Stefan Reinauer ([email protected]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1798
-gerrit commit 5a369c91ac7b0cf957e23132ccab22437e57a933 Author: Stefan Reinauer <[email protected]> Date: Wed Oct 31 17:30:13 2012 -0700 Add Kconfig option to lock/unlock ME firmware during build For reasons of security and testing we want to be able to enable/disable ME section locking through a config option. Change-Id: I341c577cdae86be62c0e3d32bbd6b3333c004a5f Signed-off-by: Stefan Reinauer <[email protected]> --- src/southbridge/intel/bd82x6x/Kconfig | 13 +++++++++++++ src/southbridge/intel/bd82x6x/Makefile.inc | 9 +++++++++ 2 files changed, 22 insertions(+) diff --git a/src/southbridge/intel/bd82x6x/Kconfig b/src/southbridge/intel/bd82x6x/Kconfig index 7634b80..e330fb4 100644 --- a/src/southbridge/intel/bd82x6x/Kconfig +++ b/src/southbridge/intel/bd82x6x/Kconfig @@ -58,4 +58,17 @@ config HPET_MIN_TICKS hex default 0x80 +config LOCK_MANAGEMENT_ENGINE + bool "Lock Management Engine section" + default n + help + The Intel Management Engine supports preventing write accesses + from the host to the Management Engine section in the firmware + descriptor. If the ME 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 firmware is no longer going to change. + + If unsure, say N. + endif diff --git a/src/southbridge/intel/bd82x6x/Makefile.inc b/src/southbridge/intel/bd82x6x/Makefile.inc index eca3d9e..7fd6ca8 100644 --- a/src/southbridge/intel/bd82x6x/Makefile.inc +++ b/src/southbridge/intel/bd82x6x/Makefile.inc @@ -60,5 +60,14 @@ bd82x6x_add_me: $(obj)/coreboot.pre $(IFDTOOL) -i ME:3rdparty/mainboard/$(MAINBOARDDIR)/me.bin \ $(obj)/coreboot.pre mv $(obj)/coreboot.pre.new $(obj)/coreboot.pre +ifeq ($(CONFIG_LOCK_MANAGEMENT_ENGINE),y) + printf " IFDTOOL Locking Management Engine\n" + $(objutil)/ifdtool/ifdtool -l $(obj)/coreboot.pre + mv $(obj)/coreboot.pre.new $(obj)/coreboot.pre +else + printf " IFDTOOL Unlocking Management Engine\n" + $(objutil)/ifdtool/ifdtool -u $(obj)/coreboot.pre + mv $(obj)/coreboot.pre.new $(obj)/coreboot.pre +endif PHONY += bd82x6x_add_me -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
