How to easily run a SCMI server in various Execution Environments

Under construction

Running SCMI server with OP-TEE

The easiest way to test the SCMI server in OP-TEE is to built it for qemu Armv8. OP-TEE documentation provides detailed information to build a qemu Armv8 dev environment here.

The SCP-firmware is not yet part of the manifest but a PR is under review to add it : https://github.com/OP-TEE/manifest/pull/252

Similarly, SCMI server is not enabled by default for qemu_v8 platform but a PR is under review to enable compiling OP-TEE os with SCMI server: https://github.com/OP-TEE/build/pull/695. In the meantime, a manifest using the PR has been created https://github.com/vingu-linaro/manifest/tree/optee-with-scmi .

You just need to add WITH_SCMI=y option in the make command to enable the SCMI server. The whole sequence to use the pending PRs can be summarized:

$ mkdir <project-dir>

$ cd <project-dir>

$ repo init -u https://github.com/vingu-linaro/manifest.git -b optee-with-scmi -m qemu_v8.xml

$ repo sync

$ cd build

$ make toolchains

$ make run WITH_SCMI=y

When booting with SCMI server, we use a dedicated DT instead of the one that is built on the fly by Qemu in order to provide a scmi node. The dts file is available in the build/qemu_v8 directory if someone needs to change it and is based on the dtb generated by Qemu.

By default log are enabled so you should see SCMI requests in the secure world console

Running SCMI server in Secure partition

TBF