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x86/mce Add validation check before GHES error is recorded

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When GHES error record is logged into mcelog kernel buffer, a validation
check for physical address is necessary, which prevents reporting an
invalid physical address.

[Since physical address is the only useful element in this error record,
we drop generating the record completely if we don't have a valid address]

Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Chen Gong 2012-04-20 16:02:05 -07:00 committed by Tony Luck
parent 95022b8cf6
commit 8571723a69
1 changed files with 2 additions and 1 deletions
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3
arch/x86/kernel/cpu/mcheck/mce-apei.c
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@ -42,7 +42,8 @@ void apei_mce_report_mem_error(int corrected, struct cper_sec_mem_err *mem_err)
struct mce m;
/* Only corrected MC is reported */
if (!corrected)
if (!corrected || !(mem_err->validation_bits &
CPER_MEM_VALID_PHYSICAL_ADDRESS))
return;
mce_setup(&m);