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Thu, 26 Feb 2026 19:16:27 +0000 Date: Thu, 26 Feb 2026 11:16:25 -0800 From: "Luck, Tony" To: Peter Zijlstra CC: , , , , , , , , , , , , , Subject: Re: [RFC][PATCH 0/6] x86/topo: SNC Divination Message-ID: References: <20260226104909.675623579@infradead.org> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20260226104909.675623579@infradead.org> X-ClientProxiedBy: BY3PR03CA0001.namprd03.prod.outlook.com (2603:10b6:a03:39a::6) To SJ1PR11MB6083.namprd11.prod.outlook.com (2603:10b6:a03:48a::9) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PR11MB6083:EE_|DM4PR11MB6119:EE_ X-MS-Office365-Filtering-Correlation-Id: 8b1bedec-ef0c-4a9f-1590-08de756b89ed X-LD-Processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|366016|1800799024; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?jof4w7qdaSUeiRsVgVG6B3MZg5xbR+3um6seidQShWq9AbEoTVAwSu+xqXl8?= =?us-ascii?Q?C++GQz3IT61uV+Z7RWR2qKYEfEykNVWDpJsjSidIa4kAwxfO2TBvNEebWF2B?= =?us-ascii?Q?64cAmR7bUsgx3g9oGleo+s0xNnjihX7RixbmvTKqdBcOfOHYqHDCjBWinoKz?= =?us-ascii?Q?ef8+M92Pj6FZw+RED/OZ9tbw75Wky5HZQm0f3vdFJedL6BBOmi+s9dhqR65i?= =?us-ascii?Q?boQa9Wf6TaDniSm9KS2vqEZf+GU6cG0tYbN7izET211G3EFAP38gxGeFut5j?= =?us-ascii?Q?kx39dvQH34lXNkW4bZbWoY0paYPHF22YNW+aBHa4E1e6hJISL+yC7sytsn5Y?= =?us-ascii?Q?V/5hM3bNZ3P+yaCkbqiHTNdyHdRPybsD6L87UqoQyBGweN1gophCifiNJtXH?= =?us-ascii?Q?GZfXU4kik4hqbATfjtTmy4JNbbeAqk/bdLcR4+D+mUPabSjiGimHutcExylj?= =?us-ascii?Q?FM0LQQL5vYp+S6mOOX2tTv69rxbS3Rb3KO3DGhKbWr904uRCB9LOJso7XA09?= =?us-ascii?Q?2WIkCaEJxPP0U/rFDSz8ShzJm+N4KOana7LfMYSntmv+/V6lQGRSw63ekmr4?= =?us-ascii?Q?T7DJPGsVTuyHqWJJAkYV7m5etqGFfCm+b6azxfxAeV5d8utCwyczUZGN/qUa?= =?us-ascii?Q?RwY8ng6uDK+0qH8GT+CH8xNaBkrisrhVdGq9zmAZ/3B33HDPRGhlZt+VHBMf?= =?us-ascii?Q?5VoW6VYor98EOwVHeQJ3VI/TeAsUAqsSaQfrKg/3n8nkKuU7pl4rekSjpFnr?= =?us-ascii?Q?CyIHU3GghQNd6mpyUOd3SE1npZdtVqaMd6uoV5l7GXwy9jDIjNG3JaAe0Rcu?= =?us-ascii?Q?rj1/Dkk8HGMjS0+L+kRBMoDLbipmSZLsWvnjSEotrlaU1loWjZWy4TGk2LxF?= =?us-ascii?Q?6VrDJLeq8hVFp9DPhxqvYdyie3GQtn9KSWN8FGbdsB/TcP8Ys5DseGUzF/K7?= =?us-ascii?Q?KHbZdkKUNEhw0LUtFyJSbFQ6tvj/Gr95uAolzYzp3MXYH6tMAyUOBjhxXeku?= =?us-ascii?Q?f9am9Z2H9cYbJ1DNPkMonRd5c3Ijmdj8lBzGkBwhh/+KtGBM9YxAOzPch6ot?= =?us-ascii?Q?TybiYhR4yibruULrZg+AYPmwUnT0TLefpce/uAquRxORtQPZpS8Lm6wFx9qa?= =?us-ascii?Q?KnQfV/vG/4pzvL6AFkjQVqMHw63pYmfW2KFI7a6/yA1ykX3l0RNfSc1V1AtM?= =?us-ascii?Q?kP1bn3cOMcg2jD/WFeU8ZIQIWwHVxdvUlBrjR57Tt/ahSv8S8WLPHF1vDGVo?= =?us-ascii?Q?t+7G6z/wUon1dIfwtjqD8vkFpu9QBNcTi17PS9xqDa/Nxga2Qnrhyc5Axgm+?= =?us-ascii?Q?XKJLEfqpTPBKlkenO8hKfxyT8jmpM5loiHGJNWaQ7Me55UHI8zjToJVYZvdQ?= =?us-ascii?Q?q7pbQNgNHsToRk/syiWL/oN0qdqXXk0bQLu+fOp8dRNHHzEKdF6KjLA6P1ap?= =?us-ascii?Q?rUJJcpE5Q2panj+UR9l2dIdT2TIktR6K+8WMR52uSfXyHsQcZ6X1gT/KVmwD?= =?us-ascii?Q?JSGhS1X3H0Qsro9hJY0J8utYuSk/YR1onM+znov5/Xh8xeNrHOh4skKS1Ii1?= =?us-ascii?Q?enLrFiurvUgN2v9lTr3+hDU5JTyvKrUanxZIh2HUV/tfVa5IMmadJZyWvypr?= =?us-ascii?Q?9c6W6N/WQ9jx3Gi3PmYZMXL6CSeBo61TO93n+hdjzfWzdYQkTdskkBm/05Hp?= =?us-ascii?Q?6F2eX4owtKUDwnc5cRsAZIHBUeXL5mhu45gnV4BFHGfxu5B1FcApXJFXYLAz?= =?us-ascii?Q?Efn9vXvUAA=3D=3D?= X-MS-Exchange-CrossTenant-Network-Message-Id: 8b1bedec-ef0c-4a9f-1590-08de756b89ed X-MS-Exchange-CrossTenant-AuthSource: SJ1PR11MB6083.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Feb 2026 19:16:27.2023 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: a4/8rFQ3hsmFW6IkDUHXT5uI7RRuVVGiEKm2tJqzmx0RHpp8EDX7Ui0w3K6+68uEBBErPD7iIxhnNvnczjhHZg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR11MB6119 X-OriginatorOrg: intel.com On Thu, Feb 26, 2026 at 11:49:09AM +0100, Peter Zijlstra wrote: > Compile and boot tested on non SNC only for now; I'll see if I can convince > qemu to play along. Tried it on an SNC 3 system. The resctrl patch still gets the right value with these patches applied. Tested-by: Tony Luck -Tony