Re: [Qemu-devel] [PATCH 6/6] docs: add multiseat.txt

[Paolo Bonzini <pbonzini@redhat.com>]

Il 21/05/2014 10:38, Gerd Hoffmann ha scritto:
> On Di, 2014-05-20 at 20:08 +0200, Paolo Bonzini wrote:
>> Is there anything about the window that we would like to configure?  If
>> so, should this be something like
>>
>> 	-object window,id=window.2 \
>> 	-device pci-bridge,addr=12.0,chassis_nr=2,id=head.2 \
>> 	-device secondary-vga,bus=head.2,addr=02.0,window=window.2 \
>> 	-device nec-usb-xhci,bus=head.2,addr=0f.0,id=usb.2 \
>> 	-device usb-kbd,bus=usb.2.0,port=1,window=window.2 \
>> 	-device usb-tablet,bus=usb.2.0,port=2,window=window.2
>>
>> ?
>
> The "window" is a QemuConsole.  Which is a object already, visible
> in /backend/console[nr].  Has a device link pointing to the display
> device it is bound to.
>
> QemuConsoles are automatically created by display devices and don't have
> ids, so we lookup them using the display device id.  See
> qemu_input_handler_bind in patch #3.
>
> If there is anything to configure then it most likely will be ui
> specific, i.e. we could possibly allow something like this ...
>
>    -display gtk,display=video.1 \
>    -vnc :0,display=video.2
>
> ... to have one head show up on gtk and the other on vnc (needs '-vga
> none -device VGA,id=video.1' instead of '-vga std').

How would you configure the case where one input goes to multiple heads 
(e.g. 2 seats, 4 monitors)?

Paolo