Memory access control in a virtualization environment
US12229047B2 · kind B2 · utility
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Key dates
| Filing date | Apr 20, 2021 |
| Grant date | Feb 18, 2025 |
| Priority date | — |
| Expiry date | Apr 20, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/651
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Memory access control in a virtualization environment is provided. Sets of page tables are maintained, with each set corresponding to a given hypervisor application and guest virtual machine (VM), and each set including mappings to a subset of the guest VM memory to thereby limit an amount of the quest VM memory that is accessible Presentation of these sets is controlled to present just one of the sets at any given time for hypervisor processing to access guest VM memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.