KVM_REG_ARM64_SYSREG_CRM_MASK
| KVM_REG_ARM64_SYSREG_CRM_MASK
params->CRm = ((id & KVM_REG_ARM64_SYSREG_CRM_MASK)
crm = (id & KVM_REG_ARM64_SYSREG_CRM_MASK) >> KVM_REG_ARM64_SYSREG_CRM_SHIFT;