/*
* 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 pending interrupt from
* non-APIC source without intack.
*/
static int kvm_cpu_has_extint(struct kvm_vcpu *v)
{
u8 accept = kvm_apic_accept_pic_intr(v);
if (accept) {
if (irqchip_split(v->kvm))
return pending_userspace_extint(v);
else
return v->kvm->arch.vpic->output;
} else
return 0;
}
/*
* check if there is pending interrupt without
* intack.
*/
int kvm_cpu_has_interrupt(struct kvm_vcpu *v)
{
struct kvm_pic *s;
if (kvm_apic_has_interrupt(v) == -1) { /* LAPIC */
if (kvm_apic_accept_pic_intr(v)) {
s = pic_irqchip(v->kvm); /* PIC */
return s->output;
} else
return 0;
}
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;
}
/*
* check if there is pending interrupt without
* intack.
*/
int kvm_cpu_has_interrupt(struct kvm_vcpu *v)
{
struct kvm_pic *s;
if (!irqchip_in_kernel(v->kvm))
return v->arch.interrupt.pending;
if (kvm_apic_has_interrupt(v) == -1) { /* LAPIC */
if (kvm_apic_accept_pic_intr(v)) {
s = pic_irqchip(v->kvm); /* PIC */
return s->output;
} else
return 0;
}
return 1;
}
