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Compare Revisions

• This comparison shows the changes necessary to convert path

  → /trunk/kernel/arch/ia32/src/mm/page.c @ 2221

  → /trunk/kernel/arch/ia32/src/mm/page.c @ 2222

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 2221 → Rev 2222

/trunk/kernel/arch/ia32/src/mm/page.c
61,7 → 61,7
* PA2KA(identity) mapping for all frames until last_frame.
*/
for (cur = 0; cur < last_frame; cur += FRAME_SIZE) {
flags = PAGE_CACHEABLE;
flags = PAGE_CACHEABLE | PAGE_WRITE;
if ((PA2KA(cur) >= config.base) && (PA2KA(cur) < config.base + config.kernel_size))
flags |= PAGE_GLOBAL;
page_mapping_insert(AS_KERNEL, PA2KA(cur), cur, flags);
69,10 → 69,8
exc_register(14, "page_fault", (iroutine) page_fault);
write_cr3((uintptr_t) AS_KERNEL->genarch.page_table);
}
else {
} else
write_cr3((uintptr_t) AS_KERNEL->genarch.page_table);
}
paging_on();
}
86,7 → 84,7
uintptr_t virtaddr = PA2KA(last_frame);
pfn_t i;
for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++)
page_mapping_insert(AS_KERNEL, virtaddr + PFN2ADDR(i), physaddr + PFN2ADDR(i), PAGE_NOT_CACHEABLE);
page_mapping_insert(AS_KERNEL, virtaddr + PFN2ADDR(i), physaddr + PFN2ADDR(i), PAGE_NOT_CACHEABLE | PAGE_WRITE);
last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE);
95,12 → 93,12
void page_fault(int n, istate_t *istate)
{
uintptr_t page;
uintptr_t page;
pf_access_t access;
page = read_cr2();
page = read_cr2();
if (istate->error_word & PFERR_CODE_RSVD)
if (istate->error_word & PFERR_CODE_RSVD)
panic("Reserved bit set in page directory.\n");
if (istate->error_word & PFERR_CODE_RW)
107,14 → 105,14
access = PF_ACCESS_WRITE;
else
access = PF_ACCESS_READ;
if (as_page_fault(page, access, istate) == AS_PF_FAULT) {
if (as_page_fault(page, access, istate) == AS_PF_FAULT) {
fault_if_from_uspace(istate, "Page fault: %#x", page);
decode_istate(istate);
printf("page fault address: %#x\n", page);
panic("page fault\n");
}
decode_istate(istate);
printf("page fault address: %#x\n", page);
panic("page fault\n");
}
}
/** @}