NV-Kernels GitHub Actions

This branch contains GitHub Actions workflows for the NV-Kernels repository.

Workflows

update-and-rebase.yml

Automatically rebases NVIDIA kernel branches onto the latest upstream stable tags from Greg KH's linux.git. Runs daily at midnight UTC and can be triggered manually.

Supported branches:

• linux-nvidia-6.6
• linux-nvidia-6.12
• linux-nvidia-6.18

When successful, creates rebased branches named linux-nvidia-X.Y-vX.Y.Z (e.g., linux-nvidia-6.12-v6.12.65).

kernel-build.yml

Builds and tests kernels with the following matrix:

Architecture	Config
x86_64	defconfig
ARM64	4K page size
ARM64	64K page size

Includes boot tests via QEMU and runs kselftests for mm, dma, iommu, and locking subsystems.

Triggers:

• Manual dispatch (select branch to build)
• Automatically after successful rebase

Branch Structure

• linux - Unmodified upstream Linux kernel mirror
• github-actions - This branch (GitHub Actions workflows only)
• linux-nvidia-* - NVIDIA kernel branches with patches on top of stable releases

Why a separate github-actions branch?

The linux branch is an unmodified mirror of Torvalds' upstream kernel, kept in sync via a daily cron job that runs git reset --hard to match upstream. Any commits added to linux (including workflow files) would be wiped out on the next sync.

We needed a place to store the workflow files that wouldn't be affected by the upstream sync. Creating an orphan github-actions branch with only the .github/workflows/ directory and a README solves this - it's completely independent of the kernel source tree.

Why is this the default branch?

GitHub Actions scheduled workflows (cron) only run on the repository's default branch. Since our workflows live on github-actions and we wanted the daily rebase to run automatically, we set github-actions as the default branch.

This also keeps linux as a pristine upstream mirror with no extra commits on top.