On Wed, 19 Dec 2007 11:48:14 -0800
"H. Peter Anvin" <[email protected]> wrote:
>
> I think C3 guarantees that the cache contents stay intact, and thus
> it might make sense in some technology to preserve the TLB as well
> (being a kind of cache.)
that sounds nice. It's fiction though ;-)
The thing to realize is that linux only sees "ACPI C3"; the BIOS maps that C3 to.. well any of the C states the processor in the system has. What you're saying is afaik correct for the *hardware* C3, not for the "C3" that Linux sees..
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