Re: [discuss] [patch] x86_64: align and pad x86_64 GDT on page boundary

From: Andi Kleen
Date: Fri Dec 09 2005 - 17:56:24 EST


> Just that any writes on the bp GDT will invalidate the idt_table cacheline,
> which is read mostly (as Nippun pointed out). So could we keep the padding
> as it is for the BP too?

Yes, good point.

> Attached is the patch which fixes the retval in do_boot_cpu to return -1.
> __cpu_up handles -1.
>
> Hope this patch is OK.

Looks good.

Thanks,
-Andi
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