On 09/01/2015 16:12, Radim Krčmář wrote: > > The chipset doesn't support it. :( > > I meant that we need to recompute PI entries for lowest priority > interrupts every time guest's TPR changes. > > Luckily, Linux doesn't use TPR, but other OS might be a reason to drop > lowest priority from PI optimizations. (Or make it more complicated.) Doing vector hashing is a possibility as well. I would like to know what existing chipsets do in practice, then we can mimic it. Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html