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 * $FreeBSD$ 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) 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 */ 48#define IOCTL_EVTCHN_BIND_INTERDOMAIN \ 49 _IOWR('E', 5, struct ioctl_evtchn_bind_interdomain) 50struct 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) 60struct 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) 70struct 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) 79struct 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__ */ 88