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# 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.
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