freebsd-dev/sys/amd64/include/pc/bios.h
Peter Wemm c3277f936c Severely strip down the repocopied i386/bios.c and bios.h files. It turns
out that bios_sigsearch() etc is useful for finding tables in roms.
2004-09-24 00:42:36 +00:00

55 lines
1.9 KiB
C

/*-
* Copyright (c) 1997 Michael Smith
* Copyright (c) 1998 Jonathan Lemon
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_PC_BIOS_H_
#define _MACHINE_PC_BIOS_H_
extern u_int32_t bios_sigsearch(u_int32_t start, u_char *sig, int siglen,
int paralen, int sigofs);
#define BIOS_PADDRTOVADDR(x) ((x) + KERNBASE)
#define BIOS_VADDRTOPADDR(x) ((x) - KERNBASE)
/*
* Int 15:E820 'SMAP' structure
*
* XXX add constants for type
*/
#define SMAP_SIG 0x534D4150 /* 'SMAP' */
struct bios_smap {
u_int64_t base;
u_int64_t length;
u_int32_t type;
} __packed;
const u_char *bios_string(u_int from, u_int to, const u_char *string, int len);
#endif /* _MACHINE_PC_BIOS_H_ */