The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2012
Filed:
Aug. 06, 2007
Michael Edward Tuuk, Austin, TX (US);
Michael Clark, Austin, TX (US);
Michael Edward Tuuk, Austin, TX (US);
Michael Clark, Austin, TX (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A data processing device employs a first translation look-aside buffer (TLB) to translate virtual addresses to physical addresses. If a virtual address to be translated is not located in the first TLB, the physical address is requested from a set of page tables. When the data processing device is in a hypervisor mode, a second TLB is accessed in response to the request to access the page tables. If the virtual address is located in the second TLB, the hypervisor page tables are bypassed and the second TLB provides a physical address or information to access another table in the set of page tables. By bypassing the hypervisor page tables, the time to translate an address in the hypervisor mode is reduced, thereby improving the efficiency of the data processing device.