402 lines
15 KiB
C
402 lines
15 KiB
C
/* $NetBSD: bootblock.h,v 1.11 2002/11/02 07:35:07 perry Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
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* Michael L. Finch, Bradley A. Grantham, and
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* Lawrence A. Kesteloot
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Alice Group.
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* 4. The names of the Alice Group or any of its members may not be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE ALICE GROUP BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/*
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* Copyright (c) 1994, 1999 Christopher G. Demetriou
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SYS_BOOTBLOCK_H
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#define _SYS_BOOTBLOCK_H
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#ifdef _KERNEL
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#include <sys/stdint.h>
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#else
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#include <stdint.h>
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#endif
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/* ------------------------------------------
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* shared --
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* definintions shared by many platforms
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*/
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/* Maximum # of blocks in bbi_block_table, each bbi_block_size long */
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#define SHARED_BBINFO_MAXBLOCKS 118 /* so sizeof(shared_bbinfo) == 512 */
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struct shared_bbinfo {
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uint8_t bbi_magic[32];
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int32_t bbi_block_size;
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int32_t bbi_block_count;
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int32_t bbi_block_table[SHARED_BBINFO_MAXBLOCKS];
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};
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/* ------------------------------------------
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* alpha --
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* Alpha (disk, but also tape) Boot Block.
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*
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* See Section (III) 3.6.1 of the Alpha Architecture Reference Manual.
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*/
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struct alpha_boot_block {
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uint64_t bb_data[63]; /* data (disklabel, also as below) */
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uint64_t bb_cksum; /* checksum of the boot block,
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* taken as uint64_t's
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*/
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};
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#define bb_secsize bb_data[60] /* secondary size (blocks) */
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#define bb_secstart bb_data[61] /* secondary start (blocks) */
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#define bb_flags bb_data[62] /* unknown flags (set to zero) */
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#define ALPHA_BOOT_BLOCK_OFFSET 0 /* offset of boot block. */
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#define ALPHA_BOOT_BLOCK_BLOCKSIZE 512 /* block size for sector
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* size/start, and for boot
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* block itself.
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*/
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#define ALPHA_BOOT_BLOCK_CKSUM(bb,cksum) \
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do { \
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const struct alpha_boot_block *_bb = (bb); \
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uint64_t _cksum; \
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int _i; \
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\
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_cksum = 0; \
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for (_i = 0; \
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_i < (sizeof _bb->bb_data / sizeof _bb->bb_data[0]); \
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_i++) \
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_cksum += _bb->bb_data[_i]; \
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*(cksum) = _cksum; \
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} while (/*CONSTCOND*/ 0)
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/* ------------------------------------------
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* apple --
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* Apple computers boot block related information
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*/
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/*
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* Driver Descriptor Map, from Inside Macintosh: Devices, SCSI Manager
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* pp 12-13. The driver descriptor map always resides on physical block 0.
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*/
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struct apple_drvr_descriptor {
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uint32_t descBlock; /* first block of driver */
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uint16_t descSize; /* driver size in blocks */
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uint16_t descType; /* system type */
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};
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/*
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* system types; Apple reserves 0-15
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*/
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#define APPLE_DRVR_TYPE_MACINTOSH 1
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#define APPLE_DRVR_MAP_MAGIC 0x4552
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#define APPLE_DRVR_MAP_MAX_DESCRIPTORS 61
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struct apple_drvr_map {
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uint16_t sbSig; /* map signature */
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uint16_t sbBlockSize; /* block size of device */
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uint32_t sbBlkCount; /* number of blocks on device */
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uint16_t sbDevType; /* (used internally by ROM) */
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uint16_t sbDevID; /* (used internally by ROM) */
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uint32_t sbData; /* (used internally by ROM) */
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uint16_t sbDrvrCount; /* number of driver descriptors */
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struct apple_drvr_descriptor sb_dd[APPLE_DRVR_MAP_MAX_DESCRIPTORS];
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uint16_t pad[3];
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} __attribute__ ((packed));
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/*
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* Partition map structure from Inside Macintosh: Devices, SCSI Manager
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* pp. 13-14. The partition map always begins on physical block 1.
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*
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* With the exception of block 0, all blocks on the disk must belong to
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* exactly one partition. The partition map itself belongs to a partition
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* of type `APPLE_PARTITION_MAP', and is not limited in size by anything
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* other than available disk space. The partition map is not necessarily
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* the first partition listed.
