linux-kernel - [PATCH 3/3] KVM: SVM: Clean up rip handling in vmrun emulation

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Message-ID: <1283441387-7378-4-git-send-email-joerg.roedel@amd.com>
Date:	Thu, 2 Sep 2010 17:29:47 +0200
From:	Joerg Roedel <joerg.roedel@....com>
To:	Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>
CC:	<kvm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 3/3] KVM: SVM: Clean up rip handling in vmrun emulation

This patch changes the rip handling in the vmrun emulation
path from using next_rip to the generic kvm register access
functions.

Signed-off-by: Joerg Roedel <joerg.roedel@....com>
---
 arch/x86/kvm/svm.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index ecd4e58..1643f30 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -2069,7 +2069,7 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
 		return false;
 	}
 
-	trace_kvm_nested_vmrun(svm->vmcb->save.rip - 3, vmcb_gpa,
+	trace_kvm_nested_vmrun(svm->vmcb->save.rip, vmcb_gpa,
 			       nested_vmcb->save.rip,
 			       nested_vmcb->control.int_ctl,
 			       nested_vmcb->control.event_inj,
@@ -2270,8 +2270,8 @@ static int vmrun_interception(struct vcpu_svm *svm)
 	if (nested_svm_check_permissions(svm))
 		return 1;
 
-	svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
-	skip_emulated_instruction(&svm->vcpu);
+	/* Save rip after vmrun instruction */
+	kvm_rip_write(&svm->vcpu, kvm_rip_read(&svm->vcpu) + 3);
 
 	if (!nested_svm_vmrun(svm))
 		return 1;
-- 
1.7.0.4


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