From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C74F82222A9; Mon, 9 Mar 2026 15:33:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773070409; cv=none; b=ppFXPo+KguOZMJAg3PwebV+vsJp/61fNnzdJmzwLigt0XW82beKrsVjTv4/S5g5ZuwaVKg/mtIzAh3wBNbOUabs1F+XT1n+xMuoB2YDMU7aJlp52IEFKXyNRFx2e/Tx2DvFaGfyeeSDMO516u7YqMfMf0llRNLxroFdhbISRFhU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773070409; c=relaxed/simple; bh=aD4Kvtq7MFHFOf563GxDjJW7WigBUuLJJsMJDmUv1Y8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=KvOIOZFExAtYIW/tvhODQAVTXc6LowyC/fQXxG038ZwQH7pfLUt4vqjSCEhge99YBPV5wFc0TOWhrrzIUPxsq6bmVQ5Iqtuh/jCFYWTKxJfOyYJhQQN+4u6yMI6af8pC+VXEYo2ZNrLamHOkIIo5rcWcM7bvLWFE1woHM4vzUTE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=sa8EL99P; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="sa8EL99P" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=pp4urnCi3IeTM6CGI1j9gUGdpbRv58OD4sLS7m/YmFk=; b=sa8EL99PTk5jodZyOPf/tiBXzc j6HMZcBoPsL/mZs/0GCN1f3JSPORGalqrWjqGAG5Q62IuvW3sRV3SJl7fPz7syjDK20eSRfeGGwo+ 02pgXbN+UktlrmioYNMVAyBFRbIcikAEa8WIvD2mnQS+oHASgnk0ODcg6Ypdly2lgV86hJGjvwrIJ 9fa4+vVqODzlpkKT8p4YyeYdLHmEWksgYoXx7fv59k4wZhVBYA+yQKNOTQ/rtEE0tg4oo7upfuxp/ 9DFbtEfgEcPMN/3cU4MxYO7oBliTj3yGdTQTVR8Q00CgaguiBM0Yra3bWLD4t+dhivj3CMWI9dyQq cS2n56og==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1vzcbj-00000007cEr-06XI; Mon, 09 Mar 2026 15:33:23 +0000 Date: Mon, 9 Mar 2026 08:33:23 -0700 From: Christoph Hellwig To: "JP Kobryn (Meta)" Cc: kwankhede@nvidia.com, alex@shazbot.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, malmond@meta.com, kernel-team@meta.com Subject: Re: [PATCH] vfio/mdev: make VFIO_MDEV user-visible in Kconfig Message-ID: References: <20260305233526.32607-1-jp.kobryn@linux.dev> 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: <20260305233526.32607-1-jp.kobryn@linux.dev> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Thu, Mar 05, 2026 at 03:35:26PM -0800, JP Kobryn (Meta) wrote: > From: JP Kobryn > > VFIO_MDEV is currently hidden and only enabled via select by in-tree > consumers. Out-of-tree drivers such as the NVIDIA vGPU rely on the mdev > framework but have no way to trigger its selection. > > Add a description and help text to make VFIO_MDEV visible and directly > selectable. Just as last time: no. out of tree drivers don't matter to the kernel, and add totally pointless user visible options for them is of course a no-go.