is_present_pte
TEST_ASSERT((*parent_pte == mmu->pgd) || is_present_pte(mmu, parent_pte),
if (!is_present_pte(mmu, pte)) {
TEST_ASSERT(!is_present_pte(mmu, pte),
if (!is_present_pte(mmu, pml4e))
if (!is_present_pte(mmu, pdpe))
if (!is_present_pte(mmu, pde))
if (!is_present_pte(mmu, pte))
TEST_ASSERT(is_present_pte(&vm->mmu, pte),