Re: [PATCH v4 09/17] iommufd/device: Add helpers to enforce/remove device reserved regions

[Nicolin Chen]

On Sat, Oct 07, 2023 at 03:20:41PM +0800, Yan Zhao wrote:
> > @@ -444,10 +465,9 @@ iommufd_device_do_replace(struct iommufd_device *idev,
> >       }
> >
> >       old_hwpt = igroup->hwpt;
> > -     if (hwpt->ioas != old_hwpt->ioas) {
> > +     if (iommufd_hw_pagetable_compare_ioas(old_hwpt, hwpt)) {
> >               list_for_each_entry(cur, &igroup->device_list, group_item) {
> > -                     rc = iopt_table_enforce_dev_resv_regions(
> > -                             &hwpt->ioas->iopt, cur->dev, NULL);
> > +                     rc = iommufd_device_enforce_rr(cur, hwpt, NULL);
> >                       if (rc)
> >                               goto err_unresv;
> >               }
> > @@ -461,12 +481,10 @@ iommufd_device_do_replace(struct iommufd_device *idev,
> >       if (rc)
> >               goto err_unresv;
> >
> > -     if (hwpt->ioas != old_hwpt->ioas) {
> > +     if (iommufd_hw_pagetable_compare_ioas(old_hwpt, hwpt)) {
> >               list_for_each_entry(cur, &igroup->device_list, group_item)
> > -                     iopt_remove_reserved_iova(&old_hwpt->ioas->iopt,
> > -                                               cur->dev);
> > +                     iommufd_device_remove_rr(cur, hwpt);
> Should be "iommufd_device_remove_rr(cur, old_hwpt);"

Ah, right. Should fix this.

Thanks!
Nicolin