Patent ID: 7428609

Claim:
A method comprising: determining whether a first peripheral component interface (PCI) resource attached to a PCI bus including interrupt request (IRQ) lines is to be sequestered to a service operating system (OS), and if so, sequestering the first PCI resource to the service OS; determining if at least one other PCI resource that is also attached to the PCI bus including interrupt request (IRQ) lines shares the same line of the bus as the sequestered first PCI resource, and if so, selecting the at least one other PCI resource; sequestering the other selected PCI resource to the service OS; and hiding the first PCI resource and the other sequestered PCI resource from a subsequently loaded host OS without utilizing memory virtualization; wherein hiding the first PCI resource and the other sequestered PCI resource includes storing values associated with the first PCI resource and the other PCI resource to be sequestered to the service OS in a hide resource data structure, the hide resource data structure being used to determine which PCI resources are to be hidden from the subsequently loaded host OS.