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:
Nov. 30, 2021
Filed:
Nov. 26, 2018
International Business Machines Corporation, Armonk, NY (US);
Jesse Arroyo, Rochester, MN (US);
Prathima Kommineni, Hyderabad, IN;
Timothy Schimke, Stewartville, MN (US);
Vinod Bussa, Hyderabad, IN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Apparatuses, methods, program products, and systems are presented for interrupt virtualization. An apparatus includes an adapter module that detects a switch from a first physical input/output ('I/O') adapter associated with a logical partition to a second physical I/O adapter associated with the logical partition. The apparatus includes an interrupt module that updates one or more I/O interrupt management structures for the logical partition so that the logical partition receives I/O interrupt information from the second physical I/O adapter and not the first physical I/O adapter without the logical partition being aware of the switch to the second I/O adapter. The apparatus includes an abstraction module that updates physical device information at a hypervisor for the logical partition to reflect the switch to the second physical I/O device.