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SubjectRe: [RFC] CPUID usage for interaction between Hypervisors and Linux.
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


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