Hi,
Here is a short summary of what we discussed. Feel free to add your comments.
Project KPI to measure Sizes:
1. Secure [S] Image size of the profile Small Timings:
1. Secure service access time = turnover time of empty secure service
2. Secure interrupt latency
3. Non-secure interrupt latency in
a. the best case
b. the worst case. Difficult but can be approximated by: best case + longest interrupt blocking time on S side.
4. Booting time = the time from MCU reset to NS main() start. All measurement shall be duplicated for IPC and SFN (aka Library) modes.
Documentation
* Local documentation is useful and shall be kept but skipping documentation generation code by default I good idea to fasten a common build case. Flash access from NS side
* A flash shared access between S and NS is a real need. A "Flash Service" partition is interesting approach to grant NS side access to Flash device, keeping overall security on S side. Thanks, Anton
From: David Wang David.Wang@arm.com Sent: Thursday, June 10, 2021 2:17 AM To: tf-m@lists.trustedfirmware.org; Anton Komlev Anton.Komlev@arm.com Cc: nd nd@arm.com Subject: RE: Technical Forum call - June 10
Hi Anton, If it's open agenda, I would like to take this opportunity to get some inputs about the use scenarios and solutions for sharing flash controller (or even other HW resources) between S and NS. For example, the security/concurrency concerns/issues etc. Thanks.
Regards, David Wang
From: TF-M <tf-m-bounces@lists.trustedfirmware.orgmailto:tf-m-bounces@lists.trustedfirmware.org> On Behalf Of Anton Komlev via TF-M Sent: Wednesday, June 9, 2021 11:03 PM To: tf-m@lists.trustedfirmware.orgmailto:tf-m@lists.trustedfirmware.org Cc: nd <nd@arm.commailto:nd@arm.com> Subject: Re: [TF-M] Technical Forum call - June 10
Hi, We have an open agenda for the forum tomorrow. Let's use that time to review any ongoing items and discuss open questions. To start:
1. What kind of project measurements would be interesting for collection and ways for benchmarking. * Booting time * PSA service access time * ... anything else ?
Regards and please bring your topic, Anton
From: TF-M <tf-m-bounces@lists.trustedfirmware.orgmailto:tf-m-bounces@lists.trustedfirmware.org> On Behalf Of Anton Komlev via TF-M Sent: Wednesday, June 2, 2021 11:26 AM To: tf-m@lists.trustedfirmware.orgmailto:tf-m@lists.trustedfirmware.org Cc: nd <nd@arm.commailto:nd@arm.com> Subject: [TF-M] Technical Forum call - June 10
Hi, The next Technical Forum is planned on Thursday, June 10, 15:00-16:00 UTC (US time zone). Please reply on this email with your proposals for agenda topics.
Recording and slides of previous meetings are here: https://www.trustedfirmware.org/meetings/tf-m-technical-forum/
Best regards, Anton