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Thu, 5 Oct 2023 13:16:49 -0500 From: Vikram Garhwal To: CC: , Vikram Garhwal Subject: [QEMU][PATCH v1 0/7] Xen: support grant mappings. Date: Thu, 5 Oct 2023 11:16:22 -0700 Message-ID: <20231005181629.4046-1-vikram.garhwal@amd.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF0001AB4A:EE_|BL3PR12MB6451:EE_ X-MS-Office365-Filtering-Correlation-Id: fb4bfe46-2fd4-4b05-6809-08dbc5cf451c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 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:(13230031)(4636009)(346002)(376002)(396003)(136003)(39860400002)(230922051799003)(451199024)(64100799003)(186009)(1800799009)(82310400011)(36840700001)(40470700004)(46966006)(54906003)(70206006)(1076003)(2616005)(316002)(6916009)(41300700001)(44832011)(86362001)(6666004)(5660300002)(2906002)(478600001)(70586007)(26005)(47076005)(83380400001)(426003)(4326008)(8676002)(36860700001)(8936002)(336012)(40460700003)(82740400003)(356005)(81166007)(40480700001)(36756003)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Oct 2023 18:17:01.0980 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: fb4bfe46-2fd4-4b05-6809-08dbc5cf451c 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: BL6PEPF0001AB4A.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL3PR12MB6451 Received-SPF: softfail client-ip=40.107.237.73; envelope-from=vikram.garhwal@amd.com; helo=NAM12-BN8-obe.outbound.protection.outlook.com X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 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_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.493, SPF_HELO_PASS=-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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Hi, This patch series add support for grant mappings as a pseudo RAM region for Xen. Enabling grant mappings patches(first 6) are written by Juergen in 2021. QEMU Virtio device provides an emulated backends for Virtio frontned devices in Xen. Please set "iommu_platform=on" option when invoking QEMU. As this will set VIRTIO_F_ACCESS_PLATFORM feature which will be used by virtio frontend in Xen to know whether backend supports grants or not. Regards, Vikram Juergen Gross (6): xen: when unplugging emulated devices skip virtio devices xen: add pseudo RAM region for grant mappings softmmu: let qemu_map_ram_ptr() use qemu_ram_ptr_length() xen: let xen_ram_addr_from_mapcache() return -1 in case of not found entry memory: add MemoryRegion map and unmap callbacks xen: add map and unmap callbacks for grant region Vikram Garhwal (1): hw: arm: Add grant mapping. hw/arm/xen_arm.c | 3 + hw/i386/xen/xen-hvm.c | 3 + hw/i386/xen/xen_platform.c | 8 +- hw/xen/xen-hvm-common.c | 4 +- hw/xen/xen-mapcache.c | 206 ++++++++++++++++++++++++++++++-- include/exec/memory.h | 21 ++++ include/exec/ram_addr.h | 1 + include/hw/xen/xen-hvm-common.h | 2 + include/hw/xen/xen_pvdev.h | 3 + include/sysemu/xen-mapcache.h | 3 + softmmu/physmem.c | 181 +++++++++++++++++----------- 11 files changed, 349 insertions(+), 86 deletions(-)