
loop: remove most the top-of-file boilerplate comment from the UAPI header
loop: remove most the top-of-file boilerplate comment
loop: add a SPDX header
loop: remove loop.h
block: null_blk: Improve device creation with configfs
block: null_blk: Cleanup messages
block: null_blk: Cleanup device creation and deletion
...
Linus Torvalds [Mon, 23 May 2022 20:56:39 +0000 (13:56 -0700)]
Merge tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"Here are the core block changes for 5.19. This contains:
- blk-throttle accounting fix (Laibin)
- Series removing redundant assignments (Michal)
- Expose bio cache via the bio_set, so that DM can use it (Mike)
- Finish off the bio allocation interface cleanups by dealing with
the weirdest member of the family. bio_kmalloc combines a kmalloc
for the bio and bio_vecs with a hidden bio_init call and magic
cleanup semantics (Christoph)
- Clean up the block layer API so that APIs consumed by file systems
are (almost) only struct block_device based, so that file systems
don't have to poke into block layer internals like the
request_queue (Christoph)
- Clean up the blk_execute_rq* API (Christoph)
- Clean up various lose end in the blk-cgroup code to make it easier
to follow in preparation of reworking the blkcg assignment for bios
(Christoph)
- Fix use-after-free issues in BFQ when processes with merged queues
get moved to different cgroups (Jan)
- BFQ fixes (Jan)
- Various fixes and cleanups (Bart, Chengming, Fanjun, Julia, Ming,
Wolfgang, me)"
* tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block: (83 commits)
blk-mq: fix typo in comment
bfq: Remove bfq_requeue_request_body()
bfq: Remove superfluous conversion from RQ_BIC()
bfq: Allow current waker to defend against a tentative one
bfq: Relax waker detection for shared queues
blk-cgroup: delete rcu_read_lock_held() WARN_ON_ONCE()
blk-throttle: Set BIO_THROTTLED when bio has been throttled
blk-cgroup: Remove unnecessary rcu_read_lock/unlock()
blk-cgroup: always terminate io.stat lines
block, bfq: make bfq_has_work() more accurate
block, bfq: protect 'bfqd->queued' by 'bfqd->lock'
block: cleanup the VM accounting in submit_bio
block: Fix the bio.bi_opf comment
block: reorder the REQ_ flags
blk-iocost: combine local_stat and desc_stat to stat
block: improve the error message from bio_check_eod
block: allow passing a NULL bdev to bio_alloc_clone/bio_init_clone
block: remove superfluous calls to blkcg_bio_issue_init
kthread: unexport kthread_blkcg
blk-cgroup: cleanup blkcg_maybe_throttle_current
...
Linus Torvalds [Mon, 23 May 2022 20:52:14 +0000 (13:52 -0700)]
Merge tag 'for-5.19/cdrom-2022-05-22' of git://git.kernel.dk/linux-block
Pull cdrom updates from Jens Axboe:
"Removal of unused code and documentation updates"
* tag 'for-5.19/cdrom-2022-05-22' of git://git.kernel.dk/linux-block:
cdrom: remove obsolete TODO list
block: remove last remaining traces of IDE documentation
cdrom: mark CDROMGETSPINDOWN/CDROMSETSPINDOWN obsolete
cdrom: remove the unused driver specific disc change ioctl
cdrom: make EXPORT_SYMBOL follow exported function
Linus Torvalds [Mon, 23 May 2022 20:48:23 +0000 (13:48 -0700)]
Merge tag 'for-5.19/writeback-2022-05-22' of git://git.kernel.dk/linux-block
Pull writeback fix from Jens Axboe:
"A single writeback fix that didn't belong in any other branch,
correcting the number of skipped pages"
* tag 'for-5.19/writeback-2022-05-22' of git://git.kernel.dk/linux-block:
fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages
Linus Torvalds [Mon, 23 May 2022 20:06:15 +0000 (13:06 -0700)]
Merge tag 'for-5.19/io_uring-passthrough-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring NVMe command passthrough from Jens Axboe:
"On top of everything else, this adds support for passthrough for
io_uring.
The initial feature for this is NVMe passthrough support, which allows
non-filesystem based IO commands and admin commands.
To support this, io_uring grows support for SQE and CQE members that
are twice as big, allowing to pass in a full NVMe command without
having to copy data around. And to complete with more than just a
single 32-bit value as the output"
* tag 'for-5.19/io_uring-passthrough-2022-05-22' of git://git.kernel.dk/linux-block: (22 commits)
io_uring: cleanup handling of the two task_work lists
nvme: enable uring-passthrough for admin commands
nvme: helper for uring-passthrough checks
blk-mq: fix passthrough plugging
nvme: add vectored-io support for uring-cmd
nvme: wire-up uring-cmd support for io-passthru on char-device.
nvme: refactor nvme_submit_user_cmd()
block: wire-up support for passthrough plugging
fs,io_uring: add infrastructure for uring-cmd
io_uring: support CQE32 for nop operation
io_uring: enable CQE32
io_uring: support CQE32 in /proc info
io_uring: add tracing for additional CQE32 fields
io_uring: overflow processing for CQE32
io_uring: flush completions for CQE32
io_uring: modify io_get_cqe for CQE32
io_uring: add CQE32 completion processing
io_uring: add CQE32 setup processing
io_uring: change ring size calculation for CQE32
io_uring: store add. return values for CQE32
...
Linus Torvalds [Mon, 23 May 2022 19:51:04 +0000 (12:51 -0700)]
Merge tag 'for-5.19/io_uring-net-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring 'more data in socket' support from Jens Axboe:
"To be able to fully utilize the 'poll first' support in the core
io_uring branch, it's advantageous knowing if the socket was empty
after a receive. This adds support for that"
* tag 'for-5.19/io_uring-net-2022-05-22' of git://git.kernel.dk/linux-block:
io_uring: return hint on whether more data is available after receive
tcp: pass back data left in socket after receive
Linus Torvalds [Mon, 23 May 2022 19:42:33 +0000 (12:42 -0700)]
Merge tag 'for-5.19/io_uring-socket-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring socket() support from Jens Axboe:
"This adds support for socket(2) for io_uring. This is handy when using
direct / registered file descriptors with io_uring.
Outside of those two patches, a small series from Dylan on top that
improves the tracing by providing a text representation of the opcode
rather than needing to decode this by reading the header file every
time.
That sits in this branch as it was the last opcode added (until it
wasn't...)"
