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| Rev 2089 | Rev 2106 | ||
|---|---|---|---|
| Line 70... | Line 70... | ||
| 70 | void pt_mapping_insert(as_t *as, uintptr_t page, uintptr_t frame, int flags) |
70 | void pt_mapping_insert(as_t *as, uintptr_t page, uintptr_t frame, int flags) |
| 71 | { |
71 | { |
| 72 | pte_t *ptl0, *ptl1, *ptl2, *ptl3; |
72 | pte_t *ptl0, *ptl1, *ptl2, *ptl3; |
| 73 | pte_t *newpt; |
73 | pte_t *newpt; |
| 74 | 74 | ||
| 75 | ptl0 = (pte_t *) PA2KA((uintptr_t) as->page_table); |
75 | ptl0 = (pte_t *) PA2KA((uintptr_t) as->genarch.page_table); |
| 76 | 76 | ||
| 77 | if (GET_PTL1_FLAGS(ptl0, PTL0_INDEX(page)) & PAGE_NOT_PRESENT) { |
77 | if (GET_PTL1_FLAGS(ptl0, PTL0_INDEX(page)) & PAGE_NOT_PRESENT) { |
| 78 | newpt = (pte_t *)frame_alloc(ONE_FRAME, FRAME_KA); |
78 | newpt = (pte_t *)frame_alloc(ONE_FRAME, FRAME_KA); |
| 79 | memsetb((uintptr_t)newpt, PAGE_SIZE, 0); |
79 | memsetb((uintptr_t)newpt, PAGE_SIZE, 0); |
| 80 | SET_PTL1_ADDRESS(ptl0, PTL0_INDEX(page), KA2PA(newpt)); |
80 | SET_PTL1_ADDRESS(ptl0, PTL0_INDEX(page), KA2PA(newpt)); |
| Line 126... | Line 126... | ||
| 126 | 126 | ||
| 127 | /* |
127 | /* |
| 128 | * First, remove the mapping, if it exists. |
128 | * First, remove the mapping, if it exists. |
| 129 | */ |
129 | */ |
| 130 | 130 | ||
| 131 | ptl0 = (pte_t *) PA2KA((uintptr_t) as->page_table); |
131 | ptl0 = (pte_t *) PA2KA((uintptr_t) as->genarch.page_table); |
| 132 | 132 | ||
| 133 | if (GET_PTL1_FLAGS(ptl0, PTL0_INDEX(page)) & PAGE_NOT_PRESENT) |
133 | if (GET_PTL1_FLAGS(ptl0, PTL0_INDEX(page)) & PAGE_NOT_PRESENT) |
| 134 | return; |
134 | return; |
| 135 | 135 | ||
| 136 | ptl1 = (pte_t *) PA2KA(GET_PTL1_ADDRESS(ptl0, PTL0_INDEX(page))); |
136 | ptl1 = (pte_t *) PA2KA(GET_PTL1_ADDRESS(ptl0, PTL0_INDEX(page))); |
| Line 242... | Line 242... | ||
| 242 | */ |
242 | */ |
| 243 | pte_t *pt_mapping_find(as_t *as, uintptr_t page) |
243 | pte_t *pt_mapping_find(as_t *as, uintptr_t page) |
| 244 | { |
244 | { |
| 245 | pte_t *ptl0, *ptl1, *ptl2, *ptl3; |
245 | pte_t *ptl0, *ptl1, *ptl2, *ptl3; |
| 246 | 246 | ||
| 247 | ptl0 = (pte_t *) PA2KA((uintptr_t) as->page_table); |
247 | ptl0 = (pte_t *) PA2KA((uintptr_t) as->genarch.page_table); |
| 248 | 248 | ||
| 249 | if (GET_PTL1_FLAGS(ptl0, PTL0_INDEX(page)) & PAGE_NOT_PRESENT) |
249 | if (GET_PTL1_FLAGS(ptl0, PTL0_INDEX(page)) & PAGE_NOT_PRESENT) |
| 250 | return NULL; |
250 | return NULL; |
| 251 | 251 | ||
| 252 | ptl1 = (pte_t *) PA2KA(GET_PTL1_ADDRESS(ptl0, PTL0_INDEX(page))); |
252 | ptl1 = (pte_t *) PA2KA(GET_PTL1_ADDRESS(ptl0, PTL0_INDEX(page))); |