Hello,

I'm importing a VM into a new oVirt environment that is in 4.3.10: the new host is the same as the previous one (only difference it is in 4.3.10 while the old one in 4.3.9).

This VM acted as a single host HCI environment (with 4.3.9). I imported the storage domain containing the VM and its disks and the VM boots ok.

Now its Hosted Engine VM (that is so a nested VM) doesn't start.

I think it was good when I stopped/detached it... and so I would like to cross check and verify if I missed something configuring the new environment or something changed from 4.3.9 to 4.3.10

In vdsm.log I see this reason:

libvirtError: invalid argument: could not find capabilities for arch=x86_64 domaintype=kvm

The relevant parts of the generated xml in vdsm.log seems:

    <cpu match="exact">
        <model>Skylake-Server</model>
        <feature name="spec-ctrl" policy="require"/>
        <feature name="ssbd" policy="require"/>
        <feature name="md-clear" policy="require"/>
        <topology cores="2" sockets="16" threads="1"/>
        <numa>
            <cell cpus="0,1" id="0" memory="16777216"/>
        </numa>
    </cpu>
    <cputune/>  

...

    </metadata>
<on_poweroff>destroy</on_poweroff><on_reboot>destroy</on_reboot><on_crash>destroy</on_crash></domain> (vm:2890)

Any insights?

The configuration of the new 4.3.10 physical oVirt environment that contains the VM has this cluster cpu type:

Intel Skylake Server IBRS SSBD MDS Family

Do I have to change it to anything else? I don't remember how it was set in 4.3.9

Thanks in advance,

Gianluca