diff options
| author | Avadhut Naik <avadhut.naik@amd.com> | 2024-10-22 19:36:29 +0000 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2024-10-31 10:36:07 +0100 |
| commit | d4fca1358ea9096f2f6ed942e2cb3a820073dfc1 (patch) | |
| tree | f4832caf73d7728455cc663fd86ef1186701f564 /include/trace | |
| parent | e52750fb1458ae9ea5860a08ed7a149185bc5b97 (diff) | |
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 'include/trace')
| -rw-r--r-- | include/trace/events/mce.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/trace/events/mce.h b/include/trace/events/mce.h index 65aba1afcd07..c1c50df9ecfd 100644 --- a/include/trace/events/mce.h +++ b/include/trace/events/mce.h @@ -43,6 +43,7 @@ TRACE_EVENT(mce_record, __field( u8, bank ) __field( u8, cpuvendor ) __field( u32, microcode ) + __dynamic_array(u8, v_data, sizeof(err->vendor)) ), TP_fast_assign( @@ -65,9 +66,10 @@ TRACE_EVENT(mce_record, __entry->bank = err->m.bank; __entry->cpuvendor = err->m.cpuvendor; __entry->microcode = err->m.microcode; + memcpy(__get_dynamic_array(v_data), &err->vendor, sizeof(err->vendor)); ), - TP_printk("CPU: %d, MCGc/s: %llx/%llx, MC%d: %016Lx, IPID: %016Lx, ADDR: %016Lx, MISC: %016Lx, SYND: %016Lx, RIP: %02x:<%016Lx>, TSC: %llx, PPIN: %llx, vendor: %u, CPUID: %x, time: %llu, socket: %u, APIC: %x, microcode: %x", + TP_printk("CPU: %d, MCGc/s: %llx/%llx, MC%d: %016llx, IPID: %016llx, ADDR: %016llx, MISC: %016llx, SYND: %016llx, RIP: %02x:<%016llx>, TSC: %llx, PPIN: %llx, vendor: %u, CPUID: %x, time: %llu, socket: %u, APIC: %x, microcode: %x, vendor data: %s", __entry->cpu, __entry->mcgcap, __entry->mcgstatus, __entry->bank, __entry->status, @@ -83,7 +85,8 @@ TRACE_EVENT(mce_record, __entry->walltime, __entry->socketid, __entry->apicid, - __entry->microcode) + __entry->microcode, + __print_dynamic_array(v_data, sizeof(u8))) ); #endif /* _TRACE_MCE_H */ |