1/* $NetBSD: xenio3.h,v 1.4 2015/09/07 03:49:46 dholland 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#include <sys/ioccom.h>
35
36/*
37 * Bind a fresh port to VIRQ @virq.
38 * Return allocated port.
39 */
40#define IOCTL_EVTCHN_BIND_VIRQ \
41 _IOWR('E', 4, struct ioctl_evtchn_bind_virq)
42struct ioctl_evtchn_bind_virq {
43 unsigned int virq;
44 unsigned int port;
45};
46
47/*
48 * Bind a fresh port to remote <@remote_domain, @remote_port>.
49 * Return allocated port.
50 */
51#define IOCTL_EVTCHN_BIND_INTERDOMAIN \
52 _IOWR('E', 5, struct ioctl_evtchn_bind_interdomain)
53struct ioctl_evtchn_bind_interdomain {
54 unsigned int remote_domain, remote_port;
55 unsigned int port;
56};
57
58/*
59 * Allocate a fresh port for binding to @remote_domain.
60 * Return allocated port.
61 */
62#define IOCTL_EVTCHN_BIND_UNBOUND_PORT \
63 _IOWR('E', 6, struct ioctl_evtchn_bind_unbound_port)
64struct ioctl_evtchn_bind_unbound_port {
65 unsigned int remote_domain;
66 unsigned int port;
67};
68
69/*
70 * Unbind previously allocated @port.
71 */
72#define IOCTL_EVTCHN_UNBIND \
73 _IOW('E', 7, struct ioctl_evtchn_unbind)
74struct ioctl_evtchn_unbind {
75 unsigned int port;
76};
77
78/*
79 * Send event to previously allocated @port.
80 */
81#define IOCTL_EVTCHN_NOTIFY \
82 _IOW('E', 8, struct ioctl_evtchn_notify)
83struct ioctl_evtchn_notify {
84 unsigned int port;
85};
86
87/* Clear and reinitialise the event buffer. Clear error condition. */
88#define IOCTL_EVTCHN_RESET \
89 _IO('E', 9)
90
91#endif /* __XEN_XENIO3_H__ */