ID_AA64PFR0_EL0_SHIFT
#define ID_AA64PFR0_EL0_MASK (0xfULL << ID_AA64PFR0_EL0_SHIFT)
#define ID_AA64PFR0_EL0_64 (0x1ULL << ID_AA64PFR0_EL0_SHIFT)
#define ID_AA64PFR0_EL0_64_32 (0x2ULL << ID_AA64PFR0_EL0_SHIFT)