[Qemu-devel] [PATCH v2 0/3] TPM NVRAM persistent storage

[Corey Bryant <coreyb@linux.vnet.ibm.com>]

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:

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       |  326 ++++++++++++++++++++++++++++++++++++++++++++++
 hw/tpm/tpm_nvram.h       |   25 ++++
 hw/tpm/tpm_passthrough.c |   85 ++++++++++++
 hw/tpm/tpm_tis.c         |    8 +
 6 files changed, 447 insertions(+), 0 deletions(-)
 create mode 100644 hw/tpm/tpm_nvram.c
 create mode 100644 hw/tpm/tpm_nvram.h