I am working on adding SR-IOV for a new adapter and need to find a way to communicate between guest and host drivers without using the adapter hardware. I have been looking at RPMSG-over-VIRTIO as a way to this, but have not been able to figure out how the host would setup the RPMSG device needed for this. I have seen at least one bug in virtio_rpmsg_bus that was discovered and fixed by qemu developers, and so am hoping there may be some experience with rpmsg here that can help. I see an example in the Linux kernel for using rpmsg from the guest (client) side, in samples/rpmsg/rpmsg_client_sample.c. What I'm having difficulty with is finding examples or documentation on how to do the host side. I have heard that the VMMs may also play a role in setting this up, or are doing something similar, but so far I am not able to find code examples in qemu or libvert. Any help would be appreciated, Doug External recipient
