KVM: Fix interrupt unhalting a vcpu when it shouldn't
kvm_vcpu_block() unhalts vpu on an interrupt/timer without checking
if interrupt window is actually opened.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index da6461d..b9e06b0 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2490,6 +2490,12 @@
GUEST_INTR_STATE_MOV_SS)));
}
+static int vmx_interrupt_allowed(struct kvm_vcpu *vcpu)
+{
+ vmx_update_window_states(vcpu);
+ return vcpu->arch.interrupt_window_open;
+}
+
static void do_interrupt_requests(struct kvm_vcpu *vcpu,
struct kvm_run *kvm_run)
{
@@ -3691,7 +3697,7 @@
.exception_injected = vmx_exception_injected,
.inject_pending_irq = vmx_intr_assist,
.inject_pending_vectors = do_interrupt_requests,
-
+ .interrupt_allowed = vmx_interrupt_allowed,
.set_tss_addr = vmx_set_tss_addr,
.get_tdp_level = get_ept_level,
.get_mt_mask_shift = vmx_get_mt_mask_shift,