The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/xen/evtchn.h

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    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/10.4/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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