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Re: [Xen-devel] Re: [Xen-users] pci passthrough and Xenserver

  • To: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
  • From: Ritu kaur <ritu.kaur.us@xxxxxxxxx>
  • Date: Fri, 12 Mar 2010 07:18:35 -0800
  • Cc: "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Fri, 12 Mar 2010 07:20:09 -0800
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

what version of Debian Lenny should I be using for domU? I see below snippets in wiki.debian.org/Xen

The default Lenny kernel is the newer paravirt_ops version (2.6.26), which does not function as a dom0 (except for the -xen variants, which have dom0 support but also some issues running as domU (please clarify?). It will also not support PCI passthrough in a domU. For PCI passthrough, you have to run the 2.6.18 etch kernel as both dom0 and domU.

Can you please point me to a domU kernel binary with PV drivers compiled in it and works with XCP 0.1.1 pci passthrough?


On Thu, Mar 11, 2010 at 11:32 PM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
On Fri, 2010-03-12 at 03:04 +0000, Ritu kaur wrote:
> 4. after domU is up,
> a. lspci in domU shows nothing
> b. ifconfig/ifconfig -a shows no interface
> c. driver doesn't seem to load during boot(lsmod doesn't list it, did
> modprobe again)

You seem to be using Lenny as your domU. I don't think the kernel used
in Lenny has pcifront support. You could try installing a more up to
date pvops kernel in your domU.

> 5. lspci in dom0 still lists the pci device.

That is normal. The driver which is bound to the device is in domain 0
should be pciback not something else.


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