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Date: Mon, 15 Nov 2004 21:25:11 -0700
From: Scott Long <scottl@freebsd.org>
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To: "M. Warner Losh" <imp@bsdimp.com>
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cc: freebsd-current@freebsd.org
cc: alex.wilkinson@dsto.defence.gov.au
Subject: Re: Detection of HTT
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M. Warner Losh wrote:
> In message: <20041116022926.GB57056@squash.dsto.defence.gov.au>
>             "Wilkinson, Alex" <alex.wilkinson@dsto.defence.gov.au> writes:
> : Yes you're right ! This sux ! What the hell is Intel claiming that I have a
> : HTT capable CPU, but really I have only 1 core !
> 
> I seem to recall at the time HTT was introduced that you could put an
> HTT into a non-HTT ready mobo.  Maybe that's what's happend?
> 
> Warner

The HTT flag in the CPUID word only says that the CPU supports the MSRs
that tell you how many logical cores are in the CPU.  A value of 1 in
these registers is perfectly acceptable, and doesn't mean that Intel is
ripping you off or that your BIOS is wrong or whatever.  This really
needs to be made into a FAQ, I guess.

Scott