Re: [Xen-devel] [PATCH RFC OSSTEST 7/9] Toolstack: Abstract away migration support check.

[Jim Fehlig <jfehlig@xxxxxxxx>]

Ian Campbell wrote:
> On Tue, 2014-06-17 at 16:26 +0100, Ian Campbell wrote:
>   
>> Not implemented for libvirt (the check that is)
>>     
>
> Jim,
>
> What would be the right thing to do for this? The intention is for
> osstest to skip migration tests when that feature is unimplemented by
> the toolstack/xen/arch combination.
>
> It looks like the output of "virsh capabilities" indicates migration:
>     <migration_features>
>       <live/>
>       <uri_transports>
>         <uri_transport>tcp</uri_transport>
>       </uri_transports>
>     </migration_features>
> is that the right place to look?
>   

Yes.

> Will this capability be automagically suppressed on ARM until we
> implement it?

Unfortunately, no :-/.  Currently, the libvirt libxl driver will include
<migration_features> and call save, restore, and migrate regardless of arch.

>  FYI xl uses LIBXL_HAVE_NO_SUSPEND_RESUME to figure this
> out...
>   

Ah, interesting.  Thanks for the tip.  I'll need to add similar logic in
the libxl driver.

Regards,
Jim


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