FreeBSD/Linux Kernel Cross Reference
sys/xen/evtchn.h
1 /******************************************************************************
2 * evtchn.h
3 *
4 * Interface to /dev/xen/evtchn.
5 *
6 * Copyright (c) 2003-2005, K A Fraser
7 *
8 * This file may be distributed separately from the Linux kernel, or
9 * incorporated into other software packages, subject to the following license:
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a copy
12 * of this source file (the "Software"), to deal in the Software without
13 * restriction, including without limitation the rights to use, copy, modify,
14 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
15 * and to permit persons to whom the Software is furnished to do so, subject to
16 * the following conditions:
17 *
18 * The above copyright notice and this permission notice shall be included in
19 * all copies or substantial portions of the Software.
20 *
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
24 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
27 * IN THE SOFTWARE.
28 *
29 * $FreeBSD: releng/11.2/sys/xen/evtchn.h 255040 2013-08-29 19:52:18Z gibbs $
30 */
31
32 #ifndef __XEN_EVTCHN_H__
33 #define __XEN_EVTCHN_H__
34
35 /*
36 * Bind a fresh port to VIRQ @virq.
37 */
38 #define IOCTL_EVTCHN_BIND_VIRQ \
39 _IOWR('E', 4, struct ioctl_evtchn_bind_virq)
40 struct 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 */
48 #define IOCTL_EVTCHN_BIND_INTERDOMAIN \
49 _IOWR('E', 5, struct ioctl_evtchn_bind_interdomain)
50 struct ioctl_evtchn_bind_interdomain {
51 unsigned int remote_domain, remote_port;
52 unsigned int port;
53 };
54
55 /*
56 * Allocate a fresh port for binding to @remote_domain.
57 */
58 #define IOCTL_EVTCHN_BIND_UNBOUND_PORT \
59 _IOWR('E', 6, struct ioctl_evtchn_bind_unbound_port)
60 struct ioctl_evtchn_bind_unbound_port {
61 unsigned int remote_domain;
62 unsigned int port;
63 };
64
65 /*
66 * Unbind previously allocated @port.
67 */
68 #define IOCTL_EVTCHN_UNBIND \
69 _IOW('E', 7, struct ioctl_evtchn_unbind)
70 struct ioctl_evtchn_unbind {
71 unsigned int port;
72 };
73
74 /*
75 * Send event to previously allocated @port.
76 */
77 #define IOCTL_EVTCHN_NOTIFY \
78 _IOW('E', 8, struct ioctl_evtchn_notify)
79 struct ioctl_evtchn_notify {
80 unsigned int port;
81 };
82
83 /* Clear and reinitialise the event buffer. Clear error condition. */
84 #define IOCTL_EVTCHN_RESET \
85 _IO('E', 9)
86
87 #endif /* __XEN_EVTCHN_H__ */
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