Re: [Patch V1 0/6] Refine generic/PCI MSI irqodmian interfaces

From: Thomas Gleixner
Date: Thu Nov 13 2014 - 16:12:00 EST

On Thu, 13 Nov 2014, Marc Zyngier wrote:
> With the new stacked irq domains, it becomes pretty tempting
> to allocate an MSI domain per PCI bus, which would remove
> the requirement of either relying on arch-specific code, or
> a default PCI MSI domain.

Right. That's what I roughly had in mind. And that would solve the
multi-iommu issue on x86 nicely as well. We establish the association
at the time where the bus gets populated. So the whole lookup magic
simply goes away.



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