diff options
| author | Jens Wiklander <jens.wiklander@linaro.org> | 2024-08-14 17:35:58 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2024-08-26 13:16:20 +0200 |
| commit | f0c8431568eedee7705c92f5c341bdc4567e3ad5 (patch) | |
| tree | d102b8ab05f0e34e24bfeb86094c4b46c3d1fe5b /drivers/tee/optee/optee_ffa.h | |
| parent | c30b855e814d9094e369a19fbd86c9bb5badc154 (diff) | |
optee: probe RPMB device using RPMB subsystem
Adds support in the OP-TEE drivers (both SMC and FF-A ABIs) to probe and
use an RPMB device via the RPMB subsystem instead of passing the RPMB
frames via tee-supplicant in user space. A fallback mechanism is kept to
route RPMB frames via tee-supplicant if the RPMB subsystem isn't
available.
The OP-TEE RPC ABI is extended to support iterating over all RPMB
devices until one is found with the expected RPMB key already
programmed.
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Manuel Traut <manut@mecka.net>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Link: https://lore.kernel.org/r/20240814153558.708365-5-jens.wiklander@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/tee/optee/optee_ffa.h')
| -rw-r--r-- | drivers/tee/optee/optee_ffa.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/tee/optee/optee_ffa.h b/drivers/tee/optee/optee_ffa.h index 5db779dc00de..257735ae5b56 100644 --- a/drivers/tee/optee/optee_ffa.h +++ b/drivers/tee/optee/optee_ffa.h @@ -92,6 +92,8 @@ #define OPTEE_FFA_SEC_CAP_ARG_OFFSET BIT(0) /* OP-TEE supports asynchronous notification via FF-A */ #define OPTEE_FFA_SEC_CAP_ASYNC_NOTIF BIT(1) +/* OP-TEE supports probing for RPMB device if needed */ +#define OPTEE_FFA_SEC_CAP_RPMB_PROBE BIT(2) #define OPTEE_FFA_EXCHANGE_CAPABILITIES OPTEE_FFA_BLOCKING_CALL(2) |