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| Rev 1044 | Rev 1059 | ||
|---|---|---|---|
| Line 64... | Line 64... | ||
| 64 | dst_ptl0 = (pte_t *) PA2KA(PFN2ADDR(frame_alloc(ONE_FRAME, FRAME_KA | FRAME_PANIC))); |
64 | dst_ptl0 = (pte_t *) PA2KA(PFN2ADDR(frame_alloc(ONE_FRAME, FRAME_KA | FRAME_PANIC))); |
| 65 | 65 | ||
| 66 | if (flags & FLAG_AS_KERNEL) { |
66 | if (flags & FLAG_AS_KERNEL) { |
| 67 | memsetb((__address) dst_ptl0, PAGE_SIZE, 0); |
67 | memsetb((__address) dst_ptl0, PAGE_SIZE, 0); |
| 68 | } else { |
68 | } else { |
| - | 69 | __address src, dst; |
|
| - | 70 | ||
| 69 | /* |
71 | /* |
| 70 | * Copy the kernel address space portion to new PTL0. |
72 | * Copy the kernel address space portion to new PTL0. |
| 71 | * TODO: copy only kernel address space. |
- | |
| 72 | */ |
73 | */ |
| 73 | 74 | ||
| 74 | ipl = interrupts_disable(); |
75 | ipl = interrupts_disable(); |
| 75 | spinlock_lock(&AS_KERNEL->lock); |
76 | spinlock_lock(&AS_KERNEL->lock); |
| 76 | src_ptl0 = (pte_t *) PA2KA((__address) AS_KERNEL->page_table); |
77 | src_ptl0 = (pte_t *) PA2KA((__address) AS_KERNEL->page_table); |
| - | 78 | ||
| - | 79 | src = (__address) &src_ptl0[PTL0_INDEX(KERNEL_ADDRESS_SPACE_START)]; |
|
| - | 80 | dst = (__address) &dst_ptl0[PTL0_INDEX(KERNEL_ADDRESS_SPACE_START)]; |
|
| - | 81 | ||
| 77 | memcpy((void *) dst_ptl0,(void *) src_ptl0, PAGE_SIZE); |
82 | memsetb((__address) dst_ptl0, PAGE_SIZE, 0); |
| - | 83 | memcpy((void *) dst, (void *) src, PAGE_SIZE - (src - (__address) src_ptl0)); |
|
| 78 | spinlock_unlock(&AS_KERNEL->lock); |
84 | spinlock_unlock(&AS_KERNEL->lock); |
| 79 | interrupts_restore(ipl); |
85 | interrupts_restore(ipl); |
| 80 | } |
86 | } |
| 81 | 87 | ||
| 82 | return (pte_t *) KA2PA((__address) dst_ptl0); |
88 | return (pte_t *) KA2PA((__address) dst_ptl0); |