From bae2632658bce8d09a8b5f777e8a3d1b6c960467 Mon Sep 17 00:00:00 2001
From: Alessandro Pilotti <ap@pilotti.it>
Date: Mon, 13 Aug 2012 17:24:16 +0300
Subject: Adds Hyper-V support in nova-compute (with new network_info model),
 including unit tests

blueprint hyper-v-revival

Features included in ths commit:

Spawn (including CoW image option support)
Destroy
Info
List
Pause
Unpause
Suspend
Resume
Reboot
Power On
Power Off
Snapshot
Volume Attach
Volume Detach
Boot from Volume
Live Migration

Supported platforms:

Windows Server / Hyper-V Server 2008 R2
Windows Server / Hyper-V Server 2012

Unit tests:

Unit tests for all the listed features are included.
Tests can be execute on Linux as well.

nova.conf relevant flags:

Compute driver:

compute_driver=nova.virt.hyperv.driver.HyperVDriver

External vswitch to be used:

vswitch_name=an_external_vswitch

Path where the VHDs are going to be stored

instances_path=C:\Hyper-V\instances

Live migration support for hosts with etherogeneus CPUs

limit_cpu_features=true

Change-Id: Ic40adcd2d78b0ca6792d77940810f5a44de8cc37
---
 nova/tests/hyperv/__init__.py                      |   0
 nova/tests/hyperv/basetestcase.py                  |  96 +++
 nova/tests/hyperv/db_fakes.py                      | 166 ++++++
 nova/tests/hyperv/hypervutils.py                   | 245 ++++++++
 nova/tests/hyperv/mockproxy.py                     | 234 ++++++++
 nova/tests/hyperv/stubs/README.rst                 |   2 +
 ...pi.HyperVAPITestCase.test_attach_volume_os.p.gz | Bin 0 -> 670 bytes
 ...VAPITestCase.test_attach_volume_subprocess.p.gz | Bin 0 -> 2768 bytes
 ....HyperVAPITestCase.test_attach_volume_time.p.gz | Bin 0 -> 257 bytes
 ....HyperVAPITestCase.test_attach_volume_uuid.p.gz | Bin 0 -> 660 bytes
 ...h_volume_with_target_connection_failure_os.p.gz | Bin 0 -> 702 bytes
 ..._with_target_connection_failure_subprocess.p.gz | Bin 0 -> 571 bytes
 ...volume_with_target_connection_failure_time.p.gz | Bin 0 -> 277 bytes
 ...volume_with_target_connection_failure_uuid.p.gz | Bin 0 -> 652 bytes
 ..._volume_with_target_connection_failure_wmi.p.gz | Bin 0 -> 23220 bytes
 ...i.HyperVAPITestCase.test_attach_volume_wmi.p.gz | Bin 0 -> 28631 bytes
 ...ITestCase.test_boot_from_volume_subprocess.p.gz | Bin 0 -> 385 bytes
 ...perVAPITestCase.test_boot_from_volume_time.p.gz | Bin 0 -> 260 bytes
 ...perVAPITestCase.test_boot_from_volume_uuid.p.gz | Bin 0 -> 578 bytes
 ...yperVAPITestCase.test_boot_from_volume_wmi.p.gz | Bin 0 -> 20274 bytes
 ...pi.HyperVAPITestCase.test_detach_volume_os.p.gz | Bin 0 -> 725 bytes
 ...VAPITestCase.test_detach_volume_subprocess.p.gz | Bin 0 -> 426 bytes
 ....HyperVAPITestCase.test_detach_volume_time.p.gz | Bin 0 -> 257 bytes
 ....HyperVAPITestCase.test_detach_volume_uuid.p.gz | Bin 0 -> 660 bytes
 ...i.HyperVAPITestCase.test_detach_volume_wmi.p.gz | Bin 0 -> 31833 bytes
 ...i.HyperVAPITestCase.test_live_migration_os.p.gz | Bin 0 -> 726 bytes
 ...HyperVAPITestCase.test_live_migration_time.p.gz | Bin 0 -> 250 bytes
 ...HyperVAPITestCase.test_live_migration_uuid.p.gz | Bin 0 -> 621 bytes
 ...test_live_migration_with_target_failure_os.p.gz | Bin 0 -> 744 bytes
 ...st_live_migration_with_target_failure_time.p.gz | Bin 0 -> 267 bytes
 ...st_live_migration_with_target_failure_uuid.p.gz | Bin 0 -> 640 bytes
 ...est_live_migration_with_target_failure_wmi.p.gz | Bin 0 -> 25238 bytes
 ....HyperVAPITestCase.test_live_migration_wmi.p.gz | Bin 0 -> 29404 bytes
 ...pi.HyperVAPITestCase.test_attach_volume_os.p.gz | Bin 0 -> 722 bytes
 ...yperVAPITestCase.test_attach_volume_shutil.p.gz | Bin 0 -> 289 bytes
 ...VAPITestCase.test_attach_volume_subprocess.p.gz | Bin 0 -> 2797 bytes
 ....HyperVAPITestCase.test_attach_volume_time.p.gz | Bin 0 -> 276 bytes
 ....HyperVAPITestCase.test_attach_volume_uuid.p.gz | Bin 0 -> 674 bytes
 ...h_volume_with_target_connection_failure_os.p.gz | Bin 0 -> 755 bytes
 ...lume_with_target_connection_failure_shutil.p.gz | Bin 0 -> 320 bytes
 ..._with_target_connection_failure_subprocess.p.gz | Bin 0 -> 591 bytes
 ...volume_with_target_connection_failure_time.p.gz | Bin 0 -> 290 bytes
 ...volume_with_target_connection_failure_uuid.p.gz | Bin 0 -> 658 bytes
 ..._volume_with_target_connection_failure_wmi.p.gz | Bin 0 -> 22780 bytes
 ...i.HyperVAPITestCase.test_attach_volume_wmi.p.gz | Bin 0 -> 28844 bytes
 ...rVAPITestCase.test_boot_from_volume_shutil.p.gz | Bin 0 -> 292 bytes
 ...ITestCase.test_boot_from_volume_subprocess.p.gz | Bin 0 -> 2800 bytes
 ...perVAPITestCase.test_boot_from_volume_time.p.gz | Bin 0 -> 275 bytes
 ...perVAPITestCase.test_boot_from_volume_uuid.p.gz | Bin 0 -> 592 bytes
 ...yperVAPITestCase.test_boot_from_volume_wmi.p.gz | Bin 0 -> 19845 bytes
 ...ypervapi.HyperVAPITestCase.test_destroy_os.p.gz | Bin 0 -> 748 bytes
 ...vapi.HyperVAPITestCase.test_destroy_shutil.p.gz | Bin 0 -> 283 bytes
 ...ervapi.HyperVAPITestCase.test_destroy_time.p.gz | Bin 0 -> 253 bytes
 ...ervapi.HyperVAPITestCase.test_destroy_uuid.p.gz | Bin 0 -> 627 bytes
 ...pervapi.HyperVAPITestCase.test_destroy_wmi.p.gz | Bin 0 -> 24040 bytes
 ...pi.HyperVAPITestCase.test_detach_volume_os.p.gz | Bin 0 -> 723 bytes
 ...yperVAPITestCase.test_detach_volume_shutil.p.gz | Bin 0 -> 289 bytes
 ...VAPITestCase.test_detach_volume_subprocess.p.gz | Bin 0 -> 2798 bytes
 ....HyperVAPITestCase.test_detach_volume_time.p.gz | Bin 0 -> 275 bytes
 ....HyperVAPITestCase.test_detach_volume_uuid.p.gz | Bin 0 -> 671 bytes
 ...i.HyperVAPITestCase.test_detach_volume_wmi.p.gz | Bin 0 -> 29537 bytes
 ...pervapi.HyperVAPITestCase.test_get_info_os.p.gz | Bin 0 -> 717 bytes
 ...api.HyperVAPITestCase.test_get_info_shutil.p.gz | Bin 0 -> 284 bytes
 ...rvapi.HyperVAPITestCase.test_get_info_time.p.gz | Bin 0 -> 254 bytes
 ...rvapi.HyperVAPITestCase.test_get_info_uuid.p.gz | Bin 0 -> 626 bytes
 ...ervapi.HyperVAPITestCase.test_get_info_wmi.p.gz | Bin 0 -> 23400 bytes
 ...TestCase.test_list_instances_detail_shutil.p.gz | Bin 0 -> 277 bytes
 ...APITestCase.test_list_instances_detail_wmi.p.gz | Bin 0 -> 7893 bytes
 ...perVAPITestCase.test_list_instances_shutil.p.gz | Bin 0 -> 290 bytes
 ....HyperVAPITestCase.test_list_instances_wmi.p.gz | Bin 0 -> 1300 bytes
 ...i.HyperVAPITestCase.test_live_migration_os.p.gz | Bin 0 -> 603 bytes
 ...perVAPITestCase.test_live_migration_shutil.p.gz | Bin 0 -> 290 bytes
 ...HyperVAPITestCase.test_live_migration_time.p.gz | Bin 0 -> 260 bytes
 ...HyperVAPITestCase.test_live_migration_uuid.p.gz | Bin 0 -> 631 bytes
 ...test_live_migration_with_target_failure_os.p.gz | Bin 0 -> 621 bytes
 ..._live_migration_with_target_failure_shutil.p.gz | Bin 0 -> 310 bytes
 ...st_live_migration_with_target_failure_time.p.gz | Bin 0 -> 280 bytes
 ...st_live_migration_with_target_failure_uuid.p.gz | Bin 0 -> 649 bytes
 ...est_live_migration_with_target_failure_wmi.p.gz | Bin 0 -> 23876 bytes
 ....HyperVAPITestCase.test_live_migration_wmi.p.gz | Bin 0 -> 26172 bytes
 ...rVAPITestCase.test_pause_already_paused_os.p.gz | Bin 0 -> 728 bytes
 ...ITestCase.test_pause_already_paused_shutil.p.gz | Bin 0 -> 296 bytes
 ...APITestCase.test_pause_already_paused_time.p.gz | Bin 0 -> 266 bytes
 ...APITestCase.test_pause_already_paused_uuid.p.gz | Bin 0 -> 638 bytes
 ...VAPITestCase.test_pause_already_paused_wmi.p.gz | Bin 0 -> 23490 bytes
 ..._hypervapi.HyperVAPITestCase.test_pause_os.p.gz | Bin 0 -> 716 bytes
 ...ervapi.HyperVAPITestCase.test_pause_shutil.p.gz | Bin 0 -> 281 bytes
 ...ypervapi.HyperVAPITestCase.test_pause_time.p.gz | Bin 0 -> 251 bytes
 ...ypervapi.HyperVAPITestCase.test_pause_uuid.p.gz | Bin 0 -> 624 bytes
 ...hypervapi.HyperVAPITestCase.test_pause_wmi.p.gz | Bin 0 -> 23350 bytes
 ...Case.test_power_off_already_powered_off_os.p.gz | Bin 0 -> 740 bytes
 ....test_power_off_already_powered_off_shutil.p.gz | Bin 0 -> 305 bytes
 ...se.test_power_off_already_powered_off_time.p.gz | Bin 0 -> 275 bytes
 ...se.test_power_off_already_powered_off_uuid.p.gz | Bin 0 -> 646 bytes
 ...ase.test_power_off_already_powered_off_wmi.p.gz | Bin 0 -> 23323 bytes
 ...ervapi.HyperVAPITestCase.test_power_off_os.p.gz | Bin 0 -> 719 bytes
 ...pi.HyperVAPITestCase.test_power_off_shutil.p.gz | Bin 0 -> 285 bytes
 ...vapi.HyperVAPITestCase.test_power_off_time.p.gz | Bin 0 -> 255 bytes
 ...vapi.HyperVAPITestCase.test_power_off_uuid.p.gz | Bin 0 -> 625 bytes
 ...rvapi.HyperVAPITestCase.test_power_off_wmi.p.gz | Bin 0 -> 23258 bytes
 ...ITestCase.test_power_on_already_running_os.p.gz | Bin 0 -> 734 bytes
 ...tCase.test_power_on_already_running_shutil.p.gz | Bin 0 -> 300 bytes
 ...estCase.test_power_on_already_running_time.p.gz | Bin 0 -> 270 bytes
 ...estCase.test_power_on_already_running_uuid.p.gz | Bin 0 -> 640 bytes
 ...TestCase.test_power_on_already_running_wmi.p.gz | Bin 0 -> 23305 bytes
 ...pervapi.HyperVAPITestCase.test_power_on_os.p.gz | Bin 0 -> 718 bytes
 ...api.HyperVAPITestCase.test_power_on_shutil.p.gz | Bin 0 -> 284 bytes
 ...rvapi.HyperVAPITestCase.test_power_on_time.p.gz | Bin 0 -> 254 bytes
 ...rvapi.HyperVAPITestCase.test_power_on_uuid.p.gz | Bin 0 -> 626 bytes
 ...ervapi.HyperVAPITestCase.test_power_on_wmi.p.gz | Bin 0 -> 23962 bytes
 ...tCase.test_pre_live_migration_cow_image_os.p.gz | Bin 0 -> 536 bytes
 ...e.test_pre_live_migration_cow_image_shutil.p.gz | Bin 0 -> 304 bytes
 ...ase.test_pre_live_migration_cow_image_time.p.gz | Bin 0 -> 273 bytes
 ...ase.test_pre_live_migration_cow_image_uuid.p.gz | Bin 0 -> 335 bytes
 ...Case.test_pre_live_migration_cow_image_wmi.p.gz | Bin 0 -> 1382 bytes
 ...est_pre_live_migration_no_cow_image_shutil.p.gz | Bin 0 -> 307 bytes
 ....test_pre_live_migration_no_cow_image_uuid.p.gz | Bin 0 -> 337 bytes
 ...e.test_pre_live_migration_no_cow_image_wmi.p.gz | Bin 0 -> 849 bytes
 ...hypervapi.HyperVAPITestCase.test_reboot_os.p.gz | Bin 0 -> 717 bytes
 ...rvapi.HyperVAPITestCase.test_reboot_shutil.p.gz | Bin 0 -> 282 bytes
 ...pervapi.HyperVAPITestCase.test_reboot_time.p.gz | Bin 0 -> 252 bytes
 ...pervapi.HyperVAPITestCase.test_reboot_uuid.p.gz | Bin 0 -> 623 bytes
 ...ypervapi.HyperVAPITestCase.test_reboot_wmi.p.gz | Bin 0 -> 23931 bytes
 ...APITestCase.test_resume_already_running_os.p.gz | Bin 0 -> 733 bytes
 ...estCase.test_resume_already_running_shutil.p.gz | Bin 0 -> 298 bytes
 ...ITestCase.test_resume_already_running_time.p.gz | Bin 0 -> 268 bytes
 ...ITestCase.test_resume_already_running_uuid.p.gz | Bin 0 -> 640 bytes
 ...PITestCase.test_resume_already_running_wmi.p.gz | Bin 0 -> 23341 bytes
 ...hypervapi.HyperVAPITestCase.test_resume_os.p.gz | Bin 0 -> 716 bytes
 ...rvapi.HyperVAPITestCase.test_resume_shutil.p.gz | Bin 0 -> 282 bytes
 ...pervapi.HyperVAPITestCase.test_resume_time.p.gz | Bin 0 -> 252 bytes
 ...pervapi.HyperVAPITestCase.test_resume_uuid.p.gz | Bin 0 -> 623 bytes
 ...ypervapi.HyperVAPITestCase.test_resume_wmi.p.gz | Bin 0 -> 24291 bytes
 ...pervapi.HyperVAPITestCase.test_snapshot_os.p.gz | Bin 0 -> 1012 bytes
 ...api.HyperVAPITestCase.test_snapshot_shutil.p.gz | Bin 0 -> 416 bytes
 ...rvapi.HyperVAPITestCase.test_snapshot_time.p.gz | Bin 0 -> 254 bytes
 ...rvapi.HyperVAPITestCase.test_snapshot_uuid.p.gz | Bin 0 -> 667 bytes
 ...tCase.test_snapshot_with_update_failure_os.p.gz | Bin 0 -> 1033 bytes
 ...e.test_snapshot_with_update_failure_shutil.p.gz | Bin 0 -> 437 bytes
 ...ase.test_snapshot_with_update_failure_time.p.gz | Bin 0 -> 274 bytes
 ...ase.test_snapshot_with_update_failure_uuid.p.gz | Bin 0 -> 688 bytes
 ...Case.test_snapshot_with_update_failure_wmi.p.gz | Bin 0 -> 24794 bytes
 ...ervapi.HyperVAPITestCase.test_snapshot_wmi.p.gz | Bin 0 -> 24505 bytes
 ....HyperVAPITestCase.test_spawn_cow_image_os.p.gz | Bin 0 -> 724 bytes
 ...erVAPITestCase.test_spawn_cow_image_shutil.p.gz | Bin 0 -> 291 bytes
 ...yperVAPITestCase.test_spawn_cow_image_time.p.gz | Bin 0 -> 261 bytes
 ...yperVAPITestCase.test_spawn_cow_image_uuid.p.gz | Bin 0 -> 631 bytes
 ...HyperVAPITestCase.test_spawn_cow_image_wmi.p.gz | Bin 0 -> 24716 bytes
 ...perVAPITestCase.test_spawn_no_cow_image_os.p.gz | Bin 0 -> 607 bytes
 ...APITestCase.test_spawn_no_cow_image_shutil.p.gz | Bin 0 -> 294 bytes
 ...rVAPITestCase.test_spawn_no_cow_image_time.p.gz | Bin 0 -> 264 bytes
 ...rVAPITestCase.test_spawn_no_cow_image_uuid.p.gz | Bin 0 -> 635 bytes
 ...erVAPITestCase.test_spawn_no_cow_image_wmi.p.gz | Bin 0 -> 24420 bytes
 ...estCase.test_spawn_no_vswitch_exception_os.p.gz | Bin 0 -> 737 bytes
 ...ase.test_spawn_no_vswitch_exception_shutil.p.gz | Bin 0 -> 302 bytes
 ...tCase.test_spawn_no_vswitch_exception_time.p.gz | Bin 0 -> 271 bytes
 ...tCase.test_spawn_no_vswitch_exception_uuid.p.gz | Bin 0 -> 558 bytes
 ...stCase.test_spawn_no_vswitch_exception_wmi.p.gz | Bin 0 -> 17307 bytes
 ...TestCase.test_suspend_already_suspended_os.p.gz | Bin 0 -> 734 bytes
 ...Case.test_suspend_already_suspended_shutil.p.gz | Bin 0 -> 301 bytes
 ...stCase.test_suspend_already_suspended_time.p.gz | Bin 0 -> 271 bytes
 ...stCase.test_suspend_already_suspended_uuid.p.gz | Bin 0 -> 643 bytes
 ...estCase.test_suspend_already_suspended_wmi.p.gz | Bin 0 -> 24133 bytes
 ...ypervapi.HyperVAPITestCase.test_suspend_os.p.gz | Bin 0 -> 717 bytes
 ...vapi.HyperVAPITestCase.test_suspend_shutil.p.gz | Bin 0 -> 283 bytes
 ...ervapi.HyperVAPITestCase.test_suspend_time.p.gz | Bin 0 -> 253 bytes
 ...ervapi.HyperVAPITestCase.test_suspend_uuid.p.gz | Bin 0 -> 623 bytes
 ...pervapi.HyperVAPITestCase.test_suspend_wmi.p.gz | Bin 0 -> 23864 bytes
 ...PITestCase.test_unpause_already_running_os.p.gz | Bin 0 -> 735 bytes
 ...stCase.test_unpause_already_running_shutil.p.gz | Bin 0 -> 299 bytes
 ...TestCase.test_unpause_already_running_time.p.gz | Bin 0 -> 269 bytes
 ...TestCase.test_unpause_already_running_uuid.p.gz | Bin 0 -> 640 bytes
 ...ITestCase.test_unpause_already_running_wmi.p.gz | Bin 0 -> 23690 bytes
 ...ypervapi.HyperVAPITestCase.test_unpause_os.p.gz | Bin 0 -> 717 bytes
 ...vapi.HyperVAPITestCase.test_unpause_shutil.p.gz | Bin 0 -> 283 bytes
 ...ervapi.HyperVAPITestCase.test_unpause_time.p.gz | Bin 0 -> 253 bytes
 ...ervapi.HyperVAPITestCase.test_unpause_uuid.p.gz | Bin 0 -> 626 bytes
 ...pervapi.HyperVAPITestCase.test_unpause_wmi.p.gz | Bin 0 -> 24099 bytes
 nova/tests/test_hypervapi.py                       | 463 +++++++++++++++
 nova/virt/hyperv/README.rst                        |  44 ++
