rpc_load()c
| 2024-12-15
本文字數 96閱讀時長≈ 1 分鐘
  • rpc_load()
    • Call thread_rpc_cmd() with OPTEE_RPC_CMD_LOAD_TA RPC command without struct thread_param_memref parameter to request the size of TA.
      • OPTEE_RPC_CMD_LOAD_TA RPC command is saved to struct optee_msg_arg.cmd.
      • struct optee_msg_arg is stored in the shared memory shared with the untrusted domain.
    • Call thread_rpc_alloc_payload() to allocate data for TA.
      • Call thread_rpc_alloc() to allocate shared memory for TA.
        • Call thread_rpc() with rpc_args (rv[THREAD_RPC_NUM_ARGS]). rpc_args’s first element is set to OPTEE_ABI_RETURN_RPC_CMD function. The RPC command is set to OPTEE_RPC_CMD_SHM_ALLOC to allocate the shared memory for TA.
    • Call thread_rpc_cmd() with OPTEE_RPC_CMD_LOAD_TA RPC command again with struct thread_param_memref parameter to load TA.
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