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Date: Tue, 01 Jun 2010 16:06:19 +0200
From: Peter Lieven <pl@dlh.net>
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Subject: Re: [Qemu-devel] Re: disable clocksource=kvm-clock
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To: Avi Kivity <avi@redhat.com>
Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org

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


-- 
Mit freundlichen Grüßen/Kind Regards

Peter Lieven

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