 nova/virt/hyperv/__init__.py                       |   0
 nova/virt/hyperv/baseops.py                        |  61 ++
 nova/virt/hyperv/constants.py                      |  54 ++
 nova/virt/hyperv/driver.py                         | 226 +++++++
 nova/virt/hyperv/ioutils.py                        |  26 +
 nova/virt/hyperv/livemigrationops.py               | 162 +++++
 nova/virt/hyperv/snapshotops.py                    | 187 ++++++
 nova/virt/hyperv/vmops.py                          | 650 +++++++++++++++++++++
 nova/virt/hyperv/vmutils.py                        | 146 +++++
 nova/virt/hyperv/volumeops.py                      | 297 ++++++++++
 nova/virt/hyperv/volumeutils.py                    | 122 ++++
 191 files changed, 3181 insertions(+)
 create mode 100644 nova/tests/hyperv/__init__.py
 create mode 100644 nova/tests/hyperv/basetestcase.py
 create mode 100644 nova/tests/hyperv/db_fakes.py
 create mode 100644 nova/tests/hyperv/hypervutils.py
 create mode 100644 nova/tests/hyperv/mockproxy.py
 create mode 100644 nova/tests/hyperv/stubs/README.rst
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_os.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_subprocess.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_time.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_uuid.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_os.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_subprocess.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_time.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_uuid.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_wmi.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_wmi.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_subprocess.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_time.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_uuid.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_wmi.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_os.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_subprocess.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_time.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_uuid.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_wmi.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_os.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_time.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_uuid.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_os.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_time.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_uuid.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_wmi.p.gz
 create mode 100644 nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_wmi.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_os.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_shutil.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_subprocess.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_time.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_uuid.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_os.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_shutil.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_subprocess.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_time.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_uuid.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_wmi.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_wmi.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_boot_from_volume_shutil.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_boot_from_volume_subprocess.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_boot_from_volume_time.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_boot_from_volume_uuid.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_boot_from_volume_wmi.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_destroy_os.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_destroy_shutil.p.gz
 create mode 100644 nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_destroy_time.p.gz
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 create mode 100644 nova/tests/test_hypervapi.py
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 create mode 100644 nova/virt/hyperv/__init__.py
 create mode 100644 nova/virt/hyperv/baseops.py
 create mode 100644 nova/virt/hyperv/constants.py
 create mode 100644 nova/virt/hyperv/driver.py
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diff --git a/nova/tests/hyperv/__init__.py b/nova/tests/hyperv/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/nova/tests/hyperv/basetestcase.py b/nova/tests/hyperv/basetestcase.py
new file mode 100644
index 000000000..318cf2e28
--- /dev/null
+++ b/nova/tests/hyperv/basetestcase.py
@@ -0,0 +1,96 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+#  Copyright 2012 Cloudbase Solutions Srl
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+TestCase for MockProxy based tests and related classes.
+"""
+
+import gzip
+import os
+import pickle
+
+from nova import test
+from nova.tests.hyperv import mockproxy
+
+gen_test_mocks_key = 'NOVA_GENERATE_TEST_MOCKS'
+
+
+class BaseTestCase(test.TestCase):
+    """TestCase for MockProxy based tests."""
+
+    def run(self, result=None):
+        self._currentResult = result
+        super(BaseTestCase, self).run(result)
+
+    def setUp(self):
+        super(BaseTestCase, self).setUp()
+        self._mps = {}
+
+    def tearDown(self):
+        super(BaseTestCase, self).tearDown()
+
+        has_errors = len([test for (test, msgs) in self._currentResult.errors
+            if test.id() == self.id()]) > 0
+        failed = len([test for (test, msgs) in self._currentResult.failures
+            if test.id() == self.id()]) > 0
+
+        if not has_errors and not failed:
+            self._save_mock_proxies()
+
+    def _save_mock(self, name, mock):
+        path = self._get_stub_file_path(self.id(), name)
+        pickle.dump(mock, gzip.open(path, 'wb'))
+
+    def _get_stub_file_path(self, test_name, mock_name):
+        # test naming differs between platforms
+        prefix = 'nova.tests.'
+        if test_name.startswith(prefix):
+            test_name = test_name[len(prefix):]
+        file_name = '{0}_{1}.p.gz'.format(test_name, mock_name)
+        return os.path.join(os.path.dirname(mockproxy.__file__),
+                "stubs", file_name)
+
+    def _load_mock(self, name):
+        path = self._get_stub_file_path(self.id(), name)
+        if os.path.exists(path):
+            return pickle.load(gzip.open(path, 'rb'))
+        else:
+            return None
+
+    def _load_mock_or_create_proxy(self, module_name):
+        m = None
+        if not gen_test_mocks_key in os.environ or \
+                os.environ[gen_test_mocks_key].lower() \
+                    not in ['true', 'yes', '1']:
+            m = self._load_mock(module_name)
+        else:
+            module = __import__(module_name)
+            m = mockproxy.MockProxy(module)
+            self._mps[module_name] = m
+        return m
+
+    def _inject_mocks_in_modules(self, objects_to_mock, modules_to_test):
+        for module_name in objects_to_mock:
+            mp = self._load_mock_or_create_proxy(module_name)
+            for mt in modules_to_test:
+                module_local_name = module_name.split('.')[-1]
+                setattr(mt, module_local_name, mp)
+
+    def _save_mock_proxies(self):
+        for name, mp in self._mps.items():
+            m = mp.get_mock()
+            if m.has_values():
+                self._save_mock(name, m)
diff --git a/nova/tests/hyperv/db_fakes.py b/nova/tests/hyperv/db_fakes.py
new file mode 100644
index 000000000..9f5572fd1
--- /dev/null
+++ b/nova/tests/hyperv/db_fakes.py
@@ -0,0 +1,166 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+#  Copyright 2012 Cloudbase Solutions Srl
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Stubouts, mocks and fixtures for the test suite
+"""
+
+import time
+
+from nova.compute import task_states
+from nova.compute import vm_states
+from nova import db
+from nova import utils
+
+
+def get_fake_instance_data(name, project_id, user_id):
+    return {'name': name,
+              'id': 1,
+              'uuid': utils.gen_uuid(),
+              'project_id': project_id,
+              'user_id': user_id,
+              'image_ref': "1",
+              'kernel_id': "1",
+              'ramdisk_id': "1",
+              'mac_address': "de:ad:be:ef:be:ef",
+              'instance_type': 'm1.tiny',
+              }
+
+
+def get_fake_image_data(project_id, user_id):
+    return {'name': 'image1',
+              'id': 1,
+              'project_id': project_id,
+              'user_id': user_id,
+              'image_ref': "1",
+              'kernel_id': "1",
+              'ramdisk_id': "1",
+              'mac_address': "de:ad:be:ef:be:ef",
+              'instance_type': 'm1.tiny',
+              }
+
+
+def get_fake_volume_info_data(target_portal, volume_id):
+    return {
+        'driver_volume_type': 'iscsi',
+        'data': {
+            'volume_id': 1,
+            'target_iqn': 'iqn.2010-10.org.openstack:volume-' + volume_id,
+            'target_portal': target_portal,
+            'target_lun': 1,
+            'auth_method': 'CHAP',
+            'auth_method': 'fake',
+            'auth_method': 'fake',
+        }
+}
+
+
+def get_fake_block_device_info(target_portal, volume_id):
+    return {
+            'block_device_mapping': [{'connection_info': {
+                'driver_volume_type': 'iscsi',
+                'data': {'target_lun': 1,
+                         'volume_id': volume_id,
+                         'target_iqn': 'iqn.2010-10.org.openstack:volume-' +
+                            volume_id,
+                         'target_portal': target_portal,
+                         'target_discovered': False}},
+                'mount_device': 'vda',
+                'delete_on_termination': False}],
+            'root_device_name': None,
+            'ephemerals': [],
+            'swap': None
+    }
+
+
+def stub_out_db_instance_api(stubs):
+    """Stubs out the db API for creating Instances."""
+
+    INSTANCE_TYPES = {
+        'm1.tiny': dict(memory_mb=512, vcpus=1, root_gb=0, flavorid=1),
+        'm1.small': dict(memory_mb=2048, vcpus=1, root_gb=20, flavorid=2),
+        'm1.medium':
+            dict(memory_mb=4096, vcpus=2, root_gb=40, flavorid=3),
+        'm1.large': dict(memory_mb=8192, vcpus=4, root_gb=80, flavorid=4),
+        'm1.xlarge':
+            dict(memory_mb=16384, vcpus=8, root_gb=160, flavorid=5)}
+
+    class FakeModel(object):
+        """Stubs out for model."""
+
+        def __init__(self, values):
+            self.values = values
+
+        def __getattr__(self, name):
+            return self.values[name]
+
+        def __getitem__(self, key):
+            if key in self.values:
+                return self.values[key]
+            else:
+                raise NotImplementedError()
+
+    def fake_instance_create(context, values):
+        """Stubs out the db.instance_create method."""
+
+        if 'instance_type' not in values:
+            return
+
+        type_data = INSTANCE_TYPES[values['instance_type']]
+
+        base_options = {
+            'name': values['name'],
+            'id': values['id'],
+            'uuid': utils.gen_uuid(),
+            'reservation_id': utils.generate_uid('r'),
+            'image_ref': values['image_ref'],
+            'kernel_id': values['kernel_id'],
+            'ramdisk_id': values['ramdisk_id'],
+            'vm_state': vm_states.BUILDING,
+            'task_state': task_states.SCHEDULING,
+            'user_id': values['user_id'],
+            'project_id': values['project_id'],
+            'launch_time': time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime()),
+            'instance_type': values['instance_type'],
+            'memory_mb': type_data['memory_mb'],
+            'vcpus': type_data['vcpus'],
+            'mac_addresses': [{'address': values['mac_address']}],
+            'root_gb': type_data['root_gb'],
+            }
+        return FakeModel(base_options)
+
+    def fake_network_get_by_instance(context, instance_id):
+        """Stubs out the db.network_get_by_instance method."""
+
+        fields = {
+            'bridge': 'vmnet0',
+            'netmask': '255.255.255.0',
+            'gateway': '10.10.10.1',
+            'broadcast': '10.10.10.255',
+            'dns1': 'fake',
+            'vlan': 100}
+        return FakeModel(fields)
+
+    def fake_instance_type_get_all(context, inactive=0, filters=None):
+        return INSTANCE_TYPES.values()
+
+    def fake_instance_type_get_by_name(context, name):
+        return INSTANCE_TYPES[name]
+
+    stubs.Set(db, 'instance_create', fake_instance_create)
+    stubs.Set(db, 'network_get_by_instance', fake_network_get_by_instance)
+    stubs.Set(db, 'instance_type_get_all', fake_instance_type_get_all)
+    stubs.Set(db, 'instance_type_get_by_name', fake_instance_type_get_by_name)
diff --git a/nova/tests/hyperv/hypervutils.py b/nova/tests/hyperv/hypervutils.py
new file mode 100644
index 000000000..7cf9f32fe
--- /dev/null
+++ b/nova/tests/hyperv/hypervutils.py
@@ -0,0 +1,245 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+#  Copyright 2012 Cloudbase Solutions Srl
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Hyper-V classes to be used in testing.
+"""
+
+import sys
+import time
+
+from nova import exception
+from nova.virt.hyperv import constants
+from nova.virt.hyperv import volumeutils
+from xml.etree import ElementTree
+
+# Check needed for unit testing on Unix
+if sys.platform == 'win32':
+    import wmi
+
+
+class HyperVUtils(object):
+    def __init__(self):
+        self.__conn = None
+        self.__conn_v2 = None
+        self.__conn_cimv2 = None
+        self.__conn_wmi = None
+        self._volumeutils = volumeutils.VolumeUtils()
+
+    @property
+    def _conn(self):
+        if self.__conn is None:
+            self.__conn = wmi.WMI(moniker='//./root/virtualization')
+        return self.__conn
+
+    @property
+    def _conn_v2(self):
+        if self.__conn_v2 is None:
+            self.__conn_v2 = wmi.WMI(moniker='//./root/virtualization/v2')
