diff --git a/drivers/kvm/ioapic.c b/drivers/kvm/ioapic.c
index 0feae6f..e7debfa 100644
--- a/drivers/kvm/ioapic.c
+++ b/drivers/kvm/ioapic.c
@@ -360,6 +360,11 @@
 	case IOAPIC_REG_WINDOW:
 		ioapic_write_indirect(ioapic, data);
 		break;
+#ifdef	CONFIG_IA64
+	case IOAPIC_REG_EOI:
+		kvm_ioapic_update_eoi(ioapic, data);
+		break;
+#endif
 
 	default:
 		break;