Create TPM device based on ovirt source

When having TPM device from the source, create it also for the
destination VM. The data is persist in ovirt. Therefore, if supported
by kubevirt the TPM will be persistent TPM, otherwise the TPM without
persistent data.

In order to have the TPM persistent it is required to have kubvirt
v1.0.0 and adding configuration manually as described in:
https://kubevirt.io/user-guide/virtual_machines/persistent_tpm_and_uefi_state/

It is also supported in CNV running on OCP 4.14, and you need to follow:
https://access.redhat.com/documentation/en-us/openshift_container_platform/4.14/html/virtualization/virtual-machines#virt-using-vtpm-devices

Signed-off-by: Liran Rotenberg <[email protected]>

pkg/controller/plan/adapter/ovirt/builder.go

@@ -284,6 +284,7 @@ func (r *Builder) VirtualMachine(vmRef ref.Ref, object *cnv.VirtualMachineSpec,
 	r.mapMemory(vm, object)
 	r.mapClock(vm, object)
 	r.mapInput(object)
+	r.mapDevices(vm, object)
 	err = r.mapNetworks(vm, object)
 	if err != nil {
 		return
@@ -485,6 +486,13 @@ func (r *Builder) mapDisks(vm *model.Workload, persistentVolumeClaims []core.Per
 	object.Template.Spec.Domain.Devices.Disks = kDisks
 }
 
+func (r *Builder) mapDevices(vm *model.Workload, object *cnv.VirtualMachineSpec) {
+	if vm.TpmEnabled {
+		persistData := true
+		object.Template.Spec.Domain.Devices.TPM = &cnv.TPMDevice{Persistent: &persistData}
+	}
+}
+
 // Build tasks.
 func (r *Builder) Tasks(vmRef ref.Ref) (list []*plan.Task, err error) {
 	vm := &model.Workload{}