+        return self.__conn_v2
+
+    @property
+    def _conn_cimv2(self):
+        if self.__conn_cimv2 is None:
+            self.__conn_cimv2 = wmi.WMI(moniker='//./root/cimv2')
+        return self.__conn_cimv2
+
+    @property
+    def _conn_wmi(self):
+        if self.__conn_wmi is None:
+            self.__conn_wmi = wmi.WMI(moniker='//./root/wmi')
+        return self.__conn_wmi
+
+    def create_vhd(self, path):
+        image_service = self._conn.query(
+            "Select * from Msvm_ImageManagementService")[0]
+        (job, ret_val) = image_service.CreateDynamicVirtualHardDisk(
+                Path=path, MaxInternalSize=3 * 1024 * 1024)
+
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self._check_job_status(job)
+        else:
+            success = (ret_val == 0)
+        if not success:
+            raise Exception('Failed to create Dynamic disk %s with error %d'
+                    % (path, ret_val))
+
+    def _check_job_status(self, jobpath):
+        """Poll WMI job state for completion"""
+        job_wmi_path = jobpath.replace('\\', '/')
+        job = wmi.WMI(moniker=job_wmi_path)
+
+        while job.JobState == constants.WMI_JOB_STATE_RUNNING:
+            time.sleep(0.1)
+            job = wmi.WMI(moniker=job_wmi_path)
+        return job.JobState == constants.WMI_JOB_STATE_COMPLETED
+
+    def _get_vm(self, vm_name, conn=None):
+        if conn is None:
+            conn = self._conn
+        vml = conn.Msvm_ComputerSystem(ElementName=vm_name)
+        if not len(vml):
+            raise exception.InstanceNotFound(instance=vm_name)
+        return vml[0]
+
+    def remote_vm_exists(self, server, vm_name):
+        conn = wmi.WMI(moniker='//' + server + '/root/virtualization')
+        return self._vm_exists(conn, vm_name)
+
+    def vm_exists(self, vm_name):
+        return self._vm_exists(self._conn, vm_name)
+
+    def _vm_exists(self, conn, vm_name):
+        return len(conn.Msvm_ComputerSystem(ElementName=vm_name)) > 0
+
+    def _get_vm_summary(self, vm_name):
+        vm = self._get_vm(vm_name)
+        vs_man_svc = self._conn.Msvm_VirtualSystemManagementService()[0]
+        vmsettings = vm.associators(
+                       wmi_association_class='Msvm_SettingsDefineState',
+                       wmi_result_class='Msvm_VirtualSystemSettingData')
+        settings_paths = [v.path_() for v in vmsettings]
+        return vs_man_svc.GetSummaryInformation([100, 105],
+            settings_paths)[1][0]
+
+    def get_vm_uptime(self, vm_name):
+        return self._get_vm_summary(vm_name).UpTime
+
+    def get_vm_state(self, vm_name):
+        return self._get_vm_summary(vm_name).EnabledState
+
+    def set_vm_state(self, vm_name, req_state):
+        self._set_vm_state(self._conn, vm_name, req_state)
+
+    def _set_vm_state(self, conn, vm_name, req_state):
+        vm = self._get_vm(vm_name, conn)
+        (job, ret_val) = vm.RequestStateChange(req_state)
+
+        success = False
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self._check_job_status(job)
+        elif ret_val == 0:
+            success = True
+        elif ret_val == 32775:
+            #Invalid state for current operation. Typically means it is
+            #already in the state requested
+            success = True
+        if not success:
+            raise Exception(_("Failed to change vm state of %(vm_name)s"
+                    " to %(req_state)s") % locals())
+
+    def get_vm_disks(self, vm_name):
+        return self._get_vm_disks(self._conn, vm_name)
+
+    def _get_vm_disks(self, conn, vm_name):
+        vm = self._get_vm(vm_name, conn)
+        vmsettings = vm.associators(
+            wmi_result_class='Msvm_VirtualSystemSettingData')
+        rasds = vmsettings[0].associators(
+            wmi_result_class='MSVM_ResourceAllocationSettingData')
+
+        disks = [r for r in rasds
+            if r.ResourceSubType == 'Microsoft Virtual Hard Disk']
+        disk_files = []
+        for disk in disks:
+            disk_files.extend([c for c in disk.Connection])
+
+        volumes = [r for r in rasds
+            if r.ResourceSubType == 'Microsoft Physical Disk Drive']
+        volume_drives = []
+        for volume in volumes:
+            hostResources = volume.HostResource
+            drive_path = hostResources[0]
+            volume_drives.append(drive_path)
+
+        return (disk_files, volume_drives)
+
+    def remove_remote_vm(self, server, vm_name):
+        conn = wmi.WMI(moniker='//' + server + '/root/virtualization')
+        conn_cimv2 = wmi.WMI(moniker='//' + server + '/root/cimv2')
+        self._remove_vm(vm_name, conn, conn_cimv2)
+
+    def remove_vm(self, vm_name):
+        self._remove_vm(vm_name, self._conn, self._conn_cimv2)
+
+    def _remove_vm(self, vm_name, conn, conn_cimv2):
+        vm = self._get_vm(vm_name, conn)
+        vs_man_svc = conn.Msvm_VirtualSystemManagementService()[0]
+        #Stop the VM first.
+        self._set_vm_state(conn, vm_name, 3)
+
+        (disk_files, volume_drives) = self._get_vm_disks(conn, vm_name)
+
+        (job, ret_val) = vs_man_svc.DestroyVirtualSystem(vm.path_())
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self._check_job_status(job)
+        elif ret_val == 0:
+            success = True
+        if not success:
+            raise Exception(_('Failed to destroy vm %s') % vm_name)
+
+        #Delete associated vhd disk files.
+        for disk in disk_files:
+            vhd_file = conn_cimv2.query(
+            "Select * from CIM_DataFile where Name = '" +
+                disk.replace("'", "''") + "'")[0]
+            vhd_file.Delete()
+
+    def _get_target_iqn(self, volume_id):
+        return 'iqn.2010-10.org.openstack:volume-' + volume_id
+
+    def logout_iscsi_volume_sessions(self, volume_id):
+        target_iqn = self._get_target_iqn(volume_id)
+        self._volumeutils.logout_storage_target(self._conn_wmi, target_iqn)
+
+    def iscsi_volume_sessions_exist(self, volume_id):
+        target_iqn = self._get_target_iqn(volume_id)
+        return len(self._conn_wmi.query(
+                    "SELECT * FROM MSiSCSIInitiator_SessionClass \
+                    WHERE TargetName='" + target_iqn + "'")) > 0
+
+    def get_vm_count(self):
+        return len(self._conn.query(
+            "Select * from Msvm_ComputerSystem where Description "
+            "<> 'Microsoft Hosting Computer System'"))
+
+    def get_vm_snapshots_count(self, vm_name):
+        return len(self._conn.query(
+                "Select * from Msvm_VirtualSystemSettingData where \
+                SettingType = 5 and SystemName = '" + vm_name + "'"))
+
+    def get_vhd_parent_path(self, vhd_path):
+
+        image_man_svc = self._conn.Msvm_ImageManagementService()[0]
+
+        (vhd_info, job_path, ret_val) = \
+            image_man_svc.GetVirtualHardDiskInfo(vhd_path)
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self._check_job_status(job_path)
+        else:
+            success = (ret_val == 0)
+        if not success:
+                raise Exception(_("Failed to get info for disk %s") %
+                    (vhd_path))
+
+        base_disk_path = None
+        et = ElementTree.fromstring(vhd_info)
+        for item in et.findall("PROPERTY"):
+            if item.attrib["NAME"] == "ParentPath":
+                base_disk_path = item.find("VALUE").text
+                break
+
+        return base_disk_path
diff --git a/nova/tests/hyperv/mockproxy.py b/nova/tests/hyperv/mockproxy.py
new file mode 100644
index 000000000..ff04ea709
--- /dev/null
+++ b/nova/tests/hyperv/mockproxy.py
@@ -0,0 +1,234 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+#  Copyright 2012 Cloudbase Solutions Srl
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+
+"""
+Classes for dynamic generation of mock objects.
+"""
+
+import inspect
+
+
+def serialize_obj(obj):
+    if isinstance(obj, float):
+        val = str(round(obj, 10))
+    elif isinstance(obj, dict):
+        d = {}
+        for k1, v1 in obj.items():
+            d[k1] = serialize_obj(v1)
+        val = str(d)
+    elif isinstance(obj, list):
+        l1 = []
+        for i1 in obj:
+            l1.append(serialize_obj(i1))
+        val = str(l1)
+    elif isinstance(obj, tuple):
+        l1 = ()
+        for i1 in obj:
+            l1 = l1 + (serialize_obj(i1),)
+        val = str(l1)
+    else:
+        val = str(obj)
+    return val
+
+
+def serialize_args(*args, **kwargs):
+    """Workaround for float string conversion issues in Python 2.6"""
+    return serialize_obj((args, kwargs))
+
+
+class Mock(object):
+    def _get_next_value(self, name):
+        c = self._access_count.get(name)
+        if c is None:
+            c = 0
+        else:
+            c = c + 1
+        self._access_count[name] = c
+        return self._values[name][c]
+
+    def _get_next_ret_value(self, name, params):
+        d = self._access_count.get(name)
+        if d is None:
+            d = {}
+            self._access_count[name] = d
+        c = d.get(params)
+        if c is None:
+            c = 0
+        else:
+            c = c + 1
+        d[params] = c
+        return self._values[name][params][c]
+
+    def __init__(self, values):
+        self._values = values
+        self._access_count = {}
+
+    def has_values(self):
+        return len(self._values) > 0
+
+    def __getattr__(self, name):
+        if name.startswith('__') and name.endswith('__'):
+            return object.__getattribute__(self, name)
+        else:
+            if isinstance(self._values[name], dict):
+                def newfunc(*args, **kwargs):
+                    params = serialize_args(args, kwargs)
+                    return self._get_next_ret_value(name, params)
+                return newfunc
+            else:
+                return self._get_next_value(name)
+
+    def __str__(self):
+        return self._get_next_value('__str__')
+
+    def __iter__(self):
+        return getattr(self._get_next_value('__iter__'), '__iter__')()
+
+    def __len__(self):
+        return self._get_next_value('__len__')
+
+    def __getitem__(self, key):
+        return self._get_next_ret_value('__getitem__', str(key))
+
+    def __call__(self, *args, **kwargs):
+        params = serialize_args(args, kwargs)
+        return self._get_next_ret_value('__call__', params)
+
+
+class MockProxy(object):
+    def __init__(self, wrapped):
+        self._wrapped = wrapped
+        self._recorded_values = {}
+
+    def _get_proxy_object(self, obj):
+        if hasattr(obj, '__dict__') or isinstance(obj, tuple) or \
+            isinstance(obj, list) or isinstance(obj, dict):
+            p = MockProxy(obj)
+        else:
+            p = obj
+        return p
+
+    def __getattr__(self, name):
+        if name in ['_wrapped']:
+            return object.__getattribute__(self, name)
+        else:
+            attr = getattr(self._wrapped, name)
+            if inspect.isfunction(attr) or inspect.ismethod(attr) or \
+                inspect.isbuiltin(attr):
+                def newfunc(*args, **kwargs):
+                    result = attr(*args, **kwargs)
+                    p = self._get_proxy_object(result)
+                    params = serialize_args(args, kwargs)
+                    self._add_recorded_ret_value(name, params, p)
+                    return p
+                return newfunc
+            elif hasattr(attr, '__dict__') or (hasattr(attr, '__getitem__')
+                and not (isinstance(attr, str) or isinstance(attr, unicode))):
+                p = MockProxy(attr)
+            else:
+                p = attr
+            self._add_recorded_value(name, p)
+            return p
+
+    def __setattr__(self, name, value):
+        if name in ['_wrapped', '_recorded_values']:
+            object.__setattr__(self, name, value)
+        else:
+            setattr(self._wrapped, name, value)
+
+    def _add_recorded_ret_value(self, name, params, val):
+        d = self._recorded_values.get(name)
+        if d is None:
+            d = {}
+            self._recorded_values[name] = d
+        l = d.get(params)
+        if l is None:
+            l = []
+            d[params] = l
+        l.append(val)
+
+    def _add_recorded_value(self, name, val):
+        if not name in self._recorded_values:
+            self._recorded_values[name] = []
+        self._recorded_values[name].append(val)
+
+    def get_mock(self):
+        values = {}
+        for k, v in self._recorded_values.items():
+            if isinstance(v, dict):
+                d = {}
+                values[k] = d
+                for k1, v1 in v.items():
+                    l = []
+                    d[k1] = l
+                    for i1 in v1:
+                        if isinstance(i1, MockProxy):
+                            l.append(i1.get_mock())
+                        else:
+                            l.append(i1)
+            else:
+                l = []
+                values[k] = l
+                for i in v:
+                    if isinstance(i, MockProxy):
+                        l.append(i.get_mock())
+                    elif isinstance(i, dict):
+                        d = {}
+                        for k1, v1 in v.items():
+                            if isinstance(v1, MockProxy):
+                                d[k1] = v1.get_mock()
+                            else:
+                                d[k1] = v1
+                        l.append(d)
+                    elif isinstance(i, list):
+                        l1 = []
+                        for i1 in i:
+                            if isinstance(i1, MockProxy):
+                                l1.append(i1.get_mock())
+                            else:
+                                l1.append(i1)
+                        l.append(l1)
+                    else:
+                        l.append(i)
+        return Mock(values)
+
+    def __str__(self):
+        s = str(self._wrapped)
+        self._add_recorded_value('__str__', s)
+        return s
+
+    def __len__(self):
+        l = len(self._wrapped)
+        self._add_recorded_value('__len__', l)
+        return l
+
+    def __iter__(self):
+        it = []
+        for i in self._wrapped:
+            it.append(self._get_proxy_object(i))
+        self._add_recorded_value('__iter__', it)
+        return iter(it)
+
+    def __getitem__(self, key):
+        p = self._get_proxy_object(self._wrapped[key])
+        self._add_recorded_ret_value('__getitem__', str(key), p)
+        return p
+
+    def __call__(self, *args, **kwargs):
+        c = self._wrapped(*args, **kwargs)
+        p = self._get_proxy_object(c)
+        params = serialize_args(args, kwargs)
+        self._add_recorded_ret_value('__call__', params, p)
+        return p
diff --git a/nova/tests/hyperv/stubs/README.rst b/nova/tests/hyperv/stubs/README.rst
new file mode 100644
index 000000000..150fd3ad1
--- /dev/null
+++ b/nova/tests/hyperv/stubs/README.rst
@@ -0,0 +1,2 @@
+Files with extension p.gz are compressed pickle files containing serialized
+mocks used during unit testing
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_os.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_os.p.gz
new file mode 100644
index 000000000..c65832c57
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diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_subprocess.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_subprocess.p.gz
new file mode 100644
index 000000000..7076c4868
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diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_time.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_time.p.gz
new file mode 100644
index 000000000..c251f9d6c
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diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_uuid.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_uuid.p.gz
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index 000000000..cac08e3d0
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diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_os.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_os.p.gz
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diff --git a/nova/tests/test_hypervapi.py b/nova/tests/test_hypervapi.py
new file mode 100644
index 000000000..8c4296dd3
--- /dev/null
+++ b/nova/tests/test_hypervapi.py
@@ -0,0 +1,463 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+#  Copyright 2012 Cloudbase Solutions Srl
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Test suite for the Hyper-V driver and related APIs.
+"""
+
+import os
+import shutil
+import sys
+import uuid
+
+from nova.compute import power_state
+from nova import context
+from nova import db
+from nova import flags
+from nova.image import glance
+from nova.tests import fake_network
+from nova.tests.hyperv import basetestcase
+from nova.tests.hyperv import db_fakes
+from nova.tests.hyperv import hypervutils
+from nova.tests.hyperv import mockproxy
+import nova.tests.image.fake as fake_image
+from nova.virt.hyperv import constants
+from nova.virt.hyperv import driver as driver_hyperv
+from nova.virt.hyperv import vmutils
+from nova.virt import images
+
+
+class HyperVAPITestCase(basetestcase.BaseTestCase):
+    """Unit tests for Hyper-V driver calls."""
+
+    def setUp(self):
+        super(HyperVAPITestCase, self).setUp()
+
+        self._user_id = 'fake'
+        self._project_id = 'fake'
+        self._instance_data = None
+        self._image_metadata = None
+        self._dest_server = None
+        self._fetched_image = None
+        self._update_image_raise_exception = False
+        self._post_method_called = False
+        self._recover_method_called = False
+        self._volume_target_portal = '192.168.1.112:3260'
+        self._volume_id = '10958016-e196-42e3-9e7f-5d8927ae3099'
+        self._context = context.RequestContext(self._user_id, self._project_id)
+
+        self._setup_stubs()
+
+        self.flags(instances_path=r'C:\Hyper-V\test\instances',
+                        vswitch_name='external')
+
+        self._hypervutils = hypervutils.HyperVUtils()
+        self._conn = driver_hyperv.HyperVDriver()
+
+    def _setup_stubs(self):
+        db_fakes.stub_out_db_instance_api(self.stubs)
+        fake_image.stub_out_image_service(self.stubs)
+
+        def fake_fetch(context, image_id, target, user, project):
+            self._fetched_image = target
+            if not os.path.exists(target):
+                self._hypervutils.create_vhd(target)
+        self.stubs.Set(images, 'fetch', fake_fetch)
+
+        def fake_get_remote_image_service(context, name):
+            class FakeGlanceImageService(object):
+                def update(self_fake, context, image_id, image_metadata, f):
+                    if self._update_image_raise_exception:
+                        raise vmutils.HyperVException(
+                            "Simulated update failure")
+                    self._image_metadata = image_metadata
+            return (FakeGlanceImageService(), 1)
+        self.stubs.Set(glance, 'get_remote_image_service',
+            fake_get_remote_image_service)
+
+        # Modules to mock
+        modules_to_mock = [
+            'wmi',
+            'os',
+            'shutil',
+            'uuid',
+            'time',
+            'subprocess',
+            'multiprocessing',
+            '_winreg'
+        ]
+
+        # Modules in which the mocks are going to be injected
+        from nova.virt.hyperv import baseops
+        from nova.virt.hyperv import livemigrationops
+        from nova.virt.hyperv import snapshotops
+        from nova.virt.hyperv import vmops
+        from nova.virt.hyperv import volumeops
+        from nova.virt.hyperv import volumeutils
+
+        modules_to_test = [
+            driver_hyperv,
+            baseops,
+            vmops,
+            vmutils,
+            volumeops,
+            volumeutils,
+            snapshotops,
+            livemigrationops,
+            hypervutils,
+            sys.modules[__name__]
+        ]
+
+        self._inject_mocks_in_modules(modules_to_mock, modules_to_test)
+
+        if isinstance(snapshotops.wmi, mockproxy.Mock):
+            from nova.virt.hyperv import ioutils
+            import StringIO
+
+            def fake_open(name, mode):
+                return StringIO.StringIO("fake file content")
+            self.stubs.Set(ioutils, 'open', fake_open)
+
+    def tearDown(self):
+        try:
+            if self._instance_data and self._hypervutils.vm_exists(
+                    self._instance_data["name"]):
+                self._hypervutils.remove_vm(self._instance_data["name"])
+
+            if self._dest_server and \
+                    self._hypervutils.remote_vm_exists(self._dest_server,
+                        self._instance_data["name"]):
+                self._hypervutils.remove_remote_vm(self._dest_server,
+                    self._instance_data["name"])
+
+            self._hypervutils.logout_iscsi_volume_sessions(self._volume_id)
+
+            shutil.rmtree(flags.FLAGS.instances_path, True)
+
+            fake_image.FakeImageService_reset()
+        finally:
+            super(HyperVAPITestCase, self).tearDown()
+
+    def test_list_instances(self):
+        num_vms = self._hypervutils.get_vm_count()
+        instances = self._conn.list_instances()
+
+        self.assertEquals(len(instances), num_vms)
+
+    def test_get_info(self):
+        self._spawn_instance(True)
+        info = self._conn.get_info(self._instance_data)
+
+        self.assertEquals(info["state"], str(power_state.RUNNING))
+
+    def test_spawn_cow_image(self):
+        self._test_spawn_instance(True)
+
+    def test_spawn_no_cow_image(self):
+        self._test_spawn_instance(False)
+
+    def test_spawn_no_vswitch_exception(self):
+        # Set flag to a non existing vswitch
+        self.flags(vswitch_name=str(uuid.uuid4()))
+        self.assertRaises(vmutils.HyperVException, self._spawn_instance, True)
+
+        self.assertFalse(self._hypervutils.vm_exists(
+            self._instance_data["name"]))
+
+    def _test_vm_state_change(self, action, from_state, to_state):
+        self._spawn_instance(True)
+        if from_state:
+            self._hypervutils.set_vm_state(self._instance_data["name"],
+                from_state)
+        action(self._instance_data)
+
+        vmstate = self._hypervutils.get_vm_state(self._instance_data["name"])
+        self.assertEquals(vmstate, to_state)
+
+    def test_pause(self):
+        self._test_vm_state_change(self._conn.pause, None,
+            constants.HYPERV_VM_STATE_PAUSED)
+
+    def test_pause_already_paused(self):
+        self._test_vm_state_change(self._conn.pause,
+            constants.HYPERV_VM_STATE_PAUSED,
+            constants.HYPERV_VM_STATE_PAUSED)
+
+    def test_unpause(self):
+        self._test_vm_state_change(self._conn.unpause,
+            constants.HYPERV_VM_STATE_PAUSED,
+            constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_unpause_already_running(self):
+        self._test_vm_state_change(self._conn.unpause, None,
+            constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_suspend(self):
+        self._test_vm_state_change(self._conn.suspend, None,
+                constants.HYPERV_VM_STATE_SUSPENDED)
+
+    def test_suspend_already_suspended(self):
+        self._test_vm_state_change(self._conn.suspend,
+                constants.HYPERV_VM_STATE_SUSPENDED,
+                constants.HYPERV_VM_STATE_SUSPENDED)
+
+    def test_resume(self):
+        self._test_vm_state_change(self._conn.resume,
+            constants.HYPERV_VM_STATE_SUSPENDED,
+            constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_resume_already_running(self):
+        self._test_vm_state_change(self._conn.resume, None,
+            constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_power_off(self):
+        self._test_vm_state_change(self._conn.power_off, None,
+            constants.HYPERV_VM_STATE_DISABLED)
+
+    def test_power_off_already_powered_off(self):
+        self._test_vm_state_change(self._conn.suspend,
+            constants.HYPERV_VM_STATE_DISABLED,
+            constants.HYPERV_VM_STATE_DISABLED)
+
+    def test_power_on(self):
+        self._test_vm_state_change(self._conn.power_on,
+            constants.HYPERV_VM_STATE_DISABLED,
+            constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_power_on_already_running(self):
+        self._test_vm_state_change(self._conn.power_on, None,
+            constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_reboot(self):
+        self._spawn_instance(True)
+
+        network_info = fake_network.fake_get_instance_nw_info(self.stubs,
+                                                              spectacular=True)
+        self._conn.reboot(self._instance_data, network_info, None)
+
+        vmstate = self._hypervutils.get_vm_state(self._instance_data["name"])
+        self.assertEquals(vmstate, constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_destroy(self):
+        self._spawn_instance(True)
+        (vhd_paths, _) = self._hypervutils.get_vm_disks(
+            self._instance_data["name"])
+
+        self._conn.destroy(self._instance_data)
+
+        self.assertFalse(self._hypervutils.vm_exists(
+            self._instance_data["name"]))
+        self._instance_data = None
+
+        for vhd_path in vhd_paths:
+            self.assertFalse(os.path.exists(vhd_path))
+
+    def test_live_migration(self):
+        self.flags(limit_cpu_features=True)
+        self._spawn_instance(False)
+
+        # Existing server
+        self._dest_server = "HV12RCTest1"
+
+        self._live_migration(self._dest_server)
+
+        instance_name = self._instance_data["name"]
+        self.assertFalse(self._hypervutils.vm_exists(instance_name))
+        self.assertTrue(self._hypervutils.remote_vm_exists(self._dest_server,
+            instance_name))
+
+        self.assertTrue(self._post_method_called)
+        self.assertFalse(self._recover_method_called)
+
+    def test_live_migration_with_target_failure(self):
+        self.flags(limit_cpu_features=True)
+        self._spawn_instance(False)
+
+        dest_server = "nonexistingserver"
+
+        exception_raised = False
+        try:
+            self._live_migration(dest_server)
+        except Exception:
+            exception_raised = True
+
+        # Cannot use assertRaises with pythoncom.com_error on Linux
+        self.assertTrue(exception_raised)
+
+        instance_name = self._instance_data["name"]
+        self.assertTrue(self._hypervutils.vm_exists(instance_name))
+
+        self.assertFalse(self._post_method_called)
+        self.assertTrue(self._recover_method_called)
+
+    def _live_migration(self, dest_server):
+        def fake_post_method(context, instance_ref, dest, block_migration):
+                self._post_method_called = True
+
+        def fake_recover_method(context, instance_ref, dest, block_migration):
+            self._recover_method_called = True
+
+        self._conn.live_migration(self._context, self._instance_data,
+            dest_server, fake_post_method, fake_recover_method)
+
+    def test_pre_live_migration_cow_image(self):
+        self._test_pre_live_migration(True)
+
+    def test_pre_live_migration_no_cow_image(self):
+        self._test_pre_live_migration(False)
+
+    def _test_pre_live_migration(self, cow):
+        self.flags(use_cow_images=cow)
+
+        instance_name = 'openstack_unit_test_vm_' + str(uuid.uuid4())
+
+        network_info = fake_network.fake_get_instance_nw_info(self.stubs,
+                                                              spectacular=True)
+        instance_data = db_fakes.get_fake_instance_data(instance_name,
+            self._project_id, self._user_id)
+        block_device_info = None
+
+        self._conn.pre_live_migration(self._context, instance_data,
+            block_device_info, network_info)
+
+        if cow:
+            self.assertTrue(not self._fetched_image is None)
+        else:
+            self.assertTrue(self._fetched_image is None)
+
+    def test_snapshot_with_update_failure(self):
+        self._spawn_instance(True)
+
+        self._update_image_raise_exception = True
+        snapshot_name = 'test_snapshot_' + str(uuid.uuid4())
