bios.h revision 135689
1/*- 2 * Copyright (c) 1997 Michael Smith 3 * Copyright (c) 1998 Jonathan Lemon 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: head/sys/amd64/include/pc/bios.h 135689 2004-09-24 00:42:36Z peter $ 28 */ 29 30#ifndef _MACHINE_PC_BIOS_H_ 31#define _MACHINE_PC_BIOS_H_ 32 33extern u_int32_t bios_sigsearch(u_int32_t start, u_char *sig, int siglen, 34 int paralen, int sigofs); 35 36#define BIOS_PADDRTOVADDR(x) ((x) + KERNBASE) 37#define BIOS_VADDRTOPADDR(x) ((x) - KERNBASE) 38 39/* 40 * Int 15:E820 'SMAP' structure 41 * 42 * XXX add constants for type 43 */ 44#define SMAP_SIG 0x534D4150 /* 'SMAP' */ 45struct bios_smap { 46 u_int64_t base; 47 u_int64_t length; 48 u_int32_t type; 49} __packed; 50 51const u_char *bios_string(u_int from, u_int to, const u_char *string, int len); 52 53 54#endif /* _MACHINE_PC_BIOS_H_ */ 55