Re: [PATCH v6] x86/apic: limit irq affinity
From: Eric W. Biederman
Date: Sat Nov 21 2009 - 13:50:32 EST
Dimitri Sivanich <sivanich@xxxxxxx> writes:
> This patch allows for hard numa restrictions to irq affinity on x86 systems.
>
> Affinity is masked to allow only those cpus which the subarchitecture
> deems accessible by the given irq.
>
> On some UV systems, this domain will be limited to the nodes accessible
> to the irq's node. Initially other X86 systems will not mask off any cpus
> so non-UV systems will remain unaffected.
Is this a hardware restriction you are trying to model?
If not this seems wrong.
Eric
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