| 1 | /* $NetBSD: bootinfo.h,v 1.24 2016/01/28 01:09:56 christos 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 | |
| 43 | #define BTINFO_STR "bootpath", "rootdevice", "bootdisk", "netif", \ |
| 44 | "console", "biosgeom", "symtab", "memmap", "bootwedge", "modulelist", \ |
| 45 | "framebuffer", "userconfcommands", "efi", |
| 46 | |
| 47 | #ifndef _LOCORE |
| 48 | |
| 49 | struct btinfo_common { |
| 50 | int len; |
| 51 | int type; |
| 52 | }; |
| 53 | |
| 54 | struct btinfo_bootpath { |
| 55 | struct btinfo_common common; |
| 56 | char bootpath[80]; |
| 57 | }; |
| 58 | |
| 59 | struct btinfo_rootdevice { |
| 60 | struct btinfo_common common; |
| 61 | char devname[16]; |
| 62 | }; |
| 63 | |
| 64 | struct btinfo_bootdisk { |
| 65 | struct btinfo_common common; |
| 66 | int labelsector; /* label valid if != -1 */ |
| 67 | struct { |
| 68 | uint16_t type, checksum; |
| 69 | char packname[16]; |
| 70 | } label; |
| 71 | int biosdev; |
| 72 | int partition; |
| 73 | }; |
| 74 | |
| 75 | struct btinfo_bootwedge { |
| 76 | struct btinfo_common common; |
| 77 | int biosdev; |
| 78 | daddr_t startblk; |
| 79 | uint64_t nblks; |
| 80 | daddr_t matchblk; |
| 81 | uint64_t matchnblks; |
| 82 | uint8_t matchhash[16]; /* MD5 hash */ |
| 83 | } __packed; |
| 84 | |
| 85 | struct btinfo_netif { |
| 86 | struct btinfo_common common; |
| 87 | char ifname[16]; |
| 88 | int bus; |
| 89 | #define BI_BUS_ISA 0 |
| 90 | #define BI_BUS_PCI 1 |
| 91 | union { |
| 92 | unsigned int iobase; /* ISA */ |
| 93 | unsigned int tag; /* PCI, BIOS format */ |
| 94 | } addr; |
| 95 | }; |
| 96 | |
| 97 | struct btinfo_console { |
| 98 | struct btinfo_common common; |
| 99 | char devname[16]; |
| 100 | int addr; |
| 101 | int speed; |
| 102 | }; |
| 103 | |
| 104 | struct btinfo_symtab { |
| 105 | struct btinfo_common common; |
| 106 | int nsym; |
| 107 | int ssym; |
| 108 | int esym; |
| 109 | }; |
| 110 | |
| 111 | struct bi_memmap_entry { |
| 112 | uint64_t addr; /* beginning of block */ /* 8 */ |
| 113 | uint64_t size; /* size of block */ /* 8 */ |
| 114 | uint32_t type; /* type of block */ /* 4 */ |
| 115 | } __packed; /* == 20 */ |
| 116 | |
| 117 | #define BIM_Memory 1 /* available RAM usable by OS */ |
| 118 | #define BIM_Reserved 2 /* in use or reserved by the system */ |
| 119 | #define BIM_ACPI 3 /* ACPI Reclaim memory */ |
| 120 | #define BIM_NVS 4 /* ACPI NVS memory */ |
| 121 | |
| 122 | struct btinfo_memmap { |
| 123 | struct btinfo_common common; |
| 124 | int num; |
| 125 | struct bi_memmap_entry entry[1]; /* var len */ |
| 126 | }; |
| 127 | |
| 128 | #if HAVE_NBTOOL_CONFIG_H |
| 129 | #include <nbinclude/sys/bootblock.h> |
| 130 | #else |
| 131 | #include <sys/bootblock.h> |
| 132 | #endif /* HAVE_NBTOOL_CONFIG_H */ |
| 133 | |
| 134 | /* |
| 135 | * Structure describing disk info as seen by the BIOS. |
| 136 | */ |
| 137 | struct bi_biosgeom_entry { |
| 138 | int sec, head, cyl; /* geometry */ |
| 139 | uint64_t totsec; /* LBA sectors from ext int13 */ |
| 140 | int flags, dev; /* flags, BIOS device # */ |
| 141 | #define BI_GEOM_INVALID 0x000001 |
| 142 | #define BI_GEOM_EXTINT13 0x000002 |
| 143 | #ifdef BIOSDISK_EXTINFO_V3 |
| 144 | #define BI_GEOM_BADCKSUM 0x000004 /* v3.x checksum invalid */ |
| 145 | #define BI_GEOM_BUS_MASK 0x00ff00 /* connecting bus type */ |
| 146 | #define BI_GEOM_BUS_ISA 0x000100 |
| 147 | #define BI_GEOM_BUS_PCI 0x000200 |
| 148 | #define BI_GEOM_BUS_OTHER 0x00ff00 |
