Re: [virtio-comment] [RFC PATCH] virtio-pci: introduce device state capability

[Jason Wang <jasowang@redhat.com>]

On 2020/12/18 äå11:16, Jason Wang wrote:
> > >
> > A per-virtqueue stopped state is not enough to stop a device because
> > some devices have global behavior like config change events. It must be
> > possible to completely stop the device to prevent further activity
> > (VIRTIO config space changes, interrupts, etc).
> >
> > Maybe a Device Status register bit can be added for that?
>
>
> I've considered such case, one of the idea is to introduce a new 
> device status to achieve which seems more generic. Then we need to 
> define a state machine carefully.


So I post another RFC to introduce a new device status bit. Please review.

Thanks