Booting blobs between U-Boot and Linux

Various blobs like PSCI provider or TEE are currently started between BootROM and the U-Boot bootloader. This has multiple downsides, the blobs are difficult to update and the blobs may configure the platform in a way that prevents U-Boot from accessing all system resources, thus making it less useful as a debug tool. This talk explains how to start U-Boot before most of the blobs, thus giving it full unrestricted access to the platform, and how to start the blobs from U-Boot afterward, so Linux can still access the services like PSCI provided by the blobs. Finally, the talk hints at how to perform a safe A/B update of the blobs.

Project link: https://www.u-boot.org/