* tag 'for-5.19/io_uring-socket-2022-05-22' of git://git.kernel.dk/linux-block:
io_uring: use the text representation of ops in trace
io_uring: rename op -> opcode
io_uring: add io_uring_get_opcode
io_uring: add type to op enum
io_uring: add socket(2) support
net: add __sys_socket_file()
Linus Torvalds [Mon, 23 May 2022 19:30:30 +0000 (12:30 -0700)]
Merge tag 'for-5.19/io_uring-xattr-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring xattr support from Jens Axboe:
"Support for the xattr variants"
* tag 'for-5.19/io_uring-xattr-2022-05-22' of git://git.kernel.dk/linux-block:
io_uring: cleanup error-handling around io_req_complete
io_uring: fix trace for reduced sqe padding
io_uring: add fgetxattr and getxattr support
io_uring: add fsetxattr and setxattr support
fs: split off do_getxattr from getxattr
fs: split off setxattr_copy and do_setxattr function from setxattr
Linus Torvalds [Mon, 23 May 2022 19:22:49 +0000 (12:22 -0700)]
Merge tag 'for-5.19/io_uring-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring updates from Jens Axboe:
"Here are the main io_uring changes for 5.19. This contains:
- Fixes for sparse type warnings (Christoph, Vasily)
- Support for multi-shot accept (Hao)
- Support for io_uring managed fixed files, rather than always
needing the applicationt o manage the indices (me)
- Fix for a spurious poll wakeup (Dylan)
- CQE overflow fixes (Dylan)
- Support more types of cancelations (me)
- Support for co-operative task_work signaling, rather than always
forcing an IPI (me)
- Support for doing poll first when appropriate, rather than always
attempting a transfer first (me)
- Provided buffer cleanups and support for mapped buffers (me)
- Improve how io_uring handles inflight SCM files (Pavel)
- Speedups for registered files (Pavel, me)
- Organize the completion data in a struct in io_kiocb rather than
keep it in separate spots (Pavel)
- task_work improvements (Pavel)
- Cleanup and optimize the submission path, in general and for
handling links (Pavel)
- Speedups for registered resource handling (Pavel)
- Support sparse buffers and file maps (Pavel, me)
- Various fixes and cleanups (Almog, Pavel, me)"
* tag 'for-5.19/io_uring-2022-05-22' of git://git.kernel.dk/linux-block: (111 commits)
io_uring: fix incorrect __kernel_rwf_t cast
io_uring: disallow mixed provided buffer group registrations
io_uring: initialize io_buffer_list head when shared ring is unregistered
io_uring: add fully sparse buffer registration
io_uring: use rcu_dereference in io_close
io_uring: consistently use the EPOLL* defines
io_uring: make apoll_events a __poll_t
io_uring: drop a spurious inline on a forward declaration
io_uring: don't use ERR_PTR for user pointers
io_uring: use a rwf_t for io_rw.flags
io_uring: add support for ring mapped supplied buffers
io_uring: add io_pin_pages() helper
io_uring: add buffer selection support to IORING_OP_NOP
io_uring: fix locking state for empty buffer group
io_uring: implement multishot mode for accept
io_uring: let fast poll support multishot
io_uring: add REQ_F_APOLL_MULTISHOT for requests
io_uring: add IORING_ACCEPT_MULTISHOT for accept
io_uring: only wake when the correct events are set
io_uring: avoid io-wq -EAGAIN looping for !IOPOLL
...
Linus Torvalds [Mon, 23 May 2022 18:46:51 +0000 (11:46 -0700)]
Merge tag 'rcu.2022.05.19a' of git://git./linux/kernel/git/paulmck/linux-rcu
Pull RCU update from Paul McKenney:
- Documentation updates
- Miscellaneous fixes
- Callback-offloading updates, mainly simplifications
- RCU-tasks updates, including some -rt fixups, handling of systems
with sparse CPU numbering, and a fix for a boot-time race-condition
failure
- Put SRCU on a memory diet in order to reduce the size of the
srcu_struct structure
- Torture-test updates fixing some bugs in tests and closing some
testing holes
- Torture-test updates for the RCU tasks flavors, most notably ensuring
that building rcutorture and friends does not change the
RCU-tasks-related Kconfig options
- Torture-test scripting updates
- Expedited grace-period updates, most notably providing
milliseconds-scale (not all that) soft real-time response from
synchronize_rcu_expedited().
This is also the first time in almost 30 years of RCU that someone
other than me has pushed for a reduction in the RCU CPU stall-warning
timeout, in this case by more than three orders of magnitude from 21
seconds to 20 milliseconds. This tighter timeout applies only to
expedited grace periods
* tag 'rcu.2022.05.19a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (80 commits)
rcu: Move expedited grace period (GP) work to RT kthread_worker
rcu: Introduce CONFIG_RCU_EXP_CPU_STALL_TIMEOUT
srcu: Drop needless initialization of sdp in srcu_gp_start()
srcu: Prevent expedited GPs and blocking readers from consuming CPU
srcu: Add contention check to call_srcu() srcu_data ->lock acquisition
srcu: Automatically determine size-transition strategy at boot
rcutorture: Make torture.sh allow for --kasan
rcutorture: Make torture.sh refscale and rcuscale specify Tasks Trace RCU
rcutorture: Make kvm.sh allow more memory for --kasan runs
torture: Save "make allmodconfig" .config file
scftorture: Remove extraneous "scf" from per_version_boot_params
rcutorture: Adjust scenarios' Kconfig options for CONFIG_PREEMPT_DYNAMIC
torture: Enable CSD-lock stall reports for scftorture
torture: Skip vmlinux check for kvm-again.sh runs
scftorture: Adjust for TASKS_RCU Kconfig option being selected
rcuscale: Allow rcuscale without RCU Tasks Rude/Trace
rcuscale: Allow rcuscale without RCU Tasks
refscale: Allow refscale without RCU Tasks Rude/Trace
refscale: Allow refscale without RCU Tasks
rcutorture: Allow specifying per-scenario stat_interval
...
Linus Torvalds [Mon, 23 May 2022 18:43:44 +0000 (11:43 -0700)]
Merge tag 'lkmm.2022.05.20a' of git://git./linux/kernel/git/paulmck/linux-rcu
Pull LKMM update from Paul McKenney:
"This updates the klitmus7 compatibility table to indicate that
herdtools7 7.56.1 or better is required for Linux kernel v5.17 or
later"
* tag 'lkmm.2022.05.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
tools/memory-model/README: Update klitmus7 compat table
Linus Torvalds [Mon, 23 May 2022 18:33:25 +0000 (11:33 -0700)]
Merge tag 'nolibc.2022.05.20a' of git://git./linux/kernel/git/paulmck/linux-rcu
Pull nolibc library updates from Paul McKenney:
"This adds a number of library functions and splits this library into
multiple files"
* tag 'nolibc.2022.05.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (61 commits)
tools/nolibc/string: Implement `strdup()` and `strndup()`
tools/nolibc/string: Implement `strnlen()`
tools/nolibc/stdlib: Implement `malloc()`, `calloc()`, `realloc()` and `free()`
tools/nolibc/types: Implement `offsetof()` and `container_of()` macro
tools/nolibc/sys: Implement `mmap()` and `munmap()`
tools/nolibc: i386: Implement syscall with 6 arguments
tools/nolibc: Remove .global _start from the entry point code
tools/nolibc: Replace `asm` with `__asm__`
tools/nolibc: x86-64: Update System V ABI document link
tools/nolibc/stdlib: only reference the external environ when inlined
tools/nolibc/string: do not use __builtin_strlen() at -O0
tools/nolibc: add the nolibc subdir to the common Makefile
tools/nolibc: add a makefile to install headers
tools/nolibc/types: add poll() and waitpid() flag definitions
tools/nolibc/sys: add syscall definition for getppid()
tools/nolibc/string: add strcmp() and strncmp()
tools/nolibc/stdio: add support for '%p' to vfprintf()
tools/nolibc/stdlib: add a simple getenv() implementation
tools/nolibc/stdio: make printf(%s) accept NULL
tools/nolibc/stdlib: implement abort()
...
