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Thu, 19 Mar 2020 21:44:48 +0000 From: "Huang2, Wei" To: Borislav Petkov CC: "linux-kernel@vger.kernel.org" , "tony.luck@intel.com" , "Ghannam, Yazen" , "tglx@linutronix.de" , "mingo@redhat.com" , "hpa@zytor.com" , "linux-edac@vger.kernel.org" , "x86@kernel.org" , "Koralahalli Channabasappa, Smita" Subject: Re: [PATCH 1/1] x86/mce/amd: Add PPIN support for AMD MCE Thread-Topic: [PATCH 1/1] x86/mce/amd: Add PPIN support for AMD MCE Thread-Index: AQHV91+4T7XLGb2nU0+KbGhK1YZA8KhLjQqAgATaUICAAAHeAIAABltZgAAG8ICAAAf6og== Date: Thu, 19 Mar 2020 21:44:48 +0000 Message-ID: References: <20200311044409.2717587-1-wei.huang2@amd.com> <20200316180829.GP26126@zn.tnic> <53d25b8c-dabe-1b91-4d3b-0a223075e42a@amd.com> <20200319202134.GG13073@zn.tnic> ,<20200319210909.GH13073@zn.tnic> In-Reply-To: <20200319210909.GH13073@zn.tnic> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: MSIP_Label_76546daa-41b6-470c-bb85-f6f40f044d7f_Enabled=True;MSIP_Label_76546daa-41b6-470c-bb85-f6f40f044d7f_SiteId=3dd8961f-e488-4e60-8e11-a82d994e183d;MSIP_Label_76546daa-41b6-470c-bb85-f6f40f044d7f_SetDate=2020-03-19T21:44:47.330Z;MSIP_Label_76546daa-41b6-470c-bb85-f6f40f044d7f_Name=Internal Distribution Only;MSIP_Label_76546daa-41b6-470c-bb85-f6f40f044d7f_ContentBits=0;MSIP_Label_76546daa-41b6-470c-bb85-f6f40f044d7f_Method=Standard; 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x-microsoft-antispam-message-info: igyWtVrCDXAKu+Me18Y+gZ10V7K9y0HPZ+5mU5aUyKJHcjgYZmfVKzT0DmH4KDyd/6IeY2DLOWCm0k46sG1AuMeW/brKN7Got3O0sP+YPcmxBlhcKTDU8zBgJt0xU0hphjjYpNY7YnQVRESlpvg3AfXfeM6uwUHIjerZ5+CSsze+V0MlxHZFd1G34MetwvOEslUWwMjsnyumYl4jYmh8aQUoeYk7yy5kMZlSieQIsikyBHDbqBJoeeQgH9dmmrYcCdLprHdYOOSkaRbNTXRj2UKp/KQMVRqHSAVxnAEFhuUm24qAxngDGOWqqgU4jMVkGhcXZT5gi7+KOzWcN+xxeoXV1rZqsr10qMXmgTdzChOG9j/HwsbRk+i2HrXUMHwjbAsEFN05kv7YHSDO3cQMCqCnxFuj3vOC6n43I3YWjxqpfgv2U9011fFeS45MSMaV x-ms-exchange-antispam-messagedata: vgCXitXDuoJUGf1xFDZGmVXSCN8qXMffQ855VmEm4zFqO9lFQjUQh3F8GbEVKZG6iaR65moTpzLdGfv11PxTvlw0ZSBByibBUDcdfdf+OH++JQxguab4PQU7OQ9GCahCi/lziRU+g2H/jvFkyWVEKg== Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: dee882c3-aa3d-4a83-487a-08d7cc4ebf18 X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Mar 2020 21:44:48.0340 (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: S+lFTnip62/2PApqcGLChz1/bmqqF7UjXm7CBXiDugd7PwbbRxpbUcxTMfMxdk4F X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR12MB1224 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [AMD Official Use Only - Internal Distribution Only] >> However, there is a small problem: during boot, mce_setup() is called >> once before mce_amd_ppin_init() is invoked. >Which call site is that exactly? It was from machine_check_poll() =3D=3D> mce_gather_info(), right around th= e invoke of identify_cpu() inside arch/x86/kernel/cpu/common.c file. -Wei > -- > Regards/Gruss, > > Boris.