sect_to_phys
#define section_phys(sent) (sect_to_phys(*(sent)) & SECT_MASK)
#define lpage_phys(pent) (sect_to_phys(*(pent)) & LPAGE_MASK)
#define spage_phys(pent) (sect_to_phys(*(pent)) & SPAGE_MASK)
#define lv2table_base(sent) (sect_to_phys(*(sent) & 0xFFFFFFC0))