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) 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__ */ 88