From patchwork Fri Feb 28 12:24:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Beulich X-Patchwork-Id: 11412161 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3A5FE14BC for ; Fri, 28 Feb 2020 12:26:06 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 208F5246A3 for ; Fri, 28 Feb 2020 12:26:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 208F5246A3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1j7eh5-0000Gx-4F; Fri, 28 Feb 2020 12:24:39 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1j7eh3-0000Gr-5J for xen-devel@lists.xenproject.org; Fri, 28 Feb 2020 12:24:37 +0000 X-Inumbo-ID: 4822ca1e-5a25-11ea-83b0-bc764e2007e4 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 4822ca1e-5a25-11ea-83b0-bc764e2007e4; Fri, 28 Feb 2020 12:24:36 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 1141CB00D; Fri, 28 Feb 2020 12:24:35 +0000 (UTC) To: "xen-devel@lists.xenproject.org" From: Jan Beulich Message-ID: Date: Fri, 28 Feb 2020 13:24:44 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 Content-Language: en-US Subject: [Xen-devel] [PATCH 0/5] IOMMU: restrict visibility/scope if certain variables X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Kevin Tian , Stefano Stabellini , Julien Grall , Wei Liu , Konrad Wilk , George Dunlap , Andrew Cooper , Ian Jackson Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" A number of the command line controlled variables are x86- or even x86-HVM-specific. Don't have those variables elsewhere in the first place (in some cases replace them by a #define), and as a result also don't silently accept such "iommu=" sub-options which in fact have no effect. 1: iommu_intremap is x86-only 2: iommu_intpost is x86/HVM-only 3: iommu_igfx is x86-only 4: iommu_qinval is x86-only 5: iommu_snoop is x86/HVM-only The series contextually depends on "AMD/IOMMU: without XT, x2APIC needs to be forced into physical mode" Jan