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Subject[GIT PULL] arm64 updates for 5.7
Hi Linus,

Please pull the arm64 updates below. The bulk is in-kernel pointer
authentication, activity monitors and lots of asm symbol annotations. I
also queued the sys_mremap() patch commenting the asymmetry in the
address untagging.

Thanks.

The following changes since commit f8788d86ab28f61f7b46eb6be375f8a726783636:

Linux 5.6-rc3 (2020-02-23 16:17:42 -0800)

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 b2a84de2a2deb76a6a51609845341f508c518c03:

mm/mremap: Add comment explaining the untagging behaviour of mremap() (2020-03-26 11:28:57 +0000)

----------------------------------------------------------------
arm64 updates for 5.7:

- In-kernel Pointer Authentication support (previously only offered to
user space).

- ARM Activity Monitors (AMU) extension support allowing better CPU
utilisation numbers for the scheduler (frequency invariance).

- Memory hot-remove support for arm64.

- Lots of asm annotations (SYM_*) in preparation for the in-kernel
Branch Target Identification (BTI) support.

- arm64 perf updates: ARMv8.5-PMU 64-bit counters, refactoring the PMU
init callbacks, support for new DT compatibles.

- IPv6 header checksum optimisation.

- Fixes: SDEI (software delegated exception interface) double-lock on
hibernate with shared events.

- Minor clean-ups and refactoring: cpu_ops accessor, cpu_do_switch_mm()
converted to C, cpufeature finalisation helper.

- sys_mremap() comment explaining the asymmetric address untagging
behaviour.

----------------------------------------------------------------
Amit Daniel Kachhap (8):
arm64: cpufeature: Fix meta-capability cpufeature check
arm64: ptrauth: Add bootup/runtime flags for __cpu_setup
arm64: cpufeature: Move cpu capability helpers inside C file
arm64: initialize ptrauth keys for kernel booting task
arm64: mask PAC bits of __builtin_return_address
arm64: __show_regs: strip PAC from lr in printk
arm64: suspend: restore the kernel ptrauth keys
lkdtm: arm64: test kernel pointer authentication

Andrew Murray (3):
arm64: cpufeature: Extract capped perfmon fields
KVM: arm64: limit PMU version to PMUv3 for ARMv8.1
arm64: perf: Add support for ARMv8.5-PMU 64-bit counters

Anshuman Khandual (2):
arm64/mm: Hold memory hotplug lock while walking for kernel page table dump
arm64/mm: Enable memory hot remove

Catalin Marinas (4):
Merge branches 'for-next/memory-hotremove', 'for-next/arm_sdei', 'for-next/amu', 'for-next/final-cap-helper', 'for-next/cpu_ops-cleanup', 'for-next/misc' and 'for-next/perf' into for-next/core
Merge branch 'for-next/asm-annotations' into for-next/core
Merge branch 'for-next/asm-cleanups' into for-next/core
Merge branch 'for-next/kernel-ptrauth' into for-next/core

Gavin Shan (4):
arm64/kernel: Simplify __cpu_up() by bailing out early
arm64: Declare ACPI parking protocol CPU operation if needed
arm64: Rename cpu_read_ops() to init_cpu_ops()
arm64: Introduce get_cpu_ops() helper function

Ionela Voinescu (7):
arm64: add support for the AMU extension v1
arm64: trap to EL1 accesses to AMU counters from EL0
arm64/kvm: disable access to AMU registers from kvm guests
Documentation: arm64: document support for the AMU extension
cpufreq: add function to get the hardware max frequency
arm64: use activity monitors for frequency invariance
clocksource/drivers/arm_arch_timer: validate arch_timer_rate

James Morse (2):
firmware: arm_sdei: fix double-lock on hibernate with shared events
firmware: arm_sdei: Use cpus_read_lock() to avoid races with cpuhp

Kristina Martsenko (7):
arm64: cpufeature: add pointer auth meta-capabilities
arm64: rename ptrauth key structures to be user-specific
arm64: install user ptrauth keys at kernel exit time
arm64: cpufeature: handle conflicts based on capability
arm64: enable ptrauth earlier
arm64: initialize and switch ptrauth kernel keys
arm64: compile the kernel with ptrauth return address signing

Kunihiko Hayashi (1):
arm64: entry-ftrace.S: Fix missing argument for CONFIG_FUNCTION_GRAPH_TRACER=y

Li Tao (1):
arm64: kexec_file: Fixed code style.

