* Matthew Garrett: >> Would it be possible to have a signed bootloader that allows booting >> Win8 from within the secure environment, or it could exit the secure >> environment and run unsigned grub? > > What would stop the unsigned grub from installing a firmware hook that > lies about whether or not Secure Boot is enabled, and then booting > Windows?
Windows would not have access to the product key because it is stored in a variable without EFI_VARIABLE_RUNTIME_ACCESS, so WGA and other checks will fail, and the user will notice. (Not sure if it is implemented this way, my test machine lost the firmware-embedded product key after the mainboard was replaced.) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
