On 05/17/2011 04:58 PM, Serge E. Hallyn wrote:
Quoting Stefan Berger (stef...@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?
The device model is a tpm-tis. So modprobe tpm_tis should create a
/dev/tpm0. If nothing else helps enable the DEBUG_TIS in hw/tpm_tis and
recompile.
Did you start it with SeaBIOS and the TPM-related patches applied to it?
If not, you'll have to initialize the TPM that otherwise the BIOS would
do. Otherwise the debugging output from the tpm-tis should begin very
early once the BIOS sends commands to the TIS/TPM.
Regards,
Stefan
thanks,
-serge
