commit 44944d4d28948c71b110b09a2e924e505cd39e8b
author Yang Zhang <yang.z.zhang@Intel.com> Sun Apr 07 08:25:18 2013 +0800
committer Gleb Natapov <gleb@redhat.com> Sun Apr 07 13:55:49 2013 +0300
tree 6d0b96165c11414c98edd14501f016627687d7dd
parent 99437a2782730ec8c7e6cfebb6143d00b091e4a8

KVM: Call kvm_apic_match_dest() to check destination vcpu

For a given vcpu, kvm_apic_match_dest() will tell you whether
the vcpu in the destination list quickly. Drop kvm_calculate_eoi_exitmap()
and use kvm_apic_match_dest() instead.

Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>

virt/kvm/ioapic.c

diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 5ba005c..914cbe0 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -124,7 +124,6 @@
 {
 	struct kvm_ioapic *ioapic = vcpu->kvm->arch.vioapic;
 	union kvm_ioapic_redirect_entry *e;
-	struct kvm_lapic_irq irqe;
 	int index;
 
 	spin_lock(&ioapic->lock);
@@ -135,11 +134,9 @@
 			(e->fields.trig_mode == IOAPIC_LEVEL_TRIG ||
 			 kvm_irq_has_notifier(ioapic->kvm, KVM_IRQCHIP_IOAPIC,
 				 index))) {
-			irqe.dest_id = e->fields.dest_id;
-			irqe.vector = e->fields.vector;
-			irqe.dest_mode = e->fields.dest_mode;
-			irqe.delivery_mode = e->fields.delivery_mode << 8;
-			kvm_calculate_eoi_exitmap(vcpu, &irqe, eoi_exit_bitmap);
+			if (kvm_apic_match_dest(vcpu, NULL, 0,
+				e->fields.dest_id, e->fields.dest_mode))
+				__set_bit(e->fields.vector, (unsigned long *)eoi_exit_bitmap);
 		}
 	}
 	spin_unlock(&ioapic->lock);