On Thu, Jan 17, 2019 at 01:39:27PM +0100, Arnd Bergmann wrote: > Can you describe how you expect a VOP device over NTB or > PCIe-endpoint would get created, configured and used? > Is there always one master side that is responsible for creating > virtio devices on it, with the slave side automatically attaching to > them, or can either side create virtio devices? Is there any limit on > the number of virtio devices or queues within a VOP device? For VOP device over NTB your configure your device using configfs on one side, and for the other side it will just show up like any other PCIe device, because it is.