1 | /****************************************************************************** |
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2 | * evtchn.h |
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3 | * |
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4 | * Interface to /dev/xen/evtchn. |
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5 | * |
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6 | * Copyright (c) 2003-2005, K A Fraser |
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7 | * |
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8 | * This program is free software; you can redistribute it and/or |
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9 | * modify it under the terms of the GNU General Public License version 2 |
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10 | * as published by the Free Software Foundation; or, when distributed |
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11 | * separately from the Linux kernel or incorporated into other |
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12 | * software packages, subject to the following license: |
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13 | * |
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14 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
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15 | * of this source file (the "Software"), to deal in the Software without |
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16 | * restriction, including without limitation the rights to use, copy, modify, |
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17 | * merge, publish, distribute, sublicense, and/or sell copies of the Software, |
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18 | * and to permit persons to whom the Software is furnished to do so, subject to |
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19 | * the following conditions: |
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20 | * |
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21 | * The above copyright notice and this permission notice shall be included in |
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22 | * all copies or substantial portions of the Software. |
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23 | * |
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24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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25 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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26 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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27 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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28 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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29 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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30 | * IN THE SOFTWARE. |
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31 | */ |
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32 | |
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33 | #ifndef __LINUX_PUBLIC_EVTCHN_H__ |
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34 | #define __LINUX_PUBLIC_EVTCHN_H__ |
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35 | |
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36 | /* |
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37 | * Bind a fresh port to VIRQ @virq. |
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38 | * Return allocated port. |
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39 | */ |
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40 | #define IOCTL_EVTCHN_BIND_VIRQ \ |
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41 | _IOC(_IOC_NONE, 'E', 0, sizeof(struct ioctl_evtchn_bind_virq)) |
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42 | struct ioctl_evtchn_bind_virq { |
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43 | unsigned int virq; |
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44 | }; |
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45 | |
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46 | /* |
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47 | * Bind a fresh port to remote <@remote_domain, @remote_port>. |
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48 | * Return allocated port. |
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49 | */ |
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50 | #define IOCTL_EVTCHN_BIND_INTERDOMAIN \ |
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51 | _IOC(_IOC_NONE, 'E', 1, sizeof(struct ioctl_evtchn_bind_interdomain)) |
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52 | struct ioctl_evtchn_bind_interdomain { |
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53 | unsigned int remote_domain, remote_port; |
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54 | }; |
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55 | |
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56 | /* |
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57 | * Allocate a fresh port for binding to @remote_domain. |
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58 | * Return allocated port. |
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59 | */ |
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60 | #define IOCTL_EVTCHN_BIND_UNBOUND_PORT \ |
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61 | _IOC(_IOC_NONE, 'E', 2, sizeof(struct ioctl_evtchn_bind_unbound_port)) |
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62 | struct ioctl_evtchn_bind_unbound_port { |
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63 | unsigned int remote_domain; |
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64 | }; |
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65 | |
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66 | /* |
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67 | * Unbind previously allocated @port. |
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68 | */ |
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69 | #define IOCTL_EVTCHN_UNBIND \ |
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70 | _IOC(_IOC_NONE, 'E', 3, sizeof(struct ioctl_evtchn_unbind)) |
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71 | struct ioctl_evtchn_unbind { |
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72 | unsigned int port; |
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73 | }; |
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74 | |
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75 | /* |
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76 | * Unbind previously allocated @port. |
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77 | */ |
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78 | #define IOCTL_EVTCHN_NOTIFY \ |
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79 | _IOC(_IOC_NONE, 'E', 4, sizeof(struct ioctl_evtchn_notify)) |
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80 | struct ioctl_evtchn_notify { |
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81 | unsigned int port; |
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82 | }; |
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83 | |
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84 | /* Clear and reinitialise the event buffer. Clear error condition. */ |
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85 | #define IOCTL_EVTCHN_RESET \ |
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86 | _IOC(_IOC_NONE, 'E', 5, 0) |
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87 | |
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88 | #endif /* __LINUX_PUBLIC_EVTCHN_H__ */ |
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