TF-A August 2022

tf-a@lists.trustedfirmware.org

16 participants
14 discussions

by Shameerali Kolothum Thodi

Hi, I am trying to setup and run the RME support in TF-A, using the steps described here, https://trustedfirmware-a.readthedocs.io/en/latest/components/realm-managem… Build goes smoothly and when I launch FVP to run the RME tests using the command line mentioned in the link, the FVP terminal_0 seems to be get stuck at the below line, Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. NOTICE: Booting Trusted Firmware NOTICE: BL1: v2.7(debug):v2.7.0-235-g1631f9c75 NOTICE: BL1: Built : 11:44:37, Aug 22 2022 INFO: BL1: RAM 0x4035000 - 0x403c000 INFO: Loading image id=31 at address 0x4001010 INFO: Image id=31 loaded: 0x4001010 - 0x4001258 INFO: FCONF: Config file with image ID:31 loaded at address = 0x4001010 INFO: Loading image id=24 at address 0x4001300 INFO: Image id=24 loaded: 0x4001300 - 0x40015e4 INFO: FCONF: Config file with image ID:24 loaded at address = 0x4001300 INFO: BL1: Loading BL2 INFO: Loading image id=1 at address 0x4022000 INFO: Image id=1 loaded: 0x4022000 - 0x402cca1 NOTICE: BL1: Booting BL2 INFO: Entry point address = 0x4022000 INFO: SPSR = 0x3cd INFO: Configuring TrustZone Controller INFO: Total 6 regions set. Both the tf-a-tests.git and trusted-firmware-a.git are master branch and I am using the FVP_Base_RevC-2xAEMvA v11.18.16. I am totally new to this setup and maybe I am missing something here. Appreciate any help to get this resolved or tips to debug further. Thanks, Shameer

3 years

TF-A CI often fail due to missing rebase

by Julius Werner

Hi Glen, Don, and others, I've seen that a couple of TF-A patches I've been CCed on recently often seem to fail the CI run (Allow-CI+1) due to some strange build-time errors that don't seem to have anything to do with the patch at hand, and then one of the maintainers usually suggests that the patch needs a rebase, and the next CI run succeeds after that. Here are two recent examples: https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/16160 https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/14666 I was wondering if this is a known problem and if the CI can do anything here to mitigate it and save developers from this extra layer of friction? I'm not really sure why a rebase was necessary in either of these examples or why the CI run failed before it (unless the whole repository was in a bad state that didn't build, but since all submissions are guarded by the CI that shouldn't have been possible?). But I also don't really understand why the rebase would make a difference for the CI anyway. Generally, when a patch is submitted in Gerrit, that means it is cherry-picked onto the current master (regardless of what parent commit it was uploaded with). Since the CI is supposed to be a test run for submission, I would expect that the CI should also test a patch by cherry-picking it onto the current master, not just by building the patch on top of whatever parent commit it was uploaded with. But since rebasing a patch evidently seems to make a difference to the CI, that suggests that it's currently doing the latter strategy? Should that maybe be changed to the former to avoid these kinds of issues? If this isn't a known problem yet maybe it would be worth adding it to the JIRA? Thanks, Julius

3 years

A problem about TZASC in Armv9

by Chenxu Wang

Greetings, Armv9 introduces the RME and GPT technology. The GPT will separates the memory into unlimited regions with specific attributes. However, when I read the Armv9 manual and source code of TF-A, I still have some problems: 1. It seems that GPT is a feature on CPU, but not on a specific device (e.g.,TZC-400). Thus, will GPT conflict with TZC-400? I mean, when performing VA->PA on RAM, what is the detailed process if I enable both GPT and TZC-400? 2. I use the Arm FVP with Armv9 and RME extension enabled, and TF-A is "arm_cca" branch (with TF-A v2.5). Thus, in this version, what is the configuration for TZC-400 and GPT? Will it disable TZC-400 (I mean, GPT only) when booting Normal World? 3. Does GPT handle peripheral access (e.g., from DMA, GPU, Sensors... etc.)? I know TZC-400 will do it with NSAID. 4. Will GPT configures Read/Write/Execute features? All comments are valuable! SIncerely, WANG Chenxu

3 years

Canceled event with note: TF-A Tech Forum @ Thu Aug 11, 2022 4pm - 5pm (BST) (tf-a@lists.trustedfirmware.org)

by joanna.farley＠arm.com

This event has been canceled with a note: "Cancelling this week. I have no topics ready for presenting also many folks are out on summer holidays. " TF-A Tech Forum Thursday Aug 11, 2022 ⋅ 4pm – 5pm United Kingdom Time 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

3 years

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TF-A August 2022