Re: Houston, we have May 15, 1953 (says guest when host uses cpufreq, and dies)

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On Wed, Feb 18, 2009 at 09:02:31PM +0100, Tomasz Chmielewski wrote:
> Marcelo Tosatti schrieb:
>> On Wed, Feb 18, 2009 at 08:18:50PM +0100, Tomasz Chmielewski wrote:
>>> Marcelo Tosatti schrieb:
>>>
>>>>> - what CPU frequency will the guests show? Current host 
>>>>> frequency? Host  frequency from the moment the guest booted (i.e. 
>>>>> right now the guest  will show 1GHz even if the host is running 
>>>>> at 2GHz, or the way around)?
>>>> Host frequency from the moment the guest booted, since the guest does
>>>> not receive frequency change notifications.
>>> Is it possible (or is it planned) to pass frequency to the guest (the 
>>>  one which is displayed in /proc/cpuinfo)?
>>
>> Possible, not planned AFAIK.
>
> Possible, right now? How?

Write a paravirt notification scheme.

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