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| 1 | /* |
1 | /* |
| 2 | * Copyright (c) 2009 Jiri Svoboda |
2 | * Copyright (c) 2009 Jiri Svoboda |
| 3 | * All rights reserved. |
3 | * All rights reserved. |
| 4 | * |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
7 | * are met: |
| 8 | * |
8 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
| 14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
| 16 | * |
16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | /** @addtogroup ia32 |
29 | /** @addtogroup ia32 |
| 30 | * @{ |
30 | * @{ |
| 31 | */ |
31 | */ |
| 32 | /** @file |
32 | /** @file |
| 33 | */ |
33 | */ |
| 34 | 34 | ||
| 35 | #include <main/main.h> |
35 | #include <main/main.h> |
| 36 | #include <arch/boot/boot.h> |
36 | #include <arch/boot/boot.h> |
| 37 | #include <arch/boot/cboot.h> |
37 | #include <arch/boot/cboot.h> |
| 38 | #include <arch/boot/memmap.h> |
38 | #include <arch/boot/memmap.h> |
| 39 | #include <config.h> |
39 | #include <config.h> |
| 40 | #include <memstr.h> |
40 | #include <memstr.h> |
| 41 | #include <string.h> |
41 | #include <string.h> |
| - | 42 | #include <macros.h> |
|
| 42 | 43 | ||
| 43 | /* This is a symbol so the type is only dummy. Obtain the value using &. */ |
44 | /* This is a symbol so the type is only dummy. Obtain the value using &. */ |
| 44 | extern int _hardcoded_unmapped_size; |
45 | extern int _hardcoded_unmapped_size; |
| 45 | 46 | ||
| - | 47 | /** Extract command name from the multiboot module command line. |
|
| - | 48 | * |
|
| - | 49 | * @param buf Destination buffer (will always null-terminate). |
|
| - | 50 | * @param n Size of destination buffer. |
|
| - | 51 | * @param cmd_line Input string (the command line). |
|
| - | 52 | */ |
|
| - | 53 | static void extract_command(char *buf, size_t n, const char *cmd_line) |
|
| - | 54 | { |
|
| - | 55 | const char *start, *end, *cp; |
|
| - | 56 | size_t max_len; |
|
| - | 57 | ||
| - | 58 | /* Find the first space. */ |
|
| - | 59 | end = strchr(cmd_line, ' '); |
|
| - | 60 | if (end == NULL) end = cmd_line + strlen(cmd_line); |
|
| - | 61 | ||
| - | 62 | /* |
|
| - | 63 | * Find last occurence of '/' before 'end'. If found, place start at |
|
| - | 64 | * next character. Otherwise, place start at beginning of buffer. |
|
| - | 65 | */ |
|
| - | 66 | cp = end; |
|
| - | 67 | start = buf; |
|
| - | 68 | while (cp != start) { |
|
| - | 69 | if (*cp == '/') { |
|
| - | 70 | start = cp + 1; |
|
| - | 71 | break; |
|
| - | 72 | } |
|
| - | 73 | --cp; |
|
| - | 74 | } |
|
| - | 75 | ||
| - | 76 | /* Copy the command and null-terminate the string. */ |
|
| - | 77 | max_len = min(n - 1, (size_t) (end - start)); |
|
| - | 78 | strncpy(buf, start, max_len + 1); |
|
| - | 79 | buf[max_len] = '\0'; |
|
| - | 80 | } |
|
| - | 81 | ||
| 46 | /** C part of ia32 boot sequence. |
82 | /** C part of ia32 boot sequence. |
| 47 | * @param signature Should contain the multiboot signature. |
83 | * @param signature Should contain the multiboot signature. |
| 48 | * @param mi Pointer to the multiboot information structure. |
84 | * @param mi Pointer to the multiboot information structure. |
| 49 | */ |
85 | */ |
| 50 | void ia32_cboot(uint32_t signature, const mb_info_t *mi) |
86 | void ia32_cboot(uint32_t signature, const mb_info_t *mi) |
| 51 | { |
87 | { |
| 52 | uint32_t flags; |
88 | uint32_t flags; |
| 53 | mb_mod_t *mods; |
89 | mb_mod_t *mods; |
| 54 | uint32_t i; |
90 | uint32_t i; |
| 55 | 91 | ||
| 56 | if (signature == MULTIBOOT_LOADER_MAGIC) { |
