On Sun, Nov 26, 2023 at 10:34:21PM -0800, Yi Liu wrote:
> +int iommu_replace_device_pasid(struct iommu_domain *domain,
> + struct device *dev, ioasid_t pasid)
> +{
> + struct iommu_group *group = dev->iommu_group;
> + struct iommu_domain *old_domain;
> + int ret;
> +
> + if (!domain)
> + return -EINVAL;
> +
> + if (!group)
> + return -ENODEV;
> +
> + mutex_lock(&group->mutex);
> + __iommu_remove_group_pasid(group, pasid);
It is not replace if you do remove first.
Replace must just call set_dev_pasid and nothing much else..
Jason
