Messages in this thread | | | Date | Fri, 25 Jan 2002 19:57:06 +0100 (CET) | From | Dave Jones <> | Subject | Re: [PATCH]: Fix MTRR handling on HT CPUs (improved) |
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On Fri, 25 Jan 2002, Alan Cox wrote:
> > just not do it on the right CPU (you're _not_ supposed to read to see if > > you are writing the same value: MTRR's can at least in theory have > > side-effects, so it's not the same check as for the microcode update). > So why not just set it twice - surely that is harmless ? Why add complex > code ?
I wondered the same thing of the microcode changes. Since for the commoncase (ie, non-HT) it now has the side-effect of doing this..
microcode: CPU0 updated from revision 7 to 7, date-10151999
which looks odd in comparison to the old "already current" msg.
-- | Dave Jones. http://www.codemonkey.org.uk | SuSE Labs
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