Dear TF-M Community,
I have a question regarding a specific use case involving interrupt handling and domain preemption in a TrustZone-enabled system using TF-M.
In the scenario where the processor is executing within a Secure user context (e.g., during Secure Partition execution), is it possible for an interrupt assigned to the Non-Secure domain to pre-empt this Secure execution?
* Does TF-M support such preemption by default? * If not supported out-of-the-box, what modifications or configuration changes would be required within TF-M to enable this behavior?
Any guidance on how TF-M manages interrupt priority and security attribution in this context would be greatly appreciated.
Best regards,
Waqar Ali
Waqar Ali Tahir
(He / Him / His)
Embedded SW Engineer
Phone: +433124 299160
Email: mailto:waqar.tahir@nxp.com waqar.tahir@nxp.com
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