Linus Torvalds [Mon, 23 May 2022 18:27:24 +0000 (11:27 -0700)]
Merge tag 'efi-next-for-v5.19' of git://git./linux/kernel/git/efi/efi
Pull EFI updates from Ard Biesheuvel:
- Allow runtime services to be re-enabled at boot on RT kernels.
- Provide access to secrets injected into the boot image by CoCo
hypervisors (COnfidential COmputing)
- Use DXE services on x86 to make the boot image executable after
relocation, if needed.
- Prefer mirrored memory for randomized allocations.
- Only randomize the placement of the kernel image on arm64 if the
loader has not already done so.
- Add support for obtaining the boot hartid from EFI on RISC-V.
* tag 'efi-next-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
riscv/efi_stub: Add support for RISCV_EFI_BOOT_PROTOCOL
efi: stub: prefer mirrored memory for randomized allocations
efi/arm64: libstub: run image in place if randomized by the loader
efi: libstub: pass image handle to handle_kernel_image()
efi: x86: Set the NX-compatibility flag in the PE header
efi: libstub: ensure allocated memory to be executable
efi: libstub: declare DXE services table
efi: Add missing prototype for efi_capsule_setup_info
docs: security: Add secrets/coco documentation
efi: Register efi_secret platform device if EFI secret area is declared
virt: Add efi_secret module to expose confidential computing secrets
efi: Save location of EFI confidential computing area
efi: Allow to enable EFI runtime services by default on RT
Borislav Petkov [Mon, 23 May 2022 08:19:30 +0000 (10:19 +0200)]
Merge branches 'edac-misc' and 'edac-alloc-cleanup' into edac-updates-for-v5.19
Combine all collected EDAC changes for submission into v5.19:
* edac-misc:
EDAC/xgene: Fix typo processsors -> processors
EDAC/i5100: Remove unused inline function i5100_nrecmema_dm_buf_id()
EDAC/ghes: Change ghes_hw from global to static
EDAC/armada_xp: Use devm_platform_ioremap_resource()
EDAC/synopsys: Add a SPDX identifier
EDAC/synopsys: Add driver support for i.MX platforms
EDAC/dmc520: Don't print an error for each unconfigured interrupt line
efi/cper: Reformat CPER memory error location to more readable
EDAC/ghes: Unify CPER memory error location reporting
efi/cper: Add a cper_mem_err_status_str() to decode error description
powerpc/85xx: Remove fsl,85... bindings
* edac-alloc-cleanup:
EDAC: Use kcalloc()
EDAC/mc: Get rid of edac_align_ptr()
EDAC/device: Sanitize edac_device_alloc_ctl_info() definition
EDAC/device: Get rid of the silly one-shot memory allocation in edac_device_alloc_ctl_info()
EDAC/pci: Get rid of the silly one-shot memory allocation in edac_pci_alloc_ctl_info()
EDAC/mc: Get rid of silly one-shot struct allocation in edac_mc_alloc()
Signed-off-by: Borislav Petkov <bp@suse.de>
Yang Li [Wed, 18 May 2022 23:09:53 +0000 (07:09 +0800)]
xtensa: Return true/false (not 1/0) from bool function
Return boolean values ("true" or "false") instead of 1 or 0 from bool
function. This fixes the following warnings from coccicheck:
./arch/xtensa/kernel/traps.c:304:10-11: WARNING: return of 0/1 in
function 'check_div0' with return type bool
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Message-Id: <
20220518230953.112266-1-yang.lee@linux.alibaba.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Linus Torvalds [Sun, 22 May 2022 19:52:31 +0000 (09:52 -1000)]
Linux 5.18
David Howells [Sat, 21 May 2022 07:18:28 +0000 (08:18 +0100)]
afs: Fix afs_getattr() to refetch file status if callback break occurred
If a callback break occurs (change notification), afs_getattr() needs to
issue an FS.FetchStatus RPC operation to update the status of the file
being examined by the stat-family of system calls.
Fix afs_getattr() to do this if AFS_VNODE_CB_PROMISED has been cleared
on a vnode by a callback break. Skip this if AT_STATX_DONT_SYNC is set.
This can be tested by appending to a file on one AFS client and then
using "stat -L" to examine its length on a machine running kafs. This
can also be watched through tracing on the kafs machine. The callback
break is seen:
kworker/1:1-46 [001] ..... 978.910812: afs_cb_call: c=
0000005f YFSCB.CallBack
kworker/1:1-46 [001] ...1. 978.910829: afs_cb_break: 100058:23b4c:242d2c2 b=2 s=1 break-cb
kworker/1:1-46 [001] ..... 978.911062: afs_call_done: c=
0000005f ret=0 ab=0 [
0000000082994ead]
And then the stat command generated no traffic if unpatched, but with
this change a call to fetch the status can be observed:
stat-4471 [000] ..... 986.744122: afs_make_fs_call: c=
000000ab 100058:023b4c:242d2c2 YFS.FetchStatus
stat-4471 [000] ..... 986.745578: afs_call_done: c=
000000ab ret=0 ab=0 [
0000000087fc8c84]
Fixes:
08e0e7c82eea ("[AF_RXRPC]: Make the in-kernel AFS filesystem use AF_RXRPC.")
Reported-by: Markus Suvanto <markus.suvanto@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Tested-by: Markus Suvanto <markus.suvanto@gmail.com>
Tested-by: kafs-testing+fedora34_64checkkafs-build-496@auristor.com
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216010
Link: https://lore.kernel.org/r/165308359800.162686.14122417881564420962.stgit@warthog.procyon.org.uk/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 22 May 2022 18:04:38 +0000 (08:04 -1000)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Some I2C driver bugfixes for 5.18. Nothing spectacular but worth
fixing"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
drivers: i2c: thunderx: Allow driver to work with ACPI defined TWSI controllers
i2c: ismt: Provide a DMA buffer for Interrupt Cause Logging
i2c: mt7621: fix missing clk_disable_unprepare() on error in mtk_i2c_probe()
Geert Uytterhoeven [Fri, 20 May 2022 14:32:30 +0000 (16:32 +0200)]
m68k: atari: Make Atari ROM port I/O write macros return void
The macros implementing Atari ROM port I/O writes do not cast away their
output, unlike similar implementations for other I/O buses.
