I think all is in the title.

When in secure, reading the SCR register with MRC will succeed. But in non secure state, the MRC fails and I don't get any undef or abort.

Is it my mistake here ? Or it can be "sensed" differently without crashing ?…

Hello,

I'm working on Raspberry PI2, ARMv7 and now specifically trying the secure modes.

I managed to get the PI start in secure state, then here I can set the SP for all the modes I intend to use in secure state, like IRQ, SVC, etc.

But I also would…