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OP-TEE version 4.7.0 has been released on 2025-07-11 [1], and includes fixes that are currently collected as separate patches in the layer collection. Upgrade OP-TEE recipes to point to version 4.7.0, and drop patches from layers as they are already present in upstream. Clang patch in `optee-os` package was completely removed. Upstream logic was changed in PR #7382 [2], making this patch obsolete. CVE-2025-46733 in `optee-ftpm` package is now properly tagged and included in 4.7.0 version as well. One patch that is still kept in the layer is optee-client/0001-tee-supplicant-update-udev-systemd-install-code.patch, as it has been merged after 4.7.0 tag was applied, but already present in upstream as commit 59b90488e93e ("tee-supplicant: update udev & systemd install code"). Further updates shall consider to drop this as well. In addition, point corestone1000 machine to a new version, as 4.6.0 is dropped from the layer. TZDRAM patch is also dropped as it is now present in upstream. Link: [1]: https://github.com/OP-TEE/optee_os/blob/master/CHANGELOG.md#op-tee---version-470-2025-07-11 Link: [2]: https://github.com/OP-TEE/optee_os/pull/7382 Signed-off-by: Andrey Zhizhikin <andrey.z@gmail.com> Signed-off-by: Jon Mason <jon.mason@arm.com>
Introduction
This repository contains the Arm layers for OpenEmbedded.
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meta-arm
This layer contains general recipes for the Arm architecture, such as firmware, FVPs, and Arm-specific integration.
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meta-arm-bsp
This layer contains machines for Arm reference platforms, for example FVP Base, Corstone1000, and Juno.
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meta-arm-toolchain
This layer contains recipes for Arm's binary toolchains (GCC and Clang for -A and -M), and a recipe to build Arm's GCC.
Other Directories
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ci
This directory contains gitlab continuous integration configuration files (KAS yaml files) as well as scripts needed for this.
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documentation
This directory contains information on the files in this repository, building, and other relevant documents.
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kas
This directory contains KAS yaml files to describe builds for systems not used in CI.
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scripts
This directory contains scripts used in running the CI tests.
Mailing List
To interact with the meta-arm developer community, please email the meta-arm mailing list at meta-arm@lists.yoctoproject.org. Currently, it is configured to only allow emails to members from those subscribed. To subscribe to the meta-arm mailing list, please go to https://lists.yoctoproject.org/g/meta-arm
Contributing
Currently, we only accept patches from the meta-arm mailing list. For general information on how to submit a patch, please read https://www.openembedded.org/wiki/How_to_submit_a_patch_to_OpenEmbedded
E-mail meta-arm@lists.yoctoproject.org with patches created using this process. You can configure git-send-email to automatically use this address for the meta-arm repository with the following git command:
$ git config --local --add sendemail.to meta-arm@lists.yoctoproject.org
Commits and patches added should follow the OpenEmbedded patch guidelines:
https://www.openembedded.org/wiki/Commit_Patch_Message_Guidelines
The component being changed in the shortlog should be prefixed with the layer name (without the meta- prefix), for example:
arm-bsp/trusted-firmware-a: decrease frobbing level
arm-toolchain/gcc: enable foobar v2
All contributions are under the MIT License.
For a quick start guide on how to build and use meta-arm, go to quick-start.md.
For information on the continuous integration done on meta-arm and how to use it, go to continuous-integration-and-kas.md.
Backporting
Backporting patches to older releases may be done upon request, but only after a version of the patch has been accepted into the master branch. This is done by adding the branch name to email subject line. This should be between the square brackets (e.g., "[" and "]"), and before or after the "PATCH". For example,
[nanbield PATCH] arm/linux-yocto: backport patch to fix 6.5.13 networking issues
Automatic backporting will be done to all branches if the "Fixes: " wording is added to the patch commit message. This is similar to how the Linux kernel community does their LTS kernel backporting. For more information see the "Fixes" portion of https://www.kernel.org/doc/html/latest/process/submitting-patches.html#submittingpatches
Releases and Release Schedule
We follow the Yocto Project release methodology, schedule, and stable/LTS support timelines. For more information on these, please reference:
- https://docs.yoctoproject.org/ref-manual/release-process.html
- https://wiki.yoctoproject.org/wiki/Releases
- https://wiki.yoctoproject.org/wiki/Stable_Release_and_LTS
For more in-depth information on the meta-arm release and branch methodology, go to </documentation/releases.md>.
Reporting bugs
E-mail meta-arm@lists.yoctoproject.org with the error encountered and the steps to reproduce the issue.
Security and Reporting Security Issues
For information on the security of meta-arm and how to report issues, please consult SECURITY.md.
Maintainer(s)
- Jon Mason jon.mason@arm.com
- Ross Burton ross.burton@arm.com