Hi Suzuki,
On Fri, 13 Dec 2019 18:59:32 +0000,
Suzuki Kuruppassery Poulose <suzuki.poulose@xxxxxxx> wrote:
>
> Hi Marc,
>
>
> On 13/12/2019 18:24, Marc Zyngier wrote:
> > kvm_unmap_hva_range() is currently passed both start and end
> > fields from the mmu_notifier_range structure. As this struct
> > now contains important information about the reason of the
> > unmap (the event field), replace the start/end parameters
> > with the range struct, and update all architectures.
> >
> > No functionnal change.
> >
> > Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
>
>
> > diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
> > index 00268290dcbd..7c3665ad1035 100644
> > --- a/virt/kvm/kvm_main.c
> > +++ b/virt/kvm/kvm_main.c
> > @@ -158,7 +158,7 @@ static unsigned long long kvm_createvm_count;
> > static unsigned long long kvm_active_vms;
> > __weak int kvm_arch_mmu_notifier_invalidate_range(struct kvm
> > *kvm,
> > - unsigned long start, unsigned long end, bool blockable)
> > + const struct mmu_notifier_range *range, bool blockable)
> > {
> > return 0;
> > }
> > @@ -415,7 +415,7 @@ static int kvm_mmu_notifier_invalidate_range_start(struct mmu_notifier *mn,
> > * count is also read inside the mmu_lock critical section.
> > */
> > kvm->mmu_notifier_count++;
> > - need_tlb_flush = kvm_unmap_hva_range(kvm, range->start, range->end);
> > + need_tlb_flush = kvm_unmap_hva_range(kvm, range);
> > need_tlb_flush |= kvm->tlbs_dirty;
> > /* we've to flush the tlb before the pages can be freed */
> > if (need_tlb_flush)
> > @@ -423,8 +423,7 @@ static int kvm_mmu_notifier_invalidate_range_start(struct mmu_notifier *mn,
> > spin_unlock(&kvm->mmu_lock);
> > - ret = kvm_arch_mmu_notifier_invalidate_range(kvm,
> > range->start,
> > - range->end,
> > + ret = kvm_arch_mmu_notifier_invalidate_range(kvm, range,
> > mmu_notifier_range_blockable(range));
>
> minor nit:
>
> Since we now have the range passed on to the arch hooks, we could get
> rid of the "blockable" too, as it is something you can deduce from the
> range.
Absolutely. That'd be a nice cleanup.
> Otherwise looks good to me.
Thanks,
M.
--
Jazz is not dead, it just smells funny.
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