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Is the functionality of TZC400 working on ARMv8 FVP base model?

sabrina

Hi experts,

I have tried to configure the attribute of one memory region not able to be write in secure world and then try to write data into this region.

What I expect is that there will be an exception raising after write data into this region. But what I saw is that the write data successfully and the read data successfully.

It could be that the data already is in the cache when reading, so I have tried using "device memory" - GIC mapped address as memory region. There was still no exception raising.

I'm wondering if the functionality of TZC400 is ready on ARMv8 FVP base model.

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  • 0 Arm Employee Badge

    Hi Sabrina,

    Just want to clarify if you meant ".. one memory region not able to be write in non-secure world" ?

    If yes it should work.

    Which FVP model are you using ? Try passing the following argument for

    1.  AEMv8 base: -C bp.secure_memory=1

    2. Foundation: --secure-memory

    I had tried on one of the secure timer block and it did raise exception.

    Regards,

    Sudeep

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  • 0 Arm Employee Badge

    Hi Sabrina,

    Just want to clarify if you meant ".. one memory region not able to be write in non-secure world" ?

    If yes it should work.

    Which FVP model are you using ? Try passing the following argument for

    1.  AEMv8 base: -C bp.secure_memory=1

    2. Foundation: --secure-memory

    I had tried on one of the secure timer block and it did raise exception.

    Regards,

    Sudeep

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