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    SubjectRe: APIC IO changes in 2.1.118.

    On Mon, 31 Aug 1998, Matthew G. Marsh wrote:

    > Perhaps this snippet from the Intel MB site may help -
    > IRQ9 cannot be re-assigned
    > IRQ9 is not available to assign to
    > ISA add-in cards because it is
    > dedicated to the power
    > management function of the PIIX4
    > controller on the motherboard.
    > This is true for other motherboards
    > which use the 82371AB PIIX4
    > component.

    this looks promising. We can safely detect the PCI ID of the 82371AB PIIX4
    runtime, instead of querying the ACPI BIOS about the status of IRQ9 (which
    we cant do currently) ... thus the horrible hack of disabling IRQ9 on all
    boards can go away.

    -- mingo

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