Apparatus and method for performing a rebalance of resources for one or more devices at boot time

摘要

An apparatus and a method for performing a resource rebalance during a boot operation of a computer is provided. The apparatus includes a resource manager that is coupled to a plurality of devices. The resource manager is configured to receive a signal indicative of a desired set of requested resources from each of the plurality of devices and to determine that a first child device requires more resources than an amount previously assigned thereto. The resource manager is configured to locate a lowest common parent device to the first child device, which forms a lowest common subtree and to determine a resource range and to calculate a resource requirement request for the lowest common subtree. The resource manager is further configured to compare the resource requirement to the resource range to determine if a first range of resources is adequate to satisfy a second range of requested resources.