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bootinfo.h revision 1.6 
      1 /*	$NetBSD: bootinfo.h,v 1.6 2004/10/23 17:20:04 thorpej 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 #ifndef _LOCORE
     30 
     31 struct btinfo_common {
     32 	int len;
     33 	int type;
     34 };
     35 
     36 #define BTINFO_BOOTPATH		0
     37 #define BTINFO_BOOTDISK		3
     38 #define BTINFO_NETIF		4
     39 #define BTINFO_CONSOLE		6
     40 #define BTINFO_BIOSGEOM		7
     41 #define BTINFO_SYMTAB		8
     42 #define BTINFO_MEMMAP		9
     43 #define	BTINFO_BOOTWEDGE	10
     44 
     45 struct btinfo_bootpath {
     46 	struct btinfo_common common;
     47 	char bootpath[80];
     48 };
     49 
     50 struct btinfo_bootdisk {
     51 	struct btinfo_common common;
     52 	int labelsector; /* label valid if != -1 */
     53 	struct {
     54 		u_int16_t type, checksum;
     55 		char packname[16];
     56 	} label;
     57 	int biosdev;
     58 	int partition;
     59 };
     60 
     61 struct btinfo_bootwedge {
     62 	struct btinfo_common common;
     63 	int biosdev;
     64 	daddr_t startblk;
     65 	uint64_t nblks;
     66 	daddr_t matchblk;
     67 	uint64_t matchnblks;
     68 	uint8_t matchhash[16];	/* MD5 hash */
     69 };
     70 
     71 struct btinfo_netif {
     72 	struct btinfo_common common;
     73 	char ifname[16];
     74 	int bus;
     75 #define BI_BUS_ISA 0
     76 #define BI_BUS_PCI 1
     77 	union {
     78 		unsigned int iobase; /* ISA */
     79 		unsigned int tag; /* PCI, BIOS format */
     80 	} addr;
     81 };
     82 
     83 struct btinfo_console {
     84 	struct btinfo_common common;
     85 	char devname[16];
     86 	int addr;
     87 	int speed;
     88 };
     89 
     90 struct btinfo_symtab {
     91 	struct btinfo_common common;
     92 	int nsym;
     93 	int ssym;
     94 	int esym;
     95 };
     96 
     97 struct bi_memmap_entry {
     98 	u_int64_t addr;		/* beginning of block */	/* 8 */
     99 	u_int64_t size;		/* size of block */		/* 8 */
    100 	u_int32_t type;		/* type of block */		/* 4 */
    101 } __attribute__((packed));				/*	== 20 */
    102 
    103 #define	BIM_Memory	1	/* available RAM usable by OS */
    104 #define	BIM_Reserved	2	/* in use or reserved by the system */
    105 #define	BIM_ACPI	3	/* ACPI Reclaim memory */
    106 #define	BIM_NVS		4	/* ACPI NVS memory */
    107 
    108 struct btinfo_memmap {
    109 	struct btinfo_common common;
    110 	int num;
    111 	struct bi_memmap_entry entry[1]; /* var len */
    112 };
    113 
    114 #include <sys/bootblock.h>
    115 
    116 /*
    117  * Structure describing disk info as seen by the BIOS.
    118  */
    119 struct bi_biosgeom_entry {
    120 	int		sec, head, cyl;		/* geometry */
    121 	u_int64_t	totsec;			/* LBA sectors from ext int13 */
    122 	int		flags, dev;		/* flags, BIOS device # */
    123 #define BI_GEOM_INVALID		0x000001
    124 #define BI_GEOM_EXTINT13	0x000002
    125 #ifdef BIOSDISK_EXT13INFO_V3
    126 #define BI_GEOM_BADCKSUM	0x000004	/* v3.x checksum invalid */
    127 #define BI_GEOM_BUS_MASK	0x00ff00	/* connecting bus type */
    128 #define BI_GEOM_BUS_ISA		0x000100
    129 #define BI_GEOM_BUS_PCI		0x000200
    130 #define BI_GEOM_BUS_OTHER	0x00ff00
    131 #define BI_GEOM_IFACE_MASK	0xff0000	/* interface type */
    132 #define BI_GEOM_IFACE_ATA	0x010000
    133 #define BI_GEOM_IFACE_ATAPI	0x020000
    134 #define BI_GEOM_IFACE_SCSI	0x030000
    135 #define BI_GEOM_IFACE_USB	0x040000
    136 #define BI_GEOM_IFACE_1394	0x050000	/* Firewire */
    137 #define BI_GEOM_IFACE_FIBRE	0x060000	/* Fibre channel */
    138 #define BI_GEOM_IFACE_OTHER	0xff0000
    139 	unsigned int	cksum;			/* MBR checksum */
    140 	u_int		interface_path;		/* ISA iobase PCI bus/dev/fun */
    141 	u_int64_t	device_path;
    142 	int		res0;			/* future expansion; 0 now */
    143 #else
    144 	unsigned int	cksum;			/* MBR checksum */
    145 	int		res0, res1, res2, res3;	/* future expansion; 0 now */
    146 #endif
    147 	struct mbr_partition dosparts[MBR_PART_COUNT]; /* MBR itself */
    148 } __attribute__((packed));
    149 
    150 struct btinfo_biosgeom {
    151 	struct btinfo_common common;
    152 	int num;
    153 	struct bi_biosgeom_entry disk[1]; /* var len */
    154 };
    155 
    156 #ifdef _KERNEL
    157 void *lookup_bootinfo(int);
    158 #endif
    159 #endif /* _LOCORE */
    160 
    161 #ifdef _KERNEL
    162 #define BOOTINFO_MAXSIZE 4096
    163 #endif
    164