/* * Read pending interrupt(from non-APIC source) * vector and intack. */ static int kvm_cpu_get_extint(struct kvm_vcpu *v) { if (kvm_cpu_has_extint(v)) { if (irqchip_split(v->kvm)) { int vector = v->arch.pending_external_vector; v->arch.pending_external_vector = -1; return vector; } else return kvm_pic_read_irq(v->kvm); /* PIC */ } else return -1; }
/* * Read pending interrupt vector and intack. */ int kvm_cpu_get_interrupt(struct kvm_vcpu *v) { struct kvm_pic *s; int vector; vector = kvm_get_apic_interrupt(v); /* APIC */ if (vector == -1) { if (kvm_apic_accept_pic_intr(v)) { s = pic_irqchip(v->kvm); s->output = 0; /* PIC */ vector = kvm_pic_read_irq(s); } } return vector; }
/* * Read pending interrupt(from non-APIC source) * vector and intack. */ static int kvm_cpu_get_extint(struct kvm_vcpu *v) { if (kvm_cpu_has_extint(v)) return kvm_pic_read_irq(v->kvm); /* PIC */ return -1; }