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From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: kvm@vger.kernel.org, gnatapov@redhat.com
Subject: [PATCH 2/3] KVM: vmx: count exits to userspace during invalid guest emulation
Date: Tue, 27 Aug 2013 15:41:42 +0200	[thread overview]
Message-ID: <1377610903-12356-3-git-send-email-pbonzini@redhat.com> (raw)
In-Reply-To: <1377610903-12356-1-git-send-email-pbonzini@redhat.com>

These will happen due to MMIO.

Suggested-by: Gleb Natapov @gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 57b4e12..1f1da43 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;
 		}
-- 
1.8.3.1



  parent reply	other threads:[~2013-08-27 13:42 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-27 13:41 [PATCH 0/3] Trivial KVM patches for 3.12 Paolo Bonzini
2013-08-27 13:41 ` [PATCH 1/3] KVM: rename __kvm_io_bus_sort_cmp to kvm_io_bus_cmp Paolo Bonzini
2013-08-27 13:41 ` Paolo Bonzini [this message]
2013-08-27 13:41 ` [PATCH 3/3] KVM: x86: add comments where MMIO does not return to the emulator Paolo Bonzini
2013-08-28  6:40 ` [PATCH 0/3] Trivial KVM patches for 3.12 Gleb Natapov

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