Host setup for VFIO pass-through devices

Red Hat Enterprise Linux 9.2 LPAR mode KVM guest

You must ensure that a VFIO device driver controls the resource on the host.

About this task

The VFIO device driver reserves the pass-through device for KVM guests and accesses the corresponding host resource on behalf of the guest.

Procedure

Although the details differ considerably by device type, the following main steps apply to all VFIO pass-through devices:

  1. Free the resource from control of the default device driver.
  2. Associate the resource with the corresponding VFIO device driver.

What to do next

After completing the host setup for a VFIO pass-through device, you can configure the device for a KVM guest (see KVM Virtual Server Management, SC34-2752).