While creating a VM from fedora arm64 datasource, 
1. Datasource points to fedora preference and not fedora arm preference. works fine for rhel10 and rhel9

$ oc get datasources fedora-arm64 -n openshift-virtualization-os-images -o yaml
apiVersion: cdi.kubevirt.io/v1beta1
kind: DataSource  labels:
    app.kubernetes.io/component: storage
    app.kubernetes.io/managed-by: cdi-controller
    app.kubernetes.io/part-of: hyperconverged-cluster
    app.kubernetes.io/version: 4.20.0
    cdi.kubevirt.io/dataImportCron: fedora-image-cron-arm64
    instancetype.kubevirt.io/default-instancetype: u1.medium
    instancetype.kubevirt.io/default-preference: fedora
    kubevirt.io/dynamic-credentials-support: "true"
    template.kubevirt.io/architecture: arm64


$ oc get datasources rhel10-arm64 -n openshift-virtualization-os-images -o yaml
apiVersion: cdi.kubevirt.io/v1beta1
kind: DataSource

    app.kubernetes.io/component: storage
    app.kubernetes.io/managed-by: cdi-controller
    app.kubernetes.io/part-of: hyperconverged-cluster
    app.kubernetes.io/version: 4.20.0
    cdi.kubevirt.io/dataImportCron: rhel10-image-cron-arm64
    instancetype.kubevirt.io/default-instancetype: u1.medium
    instancetype.kubevirt.io/default-preference: rhel.10.arm64
    kubevirt.io/dynamic-credentials-support: "true"
    template.kubevirt.io/architecture: arm64


 2. when i pick fedora.arm64 prefernce manually, VM gets configured on non arm cluster which doesn't look right. 
if i set arch explictly in VM config under spec.template.spec.archtecture: arm64, it throws

Danger alert:An error occurredError "MultiArchitecture feature gate is not enabled in kubevirt-config, invalid entry spec.template.spec.architecture" for field "spec.template.spec.architecture". 

i don't see it in FG
$ oc get kubevirt kubevirt-kubevirt-hyperconverged -n openshift-cnv -o json | jq .spec.configuration.developerConfiguration.featureGates
[  "CPUManager",  "Snapshot",  "HotplugVolumes",  "ExpandDisks",  "HostDevices",  "VMExport",  "KubevirtSeccompProfile",  "VMPersistentState",  "InstancetypeReferencePolicy",  "WithHostModelCPU",  "HypervStrictCheck"]  

HCO have enableMultiArchBootImageImport: true set 
$ oc get hco kubevirt-hyperconverged -n openshift-cnv -o json | jq .spec.featureGates
{
  "alignCPUs": false,
  "decentralizedLiveMigration": false,
  "deployKubeSecondaryDNS": false,
  "disableMDevConfiguration": false,
  "downwardMetrics": false,
  "enableMultiArchBootImageImport": true,
  "persistentReservation": false
}

4.20
Deployed: OCP-4.20.0-ec.6
Deployed: CNV-v4.20.0.rhel9-117

always 

1.
2.
3.

