1 /* $NetBSD: disklabel.h,v 1.6 2017/07/24 10:04:09 mrg Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Christopher G. Demetriou 5 * 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Christopher G. Demetriou. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright 2000, 2001 35 * Broadcom Corporation. All rights reserved. 36 * 37 * This software is furnished under license and may be used and copied only 38 * in accordance with the following terms and conditions. Subject to these 39 * conditions, you may download, copy, install, use, modify and distribute 40 * modified or unmodified copies of this software in source and/or binary 41 * form. No title or ownership is transferred hereby. 42 * 43 * 1) Any source code used, modified or distributed must reproduce and 44 * retain this copyright notice and list of conditions as they appear in 45 * the source file. 46 * 47 * 2) No right is granted to use any trade name, trademark, or logo of 48 * Broadcom Corporation. The "Broadcom Corporation" name may not be 49 * used to endorse or promote products derived from this software 50 * without the prior written permission of Broadcom Corporation. 51 * 52 * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED 53 * WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF 54 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR 55 * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE 56 * FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE 57 * LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 58 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 59 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 60 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 61 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 62 * OR OTHERWISE), EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 63 */ 64 65 #ifndef _EVBMIPS_DISKLABEL_H_ 66 #define _EVBMIPS_DISKLABEL_H_ 67 68 #ifdef _KERNEL_OPT 69 #include "opt_pmon.h" 70 #include "opt_cputype.h" 71 #endif 72 73 #ifdef MIPS64_SB1 74 75 #define LABELUSESMBR 0 /* no MBR partitionning */ 76 #define LABELSECTOR 1 /* sector containing label */ 77 #define LABELOFFSET 0 /* offset of label in sector */ 78 #define MAXPARTITIONS 16 79 #define RAW_PART 3 80 81 #ifdef __NetBSD__ 82 /* Pull in MBR partition definitions. */ 83 #if HAVE_NBTOOL_CONFIG_H 84 #include <nbinclude/sys/bootblock.h> 85 #else 86 #include <sys/bootblock.h> 87 #endif /* HAVE_NBTOOL_CONFIG_H */ 88 89 #ifndef __ASSEMBLER__ 90 #if HAVE_NBTOOL_CONFIG_H 91 #include <nbinclude/sys/dkbad.h> 92 #else 93 #include <sys/dkbad.h> 94 #endif /* HAVE_NBTOOL_CONFIG_H */ 95 struct cpu_disklabel { 96 struct mbr_partition mbrparts[MBR_PART_COUNT]; 97 #define __HAVE_DISKLABEL_DKBAD 98 struct dkbad bad; 99 }; 100 #endif 101 #endif 102 103 /* 104 * CFE boot block, modeled loosely on Alpha. 105 * 106 * It consists of: 107 * 108 * BSD disk label 109 * <blank space> 110 * Boot block info (5 uint_64s) 111 * 112 * The boot block portion looks like: 113 * 114 * 115 * +-------+-------+-------+-------+-------+-------+-------+-------+ 116 * | BOOT_MAGIC_NUMBER | 117 * +-------+-------+-------+-------+-------+-------+-------+-------+ 118 * | Flags | Reserved | Vers | Header Checksum | 119 * +-------+-------+-------+-------+-------+-------+-------+-------+ 120 * | Secondary Loader Location (bytes) | 121 * +-------+-------+-------+-------+-------+-------+-------+-------+ 122 * | Loader Checksum | Size of loader (bytes) | 123 * +-------+-------+-------+-------+-------+-------+-------+-------+ 124 * | Reserved | Architecture Information | 125 * +-------+-------+-------+-------+-------+-------+-------+-------+ 126 * 127 * Boot block fields should always be read as 64-bit numbers. 128 * 129 */ 130 131 132 struct boot_block { 133 uint64_t cfe_bb_data[64]; /* data (disklabel, also as below) */ 134 }; 135 #define cfe_bb_magic cfe_bb_data[59] /* magic number */ 136 #define cfe_bb_hdrinfo cfe_bb_data[60] /* header checksum, ver, flags */ 137 #define cfe_bb_secstart cfe_bb_data[61] /* secondary start (bytes) */ 138 #define cfe_bb_secsize cfe_bb_data[62] /* secondary size (bytes) */ 139 #define cfe_bb_archinfo cfe_bb_data[63] /* architecture info */ 140 141 #define BOOT_BLOCK_OFFSET 0 /* offset of boot block. */ 142 #define BOOT_BLOCK_BLOCKSIZE 512 /* block size for sec. size/start, 143 * and for boot block itself 144 */ 145 #define BOOT_BLOCK_SIZE 40 /* 5 64-bit words */ 146 147 #define BOOT_MAGIC_NUMBER 0x43465631424f4f54 148 #define BOOT_HDR_CHECKSUM_MASK 0x00000000FFFFFFFF 149 #define BOOT_HDR_VER_MASK 0x000000FF00000000 150 #define BOOT_HDR_VER_SHIFT 32 151 #define BOOT_HDR_FLAGS_MASK 0xFF00000000000000 152 #define BOOT_SECSIZE_MASK 0x00000000FFFFFFFF 153 #define BOOT_DATA_CHECKSUM_MASK 0xFFFFFFFF00000000 154 #define BOOT_DATA_CHECKSUM_SHIFT 32 155 #define BOOT_ARCHINFO_MASK 0x00000000FFFFFFFF 156 157 #define BOOT_HDR_VERSION 1 158 159 #define CHECKSUM_BOOT_BLOCK(bb,cksum) \ 160 do { \ 161 uint32_t *_ptr = (uint32_t *) (bb); \ 162 uint32_t _cksum; \ 163 int _i; \ 164 \ 165 _cksum = 0; \ 166 for (_i = 0; \ 167 _i < (BOOT_BLOCK_SIZE / sizeof (uint32_t)); \ 168 _i++) \ 169 _cksum += _ptr[_i]; \ 170 *(cksum) = _cksum; \ 171 } while (0) 172 173 174 #define CHECKSUM_BOOT_DATA(data,len,cksum) \ 175 do { \ 176 uint32_t *_ptr = (uint32_t *) (data); \ 177 uint32_t _cksum; \ 178 int _i; \ 179 \ 180 _cksum = 0; \ 181 for (_i = 0; \ 182 _i < ((len) / sizeof (uint32_t)); \ 183 _i++) \ 184 _cksum += _ptr[_i]; \ 185 *(cksum) = _cksum; \ 186 } while (0) 187 188 #else /* MIPS64_SB1 */ 189 190 #ifdef PMON 191 #define LABELUSESMBR 1 /* use MBR partitionning */ 192 #else 193 #define LABELUSESMBR 0 /* no MBR partitionning */ 194 #endif 195 #define LABELSECTOR 0 /* sector containing label */ 196 #define LABELOFFSET 64 /* offset of label in sector */ 197 #define MAXPARTITIONS 16 /* number of partitions */ 198 #define RAW_PART 2 /* raw partition: xx?c */ 199 200 #if HAVE_NBTOOL_CONFIG_H 201 #include <nbinclude/sys/dkbad.h> 202 #else 203 #include <sys/dkbad.h> 204 #endif /* HAVE_NBTOOL_CONFIG_H */ 205 206 /* Just a dummy */ 207 struct cpu_disklabel { 208 #define __HAVE_DISKLABEL_DKBAD 209 struct dkbad bad; /* must have one element. */ 210 }; 211 212 #endif /* MIPS64_SB1 */ 213 214 #endif /* !_EVBMIPS_DISKLABEL_H_ */ 215