Virtual mode virtual memory manager method and apparatus
US6970990B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2002 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Dec 3, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/126
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A virtual mode virtual memory manager method and apparatus are provided. Mechanisms are provided for allowing a virtual memory manager to operate in virtual mode utilizing virtual addresses for all of its own data structures, allowing for physical discontinuity of the physical memory backing those data structures. First order virtual memory manager metadata is included for resolving system wide virtual memory page faults. Second order virtual memory manager metadata is provided to resolve faults on the first order virtual memory manager metadata. The second order virtual memory manager metadata is associated with pinned entries in a page table and thus, faults on the second order virtual memory manager metadata cannot occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.