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RE: [Xen-devel] [patch] make cpufreq with speedstep-centrino work underX
| To: | "Christian Krafft" <parabelboi@xxxxxxxxxxxxxxx>, <Xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] [patch] make cpufreq with speedstep-centrino work underXen |
| From: | "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> |
| Date: | Mon, 17 Apr 2006 21:24:56 +0100 |
| Delivery-date: | Mon, 17 Apr 2006 13:25:13 -0700 |
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| Thread-index: | AcZiO/WSHE3QBGayQ62MngEFtnTFSAAID7sg |
| Thread-topic: | [Xen-devel] [patch] make cpufreq with speedstep-centrino work underXen |
> The attached patch fixes the speedstep-centrino driver, to > use the hypervisors MSR's instead of direct MSR access. > Without the patch the frequency seems to have changed, but > the powerconsumption of the CPU has not. > Thanks to the patch of Matt T. Yourst found here > http://lists.xensource.com/archives/html/xen-devel/2006-03/msg > 01410.html > It was easy to fix the centrino driver, too. > > If someone could review the patch and bring it upsream (if > it's ok), it would be very nice. Why not just update xen's MSR emulation code to handle this case? The msr hypercall is pretty much a legacy thing. Ian _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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