Penglai SDK

This is the SDK for Penglai TEE (sPMP and PMP version).

If you are seeking for SDK for Penglai-TVM, please refer Penglai-SDK-TVM

This repo contains SDK to write host-side applications and enclave-apps, as well as some demos.

Quick Start

Penglai (PMP) provides the instructions and scripts to build and run SDK demos.

Demos

The demo/ directory provides several example enclave applications, e.g., prime.

Building your own demo

As explained in Penglai (PMP), running an enclave demo requires two executables, host and enclave.

If you just want to write some simple demos, such as hello_world, then you can directly use the host executable we provide.

First you should create a new directory in the demo directory to place your enclave related files, such as hello_world, and then create a new file for writing your code, such as hello_world.c.

Before you write your own enclave code, you can refer to the writing of demo/prime/prime.c, and you should note the following requirements:

• EAPP_ENTRY is used to declare that this is the entry function of an enclave;
• EAPP_RESERVE_REG is is used to save the value of the register;
• EAPP_RETURN is used to provide the return value after exiting the enclave;
• If you need to output some information, you can use the eapp_print function which is also used in prime.c, and you can also see its implementation in lib/app/src/print.c;
• Make sure you include the appropriate header files: #include "eapp.h" and #include "print.h";

After you have written the logic of your enclave, you also need to write a corresponding Makefile for your enclave. If your enclave is simple, you can directly imitate the structure of demo/prime/Makefile.

Finally, you need to modify the demo/Makefile to add the name of the newly created directory to the corresponding location. For example, you need to add make -C hello_world under the all target and make -C hello_world clean under the clean target.

Now, you can re-execute PENGLAI_SDK=$(pwd) make -j8 command. If everything is successful, you will see the corresponding executable file appear in your demo directory. Then you just need to refer to Penglai (PMP) to copy the executable file to the VM using scp, and run your own demo, e.g., a hello_world enclave, using ./host hello_world.

Congratulations! You have successfully built and run a demo written by yourself on Penglai.

Licenses

Mulan Permissive Software License，Version 1 (Mulan PSL v1)

Code Contributions

Please use Merge Request/Pull Requests on to pose and contribute your work.

Please fell free to post your concerns, ideas, code or anything others to issues.

Wiki and more documents

Refer our doc website.