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path: root/util/me_cleaner/me_cleaner.py
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2018-11-17treewide: use /usr/bin/env where appropriateYegor Timoshenko
Some Unix systems (GuixSD, NixOS) do not install programs like Bash and Python to /usr/bin, and /usr/bin/env has to be used to locate these instead. Change-Id: I7546bcb881c532adc984577ecb0ee2ec4f2efe00 Signed-off-by: Yegor Timoshenko <yegortimoshenko@riseup.net> Reviewed-on: https://review.coreboot.org/28953 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-04-06util/me_cleaner: Update to v1.2Nicola Corna
Changelog: * Add support for the HAP/AltMeDisable bit * Add support for selective partition removal * Fix the ME permission removal on gen. 3 * Add public key match * Print the compressed size of the Huffman modules on gen. 2 * Wipe the ME6 Ignition firmware images * Fix the removal of the last partition on ME6 * Various region size fixes * Add manpage * Add setup.py * Print the value of the HAP/AltMeDisable bit The output image should be identical, except for the platforms affected by bugs (ME 6.x, but it's not supported by coreboot and ME 11.x with the -d option, but it's not being used in our build process). Overall, nothing should change when it's used with the CONFIG_USE_ME_CLEANER option. Tested on a Lenovo X220 and Sapphire Pure Platinum H61. Change-Id: I3d5e0d9af0a36cc7476a964cf753914c2f3df9d2 Signed-off-by: Nicola Corna <nicola@corna.info> Reviewed-on: https://review.coreboot.org/25506 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2018-01-23util/*: Fix final newlines in scriptsAlex Thiessen
Some script files under the `util` directory have no final newline or multiple final newlines. This is fixed so that an adapted `util/lint/lint-extended-015-final-newlines` does not bark at them anymore. Change-Id: Icec08f1fc7ea837906653475b7f821aa1a143169 Signed-off-by: Alex Thiessen <alex.thiessen.de+coreboot@gmail.com> Reviewed-on: https://review.coreboot.org/23324 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2017-08-20util/me_cleaner: Pull the latest changes from upstreamNicola Corna
Relevant changes (commit 2e8761e): * Add an option to truncate the ME image file * Add full support for Skylake (ME 11) and following, including modules removal, truncation informations and partition relocation * Add two options to generate a shrinked ME image file and the corresponding descriptor with a modified flash layout * Update README.md * Bug fixes Also add a link to the usage guide in the Kconfig help. Change-Id: I690c5d558139f64f38babf3c0988b53834ba8b37 Signed-off-by: Nicola Corna <nicola@corna.info> Reviewed-on: https://review.coreboot.org/20915 Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2017-03-02util/me_cleaner: Pull the latest changes from upstreamNicola Corna
Relevant changes (commit 250b2ec): * Fix a bug for ME6 Ignition images. * Fix signature checking for ME11 and later. * Add command line arguments. * Add an option to relocate the FTPR partition to the top of the ME region, recovering most of the ME region space. * Print the image minimum size. * Add write boundary checks, to prevent writes on other regions in case of bugs. The new changes have been tested on multiple platforms by the me_cleaner users. They have been tested also on the author's X220T with coreboot, where the ME region has been shrinked up to 84 kB without any issue. Change-Id: I3bd6b4cba9f5eebc3cd4892dd9f188744a06c42b Signed-off-by: Nicola Corna <nicola@corna.info> Reviewed-on: https://review.coreboot.org/18473 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2017-01-25util: Add me_cleanerNicola Corna
me_cleaner is a tool to strip down Intel ME/TXE images by removing all the non-fundamental code, while keeping the ME/TXE image valid and suitable for booting the system. The remaining code (ROMP and BUP modules) is the one responsible for the very basic initialization of the ME/TXE subsystem and can't be removed. This tool exploits the fact that: * Each ME/TXE partition is signed individually and it is possible to remove both the partition and the signature. * The ME/TXE modules are not signed directly, instead they are hashed and the list of their hashes is hashed again and signed: this means that modifying a module doesn't invalidate the signature, but only the hash of that single module. * The modules hashes are checked only when the corresponding module needs to be executed. * The system can boot after the execution of the first module (BUP, inside the FTPR partition), even if the subsequent stages fail. Currently me_cleaner works on every Intel platform with Intel ME or Intel TXE with the following limitations: * Doesn't work when Intel Boot Guard is set in Verified Boot mode. * Doesn't fully work on Nehalem yet. * On Skylake and later generations, since the partitions' internal structure has changed, me_cleaner leaves intact the FTPR partition, removing all the the other partitions. This tool has been tested on multiple platforms and architectures by different users, and seems to be stable. The reports are available here: https://github.com/corna/me_cleaner/issues/3 A more in-depth description of me_cleaner is available here: https://github.com/corna/me_cleaner/wiki/How-does-it-work%3F Change-Id: I9013799e9adea0dea0775b9afe718de5fc4ca748 Signed-off-by: Nicola Corna <nicola@corna.info> Reviewed-on: https://review.coreboot.org/18203 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>