+        self.assertRaises(vmutils.HyperVException, self._conn.snapshot,
+            self._context, self._instance_data, snapshot_name)
+
+        # assert VM snapshots have been removed
+        self.assertEquals(self._hypervutils.get_vm_snapshots_count(
+            self._instance_data["name"]), 0)
+
+    def test_snapshot(self):
+        self._spawn_instance(True)
+
+        snapshot_name = 'test_snapshot_' + str(uuid.uuid4())
+        self._conn.snapshot(self._context, self._instance_data, snapshot_name)
+
+        self.assertTrue(self._image_metadata and
+                "disk_format" in self._image_metadata and
+                self._image_metadata["disk_format"] == "vhd")
+
+        # assert VM snapshots have been removed
+        self.assertEquals(self._hypervutils.get_vm_snapshots_count(
+            self._instance_data["name"]), 0)
+
+    def _spawn_instance(self, cow, block_device_info=None):
+        self.flags(use_cow_images=cow)
+
+        instance_name = 'openstack_unit_test_vm_' + str(uuid.uuid4())
+
+        self._instance_data = db_fakes.get_fake_instance_data(instance_name,
+                self._project_id, self._user_id)
+        instance = db.instance_create(self._context, self._instance_data)
+
+        image = db_fakes.get_fake_image_data(self._project_id, self._user_id)
+
+        network_info = fake_network.fake_get_instance_nw_info(self.stubs,
+                                                              spectacular=True)
+
+        self._conn.spawn(self._context, instance, image, network_info,
+            block_device_info)
+
+    def _test_spawn_instance(self, cow):
+        self._spawn_instance(cow)
+
+        self.assertTrue(self._hypervutils.vm_exists(
+            self._instance_data["name"]))
+
+        vmstate = self._hypervutils.get_vm_state(self._instance_data["name"])
+        self.assertEquals(vmstate, constants.HYPERV_VM_STATE_ENABLED)
+
+        (vhd_paths, _) = self._hypervutils.get_vm_disks(
+            self._instance_data["name"])
+        self.assertEquals(len(vhd_paths), 1)
+
+        parent_path = self._hypervutils.get_vhd_parent_path(vhd_paths[0])
+        if cow:
+            self.assertTrue(not parent_path is None)
+            self.assertEquals(self._fetched_image, parent_path)
+        else:
+            self.assertTrue(parent_path is None)
+            self.assertEquals(self._fetched_image, vhd_paths[0])
+
+    def _attach_volume(self):
+        self._spawn_instance(True)
+        connection_info = db_fakes.get_fake_volume_info_data(
+            self._volume_target_portal, self._volume_id)
+
+        self._conn.attach_volume(connection_info,
+            self._instance_data["name"], '/dev/sdc')
+
+    def test_attach_volume(self):
+        self._attach_volume()
+
+        (_, volumes_paths) = self._hypervutils.get_vm_disks(
+            self._instance_data["name"])
+        self.assertEquals(len(volumes_paths), 1)
+
+        sessions_exist = self._hypervutils.iscsi_volume_sessions_exist(
+            self._volume_id)
+        self.assertTrue(sessions_exist)
+
+    def test_detach_volume(self):
+        self._attach_volume()
+        connection_info = db_fakes.get_fake_volume_info_data(
+            self._volume_target_portal, self._volume_id)
+
+        self._conn.detach_volume(connection_info,
+            self._instance_data["name"], '/dev/sdc')
+
+        (_, volumes_paths) = self._hypervutils.get_vm_disks(
+            self._instance_data["name"])
+        self.assertEquals(len(volumes_paths), 0)
+
+        sessions_exist = self._hypervutils.iscsi_volume_sessions_exist(
+            self._volume_id)
+        self.assertFalse(sessions_exist)
+
+    def test_boot_from_volume(self):
+        block_device_info = db_fakes.get_fake_block_device_info(
+            self._volume_target_portal, self._volume_id)
+
+        self._spawn_instance(False, block_device_info)
+
+        (_, volumes_paths) = self._hypervutils.get_vm_disks(
+            self._instance_data["name"])
+
+        self.assertEquals(len(volumes_paths), 1)
+
+        sessions_exist = self._hypervutils.iscsi_volume_sessions_exist(
+            self._volume_id)
+        self.assertTrue(sessions_exist)
+
+    def test_attach_volume_with_target_connection_failure(self):
+        self._spawn_instance(True)
+
+        target = 'nonexistingtarget:3260'
+        connection_info = db_fakes.get_fake_volume_info_data(target,
+            self._volume_id)
+
+        self.assertRaises(vmutils.HyperVException, self._conn.attach_volume,
+            connection_info, self._instance_data["name"], '/dev/sdc')
diff --git a/nova/virt/hyperv/README.rst b/nova/virt/hyperv/README.rst
new file mode 100644
index 000000000..c0609f310
--- /dev/null
+++ b/nova/virt/hyperv/README.rst
@@ -0,0 +1,44 @@
+Hyper-V Volumes Management
+=============================================
+
+To enable the  volume features, the first thing that needs to be done is to
+enable the iSCSI service on the Windows compute nodes and set it to start
+automatically.
+
+sc config msiscsi start= auto
+net start msiscsi
+
+In Windows Server 2012, it's important to execute the following commands to
+prevent having the volumes being online by default:
+
+diskpart
+san policy=OfflineAll
+exit
+
+How to check if your iSCSI configuration is working properly:
+
+On your OpenStack controller:
+
+1. Create a volume with e.g. "nova volume-create 1" and note the generated
+volume id
+
+On Windows:
+
+2. iscsicli QAddTargetPortal <your_iSCSI_target>
+3. iscsicli ListTargets
+
+The output should contain the iqn related to your volume:
+iqn.2010-10.org.openstack:volume-<volume_id>
+
+How to test Boot from volume in Hyper-V from the OpenStack dashboard:
+
+1. Fist of all create a volume
+2. Get the volume ID of the created volume
+3. Upload and untar to the Cloud controller the next VHD image:
+http://dev.opennebula.org/attachments/download/482/ttylinux.vhd.gz
+4. sudo dd if=/path/to/vhdfileofstep3 
+of=/dev/nova-volumes/volume-XXXXX <- Related to the ID of step 2
+5. Launch an instance from any image (this is not important because we are
+just booting from a volume) from the dashboard, and don't forget to select
+boot from volume and select the volume created in step2. Important: Device
+name must be "vda".
diff --git a/nova/virt/hyperv/__init__.py b/nova/virt/hyperv/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/nova/virt/hyperv/baseops.py b/nova/virt/hyperv/baseops.py
new file mode 100644
index 000000000..3d941a854
--- /dev/null
+++ b/nova/virt/hyperv/baseops.py
@@ -0,0 +1,61 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 Cloudbase Solutions Srl
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Management base class for Hyper-V operations.
+"""
+import sys
+
+from nova.openstack.common import log as logging
+
+# Check needed for unit testing on Unix
+if sys.platform == 'win32':
+    import wmi
+
+LOG = logging.getLogger(__name__)
+
+
+class BaseOps(object):
+    def __init__(self):
+        self.__conn = None
+        self.__conn_v2 = None
+        self.__conn_cimv2 = None
+        self.__conn_wmi = None
+
+    @property
+    def _conn(self):
+        if self.__conn is None:
+            self.__conn = wmi.WMI(moniker='//./root/virtualization')
+        return self.__conn
+
+    @property
+    def _conn_v2(self):
+        if self.__conn_v2 is None:
+            self.__conn_v2 = wmi.WMI(moniker='//./root/virtualization/v2')
+        return self.__conn_v2
+
+    @property
+    def _conn_cimv2(self):
+        if self.__conn_cimv2 is None:
+            self.__conn_cimv2 = wmi.WMI(moniker='//./root/cimv2')
+        return self.__conn_cimv2
+
+    @property
+    def _conn_wmi(self):
+        if self.__conn_wmi is None:
+            self.__conn_wmi = wmi.WMI(moniker='//./root/wmi')
+        return self.__conn_wmi
diff --git a/nova/virt/hyperv/constants.py b/nova/virt/hyperv/constants.py
new file mode 100644
index 000000000..392dcfa13
--- /dev/null
+++ b/nova/virt/hyperv/constants.py
@@ -0,0 +1,54 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 Cloudbase Solutions Srl
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Constants used in ops classes
+"""
+
+from nova.compute import power_state
+
+HYPERV_VM_STATE_ENABLED = 2
+HYPERV_VM_STATE_DISABLED = 3
+HYPERV_VM_STATE_REBOOT = 10
+HYPERV_VM_STATE_RESET = 11
+HYPERV_VM_STATE_PAUSED = 32768
+HYPERV_VM_STATE_SUSPENDED = 32769
+
+HYPERV_POWER_STATE = {
+    HYPERV_VM_STATE_DISABLED: power_state.SHUTDOWN,
+    HYPERV_VM_STATE_ENABLED: power_state.RUNNING,
+    HYPERV_VM_STATE_PAUSED: power_state.PAUSED,
+    HYPERV_VM_STATE_SUSPENDED: power_state.SUSPENDED
+}
+
+REQ_POWER_STATE = {
+    'Enabled': HYPERV_VM_STATE_ENABLED,
+    'Disabled': HYPERV_VM_STATE_DISABLED,
+    'Reboot': HYPERV_VM_STATE_REBOOT,
+    'Reset': HYPERV_VM_STATE_RESET,
+    'Paused': HYPERV_VM_STATE_PAUSED,
+    'Suspended': HYPERV_VM_STATE_SUSPENDED,
+}
+
+WMI_JOB_STATUS_STARTED = 4096
+WMI_JOB_STATE_RUNNING = 4
+WMI_JOB_STATE_COMPLETED = 7
+
+VM_SUMMARY_NUM_PROCS = 4
+VM_SUMMARY_ENABLED_STATE = 100
+VM_SUMMARY_MEMORY_USAGE = 103
+VM_SUMMARY_UPTIME = 105
diff --git a/nova/virt/hyperv/driver.py b/nova/virt/hyperv/driver.py
new file mode 100644
index 000000000..0a29c9426
--- /dev/null
+++ b/nova/virt/hyperv/driver.py
@@ -0,0 +1,226 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright (c) 2010 Cloud.com, Inc
+# Copyright (c) 2012 Cloudbase Solutions Srl
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+A connection to Hyper-V .
+Uses Windows Management Instrumentation (WMI) calls to interact with Hyper-V
+Hyper-V WMI usage:
+    http://msdn.microsoft.com/en-us/library/cc723875%28v=VS.85%29.aspx
+The Hyper-V object model briefly:
+    The physical computer and its hosted virtual machines are each represented
+    by the Msvm_ComputerSystem class.
+
+    Each virtual machine is associated with a
+    Msvm_VirtualSystemGlobalSettingData (vs_gs_data) instance and one or more
+    Msvm_VirtualSystemSettingData (vmsetting) instances. For each vmsetting
+    there is a series of Msvm_ResourceAllocationSettingData (rasd) objects.
+    The rasd objects describe the settings for each device in a VM.
+    Together, the vs_gs_data, vmsettings and rasds describe the configuration
+    of the virtual machine.
+
+    Creating new resources such as disks and nics involves cloning a default
+    rasd object and appropriately modifying the clone and calling the
+    AddVirtualSystemResources WMI method
+    Changing resources such as memory uses the ModifyVirtualSystemResources
+    WMI method
+
+Using the Python WMI library:
+    Tutorial:
+        http://timgolden.me.uk/python/wmi/tutorial.html
+    Hyper-V WMI objects can be retrieved simply by using the class name
+    of the WMI object and optionally specifying a column to filter the
+    result set. More complex filters can be formed using WQL (sql-like)
+    queries.
+    The parameters and return tuples of WMI method calls can gleaned by
+    examining the doc string. For example:
+    >>> vs_man_svc.ModifyVirtualSystemResources.__doc__
+    ModifyVirtualSystemResources (ComputerSystem, ResourceSettingData[])
+                 => (Job, ReturnValue)'
+    When passing setting data (ResourceSettingData) to the WMI method,
+    an XML representation of the data is passed in using GetText_(1).
+    Available methods on a service can be determined using method.keys():
+    >>> vs_man_svc.methods.keys()
+    vmsettings and rasds for a vm can be retrieved using the 'associators'
+    method with the appropriate return class.
+    Long running WMI commands generally return a Job (an instance of
+    Msvm_ConcreteJob) whose state can be polled to determine when it finishes
+
+"""
+
+from nova.openstack.common import log as logging
+from nova.virt import driver
+from nova.virt.hyperv import livemigrationops
+from nova.virt.hyperv import snapshotops
+from nova.virt.hyperv import vmops
+from nova.virt.hyperv import volumeops
+
+LOG = logging.getLogger(__name__)
+
+
+class HyperVDriver(driver.ComputeDriver):
+    def __init__(self):
+        super(HyperVDriver, self).__init__()
+
+        self._volumeops = volumeops.VolumeOps()
+        self._vmops = vmops.VMOps(self._volumeops)
+        self._snapshotops = snapshotops.SnapshotOps()
+        self._livemigrationops = livemigrationops.LiveMigrationOps(
+            self._volumeops)
+
+    def init_host(self, host):
+        self._host = host
+
+    def list_instances(self):
+        return self._vmops.list_instances()
+
+    def list_instances_detail(self):
+        return self._vmops.list_instances_detail()
+
+    def spawn(self, context, instance, image_meta, network_info,
+        block_device_info=None):
+        self._vmops.spawn(context, instance, image_meta, network_info,
+            block_device_info)
+
+    def reboot(self, instance, network_info, reboot_type):
+        self._vmops.reboot(instance, network_info, reboot_type)
+
+    def destroy(self, instance, network_info=None, cleanup=True):
+        self._vmops.destroy(instance, network_info, cleanup)
+
+    def get_info(self, instance):
+        return self._vmops.get_info(instance)
+
+    def attach_volume(self, connection_info, instance_name, mountpoint):
+        """Attach volume storage to VM instance"""
+        return self._volumeops.attach_volume(connection_info,
+                                             instance_name,
+                                             mountpoint)
+
+    def detach_volume(self, connection_info, instance_name, mountpoint):
+        """Detach volume storage to VM instance"""
+        return self._volumeops.detach_volume(connection_info,
+                                             instance_name,
+                                             mountpoint)
+
+    def get_volume_connector(self, instance):
+        return self._volumeops.get_volume_connector(instance)
+
+    def poll_rescued_instances(self, timeout):
+        pass
+
+    def update_available_resource(self, context, host):
+        self._vmops.update_available_resource(context, host)
+
+    def update_host_status(self):
+        """See xenapi_conn.py implementation."""
+        pass
+
