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-rw-r--r--tests/iothread.c10
-rwxr-xr-xtests/qemu-iotests/0266
-rw-r--r--tests/qemu-iotests/026.out80
-rw-r--r--tests/qemu-iotests/026.out.nocache80
-rwxr-xr-xtests/qemu-iotests/0568
-rwxr-xr-xtests/qemu-iotests/12483
-rwxr-xr-xtests/qemu-iotests/12545
-rw-r--r--tests/qemu-iotests/141.out2
-rwxr-xr-xtests/qemu-iotests/1492
-rw-r--r--tests/qemu-iotests/149.out44
-rwxr-xr-xtests/qemu-iotests/1622
-rw-r--r--tests/qemu-iotests/162.out2
-rw-r--r--tests/qemu-iotests/227.out18
-rwxr-xr-xtests/qemu-iotests/25791
-rw-r--r--tests/qemu-iotests/257.out714
-rw-r--r--tests/qemu-iotests/common.rc17
-rw-r--r--tests/qemu-iotests/iotests.py27
-rw-r--r--tests/test-vmstate.c421
18 files changed, 966 insertions, 686 deletions
diff --git a/tests/iothread.c b/tests/iothread.c
index 777d9eea46..13c9fdcd8d 100644
--- a/tests/iothread.c
+++ b/tests/iothread.c
@@ -55,10 +55,16 @@ static void *iothread_run(void *opaque)
     return NULL;
 }
 
-void iothread_join(IOThread *iothread)
+static void iothread_stop_bh(void *opaque)
 {
+    IOThread *iothread = opaque;
+
     iothread->stopping = true;
-    aio_notify(iothread->ctx);
+}
+
+void iothread_join(IOThread *iothread)
+{
+    aio_bh_schedule_oneshot(iothread->ctx, iothread_stop_bh, iothread);
     qemu_thread_join(&iothread->thread);
     qemu_cond_destroy(&iothread->init_done_cond);
     qemu_mutex_destroy(&iothread->init_done_lock);
diff --git a/tests/qemu-iotests/026 b/tests/qemu-iotests/026
index ffb18ab6b5..3430029ed6 100755
--- a/tests/qemu-iotests/026
+++ b/tests/qemu-iotests/026
@@ -107,7 +107,7 @@ if [ "$event" == "l2_load" ]; then
     $QEMU_IO -c "read $vmstate 0 128k " "$BLKDBG_TEST_IMG" | _filter_qemu_io
 fi
 
-_check_test_img 2>&1 | grep -v "refcount=1 reference=0"
+_check_test_img_ignore_leaks 2>&1 | grep -v "refcount=1 reference=0"
 
 done
 done
@@ -152,7 +152,7 @@ echo
 echo "Event: $event; errno: $errno; imm: $imm; once: $once; write $vmstate"
 $QEMU_IO -c "write $vmstate 0 64M" "$BLKDBG_TEST_IMG" | _filter_qemu_io
 
-_check_test_img 2>&1 | grep -v "refcount=1 reference=0"
+_check_test_img_ignore_leaks 2>&1 | grep -v "refcount=1 reference=0"
 
 done
 done
@@ -191,7 +191,7 @@ echo
 echo "Event: $event; errno: $errno; imm: $imm; once: $once"
 $QEMU_IO -c "write -b 0 64k" "$BLKDBG_TEST_IMG" | _filter_qemu_io
 
-_check_test_img 2>&1 | grep -v "refcount=1 reference=0"
+_check_test_img_ignore_leaks 2>&1 | grep -v "refcount=1 reference=0"
 
 done
 done
diff --git a/tests/qemu-iotests/026.out b/tests/qemu-iotests/026.out
index fb89b8480c..ff0817b6f2 100644
--- a/tests/qemu-iotests/026.out
+++ b/tests/qemu-iotests/026.out
@@ -17,18 +17,14 @@ Event: l1_update; errno: 5; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: Input/output error
 qemu-io: Failed to flush the refcount block cache: Input/output error
 write failed: Input/output error
-
-1 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: l1_update; errno: 5; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: Input/output error
 qemu-io: Failed to flush the refcount block cache: Input/output error
 write failed: Input/output error
-
-1 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: l1_update; errno: 28; imm: off; once: on; write
@@ -45,18 +41,14 @@ Event: l1_update; errno: 28; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-1 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: l1_update; errno: 28; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-1 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: l2_load; errno: 5; imm: off; once: on; write
@@ -137,18 +129,14 @@ Event: l2_update; errno: 5; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: Input/output error
 qemu-io: Failed to flush the refcount block cache: Input/output error
 write failed: Input/output error
-
-127 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: l2_update; errno: 5; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: Input/output error
 qemu-io: Failed to flush the refcount block cache: Input/output error
 write failed: Input/output error
-
-127 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: l2_update; errno: 28; imm: off; once: on; write
@@ -165,18 +153,14 @@ Event: l2_update; errno: 28; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-127 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: l2_update; errno: 28; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-127 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: l2_alloc_write; errno: 5; imm: off; once: on; write
@@ -200,9 +184,7 @@ Event: l2_alloc_write; errno: 5; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: Input/output error
 qemu-io: Failed to flush the refcount block cache: Input/output error
 write failed: Input/output error
-
-1 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: l2_alloc_write; errno: 28; imm: off; once: on; write
@@ -226,9 +208,7 @@ Event: l2_alloc_write; errno: 28; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-1 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: write_aio; errno: 5; imm: off; once: on; write
@@ -480,18 +460,14 @@ Event: refblock_alloc_hookup; errno: 28; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-55 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: refblock_alloc_hookup; errno: 28; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-251 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: refblock_alloc_write; errno: 28; imm: off; once: on; write
@@ -532,18 +508,14 @@ Event: refblock_alloc_write_blocks; errno: 28; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-10 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: refblock_alloc_write_blocks; errno: 28; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-23 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: refblock_alloc_write_table; errno: 28; imm: off; once: on; write
@@ -560,18 +532,14 @@ Event: refblock_alloc_write_table; errno: 28; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-10 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: refblock_alloc_write_table; errno: 28; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-23 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: refblock_alloc_switch_table; errno: 28; imm: off; once: on; write
@@ -588,18 +556,14 @@ Event: refblock_alloc_switch_table; errno: 28; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-10 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: refblock_alloc_switch_table; errno: 28; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-23 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 
 === L1 growth tests ===
 
@@ -658,9 +622,7 @@ Event: l1_grow_activate_table; errno: 5; imm: off; once: off
 qemu-io: Failed to flush the L2 table cache: Input/output error
 qemu-io: Failed to flush the refcount block cache: Input/output error
 write failed: Input/output error
-
-96 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 
 Event: l1_grow_activate_table; errno: 28; imm: off; once: on
@@ -672,9 +634,7 @@ Event: l1_grow_activate_table; errno: 28; imm: off; once: off
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-96 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 
 === Avoid cluster leaks after temporary failure ===
 
diff --git a/tests/qemu-iotests/026.out.nocache b/tests/qemu-iotests/026.out.nocache
index 6dda95dfb4..495d013007 100644
--- a/tests/qemu-iotests/026.out.nocache
+++ b/tests/qemu-iotests/026.out.nocache
@@ -17,18 +17,14 @@ Event: l1_update; errno: 5; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: Input/output error
 qemu-io: Failed to flush the refcount block cache: Input/output error
 write failed: Input/output error
-
-1 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: l1_update; errno: 5; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: Input/output error
 qemu-io: Failed to flush the refcount block cache: Input/output error
 write failed: Input/output error
-
-1 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: l1_update; errno: 28; imm: off; once: on; write 
@@ -45,18 +41,14 @@ Event: l1_update; errno: 28; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-1 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: l1_update; errno: 28; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-1 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: l2_load; errno: 5; imm: off; once: on; write 
@@ -140,9 +132,7 @@ qemu-io: Failed to flush the L2 table cache: Input/output error
 qemu-io: Failed to flush the refcount block cache: Input/output error
 wrote 131072/131072 bytes at offset 0
 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-
-127 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: l2_update; errno: 5; imm: off; once: off; write -b
@@ -150,9 +140,7 @@ qemu-io: Failed to flush the L2 table cache: Input/output error
 qemu-io: Failed to flush the refcount block cache: Input/output error
 wrote 131072/131072 bytes at offset 0
 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-
-127 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: l2_update; errno: 28; imm: off; once: on; write 
@@ -172,9 +160,7 @@ qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 wrote 131072/131072 bytes at offset 0
 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-
-127 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: l2_update; errno: 28; imm: off; once: off; write -b
@@ -182,9 +168,7 @@ qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 wrote 131072/131072 bytes at offset 0
 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-
-127 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: l2_alloc_write; errno: 5; imm: off; once: on; write 
@@ -208,9 +192,7 @@ Event: l2_alloc_write; errno: 5; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: Input/output error
 qemu-io: Failed to flush the refcount block cache: Input/output error
 write failed: Input/output error
-
-1 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: l2_alloc_write; errno: 28; imm: off; once: on; write 
@@ -234,9 +216,7 @@ Event: l2_alloc_write; errno: 28; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-1 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: write_aio; errno: 5; imm: off; once: on; write 
@@ -488,18 +468,14 @@ Event: refblock_alloc_hookup; errno: 28; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-55 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: refblock_alloc_hookup; errno: 28; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-251 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: refblock_alloc_write; errno: 28; imm: off; once: on; write 
@@ -540,18 +516,14 @@ Event: refblock_alloc_write_blocks; errno: 28; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-10 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: refblock_alloc_write_blocks; errno: 28; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-23 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: refblock_alloc_write_table; errno: 28; imm: off; once: on; write 
@@ -568,18 +540,14 @@ Event: refblock_alloc_write_table; errno: 28; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-10 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: refblock_alloc_write_table; errno: 28; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-23 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: refblock_alloc_switch_table; errno: 28; imm: off; once: on; write 
@@ -596,18 +564,14 @@ Event: refblock_alloc_switch_table; errno: 28; imm: off; once: off; write
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-10 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: refblock_alloc_switch_table; errno: 28; imm: off; once: off; write -b
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-23 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 
 === L1 growth tests ===
 
@@ -666,9 +630,7 @@ Event: l1_grow_activate_table; errno: 5; imm: off; once: off
 qemu-io: Failed to flush the L2 table cache: Input/output error
 qemu-io: Failed to flush the refcount block cache: Input/output error
 write failed: Input/output error
-
-96 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 
 
 Event: l1_grow_activate_table; errno: 28; imm: off; once: on
@@ -680,9 +642,7 @@ Event: l1_grow_activate_table; errno: 28; imm: off; once: off
 qemu-io: Failed to flush the L2 table cache: No space left on device
 qemu-io: Failed to flush the refcount block cache: No space left on device
 write failed: No space left on device
-
-96 leaked clusters were found on the image.
-This means waste of disk space, but no harm to data.
+No errors were found on the image.
 
