To Do: This page is outdated. In particular the hardware sections need to be updated. Please also check XenPCIpassthrough wiki page for more general information about Xen PCI passthru usage! VT-d Pass-Through is a technique to give a domU exclusive access to a PCI function using the IOMMU provided by VT-d. It is primarily targeted at HVM (fully virtualised) guests because PV (paravirtualized) pass