[linux-2.6-block.git] / include / xen / privcmd.h

/******************************************************************************
 * privcmd.h
 *
 * Interface to /proc/xen/privcmd.
 *
 * 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_PRIVCMD_H__
#define __LINUX_PUBLIC_PRIVCMD_H__

#include <linux/types.h>
#include <linux/compiler.h>
#include <xen/interface/xen.h>

struct privcmd_hypercall {
	__u64 op;
	__u64 arg[5];
};

struct privcmd_mmap_entry {
	__u64 va;
	__u64 mfn;
	__u64 npages;
};

struct privcmd_mmap {
	int num;
	domid_t dom; /* target domain */
	struct privcmd_mmap_entry __user *entry;
};

struct privcmd_mmapbatch {
	int num;     /* number of pages to populate */
	domid_t dom; /* target domain */
	__u64 addr;  /* virtual address */
	xen_pfn_t __user *arr; /* array of mfns - top nibble set on err */
};

/*
 * @cmd: IOCTL_PRIVCMD_HYPERCALL
 * @arg: &privcmd_hypercall_t
 * Return: Value returned from execution of the specified hypercall.
 */
#define IOCTL_PRIVCMD_HYPERCALL					\
	_IOC(_IOC_NONE, 'P', 0, sizeof(struct privcmd_hypercall))
#define IOCTL_PRIVCMD_MMAP					\
	_IOC(_IOC_NONE, 'P', 2, sizeof(struct privcmd_mmap))
#define IOCTL_PRIVCMD_MMAPBATCH					\
	_IOC(_IOC_NONE, 'P', 3, sizeof(struct privcmd_mmapbatch))

#endif /* __LINUX_PUBLIC_PRIVCMD_H__ */
Commit	Line	Data
1c5de193 JF	1	/******************************************************************************
	2	* privcmd.h
	3	*
	4	* Interface to /proc/xen/privcmd.
	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_PRIVCMD_H__
	34	#define __LINUX_PUBLIC_PRIVCMD_H__
	35
	36	#include <linux/types.h>
744f9f10	37	#include <linux/compiler.h>
4d9310e3	38	#include <xen/interface/xen.h>
1c5de193	39
1c5de193 JF	40	struct privcmd_hypercall {
	41	__u64 op;
	42	__u64 arg[5];
	43	};
	44
	45	struct privcmd_mmap_entry {
	46	__u64 va;
	47	__u64 mfn;
	48	__u64 npages;
	49	};
	50
	51	struct privcmd_mmap {
	52	int num;
	53	domid_t dom; /* target domain */
	54	struct privcmd_mmap_entry __user *entry;
	55	};
	56
	57	struct privcmd_mmapbatch {
	58	int num; /* number of pages to populate */
	59	domid_t dom; /* target domain */
	60	__u64 addr; /* virtual address */
	61	xen_pfn_t __user arr; / array of mfns - top nibble set on err */
	62	};
	63
	64	/*
	65	* @cmd: IOCTL_PRIVCMD_HYPERCALL
	66	* @arg: &privcmd_hypercall_t
	67	* Return: Value returned from execution of the specified hypercall.
	68	*/
	69	#define IOCTL_PRIVCMD_HYPERCALL \
	70	_IOC(_IOC_NONE, 'P', 0, sizeof(struct privcmd_hypercall))
	71	#define IOCTL_PRIVCMD_MMAP \
	72	_IOC(_IOC_NONE, 'P', 2, sizeof(struct privcmd_mmap))
	73	#define IOCTL_PRIVCMD_MMAPBATCH \
	74	_IOC(_IOC_NONE, 'P', 3, sizeof(struct privcmd_mmapbatch))
	75
	76	#endif /* __LINUX_PUBLIC_PRIVCMD_H__ */