RE: [Xen-devel] Some question to changeset 17962

["Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx>]

xen-devel-bounces@xxxxxxxxxxxxxxxxxxx <> wrote:
> On 09/03/2009 07:53, "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx> wrote:
> 
>> When I reading changeset 17962, I have several question to it, can anyone
>> give me some hint to it? 
>> 
>> a) The major part of the patch is the affinity for NMI/MCE, what's the
>> relationship between this part with the subject (i.e. the suspend event
>> channel)?
> 
> I incorrectly checked in two patches at once. You should read 17962+17964
> together.

Got it, thanks!

> 
> For (b), Xen itself has okay semantics -- the most recent
> caller to set the
> suspend_evtchn always wins. How tools make use of that policy
> is up to them
> -- since we can only have one save process per domain at a time, it all
> works out fine. 

Are there any special reason that not the first caller hold it (which is more 
nature IMO), and the later caller will failed?

Thanks
-- Yunhong Jiang

> 
> -- Keir
> 
> 
> 
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