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 smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 32BC4C433EF for ; Thu, 23 Jun 2022 08:15:30 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id C0975846BE; Thu, 23 Jun 2022 08:15:29 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org C0975846BE X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gCxoFeh2BaeL; Thu, 23 Jun 2022 08:15:28 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp1.osuosl.org (Postfix) with ESMTPS id 3CBA8845BC; Thu, 23 Jun 2022 08:15:28 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org 3CBA8845BC Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 114FEC0032; Thu, 23 Jun 2022 08:15:28 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [IPv6:2605:bc80:3010::138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 48A06C002D for ; Thu, 23 Jun 2022 08:15:26 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 0E69E845CB for ; Thu, 23 Jun 2022 08:15:26 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org 0E69E845CB X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UMrqqqCKo3US for ; Thu, 23 Jun 2022 08:15:25 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org C3059845BC Received: from theia.8bytes.org (8bytes.org [IPv6:2a01:238:4383:600:38bc:a715:4b6d:a889]) by smtp1.osuosl.org (Postfix) with ESMTPS id C3059845BC for ; Thu, 23 Jun 2022 08:15:24 +0000 (UTC) Received: by theia.8bytes.org (Postfix, from userid 1000) id 313C9447; Thu, 23 Jun 2022 10:15:22 +0200 (CEST) Date: Thu, 23 Jun 2022 10:15:21 +0200 From: Joerg Roedel To: Vasant Hegde Subject: Re: [PATCH v1 0/7] iommu/amd: Add Generic IO Page Table Framework Support for v2 Page Table Message-ID: References: <20220603112107.8603-1-vasant.hegde@amd.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220603112107.8603-1-vasant.hegde@amd.com> Cc: iommu@lists.linux-foundation.org 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 Fri, Jun 03, 2022 at 04:51:00PM +0530, Vasant Hegde wrote: > - Part 1 (patch 1-4 and 6) > Refactor the current IOMMU page table code to adopt the generic IO page > table framework, and add AMD IOMMU Guest (v2) page table management code. > > - Part 2 (patch 5) > Add support for the AMD IOMMU Guest IO Protection feature (GIOV) > where requests from the I/O device without a PASID are treated as > if they have PASID of 0. > > - Part 3 (patch 7) > Introduce new "amd_iommu_pgtable" command-line to allow users > to select the mode of operation (v1 or v2). Something I didn't get entirely from the review is support level of the amd_iommu_v2 driver. I think it will continue to work and the requirement that the device identity maps DMA requests without PASID is removed, right? Regards, Joerg _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu