[PATCH 4.9 00/43] 4.9.310-rc1 review

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

This is the start of the stable review cycle for the 4.9.310 release.
There are 43 patches in this series, all will be posted as a response
to this one.  If anyone has any issues with these being applied, please
let me know.

Responses should be made by Fri, 08 Apr 2022 18:24:27 +0000.
Anything received after that time might be too late.

The whole patch series can be found in one patch at:
	https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.310-rc1.gz
or in the git tree and branch at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Linux 4.9.310-rc1

James Morse <james.morse@arm.com>
    arm64: Use the clearbhb instruction in mitigations

James Morse <james.morse@arm.com>
    arm64: add ID_AA64ISAR2_EL1 sys register

James Morse <james.morse@arm.com>
    KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated

James Morse <james.morse@arm.com>
    arm64: Mitigate spectre style branch history side channels

James Morse <james.morse@arm.com>
    KVM: arm64: Add templates for BHB mitigation sequences

James Morse <james.morse@arm.com>
    arm64: Add percpu vectors for EL1

James Morse <james.morse@arm.com>
    arm64: entry: Add macro for reading symbol addresses from the trampoline

James Morse <james.morse@arm.com>
    arm64: entry: Add vectors that have the bhb mitigation sequences

James Morse <james.morse@arm.com>
    arm64: Move arm64_update_smccc_conduit() out of SSBD ifdef

James Morse <james.morse@arm.com>
    arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations

James Morse <james.morse@arm.com>
    arm64: entry: Allow the trampoline text to occupy multiple pages

James Morse <james.morse@arm.com>
    arm64: entry: Make the kpti trampoline's kpti sequence optional

James Morse <james.morse@arm.com>
    arm64: entry: Move trampoline macros out of ifdef'd section

James Morse <james.morse@arm.com>
    arm64: entry: Don't assume tramp_vectors is the start of the vectors

James Morse <james.morse@arm.com>
    arm64: entry: Allow tramp_alias to access symbols after the 4K boundary

James Morse <james.morse@arm.com>
    arm64: entry: Move the trampoline data page before the text page

James Morse <james.morse@arm.com>
    arm64: entry: Free up another register on kpti's tramp_exit path

James Morse <james.morse@arm.com>
    arm64: entry: Make the trampoline cleanup optional

James Morse <james.morse@arm.com>
    arm64: entry.S: Add ventry overflow sanity checks

Suzuki K Poulose <suzuki.poulose@arm.com>
    arm64: Add helper to decode register from instruction

Anshuman Khandual <anshuman.khandual@arm.com>
    arm64: Add Cortex-X2 CPU part definition

Suzuki K Poulose <suzuki.poulose@arm.com>
    arm64: Add Neoverse-N2, Cortex-A710 CPU part definition

Rob Herring <robh@kernel.org>
    arm64: Add part number for Arm Cortex-A77

Marc Zyngier <marc.zyngier@arm.com>
    arm64: Add part number for Neoverse N1

Marc Zyngier <marc.zyngier@arm.com>
    arm64: Make ARM64_ERRATUM_1188873 depend on COMPAT

Marc Zyngier <marc.zyngier@arm.com>
    arm64: Add silicon-errata.txt entry for ARM erratum 1188873

Arnd Bergmann <arnd@arndb.de>
    arm64: arch_timer: avoid unused function warning

Marc Zyngier <marc.zyngier@arm.com>
    arm64: arch_timer: Add workaround for ARM erratum 1188873

Marc Zyngier <marc.zyngier@arm.com>
    arm64: arch_timer: Add erratum handler for CPU-specific capability

Marc Zyngier <marc.zyngier@arm.com>
    arm64: arch_timer: Add infrastructure for multiple erratum detection methods

Ding Tianhong <dingtianhong@huawei.com>
    clocksource/drivers/arm_arch_timer: Introduce generic errata handling infrastructure

Ding Tianhong <dingtianhong@huawei.com>
    clocksource/drivers/arm_arch_timer: Remove fsl-a008585 parameter

