Research and Implementation of VHPT Based on the IA64 Framework

Being a key technology in memory management, virtual hash page table is a mechanism for the virtual-to-physical address mapping in high performance microprocessor systems. Based on analyzing the 64-bit address space of the IA64 architecture, this paper analyzes the application requirements of the Single Address Space(SAS) and Multiple Address Space(MAS) models, studies the two address mapping mechanisms based on long-format and short-format VHPT, and realizes a hash address algorithm of the two formats of VHPT. This enhances the virtual address translation performance. The simulation results show that this VHPT is compatible with the IA64 framework.