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| author | Joerg Roedel <jroedel@suse.de> | 2015-05-28 18:41:35 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2015-06-09 08:55:24 +0200 |
| commit | 6827ca83695d5e41ad31b0719788ee65f00ca4b3 (patch) | |
| tree | b0e50628d3130c15a507eb4a28ee4498164c6542 | |
| parent | beed2821b4f42c268222c4c1f1795e53340acf64 (diff) | |
iommu: Add function to query the default domain of a group
This will be used to handle unity mappings in the iommu
drivers.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
| -rw-r--r-- | drivers/iommu/iommu.c | 5 | ||||
| -rw-r--r-- | include/linux/iommu.h | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index ffad1eaf450d..224c6dd2d249 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -837,6 +837,11 @@ struct iommu_group *iommu_group_get_for_dev(struct device *dev) return group; } +struct iommu_domain *iommu_group_default_domain(struct iommu_group *group) +{ + return group->default_domain; +} + static int add_iommu_group(struct device *dev, void *data) { struct iommu_callback_data *cb = data; diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 689499904166..b944b2be4fa2 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -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); |