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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 68511C433EF for ; Wed, 17 Nov 2021 10:01:51 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 07D3C61AED for ; Wed, 17 Nov 2021 10:01:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 07D3C61AED Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id CA32740931; Wed, 17 Nov 2021 10:01:50 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id F_f3DFsvC5O4; Wed, 17 Nov 2021 10:01:50 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp4.osuosl.org (Postfix) with ESMTPS id C85BA4090A; Wed, 17 Nov 2021 10:01:49 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id A1554C002E; Wed, 17 Nov 2021 10:01:49 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 2F9CBC0012 for ; Wed, 17 Nov 2021 10:01:48 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id 1DD8960A5D for ; Wed, 17 Nov 2021 10:01:48 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id IxXdG6YOxtQu for ; Wed, 17 Nov 2021 10:01:47 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by smtp3.osuosl.org (Postfix) with ESMTPS id 8C03660A52 for ; Wed, 17 Nov 2021 10:01:47 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id C89DA68B05; Wed, 17 Nov 2021 11:01:42 +0100 (CET) Date: Wed, 17 Nov 2021 11:01:42 +0100 From: Christoph Hellwig To: Tianyu Lan Subject: Re: [PATCH 3/5] hyperv/IOMMU: Enable swiotlb bounce buffer for Isolation VM Message-ID: <20211117100142.GB10330@lst.de> References: <20211116153923.196763-1-ltykernel@gmail.com> <20211116153923.196763-4-ltykernel@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20211116153923.196763-4-ltykernel@gmail.com> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: linux-hyperv@vger.kernel.org, brijesh.singh@amd.com, peterz@infradead.org, dave.hansen@linux.intel.com, dave.hansen@intel.com, hpa@zytor.com, kys@microsoft.com, will@kernel.org, boris.ostrovsky@oracle.com, wei.liu@kernel.org, sstabellini@kernel.org, sthemmin@microsoft.com, linux-scsi@vger.kernel.org, x86@kernel.org, decui@microsoft.com, hch@lst.de, michael.h.kelley@microsoft.com, mingo@redhat.com, kuba@kernel.org, haiyangz@microsoft.com, parri.andrea@gmail.com, thomas.lendacky@amd.com, Tianyu Lan , konrad.wilk@oracle.com, jejb@linux.ibm.com, bp@alien8.de, luto@kernel.org, xen-devel@lists.xenproject.org, tglx@linutronix.de, jgross@suse.com, martin.petersen@oracle.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, vkuznets@redhat.com, robin.murphy@arm.com, davem@davemloft.net X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" This doesn't really have much to do with normal DMA mapping, so why does this direct through the dma ops? _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu