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This Kernel option allows to run OpenWrt witin a `firecracker` micro VM. Firecracker is a KVM-based tool for superfast booting VMs on x86_64 and aarch64. It makes rootfs available to the guest as a virtio-mmio device and passes its address via the kernel cmdline. A kernel without CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES will not recognize the rootfs virtio-mmio device. Suggested-by: Packet Please <pktpls@systemli.org> Signed-off-by: Paul Spooren <mail@aparcar.org> |
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| image | ||
| config-5.10 | ||
| Makefile | ||
| README | ||
This is intended to be used with OpenWrt project to provide image for use with QEMU ARM virt machine. Run with qemu-system-arm # boot with initramfs embedded in qemu-system-arm -nographic -M virt -m 64 -kernel openwrt-armvirt-32-zImage-initramfs # boot with accel=kvm qemu-system-arm -nographic -M virt,accel=kvm -cpu host -m 64 -kernel openwrt-armvirt-32-zImage-initramfs # boot with a separate rootfs qemu-system-arm -nographic -M virt -m 64 -kernel openwrt-armvirt-32-zImage \ -drive file=openwrt-armvirt-32-root.ext4,format=raw,if=virtio -append 'root=/dev/vda rootwait' # boot with local dir as rootfs qemu-system-arm -nographic -M virt -m 64 -kernel openwrt-armvirt-32-zImage \ -fsdev local,id=rootdev,path=root-armvirt/,security_model=none \ -device virtio-9p-pci,fsdev=rootdev,mount_tag=/dev/root \ -append 'rootflags=trans=virtio,version=9p2000.L,cache=loose rootfstype=9p' Run with kvmtool # start a named machine lkvm run -k openwrt-armvirt-32-zImage -i openwrt-armvirt-32-rootfs.cpio --name armvirt0 # start with virtio-9p rootfs lkvm run -k openwrt-armvirt-32-zImage -d root-armvirt/ # stop "armvirt0" lkvm stop --name armvirt0 # stop all lkvm stop --all The multi-platform ARMv8 target can be used with QEMU: qemu-system-aarch64 -machine virt -cpu cortex-a57 -nographic \ -kernel openwrt-armvirt-64-Image-initramfs \