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feat(kernel): adopt the arcbox microvm kernel on x86_64 (v0.0.24) #50

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Merged
AprilNEA merged 2 commits into from
Aug 7, 2026
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feat(kernel): adopt the arcbox microvm kernel on x86_64 (v0.0.24) #50

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feat(kernel): adopt the arcbox microvm kernel on x86_64 and move both…
AprilNEA Aug 7, 2026
b5965f2
fix(kernel): the Firecracker ACPI floor is 1.8, not 1.7
AprilNEA Aug 7, 2026
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24 changes: 12 additions & 12 deletions upstream.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -113,25 +113,25 @@ extract = "release-v1.16.1-x86_64/jailer-v1.16.1-x86_64"
# --- Guest kernel image (for Firecracker microVMs) ---
# Placed at /arcbox/kernel/vmlinux inside the guest VM.
#
# arm64 is the arcboxlabs/kernel `microvm` flavor (CORE-79): a dedicated
# minimal sandbox kernel (virtio-mmio only, no PCI/ACPI/EFI/netfilter)
# targeting kernel-entry -> PID 1 in the 200-300 ms class under nested
# virt. The version string keys the immutable CDN path
# (bin/vmlinux/{version}/{arch}/vmlinux), so rollback = revert this pin.
#
# x86_64 stays on the stock Firecracker CI kernel until an x86 microvm
# config lands (Firecracker x86_64 boots an ELF vmlinux and needs
# VIRTIO_MMIO_CMDLINE_DEVICES + kvmclock).
# Both arches are the arcbox `microvm` kernel flavor: a dedicated
# minimal sandbox kernel targeting kernel-entry -> PID 1 in the
# 200-300 ms class. arm64 boots nested inside the macOS System VM (DT
# discovery, Image artifact, no ACPI); x86_64 boots on bare-metal Linux
# KVM hosts via Firecracker's hardware-reduced ACPI (DSDT-enumerated
# virtio-mmio, ELF vmlinux artifact) and requires Firecracker >= 1.8.
# The version string keys the immutable CDN path
# (bin/vmlinux/{version}/{arch}/vmlinux) and must change whenever the
# kernel bytes change, so rollback = revert this pin.

[[binaries]]
name = "vmlinux"
version = "0.0.23-microvm"
version = "0.0.24-microvm"
install_dir = "kernel"

[binaries.source.arm64]
format = "binary"
url = "https://github.com/arcboxlabs/kernel/releases/download/v0.0.23/microvm-kernel-arm64"
url = "https://github.com/arcboxlabs/kernel/releases/download/v0.0.24/microvm-kernel-arm64"

[binaries.source.x86_64]
format = "binary"
url = "https://s3.amazonaws.com/spec.ccfc.min/firecracker-ci/v1.14/x86_64/vmlinux-6.1.155"
url = "https://github.com/arcboxlabs/kernel/releases/download/v0.0.24/microvm-kernel-x86_64"