+    def get_host_stats(self, refresh=False):
+        """See xenapi_conn.py implementation."""
+        return {}
+
+    def host_power_action(self, host, action):
+        """Reboots, shuts down or powers up the host."""
+        pass
+
+    def set_host_enabled(self, host, enabled):
+        """Sets the specified host's ability to accept new instances."""
+        pass
+
+    def snapshot(self, context, instance, name):
+        self._snapshotops.snapshot(context, instance, name)
+
+    def pause(self, instance):
+        self._vmops.pause(instance)
+
+    def unpause(self, instance):
+        self._vmops.unpause(instance)
+
+    def suspend(self, instance):
+        self._vmops.suspend(instance)
+
+    def resume(self, instance):
+        self._vmops.resume(instance)
+
+    def power_off(self, instance):
+        self._vmops.power_off(instance)
+
+    def power_on(self, instance):
+        self._vmops.power_on(instance)
+
+    def live_migration(self, context, instance_ref, dest, post_method,
+        recover_method, block_migration=False):
+        self._livemigrationops.live_migration(context, instance_ref, dest,
+            post_method, recover_method, block_migration)
+
+    def compare_cpu(self, cpu_info):
+        return self._livemigrationops.compare_cpu(cpu_info)
+
+    def pre_live_migration(self, context, instance, block_device_info,
+        network_info):
+        self._livemigrationops.pre_live_migration(context, instance,
+            block_device_info, network_info)
+
+    def post_live_migration_at_destination(self, ctxt, instance_ref,
+        network_info, block_migration):
+        self._livemigrationops.post_live_migration_at_destination(ctxt,
+            instance_ref, network_info, block_migration)
+
+    def check_can_live_migrate_destination(self, ctxt, instance,
+        block_migration, disk_over_commit):
+        pass
+
+    def check_can_live_migrate_destination_cleanup(self, ctxt,
+        dest_check_data):
+        pass
+
+    def check_can_live_migrate_source(self, ctxt, instance, dest_check_data):
+        pass
+
+    def plug_vifs(self, instance, network_info):
+        LOG.debug(_("plug_vifs called"), instance=instance)
+
+    def unplug_vifs(self, instance, network_info):
+        LOG.debug(_("plug_vifs called"), instance=instance)
+
+    def ensure_filtering_rules_for_instance(self, instance_ref, network_info):
+        LOG.debug(_("ensure_filtering_rules_for_instance called"),
+            instance=instance_ref)
+
+    def unfilter_instance(self, instance, network_info):
+        """Stop filtering instance"""
+        LOG.debug(_("unfilter_instance called"), instance=instance)
+
+    def confirm_migration(self, migration, instance, network_info):
+        """Confirms a resize, destroying the source VM"""
+        LOG.debug(_("confirm_migration called"), instance=instance)
+
+    def finish_revert_migration(self, instance, network_info):
+        """Finish reverting a resize, powering back on the instance"""
+        LOG.debug(_("finish_revert_migration called"), instance=instance)
+
+    def finish_migration(self, context, migration, instance, disk_info,
+        network_info, image_meta, resize_instance=False):
+        """Completes a resize, turning on the migrated instance"""
+        LOG.debug(_("finish_migration called"), instance=instance)
+
+    def get_console_output(self, instance):
+        LOG.debug(_("get_console_output called"), instance=instance)
+        return ''
+
+    def legacy_nwinfo(self):
+        return False
diff --git a/nova/virt/hyperv/ioutils.py b/nova/virt/hyperv/ioutils.py
new file mode 100644
index 000000000..d927e317f
--- /dev/null
+++ b/nova/virt/hyperv/ioutils.py
@@ -0,0 +1,26 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 Cloudbase Solutions Srl
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Utility class to ease the task of creating stubs of built in IO functions.
+"""
+
+import __builtin__
+
+
+def open(name, mode):
+    return __builtin__.open(name, mode)
diff --git a/nova/virt/hyperv/livemigrationops.py b/nova/virt/hyperv/livemigrationops.py
new file mode 100644
index 000000000..1f97adf24
--- /dev/null
+++ b/nova/virt/hyperv/livemigrationops.py
@@ -0,0 +1,162 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 Cloudbase Solutions Srl
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Management class for live migration VM operations.
+"""
+import os
+import sys
+
+from nova import exception
+from nova import flags
+from nova.openstack.common import excutils
+from nova.openstack.common import log as logging
+from nova.virt.hyperv import baseops
+from nova.virt.hyperv import constants
+from nova.virt.hyperv import vmutils
+
+# Check needed for unit testing on Unix
+if sys.platform == 'win32':
+    import wmi
+
+LOG = logging.getLogger(__name__)
+FLAGS = flags.FLAGS
+
+
+class LiveMigrationOps(baseops.BaseOps):
+    def __init__(self, volumeops):
+        super(LiveMigrationOps, self).__init__()
+
+        self._vmutils = vmutils.VMUtils()
+        self._volumeops = volumeops
+
+    def _check_live_migration_config(self):
+        try:
+            self._conn_v2
+        except Exception:
+            raise vmutils.HyperVException(
+                _('Live migration is not supported " \
+                    "by this version of Hyper-V'))
+
+        migration_svc = self._conn_v2.Msvm_VirtualSystemMigrationService()[0]
+        vsmssd = migration_svc.associators(
+          wmi_association_class='Msvm_ElementSettingData',
+          wmi_result_class='Msvm_VirtualSystemMigrationServiceSettingData')[0]
+        if not vsmssd.EnableVirtualSystemMigration:
+            raise vmutils.HyperVException(
+                _('Live migration is not enabled on this host'))
+        if not migration_svc.MigrationServiceListenerIPAddressList:
+            raise vmutils.HyperVException(
+                _('Live migration networks are not configured on this host'))
+
+    def live_migration(self, context, instance_ref, dest, post_method,
+        recover_method, block_migration=False):
+        LOG.debug(_("live_migration called"), instance=instance_ref)
+        instance_name = instance_ref["name"]
+
+        try:
+            self._check_live_migration_config()
+
+            vm_name = self._vmutils.lookup(self._conn, instance_name)
+            if vm_name is None:
+                raise exception.InstanceNotFound(instance=instance_name)
+            vm = self._conn_v2.Msvm_ComputerSystem(
+                ElementName=instance_name)[0]
+            vm_settings = vm.associators(
+                wmi_association_class='Msvm_SettingsDefineState',
+                wmi_result_class='Msvm_VirtualSystemSettingData')[0]
+
+            new_resource_setting_data = []
+            sasds = vm_settings.associators(
+                wmi_association_class='Msvm_VirtualSystemSettingDataComponent',
+                wmi_result_class='Msvm_StorageAllocationSettingData')
+            for sasd in sasds:
+                if sasd.ResourceType == 31 and \
+                    sasd.ResourceSubType == \
+                    "Microsoft:Hyper-V:Virtual Hard Disk":
+                    #sasd.PoolId = ""
+                    new_resource_setting_data.append(sasd.GetText_(1))
+
+            LOG.debug(_("Getting live migration networks for remote "
+                "host: %s"), dest)
+            _conn_v2_remote = wmi.WMI(
+                moniker='//' + dest + '/root/virtualization/v2')
+            migration_svc_remote = \
+                _conn_v2_remote.Msvm_VirtualSystemMigrationService()[0]
+            remote_ip_address_list = \
+                migration_svc_remote.MigrationServiceListenerIPAddressList
+
+            # VirtualSystemAndStorage
+            vsmsd = self._conn_v2.query("select * from "
+                "Msvm_VirtualSystemMigrationSettingData "
+                "where MigrationType = 32771")[0]
+            vsmsd.DestinationIPAddressList = remote_ip_address_list
+            migration_setting_data = vsmsd.GetText_(1)
+
+            migration_svc =\
+                self._conn_v2.Msvm_VirtualSystemMigrationService()[0]
+
+            LOG.debug(_("Starting live migration for instance: %s"),
+                instance_name)
+            (job_path, ret_val) = migration_svc.MigrateVirtualSystemToHost(
+                ComputerSystem=vm.path_(),
+                DestinationHost=dest,
+                MigrationSettingData=migration_setting_data,
+                NewResourceSettingData=new_resource_setting_data)
+            if ret_val == constants.WMI_JOB_STATUS_STARTED:
+                success = self._vmutils.check_job_status(job_path)
+            else:
+                success = (ret_val == 0)
+            if not success:
+                raise vmutils.HyperVException(
+                    _('Failed to live migrate VM %s') % instance_name)
+        except Exception:
+            with excutils.save_and_reraise_exception():
+                LOG.debug(_("Calling live migration recover_method "
+                    "for instance: %s"), instance_name)
+                recover_method(context, instance_ref, dest, block_migration)
+
+        LOG.debug(_("Calling live migration post_method for instance: %s"),
+            instance_name)
+        post_method(context, instance_ref, dest, block_migration)
+
+    def pre_live_migration(self, context, instance, block_device_info,
+        network_info):
+        LOG.debug(_("pre_live_migration called"), instance=instance)
+        self._check_live_migration_config()
+
+        if FLAGS.use_cow_images:
+            ebs_root = self._volumeops.volume_in_mapping(
+                self._volumeops.get_default_root_device(),
+                block_device_info)
+            if not ebs_root:
+                base_vhd_path = self._vmutils.get_base_vhd_path(
+                    instance["image_ref"])
+                if not os.path.exists(base_vhd_path):
+                    self._vmutils.fetch_image(base_vhd_path, context,
+                        instance["image_ref"],
+                        instance["user_id"],
+                        instance["project_id"])
+
+    def post_live_migration_at_destination(self, ctxt, instance_ref,
+        network_info, block_migration):
+        LOG.debug(_("post_live_migration_at_destination called"),
+            instance=instance_ref)
+
+    def compare_cpu(self, cpu_info):
+        LOG.debug(_("compare_cpu called %s"), cpu_info)
+        return True
diff --git a/nova/virt/hyperv/snapshotops.py b/nova/virt/hyperv/snapshotops.py
new file mode 100644
index 000000000..5e4676a4a
--- /dev/null
+++ b/nova/virt/hyperv/snapshotops.py
@@ -0,0 +1,187 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 Cloudbase Solutions Srl
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Management class for VM snapshot operations.
+"""
+import os
+import shutil
+import sys
+
+from nova import exception
+from nova import flags
+from nova.image import glance
+from nova.openstack.common import log as logging
+from nova.virt.hyperv import baseops
+from nova.virt.hyperv import constants
+from nova.virt.hyperv import ioutils
+from nova.virt.hyperv import vmutils
+from xml.etree import ElementTree
+
+# Check needed for unit testing on Unix
+if sys.platform == 'win32':
+    import wmi
+
+FLAGS = flags.FLAGS
+LOG = logging.getLogger(__name__)
+
+
+class SnapshotOps(baseops.BaseOps):
+    def __init__(self):
+        super(SnapshotOps, self).__init__()
+        self._vmutils = vmutils.VMUtils()
+
+    def snapshot(self, context, instance, name):
+        """Create snapshot from a running VM instance."""
+        instance_name = instance["name"]
+        vm = self._vmutils.lookup(self._conn, instance_name)
+        if vm is None:
+            raise exception.InstanceNotFound(instance=instance_name)
+        vm = self._conn.Msvm_ComputerSystem(ElementName=instance_name)[0]
+        vs_man_svc = self._conn.Msvm_VirtualSystemManagementService()[0]
+
+        LOG.debug(_("Creating snapshot for instance %s"), instance_name)
+        (job_path, ret_val, snap_setting_data) = \
+            vs_man_svc.CreateVirtualSystemSnapshot(vm.path_())
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self._vmutils.check_job_status(job_path)
+            if success:
+                job_wmi_path = job_path.replace('\\', '/')
+                job = wmi.WMI(moniker=job_wmi_path)
+                snap_setting_data = job.associators(
+                    wmi_result_class='Msvm_VirtualSystemSettingData')[0]
+        else:
+            success = (ret_val == 0)
+        if not success:
+            raise vmutils.HyperVException(
+                _('Failed to create snapshot for VM %s') %
+                    instance_name)
+
+        export_folder = None
+        f = None
+
+        try:
+            src_vhd_path = os.path.join(FLAGS.instances_path, instance_name,
+                instance_name + ".vhd")
+
+            image_man_svc = self._conn.Msvm_ImageManagementService()[0]
+
+            LOG.debug(_("Getting info for VHD %s"), src_vhd_path)
+            (src_vhd_info, job_path, ret_val) = \
+                image_man_svc.GetVirtualHardDiskInfo(src_vhd_path)
+            if ret_val == constants.WMI_JOB_STATUS_STARTED:
+                success = self._vmutils.check_job_status(job_path)
+            else:
+                success = (ret_val == 0)
+            if not success:
+                raise vmutils.HyperVException(
+                    _("Failed to get info for disk %s") %
+                        (src_vhd_path))
+
+            src_base_disk_path = None
+            et = ElementTree.fromstring(src_vhd_info)
+            for item in et.findall("PROPERTY"):
+                if item.attrib["NAME"] == "ParentPath":
+                    src_base_disk_path = item.find("VALUE").text
+                    break
+
+            export_folder = self._vmutils.make_export_path(instance_name)
+
+            dest_vhd_path = os.path.join(export_folder, os.path.basename(
+                src_vhd_path))
+            LOG.debug(_('Copying VHD %(src_vhd_path)s to %(dest_vhd_path)s'),
+                locals())
+            shutil.copyfile(src_vhd_path, dest_vhd_path)
+
+            image_vhd_path = None
