Intel Firmware Descriptor: Add Lock ME Kconfig question
Add the Kconfig question to allow the user to lock the ME section
using ifdtool.
Change-Id: I46018c3bc9df3e309aa3083d693cbebf00e18062
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: http://review.coreboot.org/10648
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/southbridge/intel/common/firmware/Kconfig b/src/southbridge/intel/common/firmware/Kconfig
index 8ad1fed..2767c0e 100644
--- a/src/southbridge/intel/common/firmware/Kconfig
+++ b/src/southbridge/intel/common/firmware/Kconfig
@@ -92,4 +92,18 @@
string
default ""
+config LOCK_MANAGEMENT_ENGINE
+ bool "Lock ME/TXE section"
+ depends on HAVE_ME_BIN
+ default n
+ help
+ The Intel Firmware Descriptor supports preventing write accesses
+ from the host to the ME or TXE section in the firmware
+ descriptor. If the section is locked, it can only be overwritten
+ with an external SPI flash programmer. You will want this if you
+ want to increase security of your ROM image once you are sure
+ that the ME/TXE firmware is no longer going to change.
+
+ If unsure, say N.
+
endif #INTEL_FIRMWARE