On 3 March 2012 15:41, Alexander Golec <thejfasi at gmail.com> wrote: > I'm trying to fiddle with virtio driver in kvm on ARM, but I can't > get QEMU to start. When I try to start it as so: > > qemu-system-arm -enable-kvm -M vexpress-a9 -drive file=/arm-wheezy.img,if=virtio -append 'root=/dev/mmcblk0 console=ttyAMA1 rootwait earlyprintk' -kernel /zImage-guest -nographic > > it complains about a missing PCI bus: Yes. This is because the vexpress-a9 machine has no PCI, so you can't currently use virtio with it. The current plan is to implement the virtio-mmio transport to provide virtio, but this isn't done yet. PS: you should probably be using vexpress-a15 instead since in practice the CPU KVM will give you will look basically like a kind of A15. Still no PCI, though. -- PMM