2 * irq_comm.c: Common API for in kernel interrupt controller
3 * Copyright (c) 2007, Intel Corporation.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
16 * Place - Suite 330, Boston, MA 02111-1307 USA.
18 * Yaozu (Eddie) Dong <Eddie.dong@intel.com>
22 #include <linux/kvm_host.h>
27 /* This should be called with the kvm->lock mutex held */
28 void kvm_set_irq(struct kvm *kvm, int irq, int level)
30 /* Not possible to detect if the guest uses the PIC or the
31 * IOAPIC. So set the bit in both. The guest will ignore
32 * writes to the unused one.
34 kvm_ioapic_set_irq(kvm->arch.vioapic, irq, level);
36 kvm_pic_set_irq(pic_irqchip(kvm), irq, level);
40 void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi)
42 struct kvm_irq_ack_notifier *kian;
45 hlist_for_each_entry(kian, n, &kvm->arch.irq_ack_notifier_list, link)
47 kian->irq_acked(kian);
50 void kvm_register_irq_ack_notifier(struct kvm *kvm,
51 struct kvm_irq_ack_notifier *kian)
53 hlist_add_head(&kian->link, &kvm->arch.irq_ack_notifier_list);
56 void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
57 struct kvm_irq_ack_notifier *kian)
59 hlist_del(&kian->link);