spawning a VM , picks cluster 
$ oc get vm -A
NAMESPACE   NAME                   AGE   STATUS    READY
default     fedora-blush-guan-47   11m   Running   True
[cloud-user@ocp-psi-executor-xl ~]$ oc get vmi -A -o yaml
apiVersion: v1
items:
- apiVersion: kubevirt.io/v1
  kind: VirtualMachineInstance
  metadata:
    annotations:
      kubevirt.io/cluster-instancetype-name: u1.large
      kubevirt.io/cluster-preference-name: fedora.arm64
      kubevirt.io/latest-observed-api-version: v1
      kubevirt.io/storage-observed-api-version: v1
      kubevirt.io/vm-generation: "2"
      vm.kubevirt.io/os: linux
    creationTimestamp: "2025-09-04T16:03:15Z"
    finalizers:
    - kubevirt.io/virtualMachineControllerFinalize
    - foregroundDeleteVirtualMachine
    generation: 19
    labels:
      kubevirt.io/nodeName: ip-10-0-59-221.us-east-2.compute.internal
      network.kubevirt.io/headlessService: headless
    name: fedora-blush-guan-47
    namespace: default
    ownerReferences:
    - apiVersion: kubevirt.io/v1
      blockOwnerDeletion: true
      controller: true
      kind: VirtualMachine
      name: fedora-blush-guan-47
      uid: afbab5b6-764a-4e89-808e-0c41fc7e7562
    resourceVersion: "313781"
    uid: 8cc36eb8-84fe-49d0-8210-7395f767d59e
  spec:
    architecture: amd64
    domain:
      cpu:
        cores: 1
        maxSockets: 8
        model: host-model
        sockets: 2
        threads: 1
      devices:
        autoattachPodInterface: false
        disks:
        - disk:
            bus: virtio
          name: rootdisk
        - disk:
            bus: virtio
          name: cloudinitdisk
        interfaces:
        - macAddress: 02:e5:d3:5b:82:19
          masquerade: {}
          model: virtio
          name: default
        rng: {}
      features:
        acpi:
          enabled: true
      firmware:
        uuid: f91e4d04-20a2-4890-91d8-139238312e51
      machine:
        type: pc-q35-rhel9.6.0
      memory:
        guest: 8Gi
        maxGuest: 32Gi
      resources:
        requests:
          memory: 8Gi
    evictionStrategy: LiveMigrate
    networks:
    - name: default
      pod: {}
    subdomain: headless
    volumes:
    - dataVolume:
        name: fedora-blush-guan-47-volume
      name: rootdisk
    - cloudInitNoCloud:
        userData: |
          #cloud-config
          chpasswd:
            expire: false
          password: uja9-rcq4-rt2l
          user: fedora
      name: cloudinitdisk
  status:
    activePods:
      ed47ffa7-5dd9-483d-899d-91fe7d115d75: ip-10-0-59-221.us-east-2.compute.internal
    conditions:
    - lastProbeTime: null
      lastTransitionTime: "2025-09-04T16:06:08Z"
      status: "True"
      type: Ready
    - lastProbeTime: null
      lastTransitionTime: null
      message: All of the VMI's DVs are bound and ready
      reason: AllDVsReady
      status: "True"
      type: DataVolumesReady
    - lastProbeTime: null
      lastTransitionTime: null
      message: 'cannot migrate VMI: PVC fedora-blush-guan-47-volume is not shared,
        live migration requires that all PVCs must be shared (using ReadWriteMany
        access mode)'
      reason: DisksNotLiveMigratable
      status: "False"
      type: LiveMigratable
    - lastProbeTime: null
      lastTransitionTime: null
      status: "True"
      type: StorageLiveMigratable
    - lastProbeTime: "2025-09-04T16:06:29Z"
      lastTransitionTime: null
      status: "True"
      type: AgentConnected
    currentCPUTopology:
      cores: 1
      sockets: 2
      threads: 1
    guestOSInfo:
      id: fedora
      kernelRelease: 6.14.0-63.fc42.x86_64
      kernelVersion: '#1 SMP PREEMPT_DYNAMIC Mon Mar 24 19:53:37 UTC 2025'
      machine: x86_64
      name: Fedora Linux
      prettyName: Fedora Linux 42 (Cloud Edition)
      version: 42 (Cloud Edition)
      versionId: "42"
    interfaces:
    - infoSource: domain, guest-agent
      interfaceName: enp1s0
      ipAddress: 10.131.0.96
      ipAddresses:
      - 10.131.0.96
      - fe80::e5:d3ff:fe5b:8219
      linkState: up
      mac: 02:e5:d3:5b:82:19
      name: default
      podInterfaceName: eth0
      queueCount: 1
    launcherContainerImageVersion: registry.redhat.io/container-native-virtualization/virt-launcher-rhel9@sha256:3d619787d670d9b026aae66c8ad0b31a87389ee33165e3e189b71a2b62878e3b
    machine:
      type: pc-q35-rhel9.6.0
    memory:
      guestAtBoot: 8Gi
      guestCurrent: 8Gi
      guestRequested: 8Gi
    migrationMethod: BlockMigration
    migrationTransport: Unix
    nodeName: ip-10-0-59-221.us-east-2.compute.internal
    phase: Running
    phaseTransitionTimestamps:
    - phase: Pending
      phaseTransitionTimestamp: "2025-09-04T16:03:15Z"
    - phase: Scheduling
      phaseTransitionTimestamp: "2025-09-04T16:03:15Z"
    - phase: Scheduled
      phaseTransitionTimestamp: "2025-09-04T16:06:08Z"
    - phase: Running
      phaseTransitionTimestamp: "2025-09-04T16:06:10Z"
    qosClass: Burstable
    runtimeUser: 107
    selinuxContext: system_u:object_r:container_file_t:s0:c378,c609
    virtualMachineRevisionName: revision-start-vm-afbab5b6-764a-4e89-808e-0c41fc7e7562-2
    volumeStatus:
    - name: cloudinitdisk
      size: 1048576
      target: vdb
    - name: rootdisk
      persistentVolumeClaimInfo:
        accessModes:
        - ReadWriteOnce
        capacity:
          storage: 30Gi
        claimName: fedora-blush-guan-47-volume
        filesystemOverhead: "0"
        requests:
          storage: "32212254720"
        volumeMode: Block
      target: vda
kind: List
metadata:
  resourceVersion: ""

$ oc get nodes ip-10-0-59-221.us-east-2.compute.internal -o yaml | grep arch
    beta.kubernetes.io/arch: amd64
    cpu-feature.node.kubevirt.io/arch-capabilities: "true"
    host-model-required-features.node.kubevirt.io/arch-capabilities: "true"
    kubernetes.io/arch: amd64
    architecture: amd64