Hi all, We're running a KVM based OpenStack cloud. I recently realised we don't have the IOMMU turned on in our hypervisors. All indications I know about and can find suggest it's only really useful if you want guests accessing host devices directly, e.g., PCI pass-through. But I wonder if there are any other performance advantages to be gained...? Virtio, for one, doesn't seem to use this/need this.
-- Cheers, ~Blairo
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