 === Avoid cluster leaks after temporary failure ===
 
diff --git a/tests/qemu-iotests/056 b/tests/qemu-iotests/056
index 98c55d8e5a..f39287c162 100755
--- a/tests/qemu-iotests/056
+++ b/tests/qemu-iotests/056
@@ -133,6 +133,7 @@ class BackupTest(iotests.QMPTestCase):
         self.vm = iotests.VM()
         self.test_img = img_create('test')
         self.dest_img = img_create('dest')
+        self.dest_img2 = img_create('dest2')
         self.ref_img = img_create('ref')
         self.vm.add_drive(self.test_img)
         self.vm.launch()
@@ -141,6 +142,7 @@ class BackupTest(iotests.QMPTestCase):
         self.vm.shutdown()
         try_remove(self.test_img)
         try_remove(self.dest_img)
+        try_remove(self.dest_img2)
         try_remove(self.ref_img)
 
     def hmp_io_writes(self, drive, patterns):
@@ -253,9 +255,9 @@ class BackupTest(iotests.QMPTestCase):
         res = self.vm.qmp('query-block-jobs')
         self.assert_qmp(res, 'return[0]/status', 'concluded')
         # Leave zombie job un-dismissed, observe a failure:
-        res = self.qmp_backup_and_wait(serror="Node 'drive0' is busy: block device is in use by block job: backup",
+        res = self.qmp_backup_and_wait(serror="Job ID 'drive0' already in use",
                                        device='drive0', format=iotests.imgfmt,
-                                       sync='full', target=self.dest_img,
+                                       sync='full', target=self.dest_img2,
                                        auto_dismiss=False)
         self.assertEqual(res, False)
         # OK, dismiss the zombie.
@@ -265,7 +267,7 @@ class BackupTest(iotests.QMPTestCase):
         self.assert_qmp(res, 'return', [])
         # Ensure it's really gone.
         self.qmp_backup_and_wait(device='drive0', format=iotests.imgfmt,
-                                 sync='full', target=self.dest_img,
+                                 sync='full', target=self.dest_img2,
                                  auto_dismiss=False)
 
     def dismissal_failure(self, dismissal_opt):
diff --git a/tests/qemu-iotests/124 b/tests/qemu-iotests/124
index ca40ba3be2..d3e851e1ae 100755
--- a/tests/qemu-iotests/124
+++ b/tests/qemu-iotests/124
@@ -105,7 +105,7 @@ class TestIncrementalBackupBase(iotests.QMPTestCase):
         # Create a base image with a distinctive patterning
         drive0 = self.add_node('drive0')
         self.img_create(drive0['file'], drive0['fmt'])
-        self.vm.add_drive(drive0['file'])
+        self.vm.add_drive(drive0['file'], opts='node-name=node0')
         self.write_default_pattern(drive0['file'])
         self.vm.launch()
 
@@ -348,12 +348,14 @@ class TestIncrementalBackup(TestIncrementalBackupBase):
                             ('0xfe', '16M', '256k'),
                             ('0x64', '32736k', '64k')))
         # Check the dirty bitmap stats
-        result = self.vm.qmp('query-block')
-        self.assert_qmp(result, 'return[0]/dirty-bitmaps[0]/name', 'bitmap0')
-        self.assert_qmp(result, 'return[0]/dirty-bitmaps[0]/count', 458752)
-        self.assert_qmp(result, 'return[0]/dirty-bitmaps[0]/granularity', 65536)
-        self.assert_qmp(result, 'return[0]/dirty-bitmaps[0]/status', 'active')
-        self.assert_qmp(result, 'return[0]/dirty-bitmaps[0]/persistent', False)
+        self.assertTrue(self.vm.check_bitmap_status(
+            'node0', bitmap0.name, {
+                'name': 'bitmap0',
+                'count': 458752,
+                'granularity': 65536,
+                'status': 'active',
+                'persistent': False
+            }))
 
         # Prepare a cluster_size=128k backup target without a backing file.
         (target, _) = bitmap0.new_target()
@@ -670,9 +672,8 @@ class TestIncrementalBackupBlkdebug(TestIncrementalBackupBase):
         """
 
         drive0 = self.drives[0]
-        # NB: The blkdebug script here looks for a "flush, read, read" pattern.
-        # The flush occurs in hmp_io_writes, the first read in device_add, and
-        # the last read during the block job.
+        # NB: The blkdebug script here looks for a "flush, read" pattern.
+        # The flush occurs in hmp_io_writes, and the read during the block job.
         result = self.vm.qmp('blockdev-add',
                              node_name=drive0['id'],
                              driver=drive0['fmt'],
@@ -686,15 +687,11 @@ class TestIncrementalBackupBlkdebug(TestIncrementalBackupBase):
                                      'event': 'flush_to_disk',
                                      'state': 1,
                                      'new_state': 2
-                                 },{
-                                     'event': 'read_aio',
-                                     'state': 2,
-                                     'new_state': 3
                                  }],
                                  'inject-error': [{
                                      'event': 'read_aio',
                                      'errno': 5,
-                                     'state': 3,
+                                     'state': 2,
                                      'immediately': False,
                                      'once': True
                                  }],
@@ -708,23 +705,15 @@ class TestIncrementalBackupBlkdebug(TestIncrementalBackupBase):
                                           ('0xfe', '16M', '256k'),
                                           ('0x64', '32736k', '64k')))
 
-        # For the purposes of query-block visibility of bitmaps, add a drive
-        # frontend after we've written data; otherwise we can't use hmp-io
-        result = self.vm.qmp("device_add",
-                             id="device0",
-                             drive=drive0['id'],
-                             driver="virtio-blk")
-        self.assert_qmp(result, 'return', {})
-
         # Bitmap Status Check
-        query = self.vm.qmp('query-block')
-        ret = [bmap for bmap in query['return'][0]['dirty-bitmaps']
-               if bmap.get('name') == bitmap.name][0]
-        self.assert_qmp(ret, 'count', 458752)
-        self.assert_qmp(ret, 'granularity', 65536)
-        self.assert_qmp(ret, 'status', 'active')
-        self.assert_qmp(ret, 'busy', False)
-        self.assert_qmp(ret, 'recording', True)
+        self.assertTrue(self.vm.check_bitmap_status(
+            drive0['id'], bitmap.name, {
+                'count': 458752,
+                'granularity': 65536,
+                'status': 'active',
+                'busy': False,
+                'recording': True
+            }))
 
         # Start backup
         parent, _ = bitmap.last_target()
@@ -748,14 +737,14 @@ class TestIncrementalBackupBlkdebug(TestIncrementalBackupBase):
                                         'operation': 'read'})
 
         # Bitmap Status Check
-        query = self.vm.qmp('query-block')
-        ret = [bmap for bmap in query['return'][0]['dirty-bitmaps']
-               if bmap.get('name') == bitmap.name][0]
-        self.assert_qmp(ret, 'count', 458752)
-        self.assert_qmp(ret, 'granularity', 65536)
-        self.assert_qmp(ret, 'status', 'frozen')
-        self.assert_qmp(ret, 'busy', True)
-        self.assert_qmp(ret, 'recording', True)
+        self.assertTrue(self.vm.check_bitmap_status(
+            drive0['id'], bitmap.name, {
+                'count': 458752,
+                'granularity': 65536,
+                'status': 'frozen',
+                'busy': True,
+                'recording': True
+            }))
 
         # Resume and check incremental backup for consistency
         res = self.vm.qmp('block-job-resume', device=bitmap.drive['id'])
@@ -763,14 +752,14 @@ class TestIncrementalBackupBlkdebug(TestIncrementalBackupBase):
         self.wait_qmp_backup(bitmap.drive['id'])
 
         # Bitmap Status Check
-        query = self.vm.qmp('query-block')
-        ret = [bmap for bmap in query['return'][0]['dirty-bitmaps']
-               if bmap.get('name') == bitmap.name][0]
-        self.assert_qmp(ret, 'count', 0)
-        self.assert_qmp(ret, 'granularity', 65536)
-        self.assert_qmp(ret, 'status', 'active')
-        self.assert_qmp(ret, 'busy', False)
-        self.assert_qmp(ret, 'recording', True)
+        self.assertTrue(self.vm.check_bitmap_status(
+            drive0['id'], bitmap.name, {
+                'count': 0,
+                'granularity': 65536,
+                'status': 'active',
+                'busy': False,
+                'recording': True
+            }))
 
         # Finalize / Cleanup
         self.make_reference_backup(bitmap)
diff --git a/tests/qemu-iotests/125 b/tests/qemu-iotests/125
index dc4b8f5fb9..4e31aa4e5f 100755
--- a/tests/qemu-iotests/125
+++ b/tests/qemu-iotests/125
@@ -34,8 +34,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 
 get_image_size_on_host()
 {
-    $QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" | grep "disk size" \
-        | sed -e 's/^[^0-9]*\([0-9]\+\).*$/\1/'
+    echo $(($(stat -c '%b * %B' "$TEST_IMG_FILE")))
 }
 
 # get standard environment and filters
@@ -49,6 +48,46 @@ if [ -z "$TEST_IMG_FILE" ]; then
     TEST_IMG_FILE=$TEST_IMG
 fi
 
+# Test whether we are running on a broken XFS version.  There is this
+# bug:
+
+# $ rm -f foo
+# $ touch foo
+# $ block_size=4096 # Your FS's block size
+# $ fallocate -o $((block_size / 2)) -l $block_size foo
+# $ LANG=C xfs_bmap foo | grep hole
+#         1: [8..15]: hole
+#
+# The problem is that the XFS driver rounds down the offset and
+# rounds up the length to the block size, but independently.  As
+# such, it only allocates the first block in the example above,
+# even though it should allocate the first two blocks (because our
+# request is to fallocate something that touches both the first
+# two blocks).
+#
+# This means that when you then write to the beginning of the
+# second block, the disk usage of the first two blocks grows.
+#
+# That is precisely what fallocate() promises, though: That when you
+# write to an area that you have fallocated, no new blocks will have
+# to be allocated.
+
+touch "$TEST_IMG_FILE"
+# Assuming there is no FS with a block size greater than 64k
+fallocate -o 65535 -l 2 "$TEST_IMG_FILE"
+len0=$(get_image_size_on_host)
+
+# Write to something that in theory we have just fallocated
+# (Thus, the on-disk size should not increase)
+poke_file "$TEST_IMG_FILE" 65536 42
+len1=$(get_image_size_on_host)
+
+if [ $len1 -gt $len0 ]; then
+    _notrun "the test filesystem's fallocate() is broken"
+fi
+
+rm -f "$TEST_IMG_FILE"
+
 # Generally, we create some image with or without existing preallocation and
 # then resize it. Then we write some data into the image and verify that its
 # size does not change if we have used preallocation.
@@ -111,7 +150,7 @@ for GROWTH_SIZE in 16 48 80; do
                 if [ $file_length_2 -gt $file_length_1 ]; then
                     echo "ERROR (grow): Image length has grown from $file_length_1 to $file_length_2"
                 fi
-                if [ $create_mode != metadata ]; then
+                if [ $growth_mode != metadata ]; then
                     # The host size should not have grown either
                     if [ $host_size_2 -gt $host_size_1 ]; then
                         echo "ERROR (grow): Host size has grown from $host_size_1 to $host_size_2"
diff --git a/tests/qemu-iotests/141.out b/tests/qemu-iotests/141.out
index dbd3bdef6c..e3b578282d 100644
--- a/tests/qemu-iotests/141.out
+++ b/tests/qemu-iotests/141.out
@@ -10,7 +10,7 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/m.
 Formatting 'TEST_DIR/o.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.IMGFMT backing_fmt=IMGFMT
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "job0"}}
-{"error": {"class": "GenericError", "desc": "Node drv0 is in use"}}
+{"error": {"class": "GenericError", "desc": "Node 'drv0' is busy: node is used as backing hd of 'NODE_NAME'"}}
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "aborting", "id": "job0"}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_CANCELLED", "data": {"device": "job0", "len": 1048576, "offset": 0, "speed": 0, "type": "backup"}}
diff --git a/tests/qemu-iotests/149 b/tests/qemu-iotests/149
index 4f363f295f..8ab42e94c6 100755
--- a/tests/qemu-iotests/149
+++ b/tests/qemu-iotests/149
@@ -153,7 +153,7 @@ def cryptsetup_format(config):
 
