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Date: Mon, 6 May 2019 19:11:22 +0100
From: Will Deacon <will.deacon@....com>
To: torvalds@...ux-foundation.org
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
catalin.marinas@....com, tglx@...utronix.de, marc.zyngier@....com,
jpoimboe@...hat.com
Subject: [GIT PULL] arm64: updates for 5.2
Hi Linus,
Please pull these arm64 updates for 5.2. As per usual, there are details
in the tag, but it's worth noting that we're including the core
"mitigations=" command-line code here from -tip so that we could develop
arm64 support on top of adding support for the "cpu/vulnerabilities"
directory under sysfs.
There is a straightforward conflict with -tip in the mm/kasan Makefile,
which just involves replacing a '-pg' with '$(CC_FLAGS_FTRACE)'. I also
ended up applying a duplicate of 045afc24124d ("arm64: futex: Fix
FUTEX_WAKE_OP atomic ops with non-zero result value") as 84ff7a09c371,
which I'm not very pleased about. The fix in mainline was based on -rc4,
so the alternative would've been merging all of that in, which seemed a
lot messier. In future, we're going to avoid fast-forwarding our fixes
branch with each -rc, so this shouldn't happen again.
Cheers,
Will
--->8
The following changes since commit 79a3aaa7b82e3106be97842dedfd8429248896e6:
Linux 5.1-rc3 (2019-03-31 14:39:29 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git tags/arm64-upstream
for you to fetch changes up to b33f908811b7627015238e0dee9baf2b4c9d720d:
Merge branch 'for-next/perf' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into for-next/core (2019-05-03 10:18:08 +0100)
----------------------------------------------------------------
arm64 updates for 5.2
Mostly just incremental improvements here:
- Introduce AT_HWCAP2 for advertising CPU features to userspace
- Expose SVE2 availability to userspace
- Support for "data cache clean to point of deep persistence" (DC PODP)
- Honour "mitigations=off" on the cmdline and advertise status via sysfs
- CPU timer erratum workaround (Neoverse-N1 #1188873)
- Introduce perf PMU driver for the SMMUv3 performance counters
- Add config option to disable the kuser helpers page for AArch32 tasks
- Futex modifications to ensure liveness under contention
- Rework debug exception handling to seperate kernel and user handlers
- Non-critical fixes and cleanup
----------------------------------------------------------------
Alexandru Elisei (1):
arm64: Use defines instead of magic numbers
Andrew Murray (6):
arm64: HWCAP: add support for AT_HWCAP2
arm64: HWCAP: encapsulate elf_hwcap
arm64: Handle trapped DC CVADP
arm64: Expose DC CVADP to userspace
arm64: add CVADP support to the cache maintenance helper
arm64: Advertise ARM64_HAS_DCPODP cpu feature
Anshuman Khandual (1):
KVM: ARM: Remove pgtable page standard functions from stage-2 page tables
Arun KS (1):
arm64: Fix size of __early_cpu_boot_status
Boyang Zhou (1):
arm64: mmap: Ensure file offset is treated as unsigned
Dave Martin (1):
arm64: Expose SVE2 features for userspace
Jean-Philippe Brucker (2):
arm64: Clear OSDLR_EL1 on CPU boot
arm64: Save and restore OSDLR_EL1 across suspend/resume
Jeremy Linton (6):
