Multi OS configuration system having an interrupt process program executes independently of operation of the multi OS
US6772419B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1998 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Sep 11, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/261
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer system of a multi-operation-system (multi-OS) has a main memory having a memory area for a first OS and a memory area for a second OS, both the areas being independent from each other, and a plurality of I/O devices divisionally allocated to the first OS and the second OS. The first OS is loaded in the first OS memory area, and thereafter when the first OS is operated, the second OS is loaded in the second OS memory area and initialized. When the first OS is operated, the first OS hardware resources and the second OS hardware resources are registered by the first OS. Thereafter when the first OS is operated, the first OS inhibits the registration of an interrupt number already allocated to the second OS I/O device. In response to an interrupt request from a second OS I/O device, the second OS starts operating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.