PCI Pass-through: iommu & vfio on 8.2

[rfox]

I noticed that iommu is enable by default and no longer requires the "intel_iommu=on" boot parameter - are the vfio modules still required? In the past we always had to add:

vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

to /etc/modules file ??

 

[leesteken]

vfio_virqfd no longer exists as a separate module (since kernel 6.2). I've seen reports that the other ones are not necessary in /etc/modules.

 

[rfox]

Kind of confusing - because there are still many references around (like here: Thomas-Krenn) which leads you to believe it's still relevant. I have several machines in my cluster which have been upgraded over time and still have those entries in /etc/modules - Guess it doesn't hurt . . .