[ovirt-users] oVirt Nested Virtualization

Fred Rolland frolland at redhat.com
Sun Mar 5 12:20:18 UTC 2017

Our system tests are using nested virtualization. [1]
Here the relevant part :

Make sure that virtualization extension is enabled on the CPU, otherwise,
you might need to enable it in the BIOS. Generally, if virtualization
extension is disabled, dmesg log would contain a line similar to:

    kvm: disabled by BIOS

Verify nested virtualization is enabled

    $ cat /sys/module/kvm_intel/parameters/nested

 This command should print `Y` if nested virtualization is enabled,
 enable it the following way:

 Edit `/etc/modprobe.d/kvm-intel.conf` and add the following line:

    options kvm-intel nested=y


On Sat, Mar 4, 2017 at 3:46 PM, Luca 'remix_tj' Lorenzetto <
lorenzetto.luca at gmail.com> wrote:

> Hello,
> we're installing a small ovirt cluster for hosting some test
> environments at work. We're interested in testing VM running
> hypervisors (i.e ovirt itself or a small openstack deployment).
> Is there any documentation showing how to enable nested virtualization in
> ovirt?
>  I've seen that while adding an host to the cluster there is the
> opportunity to flag "Nested Virtualization" option, but i didn't
> understand if other packages and configs are required.
> Our environment is running latest ovirt 4.1 installed with ovirt-node-ng.
> Luca
> --
> "E' assurdo impiegare gli uomini di intelligenza eccellente per fare
> calcoli che potrebbero essere affidati a chiunque se si usassero delle
> macchine"
> Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716)
> "Internet è la più grande biblioteca del mondo.
> Ma il problema è che i libri sono tutti sparsi sul pavimento"
> John Allen Paulos, Matematico (1945-vivente)
> Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , <
> lorenzetto.luca at gmail.com>
> _______________________________________________
> Users mailing list
> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
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