1/* $NetBSD: bootinfo.h,v 1.18 2011/05/26 04:25:28 uebayasi 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#define BTINFO_BOOTPATH 0 30#define BTINFO_ROOTDEVICE 1 31#define BTINFO_BOOTDISK 3 32#define BTINFO_NETIF 4 33#define BTINFO_CONSOLE 6 34#define BTINFO_BIOSGEOM 7 35#define BTINFO_SYMTAB 8 36#define BTINFO_MEMMAP 9 37#define BTINFO_BOOTWEDGE 10 38#define BTINFO_MODULELIST 11 39#define BTINFO_FRAMEBUFFER 12 40#define BTINFO_USERCONFCOMMANDS 13 41 42#ifndef _LOCORE 43 44struct btinfo_common { 45 int len; 46 int type; 47}; 48 49struct btinfo_bootpath { 50 struct btinfo_common common; 51 char bootpath[80]; 52}; 53 54struct btinfo_rootdevice { 55 struct btinfo_common common; 56 char devname[16]; 57}; 58 59struct btinfo_bootdisk { 60 struct btinfo_common common; 61 int labelsector; /* label valid if != -1 */ 62 struct { 63 uint16_t type, checksum; 64 char packname[16]; 65 } label; 66 int biosdev; 67 int partition; 68}; 69 70struct btinfo_bootwedge { 71 struct btinfo_common common; 72 int biosdev; 73 daddr_t startblk; 74 uint64_t nblks; 75 daddr_t matchblk; 76 uint64_t matchnblks; 77 uint8_t matchhash[16]; /* MD5 hash */ 78} __packed; 79 80struct btinfo_netif { 81 struct btinfo_common common; 82 char ifname[16]; 83 int bus; 84#define BI_BUS_ISA 0 85#define BI_BUS_PCI 1 86 union { 87 unsigned int iobase; /* ISA */ 88 unsigned int tag; /* PCI, BIOS format */ 89 } addr; 90}; 91 92struct btinfo_console { 93 struct btinfo_common common; 94 char devname[16]; 95 int addr; 96 int speed; 97}; 98 99struct btinfo_symtab { 100 struct btinfo_common common; 101 int nsym; 102 int ssym; 103 int esym; 104}; 105 106struct bi_memmap_entry { 107 uint64_t addr; /* beginning of block */ /* 8 */ 108 uint64_t size; /* size of block */ /* 8 */ 109 uint32_t type; /* type of block */ /* 4 */ 110} __packed; /* == 20 */ 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 117struct btinfo_memmap { 118 struct btinfo_common common; 119 int num; 120 struct bi_memmap_entry entry[1]; /* var len */ 121}; 122 123#if HAVE_NBTOOL_CONFIG_H 124#include <nbinclude/sys/bootblock.h> 125#else 126#include <sys/bootblock.h> 127#endif /* HAVE_NBTOOL_CONFIG_H */ 128 129/* 130 * Structure describing disk info as seen by the BIOS. 131 */ 132struct bi_biosgeom_entry { 133 int sec, head, cyl; /* geometry */ 134 uint64_t totsec; /* LBA sectors from ext int13 */ 135 int flags, dev; /* flags, BIOS device # */ 136#define BI_GEOM_INVALID 0x000001 137#define BI_GEOM_EXTINT13 0x000002 138#ifdef BIOSDISK_EXTINFO_V3 139#define BI_GEOM_BADCKSUM 0x000004 /* v3.x checksum invalid */ 140#define BI_GEOM_BUS_MASK 0x00ff00 /* connecting bus type */ 141#define BI_GEOM_BUS_ISA 0x000100 142#define BI_GEOM_BUS_PCI 0x000200 143#define BI_GEOM_BUS_OTHER 0x00ff00 144#define BI_GEOM_IFACE_MASK 0xff0000 /* interface type */ 145#define BI_GEOM_IFACE_ATA 0x010000 146#define BI_GEOM_IFACE_ATAPI 0x020000 147#define BI_GEOM_IFACE_SCSI 0x030000 148#define BI_GEOM_IFACE_USB 0x040000 149#define BI_GEOM_IFACE_1394 0x050000 /* Firewire */ 150#define BI_GEOM_IFACE_FIBRE 0x060000 /* Fibre channel */ 151#define BI_GEOM_IFACE_OTHER 0xff0000 152 unsigned int cksum; /* MBR checksum */ 153 unsigned int interface_path; /* ISA iobase PCI bus/dev/fun */ 154 uint64_t device_path; 155 int res0; /* future expansion; 0 now */ 156#else 157 unsigned int cksum; /* MBR checksum */ 158 int res0, res1, res2, res3; /* future expansion; 0 now */ 159#endif 160 struct mbr_partition dosparts[MBR_PART_COUNT]; /* MBR itself */ 161} __packed; 162 163struct btinfo_biosgeom { 164 struct btinfo_common common; 165 int num; 166 struct bi_biosgeom_entry disk[1]; /* var len */ 167}; 168 169struct bi_modulelist_entry { 170 char path[80]; 171 int type; 172 int len; 173 uint32_t base; 174}; 175#define BI_MODULE_NONE 0x00 176#define BI_MODULE_ELF 0x01 177#define BI_MODULE_IMAGE 0x02 178#define BI_MODULE_RND 0x03 179 180struct btinfo_modulelist { 181 struct btinfo_common common; 182 int num; 183 uint32_t endpa; 184 /* bi_modulelist_entry list follows */ 185}; 186 187struct btinfo_framebuffer { 188 struct btinfo_common common; 189 uint64_t physaddr; 190 uint32_t flags; 191 uint32_t width; 192 uint32_t height; 193 uint16_t stride; 194 uint8_t depth; 195 uint8_t rnum; 196 uint8_t gnum; 197 uint8_t bnum; 198 uint8_t rpos; 199 uint8_t gpos; 200 uint8_t bpos; 201 uint16_t vbemode; 202 uint8_t reserved[14]; 203}; 204 205struct bi_userconfcommand { 206 char text[80]; 207}; 208 209struct btinfo_userconfcommands { 210 struct btinfo_common common; 211 int num; 212 /* bi_userconfcommand list follows */ 213}; 214 215#endif /* _LOCORE */ 216 217#ifdef _KERNEL 218 219#define BOOTINFO_MAXSIZE 4096 220 221#ifndef _LOCORE 222/* 223 * Structure that holds the information passed by the boot loader. 224 */ 225struct bootinfo { 226 /* Number of bootinfo_* entries in bi_data. */ 227 uint32_t bi_nentries; 228 229 /* Raw data of bootinfo entries. The first one (if any) is 230 * found at bi_data[0] and can be casted to (bootinfo_common *). 231 * Once this is done, the following entry is found at 'len' 232 * offset as specified by the previous entry. */ 233 uint8_t bi_data[BOOTINFO_MAXSIZE - sizeof(uint32_t)]; 234}; 235 236extern struct bootinfo bootinfo; 237 238void *lookup_bootinfo(int); 239#endif /* _LOCORE */ 240 241#endif /* _KERNEL */ 242