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[Xen-users] Re : Re : Xen VGA Passthrough Questions

  • To: "Teo En Ming \(Zhang Enming\)" <singapore.mr.teo.en.ming@xxxxxxxxx>
  • From: David TECHER <davidtecher@xxxxxxxx>
  • Date: Tue, 20 Mar 2012 15:17:59 +0000 (GMT)
  • Cc: "xen-users@xxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxx>
  • Delivery-date: Tue, 20 Mar 2012 15:18:33 +0000
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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

De : Teo En Ming (Zhang Enming) <singapore.mr.teo.en.ming@xxxxxxxxx>
À : David TECHER <davidtecher@xxxxxxxx>
Cc : "xen-users@xxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxx>; Teo En Ming (Zhang Enming) <singapore.mr.teo.en.ming@xxxxxxxxx>
Envoyé le : Mardi 20 mars 2012 16h02
Objet : Re: Re : Xen VGA Passthrough Questions

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

De : Teo En Ming (Zhang Enming) <singapore.mr.teo.en.ming@xxxxxxxxx>
À : "xen-users@xxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxx>; David TECHER <davidtecher@xxxxxxxx>; Teo En Ming (Zhang Enming) <singapore.mr.teo.en.ming@xxxxxxxxx>
Envoyé le : Mardi 20 mars 2012 8h39
Objet : Xen VGA Passthrough Questions

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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