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| Rev 2116 | Rev 2141 | ||
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| Line 97... | Line 97... | ||
| 97 | * @param flags Address space area flags for the mapping. |
97 | * @param flags Address space area flags for the mapping. |
| 98 | * |
98 | * |
| 99 | * @return 0 on success, EPERM if the caller lacks capabilities to use this |
99 | * @return 0 on success, EPERM if the caller lacks capabilities to use this |
| 100 | * syscall, ENOENT if there is no task matching the specified ID or the |
100 | * syscall, ENOENT if there is no task matching the specified ID or the |
| 101 | * physical address space is not enabled for mapping and ENOMEM if there |
101 | * physical address space is not enabled for mapping and ENOMEM if there |
| 102 | * was a problem in creating address space area. ENOTSUP is returned when |
102 | * was a problem in creating address space area. |
| 103 | * an attempt to create an illegal address alias is detected. |
- | |
| 104 | */ |
103 | */ |
| 105 | static int ddi_physmem_map(uintptr_t pf, uintptr_t vp, count_t pages, int flags) |
104 | static int ddi_physmem_map(uintptr_t pf, uintptr_t vp, count_t pages, int flags) |
| 106 | { |
105 | { |
| 107 | ipl_t ipl; |
106 | ipl_t ipl; |
| 108 | cap_t caps; |
107 | cap_t caps; |
| Line 137... | Line 136... | ||
| 137 | */ |
136 | */ |
| 138 | spinlock_unlock(&parea_lock); |
137 | spinlock_unlock(&parea_lock); |
| 139 | interrupts_restore(ipl); |
138 | interrupts_restore(ipl); |
| 140 | return ENOENT; |
139 | return ENOENT; |
| 141 | } |
140 | } |
| 142 | - | ||
| 143 | #ifdef CONFIG_VIRT_IDX_DCACHE |
- | |
| 144 | if (PAGE_COLOR(parea->vbase) != PAGE_COLOR(vp)) { |
- | |
| 145 | /* |
- | |
| 146 | * Refuse to create an illegal address alias. |
- | |
| 147 | */ |
- | |
| 148 | spinlock_unlock(&parea_lock); |
- | |
| 149 | interrupts_restore(ipl); |
- | |
| 150 | return ENOTSUP; |
- | |
| 151 | } |
- | |
| 152 | #endif /* CONFIG_VIRT_IDX_DCACHE */ |
- | |
| 153 | - | ||
| 154 | spinlock_unlock(&parea_lock); |
141 | spinlock_unlock(&parea_lock); |
| 155 | 142 | ||
| 156 | spinlock_lock(&TASK->lock); |
143 | spinlock_lock(&TASK->lock); |
| 157 | 144 | ||
| 158 | if (!as_area_create(TASK->as, flags, pages * PAGE_SIZE, vp, AS_AREA_ATTR_NONE, |
145 | if (!as_area_create(TASK->as, flags, pages * PAGE_SIZE, vp, AS_AREA_ATTR_NONE, |