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    SubjectRe: [PATCH] x86: fix probe_nr_irqs for xen
    Yinghai Lu wrote:
    > like system vectors with smp-ipi etc?

    More or less. Xen currently uses 6 per-cpu event channels, and it maps
    each to its own irq. My plan is to allocate just 6 irqs, map 6 vectors
    to them, and bind each event channel to a vector/cpu pair. If nothing
    else, it will make /proc/interrupts somewhat sane again.

    >> Also, implementing probe_nr_irqs() in a more generic (rather than
    >> io_apic-specific) way. Using some interface that queries each irq chip
    >> for how many irqs it supports, or something.
    > hope we can kill nr_irqs/NR_IRQS

    When irqs are truely dynamically allocated?


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