1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Lin <<
2 /********************************************* 1 /******************************************************************************
3 * privcmd.h 2 * privcmd.h
4 * 3 *
5 * Interface to /proc/xen/privcmd. 4 * Interface to /proc/xen/privcmd.
6 * 5 *
7 * Copyright (c) 2003-2005, K A Fraser 6 * Copyright (c) 2003-2005, K A Fraser
8 * 7 *
9 * This program is free software; you can redi 8 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Genera 9 * modify it under the terms of the GNU General Public License version 2
11 * as published by the Free Software Foundatio 10 * as published by the Free Software Foundation; or, when distributed
12 * separately from the Linux kernel or incorpo 11 * separately from the Linux kernel or incorporated into other
13 * software packages, subject to the following 12 * software packages, subject to the following license:
14 * 13 *
15 * Permission is hereby granted, free of charg 14 * Permission is hereby granted, free of charge, to any person obtaining a copy
16 * of this source file (the "Software"), to de 15 * of this source file (the "Software"), to deal in the Software without
17 * restriction, including without limitation t 16 * restriction, including without limitation the rights to use, copy, modify,
18 * merge, publish, distribute, sublicense, and 17 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
19 * and to permit persons to whom the Software 18 * and to permit persons to whom the Software is furnished to do so, subject to
20 * the following conditions: 19 * the following conditions:
21 * 20 *
22 * The above copyright notice and this permiss 21 * The above copyright notice and this permission notice shall be included in
23 * all copies or substantial portions of the S 22 * all copies or substantial portions of the Software.
24 * 23 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT W 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
26 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE W 25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27 * FITNESS FOR A PARTICULAR PURPOSE AND NONINF 26 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
28 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR 27 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
29 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT 28 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
30 * FROM, OUT OF OR IN CONNECTION WITH THE SOFT 29 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
31 * IN THE SOFTWARE. 30 * IN THE SOFTWARE.
32 */ 31 */
33 32
34 #ifndef __LINUX_PUBLIC_PRIVCMD_H__ 33 #ifndef __LINUX_PUBLIC_PRIVCMD_H__
35 #define __LINUX_PUBLIC_PRIVCMD_H__ 34 #define __LINUX_PUBLIC_PRIVCMD_H__
36 35
37 #include <linux/types.h> 36 #include <linux/types.h>
38 #include <linux/compiler.h> 37 #include <linux/compiler.h>
39 #include <xen/interface/xen.h> 38 #include <xen/interface/xen.h>
40 39
41 struct privcmd_hypercall { 40 struct privcmd_hypercall {
42 __u64 op; 41 __u64 op;
43 __u64 arg[5]; 42 __u64 arg[5];
44 }; 43 };
45 44
46 struct privcmd_mmap_entry { 45 struct privcmd_mmap_entry {
47 __u64 va; 46 __u64 va;
48 /* 47 /*
49 * This should be a GFN. It's not poss 48 * This should be a GFN. It's not possible to change the name because
50 * it's exposed to the user-space. 49 * it's exposed to the user-space.
51 */ 50 */
52 __u64 mfn; 51 __u64 mfn;
53 __u64 npages; 52 __u64 npages;
54 }; 53 };
55 54
56 struct privcmd_mmap { 55 struct privcmd_mmap {
57 int num; 56 int num;
58 domid_t dom; /* target domain */ 57 domid_t dom; /* target domain */
59 struct privcmd_mmap_entry __user *entr 58 struct privcmd_mmap_entry __user *entry;
60 }; 59 };
61 60
62 struct privcmd_mmapbatch { 61 struct privcmd_mmapbatch {
63 int num; /* number of pages to pop 62 int num; /* number of pages to populate */
64 domid_t dom; /* target domain */ 63 domid_t dom; /* target domain */
65 __u64 addr; /* virtual address */ 64 __u64 addr; /* virtual address */
66 xen_pfn_t __user *arr; /* array of mfn 65 xen_pfn_t __user *arr; /* array of mfns - or'd with
67 PRIVCMD_MMAP 66 PRIVCMD_MMAPBATCH_*_ERROR on err */
68 }; 67 };
69 68