+            if not src_base_disk_path:
+                image_vhd_path = dest_vhd_path
+            else:
+                dest_base_disk_path = os.path.join(export_folder,
+                    os.path.basename(src_base_disk_path))
+                LOG.debug(_('Copying base disk %(src_vhd_path)s to '
+                    '%(dest_base_disk_path)s'), locals())
+                shutil.copyfile(src_base_disk_path, dest_base_disk_path)
+
+                LOG.debug(_("Reconnecting copied base VHD "
+                    "%(dest_base_disk_path)s and diff VHD %(dest_vhd_path)s"),
+                    locals())
+                (job_path, ret_val) = \
+                    image_man_svc.ReconnectParentVirtualHardDisk(
+                        ChildPath=dest_vhd_path,
+                        ParentPath=dest_base_disk_path,
+                        Force=True)
+                if ret_val == constants.WMI_JOB_STATUS_STARTED:
+                    success = self._vmutils.check_job_status(job_path)
+                else:
+                    success = (ret_val == 0)
+                if not success:
+                    raise vmutils.HyperVException(
+                        _("Failed to reconnect base disk "
+                            "%(dest_base_disk_path)s and diff disk "
+                            "%(dest_vhd_path)s") %
+                            locals())
+
+                LOG.debug(_("Merging base disk %(dest_base_disk_path)s and "
+                    "diff disk %(dest_vhd_path)s"),
+                    locals())
+                (job_path, ret_val) = image_man_svc.MergeVirtualHardDisk(
+                    SourcePath=dest_vhd_path,
+                    DestinationPath=dest_base_disk_path)
+                if ret_val == constants.WMI_JOB_STATUS_STARTED:
+                    success = self._vmutils.check_job_status(job_path)
+                else:
+                    success = (ret_val == 0)
+                if not success:
+                    raise vmutils.HyperVException(
+                        _("Failed to merge base disk %(dest_base_disk_path)s "
+                            "and diff disk %(dest_vhd_path)s") %
+                            locals())
+                image_vhd_path = dest_base_disk_path
+
+            (glance_image_service, image_id) = \
+                glance.get_remote_image_service(context, name)
+            image_metadata = {"is_public": False,
+                      "disk_format": "vhd",
+                      "container_format": "bare",
+                      "properties": {}}
+            f = ioutils.open(image_vhd_path, 'rb')
+            LOG.debug(
+                _("Updating Glance image %(image_id)s with content from "
+                    "merged disk %(image_vhd_path)s"),
+                    locals())
+            glance_image_service.update(context, image_id, image_metadata, f)
+
+            LOG.debug(_("Snapshot image %(image_id)s updated for VM "
+                "%(instance_name)s"), locals())
+        finally:
+            LOG.debug(_("Removing snapshot %s"), name)
+            (job_path, ret_val) = vs_man_svc.RemoveVirtualSystemSnapshot(
+                snap_setting_data.path_())
+            if ret_val == constants.WMI_JOB_STATUS_STARTED:
+                success = self._vmutils.check_job_status(job_path)
+            else:
+                success = (ret_val == 0)
+            if not success:
+                raise vmutils.HyperVException(
+                    _('Failed to remove snapshot for VM %s') %
+                        instance_name)
+            if f:
+                f.close()
+            if export_folder:
+                LOG.debug(_('Removing folder %s '), export_folder)
+                shutil.rmtree(export_folder)
diff --git a/nova/virt/hyperv/vmops.py b/nova/virt/hyperv/vmops.py
new file mode 100644
index 000000000..94cb7477e
--- /dev/null
+++ b/nova/virt/hyperv/vmops.py
@@ -0,0 +1,650 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 Cloudbase Solutions Srl
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Management class for basic VM operations.
+"""
+import multiprocessing
+import os
+import uuid
+
+from nova import db
+from nova import exception
+from nova import flags
+from nova.openstack.common import cfg
+from nova.openstack.common import log as logging
+from nova import utils
+from nova.virt import driver
+from nova.virt.hyperv import baseops
+from nova.virt.hyperv import constants
+from nova.virt.hyperv import vmutils
+
+LOG = logging.getLogger(__name__)
+
+hyperv_opts = [
+    cfg.StrOpt('vswitch_name',
+                default=None,
+                help='Default vSwitch Name, '
+                    'if none provided first external is used'),
+    cfg.BoolOpt('limit_cpu_features',
+               default=False,
+               help='required for live migration among '
+                    'hosts with different CPU features')
+    ]
+
+FLAGS = flags.FLAGS
+FLAGS.register_opts(hyperv_opts)
+
+
+class VMOps(baseops.BaseOps):
+    def __init__(self, volumeops):
+        super(VMOps, self).__init__()
+
+        self._vmutils = vmutils.VMUtils()
+        self._volumeops = volumeops
+
+    def list_instances(self):
+        """ Return the names of all the instances known to Hyper-V. """
+        vms = [v.ElementName
+                for v in self._conn.Msvm_ComputerSystem(['ElementName'],
+                    Caption="Virtual Machine")]
+        return vms
+
+    def list_instances_detail(self):
+        instance_infos = []
+        for instance_name in self.list_instances():
+            info = self._get_info(instance_name)
+            instance_info = driver.InstanceInfo(
+                instance_name, int(info['state']))
+            instance_infos.append(instance_info)
+        return instance_infos
+
+    def get_info(self, instance):
+        """Get information about the VM"""
+        LOG.debug(_("get_info called for instance"), instance=instance)
+        instance_name = instance["name"]
+        return self._get_info(instance_name)
+
+    def _get_info(self, instance_name):
+        vm = self._vmutils.lookup(self._conn, instance_name)
+        if vm is None:
+            raise exception.InstanceNotFound(instance=instance_name)
+        vm = self._conn.Msvm_ComputerSystem(
+            ElementName=instance_name)[0]
+        vs_man_svc = self._conn.Msvm_VirtualSystemManagementService()[0]
+        vmsettings = vm.associators(
+                       wmi_association_class='Msvm_SettingsDefineState',
+                       wmi_result_class='Msvm_VirtualSystemSettingData')
+        settings_paths = [v.path_() for v in vmsettings]
+        #See http://msdn.microsoft.com/en-us/library/cc160706%28VS.85%29.aspx
+        summary_info = vs_man_svc.GetSummaryInformation(
+                                       [constants.VM_SUMMARY_NUM_PROCS,
+                                        constants.VM_SUMMARY_ENABLED_STATE,
+                                        constants.VM_SUMMARY_MEMORY_USAGE,
+                                        constants.VM_SUMMARY_UPTIME],
+                                            settings_paths)[1]
+        info = summary_info[0]
+
+        LOG.debug(_("hyperv vm state: %s"), info.EnabledState)
+        state = str(constants.HYPERV_POWER_STATE[info.EnabledState])
+        memusage = str(info.MemoryUsage)
+        numprocs = str(info.NumberOfProcessors)
+        uptime = str(info.UpTime)
+
+        LOG.debug(_("Got Info for vm %(instance_name)s: state=%(state)s,"
+                " mem=%(memusage)s, num_cpu=%(numprocs)s,"
+                " uptime=%(uptime)s"), locals())
+
+        return {'state': state,
+                'max_mem': info.MemoryUsage,
+                'mem': info.MemoryUsage,
+                'num_cpu': info.NumberOfProcessors,
+                'cpu_time': info.UpTime}
+
+    def spawn(self, context, instance, image_meta, network_info,
+        block_device_info=None):
+        """ Create a new VM and start it."""
+        instance_name = instance["name"]
+        vm = self._vmutils.lookup(self._conn, instance_name)
+        if vm is not None:
+            raise exception.InstanceExists(name=instance_name)
+
+        ebs_root = self._volumeops.volume_in_mapping(
+            self._volumeops.get_default_root_device(),
+           block_device_info)
+
+        #If is not a boot from volume spawn
+        if not (ebs_root):
+            #Fetch the file, assume it is a VHD file.
+            vhdfile = self._vmutils.get_vhd_path(instance_name)
+            try:
+                self._cache_image(fn=self._vmutils.fetch_image,
+                  context=context,
+                  target=vhdfile,
+                  fname=instance['image_ref'],
+                  image_id=instance['image_ref'],
+                  user=instance['user_id'],
+                  project=instance['project_id'],
+                  cow=FLAGS.use_cow_images)
+            except Exception as exn:
+                LOG.exception(_('cache image failed: %s'), exn)
+                self.destroy(instance)
+
+        try:
+            self._create_vm(instance)
+
+            if not ebs_root:
+                self._create_disk(instance['name'], vhdfile)
+            else:
+                self._volumeops.attach_boot_volume(block_device_info,
+                                             instance_name)
+
+            #A SCSI controller for volumes connection is created
+            self._create_scsi_controller(instance['name'])
+
+            for vif in network_info:
+                mac_address = vif['address'].replace(':', '')
+                self._create_nic(instance['name'], mac_address)
+
+            LOG.debug(_('Starting VM %s '), instance_name)
+            self._set_vm_state(instance['name'], 'Enabled')
+            LOG.info(_('Started VM %s '), instance_name)
+        except Exception as exn:
+            LOG.exception(_('spawn vm failed: %s'), exn)
+            self.destroy(instance)
+            raise exn
+
+    def _create_vm(self, instance):
+        """Create a VM but don't start it.  """
+        instance_name = instance["name"]
+        vs_man_svc = self._conn.Msvm_VirtualSystemManagementService()[0]
+
+        vs_gs_data = self._conn.Msvm_VirtualSystemGlobalSettingData.new()
+        vs_gs_data.ElementName = instance_name
+        (job, ret_val) = vs_man_svc.DefineVirtualSystem(
+                [], None, vs_gs_data.GetText_(1))[1:]
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self._vmutils.check_job_status(job)
+        else:
+            success = (ret_val == 0)
+
+        if not success:
+            raise vmutils.HyperVException(_('Failed to create VM %s') %
+                instance_name)
+
+        LOG.debug(_('Created VM %s...'), instance_name)
+        vm = self._conn.Msvm_ComputerSystem(ElementName=instance_name)[0]
+
+        vmsettings = vm.associators(
+                          wmi_result_class='Msvm_VirtualSystemSettingData')
+        vmsetting = [s for s in vmsettings
+                        if s.SettingType == 3][0]  # avoid snapshots
+        memsetting = vmsetting.associators(
+                           wmi_result_class='Msvm_MemorySettingData')[0]
+        #No Dynamic Memory, so reservation, limit and quantity are identical.
+        mem = long(str(instance['memory_mb']))
+        memsetting.VirtualQuantity = mem
+        memsetting.Reservation = mem
+        memsetting.Limit = mem
+
+        (job, ret_val) = vs_man_svc.ModifyVirtualSystemResources(
+                vm.path_(), [memsetting.GetText_(1)])
+        LOG.debug(_('Set memory for vm %s...'), instance_name)
+        procsetting = vmsetting.associators(
+                wmi_result_class='Msvm_ProcessorSettingData')[0]
+        vcpus = long(instance['vcpus'])
+        procsetting.VirtualQuantity = vcpus
+        procsetting.Reservation = vcpus
+        procsetting.Limit = 100000  # static assignment to 100%
+
+        if FLAGS.limit_cpu_features:
+            procsetting.LimitProcessorFeatures = True
+
+        (job, ret_val) = vs_man_svc.ModifyVirtualSystemResources(
+                vm.path_(), [procsetting.GetText_(1)])
+        LOG.debug(_('Set vcpus for vm %s...'), instance_name)
+
+    def _create_scsi_controller(self, vm_name):
+        """ Create an iscsi controller ready to mount volumes """
+        LOG.debug(_('Creating a scsi controller for %(vm_name)s for volume '
+                'attaching') % locals())
+        vms = self._conn.MSVM_ComputerSystem(ElementName=vm_name)
+        vm = vms[0]
+        scsicontrldefault = self._conn.query(
+                "SELECT * FROM Msvm_ResourceAllocationSettingData \
+                WHERE ResourceSubType = 'Microsoft Synthetic SCSI Controller'\
+                AND InstanceID LIKE '%Default%'")[0]
+        if scsicontrldefault is None:
+            raise vmutils.HyperVException(_('Controller not found'))
+        scsicontrl = self._vmutils.clone_wmi_obj(self._conn,
+                'Msvm_ResourceAllocationSettingData', scsicontrldefault)
+        scsicontrl.VirtualSystemIdentifiers = ['{' + str(uuid.uuid4()) + '}']
+        scsiresource = self._vmutils.add_virt_resource(self._conn,
+            scsicontrl, vm)
+        if scsiresource is None:
+            raise vmutils.HyperVException(
+                _('Failed to add scsi controller to VM %s') %
+                vm_name)
+
+    def _create_disk(self, vm_name, vhdfile):
+        """Create a disk and attach it to the vm"""
+        LOG.debug(_('Creating disk for %(vm_name)s by attaching'
+                ' disk file %(vhdfile)s') % locals())
+        #Find the IDE controller for the vm.
+        vms = self._conn.MSVM_ComputerSystem(ElementName=vm_name)
+        vm = vms[0]
+        vmsettings = vm.associators(
+            wmi_result_class='Msvm_VirtualSystemSettingData')
+        rasds = vmsettings[0].associators(
+            wmi_result_class='MSVM_ResourceAllocationSettingData')
+        ctrller = [r for r in rasds
+            if r.ResourceSubType == 'Microsoft Emulated IDE Controller'
+            and r.Address == "0"]
+        #Find the default disk drive object for the vm and clone it.
+        diskdflt = self._conn.query(
