The PDF slides for my "Bring Your Own Virtual Devices: Frameworks for Software and Hardware Device Virtualization" talk from the 16th Workshop on Virtualization in High-Performance Cloud Computing are now available.
This talk covers out-of-process device interfaces including vhost (kernel), vhost-user, Linux VFIO, mdev, vfio-user, vDPA, and VDUSE. It gives a brief overview of each interface, how it works, and how to develop your own devices.
The growing number of out-of-process device interfaces available in QEMU/KVM can make it hard to understand and compare them. Each of these interfaces is designed for different use cases. For example, whether you want to pass through hardware or implement the device in software, if you want to implement your device in the host kernel or in host userspace, etc. This talk will give you the necessary knowledge to compare these interfaces yourself so you can decide which one is most appropriate for your use case.
For more information about the design of out-of-process device interfaces, see also my previous blog post about requirements for out-of-process devices.
