_REGION1_SHIFT
(_AC(1, UL) << (_REGION1_SHIFT - KASAN_SHADOW_SCALE_SHIFT))
#define _REGION1_INDEX (0x7ffUL << _REGION1_SHIFT)
#define _REGION1_SIZE (1UL << _REGION1_SHIFT)
#define PGDIR_SHIFT _REGION1_SHIFT
table += (address & _REGION1_INDEX) >> _REGION1_SHIFT;
rfte += (addr & _REGION1_INDEX) >> _REGION1_SHIFT;