[coreboot-gerrit] Change in coreboot[master]: nb/intel/sandybridge: Read SPDs only once if measured boot is enabled

[Bill XIE (Code Review)]

Hello build bot (Jenkins), Paul Menzel, Patrick Rudolph,

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

https://review.coreboot.org/c/coreboot/+/39969

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

Change subject: nb/intel/sandybridge: Read SPDs only once if measured boot is enabled
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nb/intel/sandybridge: Read SPDs only once if measured boot is enabled

Without considering s3 resume, SPD may be used various times depending
on various conditions. If there is an SPD file (for memory chips
soldered on the mainboard) stored in CBFS and loaded various times,
PCR value may become inconsistent.

As mentioned in https://review.coreboot.org/c/coreboot/+/39906/ , in
order to avoid this, we could read SPD exactly once, and use the data
read out various times, when measured boot is enabled.

Change-Id: I02cad7e85d5e66fd9efb674e4dc9868233f6c233
Signed-off-by: Bill XIE 
---
M src/northbridge/intel/sandybridge/raminit.c
1 file changed, 29 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/69/39969/7