Computing State Migration Between Mobile Platforms for Seamless Computing Environments

Stateless computing is a new computing service focused on migrating user's computing contexts among different devices. In the near future, seamless computing will make computing environment easier to use and human centric. Users will not have spend time doing computing environment setup such as installation and upgrade. They will bring their own computing contexts, which consist of programs, files, and execution states, inside their pockets as saved in a small memory stick. The computing contexts will be restored on various devices, e.g. TV, desktops, mobile phone, PDA, etc. Our demonstration will show the early step to the seamless computing vision. We will demonstrate a seamless computing prototype which migrates computing contexts among different mobile embedded devices. The core technology inside the prototype which enables this computing state capability is the embedded virtual machine monitor (VMM), named as Secure Xen on ARM. We will migrate the whole state of a virtual machine between two HW platforms. Secure Xen on ARM run on the two platforms. A virtual machine running under the VMM on one platform is saved during its execution to USB memory stick, then the memory stick is plugged in to the other platform and the saved context is restored and continue execution of the virtual machine.