Change in coreboot[master]: security/intel/txt: Allow to set TXT BIOS Data Region version

[Michał Żygowski (Code Review)]

Attention is currently required from: Michał Żygowski.
Hello build bot (Jenkins), Angel Pons, Patrick Rudolph,

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

https://review.coreboot.org/c/coreboot/+/59513

to look at the new patch set (#3).

Change subject: security/intel/txt: Allow to set TXT BIOS Data Region version
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security/intel/txt: Allow to set TXT BIOS Data Region version

TXT BIOS Data region version is checked by Trusted Boot code. Older
versions of TBoot (e.g. 1.8.2) may refuse to set up the MLE if BDR
version is not known. Provide an option to set the BDR version in
case an older TBoot code is used. This is very useful for platforms
with TPM 1.2.

TEST=Set BDR version to 4 and successfully boot QubesOS 4.0 with
TBoot 1.8.2 on Dell OptiPlex 9010

Signed-off-by: Michał Żygowski 
Change-Id: Ic2550bd4008559bd47de9e35f8b1c7b52e6e0f5f
---
M src/security/intel/txt/Kconfig
M src/security/intel/txt/ramstage.c
2 files changed, 13 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/13/59513/3