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| Rev | Author | Line No. | Line |
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| 3984 | svoboda | 1 | /* |
| 2 | * Copyright (c) 2009 Jiri Svoboda |
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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 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | /** @addtogroup ia32 |
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| 30 | * @{ |
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| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 35 | #include <main/main.h> |
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| 36 | #include <arch/boot/boot.h> |
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| 37 | #include <arch/boot/cboot.h> |
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| 38 | #include <arch/boot/memmap.h> |
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| 39 | #include <config.h> |
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| 40 | #include <memstr.h> |
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| 3987 | svoboda | 41 | #include <func.h> |
| 3984 | svoboda | 42 | |
| 43 | /* This is a symbol so the type is only dummy. Obtain the value using &. */ |
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| 44 | extern int _hardcoded_unmapped_size; |
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| 45 | |||
| 46 | /** C part of ia32 boot sequence. |
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| 47 | * @param signature Should contain the multiboot signature. |
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| 48 | * @param mi Pointer to the multiboot information structure. |
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| 49 | */ |
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| 50 | void ia32_cboot(uint32_t signature, const mb_info_t *mi) |
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| 51 | { |
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| 52 | uint32_t flags; |
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| 53 | mb_mod_t *mods; |
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| 54 | uint32_t i; |
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| 55 | |||
| 3985 | svoboda | 56 | if (signature == MULTIBOOT_LOADER_MAGIC) { |
| 57 | flags = mi->flags; |
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| 58 | } else { |
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| 59 | /* No multiboot info available. */ |
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| 60 | flags = 0; |
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| 61 | } |
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| 3984 | svoboda | 62 | |
| 63 | /* Copy module information. */ |
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| 64 | |||
| 65 | if ((flags & MBINFO_FLAGS_MODS) != 0) { |
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| 66 | init.cnt = mi->mods_count; |
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| 67 | mods = mi->mods_addr; |
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| 68 | |||
| 69 | for (i = 0; i < init.cnt; i++) { |
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| 70 | init.tasks[i].addr = mods[i].start + 0x80000000; |
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| 71 | init.tasks[i].size = mods[i].end - mods[i].start; |
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| 3987 | svoboda | 72 | |
| 73 | /* Copy command line, if available. */ |
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| 74 | if (mods[i].string) { |
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| 75 | strncpy(init.tasks[i].name, mods[i].string, |
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| 76 | CONFIG_TASK_NAME_BUFLEN - 1); |
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| 77 | init.tasks[i].name[CONFIG_TASK_NAME_BUFLEN - 1] |
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| 78 | = '\0'; |
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| 79 | } else { |
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| 80 | init.tasks[i].name[0] = '\0'; |
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| 81 | } |
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| 3984 | svoboda | 82 | } |
| 83 | } else { |
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| 84 | init.cnt = 0; |
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| 85 | } |
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| 86 | |||
| 87 | /* Copy memory map. */ |
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| 88 | |||
| 89 | int32_t mmap_length; |
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| 90 | mb_mmap_t *mme; |
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| 91 | uint32_t size; |
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| 92 | |||
| 93 | if ((flags & MBINFO_FLAGS_MMAP) != 0) { |
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| 94 | mmap_length = mi->mmap_length; |
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| 95 | mme = mi->mmap_addr; |
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| 96 | e820counter = 0; |
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| 97 | |||
| 98 | i = 0; |
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| 99 | while (mmap_length > 0) { |
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| 100 | e820table[i++] = mme->mm_info; |
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| 101 | |||
| 102 | /* Compute address of next structure. */ |
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| 103 | size = sizeof(mme->size) + mme->size; |
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| 104 | mme = ((void *) mme) + size; |
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| 105 | mmap_length -= size; |
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| 106 | } |
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| 107 | |||
| 108 | e820counter = i; |
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| 109 | } else { |
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| 110 | e820counter = 0; |
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| 111 | } |
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| 112 | |||
| 113 | #ifdef CONFIG_SMP |
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| 114 | /* Copy AP bootstrap routines below 1 MB. */ |
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| 115 | memcpy((void *) AP_BOOT_OFFSET, (void *) BOOT_OFFSET, |
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| 116 | (size_t) &_hardcoded_unmapped_size); |
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| 117 | #endif |
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| 118 | |||
| 119 | main_bsp(); |
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| 120 | } |
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| 121 | |||
| 122 | /** @} |
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| 123 | */ |