On 17.08.2010, at 20:28, Scott Wood wrote: > On Tue, 17 Aug 2010 15:57:56 +0200 > Alexander Graf <agraf@xxxxxxx> wrote: > >> There are some heuristics in the PPC power management code that try to find >> out if the particular hardware we're running on supports proper power management >> or just hangs the machine when going into nap mode. >> >> Since we know that KVM is safe with nap, let's force enable it in the PV code >> once we're certain that we are on a KVM VM. > > Could this cause the cache to be flushed unnecessarily on e500? Where > available, doze would probably be better for signalling the hypervisor > that the guest is idle. You're right - this should be #ifdef'ed on Book3s. I'll add that as a patch on top, as Qemu on BookE doesn't expose KVM capabilities yet. Alex -- 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
