1 /*	NetBSD: xenio.h,v 1.3 2005/05/24 12:07:12 yamt Exp $	*/
2 
3 /******************************************************************************
4  * privcmd.h
5  *
6  * Copyright (c) 2003-2004, K A Fraser
7  *
8  * This file may be distributed separately from the Linux kernel, or
9  * incorporated into other software packages, subject to the following license:
10  *
11  * Permission is hereby granted, free of charge, to any person obtaining a copy
12  * of this source file (the "Software"), to deal in the Software without
13  * restriction, including without limitation the rights to use, copy, modify,
14  * merge, publish, distribute, sublicense, and/or sell copies of the Software,
15  * and to permit persons to whom the Software is furnished to do so, subject to
16  * the following conditions:
17  *
18  * The above copyright notice and this permission notice shall be included in
19  * all copies or substantial portions of the Software.
20  *
21  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
24  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
27  * IN THE SOFTWARE.
28  */
29 
30 #ifndef __NetBSD_PRIVCMD_H__
31 #define __NetBSD_PRIVCMD_H__
32 
33 /* Interface to /dev/xen/privcmd */
34 
35 typedef struct privcmd_hypercall
36 {
37     unsigned long op;
38     unsigned long arg[5];
39     long retval;
40 } privcmd_hypercall_t;
41 
42 typedef struct privcmd_mmap_entry {
43     unsigned long va;
44     unsigned long mfn;
45     unsigned long npages;
46 } privcmd_mmap_entry_t;
47 
48 typedef struct privcmd_mmap {
49     int num;
50     domid_t dom; /* target domain */
51     privcmd_mmap_entry_t *entry;
52 } privcmd_mmap_t;
53 
54 typedef struct privcmd_mmapbatch {
55     int num;     /* number of pages to populate */
56     domid_t dom; /* target domain */
57     unsigned long addr;  /* virtual address */
58     unsigned long *arr; /* array of mfns - top nibble set on err */
59 } privcmd_mmapbatch_t;
60 
61 typedef struct privcmd_blkmsg
62 {
63     unsigned long op;
64     void         *buf;
65     int           buf_size;
66 } privcmd_blkmsg_t;
67 
68 /*
69  * @cmd: IOCTL_PRIVCMD_HYPERCALL
70  * @arg: &privcmd_hypercall_t
71  * Return: Value returned from execution of the specified hypercall.
72  */
73 #define IOCTL_PRIVCMD_HYPERCALL         \
74     _IOWR('P', 0, privcmd_hypercall_t)
75 
76 #if defined(_KERNEL)
77 /* compat */
78 #define IOCTL_PRIVCMD_INITDOMAIN_EVTCHN_OLD \
79     _IO('P', 1)
80 #endif /* defined(_KERNEL) */
81 
82 #define IOCTL_PRIVCMD_MMAP             \
83     _IOW('P', 2, privcmd_mmap_t)
84 #define IOCTL_PRIVCMD_MMAPBATCH        \
85     _IOW('P', 3, privcmd_mmapbatch_t)
86 #define IOCTL_PRIVCMD_GET_MACH2PHYS_START_MFN \
87     _IOR('P', 4, unsigned long)
88 
89 /*
90  * @cmd: IOCTL_PRIVCMD_INITDOMAIN_EVTCHN
91  * @arg: n/a
92  * Return: Port associated with domain-controller end of control event channel
93  *         for the initial domain.
94  */
95 #define IOCTL_PRIVCMD_INITDOMAIN_EVTCHN \
96     _IOR('P', 5, int)
97 
98 /* Interface to /dev/xenevt */
99 /* EVTCHN_RESET: Clear and reinit the event buffer. Clear error condition. */
100 #define EVTCHN_RESET  _IO('E', 1)
101 /* EVTCHN_BIND: Bind to the specified event-channel port. */
102 #define EVTCHN_BIND   _IOW('E', 2, unsigned long)
103 /* EVTCHN_UNBIND: Unbind from the specified event-channel port. */
104 #define EVTCHN_UNBIND _IOW('E', 3, unsigned long)
105 
106 #endif /* __NetBSD_PRIVCMD_H__ */
107