This code ought not to run if ME is disabled. It also prohibits
writing to some GMCH regs like GGC bit1.
Intel 4 Series Chipset Family datasheet refers to this as
"ME stolen Memory lock" without actually describing this
functionality.
BUG=none
BRANCH=none
TEST=none
Change-Id: I2515e965aafbac95e78eef9a42ce10c302c892d7
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: ddc8828697
Original-Change-Id: Iaa8646e535e13c44c010ccd434a5af954cf7dfbc
Original-Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Original-Reviewed-on: https://review.coreboot.org/18513
Original-Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Original-Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://chromium-review.googlesource.com/501147
4adf1480ee