KVM: Move apic timer interrupt backlog processing to common code

Beside the obvious goodness of making code more common, this prevents
a livelock with the next patch which moves interrupt injection out of the
critical section.

Signed-off-by: Avi Kivity <avi@qumranet.com>

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 5fd2864..4c96817 100644 (file)
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -2144,6 +2144,8 @@ again:
        if (unlikely(r))
                goto out;
 
+       kvm_inject_pending_timer_irqs(vcpu);
+
        preempt_disable();
 
        kvm_x86_ops->prepare_guest_switch(vcpu);

diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index 7b21576..ef068d2 100644 (file)
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -1355,7 +1355,6 @@ static void svm_intr_assist(struct kvm_vcpu *vcpu)
        struct vmcb *vmcb = svm->vmcb;
        int intr_vector = -1;
 
-       kvm_inject_pending_timer_irqs(vcpu);
        if ((vmcb->control.exit_int_info & SVM_EVTINJ_VALID) &&
            ((vmcb->control.exit_int_info & SVM_EVTINJ_TYPE_MASK) == 0)) {
                intr_vector = vmcb->control.exit_int_info &

diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index 6955580..9f77ddb 100644 (file)
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -2191,7 +2191,6 @@ static void vmx_intr_assist(struct kvm_vcpu *vcpu)
        int has_ext_irq, interrupt_window_open;
        int vector;
 
-       kvm_inject_pending_timer_irqs(vcpu);
        update_tpr_threshold(vcpu);
 
        has_ext_irq = kvm_cpu_has_interrupt(vcpu);