On Mon, Apr 15, 2024 at 01:32:03PM +0800, Baolu Lu wrote:
> On 4/12/24 4:15 PM, Yi Liu wrote:
> > diff --git a/include/linux/iommu.h b/include/linux/iommu.h
> > index 40dd439307e8..1e5e9249c93f 100644
> > --- a/include/linux/iommu.h
> > +++ b/include/linux/iommu.h
> > @@ -631,7 +631,7 @@ struct iommu_ops {
> > struct iommu_domain_ops {
> > int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
> > int (*set_dev_pasid)(struct iommu_domain *domain, struct device *dev,
> > - ioasid_t pasid);
> > + ioasid_t pasid, struct iommu_domain *old);
>
> Is it possible to add another op to replace a domain for pasid? For
> example,
>
> int (*replace_dev_pasid)(domain, dev, pasid, old_domain)
We haven't needed that in the normal case, what would motivate it
here?
Jason
