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[209.51.188.17]) by mx.google.com with ESMTPS id n8si2721918ybk.265.2020.06.11.08.16.43 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 11 Jun 2020 08:16:43 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=eLS9FqJU; spf=pass (google.com: domain of qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: from localhost ([::1]:54182 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jjOwd-0006cs-6I for alex.bennee@linaro.org; Thu, 11 Jun 2020 11:16:43 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51374) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jjOsa-0004eG-Ox for qemu-devel@nongnu.org; Thu, 11 Jun 2020 11:12:33 -0400 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:51270 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jjOsY-0003Sm-Dd for qemu-devel@nongnu.org; Thu, 11 Jun 2020 11:12:32 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1591888349; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=CtJm0H3P5LKt6WiNiZIWk44Frw7Af0Oa30M6sR7arrU=; b=eLS9FqJUdxKCo4b04LRhYvRvpqTH5lcr3gYdaNCaK1OyD1eSOGxmC8S9rzWCJFDchgw4Xb HzDjaGM9LXZbH1b6i/wSwPi0IldJJYZgQ03OlKqj0izDcvTdazMawvgVcYJIbFJaZHAq1x W1vu0BRg009FDS75cDq8DiZH+b5WLOE= 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-127-XzDs81kuNW6cuUtdoCSTpg-1; Thu, 11 Jun 2020 11:12:25 -0400 X-MC-Unique: XzDs81kuNW6cuUtdoCSTpg-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A06708018A5; Thu, 11 Jun 2020 15:12:23 +0000 (UTC) Received: from laptop.redhat.com (ovpn-114-197.ams2.redhat.com [10.36.114.197]) by smtp.corp.redhat.com (Postfix) with ESMTP id E2A7C8FF81; Thu, 11 Jun 2020 15:12:12 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, peter.maydell@linaro.org, mst@redhat.com, armbru@redhat.com, pbonzini@redhat.com, jean-philippe@linaro.org, bbhushan2@marvell.com, peterx@redhat.com Subject: [PATCH v3 0/5] VIRTIO-IOMMU probe request support and MSI bypass on ARM Date: Thu, 11 Jun 2020 17:12:04 +0200 Message-Id: <20200611151209.22547-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=207.211.31.81; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/11 03:29:33 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN 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: , Errors-To: qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org Sender: "Qemu-devel" X-TUID: +8Hc46fGYAT+ By default the virtio-iommu translates MSI transactions. This behavior is inherited from ARM SMMU. However the virt machine code knows where the MSI doorbells are, so we can easily declare those regions as VIRTIO_IOMMU_RESV_MEM_T_MSI. With that setting the guest iommu subsystem will not need to map MSIs. This setup will simplify the VFIO integration. In this series, the ITS or GICV2M doorbells are declared as HW MSI regions to be bypassed by the VIRTIO-IOMMU. This also paves the way to the x86 integration where the MSI region, [0xFEE00000,0xFEEFFFFF], will be exposed by the q35 machine. However this will be handled in a separate series when not-DT support gets resolved. Best Regards Eric This series can be found at: https://github.com/eauger/qemu/tree/v5.0.0-virtio-iommu-msi-bypass-v3 History: v2 -> v3: - Introduce VIRT_MSI_CTRL_NONE in VirtMSIControllerType - do not fill the remainder of the probe buffer v1 -> v2: - check which MSI controller is in use and advertise the corresponding MSI doorbell - managed for both ITS and GICv2M - various fixes spotted by Peter and Jean-Philippe, see individual logs v1: Most of those patches were respinned from [PATCH for-5.0 v11 00/20] VIRTIO-IOMMU device except the last one which is new Eric Auger (5): qdev: Introduce DEFINE_PROP_RESERVED_REGION virtio-iommu: Implement RESV_MEM probe request virtio-iommu: Handle reserved regions in the translation process virtio-iommu-pci: Add array of Interval properties hw/arm/virt: Let the virtio-iommu bypass MSIs include/exec/memory.h | 6 ++ include/hw/arm/virt.h | 7 ++ include/hw/qdev-properties.h | 3 + include/hw/virtio/virtio-iommu.h | 2 + include/qemu/typedefs.h | 1 + hw/arm/virt.c | 18 +++++ hw/core/qdev-properties.c | 89 +++++++++++++++++++++++++ hw/virtio/virtio-iommu-pci.c | 3 + hw/virtio/virtio-iommu.c | 111 +++++++++++++++++++++++++++++-- hw/virtio/trace-events | 1 + 10 files changed, 237 insertions(+), 4 deletions(-) -- 2.20.1