Please support KVM on ARM runners

[bdrung]

Type of issue

• Error when running a workflow.
• Request for additional tools or software for an existing image.
• Request for a new image, Linux or Windows.
• Other

Describe the issue
We like to use QEMU with KVM to speed up the dracut tests on arm64. Here you can see the current arm64 dracut tests: dracut-ng/dracut-ng#1915

To Reproduce

Use a CI job like this:

jobs:
    arm64:
        name: KVM on arm64
        runs-on: ubuntu-24.04-arm
        timeout-minutes: 1
        container:
            image: ghcr.io/dracut-ng/ubuntu:devel-arm
            options: '--device=/dev/kvm --privileged'
        steps:
          - test -c /dev/kvm
          - /usr/bin/qemu-system-arm64 -enable-kvm -cpu host -M virt

This job should start QEMU and not fail to find /dev/kvm or fail to use it:

qemu-system-arm64: Could not access KVM kernel module: No such file or directory
qemu-system-arm64: failed to initialize kvm: No such file or directory

Expected behavior
I wish /dev/kvm would be present in the container and usable.

Desktop (please complete the following information):

• OS: Ubuntu 24.04
• container: any (e.g. ubuntu:devel)

Additional context

PR for dracut: dracut-ng/dracut-ng#1915

[jasonrandrews]

Hello, GitHub Actions run on virtualized servers and KVM is not exposed to users. In most cloud providers, you can use kvm on bare-metal instances but not virtual machines. You would need to use a self-hosted runner on a bare-metal system to access kvm in your workflows.