On 05/21/2013 08:29 AM, Marc Zyngier wrote:
> Patch e03b449cbddf (kvm tools: add status notification hook for
> virtio) converted virtio-net to use a new notification mechanism,
> but unfortunately left virtio-mmio behind.
>
> The direct consequence is that both arm and arm64 guests are left
> without any form of networking. Not good.
>
> Bring virtio-mmio into this brave new notified world, and feel the
> power of being able to ping again.
>
> Cc: Sasha Levin <sasha.levin@xxxxxxxxxx>
> Cc: Will Deacon <will.deacon@xxxxxxx>
> Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
> ---
> tools/kvm/virtio/mmio.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/tools/kvm/virtio/mmio.c b/tools/kvm/virtio/mmio.c
> index a4e4855..afa2692 100644
> --- a/tools/kvm/virtio/mmio.c
> +++ b/tools/kvm/virtio/mmio.c
> @@ -144,16 +144,21 @@ static void virtio_mmio_config_out(u64 addr, void *data, u32 len,
> struct virtio_device *vdev)
> {
> struct virtio_mmio *vmmio = vdev->virtio;
> + struct kvm *kvm = vmmio->kvm;
> u32 val = 0;
>
> switch (addr) {
> case VIRTIO_MMIO_HOST_FEATURES_SEL:
> case VIRTIO_MMIO_GUEST_FEATURES_SEL:
> case VIRTIO_MMIO_QUEUE_SEL:
> - case VIRTIO_MMIO_STATUS:
> val = ioport__read32(data);
> *(u32 *)(((void *)&vmmio->hdr) + addr) = val;
> break;
> + case VIRTIO_MMIO_STATUS:
> + vmmio->hdr.status = ioport__read32(data);
> + if (vdev->ops->notify_status)
> + vdev->ops->notify_status(kvm, vmmio->dev, vmmio->hdr.status);
> + break;
> case VIRTIO_MMIO_GUEST_FEATURES:
> if (vmmio->hdr.guest_features_sel == 0) {
> val = ioport__read32(data);
>
Pekka, could you apply please?
Acked-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
Thanks,
Sasha
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