arm64: Provide a command line to disable spectre_v2 mitigation
arm64: add sysfs vulnerability show for meltdown
arm64: Always enable spectre-v2 vulnerability detection
arm64: add sysfs vulnerability show for spectre-v2
arm64: Always enable ssb vulnerability detection
arm64: add sysfs vulnerability show for speculative store bypass
Josh Poimboeuf (6):
cpu/speculation: Add 'mitigations=' cmdline option
x86/speculation: Support 'mitigations=' cmdline option
powerpc/speculation: Support 'mitigations=' cmdline option
s390/speculation: Support 'mitigations=' cmdline option
arm64/speculation: Support 'mitigations=' cmdline option
Documentation: Add ARM64 to kernel-parameters.rst
Kees Cook (1):
arm64: sysreg: Make mrs_s and msr_s macros work with Clang and LTO
Kefeng Wang (1):
ACPI/IORT: Reject platform device creation on NUMA node mapping failure
Marc Zyngier (13):
arm64: Advertise mitigation of Spectre-v2, or lack thereof
arm64: Use firmware to detect CPUs that are not affected by Spectre-v2
arm64: Restrict ARM64_ERRATUM_1188873 mitigation to AArch32
arm64: Make ARM64_ERRATUM_1188873 depend on COMPAT
arm64: Add part number for Neoverse N1
arm64: Apply ARM64_ERRATUM_1188873 to Neoverse-N1
ARM: vdso: Remove dependency with the arch_timer driver internals
watchdog/sbsa: Use arch_timer_read_counter instead of arch_counter_get_cntvct
arm64: Use arch_timer_read_counter instead of arch_counter_get_cntvct
clocksource/arm_arch_timer: Direcly assign set_next_event workaround
clocksource/arm_arch_timer: Drop use of static key in arch_timer_reg_read_stable
clocksource/arm_arch_timer: Remove use of workaround static key
clocksource/arm_arch_timer: Use arch_timer_read_counter to access stable counters
Mark Rutland (1):
arm64: instrument smp_{load_acquire,store_release}
Masahiro Yamada (2):
arm64: vdso: fix and clean-up Makefile
arm64: vdso: use $(LD) instead of $(CC) to link VDSO
Masami Hiramatsu (1):
arm64: ptrace: Add function argument access API
Matteo Croce (1):
arm64/vdso: don't leak kernel addresses
Mian Yousaf Kaukab (2):
arm64: Add sysfs vulnerability show for spectre-v1
arm64: enable generic CPU vulnerabilites support
Miles Chen (2):
arm64: setup min_low_pfn
arm64: mm: check virtual addr in virt_to_page() if CONFIG_DEBUG_VIRTUAL=y
Muchun Song (1):
arm64: mm: fix incorrect assignment of 'max_mapnr'
Neil Leeder (2):
ACPI/IORT: Add support for PMCG
perf/smmuv3: Add arm64 smmuv3 pmu driver
Nishad Kamdar (1):
arm64: Use the correct style for SPDX License Identifier
Qian Cai (3):
arm64/mm: fix kernel-doc comments
arm64: Fix compiler warning from pte_unmap() with -Wunused-but-set-variable
arm64: mm: Remove pte_unmap_nested()
Raphael Gault (1):
arm64: perf_event: Remove wrongfully used inline
Robin Murphy (2):
perf/arm-cci: Remove broken race mitigation
perf/arm-ccn: Clean up CPU hotplug handling
Shameer Kolothum (2):
perf/smmuv3: Add MSI irq support
perf/smmuv3: Enable HiSilicon Erratum 162001800 quirk
Torsten Duwe (3):
arm64: Makefile: Replace -pg with CC_FLAGS_FTRACE
efi/arm/arm64: Makefile: Replace -pg with CC_FLAGS_FTRACE
kasan: Makefile: Replace -pg with CC_FLAGS_FTRACE
Vincenzo Frascino (7):
arm64: compat: Reduce address limit
