The description of how to set MCUBOOT_LOG_LEVEL in tfm_secure_boot.rst
appears wrong, or at least unclear.
---
- MCUBOOT_LOG_LEVEL:
Can be used to configure the level of logging in MCUBoot. The possible
values are the following:
- **LOG_LEVEL_OFF**
- **LOG_LEVEL_ERROR**
- **LOG_LEVEL_WARNING**
- **LOG_LEVEL_INFO**
- **LOG_LEVEL_DEBUG**
The logging in MCUBoot can be disabled and thus the code size can
be reduced
by setting it to ``LOG_LEVEL_OFF``. Its value depends on the build
type. If
the build type is ``Debug`` and a value has been provided (e.g.
through the
command line or the CMake GUI) then that value will be used,
otherwise it is
``LOG_LEVEL_INFO`` by default. In case of different kinds of
``Release``
builds its value is set to ``LOG_LEVEL_OFF`` (any other value will be
overridden).
---
I tried enabling MCUBOOT_LOG_LEVEL_DEBUG by adding
-DMCUBOOT_LOG_LEVEL=LOG_LEVEL_DEBUG to the cmake command line, but that
set the level to -1. I also tried -DMCUBOOT_LOG_LEVEL=4, which also set
it to -1. I then noticed that the default setting in CMakeCache.txt is
"MCUBOOT_LOG_LEVEL:STRING=INFO", so I instead used
-DMCUBOOT_LOG_LEVEL=DEBUG, which worked.
I would also like to be able to use logging for Release builds, as this
may assist chasing down optimization issues.
Thomas
Hi Anton,
I'd like to share a proposal to improve dual-cpu mailbox.
Best regards,
Hu Ziji
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Anton Komlev via TF-M
Sent: Thursday, November 19, 2020 4:59 PM
To: tf-m(a)lists.trustedfirmware.org
Cc: nd <nd(a)arm.com>
Subject: [TF-M] Technical Forum call - November 26
Hello,
The next Technical Forum is planned on Thursday, November 26 at 15:00-16:00 GMT (US friendly time zone).
Please reply on this email with your proposals for agenda topics.
Recording and slides of previous meetings are here:
https://www.trustedfirmware.org/meetings/tf-m-technical-forum/
Best regards,
Anton
Hi,
New TF-M Release Candidate 3 is tagged by TF-Mv1.2-RC3
Please update all repositories as it contain all fixes for issues found in RC2.
Best regards,
Anton
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Anton Komlev via TF-M
Sent: 11 November 2020 15:34
To: tf-m(a)lists.trustedfirmware.org
Cc: nd <nd(a)arm.com>
Subject: Re: [TF-M] Code freeze heads up for TF-M v1.2
Hi,
New TF-M Release Candidate 2 is tagged by TF-Mv1.2-RC2.
Please update all repositories as it contain fixes for issues found in RC1.
Best regards,
Anton
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Anton Komlev via TF-M
Sent: 04 November 2020 16:35
To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: Re: [TF-M] Code freeze heads up for TF-M v1.2
Hi,
All TF-M repositories are tagged with TF-Mv1.2-RC1 tag, marking the code freeze and beginning of the release candidate testing.
1. tf-m-tools
2. tf-m-tests
3. trusted-firmware-m
4. tf-m-ci-scripts
5. tf-m-job-configs
Please use this tag for tests and report all issues found here.
The best,
Anton
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Anton Komlev via TF-M
Sent: 02 November 2020 14:28
To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: [TF-M] Code freeze heads up for TF-M v1.2
Hi All,
This is a reminder and heads up that TF-Mv1.2 release is planned for the end of November and TF-M code repository is aimed for freeze on Nov 4th (Wed), tagged by TF-Mv1.2-RC1 for testing. Availability of the tag will be notified via this mailing list.
Thanks,
Anton
Hello,
The next Technical Forum is planned on Thursday, November 26 at 15:00-16:00 GMT (US friendly time zone).
Please reply on this email with your proposals for agenda topics.
Recording and slides of previous meetings are here:
https://www.trustedfirmware.org/meetings/tf-m-technical-forum/
Best regards,
Anton
Hi,
Following up the current discussions on semantic versioning, I have prepared a patch <https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/7075/1> . Feel free to review and comment.
