/* $NetBSD: disklabel.h,v 1.7 2026/07/14 13:34:34 thorpej Exp $ */ /* * Copyright (c) 1994 Christopher G. Demetriou * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Christopher G. Demetriou. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. */ /* * Copyright 2000, 2001 * Broadcom Corporation. All rights reserved. * * This software is furnished under license and may be used and copied only * in accordance with the following terms and conditions. Subject to these * conditions, you may download, copy, install, use, modify and distribute * modified or unmodified copies of this software in source and/or binary * form. No title or ownership is transferred hereby. * * 1) Any source code used, modified or distributed must reproduce and * retain this copyright notice and list of conditions as they appear in * the source file. * * 2) No right is granted to use any trade name, trademark, or logo of * Broadcom Corporation. The "Broadcom Corporation" name may not be * used to endorse or promote products derived from this software * without the prior written permission of Broadcom Corporation. * * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE * FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE * LIABLE FOR 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), EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVBMIPS_DISKLABEL_H_ #define _EVBMIPS_DISKLABEL_H_ #ifdef _KERNEL_OPT #include "opt_pmon.h" #include "opt_cputype.h" #endif #ifdef MIPS64_SB1 #define LABELUSESMBR 0 /* no MBR partitionning */ #define LABELSECTOR 1 /* sector containing label */ #define LABELOFFSET 0 /* offset of label in sector */ #define MAXPARTITIONS 16 #define RAW_PART 3 #ifdef __NetBSD__ /* Pull in MBR partition definitions. */ #if HAVE_NBTOOL_CONFIG_H #include <nbinclude/sys/bootblock.h> #else #include <sys/bootblock.h> #endif /* HAVE_NBTOOL_CONFIG_H */ #ifndef __ASSEMBLER__ struct cpu_disklabel { struct mbr_partition mbrparts[MBR_PART_COUNT]; }; #endif #endif /* * CFE boot block, modeled loosely on Alpha. * * It consists of: * * BSD disk label * <blank space> * Boot block info (5 uint_64s) * * The boot block portion looks like: * * * +-------+-------+-------+-------+-------+-------+-------+-------+ * | BOOT_MAGIC_NUMBER | * +-------+-------+-------+-------+-------+-------+-------+-------+ * | Flags | Reserved | Vers | Header Checksum | * +-------+-------+-------+-------+-------+-------+-------+-------+ * | Secondary Loader Location (bytes) | * +-------+-------+-------+-------+-------+-------+-------+-------+ * | Loader Checksum | Size of loader (bytes) | * +-------+-------+-------+-------+-------+-------+-------+-------+ * | Reserved | Architecture Information | * +-------+-------+-------+-------+-------+-------+-------+-------+ * * Boot block fields should always be read as 64-bit numbers. * */ struct boot_block { uint64_t cfe_bb_data[64]; /* data (disklabel, also as below) */ }; #define cfe_bb_magic cfe_bb_data[59] /* magic number */ #define cfe_bb_hdrinfo cfe_bb_data[60] /* header checksum, ver, flags */ #define cfe_bb_secstart cfe_bb_data[61] /* secondary start (bytes) */ #define cfe_bb_secsize cfe_bb_data[62] /* secondary size (bytes) */ #define cfe_bb_archinfo cfe_bb_data[63] /* architecture info */ #define BOOT_BLOCK_OFFSET 0 /* offset of boot block. */ #define BOOT_BLOCK_BLOCKSIZE 512 /* block size for sec. size/start, * and for boot block itself */ #define BOOT_BLOCK_SIZE 40 /* 5 64-bit words */ #define BOOT_MAGIC_NUMBER 0x43465631424f4f54 #define BOOT_HDR_CHECKSUM_MASK 0x00000000FFFFFFFF #define BOOT_HDR_VER_MASK 0x000000FF00000000 #define BOOT_HDR_VER_SHIFT 32 #define BOOT_HDR_FLAGS_MASK 0xFF00000000000000 #define BOOT_SECSIZE_MASK 0x00000000FFFFFFFF #define BOOT_DATA_CHECKSUM_MASK 0xFFFFFFFF00000000 #define BOOT_DATA_CHECKSUM_SHIFT 32 #define BOOT_ARCHINFO_MASK 0x00000000FFFFFFFF #define BOOT_HDR_VERSION 1 #define CHECKSUM_BOOT_BLOCK(bb,cksum) \ do { \ uint32_t *_ptr = (uint32_t *) (bb); \ uint32_t _cksum; \ int _i; \ \ _cksum = 0; \ for (_i = 0; \ _i < (BOOT_BLOCK_SIZE / sizeof (uint32_t)); \ _i++) \ _cksum += _ptr[_i]; \ *(cksum) = _cksum; \ } while (0) #define CHECKSUM_BOOT_DATA(data,len,cksum) \ do { \ uint32_t *_ptr = (uint32_t *) (data); \ uint32_t _cksum; \ int _i; \ \ _cksum = 0; \ for (_i = 0; \ _i < ((len) / sizeof (uint32_t)); \ _i++) \ _cksum += _ptr[_i]; \ *(cksum) = _cksum; \ } while (0) #else /* MIPS64_SB1 */ #ifdef PMON #define LABELUSESMBR 1 /* use MBR partitionning */ #else #define LABELUSESMBR 0 /* no MBR partitionning */ #endif #define LABELSECTOR 0 /* sector containing label */ #define LABELOFFSET 64 /* offset of label in sector */ #define MAXPARTITIONS 16 /* number of partitions */ #define RAW_PART 2 /* raw partition: xx?c */ /* Just a dummy */ struct cpu_disklabel { int dummy; }; #endif /* MIPS64_SB1 */ #endif /* !_EVBMIPS_DISKLABEL_H_ */
