Virtual address write back cache with address reassignment and cache block flush

Abstract From the Canadian patent

Hardware and software improvements in workstations which utilize virtual addressing in multi-user operating systems with write back caches, including operating systems which allow each user to have multiple active processes. In virtual addressing multi-user workstations, system performance may be improved significantly by including a virtual address write back cache as one of the system elements. The present invention describes an efficient scheme for supporting data protection and the reassignment of virtual addresses within such a system. The invention features support for multiple active processes each, with its own virtual address space and an operating system, shared by those processes …