bootinfo.h revision 1.13
1 /* $NetBSD: bootinfo.h,v 1.13 2008/05/02 15:26:39 ad 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 40 #ifndef _LOCORE 41 42 struct btinfo_common { 43 int len; 44 int type; 45 }; 46 47 struct btinfo_bootpath { 48 struct btinfo_common common; 49 char bootpath[80]; 50 }; 51 52 struct btinfo_rootdevice { 53 struct btinfo_common common; 54 char devname[16]; 55 }; 56 57 struct btinfo_bootdisk { 58 struct btinfo_common common; 59 int labelsector; /* label valid if != -1 */ 60 struct { 61 uint16_t type, checksum; 62 char packname[16]; 63 } label; 64 int biosdev; 65 int partition; 66 }; 67 68 struct btinfo_bootwedge { 69 struct btinfo_common common; 70 int biosdev; 71 daddr_t startblk; 72 uint64_t nblks; 73 daddr_t matchblk; 74 uint64_t matchnblks; 75 uint8_t matchhash[16]; /* MD5 hash */ 76 } __packed; 77 78 struct btinfo_netif { 79 struct btinfo_common common; 80 char ifname[16]; 81 int bus; 82 #define BI_BUS_ISA 0 83 #define BI_BUS_PCI 1 84 union { 85 unsigned int iobase; /* ISA */ 86 unsigned int tag; /* PCI, BIOS format */ 87 } addr; 88 }; 89 90 struct btinfo_console { 91 struct btinfo_common common; 92 char devname[16]; 93 int addr; 94 int speed; 95 }; 96 97 struct btinfo_symtab { 98 struct btinfo_common common; 99 int nsym; 100 int ssym; 101 int esym; 102 }; 103 104 struct bi_memmap_entry { 105 uint64_t addr; /* beginning of block */ /* 8 */ 106 uint64_t size; /* size of block */ /* 8 */ 107 uint32_t type; /* type of block */ /* 4 */ 108 } __packed; /* == 20 */ 109 110 #define BIM_Memory 1 /* available RAM usable by OS */ 111 #define BIM_Reserved 2 /* in use or reserved by the system */ 112 #define BIM_ACPI 3 /* ACPI Reclaim memory */ 113 #define BIM_NVS 4 /* ACPI NVS memory */ 114 115 struct btinfo_memmap { 116 struct btinfo_common common; 117 int num; 118 struct bi_memmap_entry entry[1]; /* var len */ 119 }; 120 121 #if HAVE_NBTOOL_CONFIG_H 122 #include <nbinclude/sys/bootblock.h> 123 #else 124 #include <sys/bootblock.h> 125 #endif /* HAVE_NBTOOL_CONFIG_H */ 126 127 /* 128 * Structure describing disk info as seen by the BIOS. 129 */ 130 struct bi_biosgeom_entry { 131 int sec, head, cyl; /* geometry */ 132 uint64_t totsec; /* LBA sectors from ext int13 */ 133 int flags, dev; /* flags, BIOS device # */ 134 #define BI_GEOM_INVALID 0x000001 135 #define BI_GEOM_EXTINT13 0x000002 136 #ifdef BIOSDISK_EXTINFO_V3 137 #define BI_GEOM_BADCKSUM 0x000004 /* v3.x checksum invalid */ 138 #define BI_GEOM_BUS_MASK 0x00ff00 /* connecting bus type */ 139 #define BI_GEOM_BUS_ISA 0x000100 140 #define BI_GEOM_BUS_PCI 0x000200 141 #define BI_GEOM_BUS_OTHER 0x00ff00 142 #define BI_GEOM_IFACE_MASK 0xff0000 /* interface type */ 143 #define BI_GEOM_IFACE_ATA 0x010000 144 #define BI_GEOM_IFACE_ATAPI 0x020000 145 #define BI_GEOM_IFACE_SCSI 0x030000 146 #define BI_GEOM_IFACE_USB 0x040000 147 #define BI_GEOM_IFACE_1394 0x050000 /* Firewire */ 148 #define BI_GEOM_IFACE_FIBRE 0x060000 /* Fibre channel */ 149 #define BI_GEOM_IFACE_OTHER 0xff0000 150 unsigned int cksum; /* MBR checksum */ 151 unsigned int interface_path; /* ISA iobase PCI bus/dev/fun */ 152 uint64_t device_path; 153 int res0; /* future expansion; 0 now */ 154 #else 155 unsigned int cksum; /* MBR checksum */ 156 int res0, res1, res2, res3; /* future expansion; 0 now */ 157 #endif 158 struct mbr_partition dosparts[MBR_PART_COUNT]; /* MBR itself */ 159 } __packed; 160 161 struct btinfo_biosgeom { 162 struct btinfo_common common; 163 int num; 164 struct bi_biosgeom_entry disk[1]; /* var len */ 165 }; 166 167 struct bi_modulelist_entry { 168 char path[80]; 169 int type; 170 int len; 171 uint32_t base; 172 }; 173 #define BI_MODULE_NONE 0x00 174 #define BI_MODULE_ELF 0x01 175 176 struct btinfo_modulelist { 177 struct btinfo_common common; 178 int num; 179 uint32_t endpa; 180 /* bi_modulelist_entry list follows */ 181 }; 182 183 #endif /* _LOCORE */ 184 185 #ifdef _KERNEL 186 187 #define BOOTINFO_MAXSIZE 4096 188 189 #ifndef _LOCORE 190 /* 191 * Structure that holds the information passed by the boot loader. 192 */ 193 struct bootinfo { 194 /* Number of bootinfo_* entries in bi_data. */ 195 uint32_t bi_nentries; 196 197 /* Raw data of bootinfo entries. The first one (if any) is 198 * found at bi_data[0] and can be casted to (bootinfo_common *). 199 * Once this is done, the following entry is found at 'len' 200 * offset as specified by the previous entry. */ 201 uint8_t bi_data[BOOTINFO_MAXSIZE - sizeof(uint32_t)]; 202 }; 203 204 void *lookup_bootinfo(int); 205 #endif /* _LOCORE */ 206 207 #endif /* _KERNEL */ 208
Indexes created Wed Sep 24 02:09:48 GMT 2025