Hafnium November 2025

hafnium@lists.trustedfirmware.org

6 participants
5 discussions

by Junho Choi

Hello, I'm Junho Choi in Samsung S.LSI and I've been working on virtualization solution. I have some questions about Hafnium for Secure EL2 extension. (1) Why do you consider VHE as default option? (I saw it in arch_mm_init) According to Hafnium init sequence, has_vhe_support always returns true as long as ARM cores have support for VHE. Is there any requirements that Hafnium should support VHE? (2) TF-A's SPMD has only forwarded svc_on_finish and svc_off of PSCI. Why doesn't SPMD forward other commands such as CPU_SUSPEND? In case of the CPU_SUSPEND, secure EL2 or SP may need to know when physcial CPU turns off. (3) Why do you set HCR_EL2.VI and VF to handle virtual interrupt? I think we have an another method to use List registers (ICH_LRn_EL2) to inject virtual interrup to guest (SP). I'm not sure whether asking you is proper or not. If you're not the right person, please forward this mail to the right person. Thanks! Best Regards, Junho Choi [cid:cafe_image_0@s-core.co.kr] [update?userid=junhosj.choi&do=bWFpbElEPTIwMjUxMTE4MDU1MTQ0ZXBjbXMycDUy MjBlZTFkOGFiNGIxNGRkYzQ1MTNiN2E2ZTA3NzM2MyZyZWNpcGllbnRBZGRyZXNzPWhhZm5 pdW1AbGlzdHMudHJ1c3RlZGZpcm13YXJlLm9yZw__]

1 day, 2 hours

Invitation: TF-A Tech Forum - Hafnium future looking improvements @ Thu Nov 13, 2025 12pm - 1pm (GMT+1) (hafnium@lists.trustedfirmware.org)

by Olivier Deprez

TF-A Tech Forum - Hafnium future looking improvements Thursday Nov 13, 2025 ⋅ 12pm – 1pm Central European Time - Paris Location https://linaro-org.zoom.us/j/93557863987?pwd=56a1l8cBnetDTZ6eazHGaE1Ctk4W34… https://www.google.com/url?q=https%3A%2F%2Flinaro-org.zoom.us%2Fj%2F9355786… Hi, This is a one off session for a partner to present coming improvements related to Hafnium project. Apologies for the meeting time not accommodating people in US timezones. We'll record the session and publish in the TF-A tech forum page as usual. Regards,Olivier.Trusted Firmware is inviting you to a scheduled Zoom meeting.Please download and import the following iCalendar (.ics) files to your calendar system.Weekly: https://linaro-org.zoom.us/meeting/tJcocu6gqDgjEtOkyBhSQauR1sUyFwIcNKLa/ics… Zoom Meetinghttps://linaro-org.zoom.us/j/93557863987?pwd=56a1l8cBnetDTZ6eazHGaE1Ctk4W34.1Meeting ID: 935 5786 3987Passcode: 939141---One tap mobile+12532158782,,93557863987# US (Tacoma)+13017158592,,93557863987# US (Washington DC)---Dial by your location• +1 253 215 8782 US (Tacoma)• +1 301 715 8592 US (Washington DC)• +1 305 224 1968 US• +1 309 205 3325 US• +1 312 626 6799 US (Chicago)• +1 346 248 7799 US (Houston)• +1 360 209 5623 US• +1 386 347 5053 US• +1 507 473 4847 US• +1 564 217 2000 US• +1 646 558 8656 US (New York)• +1 646 931 3860 US• +1 669 444 9171 US• +1 669 900 9128 US (San Jose)• +1 689 278 1000 US• +1 719 359 4580 US• +1 253 205 0468 US• 833 548 0276 US Toll-free• 833 548 0282 US Toll-free• 833 928 4608 US Toll-free• 833 928 4609 US Toll-free• 833 928 4610 US Toll-free• 877 853 5247 US Toll-free• 888 788 0099 US Toll-freeMeeting ID: 935 5786 3987Find your local number: https://linaro-org.zoom.us/u/adoz9mILli Reply for hafnium(a)lists.trustedfirmware.org and view more details https://calendar.google.com/calendar/event?action=VIEW&eid=MDdmMGs0NjBkcW5q… Your attendance is optional. ~~//~~ Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this email because you are an attendee on the 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

4 days, 6 hours

AI Policy - Guidance on AI-assisted contributions

by Shaun Longhorn

All, Please be aware that today we have published our AI policy with Guidance on AI-assisted contributions. See the full details here: https://www.trustedfirmware.org/aipolicy/ Should you have any questions feel free to raise them. Thanks, Shaun Community Manager

1 week

Firmware-A v2.12 release code freeze notification

by Govindraj Raja

Hi All, The next release of the Firmware-A bundle of projects tagged v2.12 has an expected code freeze date of Nov, 8th 2024. Refer to the release cadence section from TF-A documentation (https://trustedfirmware-a.readthedocs.io/en/latest/about/release-informatio…). Closing out the release takes around 6-10 working days after the code freeze. v2.12 release preparation tasks start from now. We want to ensure that planned feature patches for the release are submitted in good time for the review process to conclude. As a kind recommendation and a matter of sharing CI resources, please launch CI jobs with care e.g.: -For simple platform, docs changes, or one liners, use Allow-CI+1 label (no need for a full Allow-CI+2 run). -For large patch stacks use Allow-CI+2 at top of the patch stack (and if required few individual Allow+CI+1 labels in the middle of the patch stack). -Carefully analyze results and fix the change if required, before launching new jobs on the same change. -If after issuing a Allow-CI+1 or Allow-CI+2 label a Build start notice is not added as a gerrit comment on the patch right away please be patient as under heavy load CI jobs can be queued and in extreme conditions it can be over an hour before the Build start notice is issued. Issuing another Allow-CI+1 or Allow-CI+2 label will just result in an additional job being queued. -- Thanks, Govindraj R

1 week, 2 days

Gerrit scheduled maintenance: 8th November 8-12 UTC

by Saheer Babu

Hi All, We will be performing maintenance activity on review.trustedfirmware.org and service will be unavailable on 8th November between 8 AM-11 AM UTC. Best regards, Saheer

1 week, 4 days

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Hafnium November 2025