70 #define PRIVCMD_MMAPBATCH_MFN_ERROR 0xf000 69 #define PRIVCMD_MMAPBATCH_MFN_ERROR 0xf0000000U
71 #define PRIVCMD_MMAPBATCH_PAGED_ERROR 0x8000 70 #define PRIVCMD_MMAPBATCH_PAGED_ERROR 0x80000000U
72 71
73 struct privcmd_mmapbatch_v2 { 72 struct privcmd_mmapbatch_v2 {
74 unsigned int num; /* number of pages t 73 unsigned int num; /* number of pages to populate */
75 domid_t dom; /* target domain */ 74 domid_t dom; /* target domain */
76 __u64 addr; /* virtual address * 75 __u64 addr; /* virtual address */
77 const xen_pfn_t __user *arr; /* array 76 const xen_pfn_t __user *arr; /* array of mfns */
78 int __user *err; /* array of error co 77 int __user *err; /* array of error codes */
79 }; 78 };
80 79
81 struct privcmd_dm_op_buf { <<
82 void __user *uptr; <<
83 size_t size; <<
84 }; <<
85 <<
86 struct privcmd_dm_op { <<
87 domid_t dom; <<
88 __u16 num; <<
89 const struct privcmd_dm_op_buf __user <<
90 }; <<
91 <<
92 struct privcmd_mmap_resource { <<
93 domid_t dom; <<
94 __u32 type; <<
95 __u32 id; <<
96 __u32 idx; <<
97 __u64 num; <<
98 __u64 addr; <<
99 }; <<
100 <<
101 /* For privcmd_irqfd::flags */ <<
102 #define PRIVCMD_IRQFD_FLAG_DEASSIGN (1 << 0) <<
103 <<
104 struct privcmd_irqfd { <<
105 __u64 dm_op; <<
106 __u32 size; /* Size of structure point <<
107 __u32 fd; <<
108 __u32 flags; <<
109 domid_t dom; <<
110 __u8 pad[2]; <<
111 }; <<
112 <<
113 /* For privcmd_ioeventfd::flags */ <<
114 #define PRIVCMD_IOEVENTFD_FLAG_DEASSIGN (1 << <<
115 <<
116 struct privcmd_ioeventfd { <<
117 __u64 ioreq; <<
118 __u64 ports; <<
119 __u64 addr; <<
120 __u32 addr_len; <<
121 __u32 event_fd; <<
122 __u32 vcpus; <<
123 __u32 vq; <<
124 __u32 flags; <<
125 domid_t dom; <<
126 __u8 pad[2]; <<
127 }; <<
128 <<
129 struct privcmd_pcidev_get_gsi { <<
130 __u32 sbdf; <<
131 __u32 gsi; <<
132 }; <<
133 <<
134 /* 80 /*
135 * @cmd: IOCTL_PRIVCMD_HYPERCALL 81 * @cmd: IOCTL_PRIVCMD_HYPERCALL
136 * @arg: &privcmd_hypercall_t 82 * @arg: &privcmd_hypercall_t
137 * Return: Value returned from execution of th 83 * Return: Value returned from execution of the specified hypercall.
138 * 84 *
139 * @cmd: IOCTL_PRIVCMD_MMAPBATCH_V2 85 * @cmd: IOCTL_PRIVCMD_MMAPBATCH_V2
140 * @arg: &struct privcmd_mmapbatch_v2 86 * @arg: &struct privcmd_mmapbatch_v2
141 * Return: 0 on success (i.e., arg->err contai 87 * Return: 0 on success (i.e., arg->err contains valid error codes for
142 * each frame). On an error other than a fail 88 * each frame). On an error other than a failed frame remap, -1 is
143 * returned and errno is set to EINVAL, EFAULT 89 * returned and errno is set to EINVAL, EFAULT etc. As an exception,
144 * if the operation was otherwise successful b 90 * if the operation was otherwise successful but any frame failed with
145 * -ENOENT, then -1 is returned and errno is s 91 * -ENOENT, then -1 is returned and errno is set to ENOENT.
146 */ 92 */
147 #define IOCTL_PRIVCMD_HYPERCALL 93 #define IOCTL_PRIVCMD_HYPERCALL \
148 _IOC(_IOC_NONE, 'P', 0, sizeof(struct 94 _IOC(_IOC_NONE, 'P', 0, sizeof(struct privcmd_hypercall))
149 #define IOCTL_PRIVCMD_MMAP 95 #define IOCTL_PRIVCMD_MMAP \
150 _IOC(_IOC_NONE, 'P', 2, sizeof(struct 96 _IOC(_IOC_NONE, 'P', 2, sizeof(struct privcmd_mmap))
151 #define IOCTL_PRIVCMD_MMAPBATCH 97 #define IOCTL_PRIVCMD_MMAPBATCH \
152 _IOC(_IOC_NONE, 'P', 3, sizeof(struct 98 _IOC(_IOC_NONE, 'P', 3, sizeof(struct privcmd_mmapbatch))
153 #define IOCTL_PRIVCMD_MMAPBATCH_V2 99 #define IOCTL_PRIVCMD_MMAPBATCH_V2 \
154 _IOC(_IOC_NONE, 'P', 4, sizeof(struct 100 _IOC(_IOC_NONE, 'P', 4, sizeof(struct privcmd_mmapbatch_v2))
155 #define IOCTL_PRIVCMD_DM_OP <<
156 _IOC(_IOC_NONE, 'P', 5, sizeof(struct <<
157 #define IOCTL_PRIVCMD_RESTRICT <<
158 _IOC(_IOC_NONE, 'P', 6, sizeof(domid_t <<
159 #define IOCTL_PRIVCMD_MMAP_RESOURCE <<
160 _IOC(_IOC_NONE, 'P', 7, sizeof(struct <<
161 #define IOCTL_PRIVCMD_IRQFD <<
162 _IOW('P', 8, struct privcmd_irqfd) <<
163 #define IOCTL_PRIVCMD_IOEVENTFD <<
164 _IOW('P', 9, struct privcmd_ioeventfd) <<
165 #define IOCTL_PRIVCMD_PCIDEV_GET_GSI <<
166 _IOC(_IOC_NONE, 'P', 10, sizeof(struct <<
167 101
168 #endif /* __LINUX_PUBLIC_PRIVCMD_H__ */ 102 #endif /* __LINUX_PUBLIC_PRIVCMD_H__ */
169 103
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.