1. 13 Apr, 2022 2 commits
    • Jens Wiklander's avatar
      optee: add OPTEE_SMC_CALL_WITH_RPC_ARG and OPTEE_SMC_CALL_WITH_REGD_ARG · ed8faf6c
      Jens Wiklander authored
      Adds OPTEE_SMC_CALL_WITH_RPC_ARG and OPTEE_SMC_CALL_WITH_REGD_ARG where
      the struct optee_msg_arg to be used for RPC is appended in the memory
      following the normal argument struct optee_msg_arg. This is an
      optimization to avoid caching the RPC argument struct while still
      maintaining similar performance as if it was cached.
      
      OPTEE_SMC_CALL_WITH_REGD_ARG optimized one step further by using a
      registered shared memory object instead. It's in other aspects identical
      to OPTEE_SMC_CALL_WITH_RPC_ARG.
      
      The presence of OPTEE_SMC_CALL_WITH_RPC_ARG and
      OPTEE_SMC_CALL_WITH_REGD_ARG is indicated by the new
      OPTEE_SMC_SEC_CAP_RPC_ARG bit returned by
      OPTEE_SMC_EXCHANGE_CAPABILITIES. OPTEE_SMC_EXCHANGE_CAPABILITIES also
      reports the number of arguments that the RPC argument struct must have
      room for.
      
      OPTEE_SMC_CALL_WITH_RPC_ARG and OPTEE_SMC_CALL_WITH_ARG can be used
      interleaved with difference that when OPTEE_SMC_CALL_WITH_RPC_ARG is
      used the RPC argument struct to be used is the one appended to the
      normal argument struct. The same is true for
      OPTEE_SMC_CALL_WITH_REGD_ARG.
      Reviewed-by: default avatarSumit Garg <sumit.garg@linaro.org>
      Signed-off-by: default avatarJens Wiklander <jens.wiklander@linaro.org>
      ed8faf6c
    • Jens Wiklander's avatar
      optee: rename rpc_arg_count to rpc_param_count · 30c375a7
      Jens Wiklander authored
      Renames the field rpc_arg_count in struct optee to rpc_param_count.
      Function parameter names and local variables are also renamed to match.
      Reviewed-by: default avatarSumit Garg <sumit.garg@linaro.org>
      Signed-off-by: default avatarJens Wiklander <jens.wiklander@linaro.org>
      30c375a7
  2. 03 Apr, 2022 8 commits
  3. 02 Apr, 2022 30 commits