linux-kernel - [PATCH 078/104] KVM: disable tpr/cr8 sync when in-kernel APIC is used

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Message-Id: <11900179492754-git-send-email-avi@qumranet.com>
Date:	Mon, 17 Sep 2007 10:32:00 +0200
From:	Avi Kivity <avi@...ranet.com>
To:	kvm-devel@...ts.sourceforge.net
Cc:	linux-kernel@...r.kernel.org, "He, Qing" <qing.he@...el.com>
Subject: [PATCH 078/104] KVM: disable tpr/cr8 sync when in-kernel APIC is used

From: He, Qing <qing.he@...el.com>

Signed-off-by: Qing He <qing.he@...el.com>
Signed-off-by: Avi Kivity <avi@...ranet.com>
---
 drivers/kvm/kvm_main.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index f4cbd4f..a25dfc9 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);
-- 
1.5.3

-
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