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:
Jun. 01, 2010
Filed:
Apr. 24, 2009
Adam P. Burns, Austin, TX (US);
Michael N. Day, Round Rock, TX (US);
Brian Flachs, Georgetown, TX (US);
H. Peter Hofstee, Austin, TX (US);
Charles R. Johns, Austin, TX (US);
John Liberty, Round Rock, TX (US);
Adam P. Burns, Austin, TX (US);
Michael N. Day, Round Rock, TX (US);
Brian Flachs, Georgetown, TX (US);
H. Peter Hofstee, Austin, TX (US);
Charles R. Johns, Austin, TX (US);
John Liberty, Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system for limiting the size of a local storage of a processor is provided. A facility is provided in association with a processor for setting a local storage size limit. This facility is a privileged facility and can only be accessed by the operating system running on a control processor in the multiprocessor system or the associated processor itself. The operating system sets the value stored in the local storage limit register when the operating system initializes a context switch in the processor. When the processor accesses the local storage using a request address, the local storage address corresponding to the request address is compared against the local storage limit size value in order to determine if the local storage address, or a modulo of the local storage address, is used to access the local storage.