Invention Grant
- Patent Title: Method and system for protecting content in graphics memory
- Patent Title (中): 用于保护图形存储器内容的方法和系统
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Application No.: US11939478Application Date: 2007-11-13
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Publication No.: US08478959B1Publication Date: 2013-07-02
- Inventor: David Wyatt
- Applicant: David Wyatt
- Applicant Address: US CA Santa Clara
- Assignee: NVIDIA Corporation
- Current Assignee: NVIDIA Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Patterson & Sheridan, LLP
- Main IPC: G06F12/00
- IPC: G06F12/00

Abstract:
A method and system for protecting content in graphics memory are disclosed. Specifically, one embodiment of the present invention sets forth a method, which includes the steps of storing a first privilege level in a privilege map with restricted access, wherein the first privilege level is associated with a memory page used to store the content; and determining whether to permit a request to access the memory page based on the first privilege level.
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