ID_AA64MMFR2_AT_SHIFT
#define ID_AA64MMFR2_AT_MASK (UL(0xf) << ID_AA64MMFR2_AT_SHIFT)
#define ID_AA64MMFR2_AT_NONE (UL(0x0) << ID_AA64MMFR2_AT_SHIFT)
#define ID_AA64MMFR2_AT_IMPL (UL(0x1) << ID_AA64MMFR2_AT_SHIFT)