sys/arch/x86/include/bootinfo.h

   1 /*      $NetBSD: bootinfo.h,v 1.19 2011/11/28 07:56:54 tls 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
  44 struct btinfo_common {
  45         int len;
  46         int type;
  47 };
  48
  49 struct btinfo_bootpath {
  50         struct btinfo_common common;
  51         char bootpath[80];
  52 };
  53
  54 struct btinfo_rootdevice {
  55         struct btinfo_common common;
  56         char devname[16];
  57 };
  58
  59 struct 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
  70 struct 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
  80 struct 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
  92 struct btinfo_console {
  93         struct btinfo_common common;
  94         char devname[16];
  95         int addr;
  96         int speed;
  97 };
  98
  99 struct btinfo_symtab {
 100         struct btinfo_common common;
 101         int nsym;
 102         int ssym;
 103         int esym;
 104 };
 105
 106 struct 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
 117 struct 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  */
 132 struct 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
 163 struct btinfo_biosgeom {
 164         struct btinfo_common common;
 165         int num;
 166         struct bi_biosgeom_entry disk[1]; /* var len */
 167 };
 168
 169 struct 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
 180 struct btinfo_modulelist {
 181         struct btinfo_common common;
 182         int num;
 183         uint32_t endpa;
 184         /* bi_modulelist_entry list follows */
 185 };
 186
 187 struct 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
 205 struct bi_userconfcommand {
 206         char text[80];
 207 };
 208
 209 struct 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  */
 225 struct 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
 236 extern struct bootinfo bootinfo;
 237
 238 void *lookup_bootinfo(int);
 239 #endif /* _LOCORE */
 240
 241 #endif /* _KERNEL */