1 /*-
2 * Copyright (C) 1994 by Rodney W. Grimes, Milwaukie, Oregon 97222
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 as
10 * the first lines of this file unmodified.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Rodney W. Grimes.
17 * 4. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY RODNEY W. GRIMES ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL RODNEY W. GRIMES BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $FreeBSD: releng/5.0/sys/i386/include/bootinfo.h 55205 1999-12-29 04:46:21Z peter $
33 */
34
35 #ifndef _MACHINE_BOOTINFO_H_
36 #define _MACHINE_BOOTINFO_H_
37
38 /* Only change the version number if you break compatibility. */
39 #define BOOTINFO_VERSION 1
40
41 #define N_BIOS_GEOM 8
42
43 /*
44 * A zero bootinfo field often means that there is no info available.
45 * Flags are used to indicate the validity of fields where zero is a
46 * normal value.
47 */
48 struct bootinfo {
49 u_int32_t bi_version;
50 u_int32_t bi_kernelname; /* represents a char * */
51 u_int32_t bi_nfs_diskless; /* struct nfs_diskless * */
52 /* End of fields that are always present. */
53 #define bi_endcommon bi_n_bios_used
54 u_int32_t bi_n_bios_used;
55 u_int32_t bi_bios_geom[N_BIOS_GEOM];
56 u_int32_t bi_size;
57 u_int8_t bi_memsizes_valid;
58 u_int8_t bi_bios_dev; /* bootdev BIOS unit number */
59 u_int8_t bi_pad[2];
60 u_int32_t bi_basemem;
61 u_int32_t bi_extmem;
62 u_int32_t bi_symtab; /* struct symtab * */
63 u_int32_t bi_esymtab; /* struct symtab * */
64 /* Items below only from advanced bootloader */
65 u_int32_t bi_kernend; /* end of kernel space */
66 u_int32_t bi_envp; /* environment */
67 u_int32_t bi_modulep; /* preloaded modules */
68 };
69
70 #ifdef _KERNEL
71 extern struct bootinfo bootinfo;
72 #endif
73
74 #endif /* !_MACHINE_BOOTINFO_H_ */
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