KVM: x86: track manually whether an event has been injected

Instead of calling kvm_event_needs_reinjection, track its
future return value in a variable.  This will be useful in
the next patch.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 329bdd2..77b9b4e 100644 (file)
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7717,11 +7717,14 @@ static void update_cr8_intercept(struct kvm_vcpu *vcpu)
 static int inject_pending_event(struct kvm_vcpu *vcpu)
 {
        int r;
+       bool can_inject = true;
 
        /* try to reinject previous events if any */
 
-       if (vcpu->arch.exception.injected)
+       if (vcpu->arch.exception.injected) {
                kvm_x86_ops.queue_exception(vcpu);
+               can_inject = false;
+       }
        /*
         * Do not inject an NMI or interrupt if there is a pending
         * exception.  Exceptions and interrupts are recognized at
@@ -7737,10 +7740,13 @@ static int inject_pending_event(struct kvm_vcpu *vcpu)
         * fully complete the previous instruction.
         */
        else if (!vcpu->arch.exception.pending) {
-               if (vcpu->arch.nmi_injected)
+               if (vcpu->arch.nmi_injected) {
                        kvm_x86_ops.set_nmi(vcpu);
-               else if (vcpu->arch.interrupt.injected)
+                       can_inject = false;
+               } else if (vcpu->arch.interrupt.injected) {
                        kvm_x86_ops.set_irq(vcpu);
+                       can_inject = false;
+               }
        }
 
        WARN_ON_ONCE(vcpu->arch.exception.injected &&
@@ -7790,10 +7796,11 @@ static int inject_pending_event(struct kvm_vcpu *vcpu)
                }
 
                kvm_x86_ops.queue_exception(vcpu);
+               can_inject = false;
        }
 
-       /* Don't consider new event if we re-injected an event */
-       if (kvm_event_needs_reinjection(vcpu))
+       /* Finish re-injection before considering new events */
+       if (!can_inject)
                return 0;
 
        if (vcpu->arch.smi_pending &&