     (password, slot) = config.first_password()
 
-    args = ["luksFormat"]
+    args = ["luksFormat", "--type", "luks1"]
     cipher = config.cipher + "-" + config.mode + "-" + config.ivgen
     if config.ivgen_hash is not None:
         cipher = cipher + ":" + config.ivgen_hash
diff --git a/tests/qemu-iotests/149.out b/tests/qemu-iotests/149.out
index 1407ce6dad..6877ab6c4a 100644
--- a/tests/qemu-iotests/149.out
+++ b/tests/qemu-iotests/149.out
@@ -2,7 +2,7 @@
 # Create image
 truncate TEST_DIR/luks-aes-256-xts-plain64-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-xts-plain64 --key-size 512 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain64-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-xts-plain64 --key-size 512 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain64-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-256-xts-plain64-sha1.img qiotest-145-aes-256-xts-plain64-sha1
 # Write test pattern 0xa7
@@ -122,7 +122,7 @@ unlink TEST_DIR/luks-aes-256-xts-plain64-sha1.img
 # Create image
 truncate TEST_DIR/luks-twofish-256-xts-plain64-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher twofish-xts-plain64 --key-size 512 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-twofish-256-xts-plain64-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher twofish-xts-plain64 --key-size 512 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-twofish-256-xts-plain64-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-twofish-256-xts-plain64-sha1.img qiotest-145-twofish-256-xts-plain64-sha1
 # Write test pattern 0xa7
@@ -242,7 +242,7 @@ unlink TEST_DIR/luks-twofish-256-xts-plain64-sha1.img
 # Create image
 truncate TEST_DIR/luks-serpent-256-xts-plain64-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher serpent-xts-plain64 --key-size 512 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-serpent-256-xts-plain64-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher serpent-xts-plain64 --key-size 512 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-serpent-256-xts-plain64-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-serpent-256-xts-plain64-sha1.img qiotest-145-serpent-256-xts-plain64-sha1
 # Write test pattern 0xa7
@@ -362,7 +362,7 @@ unlink TEST_DIR/luks-serpent-256-xts-plain64-sha1.img
 # Create image
 truncate TEST_DIR/luks-cast5-128-cbc-plain64-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher cast5-cbc-plain64 --key-size 128 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-cast5-128-cbc-plain64-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher cast5-cbc-plain64 --key-size 128 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-cast5-128-cbc-plain64-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-cast5-128-cbc-plain64-sha1.img qiotest-145-cast5-128-cbc-plain64-sha1
 # Write test pattern 0xa7
@@ -483,7 +483,7 @@ Skipping cast6-256-xts-plain64-sha1 in blacklist
 # Create image
 truncate TEST_DIR/luks-aes-256-cbc-plain-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-cbc-plain --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-cbc-plain-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-cbc-plain --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-cbc-plain-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-256-cbc-plain-sha1.img qiotest-145-aes-256-cbc-plain-sha1
 # Write test pattern 0xa7
@@ -603,7 +603,7 @@ unlink TEST_DIR/luks-aes-256-cbc-plain-sha1.img
 # Create image
 truncate TEST_DIR/luks-aes-256-cbc-plain64-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-cbc-plain64 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-cbc-plain64-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-cbc-plain64 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-cbc-plain64-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-256-cbc-plain64-sha1.img qiotest-145-aes-256-cbc-plain64-sha1
 # Write test pattern 0xa7
@@ -723,7 +723,7 @@ unlink TEST_DIR/luks-aes-256-cbc-plain64-sha1.img
 # Create image
 truncate TEST_DIR/luks-aes-256-cbc-essiv-sha256-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-cbc-essiv:sha256 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-cbc-essiv-sha256-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-cbc-essiv:sha256 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-cbc-essiv-sha256-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-256-cbc-essiv-sha256-sha1.img qiotest-145-aes-256-cbc-essiv-sha256-sha1
 # Write test pattern 0xa7
@@ -843,7 +843,7 @@ unlink TEST_DIR/luks-aes-256-cbc-essiv-sha256-sha1.img
 # Create image
 truncate TEST_DIR/luks-aes-256-xts-essiv-sha256-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-xts-essiv:sha256 --key-size 512 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-essiv-sha256-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-xts-essiv:sha256 --key-size 512 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-essiv-sha256-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-256-xts-essiv-sha256-sha1.img qiotest-145-aes-256-xts-essiv-sha256-sha1
 # Write test pattern 0xa7
@@ -963,7 +963,7 @@ unlink TEST_DIR/luks-aes-256-xts-essiv-sha256-sha1.img
 # Create image
 truncate TEST_DIR/luks-aes-128-xts-plain64-sha256-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-xts-plain64 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-128-xts-plain64-sha256-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-xts-plain64 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-128-xts-plain64-sha256-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-128-xts-plain64-sha256-sha1.img qiotest-145-aes-128-xts-plain64-sha256-sha1
 # Write test pattern 0xa7
@@ -1083,7 +1083,7 @@ unlink TEST_DIR/luks-aes-128-xts-plain64-sha256-sha1.img
 # Create image
 truncate TEST_DIR/luks-aes-192-xts-plain64-sha256-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-xts-plain64 --key-size 384 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-192-xts-plain64-sha256-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-xts-plain64 --key-size 384 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-192-xts-plain64-sha256-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-192-xts-plain64-sha256-sha1.img qiotest-145-aes-192-xts-plain64-sha256-sha1
 # Write test pattern 0xa7
@@ -1203,7 +1203,7 @@ unlink TEST_DIR/luks-aes-192-xts-plain64-sha256-sha1.img
 # Create image
 truncate TEST_DIR/luks-twofish-128-xts-plain64-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher twofish-xts-plain64 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-twofish-128-xts-plain64-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher twofish-xts-plain64 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-twofish-128-xts-plain64-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-twofish-128-xts-plain64-sha1.img qiotest-145-twofish-128-xts-plain64-sha1
 # Write test pattern 0xa7
@@ -1324,7 +1324,7 @@ Skipping twofish-192-xts-plain64-sha1 in blacklist
 # Create image
 truncate TEST_DIR/luks-serpent-128-xts-plain64-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher serpent-xts-plain64 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-serpent-128-xts-plain64-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher serpent-xts-plain64 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-serpent-128-xts-plain64-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-serpent-128-xts-plain64-sha1.img qiotest-145-serpent-128-xts-plain64-sha1
 # Write test pattern 0xa7
@@ -1444,7 +1444,7 @@ unlink TEST_DIR/luks-serpent-128-xts-plain64-sha1.img
 # Create image
 truncate TEST_DIR/luks-serpent-192-xts-plain64-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher serpent-xts-plain64 --key-size 384 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-serpent-192-xts-plain64-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher serpent-xts-plain64 --key-size 384 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-serpent-192-xts-plain64-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-serpent-192-xts-plain64-sha1.img qiotest-145-serpent-192-xts-plain64-sha1
 # Write test pattern 0xa7
@@ -1566,7 +1566,7 @@ Skipping cast6-192-xts-plain64-sha1 in blacklist
 # Create image
 truncate TEST_DIR/luks-aes-256-xts-plain64-sha224.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-xts-plain64 --key-size 512 --hash sha224 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain64-sha224.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-xts-plain64 --key-size 512 --hash sha224 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain64-sha224.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-256-xts-plain64-sha224.img qiotest-145-aes-256-xts-plain64-sha224
 # Write test pattern 0xa7
@@ -1686,7 +1686,7 @@ unlink TEST_DIR/luks-aes-256-xts-plain64-sha224.img
 # Create image
 truncate TEST_DIR/luks-aes-256-xts-plain64-sha256.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-xts-plain64 --key-size 512 --hash sha256 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain64-sha256.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-xts-plain64 --key-size 512 --hash sha256 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain64-sha256.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-256-xts-plain64-sha256.img qiotest-145-aes-256-xts-plain64-sha256
 # Write test pattern 0xa7
@@ -1806,7 +1806,7 @@ unlink TEST_DIR/luks-aes-256-xts-plain64-sha256.img
 # Create image
 truncate TEST_DIR/luks-aes-256-xts-plain64-sha384.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-xts-plain64 --key-size 512 --hash sha384 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain64-sha384.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-xts-plain64 --key-size 512 --hash sha384 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain64-sha384.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-256-xts-plain64-sha384.img qiotest-145-aes-256-xts-plain64-sha384
 # Write test pattern 0xa7
@@ -1926,7 +1926,7 @@ unlink TEST_DIR/luks-aes-256-xts-plain64-sha384.img
 # Create image
 truncate TEST_DIR/luks-aes-256-xts-plain64-sha512.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-xts-plain64 --key-size 512 --hash sha512 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain64-sha512.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-xts-plain64 --key-size 512 --hash sha512 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain64-sha512.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-256-xts-plain64-sha512.img qiotest-145-aes-256-xts-plain64-sha512
 # Write test pattern 0xa7
@@ -2046,7 +2046,7 @@ unlink TEST_DIR/luks-aes-256-xts-plain64-sha512.img
 # Create image
 truncate TEST_DIR/luks-aes-256-xts-plain64-ripemd160.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-xts-plain64 --key-size 512 --hash ripemd160 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain64-ripemd160.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-xts-plain64 --key-size 512 --hash ripemd160 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain64-ripemd160.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-256-xts-plain64-ripemd160.img qiotest-145-aes-256-xts-plain64-ripemd160
 # Write test pattern 0xa7
@@ -2166,7 +2166,7 @@ unlink TEST_DIR/luks-aes-256-xts-plain64-ripemd160.img
 # Create image
 truncate TEST_DIR/luks-aes-256-xts-plain-sha1-pwslot3.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-xts-plain --key-size 512 --hash sha1 --key-slot 3 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain-sha1-pwslot3.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-xts-plain --key-size 512 --hash sha1 --key-slot 3 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain-sha1-pwslot3.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-256-xts-plain-sha1-pwslot3.img qiotest-145-aes-256-xts-plain-sha1-pwslot3
 # Write test pattern 0xa7
@@ -2226,7 +2226,7 @@ unlink TEST_DIR/luks-aes-256-xts-plain-sha1-pwslot3.img
 # Create image
 truncate TEST_DIR/luks-aes-256-xts-plain-sha1-pwallslots.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-xts-plain --key-size 512 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain-sha1-pwallslots.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-xts-plain --key-size 512 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-xts-plain-sha1-pwallslots.img
 # Add password slot 1
 sudo cryptsetup -q -v luksAddKey TEST_DIR/luks-aes-256-xts-plain-sha1-pwallslots.img --key-slot 1 --key-file - --iter-time 10 TEST_DIR/passwd.txt
 # Add password slot 2
@@ -2360,7 +2360,7 @@ unlink TEST_DIR/luks-aes-256-xts-plain-sha1-pwallslots.img
 # Create image
 truncate TEST_DIR/luks-aes-256-cbc-essiv-auto-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-cbc-essiv:sha256 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-cbc-essiv-auto-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-cbc-essiv:sha256 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-cbc-essiv-auto-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-256-cbc-essiv-auto-sha1.img qiotest-145-aes-256-cbc-essiv-auto-sha1
 # Write test pattern 0xa7
@@ -2480,7 +2480,7 @@ unlink TEST_DIR/luks-aes-256-cbc-essiv-auto-sha1.img
 # Create image
 truncate TEST_DIR/luks-aes-256-cbc-plain64-sha256-sha1.img --size 4194304MB
 # Format image
-sudo cryptsetup -q -v luksFormat --cipher aes-cbc-plain64:sha256 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-cbc-plain64-sha256-sha1.img
+sudo cryptsetup -q -v luksFormat --type luks1 --cipher aes-cbc-plain64:sha256 --key-size 256 --hash sha1 --key-slot 0 --key-file - --iter-time 10 TEST_DIR/luks-aes-256-cbc-plain64-sha256-sha1.img
 # Open dev
 sudo cryptsetup -q -v luksOpen TEST_DIR/luks-aes-256-cbc-plain64-sha256-sha1.img qiotest-145-aes-256-cbc-plain64-sha256-sha1
 # Write test pattern 0xa7
diff --git a/tests/qemu-iotests/162 b/tests/qemu-iotests/162
index 2d719afbed..c0053ed975 100755
--- a/tests/qemu-iotests/162
+++ b/tests/qemu-iotests/162
@@ -46,7 +46,7 @@ echo '=== NBD ==='
 # NBD expects all of its arguments to be strings
 
