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[47.55.120.4]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8b2aeeb541esm1003670385a.18.2025.11.17.09.41.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Nov 2025 09:41:18 -0800 (PST) Received: from jgg by wakko with local (Exim 4.97) (envelope-from ) id 1vL3E5-000000005dU-3LHI; Mon, 17 Nov 2025 13:41:17 -0400 Date: Mon, 17 Nov 2025 13:41:17 -0400 From: Jason Gunthorpe To: "Winiarski, Michal" Cc: "Tian, Kevin" , Alex Williamson , "De Marchi, Lucas" , Thomas =?utf-8?Q?Hellstr=C3=B6m?= , "Vivi, Rodrigo" , Yishai Hadas , Shameer Kolothum , "intel-xe@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" , "kvm@vger.kernel.org" , "Brost, Matthew" , "Wajdeczko, Michal" , "dri-devel@lists.freedesktop.org" , Jani Nikula , Joonas Lahtinen , Tvrtko Ursulin , David Airlie , Simona Vetter , "Laguna, Lukasz" , Christoph Hellwig Subject: Re: [PATCH v5 28/28] vfio/xe: Add device specific vfio_pci driver variant for Intel graphics Message-ID: <20251117174117.GD17968@ziepe.ca> References: <20251111010439.347045-1-michal.winiarski@intel.com> <20251111010439.347045-29-michal.winiarski@intel.com> <7ig24norebemzdih64rcpvdj22xee23ha7bndiltkgjlpmoau2@25usxq7teedz> 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: On Wed, Nov 12, 2025 at 02:46:08PM +0100, Winiarski, Michal wrote: > > > I agree that it should be done in the core eventually. > > > I didn't view it as something blocking next revision, as the discussion > > > was in the context of converting every driver, which is something that > > > probably shouldn't be done as part of this series. > > > > well it doesn't make much sense to push a new driver specific > > implementation when the core approach is preferred. > > This would generally mean that accepting any new VFIO driver variant > would be blocked until core approach materializes. > > Jason, can you confirm that this is indeed what you have in mind? > Just to determine how urgent the core-side changes are, and whether > there's anything we can do to help with that. A core approach would be nice, but I also haven't looked at what it would be like. I think if you post a small series trying to build one and convert some of the existing drivers it would be sufficient to let this go ahead. Jason