Re: [Qemu-discuss] No USB host controller and devices on virtualized guest OS (on Arndale board)

[Peter Maydell]

On 4 February 2015 at 14:13,  <address@hidden> wrote:
> We are currently trying to launch an Ubuntu guest OS (with
> virtualization/kvm) on a Cortex-A15/Exynos 5250 Arndale board with the
> following qemu command line :
>
> qemu-system-arm \
>  -enable-kvm \
>  -m 512 -M vexpress-a15 -cpu cortex-a15 -smp 2 \
>  -drive if=none,cache=writeback,file=rootfs_guest.img,id=drive0 \
>  -device virtio-blk-device,drive=drive0 \
>  -kernel zImage \
>  -append "root=/dev/vda rw console=ttyAMA0 rootwait" \
>  -dtb vexpress-v2p-ca15-tc1.dtb \
>  -netdev
> type=tap,id=net0,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown,vhost=off
> -device virtio-net-device,netdev=net0,mac="52:54:00:12:34:01" \
>  -nographic
>
> Our host system is "Linux armHost2 3.18.3-linaro-arndale #21 SMP Thu Jan 29
> 14:05:50 UTC 2015 armv7l armv7l armv7l GNU/Linux"
>
> Our QEMU version is "QEMU emulator version 2.1.0 (Debian 2.1+dfsg-4ubuntu6),
> Copyright (c) 2003-2008 Fabrice Bellard"
>
> We would like to make usb work (mouse, keyboard and harddrive) n the guest
> OS but we didn't succeed yet.

This is expected. We don't emulate the USB controller on the
vexpress-a15 board, so USB won't work.

> - If not, is there a machine compatible with Cortex-A15 which handle usb ?

I'm afraid not.

-- PMM