[PATCH 44/45] KVM: Disable CR8 intercept if tpr patching is active

From: Avi Kivity
Date: Sun May 24 2009 - 11:52:02 EST


From: Gleb Natapov <gleb@xxxxxxxxxx>

Signed-off-by: Gleb Natapov <gleb@xxxxxxxxxx>
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
arch/x86/kvm/x86.c | 11 ++++++-----
1 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 7037afa..44e87a5 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3138,7 +3138,10 @@ static void update_cr8_intercept(struct kvm_vcpu *vcpu)
if (!kvm_x86_ops->update_cr8_intercept)
return;

- max_irr = kvm_lapic_find_highest_irr(vcpu);
+ if (!vcpu->arch.apic->vapic_addr)
+ max_irr = kvm_lapic_find_highest_irr(vcpu);
+ else
+ max_irr = -1;

if (max_irr != -1)
max_irr >>= 4;
@@ -3245,10 +3248,8 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
kvm_x86_ops->enable_irq_window(vcpu);

if (kvm_lapic_enabled(vcpu)) {
- if (!vcpu->arch.apic->vapic_addr)
- update_cr8_intercept(vcpu);
- else
- kvm_lapic_sync_to_vapic(vcpu);
+ update_cr8_intercept(vcpu);
+ kvm_lapic_sync_to_vapic(vcpu);
}

up_read(&vcpu->kvm->slots_lock);
--
1.6.0.6

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