On Tuesday 19 August 2008, ehrhardt@xxxxxxxxxxxxxxxxxx wrote: > Dependent on the already existing CONFIG_KVM_GUEST config option this patch > changes wrteei to wrtee allowing the hypervisor to rewrite those to nontrapping > instructions. Maybe we should split the kvm guest otpimizations in two parts > one for the overhead free optimizations and on for the rest that might add > some complexity for non virtualized execution (like this one). > > Signed-off-by: Christian Ehrhardt <ehrhardt@xxxxxxxxxxxxxxxxxx> How significant is the performance impact of this change for non-virtualized systems? If it's very low, maybe you should not bother with the #ifdef, and if it's noticable, you might be better off using dynamic patching for this. Arnd <>< -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
