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[Xen-devel] Vt-d: problem passthrough a PCI ISDN-board in WIndowsXP HVM domU with 3.5-unstable


  • To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Ralf Bonenkamp <ralf.bonenkamp@xxxxxxxxxxxxxxxx>
  • Date: Wed, 2 Dec 2009 16:35:44 +0100
  • Accept-language: en-US
  • Acceptlanguage: en-US
  • Delivery-date: Fri, 04 Dec 2009 08:51:36 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AQHKc2UcGYuCXtY1xEiWqGxT6JgKrg==
  • Thread-topic: Vt-d: problem passthrough a PCI ISDN-board in WIndowsXP HVM domU with 3.5-unstable

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.

 

Thanks in advance!

Ralf Bonenkamp

 

 


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