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Fri, 20 Aug 2021 20:08:37 +0000 From: Suravee Suthikulpanit To: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org Cc: joro@8bytes.org, Jon.Grimm@amd.com, wei.huang2@amd.com, Suravee Suthikulpanit Subject: [PATCH 0/3] iommu/amd: Fix unable to handle page fault due to AVIC Date: Fri, 20 Aug 2021 15:29:54 -0500 Message-Id: <20210820202957.187572-1-suravee.suthikulpanit@amd.com> X-Mailer: git-send-email 2.17.1 Content-Type: text/plain X-ClientProxiedBy: BN6PR1401CA0021.namprd14.prod.outlook.com (2603:10b6:405:4b::31) To DM8PR12MB5445.namprd12.prod.outlook.com (2603:10b6:8:24::7) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from ethanolx5673host.amd.com (165.204.184.1) by BN6PR1401CA0021.namprd14.prod.outlook.com (2603:10b6:405:4b::31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4436.19 via Frontend Transport; Fri, 20 Aug 2021 20:08:36 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 0d3ac43d-ca28-4a56-2ac5-08d964164bec X-MS-TrafficTypeDiagnostic: DM8PR12MB5429: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8273; 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The series reworks interrupt remapping intialiation to check for IOMMU AVIC support (GAMSup) at earlier stage using EFR provided by IVRS table instead of the PCI MMIO register, which is available after PCI support for IOMMU is initialized. This helps avoid having to disable and clean up the already initialized interrupt-remapping-related parameter. Thanks, Suravee Suravee Suthikulpanit (2): iommu/amd: Introduce helper function to check feature bit on all IOMMUs iommu/amd: Remove iommu_init_ga() Wei Huang (1): iommu/amd: Relocate GAMSup check to early_enable_iommus drivers/iommu/amd/init.c | 45 ++++++++++++++++++++++------------------ 1 file changed, 25 insertions(+), 20 deletions(-) -- 2.17.1