[coreboot] (help me to get better) flashrom support for thinkpads with locked down opcodes

Stefan Reinauer stefan.reinauer at coreboot.org
Mon Aug 27 06:18:53 CEST 2012

* Stefan Tauner <stefan.tauner at student.tuwien.ac.at> [120826 21:31]:
> As you probably all know the procedure to relieve the coreboot-
> supported thinkpads from their proprietary firmware is not completely
> trivial[1]. The main problem is that the vendor has locked down the
> available SPI opcodes that we are allowed to use and this hinders
> current flashrom to identify the flash chip.

Have you guys considered SMI cache poisoning attacks to work around
those restrictions?

It would pretty much be a per bios version or per machine based
workaround, but if we can provide known good coreboot images, that might
be attractive for people out there...


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