Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early updateucode on Intel's CPU

From: H. Peter Anvin
Date: Wed Dec 19 2012 - 19:24:28 EST

On 12/19/2012 04:07 PM, Jacob Shin wrote:
> From what I remember, accessing memory around the memory hole (not
> just the HT hole, but e038000000 ~ 10000000000 on our mentioned system
> ) generated prefetches because the memory hole was marked as WB in PAT.
> I'll take a look at the system again, try the blanket MTRR covering
> 0xe000000000 ~ 1TB, and talk to our BIOS guys.

Yes, but do they all #MC (as opposed to, say, fetching all FFs)?


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