Display optimization method based on Xen safety computer

Abstract

The invention provides a display optimization method based on Xen safety computer. The method comprises the following steps: simplifying the back end of a host system, customizing the front-end drive of a client system, and optimizing the communication between the front end and the back end. The step of simplifying the back end of a host system comprises is realized as follows: implementing a PCI(Peripheral Component Interconnect) equipment interface and introducing the support of Frame Buffer, and directly drawing the frame buffer image on a screen by reading and writing the Frame Buffer; the step of customizing the front-end drive of a client system is realized as follows: directly obtaining the internal storage I / O (Input / Output) and the port I / O resource provided by the back-end device, and implementing the display environment based on the Frame Buffer through the system Graphics Device Interface (GDI) display interface; and the step of optimizing the communication between the front end and the back end is realized as follows: registering an appointed I / O port in the host system by the back-end device firstly, and directly initiating the callback function implemented by the back end when the front-end drive accesses theses I / Os so as to complete the synchronous interaction of the front end and the back end; then, providing a memory space interacted with the front-end drive by the back end, mapping the memory space to the memory space of the client system, and implementing the interaction in a way of sharing the memory.

Description

technical field [0001] The invention belongs to the application field of virtualization technology, in particular to the field of display module optimization of Xen security computer. technical background [0002] With the rapid development and wide application of computer and network technology, the degree of global informatization continues to increase, and information security issues are increasingly concerned by various fields. Due to the late start of information technology in my country, the level of software and hardware lags behind the international level, and there is no absolute advantage in technical intellectual property rights, the development and research of independent secure computer products is the main task of the development of computer terminals at this stage. [0003] The development of virtualization technology is rapidly changing the face of information technology, and fundamentally changing the traditional way of computing. With virtualization, multi...

AI Technical Summary

Problems solved by technology

When the system is idle, the daemon process of X-window still occupies more system resources

All the display of the virtual client system is based on the X-window desktop operating environment. This implementation transfers all the display performance to the efficiency of X-window graphics drawing, and this is also the performance that directly leads to the poor display effect of the client system. bottleneck

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