diff --git a/qemu/tests/9p.py b/qemu/tests/9p.py
index 0909d41642995d15a9cfc6977015ef65f211fc1f..818593121019904f612ffc02c0a93825111b409c 100644
--- a/qemu/tests/9p.py
+++ b/qemu/tests/9p.py
@@ -1,8 +1,6 @@
 import os
 import logging
 
-from autotest.client.shared import error
-
 from virttest import utils_test
 
 
@@ -45,7 +43,7 @@ def run(test, params, env):
 
         if (mount_status != 0):
             logging.error("mount failed")
-            raise error.TestFail('mount failed.')
+            test.fail('mount failed.')
 
         # Collect test parameters
         timeout = int(params.get("test_timeout", 14400))
diff --git a/qemu/tests/audio.py b/qemu/tests/audio.py
index 9abdcf20e66d7995395f7eeb4ce7151661e73b03..a9c3366ebb53bfa8361d38b5183941d08c9ef924 100644
--- a/qemu/tests/audio.py
+++ b/qemu/tests/audio.py
@@ -1,7 +1,7 @@
-from autotest.client.shared import error
+from virttest import error_context
 
 
-@error.context_aware
+@error_context.context_aware
 def run(test, params, env):
     """
     Test guest audio:
@@ -19,8 +19,8 @@ def run(test, params, env):
     random_content_size = params.get("random_content_size")
     audio_device = params.get("audio_device")
 
-    error.context("Verifying whether /dev/dsp is present")
+    error_context.context("Verifying whether /dev/dsp is present")
     session.cmd("test -c %s" % audio_device)
-    error.context("Trying to write to the device")
+    error_context.context("Trying to write to the device")
     session.cmd("dd if=/dev/urandom of=%s bs=%s count=1" %
                 (audio_device, random_content_size))
diff --git a/qemu/tests/balloon_disable.py b/qemu/tests/balloon_disable.py
index 2a8881c82bf0570ad213c6cb2513ebf4a9d90e2e..89fe3c0d809ca94cb66d026df42ed5d443941f80 100644
--- a/qemu/tests/balloon_disable.py
+++ b/qemu/tests/balloon_disable.py
@@ -1,5 +1,3 @@
-from autotest.client.shared import error
-
 from virttest import qemu_monitor
 
 
@@ -23,6 +21,5 @@ def run(test, params, env):
         output = str(e)
     if not ("has not been activated" in output or
             "No balloon device has been activated" in output):
-        raise error.TestFail("Balloon driver still on when disable"
-                             " it on command line")
+        test.fail("Balloon driver still on when disable it on command line")
     session.close()
diff --git a/qemu/tests/balloon_stop_continue.py b/qemu/tests/balloon_stop_continue.py
index 4cda22eaf243776123262f8e07918d4a34ebc09d..820fe4d27abdfb587733ed2301c07e572685b5f7 100644
--- a/qemu/tests/balloon_stop_continue.py
+++ b/qemu/tests/balloon_stop_continue.py
@@ -1,10 +1,11 @@
 import time
 import logging
 import random
-from autotest.client.shared import error
 
+from virttest import error_context
 
-@error.context_aware
+
+@error_context.context_aware
 def run(test, params, env):
     """
     Query balloon memory size, stop and continue vm from monitor
@@ -24,14 +25,14 @@ def run(test, params, env):
     timeout = int(params.get("login_timeout", 360))
     end_time = time.time() + repeat_timeout
     while time.time() < end_time:
-        error.context("Query balloon memory from monitor", logging.info)
+        error_context.context("Query balloon memory from monitor", logging.info)
         vm.monitor.info("balloon")
-        error.context("Stop and continue vm from monitor", logging.info)
+        error_context.context("Stop and continue vm from monitor", logging.info)
         vm.monitor.cmd("stop")
         vm.monitor.cmd('cont')
         vm.verify_alive()
         time.sleep(random.randint(0, 3))
 
-    error.context("Login guest after the test", logging.info)
+    error_context.context("Login guest after the test", logging.info)
     session = vm.wait_for_login(timeout=timeout)
     session.close()
diff --git a/qemu/tests/blk_stream.py b/qemu/tests/blk_stream.py
index 9604575def788ff4a70872a53d1a5a193161373b..951f96f37050589fb99f730757cbc3d578cbe9fa 100644
--- a/qemu/tests/blk_stream.py
+++ b/qemu/tests/blk_stream.py
@@ -1,7 +1,6 @@
 import logging
 
-from autotest.client.shared import error
-
+from virttest import error_context
 from virttest import utils_misc
 
 from qemu.tests import block_copy
@@ -25,7 +24,7 @@ class BlockStream(block_copy.BlockCopy):
         self.default_params.update(default_params)
         return super(BlockStream, self).parser_test_args()
 
-    @error.context_aware
+    @error_context.context_aware
     def start(self):
         """
         start block device streaming job;
@@ -33,16 +32,16 @@ class BlockStream(block_copy.BlockCopy):
         params = self.parser_test_args()
         default_speed = params.get("default_speed")
 
-        error.context("start to stream block device", logging.info)
+        error_context.context("start to stream block device", logging.info)
         self.vm.block_stream(self.device, default_speed, self.base_image, self.ext_args)
         status = self.get_status()
         if not status:
-            raise error.TestFail("no active job found")
+            self.test.fail("no active job found")
         msg = "block stream job running, "
         msg += "with limited speed %s B/s" % default_speed
         logging.info(msg)
 