Expanded patch link: https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/7075/1
Minos
________________________________
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> on behalf of Gyorgy Szing via TF-M <tf-m(a)lists.trustedfirmware.org>
Sent: 16 November 2020 17:32
To: tf-m(a)lists.trustedfirmware.org <tf-m(a)lists.trustedfirmware.org>
Cc: nd <nd(a)arm.com>
Subject: Re: [TF-M] Semantic versioning
Hi,
Well, yes. Not sure what backwards compatibility would mean in a complex application with a configurable set of services and service capabilities. Semantic versioning could work quite well for components (i.e. secure service implementations) though.
/George
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Anton Komlev via TF-M
Sent: 16 November 2020 18:04
To: tf-m(a)lists.trustedfirmware.org
Cc: nd <nd(a)arm.com>
Subject: Re: [TF-M] Semantic versioning
Hi George, All,
Thanks for the thoughts. Can I assume that you suggest to stay with option 1?
The semantic versioning was proposed several times and sounds reasonable because it gives a meaning to each version component so downstream projects could rely on it.
Yes, a version of a product represents some quality status but in my view that depends on convention. For downstream projects reference, TF-M issues releases periodically so a version represents a stable point in time and occasionally brings new features / fixes.
Cheers,
Anton
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Gyorgy Szing via TF-M
Sent: 16 November 2020 08:17
To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: Re: [TF-M] Semantic versioning
Hi,
I miss something here. What is being discussed, what is the purpose of changing version numbering?
* Is more granularity needed and each or some lesser quality levels should be assigned a version number too? Currently a new version number is assigned if a new SW set reaches “Release” quality level. (Whatever that might be.)
* Is there need for expressing backwards compatibility better?
* Is the aim to enhance existing version numbers just by making them following a well-defined standard?
I have the feeling different people are talking about different sub-topics.
I think the most important purpose or having release numbers is to express quality. It could help on version numbers if quality would be defined cleaner.
/George
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Kevin Peng via TF-M
Sent: 16 November 2020 09:06
To: David Hu <David.Hu(a)arm.com<mailto:David.Hu@arm.com>>; David Wang <David.Wang(a)arm.com<mailto:David.Wang@arm.com>>; Anton Komlev <Anton.Komlev(a)arm.com<mailto:Anton.Komlev@arm.com>>; tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: Re: [TF-M] Semantic versioning
I would vote for Option 3, and “.2” - Backport the fixing patches to the existing v1.x.0 tag. – This provides the flexibility to have a released version with critical fixes only.
If TF-M users want all the changes between the release and the fix they can take the master branch as well.
Best Regards,
Kevin
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of David Hu via TF-M
Sent: Monday, November 16, 2020 3:45 PM
To: David Wang <David.Wang(a)arm.com<mailto:David.Wang@arm.com>>; tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>; Anton Komlev <Anton.Komlev(a)arm.com<mailto:Anton.Komlev@arm.com>>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: Re: [TF-M] Semantic versioning
Hi Anton,
Option 3 seems more reasonable to me.
Hi David,
I think we can leave tag v1.x.0 as it is and create a new tag v1.x.1 for this critical fix on master branch. It can be more easier to distinguish between tags.
Best regards,
Hu Ziji
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of David Wang via TF-M
Sent: Monday, November 16, 2020 2:53 PM
To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: Re: [TF-M] Semantic versioning
Hi Anton,
Option 3 is a good.
Just to clarify, for example, if v1.x.0 released, and we got a critical fix 2 months later. Then in your proposal, we:
* Tag the current master which includes the fixing patch (and may also include some other merged/ongoing features after last release) as v1.x.1, or
* Backport the fixing patches to the existing v1.x.0 tag (keep it in a new branch) and tag the tip of the v1.x release branch as v1.x.1
Thanks.
Regards,
David Wang
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Kevin Townsend via TF-M
Sent: Saturday, November 14, 2020 3:45 AM
To: Anton Komlev <Anton.Komlev(a)arm.com<mailto:Anton.Komlev@arm.com>>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>; tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Subject: Re: [TF-M] Semantic versioning
Hi Anton,
Option 3 seems the most sensible to me for a project like TF-M at this stage.
Best regards,
Kevin
On Fri, 13 Nov 2020 at 20:19, Anton Komlev via TF-M <tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>> wrote:
Hi,
I would like to continue the discussion on TF-M semantic versioning started on the last tech forum.
Currently TF-M uses a loosely defined versioning schema with major and minor versions, following TF-A.
There are several calls to switch TF-M to semantic versioning.
