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sb/intel/common/firmware: Add Intel ME/TXE firmware check 

Ensure that the provided ME/TXE firmware is valid, using the
check capabilities of me_cleaner.

me_cleaner checks that the fundamental partition is available and
it has a correct signature. The checks performed by me_cleaner
aren't exhaustive, but they should find at least whether the user
has provided an empty or corrupted firmware.

me_cleaner has been tested on all the ME (6-11.6) and TXE (1-3)
firmwares available here [1], and it hasn't reported any false
positive.

[1] http://www.win-raid.com/t832f39-Intel-Engine-Firmware-Repositories.html

Change-Id: Ie6ea3b4e637dca4097b9377bd0507e84c4e8f687
Signed-off-by: Nicola Corna <nicola@corna.info>
Reviewed-on: https://review.coreboot.org/18768
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
This commit is contained in:
Nicola Corna 2017-03-10 11:27:39 +01:00 committed by Martin Roth
parent 8e079000dc
commit 16719ad143
2 changed files with 16 additions and 0 deletions
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13
src/southbridge/intel/common/firmware/Kconfig
View File

@ -58,6 +58,19 @@ config ME_BIN_PATH
default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/me.bin" default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/me.bin"
depends on HAVE_ME_BIN depends on HAVE_ME_BIN
config CHECK_ME
bool "Verify the integrity of the supplied ME/TXE firmware"
default y
depends on HAVE_ME_BIN && (NORTHBRIDGE_INTEL_NEHALEM || \
NORTHBRIDGE_INTEL_SANDYBRIDGE || \
NORTHBRIDGE_INTEL_IVYBRIDGE || NORTHBRIDGE_INTEL_HASWELL || \
SOC_INTEL_BROADWELL || SOC_INTEL_SKYLAKE || \
SOC_INTEL_BAYTRAIL || SOC_INTEL_BRASWELL)
help
Verify the integrity of the supplied Intel ME/TXE firmware before
proceeding with the build, in order to prevent an accidental loading
of a corrupted ME/TXE image.
config USE_ME_CLEANER config USE_ME_CLEANER
bool "Strip down the Intel ME/TXE firmware" bool "Strip down the Intel ME/TXE firmware"
depends on HAVE_ME_BIN && (NORTHBRIDGE_INTEL_SANDYBRIDGE || \ depends on HAVE_ME_BIN && (NORTHBRIDGE_INTEL_SANDYBRIDGE || \

3
src/southbridge/intel/common/firmware/Makefile.inc
View File

@ -58,6 +58,9 @@ ifeq ($(CONFIG_HAVE_ME_BIN),y)
$(obj)/coreboot.pre $(obj)/coreboot.pre
mv $(obj)/coreboot.pre.new $(obj)/coreboot.pre mv $(obj)/coreboot.pre.new $(obj)/coreboot.pre
endif endif
ifeq ($(CONFIG_CHECK_ME),y)
util/me_cleaner/me_cleaner.py -c $(obj)/coreboot.pre > /dev/null
endif
ifeq ($(CONFIG_USE_ME_CLEANER),y) ifeq ($(CONFIG_USE_ME_CLEANER),y)
printf " ME_CLEANER coreboot.pre\n" printf " ME_CLEANER coreboot.pre\n"
util/me_cleaner/me_cleaner.py $(obj)/coreboot.pre > \ util/me_cleaner/me_cleaner.py $(obj)/coreboot.pre > \