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| Rev 2222 | Rev 2697 | ||
|---|---|---|---|
| Line 85... | Line 85... | ||
| 85 | int i; |
85 | int i; |
| 86 | int identity_flags = PAGE_CACHEABLE | PAGE_EXEC | PAGE_GLOBAL | PAGE_WRITE; |
86 | int identity_flags = PAGE_CACHEABLE | PAGE_EXEC | PAGE_GLOBAL | PAGE_WRITE; |
| 87 | 87 | ||
| 88 | if (config.cpu_active == 1) { |
88 | if (config.cpu_active == 1) { |
| 89 | page_mapping_operations = &pt_mapping_operations; |
89 | page_mapping_operations = &pt_mapping_operations; |
| 90 | 90 | ||
| 91 | /* |
91 | /* |
| 92 | * PA2KA(identity) mapping for all frames. |
92 | * PA2KA(identity) mapping for all frames. |
| 93 | */ |
93 | */ |
| 94 | for (cur = 0; cur < last_frame; cur += FRAME_SIZE) { |
94 | for (cur = 0; cur < last_frame; cur += FRAME_SIZE) { |
| 95 | /* Standard identity mapping */ |
95 | /* Standard identity mapping */ |
| 96 | page_mapping_insert(AS_KERNEL, PA2KA(cur), cur, identity_flags); |
96 | page_mapping_insert(AS_KERNEL, PA2KA(cur), cur, identity_flags); |
| 97 | } |
97 | } |
| - | 98 | ||
| 98 | /* Upper kernel mapping |
99 | /* Upper kernel mapping |
| 99 | * - from zero to top of kernel (include bottom addresses |
100 | * - from zero to top of kernel (include bottom addresses |
| 100 | * because some are needed for init ) |
101 | * because some are needed for init) |
| 101 | */ |
102 | */ |
| 102 | for (cur = PA2KA_CODE(0); cur < config.base + config.kernel_size; cur += FRAME_SIZE) |
103 | for (cur = PA2KA_CODE(0); cur < config.base + config.kernel_size; cur += FRAME_SIZE) |
| 103 | page_mapping_insert(AS_KERNEL, cur, KA2PA(cur), identity_flags); |
104 | page_mapping_insert(AS_KERNEL, cur, KA2PA(cur), identity_flags); |
| 104 | 105 | ||
| 105 | for (cur = config.stack_base; cur < config.stack_base + config.stack_size; cur += FRAME_SIZE) |
106 | for (cur = config.stack_base; cur < config.stack_base + config.stack_size; cur += FRAME_SIZE) |