On 05/16/2013 06:17 AM, Michael S. Tsirkin wrote:
> On Thu, May 16, 2013 at 07:07:24PM +0800, Amos Kong wrote:
>> Introduce this new QMP event to notify management after guest changes
>> mac-table configuration.
>>
> 
> This makes it easy for guest to flood management with
> spurious events.
> How about we set a flag after this, and avoid sending any more
> events until management queries the filter status?
>  

Or use rate-limiting, similar to what we have done for other
guest-triggered events (such as BALLOON_CHANGE), where management can
then tweak the maximum frequency at which it is willing to receive events.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org