1 /* $NetBSD: bootinfo.h,v 1.1 2014/02/24 07:23:43 skrll 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 31 #ifndef _LOCORE 32 33 struct btinfo_common { 34 int len; 35 int type; 36 }; 37 38 #define BTINFO_MAGIC 0 39 #define BTINFO_KERNELFILE 1 40 #define BTINFO_SYMTAB 2 41 42 struct btinfo_magic { 43 struct btinfo_common common; 44 int magic; 45 }; 46 47 struct btinfo_kernelfile { 48 struct btinfo_common common; 49 char name[1]; /* variable length */ 50 }; 51 52 struct btinfo_symtab { 53 struct btinfo_common common; 54 int nsym; 55 int ssym; 56 int esym; 57 }; 58 59 #endif /* _LOCORE */ 60 61 #ifdef _KERNEL 62 63 #define BOOTINFO_MAXSIZE 1024 64 #define BOOTINFO_DATASIZE (BOOTINFO_MAXSIZE - 2 * sizeof(uint32_t)) 65 66 #ifndef _LOCORE 67 /* 68 * Structure that holds the information passed by the boot loader. 69 */ 70 struct bootinfo { 71 /* Number of bootinfo_* entries in bi_data. */ 72 uint32_t bi_nentries; 73 uint32_t bi_offset; 74 75 /* Raw data of bootinfo entries. The first one (if any) is 76 * found at bi_data[0] and can be casted to (bootinfo_common *). 77 * Once this is done, the following entry is found at 'len' 78 * offset as specified by the previous entry. */ 79 uint8_t bi_data[BOOTINFO_DATASIZE]; 80 }; 81 82 void *lookup_bootinfo(int); 83 #endif /* _LOCORE */ 84 85 #endif /* _KERNEL */ 86