Re: [question] on which cpu an interrupt controller will raise an irq ?

From: Thomas Gleixner
Date: Wed Dec 10 2014 - 11:22:13 EST

On Sun, 7 Dec 2014, Daniel Lezcano wrote:
> I am not very familiar with the interrupt subsystem, so sorry if this sounds a
> stupid question.
> IIUC, when a interrupt happens on a SMP system and if there is no affinity set
> for it, it is delivered following a scheme decided by the interrupt
> controller.
> For example, for the APIC, there is a round robin behaviour, so an interrupt
> will be raised on cpu0, then cpu1, and so on ...
> Is there a way to know on which cpu a controller will raise the interrupt ?

No generic way which would allow to predict it on every controller we


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