1/* $NetBSD: xenio3.h,v 1.2 2008/02/17 16:21:19 bouyer Exp $ */
2/******************************************************************************
3 * evtchn.h
4 *
5 * Interface to /dev/xen/evtchn.
6 *
7 * Copyright (c) 2003-2005, K A Fraser
8 *
9 * This file may be distributed separately from the Linux kernel, or
10 * incorporated into other software packages, subject to the following license:
11 *
12 * Permission is hereby granted, free of charge, to any person obtaining a copy
13 * of this source file (the "Software"), to deal in the Software without
14 * restriction, including without limitation the rights to use, copy, modify,
15 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
16 * and to permit persons to whom the Software is furnished to do so, subject to
17 * the following conditions:
18 *
19 * The above copyright notice and this permission notice shall be included in
20 * all copies or substantial portions of the Software.
21 *
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
25 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
27 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
28 * IN THE SOFTWARE.
29 */
30
31#ifndef __XEN_XENIO3_H__
32#define __XEN_XENIO3_H__
33
34/*
35 * Bind a fresh port to VIRQ @virq.
36 * Return allocated port.
37 */
38#define IOCTL_EVTCHN_BIND_VIRQ				\
39	_IOWR('E', 4, struct ioctl_evtchn_bind_virq)
40struct ioctl_evtchn_bind_virq {
41	unsigned int virq;
42	unsigned int port;
43};
44
45/*
46 * Bind a fresh port to remote <@remote_domain, @remote_port>.
47 * Return allocated port.
48 */
49#define IOCTL_EVTCHN_BIND_INTERDOMAIN			\
50	_IOWR('E', 5, struct ioctl_evtchn_bind_interdomain)
51struct ioctl_evtchn_bind_interdomain {
52	unsigned int remote_domain, remote_port;
53	unsigned int port;
54};
55
56/*
57 * Allocate a fresh port for binding to @remote_domain.
58 * Return allocated port.
59 */
60#define IOCTL_EVTCHN_BIND_UNBOUND_PORT			\
61	_IOWR('E', 6, struct ioctl_evtchn_bind_unbound_port)
62struct ioctl_evtchn_bind_unbound_port {
63	unsigned int remote_domain;
64	unsigned int port;
65};
66
67/*
68 * Unbind previously allocated @port.
69 */
70#define IOCTL_EVTCHN_UNBIND				\
71	_IOW('E', 7, struct ioctl_evtchn_unbind)
72struct ioctl_evtchn_unbind {
73	unsigned int port;
74};
75
76/*
77 * Send event to previously allocated @port.
78 */
79#define IOCTL_EVTCHN_NOTIFY				\
80	_IOW('E', 8, struct ioctl_evtchn_notify)
81struct ioctl_evtchn_notify {
82	unsigned int port;
83};
84
85/* Clear and reinitialise the event buffer. Clear error condition. */
86#define IOCTL_EVTCHN_RESET				\
87	_IO('E', 9)
88
89#endif /* __XEN_XENIO3_H__ */
90