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:
Apr. 19, 2011
Filed:
Jul. 29, 2008
Nitin P Gupta, Bangalore, IN;
Madhavan Srinivasan, Tamil Nadu, IN;
Nitin P Gupta, Bangalore, IN;
Madhavan Srinivasan, Tamil Nadu, IN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for managing a virtual memory system configured to allow multiple page sizes is described. Each page size has at least one table associated with it. The method involves maintaining entries in the tables to keep track of the page size for which the effective address is mapped. When a new effective address to physical address mapping needs to be made for a page size, the method accesses the appropriate tables to identify prior mappings for another page size in the same segment. If no such conflicting mapping exists, it creates a new mapping in the appropriate table. A formula is used to generate an index to access a mapping in a table.