/** task için sanal bellek oluşturur */
static int task_setup_vm(Task *t, PageDirInfo *parent_pgdir) {
ASSERT_int_disable();
int err;
uint32_t va;
Page *p;
memset(&t->pgdir, 0, sizeof(t->pgdir));
/* page directory yapisi icin bellek al */
if ((err = tmp_page_alloc_map(&p, &va, PTE_P | PTE_W)) < 0)
return err;
t->pgdir.pgdir_pa = p->addr();
t->pgdir.pgdir = (PageDirectory*)va2kaddr(va);
memset(t->pgdir.pgdir, 0, 0x1000);
t->pgdir.count_kernel++;
/* page table listesi icin bellek al */
if ((err = tmp_page_alloc_map(&p, &va, PTE_P | PTE_W)) < 0)
return err;
t->pgdir.pgtables = (PageTable**)va2kaddr(va);
memset(t->pgdir.pgtables, 0, 0x1000);
t->pgdir.count_kernel++;
/* Kernel adres uzayini dogrudan task adres uzayina bagla */
err = t->pgdir.link_pgtables(parent_pgdir, MMAP_KERNEL_BASE, MMAP_KERNEL_STACK_BASE);
ASSERT(err == 0);
return 0;
}
