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Message-Id: <20250725143925.1674618-1-catalin.marinas@arm.com>
Date: Fri, 25 Jul 2025 15:39:25 +0100
From: Catalin Marinas <catalin.marinas@....com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Catalin Marinas <cmarinas@...nel.org>,
Will Deacon <will@...nel.org>,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Subject: [GIT PULL] arm64 updates for 6.17
From: Catalin Marinas <cmarinas@...nel.org>
Hi Linus,
Please pull the arm64 updates below. A quick summary - perf support for
Branch Record Buffer Extensions (BRBE), typical PMU hardware updates,
small additions to MTE for store-only tag checking and exposing
non-address bits to signal handlers, HAVE_LIVEPATCH enabled on arm64,
VMAP_STACK forced on. There is also a TLBI optimisation on hardware that
does not require break-before-make when changing the user PTEs between
contiguous and non-contiguous. These patches touch the iommu/SMMU code.
More details in the tag.
Thanks.
The following changes since commit ef8923e6c051a98164c2889db943df9695a39888:
arm64: efi: Fix KASAN false positive for EFI runtime stack (2025-07-04 14:47:06 +0100)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux tags/arm64-upstream
for you to fetch changes up to 5b1ae9de71335865d06ff0e60eadcf368a735edf:
Merge branch 'for-next/feat_mte_store_only' into for-next/core (2025-07-24 16:03:34 +0100)
----------------------------------------------------------------
arm64 updates for 6.17:
Perf and PMU updates:
- Add support for new (v3) Hisilicon SLLC and DDRC PMUs
- Add support for Arm-NI PMU integrations that share interrupts between
clock domains within a given instance
- Allow SPE to be configured with a lower sample period than the
minimum recommendation advertised by PMSIDR_EL1.Interval
- Add suppport for Arm's "Branch Record Buffer Extension" (BRBE)
- Adjust the perf watchdog period according to cpu frequency changes
- Minor driver fixes and cleanups
Hardware features:
- Support for MTE store-only checking (FEAT_MTE_STORE_ONLY)
- Support for reporting the non-address bits during a synchronous MTE
tag check fault (FEAT_MTE_TAGGED_FAR)
- Optimise the TLBI when folding/unfolding contiguous PTEs on hardware
with FEAT_BBM (break-before-make) level 2 and no TLB conflict aborts
Software features:
- Enable HAVE_LIVEPATCH after implementing arch_stack_walk_reliable()
and using the text-poke API for late module relocations
- Force VMAP_STACK always on and change arm64_efi_rt_init() to use
arch_alloc_vmap_stack() in order to avoid KASAN false positives
ACPI:
- Improve SPCR handling and messaging on systems lacking an SPCR table
Debug:
- Simplify the debug exception entry path
- Drop redundant DBG_MDSCR_* macros
Kselftests:
- Cleanups and improvements for SME, SVE and FPSIMD tests
Miscellaneous:
- Optimise loop to reduce redundant operations in contpte_ptep_get()
- Remove ISB when resetting POR_EL0 during signal handling
- Mark the kernel as tainted on SEA and SError panic
- Remove redundant gcs_free() call
----------------------------------------------------------------
Ada Couprie Diaz (13):
arm64: debug: clean up single_step_handler logic
arm64: refactor aarch32_break_handler()
arm64: debug: call software breakpoint handlers statically
arm64: debug: call step handlers statically
arm64: debug: remove break/step handler registration infrastructure
