INSTRUCTION FETCH TRANSLATION LOOKASIDE BUFFER MANAGEMENT TO SUPPORT HOST AND GUEST O/S TRANSLATIONS

摘要

A translation lookaside buffer (TLB) configured for use in a multiple operating system environment includes a plurality of storage locations, each storage location being configured to store a page translation entry configured to relate a virtual address range to a physical address range, each page translation entry having an address space identifier (ASID) associated with an operating system. The TLB also includes flush logic configured to receive a TLB flush request from an operating system having an operating system ASID and flush only TLB page translation entries having a stored ASID that matches the operating system ASID.