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-rw-r--r--drivers/iommu/iova.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index b0ca23682008..3aee64b99df1 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -704,6 +704,9 @@ copy_reserved_iova(struct iova_domain *from, struct iova_domain *to)
struct iova *iova = rb_entry(node, struct iova, node);
struct iova *new_iova;
+ if (iova->pfn_lo == IOVA_ANCHOR)
+ continue;
+
new_iova = reserve_iova(to, iova->pfn_lo, iova->pfn_hi);
if (!new_iova)
printk(KERN_ERR "Reserve iova range %lx@%lx failed\n",
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