[Qemu-discuss] Running dual-core ARM Cortexa9

[Ilya Katsnelson]

Hello:

Does anyone have experience running ARM Dual-core (in particular) Cortexa9 simulation? Can you share the exact parameters that should be used?

So the general QEMu options that come with Yocto are as following:

qemu-system-arm -kernel zImage-vcm4-try.bin -net nic,model=virtio -net tap,vlan=0,ifname=tap0,script=no,downscript=no -M versatilepb -drive file=core-image-minimal-vcm4-try-20151220011520.rootfs.ext4,if=virtio,format=raw -no-reboot -show-cursor -usb -usbdevice wacom-tablet -no-reboot -nographic -serial mon:stdio -append 'console=ttyS0' -m 128 -serial null --append "root=/dev/vda rw console=ttyAMA0,115200 console=tty ip=192.168.7.2::192.168.7.1:255.255.255.0 mem=128M highres=off rootfstype=ext4 "

However, it uses versatilepb as the machine and it only supports one core.

I've tried using different machine parameter - "-M vexpress-a9 -cpu cortex-a9". But then QEMu was complaining that the network driver was incorrect, then USB driver, then storage driver.

Does anyone know how the proper set of arguments to use for the cortex-a9 multicore?

Thanks so much,

-Ilya.