Re: [PATCH 0/4] vDPA: API for reporting IOVA range

[Jason Wang]

On 2020/10/21 下午10:45, Michael S. Tsirkin wrote:
> On Wed, Jun 17, 2020 at 11:29:43AM +0800, Jason Wang wrote:
> > Hi All:
> >
> > This series introduces API for reporing IOVA range. This is a must for
> > userspace to work correclty:
> >
> > - for the process that uses vhost-vDPA directly to properly allocate
> >    IOVA
> > - for VM(qemu), when vIOMMU is not enabled, fail early if GPA is out
> >    of range
> > - for VM(qemu), when vIOMMU is enabled, determine a valid guest
> >    address width
> >
> > Please review.
> >
> > Thanks
> OK so what is the plan here? Change begin-end->first-last and repost?


I've posted V2 with this change, but it get some warning for buildbot.

Will post a V3.

Thanks


> > Jason Wang (4):
> >    vdpa: introduce config op to get valid iova range
> >    vdpa_sim: implement get_iova_range bus operation
> >    vdpa: get_iova_range() is mandatory for device specific DMA
> >      translation
> >    vhost: vdpa: report iova range
> >
> >   drivers/vdpa/vdpa.c              |  4 ++++
> >   drivers/vdpa/vdpa_sim/vdpa_sim.c | 11 +++++++++++
> >   drivers/vhost/vdpa.c             | 27 +++++++++++++++++++++++++++
> >   include/linux/vdpa.h             | 14 ++++++++++++++
> >   include/uapi/linux/vhost.h       |  4 ++++
> >   include/uapi/linux/vhost_types.h |  5 +++++
> >   6 files changed, 65 insertions(+)
> >
> > --
> > 2.20.1