KVM: vmx: count exits to userspace during invalid guest emulation

These will happen due to MMIO.

Suggested-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 57b4e129891a6f2d1752988618a3202762bd0151..1f1da43ff2a2ca66a137c434cf738dbf7a03e704 100644 (file)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -5485,6 +5485,7 @@ static int handle_invalid_guest_state(struct kvm_vcpu *vcpu)
                err = emulate_instruction(vcpu, EMULTYPE_NO_REEXECUTE);
 
                if (err == EMULATE_USER_EXIT) {
+                       ++vcpu->stat.mmio_exits;
                        ret = 0;
                        goto out;
                }