arm64: entry: Add entry and exit functions for debug exceptions
arm64: debug: split hardware breakpoint exception entry
arm64: debug: refactor reinstall_suspended_bps()
arm64: debug: split single stepping exception entry
arm64: debug: split hardware watchpoint exception entry
arm64: debug: split brk64 exception entry
arm64: debug: split bkpt32 exception entry
arm64: debug: remove debug exception registration infrastructure
Alok Tiwari (3):
perf/cxlpmu: Fix devm_kcalloc() argument order in cxl_pmu_probe()
perf/cxlpmu: Remove unintended newline from IRQ name format string
perf/cxlpmu: Fix typos in cxl_pmu.c comments and documentation
Anshuman Khandual (6):
arm64/debug: Drop redundant DBG_MDSCR_* macros
KVM: selftests: Change MDSCR_EL1 register holding variables as uint64_t
arm64/sysreg: Add BRBE registers and fields
arm64: Handle BRBE booting requirements
KVM: arm64: nvhe: Disable branch generation in nVHE guests
arm64/mm: Drop redundant addr increment in set_huge_pte_at()
Breno Leitao (9):
arm64: Mandate VMAP_STACK
arm64: efi: Remove CONFIG_VMAP_STACK check
arm64: Remove CONFIG_VMAP_STACK conditionals from THREAD_SHIFT and THREAD_ALIGN
arm64: remove CONFIG_VMAP_STACK conditionals from irq stack setup
arm64: remove CONFIG_VMAP_STACK conditionals from traps overflow stack
arm64: remove CONFIG_VMAP_STACK checks from stacktrace overflow logic
arm64: remove CONFIG_VMAP_STACK checks from SDEI stack handling
arm64: remove CONFIG_VMAP_STACK checks from entry code
arm64: Mark kernel as tainted on SAE and SError panic
Catalin Marinas (4):
arm64: cpufeature: Introduce MATCH_ALL_EARLY_CPUS capability type
arm64: Kconfig: Keep selects somewhat alphabetically ordered
Merge branches 'for-next/livepatch', 'for-next/user-contig-bbml2', 'for-next/misc', 'for-next/acpi', 'for-next/debug-entry', 'for-next/feat_mte_tagged_far', 'for-next/kselftest', 'for-next/mdscr-cleanup' and 'for-next/vmap-stack', remote-tracking branch 'arm64/for-next/perf' into for-next/core
Merge branch 'for-next/feat_mte_store_only' into for-next/core
Colin Ian King (1):
perf: imx9_perf: make the read-only array mask static const
Dylan Hatch (1):
arm64/module: Use text-poke API for late relocations.
Jeremy Linton (1):
arm64/gcs: task_gcs_el0_enable() should use passed task
Junhao He (5):
drivers/perf: hisi: Simplify the probe process for each DDRC version
drivers/perf: hisi: Add support for HiSilicon DDRC v3 PMU driver
drivers/perf: hisi: Use ACPI driver_data to retrieve SLLC PMU information
drivers/perf: hisi: Add support for HiSilicon SLLC v3 PMU driver
drivers/perf: hisi: Relax the event number check of v2 PMUs
Kevin Brodsky (1):
arm64: signal: Remove ISB when resetting POR_EL0
Leo Yan (1):
perf: arm_spe: Relax period restriction
Li Chen (2):
ACPI: Return -ENODEV from acpi_parse_spcr() when SPCR support is disabled
ACPI: Suppress misleading SPCR console message when SPCR table is absent
Mark Brown (11):
kselftest/arm64: Convert tpidr2 test to use kselftest.h
kselftest/arm64: Fix check for setting new VLs in sve-ptrace
kselftest/arm64: Fix test for streaming FPSIMD write in sve-ptrace
kselftest/arm64: Specify SVE data when testing VL set in sve-ptrace
arm64/gcs: Don't call gcs_free() when releasing task_struct
kselftest/arm4: Provide local defines for AT_HWCAP3
kselftest/arm64: Allow sve-ptrace to run on SME only systems
kselftest/arm64: Test FPSIMD format data writes via NT_ARM_SVE in fp-ptrace
