From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> 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 <suravee.suthikulpanit@amd.com> Subject: [PATCH 0/3] iommu/amd: Fix unable to handle page fault due to AVIC Date: Fri, 20 Aug 2021 15:29:54 -0500 [thread overview] Message-ID: <20210820202957.187572-1-suravee.suthikulpanit@amd.com> (raw) This bug is triggered when rebooting VM on a system which SVM AVIC is enabled but IOMMU AVIC is disabled in the BIOS. 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
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From: Suravee Suthikulpanit via iommu <iommu@lists.linux-foundation.org> To: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org Cc: Jon.Grimm@amd.com, wei.huang2@amd.com Subject: [PATCH 0/3] iommu/amd: Fix unable to handle page fault due to AVIC Date: Fri, 20 Aug 2021 15:29:54 -0500 [thread overview] Message-ID: <20210820202957.187572-1-suravee.suthikulpanit@amd.com> (raw) This bug is triggered when rebooting VM on a system which SVM AVIC is enabled but IOMMU AVIC is disabled in the BIOS. 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 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
next reply other threads:[~2021-08-20 20:08 UTC|newest] Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-08-20 20:29 Suravee Suthikulpanit [this message] 2021-08-20 20:29 ` [PATCH 0/3] iommu/amd: Fix unable to handle page fault due to AVIC Suravee Suthikulpanit via iommu 2021-08-20 20:29 ` [PATCH 1/3] iommu/amd: Introduce helper function to check feature bit on all IOMMUs Suravee Suthikulpanit 2021-08-20 20:29 ` Suravee Suthikulpanit via iommu 2021-08-20 20:29 ` [PATCH 2/3] iommu/amd: Relocate GAMSup check to early_enable_iommus Suravee Suthikulpanit 2021-08-20 20:29 ` Suravee Suthikulpanit via iommu 2021-08-20 20:29 ` [PATCH 3/3] iommu/amd: Remove iommu_init_ga() Suravee Suthikulpanit 2021-08-20 20:29 ` Suravee Suthikulpanit via iommu 2021-08-31 17:10 ` [PATCH 0/3] iommu/amd: Fix unable to handle page fault due to AVIC Suthikulpanit, Suravee 2021-08-31 17:10 ` Suthikulpanit, Suravee via iommu 2021-09-02 7:38 ` Joerg Roedel 2021-09-02 7:38 ` Joerg Roedel 2021-09-02 16:13 ` Suthikulpanit, Suravee 2021-09-02 16:13 ` Suthikulpanit, Suravee via iommu 2021-09-09 9:36 ` Joerg Roedel 2021-09-09 9:36 ` Joerg Roedel 2021-09-09 11:17 ` Joerg Roedel 2021-09-09 11:17 ` Joerg Roedel 2021-09-10 18:01 ` Wei Huang 2021-09-10 18:01 ` Wei Huang via iommu
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