1/*	$NetBSD: bootinfo.h,v 1.6 2012/05/28 19:24:29 martin Exp $	*/
 2
 3/*
 4 * Copyright (c) 1997
 5 *	Matthias Drochner.  All rights reserved.
 6 *
 7 * Redistribution and use in source and binary forms, with or without
 8 * modification, are permitted provided that the following conditions
 9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 */
28
29#define BOOTINFO_MAGIC	0xb007babe
30#define BOOTINFO_SIZE	1024
31
32/*
33 * The bootinfo structure is placed at the end of the kernel, aligned
34 * to a page.
35 */
36
37struct btinfo_common {
38	int next;		/* offset of next item, or zero */
39	int type;
40};
41
42#define BTINFO_MAGIC		1
43#define BTINFO_SYMTAB		2
44#define BTINFO_KERNELFILE	3
45#define BTINFO_BOOTHOWTO	4
46
47struct btinfo_magic {
48	struct btinfo_common common;
49	int magic;
50};
51
52struct btinfo_symtab {
53	struct btinfo_common common;
54	int nsym;
55	int ssym;
56	int esym;
57};
58
59struct btinfo_kernelfile {
60	struct btinfo_common common;
61	char name[1];	/* variable length */
62};
63
64struct btinfo_boothowto {
65	struct btinfo_common common;
66	int boothowto;
67};
68
69#ifdef _KERNEL
70void *lookup_bootinfo(int);
71#endif