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[35.187.245.222]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-81fa10e8059sm16855579b3a.30.2026.01.21.22.14.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Jan 2026 22:14:34 -0800 (PST) Date: Thu, 22 Jan 2026 06:14:29 +0000 From: Pranjal Shrivastava To: Leon Romanovsky Cc: Alex Williamson , Ankit Agrawal , Jason Gunthorpe , Kevin Tian , Vivek Kasireddy , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH vfio-rc] vfio: Prevent from pinned DMABUF importers to attach to VFIO DMABUF Message-ID: References: <20260121-vfio-add-pin-v1-1-4e04916b17f1@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260121-vfio-add-pin-v1-1-4e04916b17f1@nvidia.com> On Wed, Jan 21, 2026 at 05:45:02PM +0200, Leon Romanovsky wrote: > From: Leon Romanovsky > > Some pinned importers, such as non-ODP RDMA ones, cannot invalidate their > mappings and therefore must be prevented from attaching to this exporter. > > Fixes: 5d74781ebc86 ("vfio/pci: Add dma-buf export support for MMIO regions") > Signed-off-by: Leon Romanovsky > --- > This is an outcome of this discussion about revoke functionality. > https://lore.kernel.org/all/20260121134712.GZ961572@ziepe.ca > > Thanks > --- > drivers/vfio/pci/vfio_pci_dmabuf.c | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > Reviewed-by: Pranjal Shrivastava Thanks