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 X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3CCA4C4320E for ; Thu, 12 Aug 2021 12:27:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 124AA6108C for ; Thu, 12 Aug 2021 12:27:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237479AbhHLM2K (ORCPT ); Thu, 12 Aug 2021 08:28:10 -0400 Received: from verein.lst.de ([213.95.11.211]:44164 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236519AbhHLM2J (ORCPT ); Thu, 12 Aug 2021 08:28:09 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id 9A64768B05; Thu, 12 Aug 2021 14:27:41 +0200 (CEST) Date: Thu, 12 Aug 2021 14:27:41 +0200 From: Christoph Hellwig To: Tianyu Lan Cc: kys@microsoft.com, haiyangz@microsoft.com, sthemmin@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, konrad.wilk@oracle.com, boris.ostrovsky@oracle.com, jgross@suse.com, sstabellini@kernel.org, joro@8bytes.org, will@kernel.org, davem@davemloft.net, kuba@kernel.org, jejb@linux.ibm.com, martin.petersen@oracle.com, arnd@arndb.de, hch@lst.de, m.szyprowski@samsung.com, robin.murphy@arm.com, thomas.lendacky@amd.com, brijesh.singh@amd.com, ardb@kernel.org, Tianyu.Lan@microsoft.com, pgonda@google.com, martin.b.radev@gmail.com, akpm@linux-foundation.org, kirill.shutemov@linux.intel.com, rppt@kernel.org, sfr@canb.auug.org.au, saravanand@fb.com, krish.sadhukhan@oracle.com, aneesh.kumar@linux.ibm.com, xen-devel@lists.xenproject.org, rientjes@google.com, hannes@cmpxchg.org, tj@kernel.org, michael.h.kelley@microsoft.com, iommu@lists.linux-foundation.org, linux-arch@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, netdev@vger.kernel.org, vkuznets@redhat.com, parri.andrea@gmail.com, dave.hansen@intel.com Subject: Re: [PATCH V3 10/13] x86/Swiotlb: Add Swiotlb bounce buffer remap function for HV IVM Message-ID: <20210812122741.GC19050@lst.de> References: <20210809175620.720923-1-ltykernel@gmail.com> <20210809175620.720923-11-ltykernel@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210809175620.720923-11-ltykernel@gmail.com> User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is still broken. You need to make sure the actual DMA allocations do have struct page backing. 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 X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 23A82C4338F for ; Thu, 12 Aug 2021 12:27:52 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (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 9B4A96104F for ; Thu, 12 Aug 2021 12:27:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 9B4A96104F 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 smtp2.osuosl.org (Postfix) with ESMTP id 55904401C6; Thu, 12 Aug 2021 12:27:51 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VeCNkUlqzrdY; Thu, 12 Aug 2021 12:27:47 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp2.osuosl.org (Postfix) with ESMTPS id 1809940017; Thu, 12 Aug 2021 12:27:47 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id E6ED6C0010; Thu, 12 Aug 2021 12:27:46 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id CA6AAC000E for ; Thu, 12 Aug 2021 12:27:45 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id B790F40153 for ; Thu, 12 Aug 2021 12:27:45 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MKaakbmh3Pd8 for ; Thu, 12 Aug 2021 12:27:45 +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 smtp2.osuosl.org (Postfix) with ESMTPS id ED72840017 for ; Thu, 12 Aug 2021 12:27:44 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 9A64768B05; Thu, 12 Aug 2021 14:27:41 +0200 (CEST) Date: Thu, 12 Aug 2021 14:27:41 +0200 From: Christoph Hellwig To: Tianyu Lan Subject: Re: [PATCH V3 10/13] x86/Swiotlb: Add Swiotlb bounce buffer remap function for HV IVM Message-ID: <20210812122741.GC19050@lst.de> References: <20210809175620.720923-1-ltykernel@gmail.com> <20210809175620.720923-11-ltykernel@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210809175620.720923-11-ltykernel@gmail.com> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: parri.andrea@gmail.com, linux-hyperv@vger.kernel.org, brijesh.singh@amd.com, peterz@infradead.org, dave.hansen@linux.intel.com, vkuznets@redhat.com, hpa@zytor.com, kys@microsoft.com, will@kernel.org, boris.ostrovsky@oracle.com, linux-arch@vger.kernel.org, sfr@canb.auug.org.au, wei.liu@kernel.org, sstabellini@kernel.org, sthemmin@microsoft.com, xen-devel@lists.xenproject.org, linux-scsi@vger.kernel.org, aneesh.kumar@linux.ibm.com, x86@kernel.org, decui@microsoft.com, hch@lst.de, michael.h.kelley@microsoft.com, mingo@redhat.com, pgonda@google.com, rientjes@google.com, kuba@kernel.org, jejb@linux.ibm.com, martin.b.radev@gmail.com, thomas.lendacky@amd.com, Tianyu.Lan@microsoft.com, arnd@arndb.de, konrad.wilk@oracle.com, haiyangz@microsoft.com, bp@alien8.de, luto@kernel.org, krish.sadhukhan@oracle.com, tglx@linutronix.de, akpm@linux-foundation.org, jgross@suse.com, martin.petersen@oracle.com, saravanand@fb.com, netdev@vger.kernel.org, dave.hansen@intel.com, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, rppt@kernel.org, hannes@cmpxchg.org, tj@kernel.org, ardb@kernel.org, robin.murphy@arm.com, davem@davemloft.net, kirill.shutemov@linux.intel.com 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 is still broken. You need to make sure the actual DMA allocations do have struct page backing. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu