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Original armvirt target is now subtarget 32. Other than that the built
result should remain the same as before
Besides old features already available with arm64, the new armvirt/64
subtarget will also have those features originally enabled for
armvirt/32 with commit 44ecfc2 ("armvirt: new target")
- pl011, uart
- pl031, rtc
- pl061, gpio
- pci-host-generic
- virtio_{mmio,pci,net,blk,scsi,9p,console,balloon}
- smp with NR_CPUS=4
- cpu-hotplug
- ext4
- DEBUG_BUGVERBOSE for debug purposes
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
This is intended to be used with LEDE 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 lede-armvirt-32-zImage-initramfs # boot with accel=kvm qemu-system-arm -nographic -M virt,accel=kvm -cpu host -m 64 -kernel lede-armvirt-32-zImage-initramfs # boot with a separate rootfs qemu-system-arm -nographic -M virt -m 64 -kernel lede-armvirt-32-zImage \ -drive file=lede-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 lede-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 lede-armvirt-32-zImage -i lede-armvirt-32-rootfs.cpio --name armvirt0 # start with virtio-9p rootfs lkvm run -k lede-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 lede-armvirt-64-Image-initramfs \