Graphics Card Direct Assignment Based Virtual Machine Graphics Acceleration System
基于显卡直接分配的虚拟机图形加速系统

This paper presents Gracias (Graphic Card Direct Assignment), which directly assign a graphics card to a certain virtual machine. Thus, access request from device driver of the graphic card in virtual machine will not cause any traps into the virtual machine monitor and the request will be handled directly by the hardware instead of software emulation. This makes the programs that have high demand on graphic processing give much better performance than with ordinary virtualization approaches.