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RISC-V Proxy Kernel and Boot Loader + Keystone SM

About

The RISC-V Proxy Kernel, pk, is a lightweight application execution environment that can host statically-linked RISC-V ELF binaries. It is designed to support tethered RISC-V implementations with limited I/O capability and and thus handles I/O-related system calls by proxying them to a host computer.

This package also contains the Berkeley Boot Loader, bbl, which is a supervisor execution environment for tethered RISC-V systems. It is designed to host the RISC-V Linux port.

This also contains the Keystone Security Monitor (SM) in sm.

Build Steps

We suggest building the bbl image using the top-level build in keystone.

If you wish to build the bbl independently, either: follow the build instructions here or follow the flow in the Makefile in keystone.

The top-level Makefile will always be the most up-to-date build instructions.

Test

Make sure that qemu-riscv64 is in your PATH. qemu-riscv64 can be compiled from the upstream qemu source v4.0.0 (try ./configure --target-list=riscv64-linux-user).

Current test only covers the security monitor, and exists as a separate build system.

cd sm/tests
mkdir build; cd build
cmake ..
make

... and run tests!

make test

To see the why your test fails the test, you should try

make test CTEST_OUTPUT_ON_FAILURE=TRUE

About

Security monitor for Keystone Enclave (mirror of riscv-pk). Will be deprecated when openSBI port is ready

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