diff mbox series

[v2,1/2] tracing: Include PPIN in mce_record tracepoint

Message ID 20240125184857.851355-2-avadhut.naik@amd.com (mailing list archive)
State Superseded
Headers show
Series Update mce_record tracepoint | expand

Commit Message

Avadhut Naik Jan. 25, 2024, 6:48 p.m. UTC
Machine Check Error information from struct mce is exported to userspace
through the mce_record tracepoint.

Currently, however, the PPIN (Protected Processor Inventory Number) field
of struct mce is not exported through the tracepoint.

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

Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
---
 include/trace/events/mce.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Comments

Sohil Mehta Jan. 25, 2024, 8:58 p.m. UTC | #1
On 1/25/2024 10:48 AM, Avadhut Naik wrote:
> Machine Check Error information from struct mce is exported to userspace
> through the mce_record tracepoint.
> 
> Currently, however, the PPIN (Protected Processor Inventory Number) field
> of struct mce is not exported through the tracepoint.
> 
> Export PPIN through the tracepoint as it may provide useful information
> for debug and analysis.
> 
> Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
> ---

The patch looks fine to me expect for a nit below.

With that fixed, please feel free to add:
Reviewed-by: Sohil Mehta <sohil.mehta@intel.com>

>  include/trace/events/mce.h | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/include/trace/events/mce.h b/include/trace/events/mce.h
> index 1391ada0da3b..657b93ec8176 100644
> --- a/include/trace/events/mce.h
> +++ b/include/trace/events/mce.h
> @@ -25,6 +25,7 @@ TRACE_EVENT(mce_record,
>  		__field(	u64,		ipid		)
>  		__field(	u64,		ip		)
>  		__field(	u64,		tsc		)
> +		__field(	u64,		ppin	)

The tabs are not aligned with the rest of the structure.

>  		__field(	u64,		walltime	)
>  		__field(	u32,		cpu		)
>  		__field(	u32,		cpuid		)
> @@ -45,6 +46,7 @@ TRACE_EVENT(mce_record,
>  		__entry->ipid		= m->ipid;
>  		__entry->ip		= m->ip;
>  		__entry->tsc		= m->tsc;
> +		__entry->ppin		= m->ppin;
>  		__entry->walltime	= m->time;
>  		__entry->cpu		= m->extcpu;
>  		__entry->cpuid		= m->cpuid;
> @@ -55,7 +57,7 @@ TRACE_EVENT(mce_record,
>  		__entry->cpuvendor	= m->cpuvendor;
>  	),
>  
> -	TP_printk("CPU: %d, MCGc/s: %llx/%llx, MC%d: %016Lx, IPID: %016Lx, ADDR/MISC/SYND: %016Lx/%016Lx/%016Lx, RIP: %02x:<%016Lx>, TSC: %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",
>  		__entry->cpu,
>  		__entry->mcgcap, __entry->mcgstatus,
>  		__entry->bank, __entry->status,
> @@ -63,6 +65,7 @@ TRACE_EVENT(mce_record,
>  		__entry->addr, __entry->misc, __entry->synd,
>  		__entry->cs, __entry->ip,
>  		__entry->tsc,
> +		__entry->ppin,
>  		__entry->cpuvendor, __entry->cpuid,
>  		__entry->walltime,
>  		__entry->socketid,
diff mbox series

Patch

diff --git a/include/trace/events/mce.h b/include/trace/events/mce.h
index 1391ada0da3b..657b93ec8176 100644
--- a/include/trace/events/mce.h
+++ b/include/trace/events/mce.h
@@ -25,6 +25,7 @@  TRACE_EVENT(mce_record,
 		__field(	u64,		ipid		)
 		__field(	u64,		ip		)
 		__field(	u64,		tsc		)
+		__field(	u64,		ppin	)
 		__field(	u64,		walltime	)
 		__field(	u32,		cpu		)
 		__field(	u32,		cpuid		)
@@ -45,6 +46,7 @@  TRACE_EVENT(mce_record,
 		__entry->ipid		= m->ipid;
 		__entry->ip		= m->ip;
 		__entry->tsc		= m->tsc;
+		__entry->ppin		= m->ppin;
 		__entry->walltime	= m->time;
 		__entry->cpu		= m->extcpu;
 		__entry->cpuid		= m->cpuid;
@@ -55,7 +57,7 @@  TRACE_EVENT(mce_record,
 		__entry->cpuvendor	= m->cpuvendor;
 	),
 
-	TP_printk("CPU: %d, MCGc/s: %llx/%llx, MC%d: %016Lx, IPID: %016Lx, ADDR/MISC/SYND: %016Lx/%016Lx/%016Lx, RIP: %02x:<%016Lx>, TSC: %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",
 		__entry->cpu,
 		__entry->mcgcap, __entry->mcgstatus,
 		__entry->bank, __entry->status,
@@ -63,6 +65,7 @@  TRACE_EVENT(mce_record,
 		__entry->addr, __entry->misc, __entry->synd,
 		__entry->cs, __entry->ip,
 		__entry->tsc,
+		__entry->ppin,
 		__entry->cpuvendor, __entry->cpuid,
 		__entry->walltime,
 		__entry->socketid,