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

    Thanks,

    tglx




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