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KVM: Disable CR8 intercept if tpr patching is active
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Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Gleb Natapov authored and Avi Kivity committed Jun 10, 2009
1 parent 36752c9 commit 8db3baa
Showing 1 changed file with 6 additions and 5 deletions.
11 changes: 6 additions & 5 deletions arch/x86/kvm/x86.c
Original file line number Diff line number Diff line change
Expand Up @@ -3142,7 +3142,10 @@ 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;
Expand Down Expand Up @@ -3249,10 +3252,8 @@ 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);
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