kvm_s390_ucas_mapping  991 include/uapi/linux/kvm.h #define KVM_S390_UCAS_MAP        _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping)
kvm_s390_ucas_mapping  992 include/uapi/linux/kvm.h #define KVM_S390_UCAS_UNMAP      _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping)