From patchwork Sun Apr 11 12:08:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 1464817 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=Bj3x7Hkd; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4FJB2X3FHrz9sVw for ; Sun, 11 Apr 2021 22:27:14 +1000 (AEST) Received: from localhost ([::1]:54780 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lVZBI-0004s6-DO for incoming@patchwork.ozlabs.org; Sun, 11 Apr 2021 08:27:12 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47442) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lVYw0-0000aG-QJ for qemu-devel@nongnu.org; Sun, 11 Apr 2021 08:11:24 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:54442) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lVYvm-0002nT-7e for qemu-devel@nongnu.org; Sun, 11 Apr 2021 08:11:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1618143067; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/99CHcvY8bNJEW33wV04VMw7Zx3w8Yp9I4RTtK6C260=; b=Bj3x7HkdVfiJIt6lpF4k8+CG3KAA033Vzb5pqvHoeRAKcQ7f5iTpXYVpO4HTh1M3zFHHkG HmkxRMMTwIVPVVrSEZLtxxCN9ADR1fbqukOy/EBbolY5WU1T23mSnW8lbalzypPFnXpvna E2EsNC8SqCHj2DgKJRVwOr/rv++dtP8= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-166-zKgH-YMVN0qEM1R8iTrFQQ-1; Sun, 11 Apr 2021 08:11:05 -0400 X-MC-Unique: zKgH-YMVN0qEM1R8iTrFQQ-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E139A10054F6; Sun, 11 Apr 2021 12:11:03 +0000 (UTC) Received: from laptop.redhat.com (ovpn-112-22.ams2.redhat.com [10.36.112.22]) by smtp.corp.redhat.com (Postfix) with ESMTP id 49770101E5AF; Sun, 11 Apr 2021 12:10:48 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, alex.williamson@redhat.com Subject: [RFC v9 08/29] memory: Add IOMMU_ATTR_MSI_TRANSLATE IOMMU memory region attribute Date: Sun, 11 Apr 2021 14:08:51 +0200 Message-Id: <20210411120912.15770-9-eric.auger@redhat.com> In-Reply-To: <20210411120912.15770-1-eric.auger@redhat.com> References: <20210411120912.15770-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eric.auger@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.133.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, jacob.jun.pan@linux.intel.com, jean-philippe@linaro.org, tn@semihalf.com, chenxiang66@hisilicon.com, jiangkunkun@huawei.com, shameerali.kolothum.thodi@huawei.com, nicoleotsuka@gmail.com, vivek.gautam@arm.com, vdumpa@nvidia.com, yi.l.liu@intel.com, peterx@redhat.com, zhangfei.gao@gmail.com, yuzenghui@huawei.com, zhukeqian1@huawei.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" We introduce a new IOMMU Memory Region attribute, IOMMU_ATTR_MSI_TRANSLATE which tells whether the virtual IOMMU translates MSIs. ARM SMMU will expose this attribute since, as opposed to Intel DMAR, MSIs are translated as any other DMA requests. Signed-off-by: Eric Auger --- include/exec/memory.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/exec/memory.h b/include/exec/memory.h index 3af3cc1adb..ac8521b29a 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -275,6 +275,7 @@ typedef struct MemoryRegionClass { enum IOMMUMemoryRegionAttr { IOMMU_ATTR_SPAPR_TCE_FD, IOMMU_ATTR_VFIO_NESTED, + IOMMU_ATTR_MSI_TRANSLATE, }; /*