This patch series does away with the hard coded buffer size in the TIS frontend and instead retrieves the buffer size from the device that's being used. So it gets it from the host device or the external emulator. In case the frontend (CRB) cannot support the backend's current buffer size (typically 4k) it can adjust the buffer size the emulator is working with so that we will not run into the problem that the backend produces packets that the frontend cannot deliver to due mismatching buffer sizes.
Stefan Stefan Berger (5): tpm: Move getting TPM buffer size to backends tpm: pull tpm_util_send() out of tpm_util_test() tpm: tpm_passthrough: Read the buffer size from the host device tpm: tpm_emulator: get and set buffer size of device tpm: tpm_passthrough: Fail startup if FE buffer size < BE buffer size backends/tpm.c | 13 +++- hw/tpm/tpm_emulator.c | 83 +++++++++++++++++++++++- hw/tpm/tpm_int.h | 9 +++ hw/tpm/tpm_ioctl.h | 28 +++++++- hw/tpm/tpm_passthrough.c | 30 +++++++++ hw/tpm/tpm_tis.c | 18 +++--- hw/tpm/tpm_util.c | 149 +++++++++++++++++++++++++++++++++++++++++-- hw/tpm/tpm_util.h | 3 + include/sysemu/tpm_backend.h | 17 ++++- 9 files changed, 327 insertions(+), 23 deletions(-) -- 2.5.5
