- note_page_update_state(st, addr, level, val, page_size);
- }
-}
-
-static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start)
-{
- pte_t *pte = pte_offset_kernel(pmd, 0);
- unsigned long addr;
- unsigned int i;
-
- for (i = 0; i < PTRS_PER_PTE; i++, pte++) {
- addr = start + i * PAGE_SIZE;
- note_page(st, addr, 4, pte_val(*pte), PAGE_SIZE);
-
- }
-}
-
-static void walk_hugepd(struct pg_state *st, hugepd_t *phpd, unsigned long start,
- int pdshift, int level)
-{
-#ifdef CONFIG_ARCH_HAS_HUGEPD
- unsigned int i;
- int shift = hugepd_shift(*phpd);
- int ptrs_per_hpd = pdshift - shift > 0 ? 1 << (pdshift - shift) : 1;
-
- if (start & ((1 << shift) - 1))
- return;
-
- for (i = 0; i < ptrs_per_hpd; i++) {
- unsigned long addr = start + (i << shift);
- pte_t *pte = hugepte_offset(*phpd, addr, pdshift);
-
- note_page(st, addr, level + 1, pte_val(*pte), 1 << shift);
- }
-#endif
-}
-
-static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start)
-{
- pmd_t *pmd = pmd_offset(pud, 0);
- unsigned long addr;
- unsigned int i;
-
- for (i = 0; i < PTRS_PER_PMD; i++, pmd++) {
- addr = start + i * PMD_SIZE;
- if (!pmd_none(*pmd) && !pmd_is_leaf(*pmd))
- /* pmd exists */
- walk_pte(st, pmd, addr);
- else
- note_page(st, addr, 3, pmd_val(*pmd), PMD_SIZE);
- }
-}
-
-static void walk_pud(struct pg_state *st, p4d_t *p4d, unsigned long start)
-{
- pud_t *pud = pud_offset(p4d, 0);
- unsigned long addr;
- unsigned int i;
-
- for (i = 0; i < PTRS_PER_PUD; i++, pud++) {
- addr = start + i * PUD_SIZE;
- if (!pud_none(*pud) && !pud_is_leaf(*pud))
- /* pud exists */
- walk_pmd(st, pud, addr);
- else
- note_page(st, addr, 2, pud_val(*pud), PUD_SIZE);
- }
-}
-
-static void walk_pagetables(struct pg_state *st)
-{
- unsigned int i;
- unsigned long addr = st->start_address & PGDIR_MASK;
- pgd_t *pgd = pgd_offset_k(addr);
-
- /*
- * Traverse the linux pagetable structure and dump pages that are in
- * the hash pagetable.
- */
- for (i = pgd_index(addr); i < PTRS_PER_PGD; i++, pgd++, addr += PGDIR_SIZE) {
- p4d_t *p4d = p4d_offset(pgd, 0);
-
- if (p4d_none(*p4d) || p4d_is_leaf(*p4d))
- note_page(st, addr, 1, p4d_val(*p4d), PGDIR_SIZE);
- else if (is_hugepd(__hugepd(p4d_val(*p4d))))
- walk_hugepd(st, (hugepd_t *)p4d, addr, PGDIR_SHIFT, 1);
- else
- /* p4d exists */
- walk_pud(st, p4d, addr);