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:
Aug. 16, 2005
Filed:
Apr. 04, 2002
Richard Louis Arndt, Austin, TX (US);
Luke Matthew Browning, Austin, TX (US);
Bruce Mealey, Austin, TX (US);
Steven Mark Thurber, Austin, TX (US);
Richard Louis Arndt, Austin, TX (US);
Luke Matthew Browning, Austin, TX (US);
Bruce Mealey, Austin, TX (US);
Steven Mark Thurber, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A computer system has physical pages of memory subject to access by input/output ('I/O') devices, and a certain table with entries associating the physical pages with the I/O devices. Responsive to a request for data be moved from a first physical page to a second physical page, an entry is selected for the first physical page in the table. The selected entry indicates an association of the first physical page and one of the I/O devices. Arbitration is temporarily disabled for the selected I/O device so that I/O operations for the I/O device are temporarily disabled. Once arbitration is disabled for the device the data is moved from the first physical page to a second one of the physical pages and the entry is updated in the table to reflect a new association between the I/O device and the second physical page.