How can I do when MMU window can not display in ARM development studio?

I select "Follow system" to 'Non-Secure EL2(AArch64)', but MMU window still can not display table contents.

The current CPU is Non-Secure EL2 (AArch64) as shown in the bottom left corner of the IDE, why do we still need to access SCR_EL3.RW?

Due to secure protection, I can't enable secure debug currently. I'll try to enable it and test MMU display window. But in previous DS-5 tool, non-secure MMU table can display without secure debug enable.

Thanks for your attention!

Best Regards,

Yan

I select "Follow system" to 'Non-Secure EL2(AArch64)', but MMU window still can not display table contents.

The current CPU is Non-Secure EL2 (AArch64) as shown in the bottom left corner of the IDE, why do we still need to access SCR_EL3.RW?

Due to secure protection, I can't enable secure debug currently. I'll try to enable it and test MMU display window. But in previous DS-5 tool, non-secure MMU table can display without secure debug enable.

Thanks for your attention!

Best Regards,

Yan

Thanks for testing.  Sorry that "Follow system" to "Non-Secure EL2 (AArch64)" didn't work.

Yes, I think the issue is caused by secure debug being disabled.  Please let us know if it works when enabled.

Stephen

Hi，

When secure debug is enabled, MMU table can display.

However, not every board's secure debug can be enabled, so it is still a problem when non-secure world need check MMU table.

Thanks for your attention!

Yan