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| author | Tony Luck <tony.luck@intel.com> | 2016-09-01 11:39:33 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-09-05 11:47:31 +0200 |
| commit | 3637efb00864f465baebd49464e58319fd295b65 (patch) | |
| tree | 7076ce7b755526f7af9f2793c17f38e8e33b1bfd /arch/x86/include/asm/string_64.h | |
| parent | b8fb03785d4de097507d0cf45873525e0ac4d2b2 (diff) | |
| download | linux-0-day-3637efb00864f465baebd49464e58319fd295b65.tar.gz linux-0-day-3637efb00864f465baebd49464e58319fd295b65.tar.xz | |
x86/mce: Add PCI quirks to identify Xeons with machine check recovery
Each Xeon includes a number of capability registers in PCI space that
describe some features not enumerated by CPUID.
Use these to determine that we are running on a model that can recover from
machine checks. Hooks for Ivybridge ... Skylake provided.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Borislav Petkov <bp@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Boris Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/abf331dc4a3e2a2d17444129bc51127437bcf4ba.1472754711.git.tony.luck@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include/asm/string_64.h')
| -rw-r--r-- | arch/x86/include/asm/string_64.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/string_64.h b/arch/x86/include/asm/string_64.h index 90dbbd9666d43..877a1dfbf7707 100644 --- a/arch/x86/include/asm/string_64.h +++ b/arch/x86/include/asm/string_64.h @@ -2,6 +2,7 @@ #define _ASM_X86_STRING_64_H #ifdef __KERNEL__ +#include <linux/jump_label.h> /* Written 2002 by Andi Kleen */ @@ -78,6 +79,8 @@ int strcmp(const char *cs, const char *ct); #define memset(s, c, n) __memset(s, c, n) #endif +DECLARE_STATIC_KEY_FALSE(mcsafe_key); + /** * memcpy_mcsafe - copy memory with indication if a machine check happened * |