bootinfo.h revision 1.25
1 /* $NetBSD: bootinfo.h,v 1.25 2017/01/24 11:09:14 nonaka 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 #define BTINFO_EFI 14 42 #define BTINFO_EFIMEMMAP 15 43 44 #define BTINFO_STR "bootpath", "rootdevice", "bootdisk", "netif", \ 45 "console", "biosgeom", "symtab", "memmap", "bootwedge", "modulelist", \ 46 "framebuffer", "userconfcommands", "efi", "efimemmap", 47 48 #ifndef _LOCORE 49 50 struct btinfo_common { 51 int len; 52 int type; 53 }; 54 55 struct btinfo_bootpath { 56 struct btinfo_common common; 57 char bootpath[80]; 58 }; 59 60 struct btinfo_rootdevice { 61 struct btinfo_common common; 62 char devname[16]; 63 }; 64 65 struct btinfo_bootdisk { 66 struct btinfo_common common; 67 int labelsector; /* label valid if != -1 */ 68 struct { 69 uint16_t type, checksum; 70 char packname[16]; 71 } label; 72 int biosdev; 73 int partition; 74 }; 75 76 struct btinfo_bootwedge { 77 struct btinfo_common common; 78 int biosdev; 79 daddr_t startblk; 80 uint64_t nblks; 81 daddr_t matchblk; 82 uint64_t matchnblks; 83 uint8_t matchhash[16]; /* MD5 hash */ 84 } __packed; 85 86 struct btinfo_netif { 87 struct btinfo_common common; 88 char ifname[16]; 89 int bus; 90 #define BI_BUS_ISA 0 91 #define BI_BUS_PCI 1 92 union { 93 unsigned int iobase; /* ISA */ 94 unsigned int tag; /* PCI, BIOS format */ 95 } addr; 96 }; 97 98 struct btinfo_console { 99 struct btinfo_common common; 100 char devname[16]; 101 int addr; 102 int speed; 103 }; 104 105 struct btinfo_symtab { 106 struct btinfo_common common; 107 int nsym; 108 int ssym; 109 int esym; 110 }; 111 112 struct bi_memmap_entry { 113 uint64_t addr; /* beginning of block */ /* 8 */ 114 uint64_t size; /* size of block */ /* 8 */ 115 uint32_t type; /* type of block */ /* 4 */ 116 } __packed; /* == 20 */ 117 118 #define BIM_Memory 1 /* available RAM usable by OS */ 119 #define BIM_Reserved 2 /* in use or reserved by the system */ 120 #define BIM_ACPI 3 /* ACPI Reclaim memory */ 121 #define BIM_NVS 4 /* ACPI NVS memory */ 122 123 struct btinfo_memmap { 124 struct btinfo_common common; 125 int num; 126 struct bi_memmap_entry entry[1]; /* var len */ 127 }; 128 129 #if HAVE_NBTOOL_CONFIG_H 130 #include <nbinclude/sys/bootblock.h> 131 #else 132 #include <sys/bootblock.h> 133 #endif /* HAVE_NBTOOL_CONFIG_H */ 134 135 /* 136 * Structure describing disk info as seen by the BIOS. 137 */ 138 struct bi_biosgeom_entry { 139 int sec, head, cyl; /* geometry */ 140 uint64_t totsec; /* LBA sectors from ext int13 */ 141 int flags, dev; /* flags, BIOS device # */ 142 #define BI_GEOM_INVALID 0x000001 143 #define BI_GEOM_EXTINT13 0x000002 144 #ifdef BIOSDISK_EXTINFO_V3 145 #define BI_GEOM_BADCKSUM 0x000004 /* v3.x checksum invalid */ 146 #define BI_GEOM_BUS_MASK 0x00ff00 /* connecting bus type */ 147 #define BI_GEOM_BUS_ISA 0x000100 148 #define BI_GEOM_BUS_PCI 0x000200 149 #define BI_GEOM_BUS_OTHER 0x00ff00 150 #define BI_GEOM_IFACE_MASK 0xff0000 /* interface type */ 151 #define BI_GEOM_IFACE_ATA 0x010000 152 #define BI_GEOM_IFACE_ATAPI 0x020000 153 #define BI_GEOM_IFACE_SCSI 