KVM: SVM: Add tracepoint for nested #vmexit

This patch adds a tracepoint for every #vmexit we get from a
nested guest.

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 907af3f3a7a..edf6e8b2b84 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -2366,6 +2366,12 @@ static int handle_exit(struct kvm_vcpu *vcpu)
         if (is_nested(svm)) {
                 int vmexit;
 
+                trace_kvm_nested_vmexit(svm->vmcb->save.rip, exit_code,
+                                        svm->vmcb->control.exit_info_1,
+                                        svm->vmcb->control.exit_info_2,
+                                        svm->vmcb->control.exit_int_info,
+                                        svm->vmcb->control.exit_int_info_err);
+
                 nsvm_printk("nested handle_exit: 0x%x | 0x%lx | 0x%lx | 0x%lx\n",
                             exit_code, svm->vmcb->control.exit_info_1,
                             svm->vmcb->control.exit_info_2, svm->vmcb->save.rip);