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01: /******************************************************************************
02:  * privcmd.h
03:  *
04:  * Interface to /proc/xen/privcmd.
05:  *
06:  * Copyright (c) 2003-2005, K A Fraser
07:  *
08:  * This program is free software; you can redistribute it and/or
09:  * 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: 
38: 
39: typedef unsigned long xen_pfn_t;
40: 
41: struct privcmd_hypercall {
42:         __u64 op;
43:         __u64 arg[5];
44: };
45: 
46: struct privcmd_mmap_entry {
47:         __u64 va;
48:         __u64 mfn;
49:         __u64 npages;
50: };
51: 
52: struct privcmd_mmap {
53:         int num;
54:         domid_t dom; /* target domain */
55:         struct privcmd_mmap_entry *entry;
56: };
57: 
58: struct 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 *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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