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    SubjectRe: Going beyond 256 PCI buses

    Jonathan Lundell writes:
    > As I recall, even a midline chipset such as the ServerWorks LE
    > supports the use of two north bridges, which implies two PCI bus
    > domains.

    It hides this fact by making config space accesses respond in such a
    way that it appears that it is all behind one PCI controller. The
    BIOS even avoids allowing any of the MEM and I/O resources from
    overlapping.

    Later,
    David S. Miller
    davem@redhat.com

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