BootConfig

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Installed into the first 0x4000 sector of the eMMC storage's BCPKG2 partitions, "BootConfig" contains data used to configure TrustZone/OS behaviors.

BootConfig is normally all-zero for retail units, however TrustZone additionally sets the loaded configuration to all-zero when running on a retail unit anyway.

Format

Despite having 0x4000 for storage, the actual loaded BootConfig is only 0x640 bytes, with the following format:

Offset Size Description
0x0 0x200 Unsigned Configuration
0x200 0x100 RSA-PSS Signature
0x300 0x100 Signed Configuration
0x400 0x240 Reserved