Re: Anyone using virtio on armv7?

Hi Ryan,

On 01/06/2014 05:27 PM, Ryan Harkin wrote:

On 6 January 2014 20:26, Peter Maydell <peter.maydell@linaro.org mailto:peter.maydell@linaro.org> wrote:

On 6 January 2014 19:46, Ryan Harkin <ryan.harkin@linaro.org
<mailto:ryan.harkin@linaro.org>> wrote:
> Hello,
>
> I'm trying to fire up an ARM fastmodel using a virtio block device rather
> than the emulated MMC block device.
>
> UEFI is reading the kernel & DTB off the virtio device, so I know the device
> is present.

> So far, I don't see any vda devices being enumerated (or any other virtio
> messages) and it rootwaits for /dev/vda2.

Stupid question: does the DTB you're passing to the kernel
definitely have the virtio-mmio devices in it? (hopefully in the
right locations).

OMG, I think my brain has been in deep sleep. No, the DTB doesn't have virtio-mmio.

I'll try it again tomorrow, but I'm pretty sure that's it. Thanks!

While debugging it may be easier to specify the device with a kernel parameter than make device tree modifications.

virtio_mmio.device=1K@0x0130000:42

Regards, Christopher