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Wed, 9 Oct 2024 10:46:07 -0700 Date: Wed, 9 Oct 2024 10:46:05 -0700 From: Nicolin Chen To: Jason Gunthorpe CC: , Hanjun Guo , , Joerg Roedel , Kevin Tian , , Len Brown , , , "Lorenzo Pieralisi" , "Rafael J. Wysocki" , Robert Moore , Robin Murphy , Sudeep Holla , Will Deacon , "Alex Williamson" , Eric Auger , Jean-Philippe Brucker , Moritz Fischer , Michael Shavit , , "Rafael J. Wysocki" , Shameerali Kolothum Thodi , "Mostafa Saleh" Subject: Re: [PATCH v3 0/9] Initial support for SMMUv3 nested translation Message-ID: References: <0-v3-e2e16cd7467f+2a6a1-smmuv3_nesting_jgg@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <0-v3-e2e16cd7467f+2a6a1-smmuv3_nesting_jgg@nvidia.com> X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF0001AB73:EE_|SA1PR12MB7126:EE_ X-MS-Office365-Filtering-Correlation-Id: 4d057c26-4f91-41cf-e7ce-08dce88a4e25 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|7416014|36860700013|1800799024; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?cl5pRHwypI5GwG9V5pPrUgg0Hh574siWUBMnGJuW6JUessuAbg8dj5in7SjI?= =?us-ascii?Q?Rmg1iy361bW0U9sLBLvx4hcvoJG8uTVMTrmkaMu9iBpnBu84M3SzbiALBQEh?= =?us-ascii?Q?cxP8/hgsj8UhPW9AD1dxwV2O+JxhDRCX9PxiTgDTh4jK6KfZZ6BKUpnjCF1/?= =?us-ascii?Q?yPm1KN1Affhb4e/p1G2TguBiVT4Jp8H4Z7g4/4x88SBGhQGqb3xrp/kUknMN?= =?us-ascii?Q?dq7RAObfZMJ7ljC77+WQLQTSgMxwY0bO91W3H5Fw1hrQgjALSWmVuayKFfXW?= =?us-ascii?Q?d+9A6ocuL39E7SJ6SLkxeFOpVsN9yFLTIUmW+7CKr334gEaGaQTdoSraNswg?= =?us-ascii?Q?1CrEtBLhf7pIKBubZar8sV3RMcxKseftTYLXuupn2AyXPPeWl2aJOqYQF4V5?= =?us-ascii?Q?P/9AfEi4uUvaeG/EHdc+HcrQE5E/ckSbQIbW4bLjaw3PqWIMrST8cM3p5E5L?= =?us-ascii?Q?Av/25v6xUtidoO0+4DkvNcRDIrLiV0ncVRGJ8gVUZ3e7oyA39SbpX/PU0KZ+?= =?us-ascii?Q?kI1XzKRYnJoW2HNn6NTgl50qSOtHcwYrj3+9mKGK4itLIdh0YHUU511kFQqt?= =?us-ascii?Q?TwJHvNJhAbgggJwDKMJVObQ8qosYCxjcjBTLH8nYcuQmKYdq2GV3fNfmS5cp?= =?us-ascii?Q?vbtlYlXbtwirYbraX7jCxZMURsFlH/k75pFSQ1p4v9GBRSg1R7XIXbb3wBau?= =?us-ascii?Q?+I5s1acApZetW9GMRSUcHEfTiMOvrzmxYiZNvS77dzzuCDgjICYC7UR5xtpI?= =?us-ascii?Q?ovNIjIih88GLTaQIYcay2rTnOuTrGCnI0AgE+XvEvq/6e+13cIudRyXjWgHB?= =?us-ascii?Q?I1h7wk5x+G9Vwjxa4Y5ub5KU7LdhgOmUIaa0uZuTHWX4lJZ7euhawOSdDzpz?= =?us-ascii?Q?+G1eJ2J7FH2vvtmovp9ipZ5Y+4dEbA/hRtTiU9xt/kyPDGOpk0i6VvXBlqsY?= =?us-ascii?Q?29YdLQ3pbY3ryvUVk+n1KXQMe1eTtpeUzkRdaoSAL/Du/7ECpR0IlShMREpc?= =?us-ascii?Q?TeToOtCvcWJeoQJAGOiCWw02/iCSrYavJha+EugUofZKeHMqW8fJ4ZsPlkJi?= =?us-ascii?Q?FVpyUj7syfTT9w5qkuSCuTJAnDuTOCMUPM/+sorAvmkIu5rp3TG/0EUkJFN6?= =?us-ascii?Q?75lTqG9xom7NcLWtLsO2er+VcIvyRJiex4rZpIUAg/fcHTd53ne5nZHueddu?= =?us-ascii?Q?TkDONFy7uRlQ0d375zEB3ApQ/RgEWAtWZk8UJNilplJ12id5HtUmNSddicD2?= =?us-ascii?Q?bKXyPJwreGXCHYF9hMZyfNYqq0OcYjSPTYpjGh2102RZUqUX33y2cMWYL1xO?= =?us-ascii?Q?Z2PpA7Ypr7Ip1Dcz81jtVwX1W9kZl5YTTIXY6gQpEK41P2kVZNiDFW3rAwEr?= =?us-ascii?Q?Hz+e+o+aOiAFnLQP7Zkwzruz/fMD?= X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(376014)(7416014)(36860700013)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Oct 2024 17:46:29.2599 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4d057c26-4f91-41cf-e7ce-08dce88a4e25 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BL6PEPF0001AB73.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR12MB7126 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241009_104640_693765_79578149 X-CRM114-Status: GOOD ( 13.64 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Oct 09, 2024 at 01:23:06PM -0300, Jason Gunthorpe wrote: > The vIOMMU series is essential to allow the invalidations to be processed > for the CD as well. > > It is enough to allow qemu work to progress. > > This is on github: https://github.com/jgunthorpe/linux/commits/smmuv3_nesting > > v3: > - Rebase on v6.12-rc2 > - Revise commit messages > - Consolidate CANWB checks into arm_smmu_master_canwbs() > - Add CONFIG_ARM_SMMU_V3_IOMMUFD to compile out iommufd only features > like nesting > - Shift code into arm-smmu-v3-iommufd.c > - Add missed IS_ERR check > - Add S2FWB to arm_smmu_get_ste_used() > - Fixup quirks checks > - Drop ARM_SMMU_FEAT_COHERENCY checks for S2FWB > - Limit S2FWB to S2 Nesting Parent domains "just in case" Verified SVA feature in a guest VM, with the vIOMMU part-1&2 series applied on top and the pairing QEMU branch mentioned in the part-2 cover-letter: https://lore.kernel.org/linux-iommu/cover.1728491532.git.nicolinc@nvidia.com/ Tested-by: Nicolin Chen