Switching to +devel
Browsing the code a bit, I think a good starting point would be
https://github.com/oVirt/vdsm/blob/500c035903dd35180d71c97791e0ce4356fb77...
- if volume_type not in ("rbd", "iscsi"):
+ if volume_type not in ("rbd", "iscsi",
"lightos"):
And it's possible that it would be all that's required to make it work
on ovirt >=4.5
https://github.com/oVirt/vdsm/blob/500c035903dd35180d71c97791e0ce4356fb77...
The path resolver might warn, but it looks like it would return
/dev/nvme0n so the generated udev rule should come out correct
I'm happy to assist if it turns out to be more challenging (and if not) :)