[GIT PULL] Machine check recovery when kernel accesses poison

[GIT PULL] Machine check recovery when kernel accesses poison

[Luck, Tony]

The following changes since commit 18558cae0272f8fd9647e69d3fec1565a7949865:

  Linux 4.5-rc4 (2016-02-14 13:05:20 -0800)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras.git tags/please-pull-mcsafev11

for you to fetch changes up to 2e5bfb23c89800a036fb8a45fa97a74bb16bc362:

  x86: Create a new synthetic cpu capability for machine check recovery (2016-02-16 10:31:20 -0800)

----------------------------------------------------------------
Four part patch series to extend exception table
to allow kernel to recover from machine checks.
Provide a sample __mcsafe_copy() routine that uses
this which will be used by libnvdimm.

----------------------------------------------------------------
Tony Luck (4):
      x86: Expand exception table to allow new handling options
      x86, mce: Check for faults tagged in EXTABLE_CLASS_FAULT exception table entries
      x86, mce: Add __mcsafe_copy()
      x86: Create a new synthetic cpu capability for machine check recovery

 Documentation/x86/exception-tables.txt    |  35 +++++++
 Documentation/x86/x86_64/boot-options.txt |   2 +
 arch/x86/include/asm/asm.h                |  40 ++++----
 arch/x86/include/asm/cpufeature.h         |   1 +
 arch/x86/include/asm/mce.h                |   1 +
 arch/x86/include/asm/string_64.h          |   8 ++
 arch/x86/include/asm/uaccess.h            |  16 ++--
 arch/x86/kernel/cpu/mcheck/mce-severity.c |  22 ++++-
 arch/x86/kernel/cpu/mcheck/mce.c          |  83 +++++++++-------
 arch/x86/kernel/kprobes/core.c            |   2 +-
 arch/x86/kernel/traps.c                   |   6 +-
 arch/x86/kernel/x8664_ksyms_64.c          |   2 +
 arch/x86/lib/memcpy_64.S                  | 151 ++++++++++++++++++++++++++++++
 arch/x86/mm/extable.c                     | 100 ++++++++++++++------
 arch/x86/mm/fault.c                       |   2 +-
 scripts/sortextable.c                     |  32 +++++++
 16 files changed, 410 insertions(+), 93 deletions(-)