\r
#define OPTEE_SMC_SHARED_MEMORY_CACHED 1\r
\r
+#define OPTEE_SMC_RETURN_UNKNOWN_FUNCTION 0xffffffff\r
+#define OPTEE_SMC_RETURN_RPC_PREFIX_MASK 0xffff0000\r
+#define OPTEE_SMC_RETURN_RPC_PREFIX 0xffff0000\r
#define OPTEE_SMC_RETURN_RPC_FOREIGN_INTERRUPT 0xffff0004\r
\r
#define OPTEE_MESSAGE_COMMAND_OPEN_SESSION 0\r