[Spice-devel] Does spice in xen-4.2.0 support QXL?

[Qian Hu]

Hi, Fabio

Thank you for your advice! I have successfully added the patch to xen-4.2.0
and set the parameters as you said.

It works and the client seems to be better than before.

Still, there is a little problem that the screen is upside down when the
win7 started, exactly the moment the four colorful blocks appeared.

After that, the client is stable and everything is OK. Have you run into
the same problem?

huqian


2012/11/20 Fabio Fantoni <fabio.fantoni at heliman.it>

>  Il 20/11/2012 09:29, Qian Hu ha scritto:
>
> Hi,
>
>  I have tried your patch with xen-4.2.0, but it shows "patch unexpected
> ends in middle of line" at the end.
>
>  Is there any problem with that?
>
>  I can still compile xen and try to add
> "device_model_args=["-device","qxl-vga"]" in the config file, but it didn't
> work
>
>  with command "xl". The error message is as below, and the log says
> "RAMBlock "vga.vram" already registered, abort!"
>
>  Did I miss something?
>
>  Thank you!
>
>  ----------------------error message-------------------------
>  Parsing config from win7.cfg
> xc: info: VIRTUAL MEMORY ARRANGEMENT:
>   Loader:        0000000000100000->000000000019bbc4
>   TOTAL:         0000000000000000->0000000038000000
>   ENTRY ADDRESS: 0000000000100000
> xc: info: PHYSICAL MEMORY ALLOCATION:
>   4KB PAGES: 0x0000000000000200
>   2MB PAGES: 0x00000000000001bf
>   1GB PAGES: 0x0000000000000000
> libxl: error: libxl_dm.c:1217:device_model_spawn_outcome: domain 2 device
> model: spawn failed (rc=-3)
> libxl: error: libxl_qmp.c:641:libxl__qmp_initialize: Connection error:
> Connection refused
> Daemon running with PID 4468
>
>
>
> 2012/11/13 Fabio Fantoni <fabio.fantoni at heliman.it>
>
>>  Hi, everyone!
>>>
>>> I am doing research on remote connect with Xen. My host is Fedora 14 and
>>> my
>>> guest is win7.
>>>
>>> I have installed spice package and now I can connect to my guest by spice
>>> client.
>>>
>>> Now I want to use QXL, but I don't know if it is supported by the spice
>>> in
>>> xen-4.2.0.
>>>
>>> Could anyone help me?
>>>
>>> Thank you!
>>>
>>> huqian
>>>
>> QXL support in xen is planned for 4.3, you can add manually the actual
>> patch for add it, see attachment.
>> I tried it many times, months ago was working but xorg on linux domU not
>> started and on windows domU had blu screen refered to qxl driver, recently
>> starting domU with spice and qxl caused qemu crash with this error on log:
>> (/usr/sbin/xl:3463): Spice-CRITICAL **: red_memslots.c:123:get_virt:
>> slot_id 194 too big, addr=c2c2c2c2c2c2c2c2
>>
>> Some details on one of my latest test:
>> http://lists.xen.org/archives/html/xen-devel/2012-10/msg01820.html
>> Already reported 2 times (on xen) but no reply, I not know if is xen,
>> qemu and/or spice problem.
>> Is now a year I try to have spice with qxlrunning on xen, I have done
>> numerous tests and reports, some bugs/changes on xen and qemu have been
>> made, but are not yet sufficient to have qxl functioning as of kvm:(
>> If someone solve this problem can tell me how please?
>> Thanks for any reply and sorry for bad english
>>
>>
>  "patch unexpected ends in middle of line" at the end is not a problem,
> you can continue to build xen, about xl configuration file remove
> device_model_args, videoram, set vnc=0, qxl=1 and other spice parameters
> you need
>
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