Patent ID: 8380907
Filing Date: 2013-02-19
Classification: G06F

Abstract:
1. A method for filtering level two guest (G2) quiesce interruption requests, the method comprising: determining, based on any one of a state description address or a system control area origin, a current G2 virtual machine (VM) identifier, wherein responsive to a G2 being a uni-processor, the current G2 VM identifier is obtained from the state description address, and responsive to the G2 being a multi-processor, the current G2 VM identifier is obtained from the system control area origin; receiving a G2 quiesce interruption request at a processor currently or previously executing the G2 running under a level two hypervisor in a logical partition, the logical partition managed by a level one hypervisor, the G2 including a current zone and the current G2 VM identifier, and the G2 quiesce interruption request specifying an initiating zone and an initiating G2 VM identifier; determining if the G2 quiesce interruption request can be filtered by the processor, the determining responsive to the current G2 VM identifier, the current zone, the initiating zone and the initiating G2 VM identifier; and filtering the G2 quiesce interruption request at the processor in response to determining that the G2 quiesce interruption request can be filtered, thereby providing filtering between G2 virtual machines running in the logical partition.