VirtIO FS support in 6.12.x for x86 and arm64 by UbiquitousBear · Pull Request #4197 · linuxkit/linuxkit

UbiquitousBear · 2026-01-03T15:09:16Z

- What I did

Add VirtIO FS Support for linux kernel 6.12.x for x86 and amr64 archs
- How I did it

- How to verify it
Builds and test not possible - make update-kernel-yamls is now adding junk characters.

- Description for the changelog

- A picture of a cute animal (not mandatory but encouraged)

Signed-off-by: Shamil Nunhuck <shamil@shamil.email>

This reverts commit c1ef7d4. Signed-off-by: Shamil Nunhuck <shamil@shamil.email>

UbiquitousBear · 2026-01-03T15:11:28Z

@deitch , I've tried running make update-kernel-yamls but I can't generate clean files, I end up with rubbish:

git status
On branch feat/virtiofs-6.12.x
Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   ../test/cases/020_kernel/022_config_6.12.x/test.yml
        modified:   ../test/cases/020_kernel/122_kmod_6.12.x/Dockerfile
        modified:   ../test/cases/020_kernel/122_kmod_6.12.x/test.sh
        modified:   ../test/cases/020_kernel/122_kmod_6.12.x/test.yml
        modified:   ../test/cases/020_kernel/222_tags_6.12.x/test.sh

Untracked files:
  (use "git add <file>..." to include in what will be committed)
        ../examples/addbinds.yml''
        ../examples/cadvisor.yml''
        ../examples/containerd-debug.yml''
        ../examples/dm-crypt-loop.yml''
        ../examples/dm-crypt.yml''
        ../examples/docker-for-mac.yml''
        ../examples/docker.yml''
        ../examples/getty.yml''
        ../examples/hostmount-writeable-overlay.yml''
        ../examples/influxdb-os.yml''
        ../examples/logging.yml''
        ../examples/minimal.yml''
        ../examples/node_exporter.yml''
        ../examples/openstack.yml''
        ../examples/platform-aws.yml''
        ../examples/platform-azure.yml''
        ../examples/platform-equinixmetal.arm64.yml''
        ../examples/platform-equinixmetal.yml''
        ../examples/platform-gcp.yml''
        ../examples/platform-hetzner.yml''
        ../examples/platform-scaleway.yml''
        ../examples/platform-vmware.yml''
        ../examples/platform-vultr.yml''
        ../examples/redis-os.yml''
        ../examples/sshd.yml''
        ../examples/static-ip.yml''
        ../examples/swap.yml''
        ../examples/tpm.yml''
        ../examples/volumes.yml''
        ../examples/vpnkit-forwarder.yml''
        ../examples/vsudd-containerd.yml''
        ../examples/wireguard.yml''
        ../linuxkit-template.yml''
        ../linuxkit.yml''
        ../pkg/firmware/Dockerfile''
        ../projects/compose/compose-dynamic.yml''
        ../projects/compose/compose-static.yml''
        ../projects/miragesdk/examples/fdd.yml''
        ../projects/miragesdk/examples/mirage-dhcp.yml''
        ../src/cmd/linuxkit/moby/build/mkimage.yaml''
        ../test/cases/000_build/000_formats/test.yml''
        ../test/cases/000_build/001_tarheaders/test.yml''
        ../test/cases/000_build/010_reproducible/test.yml''
        ../test/cases/000_build/020_binds/test.yml''
        ../test/cases/000_build/050_sbom/test.yml''
        ../test/cases/000_build/060_input_tar/000_build/test1.yml''
        ../test/cases/000_build/060_input_tar/000_build/test2.yml''
        ../test/cases/000_build/060_input_tar/010_same_filename/test.yml''
        ../test/cases/000_build/070_volumes/000_rw_on_rw/test.yml''
        ../test/cases/000_build/070_volumes/001_ro_on_ro/test.yml''
        ../test/cases/000_build/070_volumes/002_rw_on_ro/test.yml''
        ../test/cases/000_build/070_volumes/003_ro_on_rw/test.yml''
        ../test/cases/000_build/070_volumes/004_blank/test.yml''
        ../test/cases/000_build/070_volumes/005_image/test.yml''
        ../test/cases/000_build/070_volumes/006_mount_types/test.yml''
        ../test/cases/000_build/080_mirrors/test.yml''
        ../test/cases/000_build/091_validate_linuxkit_yaml/linuxkit.yml''
        ../test/cases/010_platforms/000_qemu/000_run_kernel+initrd/test.yml''
        ../test/cases/010_platforms/000_qemu/005_run_kernel+squashfs/test.yml''
        ../test/cases/010_platforms/000_qemu/010_run_iso/test.yml''
        ../test/cases/010_platforms/000_qemu/020_run_efi/test.yml''
        ../test/cases/010_platforms/000_qemu/030_run_qcow_bios/test.yml''
        ../test/cases/010_platforms/000_qemu/040_run_raw_bios/test.yml''
        ../test/cases/010_platforms/000_qemu/050_run_aws/test.yml''
        ../test/cases/010_platforms/000_qemu/060_run_raw_efi/test.yml''
        ../test/cases/010_platforms/000_qemu/100_container/test.yml''
        ../test/cases/010_platforms/010_hyperkit/000_run_kernel+initrd/test.yml''
        ../test/cases/010_platforms/010_hyperkit/005_run_kernel+squashfs/test.yml''
        ../test/cases/010_platforms/010_hyperkit/010_acpi/test.yml''
        ../test/cases/010_platforms/110_gcp/000_run/test.yml''
        ../test/cases/020_kernel/019_config_6.6.x/test.yml''
        ../test/cases/020_kernel/022_config_6.12.x/test.yml''
        ../test/cases/020_kernel/119_kmod_6.6.x/Dockerfile''
        ../test/cases/020_kernel/119_kmod_6.6.x/test.sh''
        ../test/cases/020_kernel/119_kmod_6.6.x/test.yml''
        ../test/cases/020_kernel/122_kmod_6.12.x/Dockerfile''
        ../test/cases/020_kernel/122_kmod_6.12.x/test.sh''
        ../test/cases/020_kernel/122_kmod_6.12.x/test.yml''
        ../test/cases/020_kernel/200_namespace/common.yml''
        ../test/cases/020_kernel/219_tags_6.6.x/test.sh''
        ../test/cases/020_kernel/222_tags_6.12.x/test.sh''
        ../test/cases/030_security/000_docker-bench/test.yml''
        ../test/cases/030_security/010_ports/test.yml''
        ../test/cases/040_packages/001_dummy/test.yml''
        ../test/cases/040_packages/002_bcc/test.yml''
        ../test/cases/040_packages/002_binfmt/test.yml''
        ../test/cases/040_packages/002_bpftrace/test.yml''
        ../test/cases/040_packages/003_ca-certificates/test.yml''
        ../test/cases/040_packages/003_cgroupv2/test.yml''
        ../test/cases/040_packages/003_containerd/test.yml''
        ../test/cases/040_packages/004_dhcpcd/test.yml''
        ../test/cases/040_packages/004_dm-crypt/000_simple/test.yml''
        ../test/cases/040_packages/004_dm-crypt/001_luks/test.yml''
        ../test/cases/040_packages/004_dm-crypt/002_key/test.yml''
        ../test/cases/040_packages/005_extend/000_ext4/test-create.yml''
        ../test/cases/040_packages/005_extend/000_ext4/test.yml''
        ../test/cases/040_packages/005_extend/001_btrfs/test-create.yml''
        ../test/cases/040_packages/005_extend/001_btrfs/test.yml''
        ../test/cases/040_packages/005_extend/002_xfs/test-create.yml''
        ../test/cases/040_packages/005_extend/002_xfs/test.yml''
        ../test/cases/040_packages/005_extend/003_gpt/test-create.yml''
        ../test/cases/040_packages/005_extend/003_gpt/test.yml''
        ../test/cases/040_packages/006_format_mount/000_auto/test.yml''
        ../test/cases/040_packages/006_format_mount/001_by_label/test.yml''
        ../test/cases/040_packages/006_format_mount/002_by_name/test.yml.in''
        ../test/cases/040_packages/006_format_mount/003_btrfs/test.yml''
        ../test/cases/040_packages/006_format_mount/004_xfs/test.yml''
        ../test/cases/040_packages/006_format_mount/005_by_device_force/test.yml''
        ../test/cases/040_packages/006_format_mount/006_gpt/test.yml''
        ../test/cases/040_packages/006_format_mount/010_multiple/test.yml''
        ../test/cases/040_packages/007_getty-containerd/test.yml''
        ../test/cases/040_packages/009_init_containerd/test.yml''
        ../test/cases/040_packages/011_kmsg/test.yml''
        ../test/cases/040_packages/012_logwrite/test.yml''
        ../test/cases/040_packages/012_losetup/test.yml''
        ../test/cases/040_packages/013_metadata/000_cidata/test.yml''
        ../test/cases/040_packages/013_mkimage/mkimage.yml''
        ../test/cases/040_packages/013_mkimage/run.yml''
        ../test/cases/040_packages/019_sysctl/test.yml''
        ../test/cases/040_packages/023_wireguard/test.yml''
        ../test/hack/test-ltp.yml''
        ../test/hack/test.yml''
        ../test/pkg/ns/template.yml''

