linux-kernel - [PATCH 2/5] KVM: SVM: don't copy exit_int

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Date:	Wed, 16 Sep 2009 15:24:16 +0200
From:	Joerg Roedel <joerg.roedel@....com>
To:	Avi Kivity <avi@...hat.com>
CC:	kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	Alexander Graf <agraf@...e.de>,
	Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 2/5] KVM: SVM: don't copy exit_int_info on nested vmrun

The exit_int_info field is only written by the hardware and
never read. So it does not need to be copied on a vmrun
emulation.

Signed-off-by: Joerg Roedel <joerg.roedel@....com>
---
 arch/x86/kvm/svm.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 668460c..80f5309 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1790,8 +1790,6 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
 	svm->nested.intercept            = nested_vmcb->control.intercept;
 
 	force_new_asid(&svm->vcpu);
-	svm->vmcb->control.exit_int_info = nested_vmcb->control.exit_int_info;
-	svm->vmcb->control.exit_int_info_err = nested_vmcb->control.exit_int_info_err;
 	svm->vmcb->control.int_ctl = nested_vmcb->control.int_ctl | V_INTR_MASKING_MASK;
 	if (nested_vmcb->control.int_ctl & V_IRQ_MASK) {
 		nsvm_printk("nSVM Injecting Interrupt: 0x%x\n",
-- 
1.6.3.3


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