linux/include/xen/privcmd.h
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   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>
  37#include <linux/compiler.h>
  38
  39typedef unsigned long xen_pfn_t;
  40
  41struct privcmd_hypercall {
  42        __u64 op;
  43        __u64 arg[5];
  44};
  45
  46struct privcmd_mmap_entry {
  47        __u64 va;
  48        __u64 mfn;
  49        __u64 npages;
  50};
  51
  52struct privcmd_mmap {
  53        int num;
  54        domid_t dom; /* target domain */
  55        struct privcmd_mmap_entry __user *entry;
  56};
  57
  58struct privcmd_mmapbatch {
  59        int num;     /* number of pages to populate */
  60        domid_t dom; /* target domain */
  61        __u64 addr;  /* virtual address */
  62        xen_pfn_t __user *arr; /* array of mfns - top nibble set on err */
  63};
  64
  65/*
  66 * @cmd: IOCTL_PRIVCMD_HYPERCALL
  67 * @arg: &privcmd_hypercall_t
  68 * Return: Value returned from execution of the specified hypercall.
  69 */
  70#define IOCTL_PRIVCMD_HYPERCALL                                 \
  71        _IOC(_IOC_NONE, 'P', 0, sizeof(struct privcmd_hypercall))
  72#define IOCTL_PRIVCMD_MMAP                                      \
  73        _IOC(_IOC_NONE, 'P', 2, sizeof(struct privcmd_mmap))
  74#define IOCTL_PRIVCMD_MMAPBATCH                                 \
  75        _IOC(_IOC_NONE, 'P', 3, sizeof(struct privcmd_mmapbatch))
  76
  77#endif /* __LINUX_PUBLIC_PRIVCMD_H__ */
  78
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