 # So this should not crash
-$QEMU_IMG info 'json:{"driver": "nbd", "host": 42}'
+$QEMU_IMG info 'json:{"driver": "nbd", "host": -1}'
 
 # And this should not treat @port as if it had not been specified
 # (We need to set up a server here, because the error message for "Connection
diff --git a/tests/qemu-iotests/162.out b/tests/qemu-iotests/162.out
index 3c5be2c569..5a00d36d17 100644
--- a/tests/qemu-iotests/162.out
+++ b/tests/qemu-iotests/162.out
@@ -1,7 +1,7 @@
 QA output created by 162
 
 === NBD ===
-qemu-img: Could not open 'json:{"driver": "nbd", "host": 42}': Failed to connect socket: Invalid argument
+qemu-img: Could not open 'json:{"driver": "nbd", "host": -1}': address resolution failed for -1:10809: Name or service not known
 image: nbd://localhost:PORT
 image: nbd+unix://?socket=42
 
diff --git a/tests/qemu-iotests/227.out b/tests/qemu-iotests/227.out
index 3dd3ca5708..9c09ee3917 100644
--- a/tests/qemu-iotests/227.out
+++ b/tests/qemu-iotests/227.out
@@ -15,6 +15,8 @@ Testing: -drive driver=null-co,read-zeroes=on,if=virtio
         {
             "device": "virtio0",
             "stats": {
+                "unmap_operations": 0,
+                "unmap_merged": 0,
                 "flush_total_time_ns": 0,
                 "wr_highest_offset": 0,
                 "wr_total_time_ns": 0,
@@ -24,13 +26,17 @@ Testing: -drive driver=null-co,read-zeroes=on,if=virtio
                 "wr_bytes": 0,
                 "timed_stats": [
                 ],
+                "failed_unmap_operations": 0,
                 "failed_flush_operations": 0,
                 "account_invalid": true,
                 "rd_total_time_ns": 0,
+                "invalid_unmap_operations": 0,
                 "flush_operations": 0,
                 "wr_operations": 0,
+                "unmap_bytes": 0,
                 "rd_merged": 0,
                 "rd_bytes": 0,
+                "unmap_total_time_ns": 0,
                 "invalid_flush_operations": 0,
                 "account_failed": true,
                 "rd_operations": 0,
@@ -74,6 +80,8 @@ Testing: -drive driver=null-co,if=none
         {
             "device": "none0",
             "stats": {
+                "unmap_operations": 0,
+                "unmap_merged": 0,
                 "flush_total_time_ns": 0,
                 "wr_highest_offset": 0,
                 "wr_total_time_ns": 0,
@@ -83,13 +91,17 @@ Testing: -drive driver=null-co,if=none
                 "wr_bytes": 0,
                 "timed_stats": [
                 ],
+                "failed_unmap_operations": 0,
                 "failed_flush_operations": 0,
                 "account_invalid": true,
                 "rd_total_time_ns": 0,
+                "invalid_unmap_operations": 0,
                 "flush_operations": 0,
                 "wr_operations": 0,
+                "unmap_bytes": 0,
                 "rd_merged": 0,
                 "rd_bytes": 0,
+                "unmap_total_time_ns": 0,
                 "invalid_flush_operations": 0,
                 "account_failed": true,
                 "rd_operations": 0,
@@ -163,6 +175,8 @@ Testing: -blockdev driver=null-co,read-zeroes=on,node-name=null -device virtio-b
         {
             "device": "",
             "stats": {
+                "unmap_operations": 0,
+                "unmap_merged": 0,
                 "flush_total_time_ns": 0,
                 "wr_highest_offset": 0,
                 "wr_total_time_ns": 0,
@@ -172,13 +186,17 @@ Testing: -blockdev driver=null-co,read-zeroes=on,node-name=null -device virtio-b
                 "wr_bytes": 0,
                 "timed_stats": [
                 ],
+                "failed_unmap_operations": 0,
                 "failed_flush_operations": 0,
                 "account_invalid": false,
                 "rd_total_time_ns": 0,
+                "invalid_unmap_operations": 0,
                 "flush_operations": 0,
                 "wr_operations": 0,
+                "unmap_bytes": 0,
                 "rd_merged": 0,
                 "rd_bytes": 0,
+                "unmap_total_time_ns": 0,
                 "invalid_flush_operations": 0,
                 "account_failed": false,
                 "rd_operations": 0,
diff --git a/tests/qemu-iotests/257 b/tests/qemu-iotests/257
index 4a636d8ab2..a9828251cf 100755
--- a/tests/qemu-iotests/257
+++ b/tests/qemu-iotests/257
@@ -148,11 +148,6 @@ class Drive:
         self.fmt = None
         self.size = None
         self.node = None
-        self.device = None
-
-    @property
-    def name(self):
-        return self.node or self.device
 
     def img_create(self, fmt, size):
         self.fmt = fmt
@@ -188,25 +183,6 @@ class Drive:
         self.size = size
         self.node = name
 
-def query_bitmaps(vm):
-    res = vm.qmp("query-block")
-    return {"bitmaps": {device['device'] or device['qdev']:
-                        device.get('dirty-bitmaps', []) for
-                        device in res['return']}}
-
-def get_bitmap(bitmaps, drivename, name, recording=None):
-    """
-    get a specific bitmap from the object returned by query_bitmaps.
-    :param recording: If specified, filter results by the specified value.
-    """
-    for bitmap in bitmaps['bitmaps'][drivename]:
-        if bitmap.get('name', '') == name:
-            if recording is None:
-                return bitmap
-            elif bitmap.get('recording') == recording:
-                return bitmap
-    return None
-
 def blockdev_backup(vm, device, target, sync, **kwargs):
     # Strip any arguments explicitly nulled by the caller:
     kwargs = {key: val for key, val in kwargs.items() if val is not None}
@@ -214,13 +190,14 @@ def blockdev_backup(vm, device, target, sync, **kwargs):
                         device=device,
                         target=target,
                         sync=sync,
+                        filter_node_name='backup-top',
                         **kwargs)
     return result
 
 def blockdev_backup_mktarget(drive, target_id, filepath, sync, **kwargs):
     target_drive = Drive(filepath, vm=drive.vm)
     target_drive.create_target(target_id, drive.fmt, drive.size)
-    blockdev_backup(drive.vm, drive.name, target_id, sync, **kwargs)
+    blockdev_backup(drive.vm, drive.node, target_id, sync, **kwargs)
 
 def reference_backup(drive, n, filepath):
     log("--- Reference Backup #{:d} ---\n".format(n))
@@ -240,7 +217,7 @@ def backup(drive, n, filepath, sync, **kwargs):
                              job_id=job_id, **kwargs)
     return job_id
 
-def perform_writes(drive, n):
+def perform_writes(drive, n, filter_node_name=None):
     log("--- Write #{:d} ---\n".format(n))
     for pattern in GROUPS[n].patterns:
         cmd = "write -P{:s} 0x{:07x} 0x{:x}".format(
@@ -248,9 +225,9 @@ def perform_writes(drive, n):
             pattern.offset,
             pattern.size)
         log(cmd)
-        log(drive.vm.hmp_qemu_io(drive.name, cmd))
-    bitmaps = query_bitmaps(drive.vm)
-    log(bitmaps, indent=2)
+        log(drive.vm.hmp_qemu_io(filter_node_name or drive.node, cmd))
+    bitmaps = drive.vm.query_bitmaps()
+    log({'bitmaps': bitmaps}, indent=2)
     log('')
     return bitmaps
 
@@ -343,26 +320,19 @@ def test_bitmap_sync(bsync_mode, msync_mode='bitmap', failure=None):
                 }]
             }
 
+        drive0.node = 'drive0'
         vm.qmp_log('blockdev-add',
                    filters=[iotests.filter_qmp_testfiles],
-                   node_name="drive0",
+                   node_name=drive0.node,
                    driver=drive0.fmt,
                    file=file_config)
-        drive0.node = 'drive0'
-        drive0.device = 'device0'
-        # Use share-rw to allow writes directly to the node;
-        # The anonymous block-backend for this configuration prevents us
-        # from using HMP's qemu-io commands to address the device.
-        vm.qmp_log("device_add", id=drive0.device,
-                   drive=drive0.name, driver="scsi-hd",
-                   share_rw=True)
         log('')
 
         # 0 - Writes and Reference Backup
         perform_writes(drive0, 0)
         reference_backup(drive0, 0, fbackup0)
         log('--- Add Bitmap ---\n')
-        vm.qmp_log("block-dirty-bitmap-add", node=drive0.name,
+        vm.qmp_log("block-dirty-bitmap-add", node=drive0.node,
                    name="bitmap0", granularity=GRANULARITY)
         log('')
         ebitmap = EmulatedBitmap()
@@ -370,14 +340,14 @@ def test_bitmap_sync(bsync_mode, msync_mode='bitmap', failure=None):
         # 1 - Writes and Reference Backup
         bitmaps = perform_writes(drive0, 1)
         ebitmap.dirty_group(1)
-        bitmap = get_bitmap(bitmaps, drive0.device, 'bitmap0')
+        bitmap = vm.get_bitmap(drive0.node, 'bitmap0', bitmaps=bitmaps)
         ebitmap.compare(bitmap)
         reference_backup(drive0, 1, fbackup1)
 
