From mboxrd@z Thu Jan  1 00:00:00 1970
From: "H. Peter Anvin" <hpa@kernel.org>
Subject: Re: [RFC] CPUID usage for interaction between Hypervisors	and	Linux.
Date: Wed, 01 Oct 2008 17:57:56 -0700
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Cc: Anthony Liguori <anthony@codemonkey.ws>,
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To: Zachary Amsden <zach@vmware.com>
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H. Peter Anvin wrote:
> 
> Ah, if it was only that simple.  Transmeta actually did this, but it's 
> not as useful as you think.
> 

For what it's worth, Transmeta's implementation used CPUID leaf 
0x80860001.ECX to give the TSC frequency rounded to the nearest MHz. 
The caveat of spread-spectrum modulation applies.

	-hpa