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Date: Sun, 8 Sep 2013 11:07:56 +0100
From: "Richard W.M. Jones" <rjones@redhat.com>
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Subject: Re: [Qemu-devel] ARM virtio-serial not showing up (was: Re: ARM
 virtio-scsi - disks never show up)
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To: Peter Maydell <peter.maydell@linaro.org>
Cc: Amit Shah <amit.shah@redhat.com>, QEMU Developers <qemu-devel@nongnu.org>

On Sat, Sep 07, 2013 at 09:49:24AM +0100, Peter Maydell wrote:
> On 6 September 2013 19:01, Richard W.M. Jones <rjones@redhat.com> wrote:
> >
> > Have you tried virtio-serial on ARM at all?  The port never shows up.
> 
> I don't think I've tested the serial-device part of it, but I've
> used it to provide virtio console with:
>  -append 'root=/dev/mmcblk0 rw console=hvc0 rootwait' \
>  -device virtio-serial-device \
>  -device virtconsole,chardev=mychardev \
>  -chardev stdio,id=mychardev
> 
> and that definitely worked.

Thanks.

The problem turned out to be slightly more mundane:

  $ grep VIRTIO.CONSOLE /boot/config-3.11.0-3.fc20.armv7hl 
  # CONFIG_VIRTIO_CONSOLE is not set

After switching to a kernel with CONFIG_VIRTIO_CONSOLE=m it works fine ...

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
libguestfs lets you edit virtual machines.  Supports shell scripting,
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