2017-02-08 11:04+0100, Paolo Bonzini: > On 07/02/2017 22:52, Radim Krčmář wrote: >> there might be some rough >> edges with nested, but it was broken even before, and they fix at least >> one known bug. > > I don't think so, nested IRQ injection is tested very well. Why do you > say it was broken even before? I was basing on recent bug report where we missed IOMMU injection in a non-nested case [1]. While we do cover the non-nested case with this series, I think we still miss posted interrupts from IOMMU that should trigger a nested VM exit from L2 to L1 -- details in review of [6/6]. 1: http://www.spinics.net/lists/kvm/msg144355.html