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[Xen-users] Re : Regarding :-GPU pass through and VGA pass through

To: akhilesh kumar <akhipatel@xxxxxxxxx>, "Xen-users@xxxxxxxxxxxxxxxxxxx" <Xen-users@xxxxxxxxxxxxxxxxxxx>

From: David TECHER <davidtecher@xxxxxxxx>

Date: Mon, 5 Dec 2011 11:56:21 +0000 (GMT)

Delivery-date: Mon, 05 Dec 2011 11:58:30 +0000

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List-id: Xen user discussion <xen-users.lists.xensource.com>

I've got a GTX 460 SE EVGA 1024 M and it works for VT-d using Windows XP as domU. or Ubuntu Lucid as domU

I can not give your any information for GPU because I do not try.

However I do not have a GTX 480.

For NVidia, you need to patch Xen in order to supporting Vt-d.. I maintain the last patches - as much as I can - for Xen VGA Nvidia

Have a look at

http://xen.1045712.n5.nabble.com/Patches-for-Xen-VGa-Pass-Through-NVIDIA-for-staging-revision-gt-24232-td5025232.html

So you need to extract the "VGA BIOS" using nvtools.

Download Xen sources et compil in tools

rev=24354;hg clone -r $rev http://xenbits.xensource.com/staging/xen-unstable.hg/ xen-unstable.hg-rev-${rev}

cd xen-unstable.hg-rev-${rev}/tools

make -j4 && make clean
cd ..

Apply the patchs

wget -q http://www.davidgis.fr/download/xen-4.2_rev24232_gfx-passthrough-patchs.tar.bz2

tar xjf /xen-4.2_rev24232_gfx-passthrough-patchs.tar.bz2

for file in $(ls xen-4.2_rev24232_gfx-passthrough-patchs/*);do patch -p1 < $file;done

Copy your vgabios et rename it to vgabios-pt.bin

cp <your_vgabios.rom> tools/firmware/vgabios/vgabios-pt.bin

make -j4 xen tools stubdom

make -j4 install-xen && make -j4 install-tools PYTHON_PREFIX_ARG= && make -j4 install-stubdom

De : akhilesh kumar <akhipatel@xxxxxxxxx>
À : Xen-users@xxxxxxxxxxxxxxxxxxx
Envoyé le : Lundi 5 Décembre 2011 7h44
Objet : [Xen-users] Regarding :-GPU pass through and VGA pass through

Hi,

I am using GTX480/590 Nvidia graphics card as per my discussion with "Nvidia support team"

doesn't support VT-d pass through for GTX480/590

I have the following query:-

1->Is GPU pass through and VGA pass through same ?

2->if different in that case can i use GPU pass through for GTX 480/590.

Thanks,

Akhilesh

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