Here is the reminder of the meaning: (https://semver.org/) v1.2.3 :
1. MAJOR version when you make incompatible API changes,
2. MINOR version when you add functionality in a backwards compatible manner, and
3. PATCH version when you make backwards compatible bug fixes.
This is a good way to go for a mature project but TF-M will overkill from everyday re-versioning because of new patches. It was discussed on the forum and several options were proposed:
1. Do nothing, reasonably bumping up versions on release time only.
2. Use semantic versioning ignoring changes in PATCH by keeping it 0. So upcoming version could be: v1.2.0, next v1.3.0 and nothing in between.
3. Use option 2 but change PATCH when critical code change delivered within release cadence like a security vulnerability fix to let down-stream project relay on a fixed version.
4. Other ideas?
Personally I tend to follow option 3 but looking for the community input.
Thanks,
Anton.
--
TF-M mailing list
TF-M(a)lists.trustedfirmware.org<mailto:TF-M@lists.trustedfirmware.org>
https://lists.trustedfirmware.org/mailman/listinfo/tf-m
Hi,
In Linaro Virtual Connect 20 (LVC20), Shebu and I presented a session "Scalable Security Using Trusted Firmware-M Profiles" (ref[1]).
It basically shows an example of using FreeRTOS+TF-M Profile Small on armv8m devices to connect to AWS cloud through a Gateway.
The key features demonstrated in the example:
* Symmetric cipher based secure connection - TLS PSK
* Usage of (symmetric) attestation
* Device-Gateway-Cloud secure channel example
A blog (https://www.trustedfirmware.org/blog/amazon-freertos-tfm-blog/) is shared in tf.org if you want to know more details of the design.
Thanks.
Ref:
[1] Scalable Security Using Trusted Firmware-M Profiles - https://connect.linaro.org/resources/lvc20/lvc20-213/
Regards,
David Wang
ARM Electronic Technology (Shanghai) Co., Ltd
Phone: +86-21-6154 9142 (ext. 59142)
Hi Andrej,
Thanks for reporting this. It looks like the dependency on TFM_TEST_PATH matters. We need to define something for managing these generated files.
/Ken
-----Original Message-----
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Andrej Butok via TF-M
Sent: Friday, November 13, 2020 9:54 PM
To: Raef Coles <Raef.Coles(a)arm.com>; Anton Komlev <Anton.Komlev(a)arm.com>
Cc: tf-m(a)lists.trustedfirmware.org
Subject: Re: [TF-M] Generated files location
Hi,
FYI:
For Windows (not Liniux) users, the command have to be:
...
set TFM_TEST_PATH=../tf-m-tests/test
python tools/tfm_parse_manifest_list.py -m tools/tfm_manifest_list.yaml -f tools/tfm_generated_file_list.yaml -o <output> ...
Also, all required Python modules have to be installed before (PyYAML, Jinja2)
Best regards,
Andrej Butok
-----Original Message-----
From: Raef Coles <Raef.Coles(a)arm.com>
Sent: Thursday, November 12, 2020 2:11 PM
To: Anton Komlev <Anton.Komlev(a)arm.com>; Andrej Butok <andrey.butok(a)nxp.com>
Cc: tf-m(a)lists.trustedfirmware.org
Subject: Re: Generated files location
Hi,
As an intermediate step, we've made a modification to the file generation code so that file can be generated without cmake being run.
This generation can be run by:
```
python3 tools/tfm_parse_manifest_list.py -m tools/tfm_manifest_list.yaml -f tools/tfm_generated_file_list.yaml -o <output dir> ```
Which will output the files into the specified output directory. if the `-o` flag is not provided then the files will be generated into the TFM source tree.
Note that this method still requires knowledge of the location of some dependencies, as this cannot be provided by cmake. When run in standalone mode, these paths are gathered from environment variables, and generation will fail if those variables are not set. Thus:
```
env TFM_TEST_PATH=$(realpath ../tf-m-tests/test) python3 tools/tfm_parse_manifest_list.py -m tools/tfm_manifest_list.yaml -f tools/tfm_generated_file_list.yaml
```
Raef
________________________________________
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> on behalf of Andrej Butok via TF-M <tf-m(a)lists.trustedfirmware.org>
Sent: 20 October 2020 08:39
To: Anton Komlev
Cc: tf-m(a)lists.trustedfirmware.org
Subject: Re: [TF-M] Generated files location
Hi Anton
If it's not possible to avoid a file generation now, it's good to have pre-generated files for a most typical configuration (l2, IPC etc.).
