On Wed, Nov 30, 2016 at 8:31 AM, Marc Zyngier <marc.zyngier@xxxxxxx> wrote: > On 29/11/16 21:05, Jintack Lim wrote: >> On Tue, Nov 29, 2016 at 11:53 AM, Suzuki K Poulose >> <suzuki.poulose@xxxxxxx> wrote: >>> On 29/11/16 09:36, Marc Zyngier wrote: >>>> >>>> On 29/11/16 03:28, Jintack Lim wrote: >>>>> >>>>> On Mon, Nov 28, 2016 at 1:39 PM, Marc Zyngier <marc.zyngier@xxxxxxx> >>>>> wrote: >>>>>> >>>>>> On 28/11/16 17:43, Marc Zyngier wrote: >>>>> >>>>> This looks much cleaner than my patch. >>>>> While we are at it, is it worth to consider that we just need to set >>>>> those bits once for VHE case, not for every world switch as an >>>>> optimization? >>>> >>>> >>>> Ah! That's a much better idea indeed! And we could stop messing with >>>> cntvoff_el2 as well, as it doesn't need to be restored to zero on exit. >>>> Could you try and respin something along those lines? >>>> >>> >>> fyi, we have a static_key based cpus_have_const_cap() for Constant cap >>> checking (like this case) available in linux-next. May be you could make use >>> of that instead of alternatives. >> >> Thanks Suzuki. This looks very useful. >> >> Marc, can I write a patch based on linux-next? The commit which has >> cpus_have_const_cap() is not in master and next branch in kvm/arm >> repo. > > You can. It is just that I won't be able to apply it immediately (I'll > wait for -rc1 to be out, and send it as a fix). Ok. Thanks!. I'll send out v2. > > Thanks, > > M. > -- > Jazz is not dead. It just smells funny... > -- 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
