Re: [RFC PATCH V3 09/11] HV/IOMMU: Enable swiotlb bounce buffer for Isolation VM

[Christoph Hellwig]

Honestly, we really need to do away with the concept of hypervisor-
specific swiotlb allocations and just add a hypervisor hook to remap the
"main" buffer. That should remove a lot of code and confusion not just
for Xen but also any future addition like hyperv.
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