As I mentioned before, ideally to use TFM as a real component/framework without generation of any source code.
BUT If you believe, this requirement breaks a TFM concept, just tell us.
Thanks,
Andrej
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Anton Komlev via TF-M
Sent: Tuesday, October 20, 2020 9:27 AM
To: tf-m(a)lists.trustedfirmware.org
Cc: tf-m(a)lists.trustedfirmware.org
Subject: Re: [TF-M] Generated files location
Hi Andrej,
Essentially, do you mean to move the files back to code tree and synch them with templates manually as it was ?
Cheers,
Anton
From: Andrej Butok <andrey.butok(a)nxp.com<mailto:andrey.butok@nxp.com>>
Sent: 19 October 2020 16:15
To: Anton Komlev <Anton.Komlev(a)arm.com<mailto:Anton.Komlev@arm.com>>
Cc: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Subject: RE: Generated files location
Hi Anton,
Another option:
3. Avoid the mandatory on-the-fly generation.
Try to make TFM a component/framework, which is configurable by compile & run time parameters.
Thanks,
Andrej
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Anton Komlev via TF-M
Sent: Monday, October 19, 2020 5:00 PM
To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: [TF-M] Generated files location
Hi,
Some source files in TF-M are templated and generated inside /<build_dir>/generated/ on the fly as a part of build process. This guaranty consistency between templates and generated but might make a trouble for IDE, where not all source files exist at the first run.
I see 2 options for solution:
1. Explicitly generate those files via cmake as a part of IDE project creation (1 time action)
2. Relay on CMSIS Pack for IDE, where generated files must be presents Any alternative thoughts?
Anton
--
TF-M mailing list
TF-M(a)lists.trustedfirmware.org
https://lists.trustedfirmware.org/mailman/listinfo/tf-m
Hi,
Well, yes. Not sure what backwards compatibility would mean in a complex application with a configurable set of services and service capabilities. Semantic versioning could work quite well for components (i.e. secure service implementations) though.
/George
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Anton Komlev via TF-M
Sent: 16 November 2020 18:04
To: tf-m(a)lists.trustedfirmware.org
Cc: nd <nd(a)arm.com>
Subject: Re: [TF-M] Semantic versioning
Hi George, All,
Thanks for the thoughts. Can I assume that you suggest to stay with option 1?
The semantic versioning was proposed several times and sounds reasonable because it gives a meaning to each version component so downstream projects could rely on it.
Yes, a version of a product represents some quality status but in my view that depends on convention. For downstream projects reference, TF-M issues releases periodically so a version represents a stable point in time and occasionally brings new features / fixes.
Cheers,
Anton
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Gyorgy Szing via TF-M
Sent: 16 November 2020 08:17
To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: Re: [TF-M] Semantic versioning
Hi,
I miss something here. What is being discussed, what is the purpose of changing version numbering?
* Is more granularity needed and each or some lesser quality levels should be assigned a version number too? Currently a new version number is assigned if a new SW set reaches “Release” quality level. (Whatever that might be.)
* Is there need for expressing backwards compatibility better?
* Is the aim to enhance existing version numbers just by making them following a well-defined standard?
I have the feeling different people are talking about different sub-topics.
I think the most important purpose or having release numbers is to express quality. It could help on version numbers if quality would be defined cleaner.
/George
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Kevin Peng via TF-M
Sent: 16 November 2020 09:06
To: David Hu <David.Hu(a)arm.com<mailto:David.Hu@arm.com>>; David Wang <David.Wang(a)arm.com<mailto:David.Wang@arm.com>>; Anton Komlev <Anton.Komlev(a)arm.com<mailto:Anton.Komlev@arm.com>>; tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: Re: [TF-M] Semantic versioning
I would vote for Option 3, and “.2” - Backport the fixing patches to the existing v1.x.0 tag. – This provides the flexibility to have a released version with critical fixes only.
If TF-M users want all the changes between the release and the fix they can take the master branch as well.
Best Regards,
Kevin
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of David Hu via TF-M
Sent: Monday, November 16, 2020 3:45 PM
To: David Wang <David.Wang(a)arm.com<mailto:David.Wang@arm.com>>; tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>; Anton Komlev <Anton.Komlev(a)arm.com<mailto:Anton.Komlev@arm.com>>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: Re: [TF-M] Semantic versioning
Hi Anton,
Option 3 seems more reasonable to me.
