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

["Teo En Ming (Zhang Enming)" <singapore.mr.teo.en.ming@xxxxxxxxx>]

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

---

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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