On Fri, 11 Sep 2015 17:25:45 +0800
Jason Wang <jasowang@xxxxxxxxxx> wrote:
> On 09/11/2015 03:46 PM, Cornelia Huck wrote:
> > On Fri, 11 Sep 2015 11:17:35 +0800
> > Jason Wang <jasowang@xxxxxxxxxx> wrote:
> >> +
> >> + /* When length is ignored, MMIO is also put on a separate bus, for
> >> + * faster lookups.
> >> + */
> >> + if (!args->len && !(args->flags & KVM_IOEVENTFD_FLAG_PIO)) {
> > Dito on a positive check for bus_idx == KVM_MMIO_BUS.
>
> I was thinking maybe this should be done in a separate patch on top.
> What's your opinion?
The check is an independent issue, an extra patch is fine (current
usage does not trigger any problems).
>
> >> + ret = kvm_assign_ioeventfd_idx(kvm, KVM_FAST_MMIO_BUS, args);
> >> + if (ret < 0)
> >> + goto fast_fail;
> >> + }
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