Re: [PATCH 14/16] KVM-GST: KVM Steal time registration

[Rik van Riel]

On 01/24/2011 01:06 PM, Glauber Costa wrote:
> Register steal time within KVM. Everytime we sample the steal time
> information, we update a local variable that tells what was the
> last time read. We then account the difference.
>
> Signed-off-by: Glauber Costa<glommer@xxxxxxxxxx>
> CC: Rik van Riel<riel@xxxxxxxxxx>
> CC: Jeremy Fitzhardinge<jeremy.fitzhardinge@xxxxxxxxxx>
> CC: Peter Zijlstra<peterz@xxxxxxxxxxxxx>
> CC: Avi Kivity<avi@xxxxxxxxxx>

On second thought - how does this deal with cpu hotplug and
hot unplug?

Do you allocate a new one of these structs every time a cpu
is hot unplugged and then hotplugged, leaking the old one?

Will leaving the old value around confuse the steal time
calculation?
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