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SubjectRE: [PATCH 07/12] iommu/vt-d: Cleanup use of iommu_flush_iotlb_psi()
Date
> From: Lu Baolu <baolu.lu@linux.intel.com>
> Sent: Monday, March 25, 2024 10:17 AM
>
> Use cache_tag_flush_range() in switch_to_super_page() to invalidate the
> necessary caches when switching mappings from normal to super pages. The
> iommu_flush_iotlb_psi() call in intel_iommu_memory_notifier() is
> unnecessary since there should be no cache invalidation for the identity
> domain.
>

what about a software identity domain?

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