1 /******************************************************************************
2 * SPDX-License-Identifier: MIT OR GPL-2.0-only
6 * Interface to /proc/xen/privcmd.
8 * Copyright (c) 2003-2005, K A Fraser
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License version 2
12 * as published by the Free Software Foundation; or, when distributed
13 * separately from the Linux kernel or incorporated into other
14 * software packages, subject to the following license:
16 * Permission is hereby granted, free of charge, to any person obtaining a copy
17 * of this source file (the "Software"), to deal in the Software without
18 * restriction, including without limitation the rights to use, copy, modify,
19 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
20 * and to permit persons to whom the Software is furnished to do so, subject to
21 * the following conditions:
23 * The above copyright notice and this permission notice shall be included in
24 * all copies or substantial portions of the Software.
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
29 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
30 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
31 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
35 #ifndef __XEN_PRIVCMD_H__
36 #define __XEN_PRIVCMD_H__
38 struct ioctl_privcmd_hypercall
40 unsigned long op; /* hypercall number */
41 unsigned long arg[5]; /* arguments */
42 long retval; /* return value */
45 struct ioctl_privcmd_mmapbatch {
46 int num; /* number of pages to populate */
47 domid_t dom; /* target domain */
48 unsigned long addr; /* virtual address */
49 const xen_pfn_t *arr; /* array of mfns */
50 int *err; /* array of error codes */
53 struct ioctl_privcmd_mmapresource {
54 domid_t dom; /* target domain */
55 unsigned int type; /* type of resource to map */
56 unsigned int id; /* type-specific resource identifier */
57 unsigned int idx; /* the index of the initial frame to be mapped */
58 unsigned long num; /* number of frames of the resource to be mapped */
59 unsigned long addr; /* physical address to map into */
61 * Note: issuing an ioctl with num = addr = 0 will return the size of
66 struct privcmd_dmop_buf {
67 void *uptr; /* pointer to memory (in calling process) */
68 size_t size; /* size of the buffer */
71 struct ioctl_privcmd_dmop {
72 domid_t dom; /* target domain */
73 unsigned int num; /* num of buffers */
74 const struct privcmd_dmop_buf *ubufs; /* array of buffers */
77 #define IOCTL_PRIVCMD_HYPERCALL \
78 _IOWR('E', 0, struct ioctl_privcmd_hypercall)
79 #define IOCTL_PRIVCMD_MMAPBATCH \
80 _IOWR('E', 1, struct ioctl_privcmd_mmapbatch)
81 #define IOCTL_PRIVCMD_MMAP_RESOURCE \
82 _IOWR('E', 2, struct ioctl_privcmd_mmapresource)
83 #define IOCTL_PRIVCMD_DM_OP \
84 _IOW('E', 3, struct ioctl_privcmd_dmop)
85 #define IOCTL_PRIVCMD_RESTRICT \
88 #endif /* !__XEN_PRIVCMD_H__ */