Re: [PATCH] x86/microcode_intel_early.c: Get 32-bit physical addressby __pa_nodebug()

From: H. Peter Anvin
Date: Thu Mar 21 2013 - 10:33:03 EST

On 03/21/2013 03:40 AM, Ingo Molnar wrote:
> * Fenghua Yu <fenghua.yu@xxxxxxxxx> wrote:
>> + initrd_start_p = (unsigned long *)__pa_nodebug(&initrd_start);
>> + initrd_start_addr = (unsigned long)__pa_nodebug(*initrd_start_p);
> We should probably use __pa_early() for that - aliased to __pa_nodebug().
> That would self-document the purpose.

Well, it's not that it is early, it is that it actually can execute in
linear mode (paging off).


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