1. A method, comprising: partitioning a memory of a host information handling system (IHS) into a plurality of logical partitions (LPARs) including a particular LPAR, the host IHS including a plurality of physical host channel adapters (HCAs); and providing a single instance of an operating system to the particular LPAR, the single instance of the operating system including a common layer that provides virtualization of the physical HCAs and sharing of the physical HCAs by multiple virtual HCAs.