It depends. It may work from ramfs, if the pages for each individual
shareable mapping are contiguous.
It would be most useful if it would work on initramfs, as this (IMHO)
nowadays (with cheap RAM available) is the most important boot strategy
(decompressing/loading the important files from ROM during the boot,
rather than directly using a flash file system in realtime).
I would be _very_ interested in seeing XIP on initramfs for the NIOS
architecture !
-Michael
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