From nobody Sun Nov 24 10:51:31 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=amd.com); dmarc=pass(p=quarantine dis=none) header.from=amd.com ARC-Seal: i=2; a=rsa-sha256; t=1725444337; cv=pass; d=zohomail.com; s=zohoarc; b=Vkqtsi177emFscgOKljO071yxIcAs0YSuykPui/SnuvzZIQSl1+OQsC8GiBzDUWYZl3xhKmpbMfmCEcsoAc8l0xiWHuScwooKVDFXc4KfXcmHHeTJVhXcoOVa/TpDkOrsACRtQSlw+C7TVNH0XFhMmjXeNMsMBr3dUMKY7piP/M= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1725444337; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=CEkPYhh9Ha0mFPI7Ylba9YXaKH/58LyVQUwhqZ6/xYw=; b=h7vNh4MYhhYsjsy1P8aWawrTxeeZnT4VQKMGrJQe/iKS0Kq1r30JFIEm0oPAB7OqvNZOMYkFk4mbZNODt1xhKtpQWnIhDSym63FXKPwmVBoHgKwaShbJXNmabowGUVLGKbI5RRmOKbERbWTazmsJ0uzFtxGP0etQibQ15DCv1Fw= ARC-Authentication-Results: i=2; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=amd.com); dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1725444337334881.923409725856; Wed, 4 Sep 2024 03:05:37 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1slmrj-0000Lb-U4; Wed, 04 Sep 2024 06:03:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1slmri-0000K3-Fr for qemu-devel@nongnu.org; Wed, 04 Sep 2024 06:03:54 -0400 Received: from mail-co1nam11on20624.outbound.protection.outlook.com ([2a01:111:f403:2416::624] helo=NAM11-CO1-obe.outbound.protection.outlook.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1slmrf-0005zz-P4 for qemu-devel@nongnu.org; Wed, 04 Sep 2024 06:03:53 -0400 Received: from SJ0PR05CA0140.namprd05.prod.outlook.com (2603:10b6:a03:33d::25) by SJ0PR12MB7459.namprd12.prod.outlook.com (2603:10b6:a03:48d::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7918.27; Wed, 4 Sep 2024 10:03:43 +0000 Received: from MWH0EPF000989EC.namprd02.prod.outlook.com (2603:10b6:a03:33d:cafe::2e) by SJ0PR05CA0140.outlook.office365.com (2603:10b6:a03:33d::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7939.12 via Frontend Transport; Wed, 4 Sep 2024 10:03:43 +0000 Received: from SATLEXMB03.amd.com (165.204.84.17) by MWH0EPF000989EC.mail.protection.outlook.com (10.167.241.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7918.13 via Frontend Transport; Wed, 4 Sep 2024 10:03:42 +0000 Received: from volcano-ed17host-rhel.amd.com (10.180.168.240) by SATLEXMB03.amd.com (10.181.40.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Wed, 4 Sep 2024 05:03:41 -0500 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=dmfp14lzYm9mMdno2y2iV6ARlhH3i4I9rG6eRekEiNB+mndPMqm1f8b1t0Atl8CSWh3OVdPN1GNf7aZUhD3I4YDnbXax06+jn8ftH5UOADZXEG/Jr0jZAzLwOua1+/9LnK8cyBpdRemTMPAQdwjFrcZtGA06ntcqLZmJoROpG0J5mAjVvyLgTev167EiC+7zh7uEg7DuxQrx/hqmaQ+odi+xRXd/m5bKYNIaVJMyC4jozfDKYO0+xrfHIUB36jDo7UouxqX3hWuYKG5uYeKuEYty1G/MrT8wRnnz2v4y0kmghv7yOxQg6PeClU3n/G58Z1aQldvlks6eLjgLf3uS8g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=CEkPYhh9Ha0mFPI7Ylba9YXaKH/58LyVQUwhqZ6/xYw=; b=PgAl3ys9Rtcy+dxfLvQjHMUnMopExTNUJB3HwsySHTX+qZ+OR23TOoZR1vmOSdJe7RQzcGWza5lqTHVrmLm0fWR6kMNXTM/ioHUDukKkCjHb20Vincfev4dkJt2FlOJi4UE3Utaj1oaQd+StejpXgalqBrJLMKrLMDC6PlMeeKV9uUBGRSSJsDqJwr5VTSKVGdenWuBP7hZ/WwhH73HE8//7S59ma3Z7Pllo3iCUB8+8cYmQJr+ZuxECp8LRKLUmyMS3IQXVIyOjS6yZT+/+uOI+l15QzPwfFcQrkOdNdryZ0jMSN6MAF6ZoEjy2mZbTaW0dikXBWSiqo1A3tAYV+w== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=nongnu.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=CEkPYhh9Ha0mFPI7Ylba9YXaKH/58LyVQUwhqZ6/xYw=; b=tLBxU4SYKAEMtfFUQ8BiHbf6Sr0cIwEazDmRvz0DsZ5gzFmnTC1/rGNPKw5M8EFxEZJRuXOssSN3miq0RU/wohEtJKQ2GewIlRVWMyuUclZEG+yoUvt6JwV7PXdF9MW6c33eTv7+UO1bo4rS6YMtKMGDe+2udAbtL4iLkSGep18= X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB03.amd.com; pr=C From: Santosh Shukla To: CC: , , , , , , Subject: [PATCH 2/5] amd_iommu: Add support for pass though mode Date: Wed, 4 Sep 2024 05:02:54 -0500 Message-ID: <20240904100257.184851-3-santosh.shukla@amd.com> X-Mailer: git-send-email 2.43.5 In-Reply-To: <20240904100257.184851-1-santosh.shukla@amd.com> References: <20240904100257.184851-1-santosh.shukla@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB03.amd.com (10.181.40.144) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWH0EPF000989EC:EE_|SJ0PR12MB7459:EE_ X-MS-Office365-Filtering-Correlation-Id: f05e22f8-ae55-4e4c-7804-08dcccc8db88 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|1800799024|36860700013|376014|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?nvrHYElMf9VrG7IBFpcJZbcY84M/Ha6qCKXbCnn6wE7M2gXz08c4rtFf0pD/?= =?us-ascii?Q?rjN+kWBgrSAxw7Ir5y6wUEPrNrHvf//90pZlL79Fcb5W2vlL65jGc1oy7STG?= =?us-ascii?Q?2L1vcskMr4qBVdPLfBt2g6/Y2z78IFZTQHDKW7rpNy/aYaeHaebVX00J6P/Z?= =?us-ascii?Q?YgDK/xEZpzEbV7gE4E2mOcfHIVzR3y+swy29JKYB0ct3Svt9blDgyjAA+OV5?= =?us-ascii?Q?CknOQ0x+v/xGy4fEh+THTvCGBgPlzPpSLveuwLEY6ySJlQt+1lxGyQnm701s?= =?us-ascii?Q?ag/0t5MUXv005n/jP7pkvNiqAxjaoMIGHx5CIIqL8fhVNjfziUX6mVZdf9So?= =?us-ascii?Q?t8oy4O4XK3j6gNRFfETR7TcZ/EqrKAgvPRTZi1/MD8RuVaKhr9UZIjpk7V5X?= =?us-ascii?Q?mvxS8RJOnTK+TUFDTbkiz8xc4yuQakndLXibAedp9/8l5ZukxKhr4gfFkAfw?= =?us-ascii?Q?EK0GKryF8zMDVCSSN/1Phks6pAvAEZZ4tJn6CWhQA2Fy0okk5Bns0ahFYXeA?= =?us-ascii?Q?y2gDMcimKtI3CEHGXnBZ9RBHwHrk9R++UeTZSgIjXaeGAalK6fWuRksQdwHd?= =?us-ascii?Q?f0zLnO2rsMxLQU8HdOtITEKzHUIAlfJ8YpnQa2W02PmYu1muplxjku3XFZWs?= =?us-ascii?Q?Sg0vgSUcYGmVIYLPepV00SOC132JYo3pE90RAEQ6X8fDYiKOUGLr14eDeInD?= =?us-ascii?Q?fHaQgGpsqxeJQ5bR+ISFWbAiuMIwUsLARQ65KWfK2Cyi251LGkcj0xSwbT5V?= =?us-ascii?Q?2GvaUSnaydv/j26BUJZfZbBhnYb0Rd1qn9K6NJP6pjV22/V0zaxccdbIyxc+?= =?us-ascii?Q?Rnb5pcYp+lcP63fJlWRAX43YH58z44Bi8du9P69pGwtG1p4WTJwF/a/gJ5Af?= =?us-ascii?Q?K6EY6GCX5iS6p0VBLp5/rsYcsRUtbXSQVTWEnuU9jOHsW0gfjfTqpSuOWuac?= =?us-ascii?Q?E9SraigZ+rtFq0FD9BEHaXRMuEbAfwelv7PyGoj8oHAbQEbxQpMb7IQZDOeW?= =?us-ascii?Q?Xpt8PSYA0aHVCS/VyRRft+dp4dDLoJeeOGKhUTkNIlve2v4wUqO87CJs0iys?= =?us-ascii?Q?8cqo6Opb5H5maPz8ayDtTdrVcZLP1j0Tma8ja6kNBGzs26jLXhJpdhKeVk86?= =?us-ascii?Q?vIrK1k+cDA7B4/z3GXWz2gugk560Vbb3e7sZCoOwFtdhn8Zgs7ipQDW9ZyZt?= =?us-ascii?Q?Yl8ePgKOokXktOCqscnw/YvyD5YI/izTheg0BKvdFYpCn4LNiAspmiwNJ5dh?= =?us-ascii?Q?Cxay4KoPM9Jfl+XrPSXoXaTwGJVRV3dpGohsAkKB9dN17PPtSs3pDc+TdH5T?= =?us-ascii?Q?T3wshAVAj1Zmxgt5OqrEimfT5aRmbbAO5Dhh+9mT02J0ceiUUbjGRgzeAA74?= =?us-ascii?Q?c0tqnIKBB7dc3sdZqKkj9zZwjY9GuEM0pYZ1yZi2cPr3LBo4lF6egKup0VAI?= =?us-ascii?Q?Xf7CW1eiVgg5MskNssfmsvrxl5kFC9t1?= X-Forefront-Antispam-Report: CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB03.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230040)(1800799024)(36860700013)(376014)(82310400026); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Sep 2024 10:03:42.6572 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f05e22f8-ae55-4e4c-7804-08dcccc8db88 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: MWH0EPF000989EC.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR12MB7459 Received-SPF: permerror client-ip=2a01:111:f403:2416::624; envelope-from=Santosh.Shukla@amd.com; helo=NAM11-CO1-obe.outbound.protection.outlook.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.142, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1725444338403116600 Content-Type: text/plain; charset="utf-8" From: Suravee Suthikulpanit Introduce 'nodma' shared memory region to support PT mode so that for each device, we only create an alias to shared memory region when DMA-remapping is disabled. Signed-off-by: Suravee Suthikulpanit Signed-off-by: Santosh Shukla --- hw/i386/amd_iommu.c | 49 ++++++++++++++++++++++++++++++++++++--------- hw/i386/amd_iommu.h | 2 ++ 2 files changed, 42 insertions(+), 9 deletions(-) diff --git a/hw/i386/amd_iommu.c b/hw/i386/amd_iommu.c index 148b5ee51dba..8f7ebee16ac3 100644 --- a/hw/i386/amd_iommu.c +++ b/hw/i386/amd_iommu.c @@ -60,8 +60,9 @@ struct AMDVIAddressSpace { uint8_t bus_num; /* bus number */ uint8_t devfn; /* device function */ AMDVIState *iommu_state; /* AMDVI - one per machine */ - MemoryRegion root; /* AMDVI Root memory map region */ + MemoryRegion root; /* AMDVI Root memory map region */ IOMMUMemoryRegion iommu; /* Device's address translation region */ + MemoryRegion iommu_nodma; /* Alias of shared nodma memory region */ MemoryRegion iommu_ir; /* Device's interrupt remapping region */ AddressSpace as; /* device's corresponding address space */ }; @@ -1412,6 +1413,7 @@ static AddressSpace *amdvi_host_dma_iommu(PCIBus *bus= , void *opaque, int devfn) AMDVIState *s =3D opaque; AMDVIAddressSpace **iommu_as, *amdvi_dev_as; int bus_num =3D pci_bus_num(bus); + X86IOMMUState *x86_iommu =3D X86_IOMMU_DEVICE(s); =20 iommu_as =3D s->address_spaces[bus_num]; =20 @@ -1436,13 +1438,13 @@ static AddressSpace *amdvi_host_dma_iommu(PCIBus *b= us, void *opaque, int devfn) * Memory region relationships looks like (Address range shows * only lower 32 bits to make it short in length...): * - * |-----------------+-------------------+----------| - * | Name | Address range | Priority | - * |-----------------+-------------------+----------+ - * | amdvi_root | 00000000-ffffffff | 0 | - * | amdvi_iommu | 00000000-ffffffff | 1 | - * | amdvi_iommu_ir | fee00000-feefffff | 64 | - * |-----------------+-------------------+----------| + * |--------------------+-------------------+----------| + * | Name | Address range | Priority | + * |--------------------+-------------------+----------+ + * | amdvi-root | 00000000-ffffffff | 0 | + * | amdvi-iommu_nodma | 00000000-ffffffff | 0 | + * | amdvi-iommu_ir | fee00000-feefffff | 64 | + * |--------------------+-------------------+----------| */ memory_region_init_iommu(&amdvi_dev_as->iommu, sizeof(amdvi_dev_as->iommu), @@ -1461,7 +1463,25 @@ static AddressSpace *amdvi_host_dma_iommu(PCIBus *bu= s, void *opaque, int devfn) 64); memory_region_add_subregion_overlap(&amdvi_dev_as->root, 0, MEMORY_REGION(&amdvi_dev_as->i= ommu), - 1); + 0); + + /* Build the DMA Disabled alias to shared memory */ + memory_region_init_alias(&amdvi_dev_as->iommu_nodma, OBJECT(s), + "amdvi-sys", &s->mr_sys, 0, + memory_region_size(&s->mr_sys)); + memory_region_add_subregion_overlap(&amdvi_dev_as->root, 0, + &amdvi_dev_as->iommu_nodma, + 0); + + if (!x86_iommu->pt_supported) { + memory_region_set_enabled(&amdvi_dev_as->iommu_nodma, false); + memory_region_set_enabled(MEMORY_REGION(&amdvi_dev_as->iommu), + true); + } else { + memory_region_set_enabled(MEMORY_REGION(&amdvi_dev_as->iommu), + false); + memory_region_set_enabled(&amdvi_dev_as->iommu_nodma, true); + } } return &iommu_as[devfn]->as; } @@ -1602,6 +1622,17 @@ static void amdvi_sysbus_realize(DeviceState *dev, E= rror **errp) "amdvi-mmio", AMDVI_MMIO_SIZE); memory_region_add_subregion(get_system_memory(), AMDVI_BASE_ADDR, &s->mr_mmio); + + /* Create the share memory regions by all devices */ + memory_region_init(&s->mr_sys, OBJECT(s), "amdvi-sys", UINT64_MAX); + + /* set up the DMA disabled memory region */ + memory_region_init_alias(&s->mr_nodma, OBJECT(s), + "amdvi-nodma", get_system_memory(), 0, + memory_region_size(get_system_memory())); + memory_region_add_subregion_overlap(&s->mr_sys, 0, + &s->mr_nodma, 0); + pci_setup_iommu(bus, &amdvi_iommu_ops, s); amdvi_init(s); } diff --git a/hw/i386/amd_iommu.h b/hw/i386/amd_iommu.h index e5c2ae94f243..be417e51c4dc 100644 --- a/hw/i386/amd_iommu.h +++ b/hw/i386/amd_iommu.h @@ -354,6 +354,8 @@ struct AMDVIState { uint32_t pprlog_tail; /* ppr log tail */ =20 MemoryRegion mr_mmio; /* MMIO region */ + MemoryRegion mr_sys; + MemoryRegion mr_nodma; uint8_t mmior[AMDVI_MMIO_SIZE]; /* read/write MMIO */ uint8_t w1cmask[AMDVI_MMIO_SIZE]; /* read/write 1 clear mask */ uint8_t romask[AMDVI_MMIO_SIZE]; /* MMIO read/only mask */ --=20 2.43.5