Messages in this thread | | | Date | Wed, 19 Dec 2012 16:02:25 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU |
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On 12/19/2012 03:40 PM, Borislav Petkov wrote: > > This is done on the BSP, right? So we can measure it how long it takes > by taking TSC values of start and end. >
Yes, and we can count the number of #PF traps cheaply enough. It would be interesting to put a counter on the number of #PFs and the number of resets and read them out on a large-system boot.
> > Sounds doable but we should take a hard look at the patches so that we > don't miss anything. > > Also, I don't know how stuff like that would be approached for a wider > testing - I mean, it is a serious change in x86 boot code and there will > be issues. >
The goal should be to have this into -tip and -next by the middle of January in order to make the 3.9 merge window, I think.
-hpa
-- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.
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