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    SubjectRe: pci segments/domains
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       From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
    Date: Fri, 17 May 2002 14:47:55 +0400

    I can think of the only case where domain info might be interesting - if
    some device wants to know whether it can talk to another device directly.
    We have pci_controller_num(pdev) for this.

    That is an insufficient way to determine this. Maybe I can make two
    PCI devices talk to each other transparently between two domains
    using an IOMMU?
    -
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