105 lines
3.5 KiB
C
105 lines
3.5 KiB
C
|
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR MIT) */
|
||
|
|
/******************************************************************************
|
||
|
|
* evtchn.h
|
||
|
|
*
|
||
|
|
* Interface to /dev/xen/evtchn.
|
||
|
|
*
|
||
|
|
* Copyright (c) 2003-2005, K A Fraser
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License version 2
|
||
|
|
* as published by the Free Software Foundation; or, when distributed
|
||
|
|
* separately from the Linux kernel or incorporated into other
|
||
|
|
* software packages, subject to the following license:
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
* of this source file (the "Software"), to deal in the Software without
|
||
|
|
* restriction, including without limitation the rights to use, copy, modify,
|
||
|
|
* merge, publish, distribute, sublicense, and/or sell copies of the Software,
|
||
|
|
* and to permit persons to whom the Software is furnished to do so, subject to
|
||
|
|
* the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in
|
||
|
|
* all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||
|
|
* IN THE SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __LINUX_PUBLIC_EVTCHN_H__
|
||
|
|
#define __LINUX_PUBLIC_EVTCHN_H__
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Bind a fresh port to VIRQ @virq.
|
||
|
|
* Return allocated port.
|
||
|
|
*/
|
||
|
|
#define IOCTL_EVTCHN_BIND_VIRQ \
|
||
|
|
_IOC(_IOC_NONE, 'E', 0, sizeof(struct ioctl_evtchn_bind_virq))
|
||
|
|
struct ioctl_evtchn_bind_virq {
|
||
|
|
unsigned int virq;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Bind a fresh port to remote <@remote_domain, @remote_port>.
|
||
|
|
* Return allocated port.
|
||
|
|
*/
|
||
|
|
#define IOCTL_EVTCHN_BIND_INTERDOMAIN \
|
||
|
|
_IOC(_IOC_NONE, 'E', 1, sizeof(struct ioctl_evtchn_bind_interdomain))
|
||
|
|
struct ioctl_evtchn_bind_interdomain {
|
||
|
|
unsigned int remote_domain, remote_port;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Allocate a fresh port for binding to @remote_domain.
|
||
|
|
* Return allocated port.
|
||
|
|
*/
|
||
|
|
#define IOCTL_EVTCHN_BIND_UNBOUND_PORT \
|
||
|
|
_IOC(_IOC_NONE, 'E', 2, sizeof(struct ioctl_evtchn_bind_unbound_port))
|
||
|
|
struct ioctl_evtchn_bind_unbound_port {
|
||
|
|
unsigned int remote_domain;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Unbind previously allocated @port.
|
||
|
|
*/
|
||
|
|
#define IOCTL_EVTCHN_UNBIND \
|
||
|
|
_IOC(_IOC_NONE, 'E', 3, sizeof(struct ioctl_evtchn_unbind))
|
||
|
|
struct ioctl_evtchn_unbind {
|
||
|
|
unsigned int port;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Unbind previously allocated @port.
|
||
|
|
*/
|
||
|
|
#define IOCTL_EVTCHN_NOTIFY \
|
||
|
|
_IOC(_IOC_NONE, 'E', 4, sizeof(struct ioctl_evtchn_notify))
|
||
|
|
struct ioctl_evtchn_notify {
|
||
|
|
unsigned int port;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Clear and reinitialise the event buffer. Clear error condition. */
|
||
|
|
#define IOCTL_EVTCHN_RESET \
|
||
|
|
_IOC(_IOC_NONE, 'E', 5, 0)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Restrict this file descriptor so that it can only be used to bind
|
||
|
|
* new interdomain events from one domain.
|
||
|
|
*
|
||
|
|
* Once a file descriptor has been restricted it cannot be
|
||
|
|
* de-restricted, and must be closed and re-opened. Event channels
|
||
|
|
* which were bound before restricting remain bound afterwards, and
|
||
|
|
* can be notified as usual.
|
||
|
|
*/
|
||
|
|
#define IOCTL_EVTCHN_RESTRICT_DOMID \
|
||
|
|
_IOC(_IOC_NONE, 'E', 6, sizeof(struct ioctl_evtchn_restrict_domid))
|
||
|
|
struct ioctl_evtchn_restrict_domid {
|
||
|
|
domid_t domid;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* __LINUX_PUBLIC_EVTCHN_H__ */
|