[Engine-devel] RFE: SPICE and VNC graphics at the same time

[Michal Skrivanek]

On Nov 6, 2013, at 10:33 , Frantisek Kobzik <fkobzik at redhat.com> wrote:

> Dear devels,
> 
> I started working on a feature that allows user to run a VM with both SPICE and VNC graphics [1]. In the engine we derive the graphics server type (SPICE/VNC) from the video device (QXL/CIRRUS), which I think is wrong. These are two different things and should be treated separately. What I suggest is to split that configuration in vm_static into two fields:
> 1, (already existing) Display type with values QXL or CIRRUS
> 2, (new) Graphics types - enum or comma-separated string that indicates that the VM should be run with 'spice'/'vnc'/'spice,vnc'/'auto' (the last means that the type will be derived from the video device which is current behavior.

pls take a look at http://gerrit.ovirt.org/#/c/18677/

> 
> The feature would consist of three patches:
> - vdsm - add new field in vm.conf with information about graphics types of a vm.
> - engine backend - add graphics types to VM and corresponding entities, adjust xml rpc communication.
> - engine frontend - "only" adjust the ui.
> 
> The patches would be backwards compatible with older engine/vdsm versions.
> 
> There are some things that must be taken into account, mostly it's about differences in SPICE/VNC supported features (like multimonitors, single qxl, smartcard, migration...). e.g. if you run a vm with both graphic types together the engine should probably disallow some spice features. But this is more of an implementation detail.
> 
> Feel free to reply if you have anything to say about this feature.
> 
> Cheers,
> Franta.
> 
> 
> [1]: https://bugzilla.redhat.com/show_bug.cgi?id=976044
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