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xen-devel
RE: [Xen-devel] Qestion to gfx-passthrough to HVM linux domU
Hi Dietmar,
Your card does not support FLR, but it should still work - the 1 time and then
Dom0 will need rebooting to reset the VGA card.
Sometimes TEXTMODE on the VGA does not work, then kdm loads with VGA mode and
you see DomU gfx. Ok! Try creating a Serial port in DomU and using minicom etc
in Dom0 (or via SSH to Dom0) and debug via the Serial port.
Which patches did you apply?
Tim
-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Dietmar Hahn
Sent: 27 January 2010 12:46
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Qestion to gfx-passthrough to HVM linux domU
Hi list,
I try to get gfx-passthrough on a laptop. I inserted some patches from
Weidong Han and I'am able to passthrough the primary card (the only gfx
card) to the domU (Linux HVM). To connect to the domU I use the serial console.
I boot the domU but can't see the boot loader (grub) screen.
Later the kernel messages are printed (not on every boot!).
I can start X11 on the console (with the passthroughed card) and see the
kdm screen on the console.
If I read the vga-bios from /dev/mem within the domU it's the same as
in dom0.
My questions:
Where to search for the missing boot console messages?
Has this to do with the FLR?
How can I debug this?
gfx: VGA compatible controller: nVidia Corporation G96M [Quadro FX 770M]
Thanks.
Dietmar.
--
Company details: http://ts.fujitsu.com/imprint.html
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