On Sunday 18 May 2014 10:19:10 Jean Delvare wrote: > Please leave the list in Cc. > Sorry I forgot, but after that I resent original message to list. > On Sun, 18 May 2014 00:52:13 +0200, Pali Rohár wrote: > > Do you know if there is any way to extract BIOS SMM code? Or > > it is something which is not possible to do from OS/kernel > > side? > > If you download a BIOS update for your laptop from Dell, the > SMM code is certainly somewhere in the binary blob which gets > flashed to the EEPROM. But extracting that code from there > would certainly be challenge. Yes extracting it from bios flashing image was only idea which I got and I doubt I can do it... (specially when dell bios is compressed and image itself contains flashing program...) What I now found is this table of SMM commands: https://lkml.org/lkml/2008/12/18/44 So it looks like SMM data are in some NBSVC.MDM binary. Do you know something more about it? -- Pali Rohár pali.rohar@xxxxxxxxx
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