KVM: SVM: add tracing support for TDP page faults

To distinguish between real page faults and nested page faults they should be
traced as different events. This is implemented by this patch.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 8953292acfd9..218949cce1a0 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1011,6 +1011,10 @@ static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
                 KVMTRACE_3D(PAGE_FAULT, &svm->vcpu, error_code,
                             (u32)fault_address, (u32)(fault_address >> 32),
                             handler);
+        else
+                KVMTRACE_3D(TDP_FAULT, &svm->vcpu, error_code,
+                            (u32)fault_address, (u32)(fault_address >> 32),
+                            handler);
 
         return kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code);
 }