Bump libkrun to v1.18.0 and libkrunfw to v5.4.0#82
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libkrun v1.17.3 -> v1.18.0: - Nested virt support on Linux (KVM intel/amd nested params probed) - New virtio drivers: snd, input, rng, can, rtc - Read-only virtiofs mounts - KILLPRIV_V2, cap-ng -> caps refactor, numerous bug fixes libkrunfw v5.2.0 -> v5.4.0: - Rebased on Linux kernel 6.12.87 - KVM enabled in the embedded kernel (enables nested virt) - virtio-snd, virtio-can, virtio-input, virtio-rtc drivers enabled - EROFS xattr/security support on x86_64 Validated locally: - Builder image builds clean against new versions - task test-nocgo + CGO tests (./krun/..., ./hypervisor/libkrun/...) pass - End-to-end bbox VM boot in 2.66s, clean shutdown Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
rdimitrov
approved these changes
May 19, 2026
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Summary
LIBKRUN_VERSIONfromv1.17.3tov1.18.0LIBKRUNFW_VERSIONfromv5.2.0tov5.4.0docs/CI.mdexample to matchWhy
We're a few releases behind on both libraries. The most notable changes:
libkrun v1.17.3 → v1.18.0
libkrunfw v5.2.0 → v5.4.0
Full release notes:
Test plan
Already validated locally on linux/amd64:
task builder-image-build— clean build of libkrun v1.18.0 + libkrunfw v5.4.0 from sourcetask build-runner— Go bindings compile against the new libkrun (no CGO breakage)task test-nocgo— all pure-Go tests pass./krun/...and./hypervisor/libkrun/...pass inside the new builder imageOnce merged:
🤖 Generated with Claude Code