libxl_pci-stubdom-fix.patch

diff --git a/tools/libxl/libxl_pci.c b/tools/libxl/libxl_pci.c
index 236bdd0..555ac73 100644
--- a/tools/libxl/libxl_pci.c
+++ b/tools/libxl/libxl_pci.c
@@ -111,6 +111,7 @@ int libxl__create_pci_backend(libxl__gc *gc, uint32_t domid,
 
 static int libxl__device_pci_add_xenstore(libxl__gc *gc, uint32_t domid, libxl_device_pci *pcidev, int starting)
 {
+    libxl_ctx *ctx = libxl__gc_owner(gc);
     flexarray_t *back;
     char *num_devs, *be_path;
     int num = 0;
@@ -148,29 +149,33 @@ static int libxl__device_pci_add_xenstore(libxl__gc *gc, uint32_t domid, libxl_d
     if (!starting)
         flexarray_append_pair(back, "state", GCSPRINTF("%d", XenbusStateReconfiguring));
 
-    GCNEW(device);
-    libxl__device_from_pcidev(gc, domid, pcidev, device);
+    if (!libxl_is_stubdom(ctx, domid, NULL)) {
+        GCNEW(device);
+        libxl__device_from_pcidev(gc, domid, pcidev, device);
 
-    lock = libxl__lock_domain_userdata(gc, domid);
-    if (!lock) {
-        rc = ERROR_LOCK_FAIL;
-        goto out;
-    }
+        lock = libxl__lock_domain_userdata(gc, domid);
+        if (!lock) {
+            rc = ERROR_LOCK_FAIL;
+            goto out;
+        }
 
-    rc = libxl__get_domain_configuration(gc, domid, &d_config);
-    if (rc) goto out;
+        rc = libxl__get_domain_configuration(gc, domid, &d_config);
+        if (rc) goto out;
 
-    DEVICE_ADD(pci, pcidevs, domid, &pcidev_saved, COMPARE_PCI, &d_config);
+        DEVICE_ADD(pci, pcidevs, domid, &pcidev_saved, COMPARE_PCI, &d_config);
 
-    rc = libxl__dm_check_start(gc, &d_config, domid);
-    if (rc) goto out;
+        rc = libxl__dm_check_start(gc, &d_config, domid);
+        if (rc) goto out;
+    }
 
     for (;;) {
         rc = libxl__xs_transaction_start(gc, &t);
         if (rc) goto out;
 
-        rc = libxl__set_domain_configuration(gc, domid, &d_config);
-        if (rc) goto out;
+        if (!libxl_is_stubdom(ctx, domid, NULL)) {
+            rc = libxl__set_domain_configuration(gc, domid, &d_config);
+            if (rc) goto out;
+        }
 
         libxl__xs_writev(gc, t, be_path,
                          libxl__xs_kvs_of_flexarray(gc, back, back->count));