[coreboot-gerrit] Change in coreboot[master]: lib/cbmem_top: Add a common cbmem_top implementation

[Aaron Durbin (Code Review)]

Aaron Durbin has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/36273 )

Change subject: lib/cbmem_top: Add a common cbmem_top implementation
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Patch Set 1:

(2 comments)

https://review.coreboot.org/c/coreboot/+/36273/1/src/include/cbmem.h 
File src/include/cbmem.h:

https://review.coreboot.org/c/coreboot/+/36273/1/src/include/cbmem.h@77 
PS1, Line 77: uintptr_t
uintptr_t may not match between stages unless we're asserting that's always the case.

https://review.coreboot.org/c/coreboot/+/36273/1/src/include/cbmem.h@79 
PS1, Line 79: void *cbmem_top_romstage(void);
You should add some commentary on these new functions/objects and their semantics.