KVM: MMU: trace mmio page fault

Add tracepoints to trace mmio page fault

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 624f8cb46a6b..3ff898c104f7 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -698,6 +698,29 @@ TRACE_EVENT(kvm_emulate_insn,
 #define trace_kvm_emulate_insn_start(vcpu) trace_kvm_emulate_insn(vcpu, 0)
 #define trace_kvm_emulate_insn_failed(vcpu) trace_kvm_emulate_insn(vcpu, 1)
 
+TRACE_EVENT(
+        vcpu_match_mmio,
+        TP_PROTO(gva_t gva, gpa_t gpa, bool write, bool gpa_match),
+        TP_ARGS(gva, gpa, write, gpa_match),
+
+        TP_STRUCT__entry(
+                __field(gva_t, gva)
+                __field(gpa_t, gpa)
+                __field(bool, write)
+                __field(bool, gpa_match)
+                ),
+
+        TP_fast_assign(
+                __entry->gva = gva;
+                __entry->gpa = gpa;
+                __entry->write = write;
+                __entry->gpa_match = gpa_match
+                ),
+
+        TP_printk("gva %#lx gpa %#llx %s %s", __entry->gva, __entry->gpa,
+                  __entry->write ? "Write" : "Read",
+                  __entry->gpa_match ? "GPA" : "GVA")
+);
 #endif /* _TRACE_KVM_H */
 
 #undef TRACE_INCLUDE_PATH