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/******************************************************************************
 * privcmd.h
 * 
 * Interface to /proc/xen/privcmd.
 * 
 * Copyright (c) 2003-2005, K A Fraser
 * 
 * This file may be 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__

#ifndef __user
#define __user
#endif

typedef struct privcmd_hypercall
{
	unsigned long op;
	unsigned long arg[5];
} privcmd_hypercall_t;

typedef struct privcmd_mmap_entry {
	unsigned long va;
	unsigned long mfn;
	unsigned long npages;
} privcmd_mmap_entry_t; 

typedef struct privcmd_mmap {
	int num;
	domid_t dom; /* target domain */
	privcmd_mmap_entry_t __user *entry;
} privcmd_mmap_t; 

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

typedef struct privcmd_blkmsg
{
	unsigned long op;
	void         *buf;
	int           buf_size;
} privcmd_blkmsg_t;

/*
 * @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(privcmd_hypercall_t))
#define IOCTL_PRIVCMD_MMAP					\
	_IOC(_IOC_NONE, 'P', 2, sizeof(privcmd_mmap_t))
#define IOCTL_PRIVCMD_MMAPBATCH					\
	_IOC(_IOC_NONE, 'P', 3, sizeof(privcmd_mmapbatch_t))

#endif /* __LINUX_PUBLIC_PRIVCMD_H__ */

/*
 * Local variables:
 *  c-file-style: "linux"
 *  indent-tabs-mode: t
 *  c-indent-level: 8
 *  c-basic-offset: 8
 *  tab-width: 8
 * End:
 */