bootinfo.h revision 1.14.2.1
1 /* $NetBSD: bootinfo.h,v 1.14.2.1 2009/03/03 18:29:36 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 #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 41 #ifndef _LOCORE 42 43 struct btinfo_common { 44 int len; 45 int type; 46 }; 47 48 struct btinfo_bootpath { 49 struct btinfo_common common; 50 char bootpath[80]; 51 }; 52 53 struct btinfo_rootdevice { 54 struct btinfo_common common; 55 char devname[16]; 56 }; 57 58 struct btinfo_bootdisk { 59 struct btinfo_common common; 60 int labelsector; /* label valid if != -1 */ 61 struct { 62 uint16_t type, checksum; 63 char packname[16]; 64 } label; 65 int biosdev; 66 int partition; 67 }; 68 69 struct btinfo_bootwedge { 70 struct btinfo_common common; 71 int biosdev; 72 daddr_t startblk; 73 uint64_t nblks; 74 daddr_t matchblk; 75 uint64_t matchnblks; 76 uint8_t matchhash[16]; /* MD5 hash */ 77 } __packed; 78 79 struct btinfo_netif { 80 struct btinfo_common common; 81 char ifname[16]; 82 int bus; 83 #define BI_BUS_ISA 0 84 #define BI_BUS_PCI 1 85 union { 86 unsigned int iobase; /* ISA */ 87 unsigned int tag; /* PCI, BIOS format */ 88 } addr; 89 }; 90 91 struct btinfo_console { 92 struct btinfo_common common; 93 char devname[16]; 94 int addr; 95 int speed; 96 }; 97 98 struct btinfo_symtab { 99 struct btinfo_common common; 100 int nsym; 101 int ssym; 102 int esym; 103 }; 104 105 struct bi_memmap_entry { 106 uint64_t addr; /* beginning of block */ /* 8 */ 107 uint64_t size; /* size of block */ /* 8 */ 108 uint32_t type; /* type of block */ /* 4 */ 109 } __packed; /* == 20 */ 110 111 #define BIM_Memory 1 /* available RAM usable by OS */ 112 #define BIM_Reserved 2 /* in use or reserved by the system */ 113 #define BIM_ACPI 3 /* ACPI Reclaim memory */ 114 #define BIM_NVS 4 /* ACPI NVS memory */ 115 116 struct btinfo_memmap { 117 struct btinfo_common common; 118 int num; 119 struct bi_memmap_entry entry[1]; /* var len */ 120 }; 121 122 #if HAVE_NBTOOL_CONFIG_H 123 #include <nbinclude/sys/bootblock.h> 124 #else 125 #include <sys/bootblock.h> 126 #endif /* HAVE_NBTOOL_CONFIG_H */ 127 128 /* 129 * Structure describing disk info as seen by the BIOS. 130 */ 131 struct bi_biosgeom_entry { 132 int sec, head, cyl; /* geometry */ 133 uint64_t totsec; /* LBA sectors from ext int13 */ 134 int flags, dev; /* flags, BIOS device # */ 135 #define BI_GEOM_INVALID 0x000001 136 #define BI_GEOM_EXTINT13 0x000002 137 #ifdef BIOSDISK_EXTINFO_V3 138 #define BI_GEOM_BADCKSUM 0x000004 /* v3.x checksum invalid */ 139 #define BI_GEOM_BUS_MASK 0x00ff00 /* connecting bus type */ 140 #define BI_GEOM_BUS_ISA 0x000100 141 #define BI_GEOM_BUS_PCI 0x000200 142 #define BI_GEOM_BUS_OTHER 0x00ff00 143 #define BI_GEOM_IFACE_MASK 0xff0000 /* interface type */ 144 #define BI_GEOM_IFACE_ATA 0x010000 145 #define BI_GEOM_IFACE_ATAPI 0x020000 146 #define BI_GEOM_IFACE_SCSI 0x030000 147 #define BI_GEOM_IFACE_USB 0x040000 148 #define BI_GEOM_IFACE_1394 0x050000 /* Firewire */ 149 #define BI_GEOM_IFACE_FIBRE 0x060000 /* Fibre channel */ 150 #define BI_GEOM_IFACE_OTHER 0xff0000 151 unsigned int cksum; /* MBR checksum */ 152 unsigned int interface_path; /* ISA iobase PCI bus/dev/fun */ 153 uint64_t device_path; 154 int res0; /* future expansion; 0 now */ 155 #else 156 unsigned int cksum; /* MBR checksum */ 157 int res0, res1, res2, res3; /* future expansion; 0 now */ 158 #endif 159 struct mbr_partition dosparts[MBR_PART_COUNT]; /* MBR itself */ 160 } __packed; 161 162 struct btinfo_biosgeom { 163 struct btinfo_common common; 164 int num; 165 struct bi_biosgeom_entry disk[1]; /* var len */ 166 }; 167 168 struct bi_modulelist_entry { 169 char path[80]; 170 int type; 171 int len; 172 uint32_t base; 173 }; 174 #define BI_MODULE_NONE 0x00 175 #define BI_MODULE_ELF 0x01 176 177 struct btinfo_modulelist { 178 struct btinfo_common common; 179 int num; 180 uint32_t endpa; 181 /* bi_modulelist_entry list follows */ 182 }; 183 184 struct btinfo_framebuffer { 185 struct btinfo_common common; 186 uint64_t physaddr; 187 uint32_t flags; 188 uint32_t width; 189 uint32_t height; 190 uint16_t stride; 191 uint8_t depth; 192 uint8_t rnum; 193 uint8_t gnum; 194 uint8_t bnum; 195 uint8_t rpos; 196 uint8_t gpos; 197 uint8_t bpos; 198 uint8_t reserved[16]; 199 }; 200 201 #endif /* _LOCORE */ 202 203 #ifdef _KERNEL 204 205 #define BOOTINFO_MAXSIZE 4096 206 207 #ifndef _LOCORE 208 /* 209 * Structure that holds the information passed by the boot loader. 210 */ 211 struct bootinfo { 212 /* Number of bootinfo_* entries in bi_data. */ 213 uint32_t bi_nentries; 214 215 /* Raw data of bootinfo entries. The first one (if any) is 216 * found at bi_data[0] and can be casted to (bootinfo_common *). 217 * Once this is done, the following entry is found at 'len' 218 * offset as specified by the previous entry. */ 219 uint8_t bi_data[BOOTINFO_MAXSIZE - sizeof(uint32_t)]; 220 }; 221 222 extern struct bootinfo bootinfo; 223 224 void *lookup_bootinfo(int); 225 #endif /* _LOCORE */ 226 227 #endif /* _KERNEL */ 228
Indexes created Sun Oct 19 16:10:00 GMT 2025