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=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 65603C35669 for ; Sat, 22 Feb 2020 23:39:37 +0000 (UTC) Received: from hemlock.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 3767C206EF for ; Sat, 22 Feb 2020 23:39:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3767C206EF Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 21F758791E; Sat, 22 Feb 2020 23:39:37 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Zyww7TAiPqqO; Sat, 22 Feb 2020 23:39:36 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by hemlock.osuosl.org (Postfix) with ESMTP id 9938C8712D; Sat, 22 Feb 2020 23:39:36 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 8D07DC1AE2; Sat, 22 Feb 2020 23:39:36 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 74BC2C013E for ; Sat, 22 Feb 2020 23:39:35 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 5E55C84481 for ; Sat, 22 Feb 2020 23:39:35 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9rckYx6fdrv8 for ; Sat, 22 Feb 2020 23:39:33 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by fraxinus.osuosl.org (Postfix) with ESMTPS id 2B60384471 for ; Sat, 22 Feb 2020 23:39:33 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Feb 2020 15:39:32 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,473,1574150400"; d="scan'208";a="255199489" Received: from orsmsx110.amr.corp.intel.com ([10.22.240.8]) by orsmga002.jf.intel.com with ESMTP; 22 Feb 2020 15:39:32 -0800 Received: from orsmsx111.amr.corp.intel.com (10.22.240.12) by ORSMSX110.amr.corp.intel.com (10.22.240.8) with Microsoft SMTP Server (TLS) id 14.3.439.0; Sat, 22 Feb 2020 15:39:31 -0800 Received: from orsmsx114.amr.corp.intel.com ([169.254.8.140]) by ORSMSX111.amr.corp.intel.com ([169.254.12.135]) with mapi id 14.03.0439.000; Sat, 22 Feb 2020 15:39:31 -0800 From: "Prakhya, Sai Praneeth" To: Lu Baolu , "iommu@lists.linux-foundation.org" Subject: RE: [PATCH V2 1/5] iommu: Add dev_def_domain_type() call back function to iommu_ops Thread-Topic: [PATCH V2 1/5] iommu: Add dev_def_domain_type() call back function to iommu_ops Thread-Index: AQHV6dkGEw2IVdZfXkGFluqdj8ahSqgn3sWQ Date: Sat, 22 Feb 2020 23:39:31 +0000 Message-ID: References: <297e01568e24d1537e0d7d6c088e363552b8ea49.1581619464.git.sai.praneeth.prakhya@intel.com> <7c34585c-0ec4-09d9-dd4a-604f196a2ca8@linux.intel.com> In-Reply-To: <7c34585c-0ec4-09d9-dd4a-604f196a2ca8@linux.intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-version: 11.2.0.6 dlp-reaction: no-action x-originating-ip: [10.22.254.140] MIME-Version: 1.0 Cc: "Raj, Ashok" , Will Deacon , Robin Murphy , Christoph Hellwig 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" > > On 2020/2/17 5:57, Sai Praneeth Prakhya wrote: > > When user requests kernel to change the default domain type of a group > > through sysfs, kernel has to make sure that it's ok to change the > > domain type of every device in the group to the requested domain > > (every device may not support both the domain types i.e. DMA and > > identity). Hence, add a call back function that could be implemented > > per architecture that performs the above check. > > > > Cc: Christoph Hellwig > > Cc: Joerg Roedel > > Cc: Ashok Raj > > Cc: Will Deacon > > Cc: Lu Baolu > > Cc: Sohil Mehta > > Cc: Robin Murphy > > Cc: Jacob Pan > > Signed-off-by: Sai Praneeth Prakhya > > --- > > include/linux/iommu.h | 3 +++ > > 1 file changed, 3 insertions(+) > > > > diff --git a/include/linux/iommu.h b/include/linux/iommu.h index > > d1b5f4d98569..3f4aaad0aeb7 100644 > > --- a/include/linux/iommu.h > > +++ b/include/linux/iommu.h > > @@ -248,6 +248,7 @@ struct iommu_iotlb_gather { > > * @cache_invalidate: invalidate translation caches > > * @sva_bind_gpasid: bind guest pasid and mm > > * @sva_unbind_gpasid: unbind guest pasid and mm > > + * @dev_def_domain_type: Return the required default domain type for > > + a device > > Can you please define the return value of this callback? Sure! I will add it in the next version Regards, Sai _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu