[coreboot-gerrit] [S] Change in coreboot[main]: cbfstool: Add hash to more than one region

[Bao Zheng (Code Review)]

Attention is currently required from: Felix Held, Julius Werner, Marshall Dawson, Zheng Bao.

Bao Zheng has posted comments on this change by Bao Zheng. ( https://review.coreboot.org/c/coreboot/+/85468?usp=email )

Change subject: cbfstool: Add hash to more than one region
......................................................................

Patch Set 13:

(1 comment)

Patchset:

PS1:
> Sorry, I don't understand the "Done". Did you explain this somewhere else? Did I miss it? […]

For the AB recovery, we are trying to make a duplicated copy of all the modules which is needed for a complete boot process. If a corruption happens in partition A, it will reboot from partition B.
Unlike vboot frame work, AB recovery has some difference. 
-There is not RO section. 
-There are two coreboot regions, which contain the romstage, ramstage, bootblock, payload, etc.
So it is hard to extend the vboot to implement AB recovery. Currently the AB recovery and vboot are in parallel in CBFS.