1. A processor comprising: a set of one or more large physical processor cores including all of large physical processor cores of the processor; a set of one or more small physical processor cores having relatively lower performance processing capabilities and relatively lower power usage relative to the large physical processor cores, the set of one or more small physical processor cores including all of small physical processor cores of the processor; and a virtual-to-physical (V-P) mapping circuit to expose the set of large physical processor cores to software through a corresponding set of virtual cores and to hide the set of small physical processor cores from the software.