Messages in this thread | | | Date | Mon, 02 Aug 2004 08:50:53 -0700 | From | "Martin J. Bligh" <> | Subject | Re: finding out the boot cpu number from userspace |
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> 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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