[PATCH] KVM: Simplify test for interrupt window

No need to test for rflags.if as both VT and SVM specs assure us that on exit
caused from interrupt window opening, 'if' is set.

Signed-off-by: Dor Laor <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index af1e7b3f91719356321fce0bddea00c0603e0706..ccc06b1b91b56e5d198b78e3c70e0f4a211b19d8 100644 (file)
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -1206,8 +1206,7 @@ static int interrupt_window_interception(struct kvm_vcpu *vcpu,
         * possible
         */
        if (kvm_run->request_interrupt_window &&
-           !vcpu->irq_summary &&
-           (vcpu->svm->vmcb->save.rflags & X86_EFLAGS_IF)) {
+           !vcpu->irq_summary) {
                ++kvm_stat.irq_window_exits;
                kvm_run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN;
                return 0;

diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index e6ea76cdfdbd8c4d3ecde7418ec152bc5fe7ffb7..d4701cb4c65424e6b5d9267f2347c42445632ccf 100644 (file)
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -1604,8 +1604,7 @@ static int handle_interrupt_window(struct kvm_vcpu *vcpu,
         * possible
         */
        if (kvm_run->request_interrupt_window &&
-           !vcpu->irq_summary &&
-           (vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_IF)) {
+           !vcpu->irq_summary) {
                kvm_run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN;
                ++kvm_stat.irq_window_exits;
                return 0;