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[Xen-users] vTPM not working in domU

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] vTPM not working in domU
From: Sebastian Biedermann <biedermann@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 06 Apr 2011 12:00:25 +0200
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Hi list,

I´m not able to use a vTPM in a domU and I cannot figure out what is going wrong.
I´m using Xen 4.0.1 and prepared kernel dom0 package for debian squeeze.

In the dom0, the TPM is working fine.
So I added to the domU config file the line:

vtpm = [ 'instance=1 backend=0']

ID=1 for the domU instance and ID=0 for the domO instance with the working TPM.

But when I start domU there is following error:

Error: Device 0 (vtpm) could not be connected. Hotplug scripts not working.

I dont know whats wrong, the ID´s of the domains are correct

The xend.log File says:

[2011-04-06 11:49:40 2066] DEBUG (DevController:139) Waiting for devices vtpm.
[2011-04-06 11:49:40 2066] DEBUG (DevController:144) Waiting for 0.
[2011-04-06 11:49:40 2066] DEBUG (DevController:628) hotplugStatusCallback /local/domain/0/backend/vtpm/8/0/hotplug-status. [2011-04-06 11:51:20 2066] DEBUG (XendDomainInfo:3053) XendDomainInfo.destroy: domid=8 [2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:2411) Destroying device model
[2011-04-06 11:51:21 2066] INFO (image:615) bpal-img device model terminated
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:2418) Releasing devices
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:2424) Removing vif/0
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:1286) XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:2424) Removing vbd/51712
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:1286) XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/51712
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:2424) Removing vfb/0
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:1286) XendDomainInfo.destroyDevice: deviceClass = vfb, device = vfb/0
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:2424) Removing console/0
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:1286) XendDomainInfo.destroyDevice: deviceClass = console, device = console/0
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:2424) Removing vtpm/0
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:1286) XendDomainInfo.destroyDevice: deviceClass = vtpm, device = vtpm/0
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:2416) No device model
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:2418) Releasing devices
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:2424) Removing vif/0
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:1286) XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:2424) Removing vbd/51712
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:1286) XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/51712
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:2424) Removing vtpm/0
[2011-04-06 11:51:21 2066] DEBUG (XendDomainInfo:1286) XendDomainInfo.destroyDevice: deviceClass = vtpm, device = vtpm/0


Anyone has an idea what I could try?

Thank you!
Sebastian



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