[coreboot-gerrit] Change in coreboot[master]: src/Kconfig: increase heap size if using flattened image tree

[Kyösti Mälkki (Code Review)]

Kyösti Mälkki has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/32392 )

Change subject: src/Kconfig: increase heap size if using flattened image tree
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Patch Set 3:
> So it sounds like we need a way to tie in the Kconfig to this allocation (if possible). Have you looked into various options?

In the old days of bounce buffers and non-relocatable ramstage on x86, it would have been fragile for payload to access back to ramstage program. If I read the source correctly, ramstage heap became part of the hand-of-buffer with FIT payloads. Do we really want to allow that?

I think lib/device_tree.c and lib/fit_payload.c should malloc() from a completely separate heap.