Liguang Zhang (2):
firmware: arm_sdei: fix possible double-lock on hibernate error path
firmware: arm_sdei: clean up sdei_event_create()

Mark Brown (18):
arm64: crypto: Modernize some extra assembly annotations
arm64: crypto: Modernize names for AES function macros
arm64: entry: Annotate vector table and handlers as code
arm64: entry: Annotate ret_from_fork as code
arm64: entry: Additional annotation conversions for entry.S
arm64: entry-ftrace.S: Convert to modern annotations for assembly functions
arm64: ftrace: Correct annotation of ftrace_caller assembly
arm64: ftrace: Modernise annotation of return_to_handler
arm64: head.S: Convert to modern annotations for assembly functions
arm64: head: Annotate stext and preserve_boot_args as code
arm64: kernel: Convert to modern annotations for assembly data
arm64: kvm: Annotate assembly using modern annoations
arm64: kvm: Modernize annotation for __bp_harden_hyp_vecs
arm64: kvm: Modernize __smccc_workaround_1_smc_start annotations
arm64: sdei: Annotate SDEI entry points using new style annotations
arm64: vdso: Convert to modern assembler annotations
arm64: vdso32: Convert to modern assembler annotations
arm64: head: Convert install_el2_stub to SYM_INNER_LABEL

Mark Rutland (5):
arm64: mm: convert cpu_do_switch_mm() to C
arm64: entry: unmask IRQ in el0_sp()
arm64: cpufeature: add cpus_have_final_cap()
arm64: kvm: hyp: use cpus_have_final_cap()
arm64: unwind: strip PAC from kernel addresses

Masahiro Yamada (1):
arm64: efi: add efi-entry.o to targets instead of extra-$(CONFIG_EFI)

Nathan Chancellor (1):
arm64: Mark call_smc_arch_workaround_1 as __maybe_unused

Nick Desaulniers (1):
arm64: Kconfig: verify binutils support for ARM64_PTR_AUTH

Randy Dunlap (1):
arm64: fix NUMA Kconfig typos

Remi Denis-Courmont (3):
arm64: remove gratuitious/stray .ltorg stanzas
arm64: use mov_q instead of literal ldr
arm64: move kimage_vaddr to .rodata

Robin Murphy (4):
arm64: perf: Refactor PMU init callbacks
arm64: perf: Support new DT compatibles
arm64: csum: Optimise IPv6 header checksum
arm64: perf: Clean up enable/disable calls

Takashi Iwai (1):
perf: arm-ccn: Use scnprintf() for robustness

Vincenzo Frascino (1):
kconfig: Add support for 'as-option'

Will Deacon (2):
arm64: Update comment for ASID() macro
mm/mremap: Add comment explaining the untagging behaviour of mremap()

Zheng Wei (1):
arm64: add blank after 'if'

glider@google.com (1):
arm64: define __alloc_zeroed_user_highpage

luanshi (1):
perf: arm_spe: Remove unnecessary zero check on 'nr_pages'

王程刚 (1):
arch/arm64: fix typo in a comment

韩科才 (2):
arm64: fix spelling mistake "ca not" -> "cannot"
arm64: remove redundant blank for '=' operator

Documentation/arm64/amu.rst | 112 +++++++++
Documentation/arm64/booting.rst | 14 ++
Documentation/arm64/index.rst | 1 +
arch/arm64/Kconfig | 69 +++++-
arch/arm64/Makefile | 11 +
arch/arm64/crypto/aes-ce.S | 4 +-
arch/arm64/crypto/aes-modes.S | 48 ++--
arch/arm64/crypto/aes-neon.S | 4 +-
arch/arm64/crypto/ghash-ce-core.S | 16 +-
arch/arm64/include/asm/asm_pointer_auth.h | 65 +++++
arch/arm64/include/asm/assembler.h | 16 +-
arch/arm64/include/asm/checksum.h | 7 +-
arch/arm64/include/asm/compiler.h | 24 ++
arch/arm64/include/asm/cpu_ops.h | 8 +-
arch/arm64/include/asm/cpucaps.h | 5 +-
arch/arm64/include/asm/cpufeature.h | 125 +++++++---
arch/arm64/include/asm/esr.h | 2 +-
arch/arm64/include/asm/kvm_arm.h | 1 +
arch/arm64/include/asm/kvm_asm.h | 4 +
arch/arm64/include/asm/kvm_mmu.h | 9 +-
arch/arm64/include/asm/memory.h | 1 +
arch/arm64/include/asm/mmu.h | 10 +-
arch/arm64/include/asm/mmu_context.h | 2 +
arch/arm64/include/asm/page.h | 4 +
arch/arm64/include/asm/perf_event.h | 3 +-
arch/arm64/include/asm/pointer_auth.h | 50 ++--
arch/arm64/include/asm/proc-fns.h | 2 -
arch/arm64/include/asm/processor.h | 3 +-
arch/arm64/include/asm/smp.h | 12 +
arch/arm64/include/asm/stackprotector.h | 5 +
arch/arm64/include/asm/sysreg.h | 48 ++++
arch/arm64/include/asm/topology.h | 9 +
arch/arm64/kernel/Makefile | 2 +-
arch/arm64/kernel/armv8_deprecated.c | 2 +-
arch/arm64/kernel/asm-offsets.c | 16 ++
arch/arm64/kernel/cpu-reset.S | 2 +-
arch/arm64/kernel/cpu_errata.c | 18 +-
arch/arm64/kernel/cpu_ops.c | 11 +-
arch/arm64/kernel/cpufeature.c | 165 +++++++++++--
arch/arm64/kernel/cpuidle.c | 9 +-
arch/arm64/kernel/entry-common.c | 2 +-
arch/arm64/kernel/entry-ftrace.S | 48 ++--
arch/arm64/kernel/entry.S | 121 +++++-----
arch/arm64/kernel/head.S | 86 +++----
arch/arm64/kernel/hibernate-asm.S | 2 -
arch/arm64/kernel/hyp-stub.S | 2 +-
arch/arm64/kernel/machine_kexec_file.c | 2 +-
arch/arm64/kernel/perf_event.c | 338 +++++++++++++-------------
arch/arm64/kernel/pointer_auth.c | 7 +-
arch/arm64/kernel/process.c | 5 +-
arch/arm64/kernel/ptrace.c | 16 +-
arch/arm64/kernel/relocate_kernel.S | 4 +-
arch/arm64/kernel/setup.c | 8 +-
arch/arm64/kernel/sleep.S | 2 +
arch/arm64/kernel/smp.c | 159 +++++++------
arch/arm64/kernel/stacktrace.c | 5 +-
arch/arm64/kernel/topology.c | 180 ++++++++++++++
arch/arm64/kernel/vdso/sigreturn.S | 4 +-
arch/arm64/kernel/vdso32/sigreturn.S | 23 +-
arch/arm64/kvm/hyp-init.S | 18 +-
arch/arm64/kvm/hyp.S | 4 +-
arch/arm64/kvm/hyp/fpsimd.S | 8 +-
arch/arm64/kvm/hyp/hyp-entry.S | 27 ++-
arch/arm64/kvm/hyp/switch.c | 28 ++-
arch/arm64/kvm/hyp/sysreg-sr.c | 8 +-
arch/arm64/kvm/hyp/tlb.c | 8 +-
arch/arm64/kvm/sys_regs.c | 103 +++++++-
arch/arm64/lib/csum.c | 27 +++
arch/arm64/lib/strcmp.S | 2 +-
arch/arm64/mm/context.c | 32 ++-
arch/arm64/mm/mmu.c | 379 +++++++++++++++++++++++++++++-
arch/arm64/mm/proc.S | 104 ++++----
arch/arm64/mm/ptdump_debugfs.c | 4 +
drivers/base/arch_topology.c | 12 +
drivers/clocksource/arm_arch_timer.c | 18 +-
drivers/cpufreq/cpufreq.c | 20 ++
drivers/firmware/arm_sdei.c | 71 +++---
drivers/misc/lkdtm/bugs.c | 36 +++
drivers/misc/lkdtm/core.c | 1 +
drivers/misc/lkdtm/lkdtm.h | 1 +
drivers/perf/arm-ccn.c | 20 +-
drivers/perf/arm_spe_pmu.c | 2 +-
include/linux/arch_topology.h | 2 +
include/linux/cpufreq.h | 5 +
include/linux/perf/arm_pmu.h | 1 +
include/linux/stackprotector.h | 2 +-
mm/mremap.c | 10 +
scripts/Kconfig.include | 6 +
88 files changed, 2192 insertions(+), 700 deletions(-)
create mode 100644 Documentation/arm64/amu.rst
create mode 100644 arch/arm64/include/asm/asm_pointer_auth.h
create mode 100644 arch/arm64/include/asm/compiler.h

--
Catalin

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