arm64: vdso: Fix clock_getres() for CLOCK_REALTIME
arm64: compat: Alloc separate pages for vectors and sigpage
arm64: compat: Split kuser32
arm64: compat: Refactor aarch32_alloc_vdso_pages()
arm64: compat: Add KUSER_HELPERS config option
arm64: compat: Reduce address limit for 64K pages
Wen Yang (1):
arm64: cpu_ops: fix a leaked reference by adding missing of_node_put
Will Deacon (25):
arm64: mm: Make show_pte() a static function
arm64: mm: Ensure we ignore the initrd if it is placed out of range
arm64: debug: Remove unused return value from do_debug_exception()
arm64: debug: Rename addr parameter for non-watchpoint exception hooks
arm64: debug: Remove meaningless comment
arm64: debug: Separate debug hooks based on target exception level
arm64: kprobes: Avoid calling kprobes debug handlers explicitly
arm64: debug: Remove redundant user_mode(regs) checks from debug handlers
arm64: probes: Move magic BRK values into brk-imm.h
arm64: debug: Clean up brk_handler()
arm64: mm: Consolidate early page table allocation
arm64: Kconfig: Make CONFIG_COMPAT a menuconfig entry
Merge branch 'core/speculation' of git://git.kernel.org/.../tip/tip into for-next/mitigations
arm64: futex: Fix FUTEX_WAKE_OP atomic ops with non-zero result value
locking/futex: Allow low-level atomic operations to return -EAGAIN
arm64: futex: Bound number of LDXR/STXR loops in FUTEX_WAKE_OP
arm64: futex: Avoid copying out uninitialised stack in failed cmpxchg()
futex: Update comments and docs about return values of arch futex code
arm64: Kconfig: Tidy up errata workaround help text
arm64: arch_timer: Ensure counter register reads occur with seqlock held
arm64: ssbs: Don't treat CPUs with SSBS as unaffected by SSB
Merge branch 'for-next/futex' of git://git.kernel.org/.../arm64/linux into for-next/core
Merge branch 'for-next/mitigations' of git://git.kernel.org/.../arm64/linux into for-next/core
Merge branch 'for-next/timers' of git://git.kernel.org/.../arm64/linux into for-next/core
Merge branch 'for-next/perf' of git://git.kernel.org/.../will/linux into for-next/core
Xiongfeng Wang (1):
firmware: arm_sdei: Prohibit probing in '_sdei_handler'
Yu Zhao (3):
arm64: mm: use appropriate ctors for page tables
arm64: mm: don't call page table ctors for init_mm
arm64: mm: enable per pmd page table lock
Documentation/admin-guide/kernel-parameters.rst | 1 +
Documentation/admin-guide/kernel-parameters.txt | 42 +-
Documentation/arm64/cpu-feature-registers.txt | 16 +
Documentation/arm64/elf_hwcaps.txt | 41 +-
Documentation/arm64/silicon-errata.txt | 2 +
Documentation/arm64/sve.txt | 17 +
Documentation/robust-futexes.txt | 3 +-
arch/arm/include/asm/arch_timer.h | 18 +-
arch/arm/include/asm/cp15.h | 2 +
arch/arm/include/asm/stage2_pgtable.h | 4 +-
arch/arm/vdso/vgettimeofday.c | 5 +-
arch/arm64/Kconfig | 132 ++--
arch/arm64/boot/dts/mediatek/mt2712-pinfunc.h | 2 +-
arch/arm64/crypto/aes-ce-ccm-glue.c | 2 +-
arch/arm64/crypto/aes-neonbs-glue.c | 2 +-
arch/arm64/crypto/chacha-neon-glue.c | 2 +-
arch/arm64/crypto/crct10dif-ce-glue.c | 4 +-
arch/arm64/crypto/ghash-ce-glue.c | 8 +-
arch/arm64/crypto/nhpoly1305-neon-glue.c | 2 +-
arch/arm64/crypto/sha256-glue.c | 4 +-
