Method and apparatus for managing a dynamic alias page table
US6961840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2002 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Jun 25, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/1018
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.