kselftest/arm64: Test SME on SME only systems in fp-ptrace
kselftest/arm64: Fix SVE write data generation for SME only systems
kselftest/arm64: Handle attempts to disable SM on SME only systems
Mark Rutland (1):
arm64: stacktrace: Check kretprobe_find_ret_addr() return value
Masahiro Yamada (2):
arm64: pi: use 'targets' instead of extra-y in Makefile
arm64: fix unnecessary rebuilding when CONFIG_DEBUG_EFI=y
MikoĊaj Lenczewski (3):
arm64: Add BBM Level 2 cpu feature
iommu/arm: Add BBM Level 2 smmu feature
arm64/mm: Elide tlbi in contpte_convert() under BBML2
Rob Herring (Arm) (1):
perf: arm_pmuv3: Add support for the Branch Record Buffer Extension (BRBE)
Robin Murphy (4):
perf/arm-ni: Set initial IRQ affinity
perf/arm-cmn: Reduce stack usage during discovery
perf/arm: Add missing .suppress_bind_attrs
perf/arm-ni: Consolidate CPU affinity handling
Shouping Wang (1):
perf/arm-ni: Support sharing IRQs within an NI instance
Song Liu (2):
arm64: stacktrace: Implement arch_stack_walk_reliable()
arm64: Implement HAVE_LIVEPATCH
Xavier Xia (1):
arm64/mm: Optimize loop to reduce redundant operations of contpte_ptep_get
Yeoreum Yun (18):
arm64/cpufeature: Add FEAT_MTE_TAGGED_FAR feature
arm64: Report address tag when FEAT_MTE_TAGGED_FAR is supported
KVM: arm64: Expose FEAT_MTE_TAGGED_FAR feature to guest
kselftest/arm64: Add MTE_FAR hwcap test
kselftest/arm64/mte: Register mte signal handler with SA_EXPOSE_TAGBITS
kselftest/arm64/mte: Check MTE_FAR feature is supported
kselftest/arm64/mte: Add address tag related macro and function
kselftest/arm64/mte: Add verification for address tag in signal handler
kselftest/arm64/mte: Refactor check_mmap_option test
kselftest/arm64/mte: Add mtefar tests on check_mmap_options
arm64/cpufeature: Add MTE_STORE_ONLY feature
prctl: Introduce PR_MTE_STORE_ONLY
arm64/kernel: Support store-only mte tag check
arm64/hwcaps: Add MTE_STORE_ONLY hwcaps
KVM: arm64: Expose MTE_STORE_ONLY feature to guest
kselftest/arm64/abi: Add MTE_STORE_ONLY feature hwcap test
kselftest/arm64/mte: Preparation for mte store only test
kselftest/arm64/mte: Add MTE_STORE_ONLY testcases
Yicong Yang (3):
watchdog/perf: Provide function for adjusting the event period
arm64/watchdog_hld: Add a cpufreq notifier for update watchdog thresh
drivers/perf: hisi: Support PMUs with no interrupt
Zhiyuan Dai (1):
perf/arm-cmn: Broaden module description for wider interconnect support
Documentation/arch/arm64/booting.rst | 21 +
Documentation/arch/arm64/elf_hwcaps.rst | 6 +
Documentation/arch/arm64/tagged-pointers.rst | 11 +-
arch/arm64/Kconfig | 4 +
arch/arm64/include/asm/assembler.h | 4 +-
arch/arm64/include/asm/cpufeature.h | 28 +
arch/arm64/include/asm/debug-monitors.h | 40 +-
arch/arm64/include/asm/el2_setup.h | 71 +-
arch/arm64/include/asm/exception.h | 14 +-
arch/arm64/include/asm/gcs.h | 2 +-
arch/arm64/include/asm/hwcap.h | 2 +
arch/arm64/include/asm/kgdb.h | 12 +
arch/arm64/include/asm/kprobes.h | 8 +
arch/arm64/include/asm/kvm_host.h | 2 +
arch/arm64/include/asm/memory.h | 6 +-
arch/arm64/include/asm/processor.h | 2 +
arch/arm64/include/asm/stacktrace.h | 6 +-
arch/arm64/include/asm/sysreg.h | 16 +-
arch/arm64/include/asm/system_misc.h | 4 -
arch/arm64/include/asm/thread_info.h | 5 +-
arch/arm64/include/asm/traps.h | 6 +
arch/arm64/include/asm/uprobes.h | 11 +
arch/arm64/include/uapi/asm/hwcap.h | 2 +
arch/arm64/kernel/Makefile | 2 +-