arch/arm64/include/asm/arch_timer.h | 119 +++-
arch/arm64/include/asm/assembler.h | 8 +-
arch/arm64/include/asm/barrier.h | 24 +-
arch/arm64/include/asm/brk-imm.h | 5 +
arch/arm64/include/asm/cpucaps.h | 3 +-
arch/arm64/include/asm/cpufeature.h | 25 +-
arch/arm64/include/asm/cputype.h | 2 +
arch/arm64/include/asm/debug-monitors.h | 25 +-
arch/arm64/include/asm/elf.h | 6 +-
arch/arm64/include/asm/esr.h | 7 +-
arch/arm64/include/asm/futex.h | 63 +-
arch/arm64/include/asm/hwcap.h | 60 +-
arch/arm64/include/asm/irqflags.h | 8 +-
arch/arm64/include/asm/kprobes.h | 2 -
arch/arm64/include/asm/kvm_hyp.h | 4 +-
arch/arm64/include/asm/memory.h | 2 +-
arch/arm64/include/asm/pgalloc.h | 12 +-
arch/arm64/include/asm/pgtable.h | 5 +-
arch/arm64/include/asm/pointer_auth.h | 2 +-
arch/arm64/include/asm/processor.h | 8 +
arch/arm64/include/asm/ptrace.h | 22 +
arch/arm64/include/asm/sdei.h | 2 +-
arch/arm64/include/asm/signal32.h | 2 -
arch/arm64/include/asm/stage2_pgtable.h | 4 +-
arch/arm64/include/asm/sysreg.h | 59 +-
arch/arm64/include/asm/system_misc.h | 1 -
arch/arm64/include/asm/tlb.h | 5 +-
arch/arm64/include/asm/vdso_datapage.h | 1 +
arch/arm64/include/asm/vmap_stack.h | 2 +-
arch/arm64/include/uapi/asm/hwcap.h | 13 +-
arch/arm64/kernel/Makefile | 11 +-
arch/arm64/kernel/asm-offsets.c | 2 +-
arch/arm64/kernel/cpu_errata.c | 256 +++++--
arch/arm64/kernel/cpu_ops.c | 1 +
arch/arm64/kernel/cpufeature.c | 193 ++++--
arch/arm64/kernel/cpuinfo.c | 9 +-
arch/arm64/kernel/debug-monitors.c | 115 ++--
arch/arm64/kernel/entry.S | 19 +-
arch/arm64/kernel/fpsimd.c | 4 +-
arch/arm64/kernel/head.S | 12 +-
arch/arm64/kernel/kgdb.c | 30 +-
arch/arm64/kernel/kuser32.S | 66 +-
arch/arm64/kernel/perf_event.c | 4 +-
arch/arm64/kernel/probes/kprobes.c | 22 +-
arch/arm64/kernel/probes/uprobes.c | 19 +-
arch/arm64/kernel/signal32.c | 3 +-
arch/arm64/kernel/sigreturn32.S | 46 ++
arch/arm64/kernel/sys.c | 2 +-
arch/arm64/kernel/traps.c | 33 +-
arch/arm64/kernel/vdso.c | 139 +++-
arch/arm64/kernel/vdso/Makefile | 19 +-
arch/arm64/kernel/vdso/gettimeofday.S | 22 +-
arch/arm64/lib/Makefile | 2 +-
arch/arm64/mm/fault.c | 16 +-
arch/arm64/mm/init.c | 5 +-
arch/arm64/mm/mmu.c | 47 +-
arch/arm64/mm/numa.c | 25 +-
arch/arm64/mm/proc.S | 34 +-
arch/powerpc/kernel/security.c | 6 +-
arch/powerpc/kernel/setup_64.c | 2 +-
arch/s390/kernel/nospec-branch.c | 3 +-
arch/x86/kernel/cpu/bugs.c | 11 +-
arch/x86/mm/pti.c | 4 +-
drivers/acpi/arm64/iort.c | 150 +++-
drivers/clocksource/arm_arch_timer.c | 138 ++--
drivers/firmware/arm_sdei.c | 3 +
drivers/firmware/efi/libstub/Makefile | 6 +-
drivers/perf/Kconfig | 9 +
drivers/perf/Makefile | 1 +
drivers/perf/arm-cci.c | 21 +-
drivers/perf/arm-ccn.c | 25 +-
drivers/perf/arm_smmuv3_pmu.c | 865 ++++++++++++++++++++++++
drivers/watchdog/sbsa_gwdt.c | 2 +-
include/asm-generic/futex.h | 8 +-
include/linux/acpi_iort.h | 8 +
include/linux/cpu.h | 24 +
kernel/cpu.c | 15 +
kernel/futex.c | 188 +++--
mm/kasan/Makefile | 6 +-
virt/kvm/arm/mmu.c | 2 +-
100 files changed, 2624 insertions(+), 839 deletions(-)
create mode 100644 arch/arm64/kernel/sigreturn32.S
create mode 100644 drivers/perf/arm_smmuv3_pmu.c
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