From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Tsirkin" Subject: Re: [PATCH] vhost: introduce vDPA based backend Date: Tue, 4 Feb 2020 01:01:48 -0500 Message-ID: <20200204005306-mutt-send-email-mst@kernel.org> References: <20200131033651.103534-1-tiwei.bie@intel.com> <7aab2892-bb19-a06a-a6d3-9c28bc4c3400@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <7aab2892-bb19-a06a-a6d3-9c28bc4c3400@redhat.com> Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" To: Jason Wang Cc: kvm@vger.kernel.org, mhabets@solarflare.com, virtualization@lists.linux-foundation.org, jgg@mellanox.com, rob.miller@broadcom.com, lulu@redhat.com, maxime.coquelin@redhat.com, hch@infradead.org, eperezma@redhat.com, haotian.wang@sifive.com, shahafs@mellanox.com, parav@mellanox.com, jiri@mellanox.com, zhihong.wang@intel.com, netdev@vger.kernel.org, rdunlap@infradead.org, linux-kernel@vger.kernel.org, hanand@xilinx.com, lingshan.zhu@intel.com List-Id: virtualization@lists.linuxfoundation.org On Tue, Feb 04, 2020 at 11:30:11AM +0800, Jason Wang wrote: > 5) generate diffs of memory table and using IOMMU API to setup the dma > mapping in this method Frankly I think that's a bunch of work. Why not a MAP/UNMAP interface? -- MST