[PATCH v2 0/6] Reconfigure TPM when active hash algorithms dismatch

[Raymond Mao]

This patch set implements PCR allocate command to handle the algorithm
dismatches among TPM device, eventlog from previous boot stage and what
U-Boot supports.

It re-configurates TPM device if any active algorithms are not supported by
U-Boot or does not exist in the eventlog passed in.

To re-configurate, a PCR allocate command will be sent with new algorithm
configurations, followed by a shutdown command and a hardware reset to
activate those new configurations.

If any of the algorithms from the eventlog does not supported by U-Boot or
TPM device does not support all U-Boot algorithms, exit with error.

This new feature is under control by a new introduced kconfig
TPM_PCR_ALLOCATE.

Raymond Mao (6):
  tpm: add TPM2_Shutdown command
  tpm: add TPM2_PCR_Allocate command
  tpm: add wrapper and helper APIs for PCR allocate
  tpm: add PCR allocate into the eventlog handling
  tpm: PCR allocate during PCR extend to disable the unsupported
    algorithms
  board: qemu-arm: select TPM_PCR_ALLOCATE

 cmd/tpm-v2.c                 | 128 ++++++++++++++++-
 configs/qemu_arm64_defconfig |   1 +
 include/tpm-v2.h             |  54 +++++++-
 lib/Kconfig                  |  12 ++
 lib/tpm-v2.c                 | 259 ++++++++++++++++++++++++++++++++++-
 lib/tpm_api.c                |   4 +-
 lib/tpm_tcg2.c               |  52 +++----
 7 files changed, 464 insertions(+), 46 deletions(-)

-- 
2.25.1