Rusty Russell wrote:
> +
> +static void vp_reset(struct virtio_device *vdev)
> +{
> +     struct virtio_pci_device *vp_dev = to_vp_device(vdev);
> +     /* 0 status means a reset. */
> +     return iowrite8(0, vp_dev->ioaddr + VIRTIO_PCI_STATUS);
>  }
>   

pci has something called FLR for function-level reset.  If we use that 
as the reset mechanism, then reset can be initiated from outside the 
virtio layer, if the guest OS supports that.

-- 
error compiling committee.c: too many arguments to function


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