-    @error.context_aware
+    @error_context.context_aware
     def create_snapshots(self):
         """
         create live snapshot_chain, snapshots chain define in $snapshot_chain
@@ -50,7 +49,7 @@ class BlockStream(block_copy.BlockCopy):
         params = self.parser_test_args()
         image_format = params["snapshot_format"]
         snapshots = params["snapshot_chain"].split()
-        error.context("create live snapshots", logging.info)
+        error_context.context("create live snapshots", logging.info)
         for snapshot in snapshots:
             snapshot = utils_misc.get_path(self.data_dir, snapshot)
             image_file = self.get_image_file()
@@ -59,7 +58,7 @@ class BlockStream(block_copy.BlockCopy):
                 image_file = self.get_image_file()
                 logging.info("expect file: %s" % snapshot +
                              "opening file: %s" % image_file)
-                raise error.TestFail("create snapshot '%s' fail" % snapshot)
+                self.test.fail("create snapshot '%s' fail" % snapshot)
             self.trash_files.append(snapshot)
 
     def action_when_streaming(self):
diff --git a/qemu/tests/block_copy.py b/qemu/tests/block_copy.py
index 04042d560a1a1afd987e46473cb5c098f2637e05..6a74cb281151e9ff707e75b409c24a655ba2399e 100644
--- a/qemu/tests/block_copy.py
+++ b/qemu/tests/block_copy.py
@@ -3,10 +3,10 @@ import time
 import random
 import logging
 
-from autotest.client.shared import utils
-from autotest.client.shared import error
+from avocado.utils import process
 
 from virttest import data_dir
+from virttest import error_context
 from virttest import storage
 from virttest import qemu_storage
 from virttest import utils_misc
@@ -113,11 +113,11 @@ class BlockCopy(object):
                     fun = getattr(self, step)
                     fun()
                 else:
-                    error.TestError("undefined step %s" % step)
+                    self.test.error("undefined step %s" % step)
         except KeyError:
             logging.warn("Undefined test phase '%s'" % tag)
 
-    @error.context_aware
+    @error_context.context_aware
     def cancel(self):
         """
         cancel active job on given image;
@@ -127,7 +127,7 @@ class BlockCopy(object):
             ret &= bool(self.vm.monitor.get_event("BLOCK_JOB_CANCELLED"))
             return ret
 
-        error.context("cancel block copy job", logging.info)
+        error_context.context("cancel block copy job", logging.info)
         params = self.parser_test_args()
         timeout = params.get("cancel_timeout")
         self.vm.monitor.clear_event("BLOCK_JOB_CANCELLED")
@@ -135,7 +135,7 @@ class BlockCopy(object):
         cancelled = utils_misc.wait_for(is_cancelled, timeout=timeout)
         if not cancelled:
             msg = "Cancel block job timeout in %ss" % timeout
-            raise error.TestFail(msg)
+            self.test.fail(msg)
         self.vm.monitor.clear_event("BLOCK_JOB_CANCELLED")
 
     def is_paused(self):
@@ -163,25 +163,25 @@ class BlockCopy(object):
         pause active job;
         """
         if self.is_paused():
-            raise error.TestError("Job has been already paused.")
+            self.test.error("Job has been already paused.")
         logging.info("Pause block job.")
         self.vm.pause_block_job(self.device)
         time.sleep(5)
         if not self.is_paused():
-            raise error.TestFail("Pause block job failed.")
+            self.test.fail("Pause block job failed.")
 
     def resume_job(self):
         """
         resume a paused job.
         """
         if not self.is_paused():
-            raise error.TestError("Job is not paused, can't be resume.")
+            self.test.error("Job is not paused, can't be resume.")
         logging.info("Resume block job.")
         self.vm.resume_block_job(self.device)
         if self.is_paused():
-            raise error.TestFail("Resume block job failed.")
+            self.test.fail("Resume block job failed.")
 
-    @error.context_aware
+    @error_context.context_aware
     def set_speed(self):
         """
         set limited speed for block job;
@@ -189,23 +189,24 @@ class BlockCopy(object):
         params = self.parser_test_args()
         max_speed = params.get("max_speed")
         expected_speed = int(params.get("expected_speed", max_speed))
-        error.context("set speed to %s B/s" % expected_speed, logging.info)
+        error_context.context("set speed to %s B/s" % expected_speed,
+                              logging.info)
         self.vm.set_job_speed(self.device, expected_speed)
         status = self.get_status()
         if not status:
-            raise error.TestFail("Unable to query job status.")
+            self.test.fail("Unable to query job status.")
         speed = status["speed"]
         if speed != expected_speed:
             msg = "Set speed fail. (expected speed: %s B/s," % expected_speed
             msg += "actual speed: %s B/s)" % speed
-            raise error.TestFail(msg)
+            self.test.fail(msg)
 
-    @error.context_aware
+    @error_context.context_aware
     def reboot(self, method="shell", boot_check=True):
         """
         reboot VM, alias of vm.reboot();
         """
-        error.context("reboot vm", logging.info)
+        error_context.context("reboot vm", logging.info)
         params = self.parser_test_args()
         timeout = params["login_timeout"]
 
