1 files changed, 5 insertions, 2 deletions

diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h
index d6f83222a6a1..67ff6555967f 100644
--- a/include/trace/events/kvm.h
+++ b/include/trace/events/kvm.h
@@ -204,7 +204,7 @@ TRACE_EVENT(kvm_ack_irq,
         { KVM_TRACE_MMIO_WRITE, "write" }
 
 TRACE_EVENT(kvm_mmio,
-        TP_PROTO(int type, int len, u64 gpa, u64 val),
+        TP_PROTO(int type, int len, u64 gpa, void *val),
         TP_ARGS(type, len, gpa, val),
 
         TP_STRUCT__entry(
@@ -218,7 +218,10 @@ TRACE_EVENT(kvm_mmio,
                 __entry->type           = type;
                 __entry->len            = len;
                 __entry->gpa            = gpa;
-                __entry->val            = val;
+                __entry->val            = 0;
+                if (val)
+                        memcpy(&__entry->val, val,
+                               min_t(u32, sizeof(__entry->val), len));
         ),
 
         TP_printk("mmio %s len %u gpa 0x%llx val 0x%llx",