On 12/07/17 23:07, Michael S. Tsirkin wrote: [...] > I think using hardware support for nesting is the right final > solution. It will take some time though. Given this, what should > we do meanwhile? > > Assuming that's the final destination, a simple quirk like this > seems to be preferable to virtio-iommu which we'll never be > able to offload to hardware.
That's not entirely true. virtio-iommu will have an extension for hardware nesting support. It was presented in my initial proposal, and I've made significant progress since then. Thanks, Jean
