Re: [PATCH] x86_64: use apic core id bits for core nums

On 7/21/07, Andi Kleen <[email protected]> wrote:

On Saturday 21 July 2007 09:56:15 Yinghai Lu wrote:
> please check my version, we should use core id bits instead.
>
> it should replace
> [PATCH for review] [37/48] x86_64: make k8topology multi-core aware

Yes, you're right the patch is not good. It should probably use
information from the regular CPU setup code, not touch cpuid
directly


need move some code into early_identify_cpu from identify_cpu in
arch/x86_64/kernel/setup.c
then could use that bits in bsp cpu info.

BTW:
it seems for BSP only early_identify_cpu is called, and identify_cpu
is only use in smp_callin for AP. Do i miss sth.

YH
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References:
- [PATCH] x86_64: use apic core id bits for core nums
  - From: "Yinghai Lu" <[email protected]>
- Re: [PATCH] x86_64: use apic core id bits for core nums
  - From: Andi Kleen <[email protected]>

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