Re: [Xen-devel] HVM and WIndows NT

[Alexandre CABROL PERALES <alexandre.cabrol@xxxxxxxx>]

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There is regression bug in QEMU on Cirrus Driver (-vga)
See mail attached from qemu mailing list.

I need CPUI configuration feature which is available only in xen 3.3 and
upper

but in need precedent version of ioemu-qemu-xen.

Can i build xen 3.3 with ioemu-qemu-xen of 3.2

To run Windows NT properly.

I tried to build and run xen-unstable but it fails.

moreover this is production use so i don't want to have unstable features.

Can you help me on this point please?

Alexandre CABROL PERALES a écrit :
> I continued to invistigate and found that in qemu:
> 
> Qemu version 0.10.3:
>   - Fix crash on resolution change -> screen dump -> vga redraw (Avi Kivity)
> 
> http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=da95f49a9d0bc9597bd2c4ab5a7ee9bea7c4b01d
> 
> Fix crash on resolution change -> screen dump -> vga redraw (Avi Kivity)
> The vga screen dump function updates last_width and last_height, but
> does not change the DisplaySurface that these variables describe. A
> consequent vga_draw_graphic() will therefore fail to resize the surface
> and crash. Fix by invalidating the display state after a screen dump,
> forcing vga_draw_graphic() to reallocate the DisplaySurface.
> Signed-off-by: Avi Kivity
> diff --git a/hw/vga.c b/hw/vga.c
> index 2a9f4d9..709d6bb 100644
> --- a/hw/vga.c
> +++ b/hw/vga.c
> @@ -2678,4 +2678,5 @@ static void vga_screen_dump(void *opaque, const
> char *filename)
> vga_screen_dump_graphic(s, filename);
> else
> vga_screen_dump_text(s, filename);
> + vga_invalidate_display(s);
> }
> 
> I compared with xen-3.4 stable vga.c file
> xen-3.4.0/tools/ioemu-qemu-xen/hw/vga.c
> 
> And saw lot of differences.
> 
> Which version of qemu has been used to create xen 3.4.0 tools ?
> 
> Alexandre CABROL PERALES a écrit :
>> just made test with qemu and cirrus 0.9.1 and it works well with resolution.
> 
>> My question now is :
>> how can i use ioemu-qemu-0.9.1 in xen 3.4
> 
>> where can i get the corresponding version of ioemu-qemu?
> 
>> Alexandre CABROL PERALES a écrit :
>>> Can you send me an example please? about the bash sctip call in vm
>>> config file.
>>> Stefano Stabellini a écrit :
>>>> On Fri, 7 Aug 2009, Alexandre CABROL PERALES wrote:
>>>>> -----BEGIN PGP SIGNED MESSAGE-----
>>>>> Hash: SHA1
>>>>>
>>>>> I made the test with latest version of Qemu,
>>>>> and windows nt crash too on screen resol resize.
>>>>>
>>>>> I'm currently testing vmware graphic driver included in new qemu version.
>>>>>
>>>>> Is there anyway to use Bosch or Vmware driver in Xen ?
>>>>>
>>>> If you change your VM config file to call a bash script instead of
>>>> qemu-dm directly, then in your bash script you call qemu-dm yourself,
>>>> adding:
>>>> "-vga vmware" 
>>>> to the command line parameters, it may work.
>>>> _______________________________________________
>>>> Xen-devel mailing list
>>>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>>>> http://lists.xensource.com/xen-devel
>>>> .
> 
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-devel
> 
>> .
> 
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
> 
> .
> 
> 

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- --
Alexandre CABROL PERALES
- --
Ingenieur Securite des Systemes d'Information
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Mail :    alexandre.cabrol@xxxxxxxx
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--- Begin Message ---

• To: Alexandre CABROL PERALES <alexandre.cabrol@xxxxxxxx>, qemu-devel@xxxxxxxxxx
• From: Mark Cave-Ayland <mark.cave-ayland@xxxxxxxxxxxxxx>
• Date: Sat, 08 Aug 2009 12:14:52 +0100
• Cc:
• List-id: qemu-devel.nongnu.org

Alexandre CABROL PERALES wrote:

i tried latest version of qemu with -vga and it crash on display
resolution switch (eg. switch from 640x480 256bits to 1280x1024 65536bits)

i tried on 0.9.1 and it works well.

so maybe there is a bug.

I'm currently running an NT4 on kvm-86 for testing various bits and pieces, and that works fine for me - maybe it's a regression between kvm/qemu-kvm?

I was unable to get the standard NT4 VGA driver to work in anything other than 16 colours, however I did finally have success with the ReactOS driver VBEMP which can be found here: http://www.geocities.com/bearwindows/vbemp.htm

HTH,

Mark.

--
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: +44 870 608 0063


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