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Operating system permitting limited access to a system page



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Patent 7467271
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Document Number
US Patent 7467271
Issued Date
December 16, 2008
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Abstract
A system page is implemented to provide direct access to operating system data structures by user tasks. Frequently accessed data structures are located in the system page, and may be linked against during linking. The system page memory locations are mapped into user tasks as read-only memory locations, allowing read-only memory accesses during run-time. The system page reduces execution overhead without sacrificing system security.
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Number of Claims:
11
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Published
December 16, 2008
Application Number
10/800,068
Filed
March 11, 2004
US Classification
711/163   707/9 711/152
Int'l Classification
G06F   12/06   (20060101)   G06F   12/14   (20060101)  
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Parent Case
CROSS-REFERENCE TO RELATED APPLICATIONS This application is a division of U.S. application Ser. No. 09/510,107 filed on Feb. 22, 2000, which is now U.S. Pat. No. 6,735,666, which is expressly incorporated herein in its entirety by reference thereto.
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