early_p4d
static p4d_t early_p4d[PTRS_PER_P4D] __initdata __aligned(PAGE_SIZE);
#define early_p4d ((p4d_t *)XIP_FIXUP(early_p4d))
return (uintptr_t)early_p4d;
create_p4d_mapping(early_p4d,
(uintptr_t)early_p4d : (uintptr_t)early_pud,
memset(early_p4d, 0, PAGE_SIZE);