KVM: SVM: Add tracepoint for nested vmrun

This patch adds a dedicated kvm tracepoint for a nested
vmrun.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 884bffc70c7f..907af3f3a7af 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1726,6 +1726,12 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
         /* nested_vmcb is our indicator if nested SVM is activated */
         svm->nested.vmcb = svm->vmcb->save.rax;
 
+        trace_kvm_nested_vmrun(svm->vmcb->save.rip - 3, svm->nested.vmcb,
+                               nested_vmcb->save.rip,
+                               nested_vmcb->control.int_ctl,
+                               nested_vmcb->control.event_inj,
+                               nested_vmcb->control.nested_ctl);
+
         /* Clear internal status */
         kvm_clear_exception_queue(&svm->vcpu);
         kvm_clear_interrupt_queue(&svm->vcpu);