         # 1 - Test Backup (w/ Optional induced failure)
         if failure == 'intermediate':
             # Activate blkdebug induced failure for second-to-next read
-            log(vm.hmp_qemu_io(drive0.name, 'flush'))
+            log(vm.hmp_qemu_io(drive0.node, 'flush'))
             log('')
         job = backup(drive0, 1, bsync1, msync_mode,
                      bitmap="bitmap0", bitmap_mode=bsync_mode)
@@ -386,14 +356,15 @@ def test_bitmap_sync(bsync_mode, msync_mode='bitmap', failure=None):
             """Issue writes while the job is open to test bitmap divergence."""
             # Note: when `failure` is 'intermediate', this isn't called.
             log('')
-            bitmaps = perform_writes(drive0, 2)
+            bitmaps = perform_writes(drive0, 2, filter_node_name='backup-top')
             # Named bitmap (static, should be unchanged)
-            ebitmap.compare(get_bitmap(bitmaps, drive0.device, 'bitmap0'))
+            ebitmap.compare(vm.get_bitmap(drive0.node, 'bitmap0',
+                                          bitmaps=bitmaps))
             # Anonymous bitmap (dynamic, shows new writes)
             anonymous = EmulatedBitmap()
             anonymous.dirty_group(2)
-            anonymous.compare(get_bitmap(bitmaps, drive0.device, '',
-                                         recording=True))
+            anonymous.compare(vm.get_bitmap(drive0.node, '', recording=True,
+                                            bitmaps=bitmaps))
 
             # Simulate the order in which this will happen:
             # group 1 gets cleared first, then group two gets written.
@@ -405,8 +376,8 @@ def test_bitmap_sync(bsync_mode, msync_mode='bitmap', failure=None):
         vm.run_job(job, auto_dismiss=True, auto_finalize=False,
                    pre_finalize=_callback,
                    cancel=(failure == 'simulated'))
-        bitmaps = query_bitmaps(vm)
-        log(bitmaps, indent=2)
+        bitmaps = vm.query_bitmaps()
+        log({'bitmaps': bitmaps}, indent=2)
         log('')
 
         if bsync_mode == 'always' and failure == 'intermediate':
@@ -423,29 +394,30 @@ def test_bitmap_sync(bsync_mode, msync_mode='bitmap', failure=None):
                 ebitmap.clear()
                 ebitmap.dirty_bits(range(fail_bit, SIZE // GRANULARITY))
 
-        ebitmap.compare(get_bitmap(bitmaps, drive0.device, 'bitmap0'))
+        ebitmap.compare(vm.get_bitmap(drive0.node, 'bitmap0', bitmaps=bitmaps))
 
         # 2 - Writes and Reference Backup
         bitmaps = perform_writes(drive0, 3)
         ebitmap.dirty_group(3)
-        ebitmap.compare(get_bitmap(bitmaps, drive0.device, 'bitmap0'))
+        ebitmap.compare(vm.get_bitmap(drive0.node, 'bitmap0', bitmaps=bitmaps))
         reference_backup(drive0, 2, fbackup2)
 
         # 2 - Bitmap Backup (In failure modes, this is a recovery.)
         job = backup(drive0, 2, bsync2, "bitmap",
                      bitmap="bitmap0", bitmap_mode=bsync_mode)
         vm.run_job(job, auto_dismiss=True, auto_finalize=False)
-        bitmaps = query_bitmaps(vm)
-        log(bitmaps, indent=2)
+        bitmaps = vm.query_bitmaps()
+        log({'bitmaps': bitmaps}, indent=2)
         log('')
         if bsync_mode != 'never':
             ebitmap.clear()
-        ebitmap.compare(get_bitmap(bitmaps, drive0.device, 'bitmap0'))
+        ebitmap.compare(vm.get_bitmap(drive0.node, 'bitmap0', bitmaps=bitmaps))
 
         log('--- Cleanup ---\n')
         vm.qmp_log("block-dirty-bitmap-remove",
-                   node=drive0.name, name="bitmap0")
-        log(query_bitmaps(vm), indent=2)
+                   node=drive0.node, name="bitmap0")
+        bitmaps = vm.query_bitmaps()
+        log({'bitmaps': bitmaps}, indent=2)
         vm.shutdown()
         log('')
 
@@ -484,22 +456,19 @@ def test_backup_api():
             'filename': drive0.path
         }
 
+        drive0.node = 'drive0'
         vm.qmp_log('blockdev-add',
                    filters=[iotests.filter_qmp_testfiles],
-                   node_name="drive0",
+                   node_name=drive0.node,
                    driver=drive0.fmt,
                    file=file_config)
-        drive0.node = 'drive0'
-        drive0.device = 'device0'
-        vm.qmp_log("device_add", id=drive0.device,
-                   drive=drive0.name, driver="scsi-hd")
         log('')
 
         target0 = Drive(backup_path, vm=vm)
         target0.create_target("backup_target", drive0.fmt, drive0.size)
         log('')
 
-        vm.qmp_log("block-dirty-bitmap-add", node=drive0.name,
+        vm.qmp_log("block-dirty-bitmap-add", node=drive0.node,
                    name="bitmap0", granularity=GRANULARITY)
         log('')
 
