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Fri, 26 Jan 2024 01:35:32 +0000 Date: Fri, 26 Jan 2024 09:35:22 +0800 From: Chao Gao To: Yang Weijiang CC: , , , , , , , , , , Subject: Re: [PATCH v9 14/27] KVM: x86: Initialize kvm_caps.supported_xss Message-ID: References: <20240124024200.102792-1-weijiang.yang@intel.com> <20240124024200.102792-15-weijiang.yang@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20240124024200.102792-15-weijiang.yang@intel.com> X-ClientProxiedBy: SGAP274CA0006.SGPP274.PROD.OUTLOOK.COM (2603:1096:4:b6::18) To CH3PR11MB8660.namprd11.prod.outlook.com (2603:10b6:610:1ce::13) 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: CH3PR11MB8660:EE_|BL1PR11MB5430:EE_ X-MS-Office365-Filtering-Correlation-Id: c9fb91ba-0755-4542-d542-08dc1e0f1611 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; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?lLOB+hSgUAeW/3EYo5kMGm/w5wEZLfK3CHYcVudAcR8pOTP3LE4YiBzOhhin?= =?us-ascii?Q?MmdoaE72NUcUeJ8GpUPSwyFnpVqsgTkRGYOiAALdzrAe2Xoxauw9kYgGF7qb?= =?us-ascii?Q?Tty4F9R4JGK6guMuW9PCyrjvumeR/GeNvg02AOlKlaEBcOa51J0pmfYbtfVM?= =?us-ascii?Q?lr2QDukzIR8DUTQA7aJCST+1fhwusuwgyJVDkB2GCp1LKO4Pn00UFV1yYz5U?= =?us-ascii?Q?TWlajm7extCIlXPkb3pi7PpdAsCp3fbTFtXBCUFRV94yri4buMNVexvrfohp?= =?us-ascii?Q?d7EjJVC6wbkCUcS9rA46CpCrJ3XZu5VIcSejemfOQZGokKeMeH6QtAoCN3F9?= =?us-ascii?Q?T4gbjLAtX7JILBdO8SNqSeJIZM1VQ7JGS82qE8YlrSvMtVpgM9kUAEy9Y+ZK?= =?us-ascii?Q?MS6R7C/WUys+RxA3+UPRZIUE4RLI/O/Yot+7ewDaEn9QJAQkh1THbw6gjbSX?= =?us-ascii?Q?QzfZ+cZoP4YWndd1gJcTUhZmwsYQHoIuY0Vku48STkM50rnAhMw5jIHPsasR?= =?us-ascii?Q?J+EejgkFtn7cJM3b0JlwGkjX2b3gHbq0OYQi22VvP/2ryuRctdtg2gx6UPXt?= =?us-ascii?Q?3jzmIzDgxQM3BfuESyFhoz/3KUL+/2ix5uFHOcpZrZ4XocCRdJ/RCDC677xK?= =?us-ascii?Q?1McU31fGioRbbyv9lblbRfOqjyGo6wqcDeRY5mc2dKmmfQhhk7dSdKr3GGLS?= =?us-ascii?Q?oN4fs525O8CPchwFY/LMtkGOrR+2O6DNw7okIa9K7weGBHu4KuaZY7zmmP4K?= =?us-ascii?Q?sPNRc01UrzoHnrGraOqMmfaO+61q/jCmdvSq4obpD1EbxvxbBdMrZaDFwjno?= =?us-ascii?Q?fHxg0tR87ZjwL1LX2zQ4Galfq/x+aPsqSD1jcXbIgt7EvDvbx2GpqcsTmzY+?= =?us-ascii?Q?fXzNdg71ewoOELpMONpg+QAxuuQ+A9LpJ5KLtwCZHRoB5/e7Lls/IKZp0Ca9?= =?us-ascii?Q?lcZ/ajTtM9O/ArENcI88o+qZw9pvBsjPS5corr+p9IShg9xepnZKl0i9ZZjp?= =?us-ascii?Q?xKGlTqchx7swBNMLtfftr4xB7W/mb8Swyyhe5j9zeyBDbyeBsKTGNx7XIB9K?= =?us-ascii?Q?TPj0QrJrXSn7G62xK3uIrXLY8tfnF5mK1x9LwLTORQbGrK59dEImy/drkXJ7?= =?us-ascii?Q?w14WYosag95CDNtzmUxy//gGkldm+8+5xLgpW2vRvtuWl2aamvsghhqj87X4?= =?us-ascii?Q?k9kGxFPkQoB2p4moy6HtwjkvriJbJ5l5oPo5KBE2LIQrIoz2JphoLw2WcFqj?= =?us-ascii?Q?ZS/v4IPAdr//YsR06nupv+/qqQprhjjUurI2f9qSPyX7/JxyC7a3HvuSt8MH?= =?us-ascii?Q?YvwPHdldkFWoiSlD69dggWiJD6n1S1HA0BONl7PGHo2LGb6KjEPjD7mjMCvt?= =?us-ascii?Q?SrTrZDNvs/6GVEO9fsLA65bdOXfMUifnTZcV5/8e1WnjpUH13qUJFFEaVwMJ?= =?us-ascii?Q?PH1JFPFKpJ8sdV3Knh9PLrEyPsU9L8ydH5knARqx6sI5Jr2MU2PCrSO6rFA8?= =?us-ascii?Q?0BW6aaDIbUNjY60TfT2E2wtvr5sygYskj8eNwDWiZwwuauAAHbYL9JL6OKSi?= =?us-ascii?Q?F3LCoZJqEuL5rQdE8GBfgiTgMEnWtmAePRoL/lbb?= X-MS-Exchange-CrossTenant-Network-Message-Id: c9fb91ba-0755-4542-d542-08dc1e0f1611 X-MS-Exchange-CrossTenant-AuthSource: CH3PR11MB8660.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Jan 2024 01:35:32.4807 (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: XFFsBc7CW8SXmsSu3egWW4afzyZDc+0Gzvf1uPybdyso8Ovv/dmold4V7slD8PTvbhxdyTTlwVJ7gQ+GVn9Z5Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL1PR11MB5430 X-OriginatorOrg: intel.com On Tue, Jan 23, 2024 at 06:41:47PM -0800, Yang Weijiang wrote: >Set original kvm_caps.supported_xss to (host_xss & KVM_SUPPORTED_XSS) if >XSAVES is supported. host_xss contains the host supported xstate feature >bits for thread FPU context switch, KVM_SUPPORTED_XSS includes all KVM >enabled XSS feature bits, the resulting value represents the supervisor >xstates that are available to guest and are backed by host FPU framework >for swapping {guest,host} XSAVE-managed registers/MSRs. > >Signed-off-by: Yang Weijiang >Reviewed-by: Maxim Levitsky Reviewed-by: Chao Gao