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| author | Yazen Ghannam | 2017-12-18 12:37:13 +0100 |
|---|---|---|
| committer | Thomas Gleixner | 2017-12-18 12:58:29 +0100 |
| commit | c6708d50f166bea2d763c96485d31fdbc50204f1 (patch) | |
| tree | 4d84ef91fab54567c428b14e29e393c56822492a /arch/x86/include/asm/mce.h | |
| parent | x86/MCE/AMD: Define a function to get SMCA bank type (diff) | |
| download | kernel-qcow2-linux-c6708d50f166bea2d763c96485d31fdbc50204f1.tar.gz kernel-qcow2-linux-c6708d50f166bea2d763c96485d31fdbc50204f1.tar.xz kernel-qcow2-linux-c6708d50f166bea2d763c96485d31fdbc50204f1.zip | |
x86/MCE: Report only DRAM ECC as memory errors on AMD systems
The MCA_STATUS[ErrorCodeExt] field is very bank type specific.
We currently check if the ErrorCodeExt value is 0x0 or 0x8 in
mce_is_memory_error(), but we don't check the bank number. This means
that we could flag non-memory errors as memory errors.
We know that we want to flag DRAM ECC errors as memory errors, so let's do
those cases first. We can add more cases later when needed.
Define a wrapper function in mce_amd.c so we can use SMCA enums.
[ bp: Remove brackets around return statements. ]
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20171207203955.118171-2-Yazen.Ghannam@amd.com
Diffstat (limited to 'arch/x86/include/asm/mce.h')
| -rw-r--r-- | arch/x86/include/asm/mce.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index b1e8d8db921f..96ea4b5ba658 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -376,6 +376,7 @@ struct smca_bank { extern struct smca_bank smca_banks[MAX_NR_BANKS]; extern const char *smca_get_long_name(enum smca_bank_types t); +extern bool amd_mce_is_memory_error(struct mce *m); extern int mce_threshold_create_device(unsigned int cpu); extern int mce_threshold_remove_device(unsigned int cpu); @@ -384,6 +385,7 @@ extern int mce_threshold_remove_device(unsigned int cpu); static inline int mce_threshold_create_device(unsigned int cpu) { return 0; }; static inline int mce_threshold_remove_device(unsigned int cpu) { return 0; }; +static inline bool amd_mce_is_memory_error(struct mce *m) { return false; }; #endif |