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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 2882CCCA473 for ; Wed, 6 Jul 2022 09:12:02 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id A2458408A6; Wed, 6 Jul 2022 09:12:01 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org A2458408A6 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 N8M6W_21xk6f; Wed, 6 Jul 2022 09:12:00 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp4.osuosl.org (Postfix) with ESMTPS id 521F9408A1; Wed, 6 Jul 2022 09:12:00 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org 521F9408A1 Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 2FEFCC0033; Wed, 6 Jul 2022 09:12:00 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 90B4EC002D for ; Wed, 6 Jul 2022 09:11:58 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 70A724047D for ; Wed, 6 Jul 2022 09:11:58 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp2.osuosl.org 70A724047D 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 F-DsXv8k8d7x for ; Wed, 6 Jul 2022 09:11:57 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp2.osuosl.org 24E014016A Received: from theia.8bytes.org (8bytes.org [81.169.241.247]) by smtp2.osuosl.org (Postfix) with ESMTPS id 24E014016A for ; Wed, 6 Jul 2022 09:11:57 +0000 (UTC) Received: by theia.8bytes.org (Postfix, from userid 1000) id EAA4C4CC; Wed, 6 Jul 2022 11:11:53 +0200 (CEST) Date: Wed, 6 Jul 2022 11:11:48 +0200 From: Joerg Roedel To: Vasant Hegde Subject: Re: [PATCH v1 7/7] iommu/amd: Introduce amd_iommu_pgtable command-line option Message-ID: References: <20220603112107.8603-1-vasant.hegde@amd.com> <20220603112107.8603-8-vasant.hegde@amd.com> <19df95e3-3598-8414-0201-1ebc30b6f159@amd.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <19df95e3-3598-8414-0201-1ebc30b6f159@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 Tue, Jun 28, 2022 at 01:23:52PM +0530, Vasant Hegde wrote: > I think it will complicate the parsing logic. We do have `amd_iommu=off` option. > How are we going to handle `amd_iommu=off,[pgtable_v1/v2]` ? In that case everything except 'off' will be ignored. The driver might set its internal variables, but this has no effect as the driver never initializes. Regards, Joerg _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu