On Tue, Oct 15, 2024 at 12:34 PM Quentin Schulz quentin.schulz@cherry.de wrote:
I'm wondering if we have somewhere some documentation on the environment variables that exist and what they used for because this would be a nice addition. At the very least, we can mention this variable in:
- include/fdt_support.h for the function
- common/Kconfig for the symbol
I'm not sure if we can expect that all boards can implement the rng_seed_size config knob? Currently rockchip is the only board that implements board_rng_seed.
common/Kconfig BOARD_RNG_SEED description looks rather generic:
It is up to the board code (and more generally the whole BSP) where and how to store (or generate) such a seed, how to ensure a given seed is only used once, how to create a new seed for use on subsequent boots, and whether or not the kernel should account any entropy from the given seed.
I'm also a bit torn on the base though, I think the assumed base is generally hex and not dec, so maybe we should rather have that?
We need a poll here ) Marek Vasut prefers decimal.