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Re: [Xen-devel] Vt-d: problem passthrough a PCI ISDN-board in WIndowsXP

To: Ralf Bonenkamp <ralf.bonenkamp@xxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Vt-d: problem passthrough a PCI ISDN-board in WIndowsXP HVM domU with 3.5-unstable
From: Simon Horman <horms@xxxxxxxxxxxx>
Date: Sun, 6 Dec 2009 16:19:17 +1100
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On Wed, Dec 02, 2009 at 04:35:44PM +0100, Ralf Bonenkamp wrote:
> Hi all,
> yesterday I've build the latest xen-unstable on top of a Ubuntu 9.10 x64 
> server.
> Now I setup a XP domU (same problem occurs also with Windos 7 domU) and 
> passthrough a PCI device (ISDN board) into this domU.
> This is basically working and the device is shown in device manager BUT the 
> device lacks the SUBSYS part of the device Id and therefore the device can't 
> be installed or the driver itself failed to load afterwards.
> Example:
> device Id found on "real" system: PCI\VEN_1397&DEV_08B4&SUBSYS_B5401397
> device Id in HVM domU: PCI\VEN_1397&DEV_08B4&SUBSYS_00000000
> This seems to be some sort of regression, because with 3.4.1 (around two 
> month ago) I was able to install the driver and communicate with the same 
> device in a XP domU but had some stability issues, which I now wanted to sort 
> out...
> Any helpful hints are highly appreciated :-)
> If any additional logs/informations are needed please let me know.

Hi Ralf,

I'm having some trouble reproducing this problem.
Could you be a bit more specific about which versions
of xen-unstable and qemu-xen-unstable (aka tools/ioemu-remote)
you are using:

$ hg tip
$ (cd tools/ioemu-remote && git log -1;)

Also, which dom0 kernel are you running?

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