On 5 October 2012 03:24, Alexander Graf <agraf@xxxxxxx> wrote: > On 05.10.2012, at 04:17, Anthony Liguori wrote: >> Alexander Graf <agraf@xxxxxxx> writes: >>> We get similar problems on PPC. Take the following example: >>> >>> $ qemu-system-ppc -M mpc8544ds -kernel uImage -nographic >> >> But do you really expect people to do this? I have to believe that >> people running on PPC hardware and running qemu-system-ppc most likely >> want to do KVM... > > Sure. But we wouldn't be able to even tell them what went wrong, > as we don't have a negotiation mechanism right now that could tell > user space "hey, the CPU you selected is unknown to me". On ARM we will at least be able to say what happened, because our kvm_arch_init_vcpu() will fail (when we try the ioctl to tell the kernel "be this kind of CPU") and we can print a message there. However QEMU as a whole doesn't have any way of falling back to TCG at that point so it just bails out. -- PMM -- 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
