QEMU 加载 uboot kernel 实例

qemu-system-arm -M mcimx6ul-evk \
                -m 512M \
                -kernel ./zImage \
                -dtb ./imx6ul-14x14-evk.dtb  \
                -nographic \
                -device sd-card,drive=mysdcard \
                -drive file=rootfs.ext3,format=raw,id=mysdcard \
                -append "root=/dev/mmcblk1 rw console=ttymxc0,115200"