Bypassing guest page table walk for shadow page table entries not present in guest page table
US8015388B1 · kind B1 · utility
80Cited by
0References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2006 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Jan 1, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/684
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system are provided that does not perform a page walk on the guest page tables if the shadow page table entry corresponding to the guest virtual address for accessing the virtual memory indicates that a corresponding mapping from the guest virtual address to a guest physical address is not present in the guest page tables. A marker or indicator is stored in the shadow page table entries to indicate that a mapping corresponding to the guest virtual address of the shadow page table entry is not present in the guest page table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.