Created attachment 1243872 [details]
vdsm and agent logs

Description of problem:
Starting HE VM with OVF that generated by the engine fails with the error:
2017-01-24 11:15:47,855 ERROR (vm/de621350) [virt.vm] (vmId='de621350-94da-435c-a67a-cd616d2fab50') The vm start process failed (vm:616)
Traceback (most recent call last):
  File "/usr/share/vdsm/virt/vm.py", line 552, in _startUnderlyingVm
    self._run()
  File "/usr/share/vdsm/virt/vm.py", line 1994, in _run
    self._connection.createXML(domxml, flags),
  File "/usr/lib/python2.7/site-packages/vdsm/libvirtconnection.py", line 123, in wrapper
    ret = f(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/vdsm/utils.py", line 941, in wrapper
    return func(inst, *args, **kwargs)
  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 3777, in createXML
    if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirtError: XML error: missing RNG device model

Version-Release number of selected component (if applicable):
rhevm-4.1.0.2-0.1.el7.noarch
vdsm-4.19.2-2.el7ev.x86_64
libvirt-client-2.0.0-10.el7_3.4.x86_64

How reproducible:
50% (depends if HE use initial vm.conf or one from the OVF, connect to the bug https://bugzilla.redhat.com/show_bug.cgi?id=1411783)

Steps to Reproduce:
1. Deploy HE
2. Add master storage domain to engine
3. Wait for HE OVF generation
4. Enable global maintenance
5. Run hosted-engine --vm-poweroff
6. Run hosted-engine --vm-start

Actual results:
HE VM fails to start

Expected results:
HE VM succeeds to start with correct configuration

Additional info: