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, 4 insertions, 1 deletions

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 2c9661f230a9..84a28ea45fa4 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4021,6 +4021,7 @@ static int vcpu_mmio_gva_to_gpa(struct kvm_vcpu *vcpu, unsigned long gva,
                   vcpu->arch.access)) {
                 *gpa = vcpu->arch.mmio_gfn << PAGE_SHIFT |
                                         (gva & (PAGE_SIZE - 1));
+                trace_vcpu_match_mmio(gva, *gpa, write, false);
                 return 1;
         }
 
@@ -4036,8 +4037,10 @@ static int vcpu_mmio_gva_to_gpa(struct kvm_vcpu *vcpu, unsigned long gva,
         if ((*gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
                 return 1;
 
-        if (vcpu_match_mmio_gpa(vcpu, *gpa))
+        if (vcpu_match_mmio_gpa(vcpu, *gpa)) {
+                trace_vcpu_match_mmio(gva, *gpa, write, true);
                 return 1;
+        }
 
         return 0;
 }