@@ -538,7 +507,7 @@ def test_backup_api():
             log("-- Sync mode {:s} tests --\n".format(sync_mode))
             for bitmap in (None, 'bitmap404', 'bitmap0'):
                 for policy in error_cases[sync_mode][bitmap]:
-                    blockdev_backup(drive0.vm, drive0.name, "backup_target",
+                    blockdev_backup(drive0.vm, drive0.node, "backup_target",
                                     sync_mode, job_id='api_job',
                                     bitmap=bitmap, bitmap_mode=policy)
                     log('')
diff --git a/tests/qemu-iotests/257.out b/tests/qemu-iotests/257.out
index 84b79d7bfe..64dd460055 100644
--- a/tests/qemu-iotests/257.out
+++ b/tests/qemu-iotests/257.out
@@ -5,8 +5,6 @@
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -19,9 +17,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -34,7 +30,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -55,7 +51,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -82,7 +78,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -96,7 +92,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -111,7 +107,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -153,7 +149,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 393216, "offset": 393216, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_CANCELLED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 655360,
@@ -182,7 +178,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 983040,
@@ -209,7 +205,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -223,7 +219,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -231,7 +227,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"data": {"device": "backup_2", "len": 983040, "offset": 983040, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 983040,
@@ -253,9 +249,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -271,8 +265,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "blkdebug", "image": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "inject-error": [{"errno": 5, "event": "read_aio", "immediately": false, "once": true, "state": 3}], "set-state": [{"event": "flush_to_disk", "new-state": 2, "state": 1}, {"event": "read_aio", "new-state": 3, "state": 2}]}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -285,9 +277,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -300,7 +290,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -321,7 +311,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -348,7 +338,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -364,13 +354,13 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
 {"return": {}}
 {"data": {"action": "report", "device": "backup_1", "operation": "read"}, "event": "BLOCK_JOB_ERROR", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {"data": {"device": "backup_1", "error": "Input/output error", "len": 393216, "offset": 65536, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -399,7 +389,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 917504,
@@ -426,7 +416,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -440,7 +430,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -448,7 +438,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"data": {"device": "backup_2", "len": 917504, "offset": 917504, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 917504,
@@ -470,9 +460,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -488,8 +476,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -502,9 +488,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -517,7 +501,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -538,7 +522,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -565,7 +549,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -579,7 +563,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -594,7 +578,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -636,7 +620,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 393216, "offset": 393216, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 655360,
@@ -665,7 +649,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 983040,
@@ -692,7 +676,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -706,7 +690,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -714,7 +698,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"data": {"device": "backup_2", "len": 983040, "offset": 983040, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 983040,
@@ -736,9 +720,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -754,8 +736,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -768,9 +748,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -783,7 +761,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -804,7 +782,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -831,7 +809,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -845,7 +823,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -860,7 +838,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -902,7 +880,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 393216, "offset": 393216, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_CANCELLED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 655360,
@@ -931,7 +909,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 983040,
@@ -958,7 +936,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -972,7 +950,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -980,7 +958,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"data": {"device": "backup_2", "len": 983040, "offset": 983040, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -1002,9 +980,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -1020,8 +996,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "blkdebug", "image": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "inject-error": [{"errno": 5, "event": "read_aio", "immediately": false, "once": true, "state": 3}], "set-state": [{"event": "flush_to_disk", "new-state": 2, "state": 1}, {"event": "read_aio", "new-state": 3, "state": 2}]}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -1034,9 +1008,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -1049,7 +1021,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -1070,7 +1042,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -1097,7 +1069,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -1113,13 +1085,13 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
 {"return": {}}
 {"data": {"action": "report", "device": "backup_1", "operation": "read"}, "event": "BLOCK_JOB_ERROR", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {"data": {"device": "backup_1", "error": "Input/output error", "len": 393216, "offset": 65536, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -1148,7 +1120,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 917504,
@@ -1175,7 +1147,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -1189,7 +1161,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -1197,7 +1169,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"data": {"device": "backup_2", "len": 917504, "offset": 917504, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -1219,9 +1191,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -1237,8 +1207,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -1251,9 +1219,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -1266,7 +1232,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -1287,7 +1253,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -1314,7 +1280,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -1328,7 +1294,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -1343,7 +1309,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -1385,7 +1351,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 393216, "offset": 393216, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 458752,
@@ -1414,7 +1380,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 786432,
@@ -1441,7 +1407,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -1455,7 +1421,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -1463,7 +1429,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"data": {"device": "backup_2", "len": 786432, "offset": 786432, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -1485,9 +1451,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -1503,8 +1467,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -1517,9 +1479,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -1532,7 +1492,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -1553,7 +1513,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -1580,7 +1540,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -1594,7 +1554,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -1609,7 +1569,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -1651,7 +1611,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 393216, "offset": 393216, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_CANCELLED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 458752,
@@ -1680,7 +1640,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 786432,
@@ -1707,7 +1667,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -1721,7 +1681,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -1729,7 +1689,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"data": {"device": "backup_2", "len": 786432, "offset": 786432, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -1751,9 +1711,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -1769,8 +1727,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "blkdebug", "image": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "inject-error": [{"errno": 5, "event": "read_aio", "immediately": false, "once": true, "state": 3}], "set-state": [{"event": "flush_to_disk", "new-state": 2, "state": 1}, {"event": "read_aio", "new-state": 3, "state": 2}]}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -1783,9 +1739,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -1798,7 +1752,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -1819,7 +1773,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -1846,7 +1800,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -1862,13 +1816,13 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
 {"return": {}}
 {"data": {"action": "report", "device": "backup_1", "operation": "read"}, "event": "BLOCK_JOB_ERROR", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {"data": {"device": "backup_1", "error": "Input/output error", "len": 393216, "offset": 65536, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 327680,
@@ -1897,7 +1851,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 851968,
@@ -1924,7 +1878,7 @@ expecting 13 dirty sectors; have 13. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -1938,7 +1892,7 @@ expecting 13 dirty sectors; have 13. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -1946,7 +1900,7 @@ expecting 13 dirty sectors; have 13. OK!
 {"data": {"device": "backup_2", "len": 851968, "offset": 851968, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -1968,9 +1922,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -1986,8 +1938,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -2000,9 +1950,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -2015,7 +1963,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -2036,7 +1984,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -2063,7 +2011,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -2077,7 +2025,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "bitmap", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -2092,7 +2040,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -2134,7 +2082,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 393216, "offset": 393216, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 458752,
@@ -2163,7 +2111,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 786432,
@@ -2190,7 +2138,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -2204,7 +2152,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -2212,7 +2160,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"data": {"device": "backup_2", "len": 786432, "offset": 786432, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -2234,9 +2182,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -2252,8 +2198,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -2266,9 +2210,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -2281,7 +2223,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -2302,7 +2244,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -2329,7 +2271,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -2343,7 +2285,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_1", "sync": "full", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "full", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -2358,7 +2300,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -2400,7 +2342,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_CANCELLED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 655360,
@@ -2429,7 +2371,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 983040,
@@ -2456,7 +2398,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -2470,7 +2412,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -2478,7 +2420,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"data": {"device": "backup_2", "len": 983040, "offset": 983040, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -2500,9 +2442,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -2518,8 +2458,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "blkdebug", "image": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "inject-error": [{"errno": 5, "event": "read_aio", "immediately": false, "once": true, "state": 3}], "set-state": [{"event": "flush_to_disk", "new-state": 2, "state": 1}, {"event": "read_aio", "new-state": 3, "state": 2}]}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -2532,9 +2470,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -2547,7 +2483,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -2568,7 +2504,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -2595,7 +2531,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -2611,13 +2547,13 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_1", "sync": "full", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "full", "target": "backup_target_1"}}
 {"return": {}}
 {"data": {"action": "report", "device": "backup_1", "operation": "read"}, "event": "BLOCK_JOB_ERROR", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {"data": {"device": "backup_1", "error": "Input/output error", "len": 67108864, "offset": 983040, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -2646,7 +2582,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 917504,
@@ -2673,7 +2609,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -2687,7 +2623,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -2695,7 +2631,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"data": {"device": "backup_2", "len": 917504, "offset": 917504, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -2717,9 +2653,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -2735,8 +2669,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -2749,9 +2681,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -2764,7 +2694,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -2785,7 +2715,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -2812,7 +2742,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -2826,7 +2756,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_1", "sync": "full", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "full", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -2841,7 +2771,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -2883,7 +2813,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 458752,
@@ -2912,7 +2842,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 786432,
@@ -2939,7 +2869,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -2953,7 +2883,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -2961,7 +2891,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"data": {"device": "backup_2", "len": 786432, "offset": 786432, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -2983,9 +2913,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -3001,8 +2929,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -3015,9 +2941,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -3030,7 +2954,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -3051,7 +2975,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -3078,7 +3002,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -3092,7 +3016,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_1", "sync": "full", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "full", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -3107,7 +3031,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -3149,7 +3073,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_CANCELLED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 458752,
@@ -3178,7 +3102,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 786432,
@@ -3205,7 +3129,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -3219,7 +3143,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -3227,7 +3151,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"data": {"device": "backup_2", "len": 786432, "offset": 786432, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -3249,9 +3173,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -3267,8 +3189,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "blkdebug", "image": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "inject-error": [{"errno": 5, "event": "read_aio", "immediately": false, "once": true, "state": 3}], "set-state": [{"event": "flush_to_disk", "new-state": 2, "state": 1}, {"event": "read_aio", "new-state": 3, "state": 2}]}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -3281,9 +3201,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -3296,7 +3214,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -3317,7 +3235,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -3344,7 +3262,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -3360,13 +3278,13 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_1", "sync": "full", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "full", "target": "backup_target_1"}}
 {"return": {}}
 {"data": {"action": "report", "device": "backup_1", "operation": "read"}, "event": "BLOCK_JOB_ERROR", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {"data": {"device": "backup_1", "error": "Input/output error", "len": 67108864, "offset": 983040, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 66125824,
@@ -3395,7 +3313,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 66453504,
@@ -3422,7 +3340,7 @@ expecting 1014 dirty sectors; have 1014. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -3436,7 +3354,7 @@ expecting 1014 dirty sectors; have 1014. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -3444,7 +3362,7 @@ expecting 1014 dirty sectors; have 1014. OK!
 {"data": {"device": "backup_2", "len": 66453504, "offset": 66453504, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -3466,9 +3384,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -3484,8 +3400,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -3498,9 +3412,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -3513,7 +3425,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -3534,7 +3446,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -3561,7 +3473,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -3575,7 +3487,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_1", "sync": "full", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "full", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -3590,7 +3502,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -3632,7 +3544,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 458752,
@@ -3661,7 +3573,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 786432,
@@ -3688,7 +3600,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -3702,7 +3614,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -3710,7 +3622,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"data": {"device": "backup_2", "len": 786432, "offset": 786432, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -3732,9 +3644,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -3750,8 +3660,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -3764,9 +3672,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -3779,7 +3685,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -3800,7 +3706,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -3827,7 +3733,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -3841,7 +3747,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_1", "sync": "top", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "top", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -3856,7 +3762,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -3898,7 +3804,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 458752, "offset": 458752, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_CANCELLED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 655360,
@@ -3927,7 +3833,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 983040,
@@ -3954,7 +3860,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -3968,7 +3874,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -3976,7 +3882,7 @@ expecting 15 dirty sectors; have 15. OK!
 {"data": {"device": "backup_2", "len": 983040, "offset": 983040, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -3998,9 +3904,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -4016,8 +3920,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "blkdebug", "image": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "inject-error": [{"errno": 5, "event": "read_aio", "immediately": false, "once": true, "state": 3}], "set-state": [{"event": "flush_to_disk", "new-state": 2, "state": 1}, {"event": "read_aio", "new-state": 3, "state": 2}]}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -4030,9 +3932,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -4045,7 +3945,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -4066,7 +3966,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -4093,7 +3993,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -4109,13 +4009,13 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_1", "sync": "top", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "top", "target": "backup_target_1"}}
 {"return": {}}
 {"data": {"action": "report", "device": "backup_1", "operation": "read"}, "event": "BLOCK_JOB_ERROR", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {"data": {"device": "backup_1", "error": "Input/output error", "len": 458752, "offset": 65536, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -4144,7 +4044,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 917504,
@@ -4171,7 +4071,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -4185,7 +4085,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -4193,7 +4093,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"data": {"device": "backup_2", "len": 917504, "offset": 917504, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -4215,9 +4115,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -4233,8 +4131,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -4247,9 +4143,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -4262,7 +4156,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -4283,7 +4177,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -4310,7 +4204,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -4324,7 +4218,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_1", "sync": "top", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "top", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -4339,7 +4233,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -4381,7 +4275,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 458752, "offset": 458752, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 458752,
@@ -4410,7 +4304,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 786432,
@@ -4437,7 +4331,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -4451,7 +4345,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -4459,7 +4353,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"data": {"device": "backup_2", "len": 786432, "offset": 786432, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -4481,9 +4375,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -4499,8 +4391,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -4513,9 +4403,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -4528,7 +4416,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -4549,7 +4437,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -4576,7 +4464,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -4590,7 +4478,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_1", "sync": "top", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "top", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -4605,7 +4493,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -4647,7 +4535,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 458752, "offset": 458752, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_CANCELLED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 458752,
@@ -4676,7 +4564,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 786432,
@@ -4703,7 +4591,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -4717,7 +4605,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -4725,7 +4613,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"data": {"device": "backup_2", "len": 786432, "offset": 786432, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -4747,9 +4635,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -4765,8 +4651,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "blkdebug", "image": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "inject-error": [{"errno": 5, "event": "read_aio", "immediately": false, "once": true, "state": 3}], "set-state": [{"event": "flush_to_disk", "new-state": 2, "state": 1}, {"event": "read_aio", "new-state": 3, "state": 2}]}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -4779,9 +4663,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -4794,7 +4676,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -4815,7 +4697,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -4842,7 +4724,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -4858,13 +4740,13 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_1", "sync": "top", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "top", "target": "backup_target_1"}}
 {"return": {}}
 {"data": {"action": "report", "device": "backup_1", "operation": "read"}, "event": "BLOCK_JOB_ERROR", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {"data": {"device": "backup_1", "error": "Input/output error", "len": 458752, "offset": 65536, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -4893,7 +4775,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 917504,
@@ -4920,7 +4802,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -4934,7 +4816,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -4942,7 +4824,7 @@ expecting 14 dirty sectors; have 14. OK!
 {"data": {"device": "backup_2", "len": 917504, "offset": 917504, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -4964,9 +4846,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -4982,8 +4862,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0", "share-rw": true}}
-{"return": {}}
 
 --- Write #0 ---
 
@@ -4996,9 +4874,7 @@ write -P0x6f 0x2000000 0x10000
 write -P0x76 0x3ff0000 0x10000
 {"return": ""}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Reference Backup #0 ---
@@ -5011,7 +4887,7 @@ write -P0x76 0x3ff0000 0x10000
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_0", "sync": "full", "target": "ref_target_0"}}
 {"return": {}}
 {"data": {"device": "ref_backup_0", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -5032,7 +4908,7 @@ write -P0x69 0x3fe0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 393216,
@@ -5059,7 +4935,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_1", "sync": "full", "target": "ref_target_1"}}
 {"return": {}}
 {"data": {"device": "ref_backup_1", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -5073,7 +4949,7 @@ expecting 6 dirty sectors; have 6. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_1", "sync": "top", "target": "backup_target_1"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_1", "sync": "top", "target": "backup_target_1"}}
 {"return": {}}
 
 --- Write #2 ---
@@ -5088,7 +4964,7 @@ write -P0x67 0x3fe0000 0x20000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -5130,7 +5006,7 @@ expecting 7 dirty sectors; have 7. OK!
 {"data": {"device": "backup_1", "len": 458752, "offset": 458752, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 458752,
@@ -5159,7 +5035,7 @@ write -P0xdd 0x3fc0000 0x10000
 {"return": ""}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 786432,
@@ -5186,7 +5062,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "ref_backup_2", "sync": "full", "target": "ref_target_2"}}
 {"return": {}}
 {"data": {"device": "ref_backup_2", "len": 67108864, "offset": 67108864, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 
@@ -5200,7 +5076,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"execute": "job-dismiss", "arguments": {"id": "bdc-fmt-job"}}
 {"return": {}}
 {}
-{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
+{"execute": "blockdev-backup", "arguments": {"auto-finalize": false, "bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "backup_2", "sync": "bitmap", "target": "backup_target_2"}}
 {"return": {}}
 {"execute": "job-finalize", "arguments": {"id": "backup_2"}}
 {"return": {}}
@@ -5208,7 +5084,7 @@ expecting 12 dirty sectors; have 12. OK!
 {"data": {"device": "backup_2", "len": 786432, "offset": 786432, "speed": 0, "type": "backup"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
 {
   "bitmaps": {
-    "device0": [
+    "drive0": [
       {
         "busy": false,
         "count": 0,
@@ -5230,9 +5106,7 @@ expecting 0 dirty sectors; have 0. OK!
 {"execute": "block-dirty-bitmap-remove", "arguments": {"name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
-  "bitmaps": {
-    "device0": []
-  }
+  "bitmaps": {}
 }
 
 --- Verification ---
@@ -5248,8 +5122,6 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 {"execute": "blockdev-add", "arguments": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-img"}, "node-name": "drive0"}}
 {"return": {}}
-{"execute": "device_add", "arguments": {"drive": "drive0", "driver": "scsi-hd", "id": "device0"}}
-{"return": {}}
 
 {}
 {"execute": "job-dismiss", "arguments": {"id": "bdc-file-job"}}
@@ -5267,155 +5139,155 @@ qemu_img compare "TEST_DIR/PID-img" "TEST_DIR/PID-fbackup2" ==> Identical, OK!
 
