Transparent replacement of a system processor

Details Transparent replacement of a system processor Transparent replacement of a system processor

2011-04-26

2011-04-26

Guyton, Philip (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S013000

Reexamination Certificate

active

07934121

ABSTRACT:
A method and apparatus for transparently replacing a processor, that receives interrupts in a partitioned computing device, with a replacement processor, is disclosed. The method comprises directing the interrupts to an unchangeable identifier mapped to the processor's identifier and replacing the processor with the replacement processor. An intermediary, such as an I/O APIC, is used for storing the unchangeable identifier. The mapping may use logical mode delivery, physical mode delivery, or interrupt mapping.

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