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[Xen-devel] Newbie on VGA-Passthru

To: "Xen-devel@xxxxxxxxxxxxxxxxxxx" <Xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Newbie on VGA-Passthru
From: Superymk <superymkxen@xxxxxxxxxxx>
Date: Wed, 3 Aug 2011 19:52:06 +0800
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Hi all, sorry to bother.

I'd like to ask how to enable HVM based vga-passthru of the secondary graphics adapter on Xen-4.1-testing?
Now DomU only shows the qemu console after started.

My box's configuration is i7 965 + DX58SO + 2* Nvidia 9800 GTX. I use CentOS 5.6, checkout xen-4.1-testing.hg and jeremy's kernel (2.6.32.43).

I am trying to enable vga-passthru on my box by patching the first four patches according to http://lists.xensource.com/archives/html/xen-devel/2010-05/msg00441.html. It seems all hunks are patched successfully. In order to fix the compile errors. I modified the pass-through patch to make the hunk #1 to be placed in the middle of the pass-through.c file.

I attached the domU config file (winxp), dom0 lspci output (lspci), xl dmesg output (xldmesg). The pci of the secondary graphics card is 03:00.0

Grub config:

title CentOS (2.6.32.43-xen)
    root   (hd0,0)
kernel /boot/xen-4.1.gz dom0_mem=1024M loglvl=all guest_loglvl=all iommu=1 module /boot/vmlinuz-2.6.32.43 root=LABEL=/ ro xen-pciback.hide=(03:00.0)
       module  /boot/initrd-2.6.32.43.img

Thanks a lot!

Attachment: lspci
Description: Text document

Attachment: winxp
Description: Text document

Attachment: xldmesg
Description: Text document

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