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[Xen-users] VTPM problem with Xen 3.0 when starting vtpm_managerd

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Anna Fischer <fisanna@xxxxxxxxx>
  • Date: Fri, 3 Feb 2006 17:14:29 +0000
  • Delivery-date: Fri, 03 Feb 2006 19:05:22 +0000
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Hi there,


I tried to get the VTPM running in my Xen 3.0 installation, but it doesn't seem to work so far.


My system:

- xen-unstable 3.0 build from source, downloaded in Jan 06

- Fedora Core 3 on host and guests

- bridge-utils 1.0.6

- gmp-4.1.4


I don't have a TPM chip onboard, so I use the TPM emulator that is delivered in the source of xen-unstable. The patches are all applied and the emulator seems to be alright, a device is installed as /dev/tpm0.


Now I launch the vtpm_managerd and it initializes fine until it then says:


"ERROR[VTPM]: [1] Can't open inbound fh for /dev/tpm0."



I found a similar thread on http://lists.xensource.com/archives/html/xen-users/2005-09/msg00796.html but no answer.


When I start my guest domain the xend log files don't show any errors and say that "The domain has a TPM with instance 2 and devid 0."


Can anybody help me to get the VTPM working?




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