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