[PATCH v2 2/2] tracing: Include Microcode Revision in mce_record tracepoint

[Avadhut Naik]

Currently, the microcode field (Microcode Revision) of struct mce is not
exported to userspace through the mce_record tracepoint.

Export it through the tracepoint as it may provide useful information for
debug and analysis.

Signed-off-by: Avadhut Naik <avadhut.n...@amd.com>
---
 include/trace/events/mce.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/include/trace/events/mce.h b/include/trace/events/mce.h
index 657b93ec8176..203baccd3c5c 100644
--- a/include/trace/events/mce.h
+++ b/include/trace/events/mce.h
@@ -34,6 +34,7 @@ TRACE_EVENT(mce_record,
                __field(        u8,             cs              )
                __field(        u8,             bank            )
                __field(        u8,             cpuvendor       )
+               __field(        u32,    microcode       )
        ),
 
        TP_fast_assign(
@@ -55,9 +56,10 @@ TRACE_EVENT(mce_record,
                __entry->cs             = m->cs;
                __entry->bank           = m->bank;
                __entry->cpuvendor      = m->cpuvendor;
+               __entry->microcode      = m->microcode;
        ),
 
-       TP_printk("CPU: %d, MCGc/s: %llx/%llx, MC%d: %016Lx, IPID: %016Lx, 
ADDR/MISC/SYND: %016Lx/%016Lx/%016Lx, RIP: %02x:<%016Lx>, TSC: %llx, PPIN: 
%llx, PROCESSOR: %u:%x, TIME: %llu, SOCKET: %u, APIC: %x",
+       TP_printk("CPU: %d, MCGc/s: %llx/%llx, MC%d: %016Lx, IPID: %016Lx, 
ADDR/MISC/SYND: %016Lx/%016Lx/%016Lx, RIP: %02x:<%016Lx>, TSC: %llx, PPIN: 
%llx, PROCESSOR: %u:%x, TIME: %llu, SOCKET: %u, APIC: %x, MICROCODE REVISION: 
%u",
                __entry->cpu,
                __entry->mcgcap, __entry->mcgstatus,
                __entry->bank, __entry->status,
@@ -69,7 +71,8 @@ TRACE_EVENT(mce_record,
                __entry->cpuvendor, __entry->cpuid,
                __entry->walltime,
                __entry->socketid,
-               __entry->apicid)
+               __entry->apicid,
+               __entry->microcode)
 );
 
 #endif /* _TRACE_MCE_H */
-- 
2.34.1