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 DC14BC433E6 for ; Fri, 28 Aug 2020 15:28:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BE4C420825 for ; Fri, 28 Aug 2020 15:28:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728084AbgH1P2I (ORCPT ); Fri, 28 Aug 2020 11:28:08 -0400 Received: from mx2.suse.de ([195.135.220.15]:51000 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728310AbgH1P2C (ORCPT ); Fri, 28 Aug 2020 11:28:02 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id E8DB1AEA5; Fri, 28 Aug 2020 15:28:33 +0000 (UTC) Date: Fri, 28 Aug 2020 17:27:59 +0200 From: "jroedel@suse.de" To: Felix Kuehling Cc: "Deucher, Alexander" , Joerg Roedel , "iommu@lists.linux-foundation.org" , "Huang, Ray" , "Koenig, Christian" , "Lendacky, Thomas" , "Suthikulpanit, Suravee" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH 0/2] iommu/amd: Fix IOMMUv2 devices when SME is active Message-ID: <20200828152759.GX3354@suse.de> References: <20200824105415.21000-1-joro@8bytes.org> <34db343f-cd23-09af-3bc5-29b9d385f85d@amd.com> <20200828134639.GW3354@suse.de> <60067932-dbf4-d67b-cf11-4dd2b016ed63@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <60067932-dbf4-d67b-cf11-4dd2b016ed63@amd.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 Hi Felix, On Fri, Aug 28, 2020 at 09:54:59AM -0400, Felix Kuehling wrote: > Yes, we're working on this. IOMMUv2 is only needed for KFD. It's not > needed for graphics. And we're making it optional for KFD as well. Okay, KFD should fail gracefully because it can't initialize the device's iommuv2 functionality. Regards, Joerg