Change in coreboot[master]: cpu/intel/*: Set SMM SMRR code access check bit

[Arthur Heymans (Code Review)]

Attention is currently required from: Paul Menzel, Tim Wawrzynczak, Arthur Heymans.
Hello Paul Menzel, Tim Wawrzynczak, Lean Sheng Tan,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/63788

to look at the new patch set (#4).

Change subject: cpu/intel/*: Set SMM SMRR code access check bit
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cpu/intel/*: Set SMM SMRR code access check bit

This makes sure that only code in TSEG gets executed.
See section 34.17.1 "SMM Handler Code Access Control" in the 'Intel
64 and IA-32 Architectures Software Developer’s Manual'

Change-Id: I254fb348483d2873917cf8c94c8b60e6f2d2c4e7
Signed-off-by: Arthur Heymans 
---
M src/cpu/intel/haswell/finalize.c
M src/include/cpu/intel/smm_reloc.h
M src/soc/intel/common/block/smm/smihandler.c
M src/soc/intel/denverton_ns/smihandler.c
4 files changed, 45 insertions(+), 11 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/88/63788/4