arch/arm64/kernel/acpi.c | 10 +-
arch/arm64/kernel/cpufeature.c | 116 ++-
arch/arm64/kernel/cpuinfo.c | 2 +
arch/arm64/kernel/debug-monitors.c | 277 +++----
arch/arm64/kernel/efi.c | 5 -
arch/arm64/kernel/entry-common.c | 156 +++-
arch/arm64/kernel/entry.S | 6 -
arch/arm64/kernel/hw_breakpoint.c | 60 +-
arch/arm64/kernel/irq.c | 13 -
arch/arm64/kernel/kgdb.c | 39 +-
arch/arm64/kernel/module.c | 101 ++-
arch/arm64/kernel/mte.c | 11 +-
arch/arm64/kernel/pi/Makefile | 2 +-
arch/arm64/kernel/probes/kprobes.c | 31 +-
arch/arm64/kernel/probes/kprobes_trampoline.S | 2 +-
arch/arm64/kernel/probes/uprobes.c | 24 +-
arch/arm64/kernel/process.c | 13 +-
arch/arm64/kernel/sdei.c | 8 +-
arch/arm64/kernel/signal.c | 7 +-
arch/arm64/kernel/stacktrace.c | 59 +-
arch/arm64/kernel/traps.c | 84 +-
arch/arm64/kernel/watchdog_hld.c | 58 ++
arch/arm64/kvm/debug.c | 4 +
arch/arm64/kvm/hyp/nvhe/debug-sr.c | 32 +
arch/arm64/kvm/hyp/nvhe/switch.c | 2 +-
arch/arm64/kvm/sys_regs.c | 11 +-
arch/arm64/mm/contpte.c | 211 ++++-
arch/arm64/mm/fault.c | 83 +-
arch/arm64/mm/gcs.c | 6 -
arch/arm64/mm/hugetlbpage.c | 2 +-
arch/arm64/mm/proc.S | 2 +-
arch/arm64/tools/cpucaps | 3 +
arch/arm64/tools/sysreg | 132 +++
drivers/firmware/efi/libstub/Makefile.zboot | 2 +-
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 3 +
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 3 +
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 2 +
drivers/perf/Kconfig | 11 +
drivers/perf/Makefile | 1 +
drivers/perf/arm-cmn.c | 20 +-
drivers/perf/arm-ni.c | 153 ++--
drivers/perf/arm_brbe.c | 805 +++++++++++++++++++
drivers/perf/arm_brbe.h | 47 ++
drivers/perf/arm_pmu.c | 16 +-
drivers/perf/arm_pmuv3.c | 107 ++-
drivers/perf/arm_spe_pmu.c | 18 +-
drivers/perf/cxl_pmu.c | 12 +-
drivers/perf/fsl_imx9_ddr_perf.c | 8 +-
drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c | 354 ++++----
drivers/perf/hisilicon/hisi_uncore_hha_pmu.c | 6 +-
drivers/perf/hisilicon/hisi_uncore_pa_pmu.c | 2 +-
drivers/perf/hisilicon/hisi_uncore_pmu.c | 11 +-
drivers/perf/hisilicon/hisi_uncore_pmu.h | 2 +
drivers/perf/hisilicon/hisi_uncore_sllc_pmu.c | 220 +++--
include/linux/acpi.h | 2 +-
include/linux/nmi.h | 2 +
include/linux/perf/arm_pmu.h | 8 +
include/uapi/linux/prctl.h | 2 +
kernel/watchdog_perf.c | 22 +
tools/testing/selftests/arm64/abi/Makefile | 2 +-
tools/testing/selftests/arm64/abi/hwcap.c | 16 +
tools/testing/selftests/arm64/abi/tpidr2.c | 140 +---
tools/testing/selftests/arm64/fp/fp-ptrace.c | 77 +-
tools/testing/selftests/arm64/fp/sve-ptrace.c | 12 +-
.../selftests/arm64/mte/check_buffer_fill.c | 12 +-
.../selftests/arm64/mte/check_child_memory.c | 8 +-
.../selftests/arm64/mte/check_hugetlb_options.c | 10 +-
.../selftests/arm64/mte/check_ksm_options.c | 6 +-
.../selftests/arm64/mte/check_mmap_options.c | 890 +++++++++++++++++++--
tools/testing/selftests/arm64/mte/check_prctl.c | 29 +-
.../selftests/arm64/mte/check_tags_inclusion.c | 10 +-
tools/testing/selftests/arm64/mte/check_user_mem.c | 4 +-
.../testing/selftests/arm64/mte/mte_common_util.c | 84 +-
.../testing/selftests/arm64/mte/mte_common_util.h | 9 +-
tools/testing/selftests/arm64/mte/mte_def.h | 8 +
.../testing/selftests/kvm/arm64/debug-exceptions.c | 4 +-
100 files changed, 3768 insertions(+), 1249 deletions(-)
create mode 100644 drivers/perf/arm_brbe.c
create mode 100644 drivers/perf/arm_brbe.h
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