When they are combined using conditional expressions in the definitions of
outb() and friends, this triggers sparse warnings like:
drivers/net/appletalk/cops.c:382:17: error: incompatible types in conditional expression (different base types):
drivers/net/appletalk/cops.c:382:17: unsigned char
drivers/net/appletalk/cops.c:382:17: void
Fix this by adding casts to "void".
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Michael Schmitz <schmitzmic@gmail.com>
Link: https://lore.kernel.org/r/c15bedc83d90a14fffcd5b1b6bfb32b8a80282c5.1653057096.git.geert@linux-m68k.org
Linus Torvalds [Sun, 22 May 2022 00:14:02 +0000 (14:14 -1000)]
Merge tag 'perf-tools-fixes-for-v5.18-2022-05-21' of git://git./linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix and validate CPU map inputs in synthetic PERF_RECORD_STAT events
in 'perf stat'.
- Fix x86's arch__intr_reg_mask() for the hybrid platform.
- Address 'perf bench numa' compiler error on s390.
- Fix check for btf__load_from_kernel_by_id() in libbpf.
- Fix "all PMU test" 'perf test' to skip hv_24x7/hv_gpci tests on
powerpc.
- Fix session topology test to skip the test in guest environment.
- Skip BPF 'perf test' if clang is not present.
- Avoid shell test description infinite loop in 'perf test'.
- Fix Intel LBR callstack entries and nr print message.
* tag 'perf-tools-fixes-for-v5.18-2022-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf session: Fix Intel LBR callstack entries and nr print message
perf test bpf: Skip test if clang is not present
perf test session topology: Fix test to skip the test in guest environment
perf bench numa: Address compiler error on s390
perf test: Avoid shell test description infinite loop
perf regs x86: Fix arch__intr_reg_mask() for the hybrid platform
perf test: Fix "all PMU test" to skip hv_24x7/hv_gpci tests on powerpc
perf stat: Fix and validate CPU map inputs in synthetic PERF_RECORD_STAT events
perf build: Fix check for btf__load_from_kernel_by_id() in libbpf
Linus Torvalds [Sat, 21 May 2022 23:58:43 +0000 (13:58 -1000)]
Merge tag 'input-for-v5.18-rc7' of git://git./linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"A small fixup to ili210x touchscreen driver, and updated maintainer
entry for the device tree binding of Mediatek 6779 keypad:
- fix reset timing of Ilitek touchscreens
- update maintainer entry of DT binding of Mediatek 6779 keypad"
* tag 'input-for-v5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: ili210x - use one common reset implementation
Input: ili210x - fix reset timing
dt-bindings: input: mediatek,mt6779-keypad: update maintainer
Linus Torvalds [Sat, 21 May 2022 23:31:50 +0000 (13:31 -1000)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two patches, both in drivers.
The iscsi one is fixing the cpumask issue you commented on and the ufs
one is a late arriving fix for conditions that can occur in Host
Performance Booster reads"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: core: Fix referencing invalid rsp field
scsi: target: Fix incorrect use of cpumask_t
Chengdong Li [Tue, 17 May 2022 01:57:26 +0000 (09:57 +0800)]
perf session: Fix Intel LBR callstack entries and nr print message
When generating callstack information from branch_stack(Intel LBR), the
actual number of callstack entry should be bigger than the number of
branch_stack, for example:
branch_stack records:
B() -> C()
A() -> B()
converted callstack records should be:
C()
B()
A()
though, the number of callstack equals
to the number of branch stack plus 1.
This patch fixes above issue in branch_stack__printf(). For example,
# echo 'scale=2000; 4*a(1)' > cmd
# perf record --call-graph lbr bc -l < cmd
Before applying this patch, `perf script -D` output:
1220022677386876 0x2a40 [0xd8]: PERF_RECORD_SAMPLE(IP, 0x4002): 17990/17990: 0x40a6d6 period: 894172 addr: 0
... LBR call chain: nr:8
..... 0:
fffffffffffffe00
..... 1:
000000000040a410
..... 2:
000000000040573c
..... 3:
0000000000408650
..... 4:
00000000004022f2
..... 5:
00000000004015f5
..... 6:
00007f5ed6dcb553
..... 7:
0000000000401698
... FP chain: nr:2
..... 0:
fffffffffffffe00
..... 1:
000000000040a6d8
... branch callstack: nr:6 # which is not consistent with LBR records.
..... 0:
000000000040a410
..... 1:
0000000000408650 # ditto
..... 2:
00000000004022f2
..... 3:
00000000004015f5
..... 4:
00007f5ed6dcb553
..... 5:
0000000000401698
... thread: bc:17990
...... dso: /usr/bin/bc
bc 17990 1220022.677386: 894172 cycles:
40a410 [unknown] (/usr/bin/bc)
40573c [unknown] (/usr/bin/bc)
408650 [unknown] (/usr/bin/bc)
4022f2 [unknown] (/usr/bin/bc)
4015f5 [unknown] (/usr/bin/bc)
7f5ed6dcb553 __libc_start_main+0xf3 (/usr/lib64/libc-2.17.so)
401698 [unknown] (/usr/bin/bc)
After applied:
1220022677386876 0x2a40 [0xd8]: PERF_RECORD_SAMPLE(IP, 0x4002): 17990/17990: 0x40a6d6 period: 894172 addr: 0
... LBR call chain: nr:8
..... 0:
fffffffffffffe00
..... 1:
000000000040a410
..... 2:
000000000040573c
..... 3:
0000000000408650
..... 4:
00000000004022f2
..... 5:
00000000004015f5
..... 6:
00007f5ed6dcb553
..... 7:
0000000000401698
... FP chain: nr:2
..... 0:
fffffffffffffe00
..... 1:
000000000040a6d8
... branch callstack: nr:7
..... 0:
000000000040a410
..... 1:
000000000040573c
..... 2:
0000000000408650
..... 3:
00000000004022f2
..... 4:
00000000004015f5
..... 5:
00007f5ed6dcb553
..... 6:
0000000000401698
... thread: bc:17990
...... dso: /usr/bin/bc
bc 17990 1220022.677386: 894172 cycles:
40a410 [unknown] (/usr/bin/bc)
40573c [unknown] (/usr/bin/bc)
408650 [unknown] (/usr/bin/bc)
4022f2 [unknown] (/usr/bin/bc)
4015f5 [unknown] (/usr/bin/bc)
7f5ed6dcb553 __libc_start_main+0xf3 (/usr/lib64/libc-2.17.so)
401698 [unknown] (/usr/bin/bc)
Change from v1:
- refined code style according to Jiri's review comments.
Signed-off-by: Chengdong Li <chengdongli@tencent.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: likexu@tencent.com
Link: https://lore.kernel.org/r/20220517015726.96131-1-chengdongli@tencent.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Athira Rajeev [Wed, 11 May 2022 11:54:38 +0000 (17:24 +0530)]
perf test bpf: Skip test if clang is not present
Perf BPF filter test fails in environment where "clang" is not
installed.
Test failure logs:
<<>>
42: BPF filter :
42.1: Basic BPF filtering : Skip
42.2: BPF pinning : FAILED!
42.3: BPF prologue generation : FAILED!
<<>>
Enabling verbose option provided debug logs which says clang/llvm needs
to be installed. Snippet of verbose logs:
<<>>
42.2: BPF pinning :
--- start ---
test child forked, pid 61423
ERROR: unable to find clang.
Hint: Try to install latest clang/llvm to support BPF.
Check your $PATH
<<logs_here>>
Failed to compile test case: 'Basic BPF llvm compile'
Unable to get BPF object, fix kbuild first
test child finished with -1
---- end ----
BPF filter subtest 2: FAILED!
<<>>
Here subtests, "BPF pinning" and "BPF prologue generation" failed and
logs shows clang/llvm is needed. After installing clang, testcase
passes.
Reason on why subtest failure happens though logs has proper debug
information:
Main function __test__bpf calls test_llvm__fetch_bpf_obj by
passing 4th argument as true ( 4th arguments maps to parameter
"force" in test_llvm__fetch_bpf_obj ). But this will cause
test_llvm__fetch_bpf_obj to skip the check for clang/llvm.
Snippet of code part which checks for clang based on
parameter "force" in test_llvm__fetch_bpf_obj:
<<>>
if (!force && (!llvm_param.user_set_param &&
<<>>
Since force is set to "false", test won't get skipped and fails to
compile test case. The BPF code compilation needs clang, So pass the
fourth argument as "false" and also skip the test if reason for return
is "TEST_SKIP"
After the patch:
<<>>
42: BPF filter :
42.1: Basic BPF filtering : Skip
42.2: BPF pinning : Skip
42.3: BPF prologue generation : Skip
<<>>
Fixes:
ba1fae431e74bb42 ("perf test: Add 'perf test BPF'")
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Disha Goel <disgoel@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lore.kernel.org/r/20220511115438.84032-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Athira Rajeev [Wed, 11 May 2022 11:49:59 +0000 (17:19 +0530)]
perf test session topology: Fix test to skip the test in guest environment
The session topology test fails in powerpc pSeries platform.
Test logs:
<<>>
Session topology : FAILED!
<<>>
This testcases tests cpu topology by checking the core_id and socket_id
stored in perf_env from perf session. The data from perf session is
compared with the cpu topology information from
"/sys/devices/system/cpu/cpuX/topology" like core_id,
physical_package_id.
In case of virtual environment, detail like physical_package_id is
restricted to be exposed. Hence physical_package_id is set to -1. The
testcase fails on such platforms since socket_id can't be fetched from
topology info.
Skip the testcase in powerpc if physical_package_id returns -1.
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>---
Tested-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20220511114959.84002-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Thomas Richter [Fri, 20 May 2022 08:11:58 +0000 (10:11 +0200)]
perf bench numa: Address compiler error on s390
The compilation on s390 results in this error:
# make DEBUG=y bench/numa.o
...
bench/numa.c: In function ‘__bench_numa’:
bench/numa.c:1749:81: error: ‘%d’ directive output may be truncated
writing between 1 and 11 bytes into a region of size between
10 and 20 [-Werror=format-truncation=]
1749 | snprintf(tname, sizeof(tname), "process%d:thread%d", p, t);
^~
...
bench/numa.c:1749:64: note: directive argument in the range
[-
2147483647,
2147483646]
...
#
The maximum length of the %d replacement is 11 characters because of the
negative sign. Therefore extend the array by two more characters.
Output after:
# make DEBUG=y bench/numa.o > /dev/null 2>&1; ll bench/numa.o
-rw-r--r-- 1 root root 418320 May 19 09:11 bench/numa.o
#
Fixes:
3aff8ba0a4c9c919 ("perf bench numa: Avoid possible truncation when using snprintf()")
Suggested-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: https://lore.kernel.org/r/20220520081158.2990006-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Tue, 17 May 2022 20:41:44 +0000 (13:41 -0700)]
perf test: Avoid shell test description infinite loop
for_each_shell_test() is already strict in expecting tests to be files
and executable. It is sometimes possible when it iterates over all files
that it finds one that is executable and lacks a newline character. When
this happens the loop never terminates as it doesn't check for EOF.
Add the EOF check to make this loop at least bounded by the file size.
If the description is returned as NULL then also skip the test.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Marco Elver <elver@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Sohaib Mohamed <sohaib.amhmd@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220517204144.645913-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Kan Liang [Wed, 18 May 2022 14:51:25 +0000 (07:51 -0700)]
perf regs x86: Fix arch__intr_reg_mask() for the hybrid platform
The X86 specific arch__intr_reg_mask() is to check whether the kernel
and hardware can collect XMM registers. But it doesn't work on some
hybrid platform.
Without the patch on ADL-N:
$ perf record -I?
available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10
R11 R12 R13 R14 R15
The config of the test event doesn't contain the PMU information. The
kernel may fail to initialize it on the correct hybrid PMU and return
the wrong non-supported information.
Add the PMU information into the config for the hybrid platform. The
same register set is supported among different hybrid PMUs. Checking
the first available one is good enough.
With the patch on ADL-N:
$ perf record -I?
available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10
R11 R12 R13 R14 R15 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 XMM9
XMM10 XMM11 XMM12 XMM13 XMM14 XMM15
Fixes:
6466ec14aaf44ff1 ("perf regs x86: Add X86 specific arch__intr_reg_mask()")
Reported-by: Ammy Yi <ammy.yi@intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220518145125.1494156-1-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Athira Rajeev [Fri, 20 May 2022 10:12:36 +0000 (15:42 +0530)]
perf test: Fix "all PMU test" to skip hv_24x7/hv_gpci tests on powerpc
"perf all PMU test" picks the input events from "perf list --raw-dump
pmu" list and runs "perf stat -e" for each of the event in the list. In
case of powerpc, the PowerVM environment supports events from hv_24x7
and hv_gpci PMU which is of example format like below:
- hv_24x7/CPM_ADJUNCT_INST,domain=?,core=?/
- hv_gpci/event,partition_id=?/
The value for "?" needs to be filled in depending on system and
respective event. CPM_ADJUNCT_INST needs have core value and domain
value. hv_gpci event needs partition_id. Similarly, there are other
events for hv_24x7 and hv_gpci having "?" in event format. Hence skip
these events on powerpc platform since values like partition_id, domain
is specific to system and event.
Fixes:
3d5ac9effcc640d5 ("perf test: Workload test of all PMUs")
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Disha Goel <disgoel@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Link: https://lore.kernel.org/r/20220520101236.17249-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Jens Axboe [Sat, 21 May 2022 15:17:05 +0000 (09:17 -0600)]
io_uring: cleanup handling of the two task_work lists
Rather than pass in a bool for whether or not this work item needs to go
into the priority list or not, provide separate helpers for it. For most
use cases, this also then gets rid of the branch for non-priority task
work.
While at it, rename the prior_task_list to prio_task_list. Prior is
a confusing name for it, as it would seem to indicate that this is the
previous task_work list. prio makes it clear that this is a priority
task_work list.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Julia Lawall [Sat, 21 May 2022 11:10:49 +0000 (13:10 +0200)]
EDAC/xgene: Fix typo processsors -> processors
Spelling mistake (triple letters) in comment. Detected with the help of
Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220521111145.81697-39-Julia.Lawall@inria.fr
Julia Lawall [Sat, 21 May 2022 11:10:38 +0000 (13:10 +0200)]
mtip32xx: fix typo in comment
Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/20220521111145.81697-28-Julia.Lawall@inria.fr
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Julia Lawall [Sat, 21 May 2022 11:10:39 +0000 (13:10 +0200)]
blk-mq: fix typo in comment
Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/20220521111145.81697-29-Julia.Lawall@inria.fr
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Piyush Malgujar [Wed, 11 May 2022 13:36:59 +0000 (06:36 -0700)]
drivers: i2c: thunderx: Allow driver to work with ACPI defined TWSI controllers
Due to i2c->adap.dev.fwnode not being set, ACPI_COMPANION() wasn't properly
found for TWSI controllers.
Signed-off-by: Szymon Balcerak <sbalcerak@marvell.com>
Signed-off-by: Piyush Malgujar <pmalgujar@marvell.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Mika Westerberg [Wed, 27 Apr 2022 10:19:10 +0000 (13:19 +0300)]
i2c: ismt: Provide a DMA buffer for Interrupt Cause Logging
Before sending a MSI the hardware writes information pertinent to the
interrupt cause to a memory location pointed by SMTICL register. This
memory holds three double words where the least significant bit tells
whether the interrupt cause of master/target/error is valid. The driver
does not use this but we need to set it up because otherwise it will
perform DMA write to the default address (0) and this will cause an
IOMMU fault such as below:
DMAR: DRHD: handling fault status reg 2
DMAR: [DMA Write] Request device [00:12.0] PASID
ffffffff fault addr 0
[fault reason 05] PTE Write access is not set
To prevent this from happening, provide a proper DMA buffer for this
that then gets mapped by the IOMMU accordingly.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Yang Yingliang [Sat, 14 May 2022 02:31:47 +0000 (10:31 +0800)]
i2c: mt7621: fix missing clk_disable_unprepare() on error in mtk_i2c_probe()
Fix the missing clk_disable_unprepare() before return
from mtk_i2c_probe() in the error handling case.
Fixes:
d04913ec5f89 ("i2c: mt7621: Add MediaTek MT7621/7628/7688 I2C driver")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Linus Torvalds [Sat, 21 May 2022 06:34:59 +0000 (20:34 -1000)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM:
- Correctly expose GICv3 support even if no irqchip is created so
that userspace doesn't observe it changing pointlessly (fixing a
regression with QEMU)
- Don't issue a hypercall to set the id-mapped vectors when protected
mode is enabled (fix for pKVM in combination with CPUs affected by
Spectre-v3a)
x86 (five oneliners, of which the most interesting two are):
- a NULL pointer dereference on INVPCID executed with paging
disabled, but only if KVM is using shadow paging
- an incorrect bsearch comparison function which could truncate the
result and apply PMU event filtering incorrectly. This one comes
with a selftests update too"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86/mmu: fix NULL pointer dereference on guest INVPCID
KVM: x86: hyper-v: fix type of valid_bank_mask
KVM: Free new dirty bitmap if creating a new memslot fails
KVM: eventfd: Fix false positive RCU usage warning
selftests: kvm/x86: Verify the pmu event filter matches the correct event
selftests: kvm/x86: Add the helper function create_pmu_event_filter
kvm: x86/pmu: Fix the compare function used by the pmu event filter
KVM: arm64: Don't hypercall before EL2 init
KVM: arm64: vgic-v3: Consistently populate ID_AA64PFR0_EL1.GIC
KVM: x86/mmu: Update number of zapped pages even if page list is stable
Linus Torvalds [Sat, 21 May 2022 05:07:28 +0000 (19:07 -1000)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Three clk driver fixes to close out the release
- Fix a divider calculation breaking boot on Broadcom bcm2835
- Fix HDMI output on Tanix TX6 mini board by reverting a patch
- Fix clk_set_rate_range() calls on at91 by considering the range
while calculating the divisor"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: at91: generated: consider range when calculating best rate
Revert "clk: sunxi-ng: sun6i-rtc: Add support for H6"
clk: bcm2835: fix bcm2835_clock_choose_div
Linus Torvalds [Sat, 21 May 2022 04:58:37 +0000 (18:58 -1000)]
Merge tag 'drm-fixes-2022-05-21' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Few final fixes for 5.18, one amdgpu, core dp mst leak fix, dma-buf
two fixes, and i915 has a few fixes, one for a regression on older
GM45 chipsets,
dma-buf:
- ioctl userspace use fix
- fix dma-buf sysfs name generation
core:
- dp/mst leak fix
amdgpu:
- suspend/resume regression fix
i915:
- fix for #5806: GPU hangs and display artifacts on Intel GM45
- reject DMC with out-of-spec MMIO
- correctly mark guilty contexts on GuC reset"
* tag 'drm-fixes-2022-05-21' of git://anongit.freedesktop.org/drm/drm:
drm/i915: Use i915_gem_object_ggtt_pin_ww for reloc_iomap
drm/amd: Don't reset dGPUs if the system is going to s2idle
drm/dp/mst: fix a possible memory leak in fetch_monitor_name()
dma-buf: fix use of DMA_BUF_SET_NAME_{A,B} in userspace
i915/guc/reset: Make __guc_reset_context aware of guilty engines
drm/i915/dmc: Add MMIO range restrictions
dma-buf: ensure unique directory name for dmabuf stats
Dave Airlie [Fri, 20 May 2022 20:00:48 +0000 (06:00 +1000)]
Merge tag 'drm-intel-fixes-2022-05-20' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- fix for #5806: GPU hangs and display artifacts on 5.18-rc3 on Intel GM45
- reject DMC with out-of-spec MMIO (Cc: stable)
- correctly mark guilty contexts on GuC reset.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YocqqvG6PbYx3QgJ@jlahtine-mobl.ger.corp.intel.com
Dave Airlie [Fri, 20 May 2022 19:58:59 +0000 (05:58 +1000)]
Merge tag 'drm-misc-fixes-2022-05-20' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Fix for a memory leak in dp_mst, a (userspace) build fix for
DMA_BUF_SET_NAME defines and a directory name generation fix for dmabuf
stats
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220520072408.cpjzy2taugagvrh7@houat
Peter Zijlstra [Fri, 20 May 2022 18:38:06 +0000 (20:38 +0200)]
perf: Fix sys_perf_event_open() race against self
Norbert reported that it's possible to race sys_perf_event_open() such
that the looser ends up in another context from the group leader,
triggering many WARNs.
The move_group case checks for races against itself, but the
!move_group case doesn't, seemingly relying on the previous
group_leader->ctx == ctx check. However, that check is racy due to not
holding any locks at that time.
Therefore, re-check the result after acquiring locks and bailing
if they no longer match.
