Corey Bryant <cor...@linux.vnet.ibm.com> writes: > On 06/14/2013 10:01 AM, Anthony Liguori wrote: >> Corey Bryant <cor...@linux.vnet.ibm.com> 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?
I don't understand why it's needed to be honest. I suspect this has to do with the fact that the libtpms implementation will need significant reworking. Regards, Anthony Liguori > > -- > 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 >> >> >> >>
