From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0B788C77B7A for ; Fri, 19 May 2023 12:59:26 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.537057.835806 (Exim 4.92) (envelope-from ) id 1pzzhH-0002kR-DT; Fri, 19 May 2023 12:59:03 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 537057.835806; Fri, 19 May 2023 12:59:03 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pzzhH-0002kK-AM; Fri, 19 May 2023 12:59:03 +0000 Received: by outflank-mailman (input) for mailman id 537057; Fri, 19 May 2023 12:59:01 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pzzhF-0002kE-IN for xen-devel@lists.xenproject.org; Fri, 19 May 2023 12:59:01 +0000 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id ec76cf31-f644-11ed-b22d-6b7b168915f2; Fri, 19 May 2023 14:59:00 +0200 (CEST) Received: by verein.lst.de (Postfix, from userid 2407) id 725BF68C7B; Fri, 19 May 2023 14:58:57 +0200 (CEST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: ec76cf31-f644-11ed-b22d-6b7b168915f2 Date: Fri, 19 May 2023 14:58:57 +0200 From: Christoph Hellwig To: Andrew Cooper Cc: Christoph Hellwig , Marek =?iso-8859-1?Q?Marczykowski-G=F3recki?= , Juergen Gross , Stefano Stabellini , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Ben Skeggs , Karol Herbst , Lyude Paul , xen-devel@lists.xenproject.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, nouveau@lists.freedesktop.org Subject: Re: [PATCH 2/4] x86: always initialize xen-swiotlb when xen-pcifront is enabling Message-ID: <20230519125857.GA6994@lst.de> References: <20230518134253.909623-1-hch@lst.de> <20230518134253.909623-3-hch@lst.de> <20230519040405.GA10818@lst.de> <20230519124118.GA5869@lst.de> <8617570c-6dc4-74f5-7418-98f04f7e0ece@citrix.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8617570c-6dc4-74f5-7418-98f04f7e0ece@citrix.com> User-Agent: Mutt/1.5.17 (2007-11-01) On Fri, May 19, 2023 at 01:49:46PM +0100, Andrew Cooper wrote: > > The alternative would be to finally merge swiotlb-xen into swiotlb, in > > which case we might be able to do this later. Let me see what I can > > do there. > > If that is an option, it would be great to reduce the special-cashing. I think it's doable, and I've been wanting it for a while. I just need motivated testers, but it seems like I just found at least two :)