L4_SLOT_DIRECT
if (i >= L4_SLOT_DIRECT && i < L4_SLOT_DIRECT + DIRECT_MAP_PML4_SLOTS)
pmap_direct_base = (VA_SIGN_NEG((L4_SLOT_DIRECT * NBPD_L4)));
#define L4_SLOT_EARLY (L4_SLOT_DIRECT - 1)
#define PDIR_SLOT_DIRECT L4_SLOT_DIRECT