+/*
+ * check if there is pending interrupt from
+ * non-APIC source without intack.
+ */
+static int kvm_cpu_has_extint(struct kvm_vcpu *v)
+{
+ if (kvm_apic_accept_pic_intr(v))
+ return pic_irqchip(v->kvm)->output; /* PIC */
+ else
+ return 0;
+}
+
+/*
+ * check if there is injectable interrupt:
+ * when virtual interrupt delivery enabled,
+ * interrupt from apic will handled by hardware,
+ * we don't need to check it here.
+ */
+int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v)
+{
+ if (!irqchip_in_kernel(v->kvm))
+ return v->arch.interrupt.pending;
+
+ if (kvm_cpu_has_extint(v))
+ return 1;
+
+ if (kvm_apic_vid_enabled(v->kvm))
+ return 0;
+
+ return kvm_apic_has_interrupt(v) != -1; /* LAPIC */
+}
+