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. -- MST