libvfio-user

Cool. I've actually been playing with QEMU internals a lot recently. Specifically with the multi-process experimental features. Although I can't seem to find any consistency on where the main project is headed. They admit that the documentation pages can be well out-of-date with the upstream implementations, but they seem split-brained even within the code. The main project ships with the multi-process qemu approach, mostly defined in their docs: https://www.qemu.org/docs/master/system/multi-process.html https://www.qemu.org/docs/master/devel/multi-process.html But I saw some update buried in a mailing list that development of the multi-process system has been superseded by vfio-user, mostly led by nutanix: https://github.com/nutanix/libvfio-user The nutanix repo refers to an oracle-led fork of qemu with the full vfio-user implementation