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xen-devel
Re: [Xen-devel] CONFIG_CPU_FREQ change
On Mon, 2006-02-20 at 18:12 +0000, Christian Limpach wrote:
> On 2/20/06, Jan Beulich <JBeulich@xxxxxxxxxx> wrote:
> > To my surprise, c/s 8888 enables CPU_FREQ for x86-64 rather than disabling
> > it for i386. Did anyone at your end actually
> > test that if enabled this at least builds properly now? Not to mention that
> > of course this also should work... If I
> > remember right, the main reason for posting a patch to disable it on
> > 32-bits (similar to how it was on 64-bits before)
> > was that there were some missing symbols, and I don't think I saw any
> > changesets addressing this. Also, from previous
> > discussion I seem to recall that it was generally agreed that there is
> > little point in allowing a single domain (even
> > dom0) to decide whether/what power management actions should be taken
> > without knowing about the requirements of the rest
> > of the system...
>
> I went with the final statement in the thread where you posted the
> patch, from Jeremy Katz stating, that it was working for dom0 and that
> disabling it would remove functionality. It is disabled for
> unprivileged guests. I'm happy to disable it entirely, if it doesn't
> build or if it doesn't work.
centrino cpufreq was working on my laptop about a month ago (with the
caveat of there's not a governor that takes into account activity in a
domU, but that's fine for at least manual scaling
Jeremy
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