Subject: Re: [PATCH 5/6] vdpa: introduce virtio pci driver

From: "Michael S. Tsirkin" <[email-masked]>
Date: Thu, 4 Jun 2020 14:50:37 -0400

On Tue, Jun 02, 2020 at 03:12:27PM +0800, Jason Wang wrote:
> 
> On 2020/6/2 下午1:09, Michael S. Tsirkin wrote:
> > On Fri, May 29, 2020 at 04:03:02PM +0800, Jason Wang wrote:
> > > Note that since virtio specification does not support get/restore
> > > virtqueue state. So we can not use this driver for VM. This can be
> > > addressed by extending the virtio specification.
> > Looks like exactly the kind of hardware limitation VDPA is supposed to
> > paper over within guest. So I suggest we use this as
> > a litmus test, and find ways for VDPA to handle this without
> > spec changes.
> 
> 
> Yes, and just to confirm, do you think it's beneficial to extend virtio
> specification to support state get/set?
> 
> Thanks

Let's leave that for another day. For now vdpa should be flexible enough
to work on spec compliant VMs.