1 files changed, 7 insertions, 0 deletions
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 213d57e9fe..854b8f22bf 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1815,6 +1815,11 @@ static void virtio_pci_realize(PCIDevice *pci_dev, Error **errp)
          * PCI Power Management Interface Specification.
          */
         pci_set_word(pci_dev->config + pos + PCI_PM_PMC, 0x3);
+
+        if (proxy->flags & VIRTIO_PCI_FLAG_ATS) {
+            pcie_ats_init(pci_dev, 256);
+        }
+
     } else {
         /*
          * make future invocations of pci_is_express() return false
@@ -1868,6 +1873,8 @@ static Property virtio_pci_properties[] = {
                     VIRTIO_PCI_FLAG_PAGE_PER_VQ_BIT, false),
     DEFINE_PROP_BOOL("x-ignore-backend-features", VirtIOPCIProxy,
                      ignore_backend_features, false),
+    DEFINE_PROP_BIT("ats", VirtIOPCIProxy, flags,
+                    VIRTIO_PCI_FLAG_ATS_BIT, false),
     DEFINE_PROP_END_OF_LIST(),
 };