Inter-processor interrupt: Difference between revisions

Revision as of 04:52, 23 September 2009

Revision as of 20:58, 16 December 2009

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An '''inter-processor interrupt''' ('''IPI''') is a special type of [[interrupt]] by which one processor may interrupt another processor in a [[multiprocessor]] system. IPIs are typically used to implement a [[cache coherency]] [[synchronization]] point.

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In Windows, this has IRQL as 29.

In [[x86 architecture|x86]] based systems, an IPI synchronizes the cache and [[Memory Management Unit]] (MMU) between processors.

== See also ==

* [[Advanced Programmable Interrupt Controller]]

* [[Interrupt]]

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* [[Programmable Interrupt Controller]]

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[[Category:Interrupts]]

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