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iommu: Add function to query the default domain of a group

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This will be used to handle unity mappings in the iommu
drivers.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Joerg Roedel
2015-05-28 18:41:35 +02:00
parent beed2821b4
commit 6827ca8369
2 changed files with 6 additions and 0 deletions
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include/linux/iommu.h
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@@ -249,6 +249,7 @@ extern int iommu_group_unregister_notifier(struct iommu_group *group,
struct notifier_block *nb);
extern int iommu_group_id(struct iommu_group *group);
extern struct iommu_group *iommu_group_get_for_dev(struct device *dev);
extern struct iommu_domain *iommu_group_default_domain(struct iommu_group *);
extern int iommu_domain_get_attr(struct iommu_domain *domain, enum iommu_attr,
void *data);