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U-boot hab_status indicate warnings but no events are displayed

Question asked by Olle Sandberg on Nov 15, 2018
Latest reply on Nov 21, 2018 by igorpadykov

We're trying to implement secure boot through HAB here. We have signed the SPL/U-boot image through cst and burnt the fuses corresponding to the public key. Now when testing for HAB events with the u-boot command 'hab_status' it displays the following:

u-boot=> hab_status
Secure boot disabled

HAB Configuration: 0xf0, HAB State: 0x66

Missing in the output is the print 'No HAB Events Found!', but no HAB events are obviously displayed either.

Further debugging shows that the u-boot function 'hab_rvt_report_status()' returns HAB_WARNING (0x69).

 

So question is, what does this error/warning indicate, what might be wrong with our setup?

 

BR, Olle

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