| 61,15 → 61,15 |
|---|
| #define PTL2_ENTRIES_ARCH 0 |
| #define PTL3_ENTRIES_ARCH 1024 |
| |
| #define PTL0_INDEX_ARCH(vaddr) (((vaddr)>>22)&0x3ff) |
| #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 PTL3_INDEX_ARCH(vaddr) (((vaddr) >> 12) & 0x3ff) |
| |
| #define GET_PTL1_ADDRESS_ARCH(ptl0, i) ((pte_t *)((((pte_t *)(ptl0))[(i)].frame_address)<<12)) |
| #define GET_PTL1_ADDRESS_ARCH(ptl0, i) ((pte_t *)((((pte_t *)(ptl0))[(i)].frame_address) << 12)) |
| #define GET_PTL2_ADDRESS_ARCH(ptl1, i) (ptl1) |
| #define GET_PTL3_ADDRESS_ARCH(ptl2, i) (ptl2) |
| #define GET_FRAME_ADDRESS_ARCH(ptl3, i) ((uintptr_t)((((pte_t *)(ptl3))[(i)].frame_address)<<12)) |
| #define GET_FRAME_ADDRESS_ARCH(ptl3, i) ((uintptr_t)((((pte_t *)(ptl3))[(i)].frame_address) << 12)) |
| |
| #define SET_PTL0_ADDRESS_ARCH(ptl0) (write_cr3((uintptr_t) (ptl0))) |
| #define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) (((pte_t *)(ptl0))[(i)].frame_address = (a)>>12) |
| 89,59 → 89,41 |
|---|
| |
| #define PTE_VALID_ARCH(p) (*((uint32_t *) (p)) != 0) |
| #define PTE_PRESENT_ARCH(p) ((p)->present != 0) |
| #define PTE_GET_FRAME_ARCH(p) ((p)->frame_address<<FRAME_WIDTH) |
| #define PTE_GET_FRAME_ARCH(p) ((p)->frame_address << FRAME_WIDTH) |
| #define PTE_WRITABLE_ARCH(p) ((p)->writeable != 0) |
| #define PTE_EXECUTABLE_ARCH(p) 1 |
| |
| #ifndef __ASM__ |
| |
| #include <mm/page.h> |
| #include <arch/types.h> |
| #include <arch/mm/frame.h> |
| #include <typedefs.h> |
| #include <mm/mm.h> |
| #include <arch/interrupt.h> |
| |
| /* Page fault error codes. */ |
| |
| /** When bit on this position is 0, the page fault was caused by a not-present page. */ |
| #define PFERR_CODE_P (1<<0) |
| #define PFERR_CODE_P (1 << 0) |
| |
| /** When bit on this position is 1, the page fault was caused by a write. */ |
| #define PFERR_CODE_RW (1<<1) |
| #define PFERR_CODE_RW (1 << 1) |
| |
| /** When bit on this position is 1, the page fault was caused in user mode. */ |
| #define PFERR_CODE_US (1<<2) |
| #define PFERR_CODE_US (1 << 2) |
| |
| /** When bit on this position is 1, a reserved bit was set in page directory. */ |
| #define PFERR_CODE_RSVD (1<<3) |
| #define PFERR_CODE_RSVD (1 << 3) |
| |
| /** Page Table Entry. */ |
| struct page_specifier { |
| unsigned present : 1; |
| unsigned writeable : 1; |
| unsigned uaccessible : 1; |
| unsigned page_write_through : 1; |
| unsigned page_cache_disable : 1; |
| unsigned accessed : 1; |
| unsigned dirty : 1; |
| unsigned pat : 1; |
| unsigned global : 1; |
| unsigned soft_valid : 1; /**< Valid content even if the present bit is not set. */ |
| unsigned avl : 2; |
| unsigned frame_address : 20; |
| } __attribute__ ((packed)); |
| |
| static inline int get_pt_flags(pte_t *pt, index_t i) |
| { |
| pte_t *p = &pt[i]; |
| |
| return ( |
| (!p->page_cache_disable)<<PAGE_CACHEABLE_SHIFT | |
| (!p->present)<<PAGE_PRESENT_SHIFT | |
| p->uaccessible<<PAGE_USER_SHIFT | |
| (!p->page_cache_disable) << PAGE_CACHEABLE_SHIFT | |
| (!p->present) << PAGE_PRESENT_SHIFT | |
| p->uaccessible << PAGE_USER_SHIFT | |
| 1<<PAGE_READ_SHIFT | |
| p->writeable<<PAGE_WRITE_SHIFT | |
| p->writeable << PAGE_WRITE_SHIFT | |
| 1<<PAGE_EXEC_SHIFT | |
| p->global<<PAGE_GLOBAL_SHIFT |
| p->global << PAGE_GLOBAL_SHIFT |
| ); |
| } |
| |