Design of information flow in Collaborative-VMM

Information flow control is a key issue in the large-scale systems, it needs to consider the collaboration between multi-components, execution efficiency, system security, and other aspects, the complexity of information flow control is particularly prominent in the virtualization system. The current information flow control in virtualization system mainly use direct communication and asynchronous communication mode, but they have disadvantage such as complexity of VMM designing, increasing the risk of system security, low efficiency of data transmission. In this paper, we establish a synchronous communication mechanism based on the Collaborative-VMM, three key information flow control were designed in this VMM including I/O processing, interrupt processing, and user interface, it can eliminate the issue of processing delay between VMM and the I/O processing component. The experimental results show that the synchronous communication mechanism can simplify the design of virtualization system and does not reduce the performance of the system at the same time, it is a viable information flow control scheme.