From: Paolo Bonzini <pbonzini@redhat.com>
Date: Tue, 27 Aug 2013 13:41:42 +0000 (+0200)
Subject: KVM: vmx: count exits to userspace during invalid guest emulation
X-Git-Tag: Ubuntu-5.10.0-12.13~18446^2~9
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=94452b9e3401691c4d34a5a6f6a3a5b4e9c50a48;p=mirror_ubuntu-hirsute-kernel.git

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 57b4e129891a..1f1da43ff2a2 100644
--- 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;
 		}