From: Joerg Roedel <jroe...@suse.de>
Some broken devices might use any request-id from the alias
group, so we need to set a DTE entry for every device in
there. This patch adds creation of those lists.
Signed-off-by: Joerg Roedel <jroe...@suse.de>
---
drivers/iommu/amd_iommu.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index fe6d7cc..8a15256 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -93,6 +93,7 @@ static struct dma_map_ops amd_iommu_dma_ops;
struct iommu_dev_data {
struct list_head list; /* For domain->dev_list */
struct list_head dev_data_list; /* For global dev_data_list */
+ struct list_head alias_list; /* Link alias-groups together */
struct iommu_dev_data *alias_data;/* The alias dev_data */
struct protection_domain *domain; /* Domain the device is bound to */
atomic_t bind; /* Domain attach reference count */
@@ -135,6 +136,8 @@ static struct iommu_dev_data *alloc_dev_data(u16 devid)
if (!dev_data)
return NULL;
+ INIT_LIST_HEAD(&dev_data->alias_list);
+
dev_data->devid = devid;
atomic_set(&dev_data->bind, 0);
@@ -383,6 +386,9 @@ static int iommu_init_device(struct device *dev)
return -ENOTSUPP;
}
dev_data->alias_data = alias_data;
+
+ /* Add device to the alias_list */
+ list_add(&dev_data->alias_list, &alias_data->alias_list);
}
ret = init_iommu_group(dev);
--
1.9.1
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