Re: [PATCH 1/4] vdpa: introduce config op to get valid iova range

[Jason Wang]

On 2020/8/5 下午8:51, Michael S. Tsirkin wrote:
> On Wed, Jun 17, 2020 at 11:29:44AM +0800, Jason Wang wrote:
> > This patch introduce a config op to get valid iova range from the vDPA
> > device.
> >
> > Signed-off-by: Jason Wang<jasowang@xxxxxxxxxx>
> > ---
> >   include/linux/vdpa.h | 14 ++++++++++++++
> >   1 file changed, 14 insertions(+)
> >
> > diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h
> > index 239db794357c..b7633ed2500c 100644
> > --- a/include/linux/vdpa.h
> > +++ b/include/linux/vdpa.h
> > @@ -41,6 +41,16 @@ struct vdpa_device {
> >   	unsigned int index;
> >   };
> >   
> > +/**
> > + * vDPA IOVA range - the IOVA range support by the device
> > + * @start: start of the IOVA range
> > + * @end: end of the IOVA range
> > + */
> > +struct vdpa_iova_range {
> > +	u64 start;
> > +	u64 end;
> > +};
> > +
> This is ambiguous. Is end in the range or just behind it?


In the range.


> How about first/last?


Sure.

Thanks


>