[RFC PATCH 10/20] VFIO: notify vIOMMU emulator when device is assigned

["Liu, Yi L" <yi.l.liu@xxxxxxxxxxxxxxx>]

With vIOMMU exposed to guest, notify vIOMMU emulator to record information
of this assigned device. This patch adds iommu_ops->record_device to record
the host bus/slot/function for this device. In future, it can be extended to
other info which is needed.

Signed-off-by: Liu, Yi L <yi.l.liu@xxxxxxxxxxxxxxx>
---
 hw/vfio/pci.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 9e13472..a1e6942 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -2881,6 +2881,10 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
                                    subregion,
                                    0,
                                    &n1);
+
+            memory_region_notify_device_record(subregion,
+                                               &vdev->host);
+
         }
     }
 
-- 
1.9.1