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*/
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#define APPLE_PART_MAP_ENTRY_MAGIC 0x504d
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struct apple_part_map_entry {
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uint16_t pmSig; /* partition signature */
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uint16_t pmSigPad; /* (reserved) */
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uint32_t pmMapBlkCnt; /* number of blocks in partition map */
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uint32_t pmPyPartStart; /* first physical block of partition */
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uint32_t pmPartBlkCnt; /* number of blocks in partition */
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uint8_t pmPartName[32]; /* partition name */
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uint8_t pmPartType[32]; /* partition type */
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uint32_t pmLgDataStart; /* first logical block of data area */
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uint32_t pmDataCnt; /* number of blocks in data area */
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uint32_t pmPartStatus; /* partition status information */
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uint32_t pmLgBootStart; /* first logical block of boot code */
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uint32_t pmBootSize; /* size of boot code, in bytes */
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uint32_t pmBootLoad; /* boot code load address */
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uint32_t pmBootLoad2; /* (reserved) */
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uint32_t pmBootEntry; /* boot code entry point */
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uint32_t pmBootEntry2; /* (reserved) */
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uint32_t pmBootCksum; /* boot code checksum */
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int8_t pmProcessor[16]; /* processor type (e.g. "68020") */
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uint8_t pmBootArgs[128]; /* A/UX boot arguments */
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uint8_t pad[248]; /* pad to end of block */
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};
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#define APPLE_PART_TYPE_DRIVER "APPLE_DRIVER"
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#define APPLE_PART_TYPE_DRIVER43 "APPLE_DRIVER43"
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#define APPLE_PART_TYPE_DRIVERATA "APPLE_DRIVER_ATA"
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#define APPLE_PART_TYPE_DRIVERIOKIT "APPLE_DRIVER_IOKIT"
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#define APPLE_PART_TYPE_FWDRIVER "APPLE_FWDRIVER"
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#define APPLE_PART_TYPE_FWB_COMPONENT "FWB DRIVER COMPONENTS"
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#define APPLE_PART_TYPE_FREE "APPLE_FREE"
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#define APPLE_PART_TYPE_MAC "APPLE_HFS"
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#define APPLE_PART_TYPE_NETBSD "NETBSD"
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#define APPLE_PART_TYPE_NBSD_PPCBOOT "NETBSD/MACPPC"
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#define APPLE_PART_TYPE_NBSD_68KBOOT "NETBSD/MAC68K"
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#define APPLE_PART_TYPE_PATCHES "APPLE_PATCHES"
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#define APPLE_PART_TYPE_PARTMAP "APPLE_PARTITION_MAP"
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#define APPLE_PART_TYPE_PATCHES "APPLE_PATCHES"
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#define APPLE_PART_TYPE_SCRATCH "APPLE_SCRATCH"
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#define APPLE_PART_TYPE_UNIX "APPLE_UNIX_SVR2"
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/* ------------------------------------------
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* macppc
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*/
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#define MACPPC_BOOT_BLOCK_OFFSET 2048
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#define MACPPC_BOOT_BLOCK_BLOCKSIZE 512
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#define MACPPC_BOOT_BLOCK_MAX_SIZE 2048 /* XXX: could be up to 6144 */
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/* Magic string -- 32 bytes long (including the NUL) */
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#define MACPPC_BBINFO_MAGIC "NetBSD/macppc bootxx 20020515"
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/* ------------------------------------------
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* news68k, newsmips
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*/
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#define NEWS_BOOT_BLOCK_LABELOFFSET 64 /* XXX from <machine/disklabel.h> */
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#define NEWS_BOOT_BLOCK_OFFSET 0
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#define NEWS_BOOT_BLOCK_BLOCKSIZE 512
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#define NEWS_BOOT_BLOCK_MAX_SIZE (512 * 16)
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/* Magic string -- 32 bytes long (including the NUL) */
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#define NEWS68K_BBINFO_MAGIC "NetBSD/news68k bootxx 20020518"
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#define NEWSMIPS_BBINFO_MAGIC "NetBSD/newsmips bootxx 20020518"
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/* ------------------------------------------
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* pmax --
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* PMAX (DECstation / MIPS) boot block information
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*/
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/*
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* If mode is 0, there is just one sequence of blocks and one Dec_BootMap
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* is used. If mode is 1, there are multiple sequences of blocks
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* and multiple Dec_BootMaps are used, the last with numBlocks = 0.
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*/
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struct pmax_boot_map {
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int32_t num_blocks; /* Number of blocks to read. */
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int32_t start_block; /* Starting block on disk. */
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};
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/*
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* This is the structure of a disk or tape boot block. The boot_map
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* can either be a single boot count and start block (contiguous mode)
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* or a list of up to 61 (to fill a 512 byte sector) block count and
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* start block pairs. Under NetBSD, contiguous mode is always used.