| 149 | #define BI_GEOM_IFACE_MASK 0xff0000 /* interface type */ |
| 150 | #define BI_GEOM_IFACE_ATA 0x010000 |
| 151 | #define BI_GEOM_IFACE_ATAPI 0x020000 |
| 152 | #define BI_GEOM_IFACE_SCSI 0x030000 |
| 153 | #define BI_GEOM_IFACE_USB 0x040000 |
| 154 | #define BI_GEOM_IFACE_1394 0x050000 /* Firewire */ |
| 155 | #define BI_GEOM_IFACE_FIBRE 0x060000 /* Fibre channel */ |
| 156 | #define BI_GEOM_IFACE_OTHER 0xff0000 |
| 157 | unsigned int cksum; /* MBR checksum */ |
| 158 | unsigned int interface_path; /* ISA iobase PCI bus/dev/fun */ |
| 159 | uint64_t device_path; |
| 160 | int res0; /* future expansion; 0 now */ |
| 161 | #else |
| 162 | unsigned int cksum; /* MBR checksum */ |
| 163 | int res0, res1, res2, res3; /* future expansion; 0 now */ |
| 164 | #endif |
| 165 | struct mbr_partition mbrparts[MBR_PART_COUNT]; /* MBR itself */ |
| 166 | } __packed; |
| 167 | |
| 168 | struct btinfo_biosgeom { |
| 169 | struct btinfo_common common; |
| 170 | int num; |
| 171 | struct bi_biosgeom_entry disk[1]; /* var len */ |
| 172 | }; |
| 173 | |
| 174 | struct bi_modulelist_entry { |
| 175 | char path[80]; |
| 176 | int type; |
| 177 | int len; |
| 178 | uint32_t base; |
| 179 | }; |
| 180 | #define BI_MODULE_NONE 0x00 |
| 181 | #define BI_MODULE_ELF 0x01 |
| 182 | #define BI_MODULE_IMAGE 0x02 |
| 183 | #define BI_MODULE_RND 0x03 |
| 184 | #define BI_MODULE_FS 0x04 |
| 185 | |
| 186 | struct btinfo_modulelist { |
| 187 | struct btinfo_common common; |
| 188 | int num; |
| 189 | uint32_t endpa; |
| 190 | /* bi_modulelist_entry list follows */ |
| 191 | }; |
| 192 | |
| 193 | struct btinfo_framebuffer { |
| 194 | struct btinfo_common common; |
| 195 | uint64_t physaddr; |
| 196 | uint32_t flags; |
| 197 | uint32_t width; |
| 198 | uint32_t height; |
| 199 | uint16_t stride; |
| 200 | uint8_t depth; |
| 201 | uint8_t rnum; |
| 202 | uint8_t gnum; |
| 203 | uint8_t bnum; |
| 204 | uint8_t rpos; |
| 205 | uint8_t gpos; |
| 206 | uint8_t bpos; |
| 207 | uint16_t vbemode; |
| 208 | uint8_t reserved[14]; |
| 209 | }; |
| 210 | |
| 211 | struct bi_userconfcommand { |
| 212 | char text[80]; |
| 213 | }; |
| 214 | |
| 215 | struct btinfo_userconfcommands { |
| 216 | struct btinfo_common common; |
| 217 | int num; |
| 218 | /* bi_userconfcommand list follows */ |
| 219 | }; |
| 220 | |
| 221 | /* EFI Information */ |
| 222 | struct btinfo_efi { |
| 223 | struct btinfo_common common; |
| 224 | paddr_t bi_systbl; /* Physical address of the EFI System Table */ |
| 225 | }; |
| 226 | |
| 227 | #endif /* _LOCORE */ |
| 228 | |
| 229 | #ifdef _KERNEL |
| 230 | |
| 231 | #define BOOTINFO_MAXSIZE 4096 |
| 232 | |
| 233 | #ifndef _LOCORE |
| 234 | /* |
| 235 | * Structure that holds the information passed by the boot loader. |
| 236 | */ |
| 237 | struct bootinfo { |
| 238 | /* Number of bootinfo_* entries in bi_data. */ |
| 239 | uint32_t bi_nentries; |
| 240 | |
| 241 | /* Raw data of bootinfo entries. The first one (if any) is |
| 242 | * found at bi_data[0] and can be casted to (bootinfo_common *). |
| 243 | * Once this is done, the following entry is found at 'len' |
| 244 | * offset as specified by the previous entry. */ |
| 245 | uint8_t bi_data[BOOTINFO_MAXSIZE - sizeof(uint32_t)]; |
| 246 | }; |
| 247 | |
| 248 | extern struct bootinfo bootinfo; |
| 249 | |
| 250 | void *lookup_bootinfo(int); |
| 251 | void aprint_bootinfo(void); |
| 252 | #endif /* _LOCORE */ |
| 253 | |
| 254 | #endif /* _KERNEL */ |
| 255 | |