Additionally, clarify the not_move_group case from the
move_group-vs-move_group race.
Fixes:
f63a8daa5812 ("perf: Fix event->ctx locking")
Reported-by: Norbert Slusarek <nslusarek@gmx.net>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 20 May 2022 18:26:28 +0000 (08:26 -1000)]
Merge tag 'gpio-fixes-for-v5.18' of git://git./linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix bitops logic in gpio-vf610
- return an error if the user tries to use inverted polarity in
gpio-mvebu
* tag 'gpio-fixes-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: mvebu/pwm: Refuse requests with inverted polarity
gpio: gpio-vf610: do not touch other bits when set the target bit
Linus Torvalds [Fri, 20 May 2022 18:20:28 +0000 (08:20 -1000)]
Merge tag 'mmc-v5.18-rc4-2' of git://git./linux/kernel/git/ulfh/mmc
Pull MMC fix from Ulf Hansson:
"MMC core:
- Fix busy polling for MMC_SEND_OP_COND again"
* tag 'mmc-v5.18-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: core: Fix busy polling for MMC_SEND_OP_COND again
Linus Torvalds [Fri, 20 May 2022 18:15:40 +0000 (08:15 -1000)]
Merge tag 'ceph-for-5.18-rc8' of https://github.com/ceph/ceph-client
Pull ceph fix from Ilya Dryomov:
"A fix for a nasty use-after-free, marked for stable"
* tag 'ceph-for-5.18-rc8' of https://github.com/ceph/ceph-client:
libceph: fix misleading ceph_osdc_cancel_request() comment
libceph: fix potential use-after-free on linger ping and resends
Linus Torvalds [Fri, 20 May 2022 18:13:32 +0000 (08:13 -1000)]
Merge tag 'riscv-for-linus-5.18-rc8' of git://git./linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- fix the fu540-c000 device tree to avoid a schema check failure on the
DMA node name
- fix typo in the PolarFire SOC device tree
* tag 'riscv-for-linus-5.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: dts: microchip: fix gpio1 reg property typo
riscv: dts: sifive: fu540-c000: align dma node name with dtschema
Linus Torvalds [Fri, 20 May 2022 18:09:00 +0000 (08:09 -1000)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Three arm64 fixes for -rc8/final.
The MTE and stolen time fixes have been doing the rounds for a little
while, but review and testing feedback was ongoing until earlier this
week. The kexec fix showed up on Monday and addresses a failure
observed under Qemu.
Summary:
- Add missing write barrier to publish MTE tags before a pte update
- Fix kexec relocation clobbering its own data structures
- Fix stolen time crash if a timer IRQ fires during CPU hotplug"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mte: Ensure the cleared tags are visible before setting the PTE
arm64: kexec: load from kimage prior to clobbering
arm64: paravirt: Use RCU read locks to guard stolen_time
Catalin Marinas [Fri, 20 May 2022 17:51:54 +0000 (18:51 +0100)]
Merge branch 'for-next/esr-elx-64-bit' into for-next/core
* for-next/esr-elx-64-bit:
: Treat ESR_ELx as a 64-bit register.
KVM: arm64: uapi: Add kvm_debug_exit_arch.hsr_high
KVM: arm64: Treat ESR_EL2 as a 64-bit register
arm64: Treat ESR_ELx as a 64-bit register
arm64: compat: Do not treat syscall number as ESR_ELx for a bad syscall
arm64: Make ESR_ELx_xVC_IMM_MASK compatible with assembly
Catalin Marinas [Fri, 20 May 2022 17:51:15 +0000 (18:51 +0100)]
Merge branch 'for-next/kselftest' into for-next/core
* for-next/kselftest: (32 commits)
: arm64 kselftest updates.
kselftest/arm64: Explicitly build no BTI tests with BTI disabled
kselftest/arm64: bti: force static linking
selftests/arm64: Use switch statements in mte_common_util.c
selftests/arm64: Remove casts to/from void in check_tags_inclusion
selftests/arm64: Check failures to set tags in check_tags_inclusion
selftests/arm64: Allow zero tags in mte_switch_mode()
selftests/arm64: Log errors in verify_mte_pointer_validity()
kselftest/arm64: Fix ABI header directory location
selftests/arm64: Fix O= builds for the floating point tests
selftests/arm64: Clean the fp helper libraries
selftests/arm64: Define top_srcdir for the fp tests
selftests/arm64: Use TEST_GEN_PROGS_EXTENDED in the FP Makefile
kselftest/arm64: fix array_size.cocci warning
selftests/arm64: Add a testcase for handling of ZA on clone()
kselftest/arm64: Add SME support to syscall ABI test
kselftest/arm64: Add coverage for the ZA ptrace interface
kselftest/arm64: Add streaming SVE to SVE ptrace tests
kselftest/arm64: signal: Add SME signal handling tests
kselftest/arm64: Add stress test for SME ZA context switching
kselftest/arm64: signal: Handle ZA signal context in core code
...
Catalin Marinas [Fri, 20 May 2022 17:50:57 +0000 (18:50 +0100)]
Merge branch 'for-next/sysreg-gen' into for-next/core
* for-next/sysreg-gen: (32 commits)
: Automatic system register definition generation.
arm64/sysreg: Generate definitions for FAR_ELx
arm64/sysreg: Generate definitions for DACR32_EL2
arm64/sysreg: Generate definitions for CSSELR_EL1
arm64/sysreg: Generate definitions for CPACR_ELx
arm64/sysreg: Generate definitions for CONTEXTIDR_ELx
arm64/sysreg: Generate definitions for CLIDR_EL1
arm64/sve: Generate ZCR definitions
arm64/sme: Generate defintions for SVCR
arm64/sme: Generate SMPRI_EL1 definitions
arm64/sme: Automatically generate SMPRIMAP_EL2 definitions
arm64/sme: Automatically generate SMIDR_EL1 defines
arm64/sme: Automatically generate defines for SMCR
arm64/sysreg: Support generation of RAZ fields
arm64/sme: Remove _EL0 from name of SVCR - FIXME sysreg.h
arm64/sme: Standardise bitfield names for SVCR
arm64/sme: Drop SYS_ from SMIDR_EL1 defines
arm64/fp: Rename SVE and SME LEN field name to _WIDTH
arm64/fp: Make SVE and SME length register definition match architecture
arm64/sysreg: fix odd line spacing
arm64/sysreg: improve comment for regs without fields
...
