On Thu, Jun 16, 2022 at 06:40:14AM +0000, Tian, Kevin wrote: > > The domain->ops validation was added, as a precaution, for mixed-driver > > systems. However, at this moment only one iommu driver is possible. So > > remove it. > > It's true on a physical platform. But I'm not sure whether a virtual platform > is allowed to include multiple e.g. one virtio-iommu alongside a virtual VT-d > or a virtual smmu. It might be clearer to claim that (as Robin pointed out) > there is plenty more significant problems than this to solve instead of simply > saying that only one iommu driver is possible if we don't have explicit code > to reject such configuration. 😊 Will edit this part. Thanks!
