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Rev 3233 | Rev 3830 | ||
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Line 118... | Line 118... | ||
118 | #define SET_FRAME_FLAGS_ARCH(ptl3, i, x) \ |
118 | #define SET_FRAME_FLAGS_ARCH(ptl3, i, x) \ |
119 | set_pt_flags((pte_t *) (ptl3), (index_t) (i), (x)) |
119 | set_pt_flags((pte_t *) (ptl3), (index_t) (i), (x)) |
120 | 120 | ||
121 | /* Macros for querying the last-level PTEs. */ |
121 | /* Macros for querying the last-level PTEs. */ |
122 | #define PTE_VALID_ARCH(pte) (*((uint32_t *) (pte)) != 0) |
122 | #define PTE_VALID_ARCH(pte) (*((uint32_t *) (pte)) != 0) |
123 | #define PTE_PRESENT_ARCH(pte) ((pte)->p != 0) |
123 | #define PTE_PRESENT_ARCH(pte) ((pte)->present != 0) |
124 | #define PTE_GET_FRAME_ARCH(pte) ((pte)->pfn << 12) |
124 | #define PTE_GET_FRAME_ARCH(pte) ((pte)->pfn << 12) |
125 | #define PTE_WRITABLE_ARCH(pte) 1 |
125 | #define PTE_WRITABLE_ARCH(pte) 1 |
126 | #define PTE_EXECUTABLE_ARCH(pte) 1 |
126 | #define PTE_EXECUTABLE_ARCH(pte) 1 |
127 | 127 | ||
128 | #ifndef __ASM__ |
128 | #ifndef __ASM__ |
Line 132... | Line 132... | ||
132 | 132 | ||
133 | static inline int get_pt_flags(pte_t *pt, index_t i) |
133 | static inline int get_pt_flags(pte_t *pt, index_t i) |
134 | { |
134 | { |
135 | pte_t *p = &pt[i]; |
135 | pte_t *p = &pt[i]; |
136 | 136 | ||
137 | return ((1 << PAGE_CACHEABLE_SHIFT) | |
137 | return (((!p->page_cache_disable) << PAGE_CACHEABLE_SHIFT) | |
138 | ((!p->p) << PAGE_PRESENT_SHIFT) | |
138 | ((!p->present) << PAGE_PRESENT_SHIFT) | |
139 | (1 << PAGE_USER_SHIFT) | |
139 | (1 << PAGE_USER_SHIFT) | |
140 | (1 << PAGE_READ_SHIFT) | |
140 | (1 << PAGE_READ_SHIFT) | |
141 | (1 << PAGE_WRITE_SHIFT) | |
141 | (1 << PAGE_WRITE_SHIFT) | |
142 | (1 << PAGE_EXEC_SHIFT) | |
142 | (1 << PAGE_EXEC_SHIFT) | |
143 | (p->g << PAGE_GLOBAL_SHIFT)); |
143 | (p->global << PAGE_GLOBAL_SHIFT)); |
144 | } |
144 | } |
145 | 145 | ||
146 | static inline void set_pt_flags(pte_t *pt, index_t i, int flags) |
146 | static inline void set_pt_flags(pte_t *pt, index_t i, int flags) |
147 | { |
147 | { |
148 | pte_t *p = &pt[i]; |
148 | pte_t *p = &pt[i]; |
149 | 149 | ||
- | 150 | p->page_cache_disable = !(flags & PAGE_CACHEABLE); |
|
150 | p->p = !(flags & PAGE_NOT_PRESENT); |
151 | p->present = !(flags & PAGE_NOT_PRESENT); |
151 | p->g = (flags & PAGE_GLOBAL) != 0; |
152 | p->global = (flags & PAGE_GLOBAL) != 0; |
152 | p->valid = 1; |
153 | p->valid = 1; |
153 | } |
154 | } |
154 | 155 | ||
155 | extern void page_arch_init(void); |
156 | extern void page_arch_init(void); |
156 | 157 |