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=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT autolearn=ham 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 A0272C07542 for ; Mon, 27 May 2019 09:55:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7D2BA2173C for ; Mon, 27 May 2019 09:55:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726711AbfE0Jzk (ORCPT ); Mon, 27 May 2019 05:55:40 -0400 Received: from 8bytes.org ([81.169.241.247]:40216 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725991AbfE0Jzk (ORCPT ); Mon, 27 May 2019 05:55:40 -0400 Received: by theia.8bytes.org (Postfix, from userid 1000) id 311DE272; Mon, 27 May 2019 11:55:38 +0200 (CEST) Date: Mon, 27 May 2019 11:55:36 +0200 From: Joerg Roedel To: Jacob Pan Cc: LKML , iommu@lists.linux-foundation.org, David Woodhouse , Raj Ashok , Lu Baolu Subject: Re: [PATCH] iommu/vt-d: Fix bind svm with multiple devices Message-ID: <20190527095536.GA8420@8bytes.org> References: <1557343366-18686-1-git-send-email-jacob.jun.pan@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1557343366-18686-1-git-send-email-jacob.jun.pan@linux.intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 08, 2019 at 12:22:46PM -0700, Jacob Pan wrote: > If multiple devices try to bind to the same mm/PASID, we need to > set up first level PASID entries for all the devices. The current > code does not consider this case which results in failed DMA for > devices after the first bind. > > Signed-off-by: Jacob Pan > Reported-by: Mike Campin > --- > drivers/iommu/intel-svm.c | 15 +++++++++++++++ > 1 file changed, 15 insertions(+) Applied for v5.3, thanks. 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=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT autolearn=ham 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 14F4FC07542 for ; Mon, 27 May 2019 09:56:00 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (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 DD65A21734 for ; Mon, 27 May 2019 09:55:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DD65A21734 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id A5A3C170A; Mon, 27 May 2019 09:55:59 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 527061707 for ; Mon, 27 May 2019 09:55:40 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from theia.8bytes.org (8bytes.org [81.169.241.247]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id D8F41A9 for ; Mon, 27 May 2019 09:55:39 +0000 (UTC) Received: by theia.8bytes.org (Postfix, from userid 1000) id 311DE272; Mon, 27 May 2019 11:55:38 +0200 (CEST) Date: Mon, 27 May 2019 11:55:36 +0200 From: Joerg Roedel To: Jacob Pan Subject: Re: [PATCH] iommu/vt-d: Fix bind svm with multiple devices Message-ID: <20190527095536.GA8420@8bytes.org> References: <1557343366-18686-1-git-send-email-jacob.jun.pan@linux.intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1557343366-18686-1-git-send-email-jacob.jun.pan@linux.intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Cc: iommu@lists.linux-foundation.org, David Woodhouse , LKML , Raj Ashok X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 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 Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org On Wed, May 08, 2019 at 12:22:46PM -0700, Jacob Pan wrote: > If multiple devices try to bind to the same mm/PASID, we need to > set up first level PASID entries for all the devices. The current > code does not consider this case which results in failed DMA for > devices after the first bind. > > Signed-off-by: Jacob Pan > Reported-by: Mike Campin > --- > drivers/iommu/intel-svm.c | 15 +++++++++++++++ > 1 file changed, 15 insertions(+) Applied for v5.3, thanks. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu