Here's what I've been using last time I had to muck with the 4210
stuff:
<quote>
qemu-system-arm \
-kernel arch/arm/boot/zImage -M smdkc210 \
-append "console=ttySAC0,115200n8 earlycon=smh root=/dev/mmcblk0p2 rootwait" \
-nographic -semihosting -smp 2 \
-dtb arch/arm/boot/dts/exynos4210-smdkv310.dtb \
-drive if=sd,driver=null-co -drive if=sd,driver=null-co \
-drive if=sd,file=../vminstall/bullseye32/MsiKFRxxujYIkiKT.img,format=raw
</quote>
where the last line points to a standard Debian image created
separately.