kvm_ioeventfd_flag_nr_datamatch 681 include/uapi/linux/kvm.h #define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch) kvm_ioeventfd_flag_nr_datamatch 681 tools/include/uapi/linux/kvm.h #define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch)