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[PATCH v2 0/3] x86/IOMMU: enabled / intremap handling


  • To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Thu, 21 Oct 2021 11:57:01 +0200
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  • Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Paul Durrant <paul@xxxxxxx>
  • Delivery-date: Thu, 21 Oct 2021 09:57:14 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

In the course of reading the response to v1 (patch 1 only) I realized
that not only that patch needs further adjustment, but that also
further changes are needed (and there's likely yet more amiss).

1: x86/IOMMU: mark IOMMU / intremap not in use when ACPI tables are missing
2: x86/APIC: avoid iommu_supports_x2apic() on error path
3: AMD/IOMMU: iommu_enable vs iommu_intremap

Jan




 


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