Thanks. The Installation->Reinstall was something I missed but that doesn't seem to have helped. The host info still says that 'Device Passthrough' is Disabled. I'm sure I enabled everything I needed to in the BIOS but will have to double check. This is an old motherboard without IPMI though. Meh.

On Thu, Apr 16, 2020 at 6:04 PM Strahil Nikolov <hunter86_bg@yahoo.com> wrote:

On April 16, 2020 6:22:35 PM GMT+03:00, Shareef Jalloq <shareef@jalloq.co.uk> wrote:
>Hi,
>
>I'm trying to set up one of our nodes with PCI passthrough but there is
>a
>dead lnk in the documentation for the kernel boot parameter section of
>creating a new host.
>
>https://www.ovirt.org/documentation/admin-guide/sect-Explanation_of_Settings_and_Controls_in_the_New_Host_and_Edit_Host_Windows
>
>Anyone know where this went or can help me with the options?
>
>Shareef.

In order to change a kernel parameter - set the host into maintenance -> edit the host -> kernel -> put ticks where necessary or type your kernel parameter and save.
Next use the 'Installation' dropdown and select reinstall.
Once it's over - reboot the host from UI.

At least this is the way I have enabled nested virtualization.

Best Regards,
Strahil Nikolov