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    SubjectRe: finding out the boot cpu number from userspace
    > assuming cpu 0 is the boot cpu sounds fragile/incorrect, but for irqbalanced
    > I'd like to find out which cpu is the boot cpu, is there a good way of doing
    > so ?
    >
    > The reason for needing this is that some firmware only likes running on the
    > boot cpu so I need to bind firmware-related irq's to that cpu ideally.

    On any sane arch, cpu 0 *IS* always the boot CPU, as we dynamically number
    CPUs that way ... that doesn't mean that it's apicid 0. I believe that
    PPC64 screwed this up, but AFAIK, everyone else gets it correct ... ;-)

    M.

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