Hi Raghu,

Hafnium is going to be precisely the reference Secure EL2 SPM, collaboratively developed and hosted here by Trusted Firmware.org.

The project is finalising its migration as we speak (look at the relicensing commit here https://review.trustedfirmware.org/c/hafnium/hafnium/+/4616) and we'll soon create a blogpost to celebrate the final migration and its new life under Trusted Firmware.

The development teams are already working internally to achieve the above S-EL2 goal and they'll be posting the initial enablement patches and proto-branches as soon as the relicensing is complete, so to continue the development completely in the open and welcome partners' comments and help. They can certainly chime in here and provide their current status from a technical perspective.

The Normal world instance of Hafnium remains for now just as test payload for the PSA FF-A (SPCI) interface to help developing the Secure-EL2 SPM side of it, nothing more than that.

You can always refer to my Linaro presentation back in March that described the overall goal and direction for this enablement: https://connect.linaro.org/resources/ltd20/ltd20-200k/

Please note there will also be a TF-A Tech Forum session entirely focused on the Secure EL2 / Hafnium development topic quite soon (2nd July tentative), watch this space: https://www.trustedfirmware.org/meetings/tf-a-technical-forum/

So I'd strongly encourage to participate to it, to discuss live all the latest news.

Thanks Matteo

From: Hafnium hafnium-bounces@lists.trustedfirmware.org on behalf of Raghu K via Hafnium hafnium@lists.trustedfirmware.org Sent: 18 June 2020 22:59 To: hafnium@lists.trustedfirmware.org Subject: [Hafnium] Running hafnium in Secure-world

All,

Is it possible to run hafnium in SEL2? From looking at the code, it seems like hafnium currently only supports running in NS world. Is my understanding correct? I was wondering if/when there is a plan for secure world support in hafnium and if anybody is working on it.

Thanks Raghu