Nicolas Pitre wrote:
...
Exact. For example, on ARM the machine ID is also used to figure out
the MMU mapping needed to be able to simply be able to debug the very
early assembly boot stage when there isn't even a stack available. While
this info is stored in the machine record, it is actually
subarchitecture specific and already half-digested for easy usage by
that initial MMU setup. I just don't want to imagine what the
equivalent functionality with DT would look like.
Under what circumstances would the Linux startup code not have a stack -
or not be able to set up one easily?
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