| With the appearance and rapid development of 3G communications technology and smart mobile and other mobile terminals,it even has been usedwidelyon mobile and other equipment for accessing Internet,payment,financial management and mobile office.Security issues of attendant information and data privacy become more highlight,although in recent years,the mobile phone manufacturer or chip manufacturers have developed their own TEE(Trusted Execution Environment).And because the manufacturers have no uniform standard,these TEE can not run simultaneously on the same mobile terminal,which makes it difficult to be on the market the interests of all stakeholders of the industry chain recognized.It doomed in the market it is difficult to get good promotion and application.From this serious problem to start,the article study and design an embedded virtualization resource platform(Microvisor).This issue use some key technologyincluding real-time microkernel Fiasco.OC,ARM TrustZone security technology and hardware virtualization technology to achieve to run different TEE in one smart mobile using uniform Microvisor Interface to communicate and solve each TEE to obtain independent allocation CPU?memory?resources and thread needed to improve mobile terminal security and user experience.This paper describs from industry background at first.It introduced the current research situationin the mobile terminal security and problems.Then this paper introduces some key technology involved in this subject,such as Fiasco microkernel technology and ARM TrustZone technology and so on.Next,it focuses on this topic in the overall architecture Microvisor and detail the design of several major modules.And this article describes the situation of Microvisor tests carried out functional testing and performance testing to demonstrate the feasibility and practicability of this design.Finally,this paper point out the deficiencies of the system and the direction of future development. |
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