KVM: APIC: get rid of deliver_bitmask
Deliver interrupt during destination matching loop.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Acked-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 43969bb..1eddae9 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -142,58 +142,33 @@
}
}
-int ioapic_deliver_entry(struct kvm *kvm, union kvm_ioapic_redirect_entry *e)
-{
- DECLARE_BITMAP(deliver_bitmask, KVM_MAX_VCPUS);
- int i, r = -1;
-
- kvm_get_intr_delivery_bitmask(kvm, NULL, e->fields.dest_id,
- e->fields.dest_mode,
- e->fields.delivery_mode == IOAPIC_LOWEST_PRIORITY,
- 0, deliver_bitmask);
-
- if (find_first_bit(deliver_bitmask, KVM_MAX_VCPUS) >= KVM_MAX_VCPUS) {
- ioapic_debug("no target on destination\n");
- return r;
- }
-
- while ((i = find_first_bit(deliver_bitmask, KVM_MAX_VCPUS))
- < KVM_MAX_VCPUS) {
- struct kvm_vcpu *vcpu = kvm->vcpus[i];
- __clear_bit(i, deliver_bitmask);
- if (vcpu) {
- if (r < 0)
- r = 0;
- r += kvm_apic_set_irq(vcpu, e->fields.vector,
- e->fields.delivery_mode,
- e->fields.trig_mode);
- } else
- ioapic_debug("null destination vcpu: "
- "mask=%x vector=%x delivery_mode=%x\n",
- e->fields.deliver_bitmask,
- e->fields.vector, e->fields.delivery_mode);
- }
- return r;
-}
-
static int ioapic_deliver(struct kvm_ioapic *ioapic, int irq)
{
- union kvm_ioapic_redirect_entry entry = ioapic->redirtbl[irq];
+ union kvm_ioapic_redirect_entry *entry = &ioapic->redirtbl[irq];
+ struct kvm_lapic_irq irqe;
ioapic_debug("dest=%x dest_mode=%x delivery_mode=%x "
"vector=%x trig_mode=%x\n",
- entry.fields.dest, entry.fields.dest_mode,
- entry.fields.delivery_mode, entry.fields.vector,
- entry.fields.trig_mode);
+ entry->fields.dest, entry->fields.dest_mode,
+ entry->fields.delivery_mode, entry->fields.vector,
+ entry->fields.trig_mode);
+
+ irqe.dest_id = entry->fields.dest_id;
+ irqe.vector = entry->fields.vector;
+ irqe.dest_mode = entry->fields.dest_mode;
+ irqe.trig_mode = entry->fields.trig_mode;
+ irqe.delivery_mode = entry->fields.delivery_mode << 8;
+ irqe.level = 1;
+ irqe.shorthand = 0;
#ifdef CONFIG_X86
/* Always delivery PIT interrupt to vcpu 0 */
if (irq == 0) {
- entry.fields.dest_mode = 0; /* Physical mode. */
- entry.fields.dest_id = ioapic->kvm->vcpus[0]->vcpu_id;
+ irqe.dest_mode = 0; /* Physical mode. */
+ irqe.dest_id = ioapic->kvm->vcpus[0]->vcpu_id;
}
#endif
- return ioapic_deliver_entry(ioapic->kvm, &entry);
+ return kvm_irq_delivery_to_apic(ioapic->kvm, NULL, &irqe);
}
int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level)