QEMU-KVM技术框架下的虚拟化设备设计

Virtualization Device Design under the QEMU-KVM Technology Framework

随着科学技术的进步,嵌入式系统得到了快速发展,并广泛地应用于各行各业之中。但随着嵌入式的应用领域逐渐扩大,人们对于嵌入式的应用需求也越来越高,导致了嵌入式产品中硬件和软件系统变得越来越复杂,这不仅直接拉高了嵌入式产品设计的成本投入,同时也大幅提升产品出现故障的概率。为了能够进一步提升嵌入式产品开发的整体效率,降低成本投入和故障出现的概率,本文设计了一种基于嵌入式系统的虚拟化设备,采用QEMU虚拟化平台,通过KVM加速技术来对CPU进行模拟处理,对内存直接适用宿主机硬件资源进行加速,从而达到物理机的水平。在此基础之上,利用重定位共享库技术模拟仿真平台硬件,以解决硬件功能的逻辑问题,从软件层面实现预期的数据结果。

The progress of science and technology has made embedded systems develop rapidly and have been widely used in all walks of life.However,with the gradual expansion of embedded application fields,people’s demand for embedded applications is also getting higher and higher,resulting in the hardware and software systems in embedded products becoming more and more complex,which not only directly increases the cost of embedded product design,but also greatly increases the probability of product failure.In order to further improve the overall efficiency of embedded product development,reduce cost input,and reduce the probability of failure,this paper designed a virtualization device based on embedded system.QEMU virtualization platform was adopted to simulate CPU processing through KVM acceleration technology,and memory was directly applied to host hardware resources to accelerate,so as to achieve the level of physical machines.On this basis,the relocation shared library technology is used to simulate the hardware of the simulation platform to solve the logic problem of the hardware function and implement the expected data results from the software level.