Messages in this thread | | | Subject | Re: [PATCH 0/3] iommu/amd: Fix unable to handle page fault due to AVIC | From | "Suthikulpanit, Suravee" <> | Date | Tue, 31 Aug 2021 12:10:27 -0500 |
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Joerg,
Here is an dditional tags for this series:
Fixes: 8bda0cfbdc1a ("iommu/amd: Detect and initialize guest vAPIC log")
Are there any concerns with this series?
Thanks Suravee
On 8/20/2021 3:29 PM, Suravee Suthikulpanit wrote: > 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(-) >
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