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5ff0102329
Recent kernel commit [0] changed selftests config snippets structure
by extracting VM specific options to the file 'config.vm'. This file
has to be used in .github/actions/vmtest/action.yml at step
'Prepare to build BPF selftests', otherwise drivers necessary for e.g.
root file system access are not compiled into the kernel, leading to
CI failures like [1].
[0] b0cf0dcde8ca ("selftests/bpf: Consolidate VIRTIO/9P configs in config.vm file")
[1] https://github.com/libbpf/libbpf/actions/runs/6830439839/job/18578379328?pr=747
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
102 lines
3.2 KiB
YAML
102 lines
3.2 KiB
YAML
name: 'vmtest'
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description: 'Build + run vmtest'
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inputs:
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kernel:
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description: 'kernel version or LATEST'
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required: true
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default: 'LATEST'
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arch:
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description: 'what arch to test'
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required: true
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default: 'x86_64'
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pahole:
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description: 'pahole rev or master'
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required: true
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default: 'master'
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runs:
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using: "composite"
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steps:
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# setup environment
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- name: Setup environment
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uses: libbpf/ci/setup-build-env@main
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with:
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pahole: ${{ inputs.pahole }}
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# 1. download CHECKPOINT kernel source
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- name: Get checkpoint commit
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shell: bash
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run: |
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cat CHECKPOINT-COMMIT
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echo "CHECKPOINT=$(cat CHECKPOINT-COMMIT)" >> $GITHUB_ENV
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- name: Get kernel source at checkpoint
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uses: libbpf/ci/get-linux-source@main
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with:
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repo: 'https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git'
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rev: ${{ env.CHECKPOINT }}
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dest: '${{ github.workspace }}/.kernel'
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- name: Patch kernel source
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uses: libbpf/ci/patch-kernel@main
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with:
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patches-root: '${{ github.workspace }}/ci/diffs'
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repo-root: '.kernel'
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- name: Prepare to build BPF selftests
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shell: bash
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run: |
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source $GITHUB_ACTION_PATH/../../../ci/vmtest/helpers.sh
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foldable start "Prepare building selftest"
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cd .kernel
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cat tools/testing/selftests/bpf/config \
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tools/testing/selftests/bpf/config.${{ inputs.arch }} > .config
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# this file might or mihgt not exist depending on kernel version
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cat tools/testing/selftests/bpf/config.vm >> .config || :
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make olddefconfig && make prepare
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cd -
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foldable end
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# 2. if kernel == LATEST, build kernel image from tree
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- name: Build kernel image
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if: ${{ inputs.kernel == 'LATEST' }}
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shell: bash
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run: |
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source $GITHUB_ACTION_PATH/../../../ci/vmtest/helpers.sh
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foldable start "Build Kernel Image"
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cd .kernel
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make -j $((4*$(nproc))) all > /dev/null
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cp vmlinux ${{ github.workspace }}
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cd -
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foldable end
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# else, just download prebuilt kernel image
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- name: Download prebuilt kernel
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if: ${{ inputs.kernel != 'LATEST' }}
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uses: libbpf/ci/download-vmlinux@main
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with:
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kernel: ${{ inputs.kernel }}
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arch: ${{ inputs.arch }}
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# 3. build selftests
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- name: Build BPF selftests
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uses: ./.github/actions/build-selftests
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with:
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repo-path: '.kernel'
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kernel: ${{ inputs.kernel }}
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# 4. prepare rootfs
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- name: prepare rootfs
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uses: libbpf/ci/prepare-rootfs@main
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env:
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KBUILD_OUTPUT: '.kernel'
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with:
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project-name: 'libbpf'
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arch: ${{ inputs.arch }}
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kernel: ${{ inputs.kernel }}
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kernel-root: '.kernel'
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kbuild-output: ${{ env.KBUILD_OUTPUT }}
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image-output: '/tmp/root.img'
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# 5. run selftest in QEMU
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- name: Run selftests
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env:
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KERNEL: ${{ inputs.kernel }}
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REPO_ROOT: ${{ github.workspace }}
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uses: libbpf/ci/run-qemu@main
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with:
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arch: ${{ inputs.arch }}
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img: '/tmp/root.img'
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vmlinuz: 'vmlinuz'
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kernel-root: '.kernel'
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