mirror of
https://github.com/hanzoai/vm.git
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zeekayandHanzo Dev
d1191359f4
Same feature set as the arm64 config (virtio-pci, virtio-console, vsock, netfilter, cgroup2 + k3s set); the arch section swaps GICv3/PL011 for PVH direct boot, kvmclock, and ACPI. cloud-hypervisor loads the uncompressed ELF vmlinux via its PVH entry, so the build strips vmlinux into Image instead of taking arch/*/boot/Image. Co-authored-by: Hanzo Dev <[email protected]>
87 lines
3.0 KiB
Bash
Executable File
87 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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set -euo pipefail
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KERNEL_VERSION="${KERNEL_VERSION:-6.12.17}"
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KERNEL_MAJOR="${KERNEL_VERSION%%.*}"
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DATA_DIR="${HANZO_VM_HOME:-$HOME/.hanzo/vm}"
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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REPO_DIR="$(dirname "$SCRIPT_DIR")"
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DEFCONFIG="${REPO_DIR}/kernel/vm_defconfig"
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KERNEL_URL="https://cdn.kernel.org/pub/linux/kernel/v${KERNEL_MAJOR}.x/linux-${KERNEL_VERSION}.tar.xz"
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BUILD_DIR="${DATA_DIR}/kernel-build"
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echo "==> Building custom kernel ${KERNEL_VERSION} for Hanzo VM"
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if [ ! -f "$DEFCONFIG" ]; then
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echo "ERROR: Defconfig not found at ${DEFCONFIG}"
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exit 1
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fi
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mkdir -p "$DATA_DIR"
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if [ ! -d "${BUILD_DIR}/linux-${KERNEL_VERSION}" ]; then
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echo " Downloading kernel source..."
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mkdir -p "$BUILD_DIR"
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curl -sL "$KERNEL_URL" -o "${BUILD_DIR}/linux-${KERNEL_VERSION}.tar.xz"
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echo " Extracting..."
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tar xf "${BUILD_DIR}/linux-${KERNEL_VERSION}.tar.xz" -C "$BUILD_DIR"
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rm -f "${BUILD_DIR}/linux-${KERNEL_VERSION}.tar.xz"
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fi
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if [ "$(uname -m)" = "x86_64" ] && [ "$(uname -s)" = "Linux" ]; then
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echo " Native x86_64 Linux detected, building without Docker"
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cd "${BUILD_DIR}/linux-${KERNEL_VERSION}"
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cp "${REPO_DIR}/kernel/vm_defconfig_x86" arch/x86/configs/vm_defconfig
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make ARCH=x86_64 vm_defconfig
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echo " Compiling kernel (this takes a few minutes)..."
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make ARCH=x86_64 -j"$(nproc)" vmlinux 2>&1 | tail -5
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# cloud-hypervisor direct-boots the uncompressed ELF via its PVH entry.
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strip -o "${DATA_DIR}/Image" vmlinux
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echo " Kernel built: $(du -h "${DATA_DIR}/Image" | cut -f1)"
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elif [ "$(uname -m)" = "aarch64" ] && [ "$(uname -s)" = "Linux" ]; then
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echo " Native aarch64 Linux detected, building without Docker"
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cd "${BUILD_DIR}/linux-${KERNEL_VERSION}"
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cp "$DEFCONFIG" arch/arm64/configs/vm_defconfig
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make ARCH=arm64 vm_defconfig
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echo " Compiling kernel (this takes a few minutes)..."
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make ARCH=arm64 -j"$(nproc)" Image 2>&1 | tail -5
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cp arch/arm64/boot/Image "${DATA_DIR}/Image"
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echo " Kernel built: $(du -h "${DATA_DIR}/Image" | cut -f1)"
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else
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echo " Building in Docker (arm64 container)"
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docker run --rm \
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--platform linux/arm64/v8 \
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-v "${DEFCONFIG}:/tmp/vm_defconfig:ro" \
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-v "${BUILD_DIR}/linux-${KERNEL_VERSION}:/src:rw" \
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-v "${DATA_DIR}:/output" \
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debian:trixie-slim /bin/sh -c '
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set -e
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apt-get update -qq > /dev/null 2>&1
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apt-get install -y -qq build-essential bc flex bison libelf-dev \
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libssl-dev > /dev/null 2>&1
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cd /src
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cp /tmp/vm_defconfig arch/arm64/configs/vm_defconfig
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make ARCH=arm64 vm_defconfig > /dev/null 2>&1
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echo " Compiling kernel (this takes a few minutes)..."
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make ARCH=arm64 -j$(nproc) Image 2>&1 | tail -5
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cp arch/arm64/boot/Image /output/Image
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echo " Kernel built: $(du -h /output/Image | cut -f1)"
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'
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fi
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echo "==> Kernel ready at ${DATA_DIR}/Image"
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