On Wed, Feb 28, 2018 at 08:08:39AM +0100, Jiri Pirko wrote:

Tue, Feb 27, 2018 at 10:41:49PM CET, kubakici@wp.pl wrote:

quoted

On Tue, 27 Feb 2018 13:16:21 -0800, Alexander Duyck wrote:

quoted

Basically we need some sort of PCI or PCIe topology mapping for the
devices that can be translated into something we can communicate over
the communication channel. 

Hm.  This is probably a completely stupid idea, but if we need to
start marshalling configuration requests/hints maybe the entire problem
could be solved by opening a netlink socket from hypervisor?  Even make
teamd run on the hypervisor side...

Interesting. That would be more trickier then just to fwd 1 genetlink
socket to the hypervisor.

Also, I think that the solution should handle multiple guest oses. What
I'm thinking about is some generic bonding description passed over some
communication channel into vm. The vm either use it for configuration,
or ignores it if it is not smart enough/updated enough.

For sure, we could build virtio-bond to pass that info to guests.

Such an advisory mechanism would not be a replacement for the mandatory
passthrough fallback flag proposed, but OTOH it's much more flexible.

-- 
MST