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Tsirkin" To: Jason Wang Subject: Re: [PATCH 0/4] vDPA: API for reporting IOVA range Message-ID: <20201021104508-mutt-send-email-mst@kernel.org> References: <20200617032947.6371-1-jasowang@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200617032947.6371-1-jasowang@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Cc: shahafs@mellanox.com, lulu@redhat.com, saugatm@xilinx.com, mhabets@solarflare.com, vmireyno@marvell.com, linux-kernel@vger.kernel.org, gdawar@xilinx.com, virtualization@lists.linux-foundation.org, eperezma@redhat.com, hanand@xilinx.com, zhangweining@ruijie.com.cn, eli@mellanox.com, lingshan.zhu@intel.com, rob.miller@broadcom.com X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" 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? > 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 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization