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:
Jul. 20, 2004
Filed:
Apr. 17, 2001
Wayne Gustav Holm, Rochester, MN (US);
Robert Lowell Holtorf, Rochester, MN (US);
Gregory Michael Nordstrom, Pine Island, MN (US);
Allan Henry Trautman, Oronoco, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention generally provides embodiments relative to a method for PCI interrupt routing in a logically partitioned guest operating system. The method, which may be embodied upon a computer readable medium and executed by a processor, may include the steps of locating primary PCI buses, initializing IRQ tables, locating hardware interrupt sources, and activating an interrupt handling process. Embodiments of the present invention include the capability to mask and unmask function interrupts for each device associated with the guest operating system, wherein the process of masking and unmasking function interrupts may include calling a hypervisor to associate an OS IRQ number with a slot.