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-rw-r--r--drivers/vfio/pci/vfio_pci_core.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c
index ca9a95716a85..142b84b3f225 100644
--- a/drivers/vfio/pci/vfio_pci_core.c
+++ b/drivers/vfio/pci/vfio_pci_core.c
@@ -28,6 +28,7 @@
#include <linux/nospec.h>
#include <linux/sched/mm.h>
#include <linux/iommufd.h>
+#include <linux/pci-p2pdma.h>
#if IS_ENABLED(CONFIG_EEH)
#include <asm/eeh.h>
#endif
@@ -2081,6 +2082,7 @@ int vfio_pci_core_init_dev(struct vfio_device *core_vdev)
{
struct vfio_pci_core_device *vdev =
container_of(core_vdev, struct vfio_pci_core_device, vdev);
+ int ret;
vdev->pdev = to_pci_dev(core_vdev->dev);
vdev->irq_type = VFIO_PCI_NUM_IRQS;
@@ -2090,6 +2092,9 @@ int vfio_pci_core_init_dev(struct vfio_device *core_vdev)
INIT_LIST_HEAD(&vdev->dummy_resources_list);
INIT_LIST_HEAD(&vdev->ioeventfds_list);
INIT_LIST_HEAD(&vdev->sriov_pfs_item);
+ ret = pcim_p2pdma_init(vdev->pdev);
+ if (ret && ret != -EOPNOTSUPP)
+ return ret;
init_rwsem(&vdev->memory_lock);
xa_init(&vdev->ctx);