[L] Change in coreboot[main]: mb/qemu-q35/smihandler.c: add support for SMIs on QEMU

[Martin L Roth (Code Review)]

Attention is currently required from: Arthur Heymans, Krystian Hebel, Michał Kopeć, Michał Żygowski, Patrick Rudolph, Paul Menzel.

Martin L Roth has posted comments on this change by Krystian Hebel. ( https://review.coreboot.org/c/coreboot/+/82558?usp=email )

Change subject: mb/qemu-q35/smihandler.c: add support for SMIs on QEMU
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Patch Set 10:

(2 comments)

Patchset:

PS2:
> Moved the implementation to board directory. This also allowed me to fix SMM for qemu-system-i386.

Done

File src/mainboard/emulation/qemu-q35/smihandler.c:

https://review.coreboot.org/c/coreboot/+/82558/comment/2ff1248f_2eeddb5b?usp... :
PS9, Line 20: It is
            :  *   impossible to check if SMI was generated by write to APMC port that way.
> Technically possible, but not that simple. […]

Acknowledged