X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=drivers%2Fvfio%2Fvfio.c;h=4ad8a35667a76e7eb3166bccba06cd6532d680cd;hb=a409ed156a90093a03fe6a93721ddf4c591eac87;hp=2151bc7f87ab15d2ab506bc0aa945d265430b20e;hpb=f67d6620e413a167e861ce5733c1be5a2384e0c4;p=linux-2.6-microblaze.git

diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 2151bc7f87ab..4ad8a35667a7 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -2331,6 +2331,24 @@ int vfio_unregister_notifier(struct device *dev, enum vfio_notify_type type,
 }
 EXPORT_SYMBOL(vfio_unregister_notifier);
 
+struct iommu_domain *vfio_group_iommu_domain(struct vfio_group *group)
+{
+	struct vfio_container *container;
+	struct vfio_iommu_driver *driver;
+
+	if (!group)
+		return ERR_PTR(-EINVAL);
+
+	container = group->container;
+	driver = container->iommu_driver;
+	if (likely(driver && driver->ops->group_iommu_domain))
+		return driver->ops->group_iommu_domain(container->iommu_data,
+						       group->iommu_group);
+
+	return ERR_PTR(-ENOTTY);
+}
+EXPORT_SYMBOL_GPL(vfio_group_iommu_domain);
+
 /**
  * Module/class support
  */