@@ -213,42 +214,42 @@ class BlockCopy(object):
             session = self.get_session()
             return self.vm.reboot(session=session,
                                   timeout=timeout, method=method)
-        error.context("reset guest via system_reset", logging.info)
+        error_context.context("reset guest via system_reset", logging.info)
         self.vm.monitor.clear_event("RESET")
         self.vm.monitor.cmd("system_reset")
         reseted = utils_misc.wait_for(lambda:
                                       self.vm.monitor.get_event("RESET"),
                                       timeout=timeout)
         if not reseted:
-            raise error.TestFail("No RESET event received after"
-                                 "execute system_reset %ss" % timeout)
+            self.test.fail("No RESET event received after"
+                           "execute system_reset %ss" % timeout)
         self.vm.monitor.clear_event("RESET")
         return None
 
-    @error.context_aware
+    @error_context.context_aware
     def stop(self):
         """
         stop vm and verify it is really paused;
         """
-        error.context("stop vm", logging.info)
+        error_context.context("stop vm", logging.info)
         self.vm.pause()
         return self.vm.verify_status("paused")
 
-    @error.context_aware
+    @error_context.context_aware
     def resume(self):
         """
         resume vm and verify it is really running;
         """
-        error.context("resume vm", logging.info)
+        error_context.context("resume vm", logging.info)
         self.vm.resume()
         return self.vm.verify_status("running")
 
-    @error.context_aware
+    @error_context.context_aware
     def verify_alive(self):
         """
         check guest can response command correctly;
         """
-        error.context("verify guest alive", logging.info)
+        error_context.context("verify guest alive", logging.info)
         params = self.parser_test_args()
         session = self.get_session()
         cmd = params.get("alive_check_cmd", "dir")
@@ -314,7 +315,7 @@ class BlockCopy(object):
         for test in self.params.get("when_start").split():
             if hasattr(self, test):
                 fun = getattr(self, test)
-                bg = utils.InterruptedThread(fun)
+                bg = utils_misc.InterruptedThread(fun)
                 bg.start()
                 if bg.isAlive():
                     self.processes.append(bg)
@@ -336,7 +337,7 @@ class BlockCopy(object):
         timeout = params.get("wait_timeout")
         finished = utils_misc.wait_for(self.job_finished, timeout=timeout)
         if not finished:
-            raise error.TestFail("Job not finished in %s seconds" % timeout)
+            self.test.fail("Job not finished in %s seconds" % timeout)
         time_end = time.time()
         logging.info("Block job done.")
         return time_end - time_start
@@ -373,8 +374,7 @@ class BlockCopy(object):
         steady = utils_misc.wait_for(self.is_steady, first=3.0,
                                      step=3.0, timeout=timeout)
         if not steady:
-            raise error.TestFail("Wait mirroring job ready "
-                                 "timeout in %ss" % timeout)
+            self.test.fail("Wait mirroring job ready timeout in %ss" % timeout)
 
     def action_before_steady(self):
         """
@@ -409,7 +409,7 @@ class BlockCopy(object):
             self.vm.destroy()
         while self.trash_files:
             tmp_file = self.trash_files.pop()
-            utils.system("rm -f %s" % tmp_file, ignore_status=True)
+            process.system("rm -f %s" % tmp_file, ignore_status=True)
 
     def create_file(self, file_name):
         """
@@ -438,8 +438,8 @@ class BlockCopy(object):
         status, output = session.cmd_status_output("md5sum -c %s.md5" % file_name,
                                                    timeout=200)
         if status != 0:
-            raise error.TestFail("File %s changed, md5sum check output: %s" %
-                                 (file_name, output))
+            self.test.fail("File %s changed, md5sum check output: %s"
+                           % (file_name, output))
 
     def reopen(self, reopen_image):
         """
diff --git a/qemu/tests/block_discard.py b/qemu/tests/block_discard.py
index 8e75635d8301f29a0b21f858e92ef56cb67793b9..b44316d46571cf900a024990571f64c9a6e083c7 100644
--- a/qemu/tests/block_discard.py
+++ b/qemu/tests/block_discard.py
@@ -2,14 +2,15 @@ import os
 import re
 import logging
 
-from autotest.client import os_dep
-from autotest.client.shared import error
-from autotest.client.shared import utils
+from avocado.utils import genio
+from avocado.utils import path as utils_path
+from avocado.utils import process
 
 from virttest import env_process
+from virttest import error_context
 
 
-@error.context_aware
+@error_context.context_aware
 def run(test, params, env):
     """
     Qemu discard support test:
@@ -31,7 +32,7 @@ def run(test, params, env):
         """
         Get latest scsi disk which emulated by scsi_debug module.
         """
-        scsi_disk_info = utils.system_output("lsscsi").splitlines()
+        scsi_disk_info = process.system_output("lsscsi").splitlines()
         scsi_debug = [_ for _ in scsi_disk_info if 'scsi_debug' in _][-1]
         scsi_debug = scsi_debug.split()
         host_id = scsi_debug[0][1:-1]
@@ -54,7 +55,7 @@ def run(test, params, env):
         device_name = os.path.basename(device)
         path = "/sys/block/%s/device/scsi_disk" % device_name
         path += "/%s/provisioning_mode" % host_id
-        return utils.read_one_line(path).strip()
+        return genio.read_one_line(path).strip()
 
     def get_allocation_bitmap():
         """
@@ -62,7 +63,7 @@ def run(test, params, env):
         """
         path = "/sys/bus/pseudo/drivers/scsi_debug/map"
         try:
-            return utils.read_one_line(path).strip()
+            return genio.read_one_line(path).strip()
         except IOError:
             logging.warn("block allocation bitmap not exists")
         return ""
@@ -73,14 +74,14 @@ def run(test, params, env):
             vm.destroy()
             env.unregister_vm(vm.name)
 
-    os_dep.command("lsscsi")
+    utils_path.find_command("lsscsi")
     host_id, disk_name = get_host_scsi_disk()
     provisioning_mode = get_provisioning_mode(disk_name, host_id)
     logging.info("Current provisioning_mode = '%s'", provisioning_mode)
     bitmap = get_allocation_bitmap()
     if bitmap:
         logging.debug("block allocation bitmap: %s" % bitmap)
-        raise error.TestError("block allocation bitmap not empty before test.")
+        test.error("block allocation bitmap not empty before test.")
 
