A method and apparatus for managing a dynamic alias page table are provided.
With
the apparatus and method, alias page table entries are added to an alias page table
dynamically by determining if the alias page table has space for the entry and,
if so, the entry describing the virtual address to physical address mapping is
added to the alias page table and a successful completion is returned to the virtual
memory manager. If the alias page table does not have space for the entry, a new
page is used to map the next virtual page of the alias page table. This page must
be marked as a fixed page if it not so marked already. This page is pinned in the
software page frame table, and the hardware page table entry for this page is also pinned.