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[Xen-devel] [PATCH v4 0/4] Fix grant/foreign mappings with auto-translated guests



This series adds proper IOMMU entries when mapping foreign memory 
(either grants or foreign pages) inside of auto-translated guests 
when the p2m is not shared between HAP and IOMMUs, and disables p2m 
sharing when running on AMD hardware.

In order for the guest to know if it's safe to use grant mapped pages 
for IO with hardware devices a new xen cpuid feature is introduced in 
the last patch.

Thanks for the review, Roger.

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