92 | if (signature == MULTIBOOT_LOADER_MAGIC) { |
| 57 | flags = mi->flags; |
93 | flags = mi->flags; |
| 58 | } else { |
94 | } else { |
| 59 | /* No multiboot info available. */ |
95 | /* No multiboot info available. */ |
| 60 | flags = 0; |
96 | flags = 0; |
| 61 | } |
97 | } |
| 62 | 98 | ||
| 63 | /* Copy module information. */ |
99 | /* Copy module information. */ |
| 64 | 100 | ||
| 65 | if ((flags & MBINFO_FLAGS_MODS) != 0) { |
101 | if ((flags & MBINFO_FLAGS_MODS) != 0) { |
| 66 | init.cnt = mi->mods_count; |
102 | init.cnt = mi->mods_count; |
| 67 | mods = mi->mods_addr; |
103 | mods = mi->mods_addr; |
| 68 | 104 | ||
| 69 | for (i = 0; i < init.cnt; i++) { |
105 | for (i = 0; i < init.cnt; i++) { |
| 70 | init.tasks[i].addr = mods[i].start + 0x80000000; |
106 | init.tasks[i].addr = mods[i].start + 0x80000000; |
| 71 | init.tasks[i].size = mods[i].end - mods[i].start; |
107 | init.tasks[i].size = mods[i].end - mods[i].start; |
| 72 | 108 | ||
| 73 | /* Copy command line, if available. */ |
109 | /* Copy command line, if available. */ |
| 74 | if (mods[i].string) { |
110 | if (mods[i].string) { |
| 75 | strncpy(init.tasks[i].name, mods[i].string, |
111 | extract_command(init.tasks[i].name, |
| 76 | CONFIG_TASK_NAME_BUFLEN - 1); |
112 | CONFIG_TASK_NAME_BUFLEN, |
| 77 | init.tasks[i].name[CONFIG_TASK_NAME_BUFLEN - 1] |
- | |
| 78 | = '\0'; |
113 | mods[i].string); |
| 79 | } else { |
114 | } else { |
| 80 | init.tasks[i].name[0] = '\0'; |
115 | init.tasks[i].name[0] = '\0'; |
| 81 | } |
116 | } |
| 82 | } |
117 | } |
| 83 | } else { |
118 | } else { |
| 84 | init.cnt = 0; |
119 | init.cnt = 0; |
| 85 | } |
120 | } |
| 86 | 121 | ||
| 87 | /* Copy memory map. */ |
122 | /* Copy memory map. */ |
| 88 | 123 | ||
| 89 | int32_t mmap_length; |
124 | int32_t mmap_length; |
| 90 | mb_mmap_t *mme; |
125 | mb_mmap_t *mme; |
| 91 | uint32_t size; |
126 | uint32_t size; |
| 92 | 127 | ||
| 93 | if ((flags & MBINFO_FLAGS_MMAP) != 0) { |
128 | if ((flags & MBINFO_FLAGS_MMAP) != 0) { |
| 94 | mmap_length = mi->mmap_length; |
129 | mmap_length = mi->mmap_length; |
| 95 | mme = mi->mmap_addr; |
130 | mme = mi->mmap_addr; |
| 96 | e820counter = 0; |
131 | e820counter = 0; |
| 97 | 132 | ||
| 98 | i = 0; |
133 | i = 0; |
| 99 | while (mmap_length > 0) { |
134 | while (mmap_length > 0) { |
| 100 | e820table[i++] = mme->mm_info; |
135 | e820table[i++] = mme->mm_info; |
| 101 | 136 | ||
| 102 | /* Compute address of next structure. */ |
137 | /* Compute address of next structure. */ |
| 103 | size = sizeof(mme->size) + mme->size; |
138 | size = sizeof(mme->size) + mme->size; |
| 104 | mme = ((void *) mme) + size; |
139 | mme = ((void *) mme) + size; |
| 105 | mmap_length -= size; |
140 | mmap_length -= size; |
| 106 | } |
141 | } |
| 107 | 142 | ||
| 108 | e820counter = i; |
143 | e820counter = i; |
| 109 | } else { |
144 | } else { |
| 110 | e820counter = 0; |
145 | e820counter = 0; |
| 111 | } |
146 | } |
| 112 | 147 | ||
| 113 | #ifdef CONFIG_SMP |
148 | #ifdef CONFIG_SMP |
| 114 | /* Copy AP bootstrap routines below 1 MB. */ |
149 | /* Copy AP bootstrap routines below 1 MB. */ |
| 115 | memcpy((void *) AP_BOOT_OFFSET, (void *) BOOT_OFFSET, |
150 | memcpy((void *) AP_BOOT_OFFSET, (void *) BOOT_OFFSET, |
| 116 | (size_t) &_hardcoded_unmapped_size); |
151 | (size_t) &_hardcoded_unmapped_size); |
| 117 | #endif |
152 | #endif |
| 118 | 153 | ||
| 119 | main_bsp(); |
154 | main_bsp(); |
| 120 | } |
155 | } |
| 121 | 156 | ||
| 122 | /** @} |
157 | /** @} |
| 123 | */ |
158 | */ |
| 124 | 159 | ||