     # prepare params to boot vm with scsi_debug disk.
     vm_name = params["main_vm"]
@@ -92,7 +93,8 @@ def run(test, params, env):
     params["force_create_image_%s" % test_image] = "no"
     params["images"] = " ".join([params["images"], test_image])
 
-    error.context("boot guest with disk '%s'" % disk_name, logging.info)
+    error_context.context("boot guest with disk '%s'" % disk_name,
+                          logging.info)
     # boot guest with scsi_debug disk
     env_process.preprocess_vm(test, params, env, vm_name)
     vm = env.get_vm(vm_name)
@@ -100,7 +102,8 @@ def run(test, params, env):
     timeout = float(params.get("login_timeout", 240))
     session = vm.wait_for_login(timeout=timeout)
 
-    error.context("Fresh block allocation bitmap before test.", logging.info)
+    error_context.context("Fresh block allocation bitmap before test.",
+                          logging.info)
     device_name = get_guest_discard_disk(session)
     rewrite_disk_cmd = params["rewrite_disk_cmd"]
     rewrite_disk_cmd = rewrite_disk_cmd.replace("DISK", device_name)
@@ -109,27 +112,28 @@ def run(test, params, env):
     bitmap_before_trim = get_allocation_bitmap()
     if not re.match(r"\d+-\d+", bitmap_before_trim):
         logging.debug("bitmap before test: %s" % bitmap_before_trim)
-        raise error.TestFail("bitmap should be continuous before fstrim")
+        test.fail("bitmap should be continuous before fstrim")
 
     format_disk_cmd = params["format_disk_cmd"]
     format_disk_cmd = format_disk_cmd.replace("DISK", device_name)
-    error.context("format disk '%s' in guest" % device_name, logging.info)
+    error_context.context("format disk '%s' in guest" % device_name,
+                          logging.info)
     session.cmd(format_disk_cmd)
 
-    error.context("mount disk with discard options '%s'" % device_name,
-                  logging.info)
+    error_context.context("mount disk with discard options '%s'" % device_name,
+                          logging.info)
     mount_disk_cmd = params["mount_disk_cmd"]
     mount_disk_cmd = mount_disk_cmd.replace("DISK", device_name)
     session.cmd(mount_disk_cmd)
 
-    error.context("execute fstrim in guest", logging.info)
+    error_context.context("execute fstrim in guest", logging.info)
     fstrim_cmd = params["fstrim_cmd"]
     session.cmd(fstrim_cmd, timeout=timeout)
 
     bitmap_after_trim = get_allocation_bitmap()
     if not re.match(r"\d+-\d+,.*\d+-\d+$", bitmap_after_trim):
         logging.debug("bitmap after test: %s" % bitmap_before_trim)
-        raise error.TestFail("discard command doesn't issue"
-                             "to scsi_debug disk, please report bug for qemu")
+        test.fail("discard command doesn't issue"
+                  "to scsi_debug disk, please report bug for qemu")
     if vm:
         vm.destroy()
diff --git a/qemu/tests/block_resize.py b/qemu/tests/block_resize.py
index ae89972b7d933df185b0af7a5a76a97483bf4034..94fe4bde5f07bfa202ef987af0239f4782a56490 100644
--- a/qemu/tests/block_resize.py
+++ b/qemu/tests/block_resize.py
@@ -1,15 +1,14 @@
 import logging
 import re
 
-from autotest.client.shared import error
-
+from virttest import error_context
 from virttest import utils_misc
 from virttest import utils_test
 from virttest import storage
 from virttest import data_dir
 
 
-@error.context_aware
+@error_context.context_aware
 def run(test, params, env):
     """
     KVM block resize test:
@@ -34,9 +33,9 @@ def run(test, params, env):
                 return float(utils_misc.normalize_data_size(block_size[0],
                                                             order_magnitude="B"))
         else:
-            raise error.TestError("Can not find the block size for the"
-                                  " deivce. The output of command"
-                                  " is: %s" % output)
+            test.error("Can not find the block size for the"
+                       " deivce. The output of command"
+                       " is: %s" % output)
 
     def compare_block_size(session, block_cmd, block_pattern):
         """
@@ -83,28 +82,27 @@ def run(test, params, env):
             test.fail("No available tag to get drive id")
         drive_path = utils_misc.get_linux_drive_path(session, drive_id)
         if not drive_path:
-            raise error.TestError("Failed to get '%s' drive path"
-                                  % data_image)
+            test.error("Failed to get '%s' drive path" % data_image)
 
     block_size_cmd = params["block_size_cmd"].format(drive_path)
     block_size_pattern = params.get("block_size_pattern")
     need_reboot = params.get("need_reboot", "no") == "yes"
     accept_ratio = float(params.get("accept_ratio", 0))
 