Catalin Marinas [Fri, 20 May 2022 17:50:35 +0000 (18:50 +0100)]
Merge branches 'for-next/sme', 'for-next/stacktrace', 'for-next/fault-in-subpage', 'for-next/misc', 'for-next/ftrace' and 'for-next/crashkernel', remote-tracking branch 'arm64/for-next/perf' into for-next/core
* arm64/for-next/perf:
perf/arm-cmn: Decode CAL devices properly in debugfs
perf/arm-cmn: Fix filter_sel lookup
perf/marvell_cn10k: Fix tad_pmu_event_init() to check pmu type first
drivers/perf: hisi: Add Support for CPA PMU
drivers/perf: hisi: Associate PMUs in SICL with CPUs online
drivers/perf: arm_spe: Expose saturating counter to 16-bit
perf/arm-cmn: Add CMN-700 support
perf/arm-cmn: Refactor occupancy filter selector
perf/arm-cmn: Add CMN-650 support
dt-bindings: perf: arm-cmn: Add CMN-650 and CMN-700
perf: check return value of armpmu_request_irq()
perf: RISC-V: Remove non-kernel-doc ** comments
* for-next/sme: (30 commits)
: Scalable Matrix Extensions support.
arm64/sve: Move sve_free() into SVE code section
arm64/sve: Make kernel FPU protection RT friendly
arm64/sve: Delay freeing memory in fpsimd_flush_thread()
arm64/sme: More sensibly define the size for the ZA register set
arm64/sme: Fix NULL check after kzalloc
arm64/sme: Add ID_AA64SMFR0_EL1 to __read_sysreg_by_encoding()
arm64/sme: Provide Kconfig for SME
KVM: arm64: Handle SME host state when running guests
KVM: arm64: Trap SME usage in guest
KVM: arm64: Hide SME system registers from guests
arm64/sme: Save and restore streaming mode over EFI runtime calls
arm64/sme: Disable streaming mode and ZA when flushing CPU state
arm64/sme: Add ptrace support for ZA
arm64/sme: Implement ptrace support for streaming mode SVE registers
arm64/sme: Implement ZA signal handling
arm64/sme: Implement streaming SVE signal handling
arm64/sme: Disable ZA and streaming mode when handling signals
arm64/sme: Implement traps and syscall handling for SME
arm64/sme: Implement ZA context switching
arm64/sme: Implement streaming SVE context switching
...
* for-next/stacktrace:
: Stacktrace cleanups.
arm64: stacktrace: align with common naming
arm64: stacktrace: rename stackframe to unwind_state
arm64: stacktrace: rename unwinder functions
arm64: stacktrace: make struct stackframe private to stacktrace.c
arm64: stacktrace: delete PCS comment
arm64: stacktrace: remove NULL task check from unwind_frame()
* for-next/fault-in-subpage:
: btrfs search_ioctl() live-lock fix using fault_in_subpage_writeable().
btrfs: Avoid live-lock in search_ioctl() on hardware with sub-page faults
arm64: Add support for user sub-page fault probing
mm: Add fault_in_subpage_writeable() to probe at sub-page granularity
* for-next/misc:
: Miscellaneous patches.
arm64: Kconfig.platforms: Add comments
arm64: Kconfig: Fix indentation and add comments
arm64: mm: avoid writable executable mappings in kexec/hibernate code
arm64: lds: move special code sections out of kernel exec segment
arm64/hugetlb: Implement arm64 specific huge_ptep_get()
arm64/hugetlb: Use ptep_get() to get the pte value of a huge page
arm64: mm: Make arch_faults_on_old_pte() check for migratability
arm64: mte: Clean up user tag accessors
arm64/hugetlb: Drop TLB flush from get_clear_flush()
arm64: Declare non global symbols as static
arm64: mm: Cleanup useless parameters in zone_sizes_init()
arm64: fix types in copy_highpage()
arm64: Set ARCH_NR_GPIO to 2048 for ARCH_APPLE
arm64: cputype: Avoid overflow using MIDR_IMPLEMENTOR_MASK
arm64: document the boot requirements for MTE
arm64/mm: Compute PTRS_PER_[PMD|PUD] independently of PTRS_PER_PTE
* for-next/ftrace:
: ftrace cleanups.
arm64/ftrace: Make function graph use ftrace directly
ftrace: cleanup ftrace_graph_caller enable and disable
* for-next/crashkernel:
: Support for crashkernel reservations above ZONE_DMA.
arm64: kdump: Do not allocate crash low memory if not needed
docs: kdump: Update the crashkernel description for arm64
of: Support more than one crash kernel regions for kexec -s
of: fdt: Add memory for devices by DT property "linux,usable-memory-range"
arm64: kdump: Reimplement crashkernel=X
arm64: Use insert_resource() to simplify code
kdump: return -ENOENT if required cmdline option does not exist
Mark Brown [Fri, 20 May 2022 16:16:38 +0000 (17:16 +0100)]
arm64/sysreg: Generate definitions for FAR_ELx
Convert FAR_ELx to automatic register generation as per DDI0487H.a. In the
architecture these registers have a single field "named" as "Faulting
Virtual Address for synchronous exceptions taken to ELx" occupying the
entire register, in order to fit in with the requirement to describe the
contents of the register I have created a single field named ADDR.
No functional change.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20220520161639.324236-7-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Mark Brown [Fri, 20 May 2022 16:16:37 +0000 (17:16 +0100)]
arm64/sysreg: Generate definitions for DACR32_EL2
Convert DACR32_EL2 to automatic register generation as per DDI0487H.a, no
functional change.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20220520161639.324236-6-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Mark Brown [Fri, 20 May 2022 16:16:36 +0000 (17:16 +0100)]
arm64/sysreg: Generate definitions for CSSELR_EL1
Convert CSSELR_EL1 to automatic generation as per DDI0487H.a, no functional
change.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20220520161639.324236-5-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Paolo Bonzini [Fri, 20 May 2022 17:48:11 +0000 (13:48 -0400)]
KVM: x86/mmu: fix NULL pointer dereference on guest INVPCID
With shadow paging enabled, the INVPCID instruction results in a call
to kvm_mmu_invpcid_gva. If INVPCID is executed with CR0.PG=0, the
invlpg callback is not set and the result is a NULL pointer dereference.
Fix it trivially by checking for mmu->invlpg before every call.
There are other possibilities:
- check for CR0.PG, because KVM (like all Intel processors after P5)
flushes guest TLB on CR0.PG changes so that INVPCID/INVLPG are a
nop with paging disabled
- check for EFER.LMA, because KVM syncs and flushes when switching
MMU contexts outside of 64-bit mode
All of these are tricky, go for the simple solution. This is CVE-2022-1789.
Reported-by: Yongkang Jia <kangel@zju.edu.cn>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Mark Brown [Fri, 20 May 2022 16:16:35 +0000 (17:16 +0100)]
arm64/sysreg: Generate definitions for CPACR_ELx
Convert the CPACR system register definitions to be automatically generated
using the definitions in DDI0487H.a. The kernel does have some additional
definitions for subfields of SMEN, FPEN and ZEN which are not identified as
distinct subfields in the architecture so the definitions are not updated
as part of this patch.
No functional change.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20220520161639.324236-4-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Mark Brown [Fri, 20 May 2022 16:16:34 +0000 (17:16 +0100)]
arm64/sysreg: Generate definitions for CONTEXTIDR_ELx
Convert the various CONTEXTIDR_ELx register definitions to be automatically
generated following the definitions in DDI0487H.a. No functional change.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20220520161639.324236-3-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
projects / platform / kernel / linux-starfive.git / log