Hi David,
I think we can leave tag v1.x.0 as it is and create a new tag v1.x.1 for this critical fix on master branch. It can be more easier to distinguish between tags.
Best regards,
Hu Ziji
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of David Wang via TF-M
Sent: Monday, November 16, 2020 2:53 PM
To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: Re: [TF-M] Semantic versioning
Hi Anton,
Option 3 is a good.
Just to clarify, for example, if v1.x.0 released, and we got a critical fix 2 months later. Then in your proposal, we:
* Tag the current master which includes the fixing patch (and may also include some other merged/ongoing features after last release) as v1.x.1, or
* Backport the fixing patches to the existing v1.x.0 tag (keep it in a new branch) and tag the tip of the v1.x release branch as v1.x.1
Thanks.
Regards,
David Wang
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Kevin Townsend via TF-M
Sent: Saturday, November 14, 2020 3:45 AM
To: Anton Komlev <Anton.Komlev(a)arm.com<mailto:Anton.Komlev@arm.com>>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>; tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Subject: Re: [TF-M] Semantic versioning
Hi Anton,
Option 3 seems the most sensible to me for a project like TF-M at this stage.
Best regards,
Kevin
On Fri, 13 Nov 2020 at 20:19, Anton Komlev via TF-M <tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>> wrote:
Hi,
I would like to continue the discussion on TF-M semantic versioning started on the last tech forum.
Currently TF-M uses a loosely defined versioning schema with major and minor versions, following TF-A.
There are several calls to switch TF-M to semantic versioning.
Here is the reminder of the meaning: (https://semver.org/) v1.2.3 :
1. MAJOR version when you make incompatible API changes,
2. MINOR version when you add functionality in a backwards compatible manner, and
3. PATCH version when you make backwards compatible bug fixes.
This is a good way to go for a mature project but TF-M will overkill from everyday re-versioning because of new patches. It was discussed on the forum and several options were proposed:
1. Do nothing, reasonably bumping up versions on release time only.
2. Use semantic versioning ignoring changes in PATCH by keeping it 0. So upcoming version could be: v1.2.0, next v1.3.0 and nothing in between.
3. Use option 2 but change PATCH when critical code change delivered within release cadence like a security vulnerability fix to let down-stream project relay on a fixed version.
4. Other ideas?
Personally I tend to follow option 3 but looking for the community input.
Thanks,
Anton.
--
TF-M mailing list
TF-M(a)lists.trustedfirmware.org<mailto:TF-M@lists.trustedfirmware.org>
https://lists.trustedfirmware.org/mailman/listinfo/tf-m
Hi George, All,
Thanks for the thoughts. Can I assume that you suggest to stay with option 1?
The semantic versioning was proposed several times and sounds reasonable because it gives a meaning to each version component so downstream projects could rely on it.
Yes, a version of a product represents some quality status but in my view that depends on convention. For downstream projects reference, TF-M issues releases periodically so a version represents a stable point in time and occasionally brings new features / fixes.
Cheers,
Anton
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Gyorgy Szing via TF-M
Sent: 16 November 2020 08:17
To: tf-m(a)lists.trustedfirmware.org
Cc: nd <nd(a)arm.com>
Subject: Re: [TF-M] Semantic versioning
Hi,
I miss something here. What is being discussed, what is the purpose of changing version numbering?
* Is more granularity needed and each or some lesser quality levels should be assigned a version number too? Currently a new version number is assigned if a new SW set reaches “Release” quality level. (Whatever that might be.)
* Is there need for expressing backwards compatibility better?
* Is the aim to enhance existing version numbers just by making them following a well-defined standard?
I have the feeling different people are talking about different sub-topics.
I think the most important purpose or having release numbers is to express quality. It could help on version numbers if quality would be defined cleaner.
/George
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Kevin Peng via TF-M
Sent: 16 November 2020 09:06
To: David Hu <David.Hu(a)arm.com<mailto:David.Hu@arm.com>>; David Wang <David.Wang(a)arm.com<mailto:David.Wang@arm.com>>; Anton Komlev <Anton.Komlev(a)arm.com<mailto:Anton.Komlev@arm.com>>; tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: Re: [TF-M] Semantic versioning
I would vote for Option 3, and “.2” - Backport the fixing patches to the existing v1.x.0 tag. – This provides the flexibility to have a released version with critical fixes only.
