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ACPI, APEI, CPER: Add UEFI 2.4 support for memory error

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In latest UEFI spec(by now it is 2.4) memory error definition
for CPER (UEFI 2.4 Appendix N Common Platform Error Record)
adds some new fields. These fields help people to locate
memory error to an actual DIMM location.

Original-author: Tony Luck <[email protected]>
Signed-off-by: Chen, Gong <[email protected]>
Reviewed-by: Borislav Petkov <[email protected]>
Reviewed-by: Mauro Carvalho Chehab <[email protected]>
Acked-by: Naveen N. Rao <[email protected]>
Signed-off-by: Tony Luck <[email protected]>
This commit is contained in:
Chen, Gong 2013-10-18 14:30:13 -07:00 • committed by Tony Luck
commit 147de14772
5 changed files with 18 additions and 12 deletions
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5
drivers/edac/ghes_edac.c
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@ -297,15 +297,14 @@ void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
}
/* Error address */
if (mem_err->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS) {
if (mem_err->validation_bits & CPER_MEM_VALID_PA) {
e->page_frame_number = mem_err->physical_addr >> PAGE_SHIFT;
e->offset_in_page = mem_err->physical_addr & ~PAGE_MASK;
}
/* Error grain */
if (mem_err->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS_MASK) {
if (mem_err->validation_bits & CPER_MEM_VALID_PA_MASK)
e->grain = ~(mem_err->physical_addr_mask & ~PAGE_MASK);
}
/* Memory error location, mapped on e->location */
p = e->location;