-    error.context("Check image size in guest", logging.info)
+    error_context.context("Check image size in guest", logging.info)
     block_size = get_block_size(session, block_size_cmd, block_size_pattern)
     if (block_size > data_image_size or
             block_size < data_image_size * (1 - accept_ratio)):
-        raise error.TestError("Image size from guest and image not match"
-                              "Block size get from guest: %s \n"
-                              "Image size get from image: %s \n"
-                              % (block_size, data_image_size))
+        test.error("Image size from guest and image not match"
+                   "Block size get from guest: %s \n"
+                   "Image size get from image: %s \n"
+                   % (block_size, data_image_size))
 
     if params.get("guest_prepare_cmd"):
         session.cmd(params.get("guest_prepare_cmd"))
 
     if params.get("format_disk", "no") == "yes":
-        error.context("Format disk", logging.info)
+        error_context.context("Format disk", logging.info)
         utils_misc.format_windows_disk(session, params["disk_index"],
                                        mountpoint=params["disk_letter"])
 
@@ -141,24 +139,24 @@ def run(test, params, env):
 
         # We need shrink the disk in guest first, than in monitor
         if block_size < old_block_size and disk_update_cmd:
-            error.context("Shrink disk size to %s in guest"
-                          % block_size, logging.info)
+            error_context.context("Shrink disk size to %s in guest"
+                                  % block_size, logging.info)
             session.cmd(disk_update_cmd[index])
 
-        error.context("Change disk size to %s in monitor"
-                      % block_size, logging.info)
+        error_context.context("Change disk size to %s in monitor"
+                              % block_size, logging.info)
         vm.monitor.block_resize(data_image_dev, block_size)
 
         if need_reboot:
             session = vm.reboot(session=session)
         elif disk_rescan_cmd:
-            error.context("Rescan disk", logging.info)
+            error_context.context("Rescan disk", logging.info)
             session.cmd(disk_rescan_cmd)
 
         # We need expand disk in monitor first than extend it in guest
         if block_size > old_block_size and disk_update_cmd:
-            error.context("Extend disk to %s in guest"
-                          % block_size, logging.info)
+            error_context.context("Extend disk to %s in guest"
+                                  % block_size, logging.info)
             session.cmd(disk_update_cmd[index])
 
         global current_size
@@ -167,8 +165,7 @@ def run(test, params, env):
                                    (session, block_size_cmd,
                                     block_size_pattern),
                                    20, 0, 1, "Block Resizing"):
-            raise error.TestFail("Block size get from guest is not"
-                                 "the same as expected \n"
-                                 "Reported: %s\n"
-                                 "Expect: %s\n" % (current_size,
-                                                   block_size))
+            test.fail("Block size get from guest is not"
+                      "the same as expected \n"
+                      "Reported: %s\n"
+                      "Expect: %s\n" % (current_size, block_size))
diff --git a/qemu/tests/block_stream_drop_backingfile.py b/qemu/tests/block_stream_drop_backingfile.py
index e48cb0639fa5821aea71ea78cd07b6ff1a173240..48853c8afff56edef65ef002ee2a90789e776127 100644
--- a/qemu/tests/block_stream_drop_backingfile.py
+++ b/qemu/tests/block_stream_drop_backingfile.py
@@ -2,15 +2,15 @@ import os
 import re
 import logging
 
-from autotest.client import utils
-from autotest.client.shared import error
+from avocado.utils import process
 
+from virttest import error_context
 from virttest import storage
 from virttest import utils_misc
 from virttest import data_dir
 
 
-@error.context_aware
+@error_context.context_aware
 def run(test, params, env):
     """
     block_stream_without_backingfile test:
@@ -46,7 +46,7 @@ def run(test, params, env):
                                not vm.monitor.query_block_job(device_id),
                                timeout, first=0.2, step=2.0,
                                text="Wait for canceling block job") is None:
-            raise error.TestFail("Wait job finish timeout in %ss" % timeout)
+            test.fail("Wait job finish timeout in %ss" % timeout)
 
     def verify_backingfile(expect_backingfile):
         """
@@ -55,7 +55,7 @@ def run(test, params, env):
         """
         backing_file = vm.monitor.get_backingfile(device_id)
         if backing_file != expect_backingfile:
-            raise error.TestFail("Unexpect backingfile(%s)" % backing_file)
+            test.fail("Unexpect backingfile(%s)" % backing_file)
 
     def get_openingfiles():
         """
@@ -63,47 +63,48 @@ def run(test, params, env):
         """
         pid = vm.get_pid()
         cmd = params.get("snapshot_check_cmd") % pid
-        return set(utils.system_output(cmd, ignore_status=True).splitlines())
+        return set(process.system_output(cmd, ignore_status=True).splitlines())
 
     snapshots = map(lambda x: os.path.join(image_dir, x), ["sn1", "sn2"])
     try:
-        error.context("Create snapshots-chain(base->sn1->sn2)", logging.info)
+        error_context.context("Create snapshots-chain(base->sn1->sn2)",
+                              logging.info)
         for index, snapshot in enumerate(snapshots):
             base_file = index and snapshots[index - 1] or image_file
             device_id = vm.live_snapshot(base_file, snapshot)
             if not device_id:
-                raise error.TestFail("Fail to create %s" % snapshot)
-        error.context("Check backing-file of sn2", logging.info)
+                test.fail("Fail to create %s" % snapshot)
+        error_context.context("Check backing-file of sn2", logging.info)
         verify_backingfile(snapshots[0])
 
-        error.context("Merge sn1 to sn2", logging.info)
+        error_context.context("Merge sn1 to sn2", logging.info)
         vm.monitor.block_stream(device_id, base=image_file, speed=speed)
         wait_job_done(wait_timeout)
-        error.context("Check backing-file of sn2", logging.info)
+        error_context.context("Check backing-file of sn2", logging.info)
         verify_backingfile(image_file)
-        error.context("Check sn1 is not opening by qemu process",
-                      logging.info)
+        error_context.context("Check sn1 is not opening by qemu process",
+                              logging.info)
         if snapshots[0] in get_openingfiles():
-            raise error.TestFail("sn1 (%s) is opening by qemu" % snapshots[0])
+            test.fail("sn1 (%s) is opening by qemu" % snapshots[0])
 
-        error.context("Merge base to sn2", logging.info)
+        error_context.context("Merge base to sn2", logging.info)
         vm.monitor.block_stream(device_id)
         wait_job_done(wait_timeout)
-        error.context("Check backing-file of sn2", logging.info)
+        error_context.context("Check backing-file of sn2", logging.info)
         verify_backingfile(None)
-        error.context("check sn1 and base are not opening by qemu process",
-                      logging.info)
+        error_context.context("check sn1 and base are not opening "
+                              "by qemu process", logging.info)
         if set([snapshots[0], image_file]).issubset(get_openingfiles()):
-            raise error.TestFail("%s is opening by qemu" % set([snapshots[0],
-                                                                image_file]))
-        error.context("Check backing-file of sn2 by qemu-img", logging.info)
+            test.fail("%s is opening by qemu"
+                      % set([snapshots[0], image_file]))
+        error_context.context("Check backing-file of sn2 by qemu-img", logging.info)
         cmd = "%s info %s" % (qemu_img, snapshots[1])
         if re.search("backing file",
-                     utils.system_output(cmd, ignore_status=True)):
-            raise error.TestFail("should no backing-file in this step")
+                     process.system_output(cmd, ignore_status=True)):
+            test.fail("should no backing-file in this step")
 
-        error.context("Reboot VM to check it works fine", logging.info)
+        error_context.context("Reboot VM to check it works fine", logging.info)
         session = vm.reboot(session=session, timeout=timeout)
         session.cmd(alive_check_cmd)
     finally:
-        map(lambda x: utils.system("rm -rf %s" % x), snapshots)
+        map(lambda x: process.system("rm -rf %s" % x), snapshots)
diff --git a/qemu/tests/block_stream_negative.py b/qemu/tests/block_stream_negative.py
index 32ba030338cf781d62559d260f8c2c97b08d19a5..f2279a114e1033dfd4efce50436ee37ac81c66b5 100644
--- a/qemu/tests/block_stream_negative.py
+++ b/qemu/tests/block_stream_negative.py
@@ -1,6 +1,7 @@
 import logging
 
-from autotest.client.shared import error
+from virttest import error_context
+
 from qemu.tests import blk_stream
 
 
@@ -9,7 +10,7 @@ class BlockStreamNegative(blk_stream.BlockStream):
     def __init__(self, test, params, env, tag):
         super(BlockStreamNegative, self).__init__(test, params, env, tag)
 
-    @error.context_aware
+    @error_context.context_aware
     def set_speed(self):
         """
         set limited speed for block job;
@@ -20,17 +21,17 @@ class BlockStreamNegative(blk_stream.BlockStream):
         expected_speed = params.get("expected_speed", default_speed)
         if params.get("need_convert_to_int", "no") == "yes":
             expected_speed = int(expected_speed)
-        error.context("set speed to %s B/s" % expected_speed, logging.info)
+        error_context.context("set speed to %s B/s" % expected_speed,
+                              logging.info)
         args = {"device": self.device,
                 "speed": expected_speed}
         response = str(self.vm.monitor.cmd_qmp("block-job-set-speed", args))
         if "(core dump)" in response:
-            raise error.TestFail("Qemu core dump when reset speed"
-                                 " to a negative value.")
+            self.test.fail("Qemu core dump when reset "
+                           "speed to a negative value.")
         if match_str not in response:
-            raise error.TestFail("Fail to get expected result."
-                                 "%s is expected in %s" %
-                                 (match_str, response))
+            self.test.fail("Fail to get expected result. %s is expected in %s"
+                           % (match_str, response))
         logging.info("Keyword '%s' is found in QMP output '%s'." %
                      (match_str, response))
 
diff --git a/qemu/tests/block_stream_simple.py b/qemu/tests/block_stream_simple.py
index 04512c4c0c17e6ac3c2b5046f1e6788bb527d9bb..c7a693d10c2fe767c2e37cedcbdc8f6c3e5ce258 100644
--- a/qemu/tests/block_stream_simple.py
+++ b/qemu/tests/block_stream_simple.py
@@ -1,5 +1,7 @@
 import logging
-from autotest.client.shared import error
+
+from virttest import error_context
+
 from qemu.tests import blk_stream
 
 
@@ -8,14 +10,14 @@ class BlockStreamSimple(blk_stream.BlockStream):
     def __init__(self, test, params, env, tag):
         super(BlockStreamSimple, self).__init__(test, params, env, tag)
 
-    @error.context_aware
+    @error_context.context_aware
     def query_status(self):
         """
         query running block streaming job info;
         """
-        error.context("query job status", logging.info)
+        error_context.context("query job status", logging.info)
         if not self.get_status():
-            raise error.TestFail("No active job")
+            self.test.fail("No active job")
 
 
 def run(test, params, env):
diff --git a/qemu/tests/boot_cpu_model.py b/qemu/tests/boot_cpu_model.py
index ec03f617b8a6670d6a0558730931176bf29f94da..6548ff7e40c8fca345b60d64a16ec7b49d5ced9d 100644
--- a/qemu/tests/boot_cpu_model.py
+++ b/qemu/tests/boot_cpu_model.py
@@ -1,13 +1,12 @@
 import logging
 
-from autotest.client.shared import error
-
 from virttest import env_process
+from virttest import error_context
 from virttest import utils_misc
 from virttest import utils_test
 
 
-@error.context_aware
+@error_context.context_aware
 def run(test, params, env):
     """
     boot cpu model test:
@@ -25,7 +24,7 @@ def run(test, params, env):
     model_list = params.get("cpu_model")
     if not model_list:
         if cpu_vendor == "unknow":
-            raise error.TestError("unknow cpu vendor")
+            test.error("unknow cpu vendor")
         else:
             model_list = params.get("cpu_model_%s" % cpu_vendor,
                                     host_model[-1])
@@ -53,7 +52,5 @@ def run(test, params, env):
                     logging.info("shutdown guest successfully")
             else:
                 if params.get("enable_check", "no") == "yes":
-                    raise error.TestWarn("Can not test %s model on %s host, "
-                                         "pls use %s host" % (model,
-                                                              host_model[0],
-                                                              model))
+                    test.cancel("Can not test %s model on %s host, pls use "
+                                "%s host" % (model, host_model[0], model))
diff --git a/qemu/tests/boot_from_device.py b/qemu/tests/boot_from_device.py
index e0e48f3cc6fdbe60347c5670bff0500ae3aa356a..62c048477b2c2a7ed0bd33b78eec8e2cf62a9a1d 100644
--- a/qemu/tests/boot_from_device.py
+++ b/qemu/tests/boot_from_device.py
@@ -3,9 +3,9 @@ import re
 import time
 import logging
 
-from autotest.client import utils
-from virttest import error_context
+from avocado.utils import process
 
+from virttest import error_context
 from virttest import utils_misc
 from virttest import data_dir
 from virttest import qemu_storage
@@ -35,9 +35,9 @@ def run(test, params, env):
         logging.info("creating test cdrom")
         cdrom_test = params.get("cdrom_test")
         cdrom_test = utils_misc.get_path(data_dir.get_data_dir(), cdrom_test)
-        utils.run("dd if=/dev/urandom of=test bs=10M count=1")
-        utils.run("mkisofs -o %s test" % cdrom_test)
-        utils.run("rm -f test")
+        process.run("dd if=/dev/urandom of=test bs=10M count=1")
+        process.run("mkisofs -o %s test" % cdrom_test)
+        process.run("rm -f test")
 
     def cleanup_cdroms():
         """
diff --git a/qemu/tests/boot_order_check.py b/qemu/tests/boot_order_check.py
index 9739f18bc7876166c2c581b7fcdee571a7254b69..66ee4b4d671e7b786af3920b03e6bddb68d61dfe 100644
--- a/qemu/tests/boot_order_check.py
+++ b/qemu/tests/boot_order_check.py
@@ -2,7 +2,8 @@ import logging
 import re
 import time
 
-from autotest.client import utils
+from avocado.utils import process
+
 from virttest import error_context
 
 
@@ -30,7 +31,7 @@ def run(test, params, env):
     # Disable nic device, boot fail from nic device except user model
     if params['nettype'] != 'user':
         for nic in vm.virtnet:
-            utils.system("ifconfig %s down" % nic.ifname)
+            process.system("ifconfig %s down" % nic.ifname)
 
     vm.resume()
 
diff --git a/qemu/tests/boot_time.py b/qemu/tests/boot_time.py
index 57bea031ee8a88a3bccb213a19f52e0e2dddd445..aac222ef7dcf09a390caa6e8628816de197affd1 100644
--- a/qemu/tests/boot_time.py
+++ b/qemu/tests/boot_time.py
@@ -1,13 +1,12 @@
 import logging
 
-from autotest.client.shared import error
-
+from virttest import error_context
 from virttest import utils_misc
 from virttest import env_process
 from virttest.staging import utils_memory
 
 
-@error.context_aware
+@error_context.context_aware
 def run(test, params, env):
     """
     KVM boot time test:
@@ -27,16 +26,17 @@ def run(test, params, env):
     timeout = int(params.get("login_timeout", 360))
     session = vm.wait_for_login(timeout=timeout)
 
-    error.context("Set guest run level to 1", logging.info)
+    error_context.context("Set guest run level to 1", logging.info)
     single_user_cmd = params['single_user_cmd']
     session.cmd(single_user_cmd)
 
     try:
-        error.context("Shut down guest", logging.info)
+        error_context.context("Shut down guest", logging.info)
         session.cmd('sync')
         vm.destroy()
 
-        error.context("Boot up guest and measure the boot time", logging.info)
+        error_context.context("Boot up guest and measure the boot time",
+                              logging.info)
         utils_memory.drop_caches()
         vm.create()
         vm.verify_alive()
@@ -48,7 +48,7 @@ def run(test, params, env):
 
     finally:
         try:
-            error.context("Restore guest run level", logging.info)
+            error_context.context("Restore guest run level", logging.info)
             restore_level_cmd = params['restore_level_cmd']
             session.cmd(restore_level_cmd)
             session.cmd('sync')
@@ -62,7 +62,6 @@ def run(test, params, env):
             params["restore_image_after_testing"] = "yes"
 
     if boot_time > expect_time:
-        raise error.TestFail(
-            "Guest boot up is taking too long: %ss" % boot_time)
+        test.fail("Guest boot up is taking too long: %ss" % boot_time)
 
     session.close()
diff --git a/qemu/tests/boot_with_different_vectors.py b/qemu/tests/boot_with_different_vectors.py
index aa83d2b323833c04f7685ac3f80ec8e83eca5bb0..14a1968bc91fd518688efede917d1978fa845725 100644
--- a/qemu/tests/boot_with_different_vectors.py
+++ b/qemu/tests/boot_with_different_vectors.py
@@ -1,15 +1,14 @@
 import logging
 import re
 
-from autotest.client.shared import error
-
+from virttest import error_context
 from virttest import utils_net
 from virttest import utils_test
 from virttest import env_process
 from virttest import virt_vm
 
 
-@error.context_aware
+@error_context.context_aware
 def run(test, params, env):
     """
     Boot guest with different vectors, then do netperf testing.
@@ -27,7 +26,8 @@ def run(test, params, env):
     """
 
     def boot_guest_with_vectors(vectors):
-        error.context("Boot guest with vectors = %s" % vectors, logging.info)
+        error_context.context("Boot guest with vectors = %s" % vectors,
+                              logging.info)
         params["vectors"] = vectors
         params["start_vm"] = "yes"
         try:
@@ -40,7 +40,7 @@ def run(test, params, env):
         if int(vectors) < 0:
             msg = "Qemu did not raise correct error"
             msg += " when vectors = %s" % vectors
-            raise error.TestFail(msg)
+            test.fail(msg)
 
         vm = env.get_vm(params["main_vm"])
         vm.verify_alive()
@@ -48,7 +48,7 @@ def run(test, params, env):
 
     def enable_multi_queues(vm):
         session = vm.wait_for_login(timeout=login_timeout)
-        error.context("Enable multi queues in guest.", logging.info)
+        error_context.context("Enable multi queues in guest.", logging.info)
         for nic_index, nic in enumerate(vm.virtnet):
             ifname = utils_net.get_linux_ifname(session, nic.mac)
             queues = int(nic.queues)
@@ -57,12 +57,13 @@ def run(test, params, env):
             if status:
                 msg = "Fail to enable multi queue in guest."
                 msg += "Command %s, fail with output %s" % (mq_set_cmd, output)
-                error.TestError(msg)
+                test.error(msg)
 
     def check_msi_support(session):
         devices = session.cmd_output("lspci |grep Eth").strip()
         vectors = params["vectors"]
-        error.context("Check if vnic inside guest support msi.", logging.info)
+        error_context.context("Check if vnic inside guest support msi.",
+                              logging.info)
         for device in devices.split("\n"):
             if not device:
                 continue
@@ -70,7 +71,7 @@ def run(test, params, env):
             msi_check_cmd = "lspci -vvv -s %s |grep MSI" % d_id
             output = session.cmd_output(msi_check_cmd)
             if vectors == 0 and output:
-                error.TestFail("Guest do not support msi when vectors = 0.")
+                test.fail("Guest do not support msi when vectors = 0.")
             if output:
                 if vectors == 1:
                     if "MSI-X: Enable-" in output:
@@ -78,17 +79,18 @@ def run(test, params, env):
                     else:
                         msg = "Command %s get wrong output." % msi_check_cmd
                         msg += " when vectors = 1"
-                        error.TestFail(msg)
+                        test.fail(msg)
                 else:
                     if "MSI-X: Enable+" in output:
                         logging.info("MSI-X is enabled")
                     else:
                         msg = "Command %s get wrong output." % msi_check_cmd
                         msg += " when vectors = %s" % vectors
-                        error.TestFail(msg)
+                        test.fail(msg)
 
     def check_interrupt(session, vectors):
-        error.context("Check the cpu interrupt of virito", logging.info)
+        error_context.context("Check the cpu interrupt of virito",
+                              logging.info)
         cmd = "cat /proc/interrupts |grep virtio"
         output = session.cmd_output(cmd)
         vectors = int(vectors)
@@ -96,20 +98,20 @@ def run(test, params, env):
             if "IO-APIC-fasteoi" not in output:
                 msg = "Could not find IO-APIC-fasteoi interrupt"
                 msg += " when vectors = %s" % vectors
-                error.TestFail(msg)
+                test.fail(msg)
         elif 2 <= vectors and vectors <= 8:
             if not re.findall("vritio[0-9]-virtqueues", output):
                 msg = "Could not find the device for msi interrupt "
                 msg += "when vectors = %s " % vectors
                 msg += "Command %s got output %s" % (cmd, output)
-                error.TestFail(msg)
+                test.fail(msg)
         elif vectors == 9 or vectors == 10:
             if not (re.findall("virtio[0-9]-input", output) and
                     re.findall("virtio[0-9]-output", output)):
                 msg = "Could not find the device for msi interrupt "
                 msg += "when vectors = %s " % vectors
                 msg += "Command %s got output %s" % (cmd, output)
-                error.TestFail(msg)
+                test.fail(msg)
 
     vectors_list = params["vectors_list"]
     login_timeout = int(params.get("login_timeout", 360))
@@ -122,5 +124,5 @@ def run(test, params, env):
         enable_multi_queues(vm)
         check_msi_support(session)
         check_interrupt(session, vectors)
-        error.context("Run netperf test in guest.", logging.info)
+        error_context.context("Run netperf test in guest.", logging.info)
         utils_test.run_virt_sub_test(test, params, env, sub_type=sub_test)