Enabling IOMMU

Info

This will be beautified later.

Modify /etc/default/grub:

# Comment out
#GRUB_CMDLINE_LINUX_DEFAULT="quiet"

# For AMD, add:
GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_iommu=on"
# For Intel, add: 
GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on"

Update grub.

update-grub

Add the following to /etc/modules:

vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

Reboot the node.