Patent ID: 9104513
Filing Date: 2015-08-11
Classification: G06F

Abstract:
1. A computer system for managing quiesce requests, the system including: a quiesce controller communicatively coupled to a processor in a multi-processor system; and a quiesce state machine configured to receive a quiesce request, the computer system to perform a method including: receiving a quiesce request at the quiesce controller from a requesting processor, the requesting processor being one of a plurality of processors in a multi-processor system; determining that the quiesce request is not accepted based on a state of the quiesce state machine; based on the request being not accepted, generating a reject message configured to indicate that the quiesce request has been rejected; holding the reject message until a quiesce command is broadcast to the multi-processor system, the quiesce command based on a different quiesce request; and sending the reject message to the requesting processor based on the broadcast of the quiesce command being detected by the quiesce controller.