Gleb Natapov <gleb@xxxxxxxxxx> writes: > Considering that interrupt remapping is fairly new feature > are you saying that hotplug (pci and cpu) on x86 is a horrible > hack on Linux? Just the current cpu hotplug path. >> It is better than nothing but it certainly is not something >> I would expect to work all of the time. >> > Because of horrible code or non-complaint ioapic implementation out > there? If later this is not a big issue for KVM. Both. And even in spec ioapics can't be made to work 100% reliably. >> Interrupt remapping is the one case where we have hardware >> that works according to spec and that works reasonably well. >> > I am sure when there was only one ioapic implementation in existence > it worked according to a spec (and if not spec was changed :)) Give > interrupt remapping some time and than we will see how above statement > holds. What we need for cpu hotplug/unplug is on the tested path now. That is a significant difference. Eric -- 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
