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copy also the entries of the pgt container

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This commit is contained in:
Stefan Lankes 2011-03-07 20:25:52 +01:00
parent 6613b13c1c
commit fc407a3eda
1 changed files with 9 additions and 3 deletions
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12
arch/x86/mm/page.c
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@ -163,8 +163,10 @@ int create_pgd(task_t* task, int copy)
continue;
phyaddr = copy_page_table(task, i, (page_table_t*) ((KERNEL_SPACE - 1024*PAGE_SIZE + i*PAGE_SIZE) & 0xFFFFF000), &counter);
if (phyaddr)
if (phyaddr) {
pgd->entries[i] = (phyaddr & 0xFFFFF000) | (curr_task->pgd->entries[i] & 0xFFF);
pgt->entries[i] = (phyaddr & 0xFFFFF000) | KERN_PAGE;
}
}
spinlock_unlock(&curr_task->pgd_lock);
@ -607,9 +609,13 @@ int arch_paging_init(void)
for(i=0; i<KERNEL_SPACE/(1024*PAGE_SIZE)-1; i++) {
size_t phyaddr = get_page();
if (!phyaddr)
continue;
if (!phyaddr) {
kputs("arch_paging_init: Not enough memory!\n");
return -ENOMEM;
}
memset((void*) phyaddr, 0, PAGE_SIZE);
per_core(current_task)->pgd->entries[i] = (phyaddr & 0xFFFFF000)|KERN_TABLE;
pgt->entries[i] = (phyaddr & 0xFFFFF000)|KERN_PAGE;
}