TF-A October 2023

tf-a@lists.trustedfirmware.org

17 participants
14 discussions

Canceled event with note: TF-A Tech Forum @ Thu Oct 5, 2023 5pm - 6pm (CEST) (tf-a@lists.trustedfirmware.org)

by olivier.deprez＠arm.com

This event has been canceled with a note: "Hi, Cancelling as no topic proposed for this instance. Regards, Olivier." TF-A Tech Forum Thursday Oct 5, 2023 ⋅ 5pm – 6pm Central European Time - Paris We run an open technical forum call for anyone to participate and it is not restricted to Trusted Firmware project members. It will operate under the guidance of the TF TSC. Feel free to forward this invite to colleagues. Invites are via the TF-A mailing list and also published on the Trusted Firmware website. Details are here: https://www.trustedfirmware.org/meetings/tf-a-technical-forum/Tr… Firmware is inviting you to a scheduled Zoom meeting.Join Zoom Meetinghttps://zoom.us/j/9159704974Meeting ID: 915 970 4974One tap mobile+16465588656,,9159704974# US (New York)+16699009128,,9159704974# US (San Jose)Dial by your location        +1 646 558 8656 US (New York)        +1 669 900 9128 US (San Jose)        877 853 5247 US Toll-free        888 788 0099 US Toll-freeMeeting ID: 915 970 4974Find your local number: https://zoom.us/u/ad27hc6t7h   Guests marek.bykowski(a)gmail.com okash.khawaja(a)gmail.com tf-a(a)lists.trustedfirmware.org ~~//~~ Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this email because you are an attendee on the event. To stop receiving future updates for this event, decline this event. Forwarding this invitation could allow any recipient to send a response to the organizer, be added to the guest list, invite others regardless of their own invitation status, or modify your RSVP. Learn more https://support.google.com/calendar/answer/37135#forwarding

1 year, 1 month

Deprecated platforms in TF-A

by Manish Badarkhe

Hi All, We are currently in the process of preparing for an upcoming release v2.10 [1] and are actively seeking out any deprecated platforms within the TF-A source code. We kindly request all platform owners and contributors to dedicate some time to review the TF-A source code for any platforms that may have been deprecated. If you encounter any platforms that require deprecation but have not yet been labelled as such, we kindly request that you contribute by submitting the required changes to officially mark them as deprecated. You can follow the example provided in [2]. Thank you for your cooperation. [1]: https://trustedfirmware-a.readthedocs.io/en/latest/about/release-informatio… [2]: https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/17710 Regards, Manish Badarkhe

1 year, 1 month

#ifdef PLAT_XLAT_TABLES_DYNAMIC in xlat_tables_context.c

by Nagal, Amit

Hi , When I grep for PLAT_XLAT_TABLES_DYNAMIC in /lib/lib/xlat_tables_v2/ , I see most references for PLAT_XLAT_TABLES_DYNAMIC are enclosed in #if directive. Is there any specific reason why only below mentioned reference for PLAT_XLAT_TABLES_DYNAMIC is covered with #ifdef and not under #if . https://github.com/Xilinx/arm-trusted-firmware/blob/master/lib/xlat_tables_… #ifdef PLAT_XLAT_TABLES_DYNAMIC #define MAX_PHYS_ADDR tf_xlat_ctx.pa_max_address #else #define MAX_PHYS_ADDR tf_xlat_ctx.max_pa #endif Regards Amit

1 year, 1 month

Platforms without NS-EL2 component

by Manish Pandey2

Hi, I am writing this email to find out any legacy platforms supports in TF-A (upstream or downstream) which does not have any NS-EL2 component running. Because NS-EL2 is present but unused EL3 also need to do a minimal initialization of EL2. The side effect of this is, TF-A currently has extra code in generic path (e.g. cm_prepare_el3_exit() ) to cater for these platforms which is not required for most others. The most likely reason why TF-A introduced support for systems without NS-EL2 was because of UEFI implementation for Windows which didn't initialize NS-EL2 properly. Given that the UEFI spec has said "Use the highest 64 bit non secure privilege level available" for a long time now we are safe to assume that any UEFI implementation will handover to windows at NS-EL2. (similar to Linux) Considering that there are very few platforms which need this code and to keep backward compatibility, we propose to introduce a macro like "INIT_UNUSED_NS_EL2" and guard the code under this[1]. Keep this flag default disabled and get rid of it( along with code) altogether in next couple of releases, if we are certain that none of the platforms using it. Please let me know if you are aware of any such platform configuration. [1] https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/22716 Thanks Manish

1 year, 1 month

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TF-A October 2023