 -- Sync mode incremental tests --
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "on-success", "device": "drive0", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "must provide a valid bitmap name for 'incremental' sync mode"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "always", "device": "drive0", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "must provide a valid bitmap name for 'incremental' sync mode"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "must provide a valid bitmap name for 'incremental' sync mode"}}
 
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "must provide a valid bitmap name for 'incremental' sync mode"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "on-success", "device": "drive0", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "always", "device": "drive0", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap sync mode must be 'on-success' when using sync mode 'incremental'"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap sync mode must be 'on-success' when using sync mode 'incremental'"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "device": "drive0", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap sync mode must be 'on-success' when using sync mode 'incremental'"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "incremental", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap sync mode must be 'on-success' when using sync mode 'incremental'"}}
 
 -- Sync mode bitmap tests --
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "on-success", "device": "drive0", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "must provide a valid bitmap name for 'bitmap' sync mode"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "always", "device": "drive0", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "must provide a valid bitmap name for 'bitmap' sync mode"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "must provide a valid bitmap name for 'bitmap' sync mode"}}
 
-{"execute": "blockdev-backup", "arguments": {"device": "drive0", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "must provide a valid bitmap name for 'bitmap' sync mode"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "on-success", "device": "drive0", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "always", "device": "drive0", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "device": "drive0", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "device": "drive0", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "bitmap", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap sync mode must be given when providing a bitmap"}}
 
 -- Sync mode full tests --
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "on-success", "device": "drive0", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Cannot specify bitmap sync mode without a bitmap"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "always", "device": "drive0", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Cannot specify bitmap sync mode without a bitmap"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Cannot specify bitmap sync mode without a bitmap"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "on-success", "device": "drive0", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "always", "device": "drive0", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "device": "drive0", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap sync mode 'never' has no meaningful effect when combined with sync mode 'full'"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "device": "drive0", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "full", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap sync mode must be given when providing a bitmap"}}
 
 -- Sync mode top tests --
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "on-success", "device": "drive0", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Cannot specify bitmap sync mode without a bitmap"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "always", "device": "drive0", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Cannot specify bitmap sync mode without a bitmap"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Cannot specify bitmap sync mode without a bitmap"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "on-success", "device": "drive0", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "always", "device": "drive0", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "device": "drive0", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap sync mode 'never' has no meaningful effect when combined with sync mode 'top'"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "device": "drive0", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "top", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap sync mode must be given when providing a bitmap"}}
 
 -- Sync mode none tests --
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "on-success", "device": "drive0", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Cannot specify bitmap sync mode without a bitmap"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "always", "device": "drive0", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Cannot specify bitmap sync mode without a bitmap"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Cannot specify bitmap sync mode without a bitmap"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "on-success", "device": "drive0", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "always", "device": "drive0", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "device": "drive0", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap404", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap 'bitmap404' could not be found"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "on-success", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "sync mode 'none' does not produce meaningful bitmap outputs"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "always", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "sync mode 'none' does not produce meaningful bitmap outputs"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "bitmap-mode": "never", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "sync mode 'none' does not produce meaningful bitmap outputs"}}
 
-{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "device": "drive0", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
+{"execute": "blockdev-backup", "arguments": {"bitmap": "bitmap0", "device": "drive0", "filter-node-name": "backup-top", "job-id": "api_job", "sync": "none", "target": "backup_target"}}
 {"error": {"class": "GenericError", "desc": "Bitmap sync mode must be given when providing a bitmap"}}
 
diff --git a/tests/qemu-iotests/common.rc b/tests/qemu-iotests/common.rc
index e45cdfa66b..12b4751848 100644
--- a/tests/qemu-iotests/common.rc
+++ b/tests/qemu-iotests/common.rc
@@ -405,6 +405,23 @@ _check_test_img()
             $QEMU_IMG check "$@" -f $IMGFMT "$TEST_IMG" 2>&1
         fi
     ) | _filter_testdir | _filter_qemu_img_check
+
+    # return real qemu_img check status, to analyze in
+    # _check_test_img_ignore_leaks
+    return ${PIPESTATUS[0]}
+}
+
+_check_test_img_ignore_leaks()
+{
+    out=$(_check_test_img "$@")
+    status=$?
+    if [ $status = 3 ]; then
+        # This must correspond to success output in dump_human_image_check()
+        echo "No errors were found on the image."
+        return 0
+    fi
+    echo "$out"
+    return $status
 }
 
 _img_info()
diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 9fb5181c3d..3a8f378f90 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -641,6 +641,33 @@ class VM(qtest.QEMUQtestMachine):
                 return x
         return None
 
+    def query_bitmaps(self):
+        res = self.qmp("query-named-block-nodes")
+        return {device['node-name']: device['dirty-bitmaps']
+                for device in res['return'] if 'dirty-bitmaps' in device}
+
+    def get_bitmap(self, node_name, bitmap_name, recording=None, bitmaps=None):
+        """
+        get a specific bitmap from the object returned by query_bitmaps.
+        :param recording: If specified, filter results by the specified value.
+        :param bitmaps: If specified, use it instead of call query_bitmaps()
+        """
+        if bitmaps is None:
+            bitmaps = self.query_bitmaps()
+
+        for bitmap in bitmaps[node_name]:
+            if bitmap.get('name', '') == bitmap_name:
+                if recording is None:
+                    return bitmap
+                elif bitmap.get('recording') == recording:
+                    return bitmap
+        return None
+
+    def check_bitmap_status(self, node_name, bitmap_name, fields):
+        ret = self.get_bitmap(node_name, bitmap_name)
+
+        return fields.items() <= ret.items()
+
 
 index_re = re.compile(r'([^\[]+)\[([^\]]+)\]')
 
diff --git a/tests/test-vmstate.c b/tests/test-vmstate.c
index e80c4c6143..1e5be1d4ff 100644
--- a/tests/test-vmstate.c
+++ b/tests/test-vmstate.c
@@ -812,6 +812,423 @@ static void test_load_q(void)
     qemu_fclose(fload);
 }
 
