TF-M December 2020

tf-m@lists.trustedfirmware.org

15 participants
33 discussions

Re: [TF-M] Externally override flash layout and pin configurations (out-of-tree platforms?)

by Rønningstad, Øyvind

I've created a proof of concept for allowing out-of-tree platforms here: https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/7301 It was simpler than I had thought :) Øyvind From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Ken Liu via TF-M Sent: Thursday, November 26, 2020 07:57 To: tf-m(a)lists.trustedfirmware.org Cc: nd <nd(a)arm.com> Subject: Re: [TF-M] Externally override flash layout and pin configurations (out-of-tree platforms?) Hi, In the ideal case with HAL API, the platform itself can decide which variant's layout to be applied, selected by build system switches or just some header files. Because SPM could get what it needed by HAL API run-time. It can be mostly done inside the platform folder if one platform has the variants management already. Others please give inputs as this is a very useful topic, we can list down the problem we met during integration first. BR /Ken From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Rønningstad, Øyvind via TF-M Sent: Thursday, November 26, 2020 3:47 AM To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org> Cc: Rasmussen, Torsten <Torsten.Rasmussen(a)nordicsemi.no<mailto:Torsten.Rasmussen@nordicsemi.no>> Subject: [TF-M] Externally override flash layout and pin configurations (out-of-tree platforms?) Hi all In our work integrating TFM into Zephyr and the nRF Connect SDK, it's apparent that the integration would be a lot smoother if we could specify TFM's flash layout externally. Looking into it a bit, I came up with a draft proposal here: https://github.com/zephyrproject-rtos/trusted-firmware-m/pull/18/files<https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.co…> We could just modify our own platforms to this and be happy, but I'm wondering if there would be interest in standardizing something. Now, a related problem is: How can we make it easier to add multiple boards based on a single chip. For the Nordic platforms we've already separated the chip-specific code (nRF9160/nRF5340) from the board specific code (DK/PDK), and for the boards, it really boils down to pin configurations. We could allow to specify pins via Cmake instead, to easily allow users to support their production PCBs. But (this was brought up in the above PR) we can also solve both problems by adding support for out-of-tree platforms. For example, allow TFM to be built like so: cmake -DTFM_PLATFORM=../../../../my_custom_board ... This would probably be less work that designing a new interface for overriding flash layouts and pin configurations. What are your thoughts? BR, Øyvind Rønningstad

4 years

Review request for adding External Trusted Secure Storage service in TF-M

by Edward Yang

Hi everyone, Please help review the following design proposal of adding External Trusted Secure Storage service in TF-M,any comments and suggestions will be appreciated. https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/7295 Best Regards, Poppy Wu Macronix Microelectronics (Suzhou) Co.,Ltd http://www.mxic.com.cn ======================================================== ============================================================================ CONFIDENTIALITY NOTE: This e-mail and any attachments may contain confidential information and/or personal data, which is protected by applicable laws. Please be reminded that duplication, disclosure, distribution, or use of this e-mail (and/or its attachments) or any part thereof is prohibited. If you receive this e-mail in error, please notify us immediately and delete this mail as well as its attachment(s) from your system. In addition, please be informed that collection, processing, and/or use of personal data is prohibited unless expressly permitted by personal data protection laws. Thank you for your attention and cooperation. Macronix International Co., Ltd. =====================================================================

4 years

Review request for adding External Trusted Secure Storage service in TF-M

by Edward Yang

4 years

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TF-M December 2020