| .. SPDX-License-Identifier: GPL-2.0 | |
| .. index:: | |
| single: optee (command) | |
| optee command | |
| ============= | |
| Synopsis | |
| -------- | |
| :: | |
| optee hello | |
| optee hello <value> | |
| Description | |
| ----------- | |
| This is an OP-TEE sanity test which invokes the "Hello World" | |
| Trusted Application (TA). The TA does two things: | |
| - It prints debug and information messages to the secure console (if logging is enabled) | |
| - It increments the integer value passed as a parameter and returns it | |
| value | |
| Integer value that the TA is expected to increment and return. | |
| The default value is 0. | |
| To enable the OP-TEE Hello World example please refer | |
| https://optee.readthedocs.io/en/latest/building/gits/optee_examples/optee_examples.html | |
| Examples | |
| -------- | |
| :: | |
| ==> optee hello | |
| D/TA: TA_CreateEntryPoint:39 has been called | |
| I/TA: Hello World! | |
| Value before: 0x0 | |
| Calling TA | |
| D/TA: inc_value:105 has been called | |
| I/TA: Got value: 0 from NW | |
| I/TA: Increase value to: 1 | |
| Value after: 0x1 | |
| I/TA: Goodbye! | |
| D/TA: TA_DestroyEntryPoint:50 has been called | |
| ==> optee hello 74 | |
| D/TA: TA_CreateEntryPoint:39 has been called | |
| I/TA: Hello World! | |
| Value before: 0x74 | |
| Calling TA | |
| D/TA: inc_value:105 has been called | |
| I/TA: Got value: 116 from NW | |
| I/TA: Increase value to: 117 | |
| Value after: 0x75 | |
| I/TA: Goodbye! | |
| D/TA: TA_DestroyEntryPoint:50 has been called | |
| Configuration | |
| ------------- | |
| The optee command is enabled by CONFIG_OPTEE=y and CONFIG_CMD_OPTEE=y. | |
| Return value | |
| ------------ | |
| The return value $? is 0 (true) if the command succeeds, 1 (false) otherwise. |