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xen-devel
Re: RE: RE: RE: RE: RE: [Xen-devel] No C-States any longer...
On Wed, Jun 15, 2011 at 09:06:38AM -0400, Konrad Rzeszutek Wilk wrote:
> On Wed, Jun 15, 2011 at 11:03:58AM +0200, Carsten Schiers wrote:
> > Thanks for your support.
> >
> > So the plan is to run the very kernel (2.6.32.40 from Jeremy's git)
> > natively, without Xen, and check
> > what acpi.debug and my printks are reporting?
> >
> > Would the other check be to change pr_id from -1 to 0 by some helper code
> > in the right place?
> >
> > Have I correctly understood that my BIOS seems to implement C-States
> > through FADT instead of _CST,
> > which is ok generally, but the FADT PBLK is not correctly set (maybe
> > because it worries about the -1)?
>
> So the FADT PBLK is about this line:
> Processor (CP00, 0x10, 0x00000410, 0x06)
>
> in your DSDT. The 0x0000410 is the PBLK and somehow it is NULL on your box.
> You could
> run iasl -d on the DSDT to find out what exactly is there.
>
> But I *think* that should not affect the C-states as it is just used for
> reserving some
> CardBus regions.
Or maybe not:http://www.coreboot.org/ACPI
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