Hi Kevin,

So, platforms without internal flash memory, required by Internal Trusted Storage, may apply only for PSA L1. Right?

Thank you for your clarification, Andrej Butok

-----Original Message----- From: Kevin Peng (Arm Technology China) Kevin.Peng@arm.com Sent: Thursday, November 28, 2019 5:14 AM To: Andrej Butok andrey.butok@nxp.com; tf-m@lists.trustedfirmware.org Cc: nd nd@arm.com Subject: RE: [TF-M] PSA Certification without PS?

A quick information: Internal Trusted Storage is mandatory by PSA for isolation level 2 and 3.

Best Regards, Kevin

-----Original Message----- From: TF-M tf-m-bounces@lists.trustedfirmware.org On Behalf Of Andrej Butok via TF-M Sent: Wednesday, November 27, 2019 7:32 PM To: tf-m@lists.trustedfirmware.org Subject: [TF-M] PSA Certification without PS?

Hello,

Most probably, we will port TFM to a platform with TZ and external flash, BUT without internal flash. Is it possible to certify it for PSA L1 & L2 & Dev API, without Internal Trusted Storage service and its API? Do you see any issue?

Thanks Andrej Butok