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[Xen-users] PCI Passthrough to VMX Guest

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: "David Goodlad" <dgoodlad@xxxxxxxxx>
  • Date: Mon, 20 Mar 2006 18:31:20 -0800
  • Delivery-date: Tue, 21 Mar 2006 02:32:51 +0000
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Hi everyone

I've finally got my VMX guest working great (WinXP Pro) on here. 
However, I've got one more thing that I'd like to do.  I have a
secondary PCI-E video card that I want to pass through to the VM.  I
am using xen-unstable, so I know passthru is available...

I have 2 graphics cards installed: an old 4MB PCI SiS 6326, and a
PCI-E Geforce 6200.  The PCI card is initialized first by the BIOS, so
it is the only one being used by Xen afaict.  I have setup my kernel
cmdline options to include:


06:00.0 is the address reported by lspci for the nVidia card.  I've
also got a line in my vmx guest's config:

pci = [ '06:00.0' ]

I still see the device in lspci (I suspect that I shouldn't here!).  I
can't get Windows to see the device at all, either.

Anyone have any idea what could be preventing the device from being
hidden?  Is pci passthru supposed to work with VMX guests (ones w/o
the pci frontend)?


Dave Goodlad
dgoodlad@xxxxxxxxx or dave@xxxxxxxxxx

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