| 65,42 → 65,62 |
|---|
| * - PLT3 has 1024 entries (10 bits) |
| */ |
| |
| /* Number of entries in each level. */ |
| #define PTL0_ENTRIES_ARCH 1024 |
| #define PTL1_ENTRIES_ARCH 0 |
| #define PTL2_ENTRIES_ARCH 0 |
| #define PTL3_ENTRIES_ARCH 1024 |
| |
| /* Sizes of page tables in each level. */ |
| #define PTL0_SIZE_ARCH ONE_FRAME |
| #define PTL1_SIZE_ARCH 0 |
| #define PTL2_SIZE_ARCH 0 |
| #define PTL3_SIZE_ARCH ONE_FRAME |
| |
| /* Macros calculating indices into page tables in each level. */ |
| #define PTL0_INDEX_ARCH(vaddr) (((vaddr) >> 22) & 0x3ff) |
| #define PTL1_INDEX_ARCH(vaddr) 0 |
| #define PTL2_INDEX_ARCH(vaddr) 0 |
| #define PTL3_INDEX_ARCH(vaddr) (((vaddr) >> 12) & 0x3ff) |
| |
| #define GET_PTL1_ADDRESS_ARCH(ptl0, i) (((pte_t *) (ptl0))[(i)].pfn << 12) |
| #define GET_PTL2_ADDRESS_ARCH(ptl1, i) (ptl1) |
| #define GET_PTL3_ADDRESS_ARCH(ptl2, i) (ptl2) |
| #define GET_FRAME_ADDRESS_ARCH(ptl3, i) (((pte_t *) (ptl3))[(i)].pfn << 12) |
| /* Get PTE address accessors for each level. */ |
| #define GET_PTL1_ADDRESS_ARCH(ptl0, i) \ |
| (((pte_t *) (ptl0))[(i)].pfn << 12) |
| #define GET_PTL2_ADDRESS_ARCH(ptl1, i) \ |
| (ptl1) |
| #define GET_PTL3_ADDRESS_ARCH(ptl2, i) \ |
| (ptl2) |
| #define GET_FRAME_ADDRESS_ARCH(ptl3, i) \ |
| (((pte_t *) (ptl3))[(i)].pfn << 12) |
| |
| /* Set PTE address accessors for each level. */ |
| #define SET_PTL0_ADDRESS_ARCH(ptl0) |
| #define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) (((pte_t *) (ptl0))[(i)].pfn = (a) >> 12) |
| #define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) \ |
| (((pte_t *) (ptl0))[(i)].pfn = (a) >> 12) |
| #define SET_PTL2_ADDRESS_ARCH(ptl1, i, a) |
| #define SET_PTL3_ADDRESS_ARCH(ptl2, i, a) |
| #define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) (((pte_t *) (ptl3))[(i)].pfn = (a) >> 12) |
| #define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) \ |
| (((pte_t *) (ptl3))[(i)].pfn = (a) >> 12) |
| |
| #define GET_PTL1_FLAGS_ARCH(ptl0, i) get_pt_flags((pte_t *) (ptl0), (index_t) (i)) |
| #define GET_PTL2_FLAGS_ARCH(ptl1, i) PAGE_PRESENT |
| #define GET_PTL3_FLAGS_ARCH(ptl2, i) PAGE_PRESENT |
| #define GET_FRAME_FLAGS_ARCH(ptl3, i) get_pt_flags((pte_t *) (ptl3), (index_t) (i)) |
| /* Get PTE flags accessors for each level. */ |
| #define GET_PTL1_FLAGS_ARCH(ptl0, i) \ |
| get_pt_flags((pte_t *) (ptl0), (index_t) (i)) |
| #define GET_PTL2_FLAGS_ARCH(ptl1, i) \ |
| PAGE_PRESENT |
| #define GET_PTL3_FLAGS_ARCH(ptl2, i) \ |
| PAGE_PRESENT |
| #define GET_FRAME_FLAGS_ARCH(ptl3, i) \ |
| get_pt_flags((pte_t *) (ptl3), (index_t) (i)) |
| |
| #define SET_PTL1_FLAGS_ARCH(ptl0, i, x) set_pt_flags((pte_t *) (ptl0), (index_t) (i), (x)) |
| /* Set PTE flags accessors for each level. */ |
| #define SET_PTL1_FLAGS_ARCH(ptl0, i, x) \ |
| set_pt_flags((pte_t *) (ptl0), (index_t) (i), (x)) |
| #define SET_PTL2_FLAGS_ARCH(ptl1, i, x) |
| #define SET_PTL3_FLAGS_ARCH(ptl2, i, x) |
| #define SET_FRAME_FLAGS_ARCH(ptl3, i, x) set_pt_flags((pte_t *) (ptl3), (index_t) (i), (x)) |
| #define SET_FRAME_FLAGS_ARCH(ptl3, i, x) \ |
| set_pt_flags((pte_t *) (ptl3), (index_t) (i), (x)) |
| |
| /* Macros for querying the last-level PTEs. */ |
| #define PTE_VALID_ARCH(pte) (*((uint32_t *) (pte)) != 0) |
| #define PTE_PRESENT_ARCH(pte) ((pte)->p != 0) |
| #define PTE_GET_FRAME_ARCH(pte) ((uintptr_t) ((pte)->pfn << 12)) |
| 116,15 → 136,13 |
|---|
| { |
| pte_t *p = &pt[i]; |
| |
| return ( |
| (1 << PAGE_CACHEABLE_SHIFT) | |
| ((!p->p) << PAGE_PRESENT_SHIFT) | |
| (1 << PAGE_USER_SHIFT) | |
| (1 << PAGE_READ_SHIFT) | |
| (1 << PAGE_WRITE_SHIFT) | |
| (1 << PAGE_EXEC_SHIFT) | |
| (p->g << PAGE_GLOBAL_SHIFT) |
| ); |
| return ((1 << PAGE_CACHEABLE_SHIFT) | |
| ((!p->p) << PAGE_PRESENT_SHIFT) | |
| (1 << PAGE_USER_SHIFT) | |
| (1 << PAGE_READ_SHIFT) | |
| (1 << PAGE_WRITE_SHIFT) | |
| (1 << PAGE_EXEC_SHIFT) | |
| (p->g << PAGE_GLOBAL_SHIFT)); |
| } |
| |
| static inline void set_pt_flags(pte_t *pt, index_t i, int flags) |