Method and apparatus for controlling initiation of bootstrap loading of an operating system in a computer system having first and second discrete computing zones
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United States of America Patent
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Nov 26, 1991
Grant Date -
N/A
app pub date -
Aug 1, 1989
filing date -
Aug 1, 1989
priority date (Note) -
Expired
status (Latency Note)
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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.
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