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Date: Tue, 17 May 2011 15:58:32 -0500
From: "Serge E. Hallyn" <serge@hallyn.com>
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Subject: Re: [Qemu-devel] [PATCH V4 01/10] Support for TPM command line
	options
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To: Stefan Berger <stefanb@linux.vnet.ibm.com>
Cc: serge@hallyn.com, qemu-devel@nongnu.org, andreas.niederl@iaik.tugraz.at

Quoting Stefan Berger (stefanb@linux.vnet.ibm.com):
> This patch adds support for TPM command line options.
> The command line supported here (considering the libtpms based
> backend) are
> 
> ./qemu-... -tpm type=<type>,path=<path to blockstorage file>,

Hm, I did

kvm -tpm type=builtin,path=tpm.img -m 1G disk.img -vnc :1

with disk.img being a newly installed VM.  I installed trousers
and tpm-tools, tried loading the tpm, tpm_tis, tpm_infineon, and
some other modules, /dev/tpm was never created, and

  tpm_takeownership

continued to give me:

Tspi_Context_Connect failed: 0x00003011 - layer=tsp, code=0011 (17), Communication failure

Which kernel module should work with builtin?

thanks,
-serge