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bootinfo.h revision 1.13 
      1 /*	$NetBSD: bootinfo.h,v 1.13 2003/02/23 02:45:44 fvdl 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 #ifdef __x86_64__
     93 /*
     94  * Split in 32 bit values for the alignment of things, that must match
     95  * for i386 and x86_64, since they share a bootloader.
     96  */
     97 struct bi_memmap_entry {
     98         u_int32_t addrlo;
     99         u_int32_t addrhi;
    100         u_int32_t sizelo;
    101         u_int32_t sizehi;
    102         u_int32_t type;
    103 };
    104 #else
    105 struct bi_memmap_entry {
    106 	u_int64_t addr;		/* beginning of block */	/* 8 */
    107 	u_int64_t size;		/* size of block */		/* 8 */
    108 	u_int32_t type;		/* type of block */		/* 4 */
    109 };							/*	== 20 */
    110 #endif
    111 
    112 #define	BIM_Memory	1	/* available RAM usable by OS */
    113 #define	BIM_Reserved	2	/* in use or reserved by the system */
    114 #define	BIM_ACPI	3	/* ACPI Reclaim memory */
    115 #define	BIM_NVS		4	/* ACPI NVS memory */
    116 
    117 struct btinfo_memmap {
    118 	struct btinfo_common common;
    119 	int num;
    120 	struct bi_memmap_entry entry[1]; /* var len */
    121 };
    122 
    123 #include <sys/disklabel_mbr.h>
    124 
    125 /*
    126  * Structure describing disk info as seen by the BIOS.
    127  */
    128 struct bi_biosgeom_entry {
    129 	int sec, head, cyl;			/* geometry */
    130 	u_int64_t totsec;			/* LBA sectors from ext int13 */
    131 	int flags, dev;				/* flags, BIOS device # */
    132 #define BI_GEOM_INVALID		0x01
    133 #define BI_GEOM_EXTINT13	0x02
    134 	unsigned int cksum;			/* MBR checksum */
    135 	int res0, res1, res2, res3;		/* future expansion; 0 now */
    136 	struct mbr_partition dosparts[NMBRPART]; /* 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 __P((int));
    147 #endif
    148 #endif /* _LOCORE */
    149 
    150 #ifdef _KERNEL
    151 #define BOOTINFO_MAXSIZE 4096
    152 #endif
    153