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Re: [Xen-users] Re : Re : Re : Re : Xen VGA Passthrough Questions
Dear David Techer,
Thank you for your reply.
I am already using Linux Kernel 3.3.0 final.
I will be making changes to my compilation steps for Xen
4.2-unstable changeset 25070.
Let's see how.
Yours sincerely,
Teo En Ming (Zhang Enming)
On 21/03/2012 19:09, David TECHER wrote:
My domU
Windows XP works perfectly with changeset 25070
Did you read http://wiki.xen.org/wiki/Xen_VGA_Passthrough
carefully?
As noticed in your document I am not used to compil my kernel
using
make world
I've got a doubt about building your kernel this way,
your kernel will have all required support for VGA
PassThrough
I'm used to compil from 3.1.10
Extract from documentation on Wiki
==========
Xen VGA passthru requirements
from dom0 kernel
Make sure your dom0 Linux kernel has
"CONFIG_XEN_PCIDEV_BACKEND_PASS" option enabled.
"CONFIG_XEN_PCIDEV_BACKEND_VPCI" should be disabled. For
example Debian Squeeze 2.6.32 kernel has the wrong
PCIDEV_BACKEND mode as a default.. so in that case you might
need to recompile the kernel with custom .config to get the
right backend mode in use. BACKEND_PASS mode means the PCI IDs
of the PCI device (graphics card) will be the same in the VM
as in dom0/host.
===============
So you need to download kernel 3.3 sources and compil it
properly.
Tonight (EST Time so in more than 8 hours ) I will have a
try for kernel 3.3 and see if I have the same error an will
let you know.
Dear David Techer,
Thank you for your reply.
I am using Windows XP / Windows 8 Consumer Preview HVM
domU and not Linux HVM domU.
Please read my Xen VGA Passthrough - Version 1.0.PDF and
see whether I am missing out or making any wrong steps.
Yours sincerely,
Teo En Ming (Zhang Enming)
On 21/03/2012 17:25, David TECHER wrote:
You
need to add nouveau.blacklist=1 in the grub.cfg of
your domU
Have access to partition table of your domU using
kpartx
kpart -va /dev/path/to/your/LVM/domU
mount /dev/mapper/.../....
/path/where/to/mount
vim //path/where/to/mount/boot/grub/grub.cfg
add nouveau.blacklist=1 to the module line.
Umount /path/where/to/mount
kpart -vd /dev/path/to/your/LVM/domU
boot your domU
Install NVIDIA driver.
Hi,
How do I stop lightdm display manager and
X.org server in Ubuntu 11.10 and unload the
nouveau vga driver?
I can run "sudo killall lightdm" and lightdm
and X.org X server will be terminated
successfully, but I cannot force nouveau to
unload at all. It always say nouveau module
is in use even if I use "sudo modprobe
--force --remove nouveau".
I need to unload the following kernel
modules for successful Xen VGA passthrough.
rmmod nouveau
rmmod ttm
rmmod drm_kms_helper
rmmod drm
Please read Deactivating KMS and unloading Nouveau at http://nouveau.freedesktop.org/wiki/KernelModeSetting
But setting "echo 0 >
/sys/class/vtconsole/vtcon1/bind" causes
the display to hang and I can't do
anything more at all.
I can't force nouveau,ttm,drm_kms_helper,drm kernel modules to unload. Help!!!
Also, if I add xen-pciback.hide=(01:00.0) to the module line in GRUB2, the display turns blank while booting and I can't do anything at all. Any ideas?
Thank you very much.
Yours sincerely,
Teo En Ming (Zhang Enming)
On 21/03/2012 00:36, Casey DeLorme wrote:
Hello,
Supposedly both the board & CPU
must have VT-d, the E6300 does not:
If pciback was compiled into your
kernel (not a module) then you can add
"xen-pciback.hide=(01:00.0)" to the
module line in your grub.cfg,
substituting your lspci device names.
nVidia supposedly requires patches
and only works in Windows XP, there
are a few Windows 7 success stories,
but they seem rare. Most people have
success without patches using AMD
cards.
Best of luck.
~Casey DeLorme
On
Tue, Mar 20, 2012 at 11:39 AM, Teo En
Ming (Zhang Enming) <singapore.mr.teo.en.ming@xxxxxxxxx>
wrote:
Dear David Techer and others,
I thought Intel H61 chipset and
MSI motherboards officially don't
support VT-x and VT-d? There is no
VT-d enabling option in MSI
motherboard BIOS.
I want to test Xen VGA passthrough
for Windows 8 Consumer Preview
64-bit English HVM domU with my
Intel DQ45CB motherboard and Intel
Pentium Dual Core E6300 2800 MHz.
By the way, I am using Linux
kernel 3.3.0 Final. Should I use
PCIBACK or PCI-STUB? If I use
pciback, what arguments should I
parse to the kernel command line
in GRUB2? Please point me to the
documentation for kernel command
line arguments in the linux kernel
source tree.
My graphics card: Palit NVIDIA
Geforce 8400 GS PCI Express x16
SGD$44
Thank you very much.
Yours sincerely,
Teo En Ming (Zhang Enming)
On 20/03/2012 23:17, David
TECHER wrote:
You're welcome.
Keep in mind
that if you are going
to upgrade BIOS for
your motherboard,
those values for your
card may changed.
I was in this
situation last time
BIOS was upgraded.
It does mean
that those values will
changed each time you
upgrade your
motherboad BIOS but
having thos values
changed after a BIOS
upgrade could occur
for a specific
upgrade.
Don't ask me
why...I do not know.
So you will be
well advised to heck
those values for each
BIOS upgrade.
Moreover don't
waste your time to
test VGA PassThrough
for NVIDIA for
Windows 7. For
Windows 7 use ATI.
I did my tests
for playing with wine
1.4/1.5 on domU Ubuntu
Lucid 10.04.4 PV HVM
(game like Crysis 2)
and it rocks :)
My
configuration:
Manufacturer: MSI /
Product Name: H61MU-E35
(MS-7680)
Bios version: V10.11
Dear David
Techer,
Thank you.
I think the
following command
is sufficient.
dmesg | grep
01:00.0 | grep
"pci.*mem"
Yours sincerely,
Teo En Ming (Zhang
Enming)
On 20/03/2012
17:54, David
TECHER wrote:
Hi
Teo,
The 3
first lines
with pattern
'pci.*mem'
need to be
returned
U
need to use
somethign like
root@gemini:~#
lspci |grep
VGA
02:00.0 VGA
compatible
controller:
nVidia
Corporation
Device 0ca2
(rev a2)
root@gemini:~#
dmesg|grep
02:00.0 |grep
' pci
[0-9].*mem'|head
-n3
[ 0.174458]
pci
0000:02:00.0:
reg 10: [mem
0xfb000000-0xfbffffff]
[ 0.174466]
pci
0000:02:00.0:
reg 14: [mem
0xd0000000-0xdfffffff
64bit pref]
[ 0.174475]
pci
0000:02:00.0:
reg 1c: [mem
0xee000000-0xefffffff
64bit pref]
Kind
regards
Dear David
Techer,
I have read
through your
article on Xen
VGA
passthrough on
http://www.davidgis.fr.
It appears
that the
following
command on
your blog
doesn't work.
dmesg | grep
01:00.0 | grep
BAR
The above
command shows
nothing at
all. Is there
an alternative
solution?
Thank you very
much.
Yours
sincerely,
Teo En Ming
(Zhang Enming)
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