windows下用如下命令可启动A9内核: ..\qemu-system-arm -M vexpress-a9 -m 512M -kernel zImage -dtb vexpress-v2p-ca9.dtb -sd a9root.ext3 -append "root=/dev/mmcblk0 rw console=ttyAMA0" -net nic -net tap,ifname=t0