Methods, systems, and computer program products for receiving a memory access request, the memory access request including a virtual memory address; locating a page entry in a page entry structure, the page entry corresponding to the virtual memory address; identifying that a page corresponding to the page entry includes a sub-page, the sub-page included within a subset of a memory space allocated to the page; determining a page frame number corresponding to the sub-page and an offset corresponding to the sub-page; and accessing the offset within the sub-page.