linux-kernel - [PATCH 4.14 V2 00/17] V4.14 backport of more 32-bit arm spectre patches

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Date:   Wed, 13 Feb 2019 21:10:05 -0500
From:   David Long <dave.long@...aro.org>
To:     stable@...r.kernel.org,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        Florian Fainelli <f.fainelli@...il.com>,
        Julien Thierry <julien.thierry@....com>,
        Tony Lindgren <tony@...mide.com>,
        Marc Zyngier <marc.zyngier@....com>,
        Greg KH <gregkh@...uxfoundation.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     Will Deacon <will.deacon@....com>, Mark Brown <broonie@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 4.14 V2 00/17] V4.14 backport of more 32-bit arm spectre patches

From: "David A. Long" <dave.long@...aro.org>

V4.14 backport of spectre patches from Russell M. King's spectre branch.
Patches have been kvm-unit-test'ed on an arndale, run through kernelci, and
handed off to ARM for functional testing.

Julien Thierry (10):
  ARM: 8789/1: signal: copy registers using __copy_to_user()
  ARM: 8790/1: signal: always use __copy_to_user to save iwmmxt context
  ARM: 8791/1: vfp: use __copy_to_user() when saving VFP state
  ARM: 8792/1: oabi-compat: copy oabi events using __copy_to_user()
  ARM: 8793/1: signal: replace __put_user_error with __put_user
  ARM: 8794/1: uaccess: Prevent speculative use of the current
    addr_limit
  ARM: 8795/1: spectre-v1.1: use put_user() for __put_user()
  ARM: 8796/1: spectre-v1,v1.1: provide helpers for address sanitization
  ARM: 8797/1: spectre-v1.1: harden __copy_to_user
  ARM: 8810/1: vfp: Fix wrong assignement to ufp_exc

Russell King (7):
  ARM: make lookup_processor_type() non-__init
  ARM: split out processor lookup
  ARM: clean up per-processor check_bugs method call
  ARM: add PROC_VTABLE and PROC_TABLE macros
  ARM: spectre-v2: per-CPU vtables to work around big.Little systems
  ARM: ensure that processor vtables is not lost after boot
  ARM: fix the cockup in the previous patch

 arch/arm/include/asm/assembler.h   | 11 ++++
 arch/arm/include/asm/cputype.h     |  1 +
 arch/arm/include/asm/proc-fns.h    | 61 ++++++++++++++++++-----
 arch/arm/include/asm/thread_info.h |  4 +-
 arch/arm/include/asm/uaccess.h     | 49 +++++++++++++++---
 arch/arm/kernel/bugs.c             |  4 +-
 arch/arm/kernel/head-common.S      |  6 +--
 arch/arm/kernel/setup.c            | 40 +++++++++------
 arch/arm/kernel/signal.c           | 80 ++++++++++++++++--------------
 arch/arm/kernel/smp.c              | 31 ++++++++++++
 arch/arm/kernel/sys_oabi-compat.c  |  8 ++-
 arch/arm/lib/copy_from_user.S      |  6 +--
 arch/arm/lib/copy_to_user.S        |  6 ++-
 arch/arm/lib/uaccess_with_memcpy.c |  3 +-
 arch/arm/mm/proc-macros.S          | 10 ++++
 arch/arm/mm/proc-v7-bugs.c         | 17 +------
 arch/arm/vfp/vfpmodule.c           | 20 +++-----
 17 files changed, 245 insertions(+), 112 deletions(-)

-- 
2.17.1