+/* interval (key) */
+typedef struct TestGTreeInterval {
+    uint64_t low;
+    uint64_t high;
+} TestGTreeInterval;
+
+#define VMSTATE_INTERVAL                               \
+{                                                      \
+    .name = "interval",                                \
+    .version_id = 1,                                   \
+    .minimum_version_id = 1,                           \
+    .fields = (VMStateField[]) {                       \
+        VMSTATE_UINT64(low, TestGTreeInterval),        \
+        VMSTATE_UINT64(high, TestGTreeInterval),       \
+        VMSTATE_END_OF_LIST()                          \
+    }                                                  \
+}
+
+/* mapping (value) */
+typedef struct TestGTreeMapping {
+    uint64_t phys_addr;
+    uint32_t flags;
+} TestGTreeMapping;
+
+#define VMSTATE_MAPPING                               \
+{                                                     \
+    .name = "mapping",                                \
+    .version_id = 1,                                  \
+    .minimum_version_id = 1,                          \
+    .fields = (VMStateField[]) {                      \
+        VMSTATE_UINT64(phys_addr, TestGTreeMapping),  \
+        VMSTATE_UINT32(flags, TestGTreeMapping),      \
+        VMSTATE_END_OF_LIST()                         \
+    },                                                \
+}
+
+static const VMStateDescription vmstate_interval_mapping[2] = {
+    VMSTATE_MAPPING,   /* value */
+    VMSTATE_INTERVAL   /* key   */
+};
+
+typedef struct TestGTreeDomain {
+    int32_t  id;
+    GTree    *mappings;
+} TestGTreeDomain;
+
+typedef struct TestGTreeIOMMU {
+    int32_t  id;
+    GTree    *domains;
+} TestGTreeIOMMU;
+
+/* Interval comparison function */
+static gint interval_cmp(gconstpointer a, gconstpointer b, gpointer user_data)
+{
+    TestGTreeInterval *inta = (TestGTreeInterval *)a;
+    TestGTreeInterval *intb = (TestGTreeInterval *)b;
+
+    if (inta->high < intb->low) {
+        return -1;
+    } else if (intb->high < inta->low) {
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
+/* ID comparison function */
+static gint int_cmp(gconstpointer a, gconstpointer b, gpointer user_data)
+{
+    uint ua = GPOINTER_TO_UINT(a);
+    uint ub = GPOINTER_TO_UINT(b);
+    return (ua > ub) - (ua < ub);
+}
+
+static void destroy_domain(gpointer data)
+{
+    TestGTreeDomain *domain = (TestGTreeDomain *)data;
+
+    g_tree_destroy(domain->mappings);
+    g_free(domain);
+}
+
+static int domain_preload(void *opaque)
+{
+    TestGTreeDomain *domain = opaque;
+
+    domain->mappings = g_tree_new_full((GCompareDataFunc)interval_cmp,
+                                       NULL, g_free, g_free);
+    return 0;
+}
+
+static int iommu_preload(void *opaque)
+{
+    TestGTreeIOMMU *iommu = opaque;
+
+    iommu->domains = g_tree_new_full((GCompareDataFunc)int_cmp,
+                                     NULL, NULL, destroy_domain);
+    return 0;
+}
+
+static const VMStateDescription vmstate_domain = {
+    .name = "domain",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .pre_load = domain_preload,
+    .fields = (VMStateField[]) {
+        VMSTATE_INT32(id, TestGTreeDomain),
+        VMSTATE_GTREE_V(mappings, TestGTreeDomain, 1,
+                        vmstate_interval_mapping,
+                        TestGTreeInterval, TestGTreeMapping),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static const VMStateDescription vmstate_iommu = {
+    .name = "iommu",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .pre_load = iommu_preload,
+    .fields = (VMStateField[]) {
+        VMSTATE_INT32(id, TestGTreeIOMMU),
+        VMSTATE_GTREE_DIRECT_KEY_V(domains, TestGTreeIOMMU, 1,
+                                   &vmstate_domain, TestGTreeDomain),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+uint8_t first_domain_dump[] = {
+    /* id */
+    0x00, 0x0, 0x0, 0x6,
+    0x00, 0x0, 0x0, 0x2, /* 2 mappings */
+    0x1, /* start of a */
+    /* a */
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0xFF,
+    /* map_a */
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa0, 0x00,
+    0x00, 0x00, 0x00, 0x01,
+    0x1, /* start of b */
+    /* b */
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4F, 0xFF,
+    /* map_b */
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x02,
+    0x0, /* end of gtree */
+    QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
+};
+
+static TestGTreeDomain *create_first_domain(void)
+{
+    TestGTreeDomain *domain;
+    TestGTreeMapping *map_a, *map_b;
+    TestGTreeInterval *a, *b;
+
+    domain = g_malloc0(sizeof(TestGTreeDomain));
+    domain->id = 6;
+
+    a = g_malloc0(sizeof(TestGTreeInterval));
+    a->low = 0x1000;
+    a->high = 0x1FFF;
+
+    b = g_malloc0(sizeof(TestGTreeInterval));
+    b->low = 0x4000;
+    b->high = 0x4FFF;
+
+    map_a = g_malloc0(sizeof(TestGTreeMapping));
+    map_a->phys_addr = 0xa000;
+    map_a->flags = 1;
+
+    map_b = g_malloc0(sizeof(TestGTreeMapping));
+    map_b->phys_addr = 0xe0000;
+    map_b->flags = 2;
+
+    domain->mappings = g_tree_new_full((GCompareDataFunc)interval_cmp, NULL,
+                                        (GDestroyNotify)g_free,
+                                        (GDestroyNotify)g_free);
+    g_tree_insert(domain->mappings, a, map_a);
+    g_tree_insert(domain->mappings, b, map_b);
+    return domain;
+}
+
+static void test_gtree_save_domain(void)
+{
+    TestGTreeDomain *first_domain = create_first_domain();
+
+    save_vmstate(&vmstate_domain, first_domain);
+    compare_vmstate(first_domain_dump, sizeof(first_domain_dump));
+    destroy_domain(first_domain);
+}
+
+struct match_node_data {
+    GTree *tree;
+    gpointer key;
+    gpointer value;
+};
+
+struct tree_cmp_data {
+    GTree *tree1;
+    GTree *tree2;
+    GTraverseFunc match_node;
+};
+
+static gboolean match_interval_mapping_node(gpointer key,
+                                            gpointer value, gpointer data)
+{
+    TestGTreeMapping *map_a, *map_b;
+    TestGTreeInterval *a, *b;
+    struct match_node_data *d = (struct match_node_data *)data;
+    char *str = g_strdup_printf("dest");
+
+    g_free(str);
+    a = (TestGTreeInterval *)key;
+    b = (TestGTreeInterval *)d->key;
+
+    map_a = (TestGTreeMapping *)value;
+    map_b = (TestGTreeMapping *)d->value;
+
+    assert(a->low == b->low);
+    assert(a->high == b->high);
+    assert(map_a->phys_addr == map_b->phys_addr);
+    assert(map_a->flags == map_b->flags);
+    g_tree_remove(d->tree, key);
+    return true;
+}
+
+static gboolean diff_tree(gpointer key, gpointer value, gpointer data)
+{
+    struct tree_cmp_data *tp = (struct tree_cmp_data *)data;
+    struct match_node_data d = {tp->tree2, key, value};
+
+    g_tree_foreach(tp->tree2, tp->match_node, &d);
+    g_tree_remove(tp->tree1, key);
+    return false;
+}
+
+static void compare_trees(GTree *tree1, GTree *tree2,
+                          GTraverseFunc function)
+{
+    struct tree_cmp_data tp = {tree1, tree2, function};
+
+    g_tree_foreach(tree1, diff_tree, &tp);
+    assert(g_tree_nnodes(tree1) == 0);
+    assert(g_tree_nnodes(tree2) == 0);
+}
+
+static void diff_domain(TestGTreeDomain *d1, TestGTreeDomain *d2)
+{
+    assert(d1->id == d2->id);
+    compare_trees(d1->mappings, d2->mappings, match_interval_mapping_node);
+}
+
+static gboolean match_domain_node(gpointer key, gpointer value, gpointer data)
+{
+    uint64_t id1, id2;
+    TestGTreeDomain *d1, *d2;
+    struct match_node_data *d = (struct match_node_data *)data;
+
+    id1 = (uint64_t)(uintptr_t)key;
+    id2 = (uint64_t)(uintptr_t)d->key;
+    d1 = (TestGTreeDomain *)value;
+    d2 = (TestGTreeDomain *)d->value;
+    assert(id1 == id2);
+    diff_domain(d1, d2);
+    g_tree_remove(d->tree, key);
+    return true;
+}
+
+static void diff_iommu(TestGTreeIOMMU *iommu1, TestGTreeIOMMU *iommu2)
+{
+    assert(iommu1->id == iommu2->id);
+    compare_trees(iommu1->domains, iommu2->domains, match_domain_node);
+}
+
+static void test_gtree_load_domain(void)
+{
+    TestGTreeDomain *dest_domain = g_malloc0(sizeof(TestGTreeDomain));
+    TestGTreeDomain *orig_domain = create_first_domain();
+    QEMUFile *fload, *fsave;
+    char eof;
+
+    fsave = open_test_file(true);
+    qemu_put_buffer(fsave, first_domain_dump, sizeof(first_domain_dump));
+    g_assert(!qemu_file_get_error(fsave));
+    qemu_fclose(fsave);
+
+    fload = open_test_file(false);
+
+    vmstate_load_state(fload, &vmstate_domain, dest_domain, 1);
+    eof = qemu_get_byte(fload);
+    g_assert(!qemu_file_get_error(fload));
+    g_assert_cmpint(orig_domain->id, ==, dest_domain->id);
+    g_assert_cmpint(eof, ==, QEMU_VM_EOF);
+
+    diff_domain(orig_domain, dest_domain);
+    destroy_domain(orig_domain);
+    destroy_domain(dest_domain);
+    qemu_fclose(fload);
+}
+
+uint8_t iommu_dump[] = {
+    /* iommu id */
+    0x00, 0x0, 0x0, 0x7,
+    0x00, 0x0, 0x0, 0x2, /* 2 domains */
+    0x1,/* start of domain 5 */
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x0, 0x0, 0x5, /* key = 5 */
+        0x00, 0x0, 0x0, 0x5, /* domain1 id */
+        0x00, 0x0, 0x0, 0x1, /* 1 mapping */
+        0x1, /* start of mappings */
+            /* c */
+            0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x01, 0xFF, 0xFF, 0xFF,
+            /* map_c */
+            0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00,
+            0x00, 0x0, 0x0, 0x3,
+            0x0, /* end of domain1 mappings*/
+    0x1,/* start of domain 6 */
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x0, 0x0, 0x6, /* key = 6 */
+        0x00, 0x0, 0x0, 0x6, /* domain6 id */
+            0x00, 0x0, 0x0, 0x2, /* 2 mappings */
+            0x1, /* start of a */
+            /* a */
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0xFF,
+            /* map_a */
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa0, 0x00,
+            0x00, 0x00, 0x00, 0x01,
+            0x1, /* start of b */
+            /* b */
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4F, 0xFF,
+            /* map_b */
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x02,
+            0x0, /* end of domain6 mappings*/
+    0x0, /* end of domains */
+    QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
+};
+
+static TestGTreeIOMMU *create_iommu(void)
+{
+    TestGTreeIOMMU *iommu = g_malloc0(sizeof(TestGTreeIOMMU));
+    TestGTreeDomain *first_domain = create_first_domain();
+    TestGTreeDomain *second_domain;
+    TestGTreeMapping *map_c;
+    TestGTreeInterval *c;
+
+    iommu->id = 7;
+    iommu->domains = g_tree_new_full((GCompareDataFunc)int_cmp, NULL,
+                                     NULL,
+                                     destroy_domain);
+
+    second_domain = g_malloc0(sizeof(TestGTreeDomain));
+    second_domain->id = 5;
+    second_domain->mappings = g_tree_new_full((GCompareDataFunc)interval_cmp,
+                                              NULL,
+                                              (GDestroyNotify)g_free,
+                                              (GDestroyNotify)g_free);
+
+    g_tree_insert(iommu->domains, GUINT_TO_POINTER(6), first_domain);
+    g_tree_insert(iommu->domains, (gpointer)0x0000000000000005, second_domain);
+
+    c = g_malloc0(sizeof(TestGTreeInterval));
+    c->low = 0x1000000;
+    c->high = 0x1FFFFFF;
+
+    map_c = g_malloc0(sizeof(TestGTreeMapping));
+    map_c->phys_addr = 0xF000000;
+    map_c->flags = 0x3;
+
+    g_tree_insert(second_domain->mappings, c, map_c);
+    return iommu;
+}
+
+static void destroy_iommu(TestGTreeIOMMU *iommu)
+{
+    g_tree_destroy(iommu->domains);
+    g_free(iommu);
+}
+
+static void test_gtree_save_iommu(void)
+{
+    TestGTreeIOMMU *iommu = create_iommu();
+
+    save_vmstate(&vmstate_iommu, iommu);
+    compare_vmstate(iommu_dump, sizeof(iommu_dump));
+    destroy_iommu(iommu);
+}
+
+static void test_gtree_load_iommu(void)
+{
+    TestGTreeIOMMU *dest_iommu = g_malloc0(sizeof(TestGTreeIOMMU));
+    TestGTreeIOMMU *orig_iommu = create_iommu();
+    QEMUFile *fsave, *fload;
+    char eof;
+    int ret;
+
+    fsave = open_test_file(true);
+    qemu_put_buffer(fsave, iommu_dump, sizeof(iommu_dump));
+    g_assert(!qemu_file_get_error(fsave));
+    qemu_fclose(fsave);
+
+    fload = open_test_file(false);
+    vmstate_load_state(fload, &vmstate_iommu, dest_iommu, 1);
+    ret = qemu_file_get_error(fload);
+    eof = qemu_get_byte(fload);
+    ret = qemu_file_get_error(fload);
+    g_assert(!ret);
+    g_assert_cmpint(orig_iommu->id, ==, dest_iommu->id);
+    g_assert_cmpint(eof, ==, QEMU_VM_EOF);
+
+    diff_iommu(orig_iommu, dest_iommu);
+    destroy_iommu(orig_iommu);
+    destroy_iommu(dest_iommu);
+    qemu_fclose(fload);
+}
+
 typedef struct TmpTestStruct {
     TestStruct *parent;
     int64_t diff;
@@ -932,6 +1349,10 @@ int main(int argc, char **argv)
                     test_arr_ptr_prim_0_load);
     g_test_add_func("/vmstate/qtailq/save/saveq", test_save_q);
     g_test_add_func("/vmstate/qtailq/load/loadq", test_load_q);
+    g_test_add_func("/vmstate/gtree/save/savedomain", test_gtree_save_domain);
+    g_test_add_func("/vmstate/gtree/load/loaddomain", test_gtree_load_domain);
+    g_test_add_func("/vmstate/gtree/save/saveiommu", test_gtree_save_iommu);
+    g_test_add_func("/vmstate/gtree/load/loadiommu", test_gtree_load_iommu);
     g_test_add_func("/vmstate/tmp_struct", test_tmp_struct);
     g_test_run();