Re: [Xen-devel] HVM and WIndows NT

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

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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:
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>>>> 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
> 
> .
> 
> 

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Alexandre CABROL PERALES
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