Virtualization with multiple shadow page tables
US8868880B2 · kind B2 · utility
2Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2013 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Jun 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/152
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computing system includes virtualization software including a guest operating system (OS). A method maintains, by the virtualization software layer, a first shadow page table for use in a kernel mode and a second shadow page table for use in a user mode. The virtualization software switches between using the first shadow page table and the second shadow page table when the guest OS switches between operating in the kernel mode and the user mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.