Re: [Qemu-devel] Re: disable clocksource=kvm-clock

[Peter Lieven]

Avi Kivity wrote:
> On 06/01/2010 04:57 PM, Peter Lieven wrote:
> > Avi Kivity wrote:
> > > On 06/01/2010 04:12 PM, Peter Lieven wrote:
> > > > hi,
> > > >
> > > > is it possible to avoid detection of clocksource=kvm_clock in a 
> > > > linux guest by
> > > > patching the qemu-kvm binary?
> > > > i would like to be able to avoid a guest detecting kvm-clock until 
> > > > bug #584516
> > > > is fixed without modifying all guest systems and reverting that later.
> > >
> > > Newer qemu-kvm's will have this feature (using -cpu ...,-kvmclock).
> > with latest git, i can supply this switch, but
> >
> > cat /sys/devices/system/clocksource/clocksource0/current_clocksource
> >
> > still shows kvm_clock in an opensuse 11.2 64-bit or an ubuntu 10.04 
> > 64-bit guest.
>
> Try again with tomorrow's git, I sent out a patchset earlier today 
> that fixes this.
avi, i do not know whats going on. but if i supply -cpu xxx,-kvmclock 
the guest
still uses kvm-clock, but it seems bug #584516 is not triggered...
thats weird...

br,
peter


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Peter Lieven

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