2 * Copyright (c) 1997 Michael Smith
3 * Copyright (c) 1998 Jonathan Lemon
4 * Copyright (c) 2008 The DragonFly Project.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * $DragonFly: src/sys/platform/pc64/include/pc/bios.h,v 1.1 2008/08/29 17:07:18 dillon Exp $
32 #ifndef _MACHINE_PC_BIOS_H_
33 #define _MACHINE_PC_BIOS_H_
35 extern u_int32_t bios_sigsearch(u_int32_t start, u_char *sig, int siglen,
36 int paralen, int sigofs);
38 #define BIOS_PADDRTOVADDR(x) ((x) + KERNBASE)
39 #define BIOS_VADDRTOPADDR(x) ((x) - KERNBASE)
42 * Int 15:E820 'SMAP' structure
45 #define SMAP_SIG 0x534D4150 /* 'SMAP' */
47 #define SMAP_TYPE_MEMORY 1
48 #define SMAP_TYPE_RESERVED 2
49 #define SMAP_TYPE_ACPI_RECLAIM 3
50 #define SMAP_TYPE_ACPI_NVS 4
51 #define SMAP_TYPE_ACPI_ERROR 5
59 struct bios_oem_signature {
60 char * anchor; /* search anchor string in BIOS memory */
61 size_t offset; /* offset from anchor (may be negative) */
62 size_t totlen; /* total length of BIOS string to copy */
64 struct bios_oem_range {
65 u_int from; /* shouldn't be below 0xe0000 */
66 u_int to; /* shouldn't be above 0xfffff */
69 struct bios_oem_range range;
70 struct bios_oem_signature signature[];
74 bios_oem_strings(struct bios_oem *oem, u_char *buffer, size_t maxlen);
77 #endif /* _MACHINE_PC_BIOS_H_ */