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Fix the unsuitable use of pa2page in lab2

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ArchStacker 2015-05-04 19:30:29 +08:00
parent b233b49dcb
commit eec735afbf
1 changed files with 6 additions and 6 deletions
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12
labcodes/lab2/kern/mm/pmm.c
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@ -390,7 +390,7 @@ get_page(pde_t *pgdir, uintptr_t la, pte_t **ptep_store) {
*ptep_store = ptep;
}
if (ptep != NULL && *ptep & PTE_P) {
return pa2page(*ptep);
return pte2page(*ptep);
}
return NULL;
}
@ -492,7 +492,7 @@ check_pgdir(void) {
pte_t *ptep;
assert((ptep = get_pte(boot_pgdir, 0x0, 0)) != NULL);
assert(pa2page(*ptep) == p1);
assert(pte2page(*ptep) == p1);
assert(page_ref(p1) == 1);
ptep = &((pte_t *)KADDR(PDE_ADDR(boot_pgdir[0])))[1];
@ -510,7 +510,7 @@ check_pgdir(void) {
assert(page_ref(p1) == 2);
assert(page_ref(p2) == 0);
assert((ptep = get_pte(boot_pgdir, PGSIZE, 0)) != NULL);
assert(pa2page(*ptep) == p1);
assert(pte2page(*ptep) == p1);
assert((*ptep & PTE_U) == 0);
page_remove(boot_pgdir, 0x0);
@ -521,8 +521,8 @@ check_pgdir(void) {
assert(page_ref(p1) == 0);
assert(page_ref(p2) == 0);
assert(page_ref(pa2page(boot_pgdir[0])) == 1);
free_page(pa2page(boot_pgdir[0]));
assert(page_ref(pde2page(boot_pgdir[0])) == 1);
free_page(pde2page(boot_pgdir[0]));
boot_pgdir[0] = 0;
cprintf("check_pgdir() succeeded!\n");
@ -556,7 +556,7 @@ check_boot_pgdir(void) {
assert(strlen((const char *)0x100) == 0);
free_page(p);
free_page(pa2page(PDE_ADDR(boot_pgdir[0])));
free_page(pde2page(boot_pgdir[0]));
boot_pgdir[0] = 0;
cprintf("check_boot_pgdir() succeeded!\n");