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Some spaces/devices

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Jonathan Herrewijnen 2024-09-05 20:55:39 +02:00
parent c03af09de2
commit c8dd132ef9
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documentation/source/BootROM_8890/notes.rst
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@ -18,3 +18,11 @@ What is interesting about the ROM is that it starts by checking MPIDR_EL1 regist
Week 35 - 2024
===============
After booting BL31, the MMU seems to be set up, and we're unable to do get any data off of spaces we're not 'allowed' to access. Patching the if-statement at 0x020244e8, disables the bit that says that the MMU is setup, but booting into recovery is possible (meaning the MMU is setup). Additionally, the memory at 0x02035600 is still not dumpable. At 0x02048000 is still accessible.
Weird space found at 0x105c2400. Seems to contain references to usb buffer (about 48-64 bytes).
Also space at 0x020307f0
.. code-block:: python
self.cd.memdump_region(0x105c2400, 0x40).hex()
'0f0f00000f0008002100000000000000ffffffffffffffffffffffffffffffff0f0f00000f0008002101000000000000ffffffffffffffffffffffffffffffff'