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Although the MeP architecture documentations specify that with EVM=0 the reset/NMI vector base is at 0x00000000, it is observed that the vector base is actually at 0x00040000. However, EVA/IVA still works as expected when EVM=1. Both secure_kernel and second_loader set EVM=0 at the start. This is likely modified hardware behavior and the vector base remapping might be done when the bootrom is unmapped.


See Physical_Memory#cmep for physical memory mapping.

See F00D Keyring Regs.