[coreboot-gerrit] Change in coreboot[master]: cpu/x86/smm/smm_stub: Add x86_64 support

[Bill XIE (Code Review)]

Bill XIE has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/37392 )

Change subject: cpu/x86/smm/smm_stub: Add x86_64 support
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Patch Set 8:

(1 comment)

Patchset:

PS8: 
It seems that the SMM stack canary introduced in https://review.coreboot.org/c/coreboot/+/27229 was broken by this commit. Now it is nearly guaranteed that if CONFIG_DEBUG_SMI is set, smm will die() with "SMM Handler caused a stack overflow" (which is quite possibly a false positive) on x86 platforms.