Protection key management and prefixing in virtual address space legacy emulation system
US10552346B2 · kind B2 · utility
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35References
20Claims
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Key dates
| Filing date | Apr 10, 2018 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Apr 10, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/1052
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system is described to provide protection key access control in a system whose operating system and processor were not designed to provide a protection key memory access control mechanism. Such a system can be applied to an emulator or to enable a system that executes native applications to be interoperable with a legacy system that employs protection key memory access control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.