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x86/mce: Add infrastructure to support Local MCE

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Initialize and prepare for handling LMCEs. Add a boot-time
option to disable LMCEs.

Signed-off-by: Ashok Raj <ashok.raj@intel.com>
[ Simplify stuff, align statements for better readability, reflow comments; kill
  unused lmce_clear(); save us an MSR write if LMCE is already enabled. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1433436928-31903-16-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ashok Raj
2015-06-04 18:55:23 +02:00
committed by Ingo Molnar
parent bc12edb873
commit 88d538672e
4 changed files with 54 additions and 0 deletions
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5
arch/x86/include/asm/mce.h
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@@ -109,6 +109,7 @@ struct mce_log {
struct mca_config {
bool dont_log_ce;
bool cmci_disabled;
bool lmce_disabled;
bool ignore_ce;
bool disabled;
bool ser;
@@ -184,12 +185,16 @@ void cmci_clear(void);
void cmci_reenable(void);
void cmci_rediscover(void);
void cmci_recheck(void);
void lmce_clear(void);
void lmce_enable(void);
#else
static inline void mce_intel_feature_init(struct cpuinfo_x86 *c) { }
static inline void cmci_clear(void) {}
static inline void cmci_reenable(void) {}
static inline void cmci_rediscover(void) {}
static inline void cmci_recheck(void) {}
static inline void lmce_clear(void) {}
static inline void lmce_enable(void) {}
#endif
#ifdef CONFIG_X86_MCE_AMD