A method, system, program product and computer data structure for providing for two levels of server virtualization. A first hypervisor enables multiple logical partitions to share a set of resources and provides a first level of virtualization. A second hypervisor enables multiple, independent virtual machines to share the resources that are assigned to a single logical partition and provides a second level of virtualization. All events for all of the virtual machines within said single logical partition are grouped into a single partition-owned event queue for receiving event notifications from the shared resources for that single logical partition. A request for an interrupt is signaled for the grouped events from the partition-owned event queue for the demultiplexing of grouped events, by the machine, from the partition-owned event queue into individual, virtualized event queues that are allocated on a per virtual machine basis.

Title
Virtualization of infiniband host channel adapter interruptions
Application Number
11/436012
Publication Number
20070271559
Application Date
May 17, 2006
Publication Date
November 22, 2007
Inventor
Donald W Schmidt
Stone Ridge
NY, US
Damian L Osisek
Vestal
NY, US
Frank W Brice
Hurley
NY, US
Stephen G Wilkins
Endwell
NY, US
Gustav E Sittmann
Webster Groves
MO, US
Ugochukwu C Njoku
Yonkers
NY, US
Tan Lu
Poughkeepsie
NY, US
Charles W Gainey
Poughkeepsie
NY, US
Janet R Easton
Woodstock
NY, US
Agent
IBM Corp Intellectual Property Law
NY, US
Agent
Eugene I Shkurko
NY, US
Assignee
International Business Machines Corporation
NY, US
IPC
G06F 09/455
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