Re: [Qemu-devel] [PATCH 10/10] display: add -display app launching external application

[Paolo Bonzini]

On 07/08/2018 16:30, Gerd Hoffmann wrote:
>>>
>>>    -display spice,client=yes
>> There is no -display spice, atm.
>>
>> However there is a -display vnc.
> That should not be there.  Now that we have a deprecation process
> I should probably actually deprecate it in favor of -vnc.
> 
>> It's a bit unclear to me the relation between -display and
>> -vnc/-spice/-curses etc. In the end, I tend to think of -display foo
>> as a shortcut for a longer -foo configuration.
> -display is for builtin UIs.  You can have exactly one of these.
> 
> -spice and -vnc is for remote protocols.  They can be used together with
> builtin UIs (even though that isn't a typical use case).  Configuring
> both spice and vnc works too.
> 
> -sdl and -curses are shortcuts for -display sdl and -display curses.
> 

Why not allow multiple -display options, but give an error if more than
one builtin UI is specified?

Paolo