root / prex-0.9.0 / include / sys / bootinfo.h @ 03e9c04a
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1 | 03e9c04a | Brad Neuman | /*
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2 | * Copyright (c) 2005-2007, Kohsuke Ohtani
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3 | * All rights reserved.
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4 | *
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5 | * Redistribution and use in source and binary forms, with or without
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6 | * modification, are permitted provided that the following conditions
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7 | * are met:
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8 | * 1. Redistributions of source code must retain the above copyright
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9 | * notice, this list of conditions and the following disclaimer.
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10 | * 2. Redistributions in binary form must reproduce the above copyright
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11 | * notice, this list of conditions and the following disclaimer in the
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12 | * documentation and/or other materials provided with the distribution.
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13 | * 3. Neither the name of the author nor the names of any co-contributors
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14 | * may be used to endorse or promote products derived from this software
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15 | * without specific prior written permission.
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16 | *
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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27 | * SUCH DAMAGE.
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28 | */
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29 | |||
30 | /*
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31 | * Boot information
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32 | *
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33 | * The boot information is stored by an OS loader, and
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34 | * it is refered by kernel later in boot time.
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35 | */
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36 | |||
37 | #ifndef _SYS_BOOTINFO_H
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38 | #define _SYS_BOOTINFO_H
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39 | |||
40 | #include <sys/types.h> |
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41 | |||
42 | #define MAXIMGNAME 16 |
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43 | |||
44 | /*
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45 | * Video information
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46 | */
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47 | struct vidinfo
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48 | { |
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49 | int pixel_x; /* screen pixels */ |
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50 | int pixel_y;
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51 | int text_x; /* text size, in characters */ |
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52 | int text_y;
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53 | }; |
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54 | |||
55 | /*
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56 | * Module information for kernel, driver, and boot tasks.
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57 | * An OS loader will build this structure regardless of its file format.
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58 | */
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59 | struct module
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60 | { |
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61 | char name[MAXIMGNAME]; /* name of image */ |
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62 | paddr_t phys; /* physical address */
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63 | size_t size; /* size of image */
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64 | vaddr_t entry; /* entry address */
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65 | vaddr_t text; /* text address */
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66 | vaddr_t data; /* data address */
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67 | size_t textsz; /* text size */
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68 | size_t datasz; /* data size */
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69 | size_t bsssz; /* bss size */
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70 | }; |
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71 | |||
72 | /*
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73 | * Physical memory
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74 | */
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75 | struct physmem
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76 | { |
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77 | paddr_t base; /* start address */
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78 | psize_t size; /* size in bytes */
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79 | int type; /* type */ |
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80 | }; |
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81 | |||
82 | /* memory types */
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83 | #define MT_USABLE 1 |
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84 | #define MT_MEMHOLE 2 |
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85 | #define MT_RESERVED 3 |
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86 | #define MT_BOOTDISK 4 |
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87 | |||
88 | #define NMEMS 8 /* max number of memory slots */ |
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89 | |||
90 | /*
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91 | * Boot information
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92 | */
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93 | struct bootinfo
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94 | { |
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95 | struct vidinfo video; /* video information */ |
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96 | struct physmem ram[NMEMS]; /* physical ram table */ |
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97 | int nr_rams; /* number of ram blocks */ |
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98 | struct physmem bootdisk; /* boot disk in memory */ |
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99 | int nr_tasks; /* number of boot tasks */ |
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100 | struct module kernel; /* kernel image */ |
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101 | struct module driver; /* driver image */ |
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102 | struct module tasks[1]; /* boot tasks image */ |
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103 | }; |
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104 | |||
105 | #define BOOTINFOSZ 1024 /* max size of boot information */ |
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106 | |||
107 | #endif /* !_SYS_BOOTINFO_H */ |