Re: [Xen-devel] vTPM on HVM Xen 3.1.2

[Stefan Berger <stefanb@xxxxxxxxxx>]

xen-devel-bounces@xxxxxxxxxxxxxxxxxxx wrote on 12/18/2007
06:19:38 AM:

> 
> Hello,
> 
> I succeeded in using vTPM (TPM Emulator) on HVM Xen (unstable xen
3.2.0 rc2).
> I can confirm the working of the IMA-Linux kernel on vTPM.
> # I wanted to use vTPM on HVM Xen(STABLE 3.1.2) but it didn't work
well.
> ## Special thanks to yasaki@fujitsu. The sucess is owed a lot to him.
> 
> However the TCG-BIOS has NOT worked well. I enabled "BX_TCGBIOS"
for
> "rombios.c" but there was NOT a log in "/sys/kernel/security/tpm0/".
> 
> Please tell me how to enable TCG-BIOS.

If you rebuild the Bochs BIOS with 'make install',
then this is all you need to do.

   Stefan

> 
> I wonder the version of GCC (4.2.3) is correct for the compile, because
> the treatment of NULL and 0 looks to be changed.
> 
> Our test environment and the change of options are follows.
> 
> ----------------------------------------------------------------
> # Test Enviroment
>  - Debian lenny
>  - gcc   gcc version 4.2.3 20071123 (prerelease) (Debian
4.2.2-4)
>  - libc  libc6 2.7-3
>  - Xen unstable xen 3.2.0 rc2
> 
> # Change of options
>  - Config.mk
>     VTPM_TOOLS was enalbed (y)
>  - tools/vtpm_manager/Rules.mk
>     DUMMY_TPM was enabled
>  - tools/firmware/rombios/rombios.c
>     BX_TCGBIOS was enabled (1)
>  - tools/ioemu/hw/tpm_tis.c
>     DEBUG_TPM was defined
>  - tools/vtpm/vtpm/tpm/tpm_emulator.h
>     TPM_STRONG_PERSISTENCE was defined
> ----------------------------------------------------------------
> ------
> suzaki
> 
> 
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