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SubjectRe: [PATCH v6] x86/apic: limit irq affinity
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Dimitri Sivanich <sivanich@sgi.com> 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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