When using volume hotplug in an ARM cluster, the block device is never recognized by the guest VM. While the volume is shown in the VM spec and the HP pod is running as expected, libvirt only shows devices that were already there before hotplug.

sh-5.1$ virsh domblklist test-arm_test-cirros-vm ------------------------------------------------------------------------------------------------- 
vda /var/run/kubevirt-ephemeral-disks/disk-data/disk0/disk.qcow2 
vdb /var/run/kubevirt-ephemeral-disks/cloud-init-data/test-arm/test-cirros-vm/noCloud.iso

and lsblk

$ lsblk
NAME    MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
vda     252:0    0  112M  0 disk 
|-vda1  252:1    0  103M  0 part /
-vda15 252:15   0    8M  0 part 
vdb     252:16   0    1M  0 disk 

4.20

Always

1. Create VM in ARM cluster. Tested with Cirros and Fedora.
2. Hotplug a volume.
3. Hotplugged volume is shown in VM spec. 

VM doesn't recognize the hotplugged volume.

Hotplug works as expected.