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Peter Anvin" , Ard Biesheuvel , Paolo Bonzini , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Andy Lutomirski , Dave Hansen , Sergio Lopez , Peter Gonda , Peter Zijlstra , Srinivas Pandruvada , David Rientjes , Dov Murik , Tobin Feldman-Fitzthum , Michael Roth , Vlastimil Babka , tony.luck@intel.com, brijesh.ksingh@gmail.com References: <20210707181506.30489-1-brijesh.singh@amd.com> <20210707181506.30489-6-brijesh.singh@amd.com> <955b4f50-5a7b-8c60-d31e-864bc29638f5@amd.com> From: Tom Lendacky Message-ID: <65c53556-94e1-b372-7fb1-64bb78c7ae15@amd.com> Date: Tue, 10 Aug 2021 14:30:44 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 In-Reply-To: <955b4f50-5a7b-8c60-d31e-864bc29638f5@amd.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-ClientProxiedBy: SN7PR04CA0187.namprd04.prod.outlook.com (2603:10b6:806:126::12) To DM4PR12MB5229.namprd12.prod.outlook.com (2603:10b6:5:398::12) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [10.236.30.241] (165.204.77.1) by SN7PR04CA0187.namprd04.prod.outlook.com (2603:10b6:806:126::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4394.17 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?NElpMDFvM0ZqYXVjVEhUWEN6RmpBUy8yMURQaWlyN3M3UzlhbGNvVk5GSHJl?= =?utf-8?B?TEdQYWFBa05nRWhiazBiKzlZQktZODU2VzdWNlhWTnBhMUZVQU54bWdXZlYw?= =?utf-8?B?TytFczZxaHNsRU9ZVFB4VVVrUWlISjBQRUFHS24wRk05ck1NOFFEWW9nN2Ur?= =?utf-8?B?SnM0eDFENVVKRDdxSDVablZIb2FyL3BBZ09vSjEzcXRnN3VzRG4wNFdhcEh6?= =?utf-8?B?WURZbURDZHd1WHEzODhrUEU3bjRzZ0kxY0dycUR6TS9qRkNRVDU5OUJxemRW?= =?utf-8?B?bytLRkVMYTRIUno1NEFGSFlHL2lYbFFmcTZQSVlHVmEyY21SajZaQWxmZFdm?= =?utf-8?B?Q3Q1Y1ZUODRUS3kvTThuN3R0c0dHeUxKOG9VZjJPVzg3R0IvSXNZSG8zVkRR?= =?utf-8?B?akU4MlZZdll5TG9kZUYxUStUZjhrT1VBM3FGclJhdDRuUTdsN1Q1aEt5QkhK?= =?utf-8?B?SXpTa0tJdHh5S0hNNE42NGdOL2pLVEE2OVR3NjI2d0RjQ2lXTWJsMXNjMFpp?= =?utf-8?B?aTBVR2EvUVFGMkR4Y294SzhHNWxXd2lVaS80RVQzQXljM1o1bzA0TTBZU2dW?= =?utf-8?B?T3hrNDduWlVRVVhXY3FMZlRod2NwU2J3YkltbGNSalVKZVh1bWQ3ZFFwMmNm?= =?utf-8?B?VUoreUYyejJCaTQvRTVObDNWbkxMdXYzWW9jVGh6RWFxak5nUkFyeVhJMUZU?= =?utf-8?B?N2tRNCtoYThoV0pobnA4U1V4UVFpbEJmTEtDZExubDNYbG5HVzVCbU1qeElN?= =?utf-8?B?WGNLclZndGlsTUhRaklHcDNWaFdicU8yVURERW1EQUw1eHdLVGo4MnhYU0o1?= =?utf-8?B?K2s0U3lRV3NpbUZ4SU9uTHBlWnc1YjB1MDh4TEpNM3ZIZ2krMHRTb2QwSHhN?= =?utf-8?B?NEFCWWZTUkhCU3E1MnE2UkN5WEgzSVhPY1JyMVJ3UVpzMkhaOFFhL2dDMlN0?= =?utf-8?B?OFNMY3VkcmJTcWZCbmVGTnYvMkpzSnRhSlMxb084VFRqQ3BuVCtpM1VNanF4?= =?utf-8?B?T2t4RGdSZExCNS8xZWx5VWIwMDJlQzlWemlRL0dvRmNJRDRnKzRmNFg2UnM2?= =?utf-8?B?T01yRkNzRmN5cVVEN3ROamEwb0wvUXBNZ040eE93ZmhaVGdYaThxRmNiNE5u?= =?utf-8?B?QysxSEo2WUFJbUt1dms5UDVIVXIxc2U5U1FpMHdIMUVwdnJWS2puV2MrOWMy?= =?utf-8?B?K2V0Z1BrUmtmMjVGczFNeUdhR1JIUjVBUHcyVkNZTkk2NDR4QzFIMktHOUxO?= =?utf-8?B?ZFBWRkNEZERjZU1XcnRYVWZQa1ltaGI1d0RvQ01Ta21DS0twU1lWbW5reEVi?= =?utf-8?B?VVp0S21SQ3RYSTFKcmtJTFFqVnMrd3pxSGttaXhRYTNlbk94OTBKd2RkUUFR?= =?utf-8?B?a2drVjlXRUdwSUxaRmJJTCtLMHo3VnNqOG1NQU1zL1FmUm4zR3NZKzQ2MDJP?= =?utf-8?B?czE1Yml1aUM1TEpSRy9JYThvMVhoYjhpMnFCNlo0T3BDR1dScHJ6cGY2SWFm?= =?utf-8?B?VHBDVFRDQnl4WHJuTUlyMVpJVVVEdnErOWx2RTZDTldvL2tDTmZBK3gzYVYx?= =?utf-8?B?OGFIelNudktvRjg3dXV6NWRHcHMwenFGdUpUSHNxSVFCaW04QnpXbVBqbmpu?= =?utf-8?B?SXNTcEhNNjNCeDk0UGZvcGtqT0p3SWFWSFNtaTV5dk5qeC9nWHhrTlBTQVc1?= =?utf-8?B?TFdVQ1NvaTEwTm1GelZsYU9MbXVXbkdYNVk5L1EvdUlNNFlTdFpXcG1qK1Z2?= =?utf-8?Q?bfO73/QHCvuF3lDPi3ZH5/C31aWsPTjfrC6yuSR?= X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5a5b3df5-c635-4cf4-b4bf-08d95c355adf X-MS-Exchange-CrossTenant-AuthSource: DM4PR12MB5229.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Aug 2021 19:30:47.9826 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: BonaRp1Fh0b7MweUGFaHqjVf8cUTEOiXIbeGxmrdIPHOEvhj7hniwniSXYb3FWqi0mNx3xLrMS7BJQGXOjOhdw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB5215 Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org On 8/10/21 9:59 AM, Brijesh Singh wrote: > On 8/10/21 6:33 AM, Borislav Petkov wrote: >> On Wed, Jul 07, 2021 at 01:14:35PM -0500, Brijesh Singh wrote: >>> +#define SEV_TERM_SET_LINUX        1 >> >> GHCB doc says: >> >> "This document defines and owns reason code set 0x0" >> >> Should it also say, reason code set 1 is allocated for Linux guest use? >> I don't see why not... >>  > Tom? >> > > If Tom is okay with it then maybe in next version of the GHCB doc can add > this text. IIRC, during the review of the first GHCB version there was discussion about assigning reason sets outside of 0 within the spec and the overall feeling was to not do that as part of the spec. We can re-open that discussion for the next version of the GHCB document. Thanks, Tom