Hi,
Would like to restart this discussion. We had a Tech Forum for this topic and talked about this in detail. The slides would be available on the TF-A wiki [1]. Please review and provide feedback or comments to help better define the scope
of the problem/solution.
There was an inclination to move towards a long term support release of the firmware and the plan is to start a discussion page to get feedback from the community. I will publish more information soon.
-Varun
[1]
https://www.trustedfirmware.org/meetings/tf-a-technical-forum/
From: Varun Wadekar
Sent: Friday, June 12, 2020 10:42 AM
To: François Ozog <francois.ozog@linaro.org>
Cc: tf-a@lists.trustedfirmware.org
Subject: RE: [TF-A] ATF LTS version
>> Yes. I assume relevant
tf.org projects decide to branch LTSes so that we can extend the scope to selected OP-TEE TAs for the Trusted Substrate LTS and may be extend duration of support for the
tf.org LTSes. (just to make sure: this is just early open thinking to understand what it would mean to build such a service on the Linaro side should there be
tf.org LTSes).
Makes sense. For any platform owner, Trusted Substrate LTS would be a very compelling service.
From: François Ozog <francois.ozog@linaro.org>
Sent: Friday, June 12, 2020 5:51 AM
To: Varun Wadekar <vwadekar@nvidia.com>
Cc: tf-a@lists.trustedfirmware.org
Subject: Re: [TF-A] ATF LTS version
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External email: Use caution opening links or attachments
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On Thu, 11 Jun 2020 at 23:42, Varun Wadekar via TF-A <tf-a@lists.trustedfirmware.org> wrote:
Hello Matteo,
Apologies for still using an outdated term. I have trained myself to get used to "TF-A" - looks like I am still not there.
>> The idea has also been just raised to the Trusted Firmware project Board for initial consideration and we will be all very keen to understand how much interest there is from the wider TF-A community of adopters and external (non-Arm) maintainers
That is good to hear. For the exact scope, I think we can assume the usual expectations from any LTS software stack - stability, performance, security, bug fixes along with maintenance support. We are open to discussing the cadence and any other operational commitments.
@Francois, from the description of Trusted Substrate looks like you also expect the sub-projects to provide LTS versions for the project as a whole to succeed (?)
Yes. I assume relevant tf.org projects decide to branch LTSes so that we can extend the scope to selected OP-TEE TAs for the Trusted Substrate LTS and may be extend duration of support for the
tf.org LTSes. (just to make sure: this is just early open thinking to understand what it would mean to build such a service on the Linaro side should there be
tf.org LTSes).
-Varun
-----Original Message-----
From: TF-A <tf-a-bounces@lists.trustedfirmware.org> On Behalf Of Matteo Carlini via TF-A
Sent: Thursday, June 11, 2020 4:25 AM
To: tf-a@lists.trustedfirmware.org
Subject: Re: [TF-A] ATF LTS version
External email: Use caution opening links or attachments
Hi Francois,
> I'd be happy to know more about what you see as TFA LTS: exact scope, number of versions, duration, operational commitments (zero-day...).
> Do you have other firmware LTS needs?
Agree. That’s precisely what I was hinting to Varun, when mentioning concrete requirements for the LTS scheme.
> Trusted Substrate is the aggregation of { TFA, OP-TEE, some TEE apps such as firmwareTPM, U-Boot }.
> Trusted Substrate effort is led by Linaro members and is going to be set up as a more open project.
First time I heard about it. Good to know, but I guess we'll need to discuss the intersection and collaboration with the Trusted Firmware project at some point.
Having a LTS versioning scheme for the Trusted Firmware hosted projects should be theoretically either in the scope of the Project itself or, if the Board agrees, appointed to some other project/entity.
> Our end goal is to enable unified, transactional, robust (anti-bricking, anti rollback) UEFI OTA on both U-Boot and EDK2.
Fair, but IMHO this has little to do with Arm Secure world software LTS releases (TF-A/Hafnium/OP-TEE/TAs, TF-M)...probably best to discuss aside, this is not in scope of what Varun is raising.
Thanks
Matteo
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