1/*
2 * Copyright (c) 1998 Robert Nordier
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
19 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
20 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
21 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
23 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
24 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
| 1/*
2 * Copyright (c) 1998 Robert Nordier
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
19 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
20 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
21 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
23 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
24 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
|
27 */
28
29#ifndef _BTX_H_
30#define _BTX_H_
31
32#include <sys/types.h>
33
34#define BTX_PGSIZE 0x1000 /* Page size */
35#define BTX_PGBASE 0x5000 /* Start of page tables */
36#define BTX_MAXCWR 0x3bc /* Max. btx_pgctl adjustment */
37
38/*
39 * BTX image header.
40 */
41struct btx_hdr {
42 uint8_t btx_machid; /* Machine ID */
43 uint8_t btx_hdrsz; /* Header size */
44 uint8_t btx_magic[3]; /* Magic */
45 uint8_t btx_majver; /* Major version */
46 uint8_t btx_minver; /* Minor version */
47 uint8_t btx_flags; /* Flags */
48 uint16_t btx_pgctl; /* Paging control */
49 uint16_t btx_textsz; /* Text size */
50 uint32_t btx_entry; /* Client entry address */
51};
52
53/* btx_machid */
54#define BTX_I386 0xeb /* Intel i386 or compatible */
55
56/* btx_magic */
57#define BTX_MAG0 'B'
58#define BTX_MAG1 'T'
59#define BTX_MAG2 'X'
60
61/* btx_flags */
62#define BTX_MAPONE 0x80 /* Start mapping at page 1 */
63
64#define BTX_MAPPED(btx) (((btx).btx_pgctl | (BTX_PGSIZE / 4 - 1)) + 1)
65#define BTX_ORIGIN(btx) (BTX_PGBASE + BTX_MAPPED(btx) * 4)
66#define BTX_ENTRY(btx) (BTX_ORIGIN(btx) + 2 + (btx).btx_hdrsz)
67
68#endif /* !_BTX_H_ */
| 27 */
28
29#ifndef _BTX_H_
30#define _BTX_H_
31
32#include <sys/types.h>
33
34#define BTX_PGSIZE 0x1000 /* Page size */
35#define BTX_PGBASE 0x5000 /* Start of page tables */
36#define BTX_MAXCWR 0x3bc /* Max. btx_pgctl adjustment */
37
38/*
39 * BTX image header.
40 */
41struct btx_hdr {
42 uint8_t btx_machid; /* Machine ID */
43 uint8_t btx_hdrsz; /* Header size */
44 uint8_t btx_magic[3]; /* Magic */
45 uint8_t btx_majver; /* Major version */
46 uint8_t btx_minver; /* Minor version */
47 uint8_t btx_flags; /* Flags */
48 uint16_t btx_pgctl; /* Paging control */
49 uint16_t btx_textsz; /* Text size */
50 uint32_t btx_entry; /* Client entry address */
51};
52
53/* btx_machid */
54#define BTX_I386 0xeb /* Intel i386 or compatible */
55
56/* btx_magic */
57#define BTX_MAG0 'B'
58#define BTX_MAG1 'T'
59#define BTX_MAG2 'X'
60
61/* btx_flags */
62#define BTX_MAPONE 0x80 /* Start mapping at page 1 */
63
64#define BTX_MAPPED(btx) (((btx).btx_pgctl | (BTX_PGSIZE / 4 - 1)) + 1)
65#define BTX_ORIGIN(btx) (BTX_PGBASE + BTX_MAPPED(btx) * 4)
66#define BTX_ENTRY(btx) (BTX_ORIGIN(btx) + 2 + (btx).btx_hdrsz)
67
68#endif /* !_BTX_H_ */
|