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  本文關(guān)鍵詞：嵌入式虛擬機(jī)系統(tǒng)鏡像存儲的研究　出處：《華中科技大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 嵌入式虛擬化 系統(tǒng)鏡像存儲 SD卡 文件直接讀取

【摘要】：隨著計算機(jī)技術(shù)日新月異的發(fā)展，，嵌入式設(shè)備各方面的性能都有了很大程度的提高，這為虛擬化技術(shù)在嵌入式領(lǐng)域的應(yīng)用提供了良好的基礎(chǔ)。由于嵌入式虛擬化技術(shù)在嵌入式軟件開發(fā)及嵌入式系統(tǒng)安全等方面具有良好的特性，各個廠商相繼推出了各種嵌入式虛擬化產(chǎn)品。目前的嵌入式虛擬化系統(tǒng)均采用NAND存儲器存放系統(tǒng)鏡像，而NAND存儲器成本高、讀寫次數(shù)受限的特性帶來了系統(tǒng)空間不夠、系統(tǒng)鏡像更換復(fù)雜、設(shè)備容易損壞等一系列問題。在嵌入式平臺上，如何有效地存放虛擬機(jī)系統(tǒng)鏡像是當(dāng)前的熱點研究問題之一。 嵌入式虛擬機(jī)NAND鏡像管理系統(tǒng)（VNIMS）采用將虛擬機(jī)系統(tǒng)鏡像存儲在安全數(shù)碼（SD）卡中的方式，節(jié)省了NAND存儲器的空間、簡化了虛擬機(jī)升級的過程。系統(tǒng)基于SCTSCGCL開發(fā)的嵌入式虛擬化系統(tǒng)（VNeo），提供對Android操作系統(tǒng)的支持，能夠在嵌入式模擬器上穩(wěn)定的運行兩個Android操作系統(tǒng)。VNIMS由NAND鏡像生成模塊、虛擬機(jī)管理器文件系統(tǒng)模塊和虛擬機(jī)NAND驅(qū)動模塊三個部分組成，分別完成NAND鏡像生成、NAND鏡像查找及NAND鏡像的讀寫。通過增加虛擬機(jī)管理器文件功能，提供對SD卡文件的直接讀寫能力，解決了嵌入式設(shè)備中內(nèi)存空間受限的問題；采用監(jiān)控技術(shù)，截獲前端驅(qū)動命令，自動完成虛擬機(jī)鏡像到底層SD卡的映射。 通過在模擬器上進(jìn)行功能和性能測試表明，在VNeo系統(tǒng)上能夠正常運行兩個Android系統(tǒng)，且CPU、內(nèi)存、文件系統(tǒng)等的性能損耗相對于使用NAND存儲器中的系統(tǒng)鏡像均在10%以內(nèi)。
[Abstract]:With the development of computer technology change rapidly, the performance of embedded devices have been greatly improved, which provides a good basis for the application of virtualization technology in the field of embedded system. The embedded virtualization technology has good characteristics in the development of embedded software and embedded system security etc., various manufacturers have introduced a variety of embedded virtualization products. Embedded virtualization systems are currently using NAND memory storage system image, and NAND memory read write characteristics of high cost, limited number of the system brought space is not enough, the system image to replace the complex, a series of problems of equipment easy to damage. In the embedded platform, how to effectively store the virtual machine image system is a hot topic of current research.
Embedded NAND virtual machine image management system (VNIMS) using virtual machine system image stored in the secure digital (SD) card in a way that saves the NAND memory space, simplify the process of upgrading the virtual machine system. The embedded virtualization system based on SCTSCGCL (VNeo), the Android operating system. The simulator can be stabilized in the embedded operating system.VNIMS running two Android generated by the NAND mirror module, virtual machine manager file system module and the NAND virtual machine to drive the three modules, respectively NAND image generation, NAND image search and NAND image to read and write. By adding virtual machine manager file function, provide read directly on the SD card file writing, solves the memory space of embedded devices is limited; the monitoring technology, intercepted front drive command, automatic virtual machine image The mappings of the underlying SD card.
Through the function and performance test on the simulator, it shows that two Android systems can run normally on the VNeo system, and the performance loss of CPU, memory and file system is less than 10% compared with the system mirroring in NAND memory.

【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TP368.1;TP333

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 湯泉;李小勇;;文件支持的Xen存儲虛擬化研究[J];計算機(jī)工程與應(yīng)用;2009年16期

2 吳松,金海;存儲虛擬化研究[J];小型微型計算機(jī)系統(tǒng);2003年04期

本文編號：1413433