iommu/vt-d: Remove change_pte notifier
The change_pte() interface is tailored for PFN updates, while the other notifier invalidate_range() should be enough for Intel IOMMU cache flushing. Actually we've done similar thing for AMD IOMMU already in 8301da53 ("iommu/amd: Remove change_pte mmu_notifier call-back", 2014-07-30) but the Intel IOMMU driver still have it. Signed-off-by: NPeter Xu <peterx@redhat.com> Signed-off-by: NJoerg Roedel <jroedel@suse.de>
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