On Thu, Aug 13, 2015 at 09:31:48AM +0200, Paolo Bonzini wrote: Pinging this thread. Should I put together a patch to make split irqchip work properly with the old TMR behavior? > > > On 13/08/2015 08:35, Zhang, Yang Z wrote: > >> You may be right. It is safe if no future hardware plans to use > >> it. Let me check with our hardware team to see whether it will be > >> used or not in future. > > > > After checking with Jun, there is no guarantee that the guest running > > on another CPU will operate properly if hypervisor modify the vTMR > > from another CPU. So the hypervisor should not to do it. > > I guess I can cause a vmexit on level-triggered interrupts, it's not a > big deal, but no weasel words, please. > > What's going to break, and where is it documented? > > 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 -- 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
