Re: [Xen-devel] [PATCH v9 15/19] xen: create a Xen nexus to use in PV/PVH

On 01/06/2014 09:35 AM, Roger Pau Monné wrote:
> On 05/01/14 22:55, Julien Grall wrote:
>>
>>
>> On 01/02/2014 03:43 PM, Roger Pau Monne wrote:
>>> Introduce a Xen specific nexus that is going to be in charge for
>>> attaching Xen specific devices.
>>
>> Now that we have a xenpv bus, do we really need a specific nexus for Xen?
>> We should be able to use the identify callback of xenpv to create the bus.
>>
>> The other part of this patch can be merged in the patch #14 "Introduce
>> xenpv bus and a dummy pvcpu device".
>
> On x86 at least we need the Xen specific nexus, or we will fall back to
> use the legacy nexus which is not what we really want.
>

Oh right, in any case can we use the identify callback of xenpv to add 
the bus?

With this solution xenpv can add itself no matter FreeBSD use the 
generic nexus or the nexus Xen, of course with a check if we are running 
on Xen :).

For instance, on ARM side I don't plan to have a specific Xen nexus.

Cheers,

-- 
Julien Grall