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| author | Tony Luck <tony.luck@intel.com> | 2012-07-19 20:28:46 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-07-26 15:05:47 +0200 |
| commit | 61b0fccd7f114573f973dfe25d864608822dc09e (patch) | |
| tree | 8ba7f8a8d984cba1ae1c1a528e96309e6a73cd2a /arch/alpha | |
| parent | x86/mce: Move MCACOD defines from mce-severity.c to <asm/mce.h> (diff) | |
| download | linux-61b0fccd7f114573f973dfe25d864608822dc09e.tar.xz linux-61b0fccd7f114573f973dfe25d864608822dc09e.zip | |
x86/mce: Add quirk for instruction recovery on Sandy Bridge processors
Sandy Bridge processors follow the SDM (Vol 3B, Table 15-20) and
set both the RIPV and EIPV bits in the MCG_STATUS register to
zero for machine checks during instruction fetch. This is more
than a little counter-intuitive and means that Linux cannot
recover from these errors. Rather than insert special case code
at several places in mce.c and mce-severity.c, we pretend the
EIPV bit was set for just this case early in processing the
machine check.
Acked-by: Borislav Petkov <bp@amd64.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: Chen Gong <gong.chen@linux.intel.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Link: http://lkml.kernel.org/r/180a06f3f357cf9f78259ae443a082b14a29535b.1343078495.git.tony.luck@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/alpha')
0 files changed, 0 insertions, 0 deletions