If TF-M users want all the changes between the release and the fix they can take the master branch as well.
Best Regards,
Kevin
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of David Hu via TF-M
Sent: Monday, November 16, 2020 3:45 PM
To: David Wang <David.Wang(a)arm.com<mailto:David.Wang@arm.com>>; tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>; Anton Komlev <Anton.Komlev(a)arm.com<mailto:Anton.Komlev@arm.com>>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: Re: [TF-M] Semantic versioning
Hi Anton,
Option 3 seems more reasonable to me.
Hi David,
I think we can leave tag v1.x.0 as it is and create a new tag v1.x.1 for this critical fix on master branch. It can be more easier to distinguish between tags.
Best regards,
Hu Ziji
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of David Wang via TF-M
Sent: Monday, November 16, 2020 2:53 PM
To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: Re: [TF-M] Semantic versioning
Hi Anton,
Option 3 is a good.
Just to clarify, for example, if v1.x.0 released, and we got a critical fix 2 months later. Then in your proposal, we:
* Tag the current master which includes the fixing patch (and may also include some other merged/ongoing features after last release) as v1.x.1, or
* Backport the fixing patches to the existing v1.x.0 tag (keep it in a new branch) and tag the tip of the v1.x release branch as v1.x.1
Thanks.
Regards,
David Wang
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Kevin Townsend via TF-M
Sent: Saturday, November 14, 2020 3:45 AM
To: Anton Komlev <Anton.Komlev(a)arm.com<mailto:Anton.Komlev@arm.com>>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>; tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Subject: Re: [TF-M] Semantic versioning
Hi Anton,
Option 3 seems the most sensible to me for a project like TF-M at this stage.
Best regards,
Kevin
On Fri, 13 Nov 2020 at 20:19, Anton Komlev via TF-M <tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>> wrote:
Hi,
I would like to continue the discussion on TF-M semantic versioning started on the last tech forum.
Currently TF-M uses a loosely defined versioning schema with major and minor versions, following TF-A.
There are several calls to switch TF-M to semantic versioning.
Here is the reminder of the meaning: (https://semver.org/) v1.2.3 :
1. MAJOR version when you make incompatible API changes,
2. MINOR version when you add functionality in a backwards compatible manner, and
3. PATCH version when you make backwards compatible bug fixes.
This is a good way to go for a mature project but TF-M will overkill from everyday re-versioning because of new patches. It was discussed on the forum and several options were proposed:
1. Do nothing, reasonably bumping up versions on release time only.
2. Use semantic versioning ignoring changes in PATCH by keeping it 0. So upcoming version could be: v1.2.0, next v1.3.0 and nothing in between.
3. Use option 2 but change PATCH when critical code change delivered within release cadence like a security vulnerability fix to let down-stream project relay on a fixed version.
4. Other ideas?
Personally I tend to follow option 3 but looking for the community input.
Thanks,
Anton.
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Hi Antonio,
I'm not sure if this helps, but here is an example of how we sign the
binaries for the MPS2 AN521, for example, after building the TF-M and
Zephyr NS images, plus MCUBoot:
https://github.com/zephyrproject-rtos/zephyr/blob/966015f503d1438c25d597937…
Best regards,
Kevin
On Fri, 13 Nov 2020 at 16:19, Antonio Ken IANNILLO via TF-M <
tf-m(a)lists.trustedfirmware.org> wrote:
> Hi all,
>
> I abandoned the idea to build at once tf-m and zephyr and switched to
> separated compilations.
>
> Now, I have both secure and non-secure binaries but I’m not sure how to
> concatenate and sign them.
>
> I found the assemble.py script but I don’t know whether it is the correct
> one or where to find the signing_layout.
>
>
>
> To be more specific, for my current target musca-a (going to switch to
> musca-s as soon as it arrives):
>
> - I built TF-M
> - I imported and included in my zephyr application both libpsa_api_ns.a
> and libtfm_s_veneers.a
> - I build my zephyr application
>
> Now (I suppose) I have to
>
> - merge zephyr.bin with tfm_s.bin
> - sign the merged binary
> - concatenate with bl2
>
> I could not find any reference how to correctly do these last steps.
>
>
>
> Best,
>
> --
>
> *Antonio Ken Iannillo*
>
> Research Scientist – SEDAN group
>
> SnT – Interdisciplinary Centre for Security, Reliability and Trust
>
> UNIVERSITÉ DU LUXEMBOURG
>
>
>
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