| # Queueless Trusty IPC |
| |
| ql-tipc is a portable client library that implements Trusty queueless IPC. |
| It is intended to enable Trusty IPC in bootloader environments. |
| |
| ## Code organization |
| |
| ### IPC components |
| |
| - libtipc - Functions to be called by library user |
| - ipc - IPC library |
| - ipc_dev - Helper functions for sending requests to the secure OS |
| - rpmb_proxy - Handles RPMB requests from secure storage service |
| - avb - Sends requests to the Android Verified Boot service |
| |
| ### Misc |
| |
| - examples/ - Implementations of bootloader-specific code. |
| - arch/$ARCH/ - Architecture dependent implementation of Trusty device |
| (see trusty_dev.h). Implements SMCs on ARM for example. |
| |
| ## Portability Notes |
| |
| The suggested approach to porting ql-tipc is to copy all header and C files |
| into the bootloader and integrate as needed. RPMB storage operations and |
| functions defined in trusty/sysdeps.h require system dependent implementations. |
| |
| If the TIPC_ENABLE_DEBUG preprocessor symbol is set, the code will include |
| debug information and run-time checks. Production builds should not use this. |
| |
