On 11/05/2016 15:55, Michael S. Tsirkin wrote: > > Could they "know" it by adding an iommu=foo argument to e.g. the PCI > > bridge, pointing to the IOMMU device? > > People don't create the pci host bridge though, it's > part of the default machine.
If there's just one of its class you can use -global (similar to how we use it for floppies). Thanks, Paolo