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*/
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struct pmax_boot_block {
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uint8_t pad[8];
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int32_t magic; /* PMAX_BOOT_MAGIC */
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int32_t mode; /* Mode for boot info. */
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uint32_t load_addr; /* Address to start loading. */
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uint32_t exec_addr; /* Address to start execing. */
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struct pmax_boot_map map[61]; /* boot program section(s). */
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} __attribute__((__packed__));
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#define PMAX_BOOT_MAGIC 0x0002757a
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#define PMAX_BOOTMODE_CONTIGUOUS 0
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#define PMAX_BOOTMODE_SCATTERED 1
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#define PMAX_BOOT_BLOCK_OFFSET 0
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#define PMAX_BOOT_BLOCK_BLOCKSIZE 512
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/* ------------------------------------------
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* sparc
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*/
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#define SPARC_BOOT_BLOCK_OFFSET 512
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#define SPARC_BOOT_BLOCK_BLOCKSIZE 512
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#define SPARC_BOOT_BLOCK_MAX_SIZE (512 * 15)
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/* Magic string -- 32 bytes long (including the NUL) */
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#define SPARC_BBINFO_MAGIC "NetBSD/sparc bootxx 20020515"
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/* ------------------------------------------
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* sparc64
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*/
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#define SPARC64_BOOT_BLOCK_OFFSET 512
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#define SPARC64_BOOT_BLOCK_BLOCKSIZE 512
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#define SPARC64_BOOT_BLOCK_MAX_SIZE (512 * 15)
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/* ------------------------------------------
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* sun68k (sun2, sun3)
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*/
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#define SUN68K_BOOT_BLOCK_OFFSET 512
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#define SUN68K_BOOT_BLOCK_BLOCKSIZE 512
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#define SUN68K_BOOT_BLOCK_MAX_SIZE (512 * 15)
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/* Magic string -- 32 bytes long (including the NUL) */
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#define SUN68K_BBINFO_MAGIC "NetBSD/sun68k bootxx 20020515"
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/* ------------------------------------------
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* vax --
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* VAX boot block information
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*/
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struct vax_boot_block {
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/* Note that these don't overlap any of the pmax boot block */
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uint8_t pad0[2];
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uint8_t bb_id_offset; /* offset in words to id (magic1)*/
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uint8_t bb_mbone; /* must be one */
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uint16_t bb_lbn_hi; /* lbn (hi word) of bootstrap */
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uint16_t bb_lbn_low; /* lbn (low word) of bootstrap */
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uint8_t pad1[332];
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/* The rest of these fields are identification area and describe
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* the secondary block for uVAX VMB.
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*/
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uint8_t bb_magic1; /* magic number */
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uint8_t bb_mbz1; /* must be zero */
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uint8_t bb_pad1; /* any value */
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uint8_t bb_sum1; /* ~(magic1 + mbz1 + pad1) */
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uint8_t bb_mbz2; /* must be zero */
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uint8_t bb_volinfo; /* volinfo */
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uint8_t bb_pad2a; /* any value */
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uint8_t bb_pad2b; /* any value */
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uint32_t bb_size; /* size in blocks of bootstrap */
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uint32_t bb_load; /* load offset to bootstrap */
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uint32_t bb_entry; /* byte offset in bootstrap */
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uint32_t bb_sum3; /* sum of previous 3 fields */
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/* The rest is unused.
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*/
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uint8_t pad2[148];
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} __attribute__((__packed__));
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#define VAX_BOOT_MAGIC1 0x18 /* size of BB info? */
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#define VAX_BOOT_VOLINFO_NONE 0x00 /* no special info */
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#define VAX_BOOT_VOLINFO_SS 0x01 /* single sided */
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#define VAX_BOOT_VOLINFO_DS 0x81 /* double sided */
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#define VAX_BOOT_SIZE 15 /* 15 blocks */
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#define VAX_BOOT_LOAD 0 /* no load offset */
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#define VAX_BOOT_ENTRY 0x200 /* one block in */
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#define VAX_BOOT_BLOCK_OFFSET 0
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#define VAX_BOOT_BLOCK_BLOCKSIZE 512
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/* ------------------------------------------
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* x68k
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*/
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#define X68K_BOOT_BLOCK_OFFSET 0
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#define X68K_BOOT_BLOCK_BLOCKSIZE 512
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#define X68K_BOOT_BLOCK_MAX_SIZE (512 * 16)
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/* Magic string -- 32 bytes long (including the NUL) */
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#define X68K_BBINFO_MAGIC "NetBSD/x68k bootxx 20020601"
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#endif /* !_SYS_BOOTBLOCK_H */
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