git://bbs.cooldavid.org / net-next-2.6.git / blame
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| f7116284 IC |
1 | /****************************************************************************** |
| 2 | * evtchn.h | |
| 3 | * | |
| 4 | * Interface to /dev/xen/evtchn. | |
| 5 | * | |
| 6 | * Copyright (c) 2003-2005, K A Fraser | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU General Public License version 2 | |
| 10 | * as published by the Free Software Foundation; or, when distributed | |
| 11 | * separately from the Linux kernel or incorporated into other | |
| 12 | * software packages, subject to the following license: | |
| 13 | * | |
| 14 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| 15 | * of this source file (the "Software"), to deal in the Software without | |
| 16 | * restriction, including without limitation the rights to use, copy, modify, | |
| 17 | * merge, publish, distribute, sublicense, and/or sell copies of the Software, | |
| 18 | * and to permit persons to whom the Software is furnished to do so, subject to | |
| 19 | * the following conditions: | |
| 20 | * | |
| 21 | * The above copyright notice and this permission notice shall be included in | |
| 22 | * all copies or substantial portions of the Software. | |
| 23 | * | |
| 24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 25 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 26 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| 27 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| 28 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
| 29 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
| 30 | * IN THE SOFTWARE. | |
| 31 | */ | |
| 32 | ||
| 33 | #ifndef __LINUX_PUBLIC_EVTCHN_H__ | |
| 34 | #define __LINUX_PUBLIC_EVTCHN_H__ | |
| 35 | ||
| 36 | /* | |
| 37 | * Bind a fresh port to VIRQ @virq. | |
| 38 | * Return allocated port. | |
| 39 | */ | |
| 40 | #define IOCTL_EVTCHN_BIND_VIRQ \ | |
| 41 | _IOC(_IOC_NONE, 'E', 0, sizeof(struct ioctl_evtchn_bind_virq)) | |
| 42 | struct ioctl_evtchn_bind_virq { | |
| 43 | unsigned int virq; | |
| 44 | }; | |
| 45 | ||
| 46 | /* | |
| 47 | * Bind a fresh port to remote <@remote_domain, @remote_port>. | |
| 48 | * Return allocated port. | |
| 49 | */ | |
| 50 | #define IOCTL_EVTCHN_BIND_INTERDOMAIN \ | |
| 51 | _IOC(_IOC_NONE, 'E', 1, sizeof(struct ioctl_evtchn_bind_interdomain)) | |
| 52 | struct ioctl_evtchn_bind_interdomain { | |
| 53 | unsigned int remote_domain, remote_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 | _IOC(_IOC_NONE, 'E', 2, sizeof(struct ioctl_evtchn_bind_unbound_port)) | |
| 62 | struct ioctl_evtchn_bind_unbound_port { | |
| 63 | unsigned int remote_domain; | |
| 64 | }; | |
| 65 | ||
| 66 | /* | |
| 67 | * Unbind previously allocated @port. | |
| 68 | */ | |
| 69 | #define IOCTL_EVTCHN_UNBIND \ | |
| 70 | _IOC(_IOC_NONE, 'E', 3, sizeof(struct ioctl_evtchn_unbind)) | |
| 71 | struct ioctl_evtchn_unbind { | |
| 72 | unsigned int port; | |
| 73 | }; | |
| 74 | ||
| 75 | /* | |
| 76 | * Unbind previously allocated @port. | |
| 77 | */ | |
| 78 | #define IOCTL_EVTCHN_NOTIFY \ | |
| 79 | _IOC(_IOC_NONE, 'E', 4, sizeof(struct ioctl_evtchn_notify)) | |
| 80 | struct ioctl_evtchn_notify { | |
| 81 | unsigned int port; | |
| 82 | }; | |
| 83 | ||
| 84 | /* Clear and reinitialise the event buffer. Clear error condition. */ | |
| 85 | #define IOCTL_EVTCHN_RESET \ | |
| 86 | _IOC(_IOC_NONE, 'E', 5, 0) | |
| 87 | ||
| 88 | #endif /* __LINUX_PUBLIC_EVTCHN_H__ */ |