From: He, Qing <qing.he@intel.com>
Date: Thu, 30 Aug 2007 09:04:26 +0000 (+0800)
Subject: KVM: disable tpr/cr8 sync when in-kernel APIC is used
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=5cd4f6fd8506f59cb8a232f364c54f6bd8e5150a;p=deliverable%2Flinux.git

KVM: disable tpr/cr8 sync when in-kernel APIC is used

Signed-off-by: Qing He <qing.he@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 8f8bfc9160e3..02af24e8350c 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -2005,7 +2005,8 @@ static int kvm_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 		sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
 
 	/* re-sync apic's tpr */
-	set_cr8(vcpu, kvm_run->cr8);
+	if (!irqchip_in_kernel(vcpu->kvm))
+		set_cr8(vcpu, kvm_run->cr8);
 
 	if (vcpu->pio.cur_count) {
 		r = complete_pio(vcpu);