[coreboot-gerrit] Change in coreboot[master]: cpu/x86/smm: Add overflow check

[Kyösti Mälkki (Code Review)]

Kyösti Mälkki has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/38763 )

Change subject: cpu/x86/smm: Add overflow check
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Patch Set 1:

I am not sure if rest of the code survives if SMM stub is left uninstalled. I decided to abandon x86-smm-tseg topic now, but there are some static uses of IS_ENABLED(HAVE_SMI_HANDLER) that might take bad route. Maybe even die()?