Roam:a VM Live Migration System for Integrating Virtualized and Emulated Environment

Today system virtualization and emulation technology have a significant impact on both computer science research and industry.Integrating virtualized and emulated environment to make the guest operating system in the virtual machine(VM) obtain various crucial services is a challenge and important work.Live migration of virtual machines,a practical and novel technique provided by the system virtualization,can be extended to integrate the two computing environments.This paper proposes Roam,a live migration framework which can relocate VMs between virtualized and emulated environment.The proposed approach supports live VM migration between Xen VMM and purely Qemu.Performance measurements show that Roam is a feasible schema which achieves acceptable VM downtime and total migration time.