0x030000 154 #define BI_GEOM_IFACE_USB 0x040000 155 #define BI_GEOM_IFACE_1394 0x050000 /* Firewire */ 156 #define BI_GEOM_IFACE_FIBRE 0x060000 /* Fibre channel */ 157 #define BI_GEOM_IFACE_OTHER 0xff0000 158 unsigned int cksum; /* MBR checksum */ 159 unsigned int interface_path; /* ISA iobase PCI bus/dev/fun */ 160 uint64_t device_path; 161 int res0; /* future expansion; 0 now */ 162 #else 163 unsigned int cksum; /* MBR checksum */ 164 int res0, res1, res2, res3; /* future expansion; 0 now */ 165 #endif 166 struct mbr_partition mbrparts[MBR_PART_COUNT]; /* MBR itself */ 167 } __packed; 168 169 struct btinfo_biosgeom { 170 struct btinfo_common common; 171 int num; 172 struct bi_biosgeom_entry disk[1]; /* var len */ 173 }; 174 175 struct bi_modulelist_entry { 176 char path[80]; 177 int type; 178 int len; 179 uint32_t base; 180 }; 181 #define BI_MODULE_NONE 0x00 182 #define BI_MODULE_ELF 0x01 183 #define BI_MODULE_IMAGE 0x02 184 #define BI_MODULE_RND 0x03 185 #define BI_MODULE_FS 0x04 186 187 struct btinfo_modulelist { 188 struct btinfo_common common; 189 int num; 190 uint32_t endpa; 191 /* bi_modulelist_entry list follows */ 192 }; 193 194 struct btinfo_framebuffer { 195 struct btinfo_common common; 196 uint64_t physaddr; 197 uint32_t flags; 198 uint32_t width; 199 uint32_t height; 200 uint16_t stride; 201 uint8_t depth; 202 uint8_t rnum; 203 uint8_t gnum; 204 uint8_t bnum; 205 uint8_t rpos; 206 uint8_t gpos; 207 uint8_t bpos; 208 uint16_t vbemode; 209 uint8_t reserved[14]; 210 }; 211 212 struct bi_userconfcommand { 213 char text[80]; 214 }; 215 216 struct btinfo_userconfcommands { 217 struct btinfo_common common; 218 int num; 219 /* bi_userconfcommand list follows */ 220 }; 221 222 /* EFI Information */ 223 struct btinfo_efi { 224 struct btinfo_common common; 225 uint64_t systblpa; /* Physical address of the EFI System Table */ 226 uint32_t flags; 227 #define BI_EFI_32BIT __BIT(0) /* 32bit UEFI */ 228 uint8_t reserved[12]; 229 }; 230 231 struct btinfo_efimemmap { 232 struct btinfo_common common; 233 uint32_t num; /* number of memory descriptor */ 234 uint32_t version; /* version of memory descriptor */ 235 uint32_t size; /* size of memory descriptor */ 236 uint8_t memmap[1]; /* whole memory descriptors */ 237 }; 238 239 #endif /* _LOCORE */ 240 241 #ifdef _KERNEL 242 243 #define BOOTINFO_MAXSIZE 4096 244 245 #ifndef _LOCORE 246 /* 247 * Structure that holds the information passed by the boot loader. 248 */ 249 struct bootinfo { 250 /* Number of bootinfo_* entries in bi_data. */ 251 uint32_t bi_nentries; 252 253 /* Raw data of bootinfo entries. The first one (if any) is 254 * found at bi_data[0] and can be casted to (bootinfo_common *). 255 * Once this is done, the following entry is found at 'len' 256 * offset as specified by the previous entry. */ 257 uint8_t bi_data[BOOTINFO_MAXSIZE - sizeof(uint32_t)]; 258 }; 259 260 extern struct bootinfo bootinfo; 261 262 void *lookup_bootinfo(int); 263 void aprint_bootinfo(void); 264 #endif /* _LOCORE */ 265 266 #endif /* _KERNEL */ 267
Indexes created Mon Sep 29 21:09:56 GMT 2025