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bootinfo.h revision 1.2.2.2 
      1 /*	$NetBSD: bootinfo.h,v 1.2.2.2 2004/09/18 14:42:37 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 #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 
     44 struct btinfo_bootpath {
     45 	struct btinfo_common common;
     46 	char bootpath[80];
     47 };
     48 
     49 struct btinfo_bootdisk {
     50 	struct btinfo_common common;
     51 	int labelsector; /* label valid if != -1 */
     52 	struct {
     53 		u_int16_t type, checksum;
     54 		char packname[16];
     55 	} label;
     56 	int biosdev;
     57 	int partition;
     58 };
     59 
     60 struct btinfo_netif {
     61 	struct btinfo_common common;
     62 	char ifname[16];
     63 	int bus;
     64 #define BI_BUS_ISA 0
     65 #define BI_BUS_PCI 1
     66 	union {
     67 		unsigned int iobase; /* ISA */
     68 		unsigned int tag; /* PCI, BIOS format */
     69 	} addr;
     70 };
     71 
     72 struct btinfo_console {
     73 	struct btinfo_common common;
     74 	char devname[16];
     75 	int addr;
     76 	int speed;
     77 };
     78 
     79 struct btinfo_symtab {
     80 	struct btinfo_common common;
     81 	int nsym;
     82 	int ssym;
     83 	int esym;
     84 };
     85 
     86 struct bi_memmap_entry {
     87 	u_int64_t addr;		/* beginning of block */	/* 8 */
     88 	u_int64_t size;		/* size of block */		/* 8 */
     89 	u_int32_t type;		/* type of block */		/* 4 */
     90 } __attribute__((packed));				/*	== 20 */
     91 
     92 #define	BIM_Memory	1	/* available RAM usable by OS */
     93 #define	BIM_Reserved	2	/* in use or reserved by the system */
     94 #define	BIM_ACPI	3	/* ACPI Reclaim memory */
     95 #define	BIM_NVS		4	/* ACPI NVS memory */
     96 
     97 struct btinfo_memmap {
     98 	struct btinfo_common common;
     99 	int num;
    100 	struct bi_memmap_entry entry[1]; /* var len */
    101 };
    102 
    103 #include <sys/bootblock.h>
    104 
    105 /*
    106  * Structure describing disk info as seen by the BIOS.
    107  */
    108 struct bi_biosgeom_entry {
    109 	int		sec, head, cyl;		/* geometry */
    110 	u_int64_t	totsec;			/* LBA sectors from ext int13 */
    111 	int		flags, dev;		/* flags, BIOS device # */
    112 #define BI_GEOM_INVALID		0x000001
    113 #define BI_GEOM_EXTINT13	0x000002
    114 #ifdef BIOSDISK_EXT13INFO_V3
    115 #define BI_GEOM_BADCKSUM	0x000004	/* v3.x checksum invalid */
    116 #define BI_GEOM_BUS_MASK	0x00ff00	/* connecting bus type */
    117 #define BI_GEOM_BUS_ISA		0x000100
    118 #define BI_GEOM_BUS_PCI		0x000200
    119 #define BI_GEOM_BUS_OTHER	0x00ff00
    120 #define BI_GEOM_IFACE_MASK	0xff0000	/* interface type */
    121 #define BI_GEOM_IFACE_ATA	0x010000
    122 #define BI_GEOM_IFACE_ATAPI	0x020000
    123 #define BI_GEOM_IFACE_SCSI	0x030000
    124 #define BI_GEOM_IFACE_USB	0x040000
    125 #define BI_GEOM_IFACE_1394	0x050000	/* Firewire */
    126 #define BI_GEOM_IFACE_FIBRE	0x060000	/* Fibre channel */
    127 #define BI_GEOM_IFACE_OTHER	0xff0000
    128 	unsigned int	cksum;			/* MBR checksum */
    129 	u_int		interface_path;		/* ISA iobase PCI bus/dev/fun */
    130 	u_int64_t	device_path;
    131 	int		res0;			/* future expansion; 0 now */
    132 #else
    133 	unsigned int	cksum;			/* MBR checksum */
    134 	int		res0, res1, res2, res3;	/* future expansion; 0 now */
    135 #endif
    136 	struct mbr_partition dosparts[MBR_PART_COUNT]; /* MBR itself */
    137 } __attribute__((packed));
    138 
    139 struct btinfo_biosgeom {
    140 	struct btinfo_common common;
    141 	int num;
    142 	struct bi_biosgeom_entry disk[1]; /* var len */
    143 };
    144 
    145 #ifdef _KERNEL
    146 void *lookup_bootinfo(int);
    147 #endif
    148 #endif /* _LOCORE */
    149 
    150 #ifdef _KERNEL
    151 #define BOOTINFO_MAXSIZE 4096
    152 #endif
    153