On 06/04/2013 03:23 PM, Eric Blake wrote:
On 06/04/2013 12:18 PM, Corey Bryant wrote:
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
Is a TPM device hot-pluggable? If so, do you have a design for the QMP
counterpart in mind?
Well the TPM is not hot-pluggable. And the feedback we've been getting
is to simplify this support so I'm not sure it's needed/wanted. (?)
--
Regards,
Corey Bryant
Thanks,
Corey
Corey Bryant (2):
nvram: Add TPM NVRAM implementation
nvram: Add tpm-tis drive support
hw/tpm/Makefile.objs | 1 +
hw/tpm/tpm_int.h | 2 +
hw/tpm/tpm_nvram.c | 399 ++++++++++++++++++++++++++++++++++++++++++++++++++
hw/tpm/tpm_nvram.h | 25 +++
hw/tpm/tpm_tis.c | 8 +
5 files changed, 435 insertions(+), 0 deletions(-)
create mode 100644 hw/tpm/tpm_nvram.c
create mode 100644 hw/tpm/tpm_nvram.h
