On Fri, Apr 07, 2017 at 08:17:44PM +0100, Jean-Philippe Brucker wrote: > There are a number of advantages in a paravirtualized IOMMU over a full > emulation. It is portable and could be reused on different architectures. > It is easier to implement than a full emulation, with less state tracking. > It might be more efficient in some cases, with less context switches to > the host and the possibility of in-kernel emulation. Thanks, this is very interesting. I am read to read it all, but I really would like you to expand some more on the motivation for this work. Productising this would be quite a bit of work. Spending just 6 lines on motivation seems somewhat disproportionate. In particular, do you have any specific efficiency measurements or estimates that you can share? -- MST
