[coreboot-gerrit] [S] Change in coreboot[master]: soc/amd/smm: Sanity check the SMM TSEG size

[Bao Zheng (Code Review)]

Attention is currently required from: Bao Zheng, Felix Held, Fred Reitberger, Himanshu Sahdev, Jason Glenesk, Matt DeVillier, Paul Menzel, Raul Rangel, Zheng Bao.

Hello Arthur Heymans, Felix Held, Fred Reitberger, Himanshu Sahdev, Jason Glenesk, Matt DeVillier, Paul Menzel, Raul Rangel, Zheng Bao, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/75405?usp=email

to look at the new patch set (#7).

Change subject: soc/amd/smm: Sanity check the SMM TSEG size
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soc/amd/smm: Sanity check the SMM TSEG size

As per AMD64 Architecture Programmer's Manual, section 10.2.5 SMRAM
Protected Areas:
The TSEG range must be aligned to a 128 Kbyte boundary and the minimum
TSEG size is 128 Kbytes.

The SMM TSEG size should be less than SMM reserved size.

AMD TSEG mask works like an MTRR. It needs to be aligned to it's size
and it's size needs to be a power of 2.

Change-Id: Ic4f557c7b77db6fc5ab2783ca4e2ebe7a4476e85
Signed-off-by: Zheng Bao 
---
M src/soc/amd/common/block/include/amdblocks/smm.h
1 file changed, 12 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/05/75405/7