UbiquitousBear · 2026-01-07T22:36:15Z

@rn or @justincormack - any chance I can get some help here? I'm working on a proof of concept, and I'd like to see this in linuxkit rather than my own image :)

UbiquitousBear · 2026-01-14T17:08:02Z

@deitch is there any help you can provide? Trying to generate tests and yamls

deitch · 2026-01-15T17:37:33Z

Hi @UbiquitousBear

iIt isn't just about updating the specific lines in kernel/6.12.x/config-aarch64 and kernel/6.12.x/config-x86_64. How did you change those lines?

In general, we do not rerelease new versions of the same kernel. The current 6.12.x is 6.12.59 (see here). So any changes will go into an updated version. I think 6.12.65 is the latest). You would need to change that args file, and follow the process for creating a new version in a given series, in this doc. Further up, it explains modifying the kernel config. Did you follow the linuxkit/kconfig process?

UbiquitousBear · 2026-01-15T18:09:00Z

@deitch, yes I did follow the instructions (and making yamls still creates junk files).

I can either go to the next patch or minor; what would you prefer?

deitch · 2026-01-15T18:12:26Z

Patch, I think

UbiquitousBear · 2026-01-15T18:30:36Z

I’ll update it here, expect something tomorrow ish

UbiquitousBear added 3 commits January 3, 2026 15:09

feat: add virtiofs support to 6.12.x

fc18ad8

Signed-off-by: Shamil Nunhuck <shamil@shamil.email>

feat: add tests

86c71a3

Signed-off-by: Shamil Nunhuck <shamil@shamil.email>

Revert "feat: add tests"

1baeaa9

This reverts commit c1ef7d4. Signed-off-by: Shamil Nunhuck <shamil@shamil.email>

UbiquitousBear force-pushed the feat/virtiofs-6.12.x branch from 1eb37e6 to 1baeaa9 Compare January 3, 2026 15:09

UbiquitousBear changed the title ~~Feat/virtiofs 6.12.x~~ VirtIO FS support in 6.12.x for x86 and amr64 Jan 3, 2026

UbiquitousBear changed the title ~~VirtIO FS support in 6.12.x for x86 and amr64~~ VirtIO FS support in 6.12.x for x86 and arm64 Jan 3, 2026

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VirtIO FS support in 6.12.x for x86 and arm64 #4197

VirtIO FS support in 6.12.x for x86 and arm64 #4197
UbiquitousBear wants to merge 3 commits intolinuxkit:masterfrom
UbiquitousBear:feat/virtiofs-6.12.x

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