Research on Asynchronous Inter-VM Communication Mechanism Based on Embedded Hypervisor.

Virtualization technology, which has achieved great success in server and desktop environments in the last few years, is currently extending itself towards a new territory: embedded system. OKL4 from Open Kernel Labs is a leading virtualization software for embedded systems. Its microkernel approach can improve plain virtualization technologies, but it also brings incomplete IPC (Inter-Process Communication) issues. This paper proposes a novel asynchronous communication mechanism that can generate multiple event channels and efficiently manage concurrent communication requests between virtual machines. This mechanism optimizes the original IPC mechanism, and this paper also proposes a shared-memorybased bulk data transmission mechanism. The final experiments prove its feasibility and demonstrate the specific effect.