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Monitor stack pointer configuration in non secure mode

Note: This was originally posted on 28th December 2011 at http://forums.arm.com

Hi

Please help me to understand whether the monitor stack pointer has to be configured in the non secure mode in the boot sequence.
I understand that all the other stack pointers(usr, svc, fiq ,irq ) has to be configured for the non secure area.

But should i configure the monitor stack pointer also in non secure mode????
Please help

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something wrong over 12 years ago

Note: This was originally posted on 31st December 2011 at http://forums.arm.com

monitor mode SP is banked. That means you can only configure it in monitor mode.
A only entry is boot up.When booting,the arm is in secure mode,you must install your monitor code before you return non-secure mode.
Otherwise, you can do nothing in secure mode.
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something wrong over 12 years ago

Note: This was originally posted on 31st December 2011 at http://forums.arm.com

monitor mode SP is banked. That means you can only configure it in monitor mode.
A only entry is boot up.When booting,the arm is in secure mode,you must install your monitor code before you return non-secure mode.
Otherwise, you can do nothing in secure mode.
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Vote up 0 Vote down

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