23.04.2021 19:32, Thierry Reding пишет:

I've made corresponding changes in the proprietary bootloader, added a
compatibility shim in U-Boot (which forwards information created by the
proprietary bootloader to the kernel) and the attached patches to test
this on Jetson TX1, Jetson TX2 and Jetson AGX Xavier.

Could you please tell what downstream kernel does for coping with the
identity mappings in conjunction with the original proprietary bootloader?

If there is some other method of passing mappings to kernel, could it be
supported by upstream? Putting burden on users to upgrade bootloader
feels a bit inconvenient.