Virtual machine system which translates virtual address from a selected virtual machine into real address of main storage
US5077654A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1988 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Dec 8, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0292
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A virtual machine system for executing fast speed address translation in plural virtual machines having a two-stage address translation mechanism. The system permits address translation to be executed by adding to an output from a first address translation address constants in a hold apparatus holding address constants including zero, executing a second address translation, and selecting an output from the first address translation to which the address constants have been added or an output from the second address translation. An address translation for a plurality of different regions is performed by switching a value for the address constants held by the hold apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.