[dpdk-dev] [RFC][PATCH] vfio: allow to map other memory regions

[Burakov, Anatoly]

> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Pawel Wodkowski
> Sent: Wednesday, May 17, 2017 3:45 PM
> To: dev at dpdk.org
> Cc: Wodkowski, PawelX <pawelx.wodkowski at intel.com>
> Subject: [dpdk-dev] [RFC][PATCH] vfio: allow to map other memory regions
> 
> Currently it is not possible to use memory that is not owned by DPDK to
> perform DMA. This scenarion might be used in vhost applications (like
> SPDK) where guest send its own memory table. To fill this gap provide
> API to allow registering arbitrary address in VFIO container.
> 
> Signed-off-by: Pawel Wodkowski <pawelx.wodkowski at intel.com>
> ---

Seems to make sense to me. Presumably, such locally mapped memory would not work in multiprocess,
so, obvious as it may be, this should probably be documented.

Thanks,
Anatoly