Virtio Data Flow: There and Back Again

Explore the intricate journey of data in virtualized environments through this 17-minute conference talk from DevConf.CZ 2023. Delve into the complexities of data travel between guest userspace and host kernel, unraveling the mysteries of virtqueue areas, backend initialization, protocol feature negotiation sequences, and buffer exchanges. Follow speaker Albert Esteve as he guides you through the fascinating path of data flow in a real virtio device, illuminating the various components and processes involved in this round-trip journey. Gain valuable insights into the inner workings of virtualization technology and enhance your understanding of data transmission in virtualized systems.