1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c
index 742928d0053e..84ba3058eada 100644
--- a/drivers/pci/p2pdma.c
+++ b/drivers/pci/p2pdma.c
@@ -18,6 +18,7 @@
 #include <linux/percpu-refcount.h>
 #include <linux/random.h>
 #include <linux/seq_buf.h>
+#include <linux/iommu.h>
 
 struct pci_p2pdma {
         struct percpu_ref devmap_ref;
@@ -284,6 +285,9 @@ static bool root_complex_whitelist(struct pci_dev *dev)
         struct pci_dev *root = pci_get_slot(host->bus, PCI_DEVFN(0, 0));
         unsigned short vendor, device;
 
+        if (iommu_present(dev->dev.bus))
+                return false;
+
         if (!root)
                 return false;