KVM: nVMX: Add tracepoints for nested_vmexit and nested_vmexit_inject

Already used by nested SVM for tracing nested vmexit: kvm_nested_vmexit
marks exits from L2 to L0 while kvm_nested_vmexit_inject marks vmexits
that are reflected to L1.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index e3578b301d81..e539c45eb669 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -6697,6 +6697,13 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
         struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
         u32 exit_reason = vmx->exit_reason;
 
+        trace_kvm_nested_vmexit(kvm_rip_read(vcpu), exit_reason,
+                                vmcs_readl(EXIT_QUALIFICATION),
+                                vmx->idt_vectoring_info,
+                                intr_info,
+                                vmcs_read32(VM_EXIT_INTR_ERROR_CODE),
+                                KVM_ISA_VMX);
+
         if (vmx->nested.nested_run_pending)
                 return 0;
 
@@ -8469,6 +8476,13 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
         prepare_vmcs12(vcpu, vmcs12, exit_reason, exit_intr_info,
                        exit_qualification);
 
+        trace_kvm_nested_vmexit_inject(vmcs12->vm_exit_reason,
+                                       vmcs12->exit_qualification,
+                                       vmcs12->idt_vectoring_info_field,
+                                       vmcs12->vm_exit_intr_info,
+                                       vmcs12->vm_exit_intr_error_code,
+                                       KVM_ISA_VMX);
+
         cpu = get_cpu();
         vmx->loaded_vmcs = &vmx->vmcs01;
         vmx_vcpu_put(vcpu);