fix entitlements handling for OnDemand CDI devices

[crazy-max]

OnDemand devices are never allowed with current entitlements validation logic. That's because this kind of device is not yet registered in CDI cache at this point.

[tonistiigi]

Alternatively, I'm looking at implementation of FindDevices, is the problem that it is calling m.cache.ListDevices instead of m.ListDevices that adds the ondemand setups?

Additionally, does this have any restrictions with device name, eg. nvidia.com/gpu vs nvidia.com/gpu=all?

[crazy-max]

Alternatively, I'm looking at implementation of FindDevices, is the problem that it is calling m.cache.ListDevices instead of m.ListDevices that adds the ondemand setups?

Yes that's it but with FindDevices we expect actual registered/mounted devices to be returned.

Additionally, does this have any restrictions with device name, eg. nvidia.com/gpu vs nvidia.com/gpu=all?

If no name is specified like nvidia.com/gpu it would return the first device registered such as nvidia.com/gpu=all but would fail for an OnDemand device as nothing is yet registered.

[tonistiigi]

If no name is specified like nvidia.com/gpu it would return the first device registered such as nvidia.com/gpu=all but would fail for an OnDemand device as nothing is yet registered.

We should make it so the nvidia installer also adds =all and =0 (theoretically, we could also detect multi-gpu in Setup but not a high priority).