Re: [Qemu-devel] [PATCH v3 0/3] TPM NVRAM persistent storage

[Corey Bryant]

On 06/14/2013 10:01 AM, Anthony Liguori wrote:
> Corey Bryant <address@hidden> writes:
>
> > This patch series provides persistent storage support that a TPM
> > can use to store NVRAM data.  It uses QEMU's block driver to store
> > data on a drive image.  The libtpms TPM 1.2 backend will be the
> > initial user of this functionality to store data that must persist
> > through a reboot or migration.  A sample command line may look like
> > this:
>
> This should be folded into the libtpms backend series.
>
> There are no users for this so this would just be untestable code in the
> tree subject to bitrot.
>
> Regards,
>
> Anthony Liguori

Fair enough.  I assume you're ok with this code though?

--
Regards,
Corey Bryant

> > qemu-system-x86_64 ...
> > -drive file=/path/to/nvram.qcow2,id=drive-nvram0-0-0
> > -tpmdev libtpms,id=tpm-tpm0
> > -device tpm-tis,tpmdev=tpm-tpm0,id=tpm0,drive=drive-nvram0-0-0
> >
> > Thanks,
> > Corey
> >
> > Corey Bryant (3):
> >    nvram: Add TPM NVRAM implementation
> >    nvram: Add tpm-tis drive support
> >    TPM NVRAM test
> >
> >   hw/tpm/Makefile.objs     |    1 +
> >   hw/tpm/tpm_int.h         |    2 +
> >   hw/tpm/tpm_nvram.c       |  324 ++++++++++++++++++++++++++++++++++++++++++++++
> >   hw/tpm/tpm_nvram.h       |   25 ++++
> >   hw/tpm/tpm_passthrough.c |   85 ++++++++++++
> >   hw/tpm/tpm_tis.c         |    8 +
> >   6 files changed, 445 insertions(+), 0 deletions(-)
> >   create mode 100644 hw/tpm/tpm_nvram.c
> >   create mode 100644 hw/tpm/tpm_nvram.h