1. Building the Keystone Security Monitor¶
The security monitor (SM) is the core component of Keystone.
The SM is implemented on top of Berkeley Bootloader (bbl).
You can find the latest SM at https://github.com/keystone-enclave/riscv-pk (upstream bbl:
Most of the Keystone SM source code lives in
git clone https://github.com/keystone-enclave/riscv-pk cd riscv-pk
If you have followed Quick Start, the build directory is
already created at
Otherwise, create a build directory.
mkdir build cd build
Configure and build
bbl. The SM can be built by additional flags
--with-target-platform at configuration.
../configure \ --enable-sm \ --with-target-platform=default \ --host=riscv64-unknown-linux-gnu \ --with-payload=<path to vmlinux> make
This will generate the boot image
bbl in the build directory. Use it to boot the machine.
Now, we will customize the SM for a FU540 chip on HiFive Unleashed board. Currently, we only have one experimental platform configuration for FU540. If you wish to add your platform as a target, please submit a proposal to GitHub.