Method and apparatus for controlling initiation of bootstrap loading of an operating system in a computer system having first and second discrete computing zones
US5068780A · kind A · utility
50Cited by
60References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1989 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Aug 1, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/845
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for controlling initiating of bootstrap loading in a computer system having first and second discrete computing zones is disclosed. Each computing zone includes a status register for storing an operating system run (OSR) bit indicating that the zone has initiated bootstrap loading. A cable connects the computing zones to allow the first and second zones to read the status registers in the second and first zones, respectively. A CPU in each zone only enables initiation of bootstrap loading if the OSR bit in the other zone is not set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.