diff options
| author | Avadhut Naik <avadhut.naik@amd.com> | 2024-10-22 22:36:29 +0300 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2024-10-31 12:36:07 +0300 |
| commit | d4fca1358ea9096f2f6ed942e2cb3a820073dfc1 (patch) | |
| tree | f4832caf73d7728455cc663fd86ef1186701f564 /arch/x86/include/uapi | |
| parent | e52750fb1458ae9ea5860a08ed7a149185bc5b97 (diff) | |
| download | linux-d4fca1358ea9096f2f6ed942e2cb3a820073dfc1.tar.xz | |
x86/MCE/AMD: Add support for new MCA_SYND{1,2} registers
Starting with Zen4, AMD's Scalable MCA systems incorporate two new registers:
MCA_SYND1 and MCA_SYND2.
These registers will include supplemental error information in addition to the
existing MCA_SYND register. The data within these registers is considered
valid if MCA_STATUS[SyndV] is set.
Userspace error decoding tools like rasdaemon gather related hardware error
information through the tracepoints.
Therefore, export these two registers through the mce_record tracepoint so
that tools like rasdaemon can parse them and output the supplemental error
information like FRU text contained in them.
[ bp: Massage. ]
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Link: https://lore.kernel.org/r/20241022194158.110073-4-avadhut.naik@amd.com
Diffstat (limited to 'arch/x86/include/uapi')
| -rw-r--r-- | arch/x86/include/uapi/asm/mce.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/include/uapi/asm/mce.h b/arch/x86/include/uapi/asm/mce.h index db9adc081c5a..cb6b48a7c22b 100644 --- a/arch/x86/include/uapi/asm/mce.h +++ b/arch/x86/include/uapi/asm/mce.h @@ -8,7 +8,8 @@ /* * Fields are zero when not available. Also, this struct is shared with * userspace mcelog and thus must keep existing fields at current offsets. - * Only add new fields to the end of the structure + * Only add new, shared fields to the end of the structure. + * Do not add vendor-specific fields. */ struct mce { __u64 status; /* Bank's MCi_STATUS MSR */ |