| 摘要 |
The methods and systems described herein provide for preventing a non-trusted virtual machine from reading the graphical output of a trusted virtual machine. A graphics manager receives a request from a trusted virtual machine to render graphical data using a graphics processing unit. The graphics manager assigns, to the trusted virtual machine, a secure section of a memory of the graphics processing unit. The graphics manager renders graphics from the trusted virtual machine graphical data to the secure section of the graphics processing unit memory. The graphics manager receives a request from a non-trusted virtual machine to read graphics rendered from the trusted virtual machine graphical data and stored in the secure section of the graphics processing unit memory, and prevents the non-trusted virtual machine from reading the trusted virtual machine rendered graphics stored in the secure section of the graphics processing unit memory.
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