Virtualizing processor memory protection with “domain track”
US8489800B2 · kind B2 · utility
18Cited by
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14Claims
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Key dates
| Filing date | Dec 13, 2010 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Jan 11, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45583
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods for providing shadow page tables that virtualize processor memory protection. In one embodiment, virtualization software maintains the following: (a) a mapping φ from guest domain identifier to a set of shadow L2 page tables that back guest L1 sections marked with a domain identifier; and (b) with each such shadow L2 page table, a set ω of back-pointers to “potentially referencing” shadow L1 descriptors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.