- Tested PCI passthrough of a Chelsio T5 VF and verified that the IOMMU
was enabled when it was passed through (verified via dmardump tool from
other review).
- Verified IOMMU was not enabled if only "plain" VMs without passthrough
were started.
- Set hw.vmm.iommu.enable=0 in kenv before loading vmm.ko and verified
starting a VM with a pass through device failed. (The error claimed
the device wasn't using ppt, but it still failed.)