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| author | Alex Kluver <alex.kluver@hpe.com> | 2020-08-19 09:35:43 -0500 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2020-09-17 10:19:52 +0300 |
| commit | 9baf68cc4544056f33797b78ec09388f54ecc8f0 (patch) | |
| tree | 76084587c14268ba99ae23bed5f7e8b73d1cf8fe /drivers/edac/ghes_edac.c | |
| parent | 4a568ce29d3f48df95919f82a80e4b9be7ea0dc1 (diff) | |
| download | linux-9baf68cc4544056f33797b78ec09388f54ecc8f0.tar.gz linux-9baf68cc4544056f33797b78ec09388f54ecc8f0.tar.bz2 linux-9baf68cc4544056f33797b78ec09388f54ecc8f0.zip | |
edac,ghes,cper: Add Row Extension to Memory Error Record
Memory errors could be printed with incorrect row values since the DIMM
size has outgrown the 16 bit row field in the CPER structure. UEFI
Specification Version 2.8 has increased the size of row by allowing it to
use the first 2 bits from a previously reserved space within the structure.
When needed, add the extension bits to the row value printed.
Based on UEFI 2.8 Table 299. Memory Error Record
Signed-off-by: Alex Kluver <alex.kluver@hpe.com>
Tested-by: Russ Anderson <russ.anderson@hpe.com>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Reviewed-by: Kyle Meyer <kyle.meyer@hpe.com>
Acked-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20200819143544.155096-2-alex.kluver@hpe.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'drivers/edac/ghes_edac.c')
| -rw-r--r-- | drivers/edac/ghes_edac.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c index da60c29468a7..741e7609e511 100644 --- a/drivers/edac/ghes_edac.c +++ b/drivers/edac/ghes_edac.c @@ -372,8 +372,12 @@ void ghes_edac_report_mem_error(int sev, struct cper_sec_mem_err *mem_err) p += sprintf(p, "rank:%d ", mem_err->rank); if (mem_err->validation_bits & CPER_MEM_VALID_BANK) p += sprintf(p, "bank:%d ", mem_err->bank); - if (mem_err->validation_bits & CPER_MEM_VALID_ROW) - p += sprintf(p, "row:%d ", mem_err->row); + if (mem_err->validation_bits & (CPER_MEM_VALID_ROW | CPER_MEM_VALID_ROW_EXT)) { + u32 row = mem_err->row; + + row |= cper_get_mem_extension(mem_err->validation_bits, mem_err->extended); + p += sprintf(p, "row:%d ", row); + } if (mem_err->validation_bits & CPER_MEM_VALID_COLUMN) p += sprintf(p, "col:%d ", mem_err->column); if (mem_err->validation_bits & CPER_MEM_VALID_BIT_POSITION) |