KVM_REG_ARM64_SYSREG_OP0_SHIFT
>> KVM_REG_ARM64_SYSREG_OP0_SHIFT);
(reg->Op0 << KVM_REG_ARM64_SYSREG_OP0_SHIFT) |
op0 = (id & KVM_REG_ARM64_SYSREG_OP0_MASK) >> KVM_REG_ARM64_SYSREG_OP0_SHIFT;