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dkim=none (message not signed) header.d=none;lists.linux-foundation.org; dmarc=none action=none header.from=amd.com; Received: from BYAPR12MB4597.namprd12.prod.outlook.com (2603:10b6:a03:10b::14) by BY5PR12MB4146.namprd12.prod.outlook.com (2603:10b6:a03:20d::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3825.24; Mon, 8 Feb 2021 11:57:45 +0000 Received: from BYAPR12MB4597.namprd12.prod.outlook.com ([fe80::a95a:7202:81db:1972]) by BYAPR12MB4597.namprd12.prod.outlook.com ([fe80::a95a:7202:81db:1972%7]) with mapi id 15.20.3825.030; Mon, 8 Feb 2021 11:57:45 +0000 Subject: Re: AMD-Vi: Unable to read/write to IOMMU perf counter To: "Tj (Elloe Linux)" , iommu@lists.linux-foundation.org References: <9ebcadaa-301d-2b59-04ae-be9a243c7ac0@amd.com> <00a54bdc-6495-d43f-744c-0df269e5d3d6@elloe.vision> From: Suravee Suthikulpanit Message-ID: Date: Mon, 8 Feb 2021 18:57:36 +0700 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 In-Reply-To: Content-Language: en-US X-Originating-IP: [61.90.27.73] X-ClientProxiedBy: SG2PR04CA0189.apcprd04.prod.outlook.com (2603:1096:4:14::27) To BYAPR12MB4597.namprd12.prod.outlook.com (2603:10b6:a03:10b::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from Suravees-MacBook-Pro.local (61.90.27.73) by SG2PR04CA0189.apcprd04.prod.outlook.com (2603:1096:4:14::27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3825.20 via Frontend Transport; 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charset="us-ascii"; Format="flowed" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" TJ, Thanks for testing. I will submit this change upstream w/ you as Tested-by. On 2/8/21 12:18 AM, Tj (Elloe Linux) wrote: > On 06/02/2021 04:02, Suravee Suthikulpanit wrote: > Would this be in any way related to the following from the same device: > > kernel: pci 0000:00:00.2: can't derive routing for PCI INT A > kernel: pci 0000:00:00.2: PCI INT A: not connected This is not related, but should not cause issues. Thanks, Suravee _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu