microvm: bump runtime assets to kata 4.0.0 + virtiofsd v1.14.0#506
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Julian Gutierrez Oschmann (juli4n) merged 1 commit intoJul 23, 2026
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Eitan Yarmush (EItanya)
previously approved these changes
Jul 23, 2026
virtiofsd v1.14.0 is the first release carrying the vhost-0.16 / vhost-user-backend-0.22 snapshot-restore fix (REPLY_ACK), so the build-from-a-pinned-main-commit arrangement is no longer needed: amd64 downloads the prebuilt x86_64-musl binary attached to the upstream release (reproducible bytes, fixed sha pin in the manifest, no rust toolchain in CI), and arm64 builds from the release tag (upstream publishes no arm64 binary), keeping deploy-time sha injection. kata-static 4.0.0 still bundles virtiofsd v1.13.3, which hangs cloud-hypervisor's restore handshake, so virtiofsd remains a separately-sourced asset. kata 4.0.0 assets are drop-in: the agent protos are byte-identical to the vendored 3.31.0 set, configuration-clh.toml still carries the [hypervisor.clh] section ateom parses, and the guest is now kernel 6.18.35 + the Ubuntu noble image. cloud-hypervisor stays at v52.0.
Benjamin Elder (BenTheElder)
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Local testing was arm64 ... virtiofsd download on amd64 needed fixing ... fixed and tested that. |
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Is it worth adding tests for both architectures in a follow-up to catch it in the future? |
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github actions only supports KVM on amd64 (and even that is best-effort, not really supported) |
Julian Gutierrez Oschmann (juli4n)
approved these changes
Jul 23, 2026
Julian Gutierrez Oschmann (juli4n)
merged commit Jul 23, 2026
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We no longer need to compile virtiofsd when installing for amd64, we still need to for arm64 (no upstream release)
Drop-in compatible, only updating the scripts that manage obtaining the binaries, and the versions / hashes in the config.
Tests pass
Appropriate changes to documentation are included in the PR