x86/mce: Add support for new MCA_SYND register

Syndrome information is no longer contained in MCA_STATUS for SMCA
systems but in a new register - MCA_SYND.

Add a synd field to struct mce to hold MCA_SYND register value. Add it
to the end of struct mce to maintain compatibility with old versions of
mcelog. Also, add it to the respective tracepoint.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1467633035-32080-1-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 4 insertions, 2 deletions

diff --git a/include/trace/events/mce.h b/include/trace/events/mce.h
index 4cbbcef6baa8..8be5268caf28 100644
--- a/include/trace/events/mce.h
+++ b/include/trace/events/mce.h
@@ -20,6 +20,7 @@ TRACE_EVENT(mce_record,
                 __field(        u64,            status          )
                 __field(        u64,            addr            )
                 __field(        u64,            misc            )
+                __field(        u64,            synd            )
                 __field(        u64,            ip              )
                 __field(        u64,            tsc             )
                 __field(        u64,            walltime        )
@@ -38,6 +39,7 @@ TRACE_EVENT(mce_record,
                 __entry->status         = m->status;
                 __entry->addr           = m->addr;
                 __entry->misc           = m->misc;
+                __entry->synd           = m->synd;
                 __entry->ip             = m->ip;
                 __entry->tsc            = m->tsc;
                 __entry->walltime       = m->time;
@@ -50,11 +52,11 @@ TRACE_EVENT(mce_record,
                 __entry->cpuvendor      = m->cpuvendor;
         ),
 
-        TP_printk("CPU: %d, MCGc/s: %llx/%llx, MC%d: %016Lx, ADDR/MISC: %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, ADDR/MISC/SYND: %016Lx/%016Lx/%016Lx, RIP: %02x:<%016Lx>, TSC: %llx, PROCESSOR: %u:%x, TIME: %llu, SOCKET: %u, APIC: %x",
                 __entry->cpu,
                 __entry->mcgcap, __entry->mcgstatus,
                 __entry->bank, __entry->status,
-                __entry->addr, __entry->misc,
+                __entry->addr, __entry->misc, __entry->synd,
                 __entry->cs, __entry->ip,
                 __entry->tsc,
                 __entry->cpuvendor, __entry->cpuid,