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bootinfo.h revision 1.3 
      1 /*	$NetBSD: bootinfo.h,v 1.3 2003/10/08 04:25:46 lukem 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  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed for the NetBSD Project
     18  *	by Matthias Drochner.
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  *
     33  */
     34 
     35 #ifndef _LOCORE
     36 
     37 struct btinfo_common {
     38 	int len;
     39 	int type;
     40 };
     41 
     42 #define BTINFO_BOOTPATH 0
     43 #define BTINFO_BOOTDISK 3
     44 #define BTINFO_NETIF 4
     45 #define BTINFO_CONSOLE 6
     46 #define BTINFO_BIOSGEOM 7
     47 #define BTINFO_SYMTAB 8
     48 #define BTINFO_MEMMAP 9
     49 
     50 struct btinfo_bootpath {
     51 	struct btinfo_common common;
     52 	char bootpath[80];
     53 };
     54 
     55 struct btinfo_bootdisk {
     56 	struct btinfo_common common;
     57 	int labelsector; /* label valid if != -1 */
     58 	struct {
     59 		u_int16_t type, checksum;
     60 		char packname[16];
     61 	} label;
     62 	int biosdev;
     63 	int partition;
     64 };
     65 
     66 struct btinfo_netif {
     67 	struct btinfo_common common;
     68 	char ifname[16];
     69 	int bus;
     70 #define BI_BUS_ISA 0
     71 #define BI_BUS_PCI 1
     72 	union {
     73 		unsigned int iobase; /* ISA */
     74 		unsigned int tag; /* PCI, BIOS format */
     75 	} addr;
     76 };
     77 
     78 struct btinfo_console {
     79 	struct btinfo_common common;
     80 	char devname[16];
     81 	int addr;
     82 	int speed;
     83 };
     84 
     85 struct btinfo_symtab {
     86 	struct btinfo_common common;
     87 	int nsym;
     88 	int ssym;
     89 	int esym;
     90 };
     91 
     92 struct bi_memmap_entry {
     93 	u_int64_t addr;		/* beginning of block */	/* 8 */
     94 	u_int64_t size;		/* size of block */		/* 8 */
     95 	u_int32_t type;		/* type of block */		/* 4 */
     96 } __attribute__((packed));				/*	== 20 */
     97 
     98 #define	BIM_Memory	1	/* available RAM usable by OS */
     99 #define	BIM_Reserved	2	/* in use or reserved by the system */
    100 #define	BIM_ACPI	3	/* ACPI Reclaim memory */
    101 #define	BIM_NVS		4	/* ACPI NVS memory */
    102 
    103 struct btinfo_memmap {
    104 	struct btinfo_common common;
    105 	int num;
    106 	struct bi_memmap_entry entry[1]; /* var len */
    107 };
    108 
    109 #include <sys/bootblock.h>
    110 
    111 /*
    112  * Structure describing disk info as seen by the BIOS.
    113  */
    114 struct bi_biosgeom_entry {
    115 	int		sec, head, cyl;		/* geometry */
    116 	u_int64_t	totsec;			/* LBA sectors from ext int13 */
    117 	int		flags, dev;		/* flags, BIOS device # */
    118 #define BI_GEOM_INVALID		0x000001
    119 #define BI_GEOM_EXTINT13	0x000002
    120 #ifdef BIOSDISK_EXT13INFO_V3
    121 #define BI_GEOM_BADCKSUM	0x000004	/* v3.x checksum invalid */
    122 #define BI_GEOM_BUS_MASK	0x00ff00	/* connecting bus type */
    123 #define BI_GEOM_BUS_ISA		0x000100
    124 #define BI_GEOM_BUS_PCI		0x000200
    125 #define BI_GEOM_BUS_OTHER	0x00ff00
    126 #define BI_GEOM_IFACE_MASK	0xff0000	/* interface type */
    127 #define BI_GEOM_IFACE_ATA	0x010000
    128 #define BI_GEOM_IFACE_ATAPI	0x020000
    129 #define BI_GEOM_IFACE_SCSI	0x030000
    130 #define BI_GEOM_IFACE_USB	0x040000
    131 #define BI_GEOM_IFACE_1394	0x050000	/* Firewire */
    132 #define BI_GEOM_IFACE_FIBRE	0x060000	/* Fibre channel */
    133 #define BI_GEOM_IFACE_OTHER	0xff0000
    134 	unsigned int	cksum;			/* MBR checksum */
    135 	u_int		interface_path;		/* ISA iobase PCI bus/dev/fun */
    136 	u_int64_t	device_path;
    137 	int		res0;			/* future expansion; 0 now */
    138 #else
    139 	unsigned int	cksum;			/* MBR checksum */
    140 	int		res0, res1, res2, res3;	/* future expansion; 0 now */
    141 #endif
    142 	struct mbr_partition dosparts[MBR_PART_COUNT]; /* MBR itself */
    143 } __attribute__((packed));
    144 
    145 struct btinfo_biosgeom {
    146 	struct btinfo_common common;
    147 	int num;
    148 	struct bi_biosgeom_entry disk[1]; /* var len */
    149 };
    150 
    151 #ifdef _KERNEL
    152 void *lookup_bootinfo __P((int));
    153 #endif
    154 #endif /* _LOCORE */
    155 
    156 #ifdef _KERNEL
    157 #define BOOTINFO_MAXSIZE 4096
    158 #endif
    159