Dears
because qemu is supporting for "Samsung SMDKC210 board (Exynos4210)". so ,i got the linux kernel v4.9 and qemu-v2.8 version to do this work.
the zImage used the default exynos_defconfig config file.
launched as :
qemu-system-arm -M smdkc210 -m 512M -kernel ./lts4.9.33/arch/arm/boot/zImage -initrd ./ramdisk.img -append "root=/dev/ram0 rw rootfstype=ext4 init=/linuxrc console=ttySAC0 loglevel=8" -dtb ./lts4.9.33/arch/arm/boot/dts/exynos4210-universal_c210.dtb -nographic
but i got this error message and the system is not started : "smdkc210
board supports only 2 CPU cores. Ignoring smp_cpus value".