Suzuki K Poulose <suzuki.poulose@arm.com>
    arm64: capabilities: Add support for checks based on a list of MIDRs

Suzuki K Poulose <suzuki.poulose@arm.com>
    arm64: Add helpers for checking CPU MIDR against a range

Suzuki K Poulose <suzuki.poulose@arm.com>
    arm64: capabilities: Clean up midr range helpers

Suzuki K Poulose <suzuki.poulose@arm.com>
    arm64: capabilities: Add flags to handle the conflicts on late CPU

Suzuki K Poulose <suzuki.poulose@arm.com>
    arm64: capabilities: Prepare for fine grained capabilities

Suzuki K Poulose <suzuki.poulose@arm.com>
    arm64: capabilities: Move errata processing code

Suzuki K Poulose <suzuki.poulose@arm.com>
    arm64: capabilities: Move errata work around check on boot CPU

Dave Martin <dave.martin@arm.com>
    arm64: capabilities: Update prototype for enable call back

Suzuki K Poulose <suzuki.poulose@arm.com>
    arm64: Add MIDR encoding for Arm Cortex-A55 and Cortex-A35

James Morse <james.morse@arm.com>
    arm64: Remove useless UAO IPI and describe how this gets enabled

Robert Richter <rrichter@cavium.com>
    arm64: errata: Provide macro for major and minor cpu revisions


-------------

Diffstat:

 Documentation/arm64/silicon-errata.txt |   1 +
 Documentation/kernel-parameters.txt    |   9 -
 Makefile                               |   4 +-
 arch/arm/include/asm/kvm_host.h        |   5 +
 arch/arm/kvm/psci.c                    |   4 +
 arch/arm64/Kconfig                     |  24 ++
 arch/arm64/include/asm/arch_timer.h    |  44 ++-
 arch/arm64/include/asm/assembler.h     |  34 ++
 arch/arm64/include/asm/cpu.h           |   1 +
 arch/arm64/include/asm/cpucaps.h       |   4 +-
 arch/arm64/include/asm/cpufeature.h    | 232 ++++++++++++-
 arch/arm64/include/asm/cputype.h       |  63 ++++
 arch/arm64/include/asm/fixmap.h        |   6 +-
 arch/arm64/include/asm/insn.h          |   2 +
 arch/arm64/include/asm/kvm_host.h      |   4 +
 arch/arm64/include/asm/kvm_mmu.h       |   2 +-
 arch/arm64/include/asm/mmu.h           |   8 +-
 arch/arm64/include/asm/processor.h     |   6 +-
 arch/arm64/include/asm/sections.h      |   6 +
 arch/arm64/include/asm/sysreg.h        |   5 +
 arch/arm64/include/asm/vectors.h       |  74 +++++
 arch/arm64/kernel/bpi.S                |  55 +++
 arch/arm64/kernel/cpu_errata.c         | 591 ++++++++++++++++++++++++++-------
 arch/arm64/kernel/cpufeature.c         | 167 +++++++---
 arch/arm64/kernel/cpuinfo.c            |   1 +
 arch/arm64/kernel/entry.S              | 197 ++++++++---
 arch/arm64/kernel/fpsimd.c             |   1 +
 arch/arm64/kernel/insn.c               |  29 ++
 arch/arm64/kernel/smp.c                |   6 -
 arch/arm64/kernel/traps.c              |   4 +-
 arch/arm64/kernel/vmlinux.lds.S        |   2 +-
 arch/arm64/kvm/hyp/hyp-entry.S         |   4 +
 arch/arm64/kvm/hyp/switch.c            |   9 +-
 arch/arm64/mm/fault.c                  |  17 +-
 arch/arm64/mm/mmu.c                    |  11 +-
 drivers/clocksource/Kconfig            |   4 +
 drivers/clocksource/arm_arch_timer.c   | 192 ++++++++---
 include/linux/arm-smccc.h              |   7 +
 38 files changed, 1504 insertions(+), 331 deletions(-)