iMx7D HAB Event issue

[bobbychen197805]

I test the HAB boot on SPI-Flash on imx7d and get a HAB event as follows, can anyone tell me what it's means?

=> hab_status

Secure boot disabled

HAB Configuration: 0xf0, HAB State: 0x66

--------- HAB Event 1 -----------------
event data:
0xdb 0x00 0x14 0x42 0x33 0x22 0x33 0x00
0x00 0x00 0x00 0x0f 0x00 0x91 0x10 0x00
0x10 0x00 0x00 0x00

STS = HAB_FAILURE (0x33)
RSN = HAB_INV_ADDRESS (0x22)
CTX = HAB_CTX_TARGET (0x33)
ENG = HAB_ENG_ANY (0x00)

Based on the Comment in hab.h, this event logged in hab_rvt.check_target().

Reference to “3.3 Check Target” of “HAB4_API.pdf”:

  hab_status_t(* hab_rvt::check_target)(hab_target_t type, const void *start, size_t bytes)

I guess the parameters are: type -> 0x0f, *start -> 0x00911000, bytes -> 0x10000000 ?? Correct??

If it is correct, the size (0x10000000??) seems unreasonable.

Any suggestions?

[matias_larsson]

Hi Bobby,

We have the exact same problem with our i.MX7D, please check my thread https://community.nxp.com/thread/512577 . When I change the load address to DRAM, it works. Right now I don't have access to the CSF but I can say with confidence that the authenticated region length was the same regardless of load address. I will anyway verify my CSF once I get back and then reply to my own thread accordingly.

BR

Matias Larsson

[bobbychen197805]

Yes, but it only occurs on boot from SPI-Flash. It works fine on boot from mmc.

[Yuri · Accepted solution]

Hello,

 I've sent You some comments directly.

Regards,

Yuri.

[pirors]

Hi @Yuri  , can you please tell me the solution? I have a similar problem on i.MX6UL:
https://community.nxp.com/t5/i-MX-Processors/i-MX6UL-Secureboot-SPL-Verification/td-p/1760513

Thanks

[Yuri]

Hello,

  Length of 0x10000000 bytes means 256 MBytes - this is bigger that size of the OCRAM, but 

for DRAM it looks as workable. 

Regards,

Yuri.

[Yuri]

Hello,

   Yes, the size of 0x10000000 is very big for OCRAM.    

Have a great day,

Yuri

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[bobbychen197805]

Yes, but why? It looks like the behavior of bootrom. How to debug?