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43 lines
1.7 KiB
43 lines
1.7 KiB
#!/bin/bash |
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# Check which virtualization technology to use |
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# We prefer kvm, kqemu, userspace in that order. |
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export PATH=/usr/sbin:/usr/bin:/sbin:/bin |
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QEMU_CPU="${QEMU_CPU:-max}" |
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[[ -x /usr/bin/qemu ]] && BIN=/usr/bin/qemu && ARGS=(-cpu "$QEMU_CPU") |
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(lsmod | grep -q '^kqemu ') && BIN=/usr/bin/qemu && ARGS=(-kernel-kqemu -cpu host) |
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[[ -c /dev/kvm && -x /usr/bin/kvm ]] && BIN=/usr/bin/kvm && ARGS=(-cpu host) |
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[[ -c /dev/kvm && -x /usr/bin/qemu-kvm ]] && BIN=/usr/bin/qemu-kvm && ARGS=(-cpu host) |
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[[ -c /dev/kvm && -x /usr/libexec/qemu-kvm ]] && BIN=/usr/libexec/qemu-kvm && ARGS=(-cpu host) |
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[[ -x /usr/bin/qemu-system-$(uname -m) ]] && BIN=/usr/bin/qemu-system-$(uname -m) && ARGS=(-cpu "$QEMU_CPU") |
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[[ -c /dev/kvm && -x /usr/bin/qemu-system-$(uname -m) ]] && BIN=/usr/bin/qemu-system-$(uname -m) && ARGS=(-enable-kvm -cpu host) |
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[[ $BIN ]] || { |
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echo "Could not find a working KVM or QEMU to test with!" >&2 |
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echo "Please install kvm or qemu." >&2 |
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exit 1 |
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} |
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# Provide rng device sourcing the hosts /dev/urandom and other standard parameters |
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ARGS+=(-M q35 -smp 2 -m 512 -nodefaults -vga none -display none -no-reboot -device virtio-rng-pci) |
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if ! [[ $* == *-daemonize* ]] && ! [[ $* == *-daemonize* ]]; then |
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ARGS+=(-serial stdio) |
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fi |
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KVERSION=${KVERSION-$(uname -r)} |
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VMLINUZ="/lib/modules/${KVERSION}/vmlinuz" |
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if ! [ -f "$VMLINUZ" ]; then |
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[[ -f /etc/machine-id ]] && read -r MACHINE_ID < /etc/machine-id |
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if [[ $MACHINE_ID ]] && { [[ -d /boot/${MACHINE_ID} ]] || [[ -L /boot/${MACHINE_ID} ]]; }; then |
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VMLINUZ="/boot/${MACHINE_ID}/$KVERSION/linux" |
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else |
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VMLINUZ="/boot/vmlinuz-${KVERSION}" |
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fi |
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fi |
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exec "$BIN" "${ARGS[@]}" -kernel "$VMLINUZ" "$@"
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