Received: by 2002:a05:6a10:6006:0:0:0:0 with SMTP id w6csp1281150pxa; Fri, 28 Aug 2020 08:29:50 -0700 (PDT) X-Google-Smtp-Source: ABdhPJw9RnGePzOSAeJ3KtIHamNdHyimfcBpET+X6a77/OsOn2rjgAizxK3TX5jp+CNSFwSFW1uV X-Received: by 2002:a17:906:17c5:: with SMTP id u5mr2322181eje.453.1598628589807; Fri, 28 Aug 2020 08:29:49 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1598628589; cv=none; d=google.com; s=arc-20160816; b=HqCK1yB3QWNnm+oLVY+C12ioaTj/vLrIO/ZjtPZF1Ur7nAEIDgfXoOyvFWSU57CUjD AhHXWSOADzuF70GJHdeitdCpmgGXUV1O25Htz+pWeODRSygBEGfU3r9K8ue+0wBYtjnI hsqxw8R0AysgZ2jth8R7Et5zFBFrp863zZdCCUztttQ+FQgFKQcUBGMM/8K0BGrjpi+G zEqaCfAklvV82/eHLq4keHZWioHIif3nfyGQWirm07ORJt/UVDNvHF9azo6mKRmkWzDZ V1p0TjBRoQ8KFjudeNyu/0mlsamQ6oi8beKfRs6b8M66MNlcUyaUj25QEEN9d8xt9UsD 73Tw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=VK+rjgiE3Vg8EBQudjBUdUg2hzQAAjoCu7AxC0Dpq/4=; b=YgafeoyWdTtWyAm2k+J+WYw0amF4fUSh7zFYcsPssA5G6kQ6ED4Yly96lwDScxh6qg q3349ssLQuXj9vbj7SfaP/iSZwI3CEg9uYROThV6uBYEFlY9AE5IyXSsuvSypeqY2nmv Qz4i6tsRUERSjvEi316wBUCmmcgEs3TjDGi7G9MrGlP7EEENw9Di/whIj0WTxVFV1Mev LSxBG9CH9BHO5A3nOCjltu3rDMWuWsApEOCLquj30S9yaGO7H0/N/dldER14TgsCyQZl JukBx6UUTNOIP2dv85mQKUPNJOMvoEfaK1yREyADh8x2MLT8Aio0CyssEjmXqXesGepA dHIQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id i7si928275edg.600.2020.08.28.08.29.27; Fri, 28 Aug 2020 08:29:49 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728348AbgH1P2F (ORCPT + 99 others); Fri, 28 Aug 2020 11:28:05 -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