linux-kernel - [PATCH 5.4 00/18] 5.4.184-rc1 review

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Date:   Wed,  9 Mar 2022 16:59:49 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, torvalds@...ux-foundation.org,
        akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org,
        patches@...nelci.org, lkft-triage@...ts.linaro.org, pavel@...x.de,
        jonathanh@...dia.com, f.fainelli@...il.com,
        sudipm.mukherjee@...il.com, slade@...dewatkins.com
Subject: [PATCH 5.4 00/18] 5.4.184-rc1 review

This is the start of the stable review cycle for the 5.4.184 release.
There are 18 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, 11 Mar 2022 15:58:48 +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/v5.x/stable-review/patch-5.4.184-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-5.4.y
and the diffstat can be found below.

thanks,

greg k-h

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

Greg Kroah-Hartman <gregkh@...uxfoundation.org>
    Linux 5.4.184-rc1

Emmanuel Gil Peyrot <linkmauve@...kmauve.fr>
    ARM: fix build error when BPF_SYSCALL is disabled

Russell King (Oracle) <rmk+kernel@...linux.org.uk>
    ARM: include unprivileged BPF status in Spectre V2 reporting

Russell King (Oracle) <rmk+kernel@...linux.org.uk>
    ARM: Spectre-BHB workaround

Russell King (Oracle) <rmk+kernel@...linux.org.uk>
    ARM: use LOADADDR() to get load address of sections

Russell King (Oracle) <rmk+kernel@...linux.org.uk>
    ARM: early traps initialisation

Russell King (Oracle) <rmk+kernel@...linux.org.uk>
    ARM: report Spectre v2 status through sysfs

Mark Rutland <mark.rutland@....com>
    arm/arm64: smccc/psci: add arm_smccc_1_1_get_conduit()

Steven Price <steven.price@....com>
    arm/arm64: Provide a wrapper for SMCCC 1.1 calls

Josh Poimboeuf <jpoimboe@...hat.com>
    x86/speculation: Warn about eIBRS + LFENCE + Unprivileged eBPF + SMT

Josh Poimboeuf <jpoimboe@...hat.com>
    x86/speculation: Warn about Spectre v2 LFENCE mitigation

Kim Phillips <kim.phillips@....com>
    x86/speculation: Update link to AMD speculation whitepaper

Kim Phillips <kim.phillips@....com>
    x86/speculation: Use generic retpoline by default on AMD

Josh Poimboeuf <jpoimboe@...hat.com>
    x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting

Peter Zijlstra <peterz@...radead.org>
    Documentation/hw-vuln: Update spectre doc

Peter Zijlstra <peterz@...radead.org>
    x86/speculation: Add eIBRS + Retpoline options

Peter Zijlstra (Intel) <peterz@...radead.org>
    x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE

Peter Zijlstra <peterz@...radead.org>
    x86,bugs: Unconditionally allow spectre_v2=retpoline,amd

Borislav Petkov <bp@...e.de>
    x86/speculation: Merge one test in spectre_v2_user_select_mitigation()


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

Diffstat:

 Documentation/admin-guide/hw-vuln/spectre.rst   |  48 ++++--
 Documentation/admin-guide/kernel-parameters.txt |   8 +-
 Makefile                                        |   4 +-
 arch/arm/include/asm/assembler.h                |  10 ++
 arch/arm/include/asm/spectre.h                  |  32 ++++
 arch/arm/kernel/Makefile                        |   2 +
 arch/arm/kernel/entry-armv.S                    |  79 ++++++++-
 arch/arm/kernel/entry-common.S                  |  24 +++
 arch/arm/kernel/spectre.c                       |  71 ++++++++
 arch/arm/kernel/traps.c                         |  65 ++++++-
 arch/arm/kernel/vmlinux.lds.h                   |  35 +++-
 arch/arm/mm/Kconfig                             |  11 ++
 arch/arm/mm/proc-v7-bugs.c                      | 199 +++++++++++++++++++---
 arch/x86/include/asm/cpufeatures.h              |   2 +-
 arch/x86/include/asm/nospec-branch.h            |  16 +-
 arch/x86/kernel/cpu/bugs.c                      | 216 +++++++++++++++++-------
 drivers/firmware/psci/psci.c                    |  15 ++
 include/linux/arm-smccc.h                       |  74 ++++++++
 include/linux/bpf.h                             |  12 ++
 kernel/sysctl.c                                 |   8 +
 tools/arch/x86/include/asm/cpufeatures.h        |   2 +-
 21 files changed, 796 insertions(+), 137 deletions(-)