Hi
I have successfully applied the patch mentioned here
(http://lists.xensource.com/archives/html/xense-devel/2007-04/msg00005.html)
to the xen v. 3.1.3 on an HP nx8325 with Infineon TPM.
I cleared the tpm, deleted /var/vtpm/VTPM file and rebooted.
After reboot, vtpm_managerd runs ok. (output is attched to the mail.)
I created a pv vm with the option vtpm = ['instance=1, backend=0'] The
vm boots fine.
I installed trousers-0.3.1 and tpm-tools-1.3.1 from sources on the vm.
I run tcsd -f on the vm. (output is attched to the mail.)
I checkout and run the trousers test suite. 10 tests passed with 230
failed. (Is this expected?)
When I try tpm_takeownership on the vm, the command runs fine. (Although
a strange warning appers on tcsd output which is attched).
But when I try tpm_sealdata < foo on the vm I get the following error.
Tspi_Key_LoadKey failed: 0x00003113 - layer=tsp, code=0113 (275),
Authorization failed
But other tpm_version runs fine on vm.
tpm-test:~# tpm_version
TPM 1.2 Version Info:
Chip Version: 1.2.0.4
Spec Level: 2
Errata Revision: 94
TPM Vendor ID:
TPM Version: 01010000
Manufacturer Info: 4554485a
Also this quote is from Xen User's Guide:
"Similarly, the TPM frontend driver must be compiled for the kernel
trying to use TPM functionality. Its driver can be selected in the
kernel configuration section Device Driver / Character Devices / TPM
Devices. Along with that the TPM driver for the built-in TPM must be
selected."
According to my understanding driver for the built-in TPM must be
selected on the kernel where TPM frontend driver is used. Am I correct
about this assumption? (The problem is tpm_infineon driver can not be
selected on an unpriviledged kernel, it can only be selected on a
priviledged kernel)
Am I missing something here? Why do I get auth errors?
Thanks in advance.
Erdem Bayer
vtpm_managerd.out
Description: Text document
tcsd.out
Description: Text document
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