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Ahmad Fatoum
Type devroom
Navigating the ARM Matryoshka
Starts on day 1 (2021-02-06) at 13:00 (Brussels time, UTC+1) in room Embedded (duration 01:00)
Matrix room #embedded:fosdem.org
Long gone are the times of executing the OS in-place from
memory-mapped flash upon reset. A modern SoC now comes with
complex mask ROM firmware, with driver, filesystem, protocol
and crypto support for loading... yet another bootloader.
In his talk, Ahmad follows this chain of bootloaders until
the kernel is started, stopping along the way for RAM setup,
peripherial initialization, runtime services and other interesting sights.