[coreboot-gerrit] [S] Change in coreboot[main]: soc/intel/cannonlake: Let coreboot lock MSR_IA32_DEBUG_INTERFACE

[Filip Lewiński (Code Review)]

Attention is currently required from: Felix Singer, Intel coreboot Reviewers, Jérémy Compostella, Krystian Hebel, Martin Roth, Michał Kopeć, Michał Żygowski, Paul Menzel.

Filip Lewiński has uploaded a new patch set (#8) to the change originally created by Michał Żygowski. ( https://review.coreboot.org/c/coreboot/+/83730?usp=email )

Change subject: soc/intel/cannonlake: Let coreboot lock MSR_IA32_DEBUG_INTERFACE
......................................................................

soc/intel/cannonlake: Let coreboot lock MSR_IA32_DEBUG_INTERFACE

Intel TXT requires the debug interface to be disabled. There is no
way to program the MSR_IA32_DEBUG_INTERFACE using FSP as needed, so
let coreboot handle it.

TEST=Boot Linux with tboot on Protectli VP4670 with Intel TXT enabled

Change-Id: I7ed4382bbe68f03e8eca151245c13928609f434f
Signed-off-by: Michał Żygowski 
---
M src/include/cpu/intel/msr.h
M src/soc/intel/cannonlake/fsp_params.c
M src/soc/intel/cannonlake/lockdown.c
3 files changed, 29 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/30/83730/8