+            "SELECT * FROM Msvm_ResourceAllocationSettingData \
+            WHERE ResourceSubType LIKE 'Microsoft Synthetic Disk Drive'\
+            AND InstanceID LIKE '%Default%'")[0]
+        diskdrive = self._vmutils.clone_wmi_obj(self._conn,
+                'Msvm_ResourceAllocationSettingData', diskdflt)
+        #Set the IDE ctrller as parent.
+        diskdrive.Parent = ctrller[0].path_()
+        diskdrive.Address = 0
+        #Add the cloned disk drive object to the vm.
+        new_resources = self._vmutils.add_virt_resource(self._conn,
+            diskdrive, vm)
+        if new_resources is None:
+            raise vmutils.HyperVException(
+                _('Failed to add diskdrive to VM %s') %
+                    vm_name)
+        diskdrive_path = new_resources[0]
+        LOG.debug(_('New disk drive path is %s'), diskdrive_path)
+        #Find the default VHD disk object.
+        vhddefault = self._conn.query(
+                "SELECT * FROM Msvm_ResourceAllocationSettingData \
+                 WHERE ResourceSubType LIKE 'Microsoft Virtual Hard Disk' AND \
+                 InstanceID LIKE '%Default%' ")[0]
+
+        #Clone the default and point it to the image file.
+        vhddisk = self._vmutils.clone_wmi_obj(self._conn,
+                'Msvm_ResourceAllocationSettingData', vhddefault)
+        #Set the new drive as the parent.
+        vhddisk.Parent = diskdrive_path
+        vhddisk.Connection = [vhdfile]
+
+        #Add the new vhd object as a virtual hard disk to the vm.
+        new_resources = self._vmutils.add_virt_resource(self._conn,
+            vhddisk, vm)
+        if new_resources is None:
+            raise vmutils.HyperVException(
+                _('Failed to add vhd file to VM %s') %
+                    vm_name)
+        LOG.info(_('Created disk for %s'), vm_name)
+
+    def _create_nic(self, vm_name, mac):
+        """Create a (synthetic) nic and attach it to the vm"""
+        LOG.debug(_('Creating nic for %s '), vm_name)
+        #Find the vswitch that is connected to the physical nic.
+        vms = self._conn.Msvm_ComputerSystem(ElementName=vm_name)
+        extswitch = self._find_external_network()
+        if extswitch is None:
+            raise vmutils.HyperVException(_('Cannot find vSwitch'))
+
+        vm = vms[0]
+        switch_svc = self._conn.Msvm_VirtualSwitchManagementService()[0]
+        #Find the default nic and clone it to create a new nic for the vm.
+        #Use Msvm_SyntheticEthernetPortSettingData for Windows or Linux with
+        #Linux Integration Components installed.
+        syntheticnics_data = self._conn.Msvm_SyntheticEthernetPortSettingData()
+        default_nic_data = [n for n in syntheticnics_data
+                            if n.InstanceID.rfind('Default') > 0]
+        new_nic_data = self._vmutils.clone_wmi_obj(self._conn,
+                'Msvm_SyntheticEthernetPortSettingData',
+                default_nic_data[0])
+        #Create a port on the vswitch.
+        (new_port, ret_val) = switch_svc.CreateSwitchPort(
+            Name=str(uuid.uuid4()),
+            FriendlyName=vm_name,
+            ScopeOfResidence="",
+            VirtualSwitch=extswitch.path_())
+        if ret_val != 0:
+            LOG.error(_('Failed creating a port on the external vswitch'))
+            raise vmutils.HyperVException(_('Failed creating port for %s') %
+                    vm_name)
+        ext_path = extswitch.path_()
+        LOG.debug(_("Created switch port %(vm_name)s on switch %(ext_path)s")
+                % locals())
+        #Connect the new nic to the new port.
+        new_nic_data.Connection = [new_port]
+        new_nic_data.ElementName = vm_name + ' nic'
+        new_nic_data.Address = mac
+        new_nic_data.StaticMacAddress = 'True'
+        new_nic_data.VirtualSystemIdentifiers = ['{' + str(uuid.uuid4()) + '}']
+        #Add the new nic to the vm.
+        new_resources = self._vmutils.add_virt_resource(self._conn,
+            new_nic_data, vm)
+        if new_resources is None:
+            raise vmutils.HyperVException(_('Failed to add nic to VM %s') %
+                    vm_name)
+        LOG.info(_("Created nic for %s "), vm_name)
+
+    def _find_external_network(self):
+        """Find the vswitch that is connected to the physical nic.
+           Assumes only one physical nic on the host
+        """
+        #If there are no physical nics connected to networks, return.
+        LOG.debug(_("Attempting to bind NIC to %s ")
+                % FLAGS.vswitch_name)
+        if FLAGS.vswitch_name:
+            LOG.debug(_("Attempting to bind NIC to %s ")
+                % FLAGS.vswitch_name)
+            bound = self._conn.Msvm_VirtualSwitch(
+                ElementName=FLAGS.vswitch_name)
+        else:
+            LOG.debug(_("No vSwitch specified, attaching to default"))
+            self._conn.Msvm_ExternalEthernetPort(IsBound='TRUE')
+        if len(bound) == 0:
+            return None
+        if FLAGS.vswitch_name:
+            return self._conn.Msvm_VirtualSwitch(
+                ElementName=FLAGS.vswitch_name)[0]\
+                .associators(wmi_result_class='Msvm_SwitchPort')[0]\
+                .associators(wmi_result_class='Msvm_VirtualSwitch')[0]
+        else:
+            return self._conn.Msvm_ExternalEthernetPort(IsBound='TRUE')\
+                .associators(wmi_result_class='Msvm_SwitchPort')[0]\
+                .associators(wmi_result_class='Msvm_VirtualSwitch')[0]
+
+    def reboot(self, instance, network_info, reboot_type):
+        instance_name = instance["name"]
+        """Reboot the specified instance."""
+        vm = self._vmutils.lookup(self._conn, instance_name)
+        if vm is None:
+            raise exception.InstanceNotFound(instance_id=instance["id"])
+        self._set_vm_state(instance_name, 'Reboot')
+
+    def destroy(self, instance, network_info=None, cleanup=True):
+        """Destroy the VM. Also destroy the associated VHD disk files"""
+        instance_name = instance["name"]
+        LOG.debug(_("Got request to destroy vm %s"), instance_name)
+        vm = self._vmutils.lookup(self._conn, instance_name)
+        if vm is None:
+            return
+        vm = self._conn.Msvm_ComputerSystem(ElementName=instance_name)[0]
+        vs_man_svc = self._conn.Msvm_VirtualSystemManagementService()[0]
+        #Stop the VM first.
+        self._set_vm_state(instance_name, 'Disabled')
+        vmsettings = vm.associators(
+                         wmi_result_class='Msvm_VirtualSystemSettingData')
+        rasds = vmsettings[0].associators(
+                         wmi_result_class='MSVM_ResourceAllocationSettingData')
+        disks = [r for r in rasds
+                    if r.ResourceSubType == 'Microsoft Virtual Hard Disk']
+        disk_files = []
+        volumes = [r for r in rasds
+                    if r.ResourceSubType == 'Microsoft Physical Disk Drive']
+        volumes_drives_list = []
+        #collect the volumes information before destroying the VM.
+        for volume in volumes:
+            hostResources = volume.HostResource
+            drive_path = hostResources[0]
+            #Appending the Msvm_Disk path
+            volumes_drives_list.append(drive_path)
+        #Collect disk file information before destroying the VM.
+        for disk in disks:
+            disk_files.extend([c for c in disk.Connection])
+        #Nuke the VM. Does not destroy disks.
+        (job, ret_val) = vs_man_svc.DestroyVirtualSystem(vm.path_())
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self._vmutils.check_job_status(job)
+        elif ret_val == 0:
+            success = True
+        if not success:
+            raise vmutils.HyperVException(_('Failed to destroy vm %s') %
+                instance_name)
+        #Disconnect volumes
+        for volume_drive in volumes_drives_list:
+            self._volumeops.disconnect_volume(volume_drive)
+        #Delete associated vhd disk files.
+        for disk in disk_files:
+            vhdfile = self._conn_cimv2.query(
+            "Select * from CIM_DataFile where Name = '" +
+                disk.replace("'", "''") + "'")[0]
+            LOG.debug(_("Del: disk %(vhdfile)s vm %(instance_name)s")
+                % locals())
+            vhdfile.Delete()
+
+    def pause(self, instance):
+        """Pause VM instance."""
+        LOG.debug(_("Pause instance"), instance=instance)
+        self._set_vm_state(instance["name"], 'Paused')
+
+    def unpause(self, instance):
+        """Unpause paused VM instance."""
+        LOG.debug(_("Unpause instance"), instance=instance)
+        self._set_vm_state(instance["name"], 'Enabled')
+
+    def suspend(self, instance):
+        """Suspend the specified instance."""
+        print instance
+        LOG.debug(_("Suspend instance"), instance=instance)
+        self._set_vm_state(instance["name"], 'Suspended')
+
+    def resume(self, instance):
+        """Resume the suspended VM instance."""
+        LOG.debug(_("Resume instance"), instance=instance)
+        self._set_vm_state(instance["name"], 'Enabled')
+
+    def power_off(self, instance):
+        """Power off the specified instance."""
+        LOG.debug(_("Power off instance"), instance=instance)
+        self._set_vm_state(instance["name"], 'Disabled')
+
+    def power_on(self, instance):
+        """Power on the specified instance"""
+        LOG.debug(_("Power on instance"), instance=instance)
+        self._set_vm_state(instance["name"], 'Enabled')
+
+    def _set_vm_state(self, vm_name, req_state):
+        """Set the desired state of the VM"""
+        vms = self._conn.Msvm_ComputerSystem(ElementName=vm_name)
+        if len(vms) == 0:
+            return False
+        (job, ret_val) = vms[0].RequestStateChange(
+            constants.REQ_POWER_STATE[req_state])
+        success = False
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self._vmutils.check_job_status(job)
+        elif ret_val == 0:
+            success = True
+        elif ret_val == 32775:
+            #Invalid state for current operation. Typically means it is
+            #already in the state requested
+            success = True
+        if success:
+            LOG.info(_("Successfully changed vm state of %(vm_name)s"
+                    " to %(req_state)s") % locals())
+        else:
+            msg = _("Failed to change vm state of %(vm_name)s"
+                    " to %(req_state)s") % locals()
+            LOG.error(msg)
+            raise vmutils.HyperVException(msg)
+
+    def _get_vcpu_total(self):
+        """Get vcpu number of physical computer.
+        :returns: the number of cpu core.
+        """
+        # On certain platforms, this will raise a NotImplementedError.
+        try:
+            return multiprocessing.cpu_count()
+        except NotImplementedError:
+            LOG.warn(_("Cannot get the number of cpu, because this "
+                       "function is not implemented for this platform. "
+                       "This error can be safely ignored for now."))
+            return 0
+
+    def _get_memory_mb_total(self):
+        """Get the total memory size(MB) of physical computer.
+        :returns: the total amount of memory(MB).
+        """
+        total_kb = self._conn_cimv2.query(
+            "SELECT TotalVisibleMemorySize FROM win32_operatingsystem")[0]\
+            .TotalVisibleMemorySize
+        total_mb = long(total_kb) / 1024
+        return total_mb
+
+    def _get_local_gb_total(self):
+        """Get the total hdd size(GB) of physical computer.
+        :returns:
+            The total amount of HDD(GB).
+            Note that this value shows a partition where
+            NOVA-INST-DIR/instances mounts.
+        """
+        #TODO(jordanrinke): This binds to C only right now,
+        #need to bind to instance dir
+        total_kb = self._conn_cimv2.query(
+            "SELECT Size FROM win32_logicaldisk WHERE DriveType=3")[0].Size
+        total_gb = long(total_kb) / (1024 ** 3)
+        return total_gb
+
+    def _get_vcpu_used(self):
+        """ Get vcpu usage number of physical computer.
+        :returns: The total number of vcpu that currently used.
+        """
+        #TODO(jordanrinke) figure out a way to count assigned VCPUs
+        total_vcpu = 0
+        return total_vcpu
+
+    def _get_memory_mb_used(self):
+        """Get the free memory size(MB) of physical computer.
+        :returns: the total usage of memory(MB).
+        """
+        total_kb = self._conn_cimv2.query(
+            "SELECT FreePhysicalMemory FROM win32_operatingsystem")[0]\
+                .FreePhysicalMemory
+        total_mb = long(total_kb) / 1024
+
+        return total_mb
+
+    def _get_local_gb_used(self):
+        """Get the free hdd size(GB) of physical computer.
+        :returns:
+           The total usage of HDD(GB).
+           Note that this value shows a partition where
+           NOVA-INST-DIR/instances mounts.
+        """
+        #TODO(jordanrinke): This binds to C only right now,
+        #need to bind to instance dir
+        total_kb = self._conn_cimv2.query(
+            "SELECT FreeSpace FROM win32_logicaldisk WHERE DriveType=3")[0]\
+                .FreeSpace
+        total_gb = long(total_kb) / (1024 ** 3)
+        return total_gb
+
+    def _get_hypervisor_version(self):
+        """Get hypervisor version.
+        :returns: hypervisor version (ex. 12003)
+        """
+        version = self._conn_cimv2.Win32_OperatingSystem()[0]\
+            .Version.replace('.', '')
+        LOG.info(_('Windows version: %s ') % version)
+        return version
+
+    def update_available_resource(self, context, host):
+        """Updates compute manager resource info on ComputeNode table.
+
+        This method is called as an periodic tasks and is used only
+        in live migration currently.
+
+        :param ctxt: security context
+        :param host: hostname that compute manager is currently running
+
+        """
+
+        try:
+            service_ref = db.service_get_all_compute_by_host(context, host)[0]
+        except exception.NotFound:
+            raise exception.ComputeServiceUnavailable(host=host)
+
+        # Updating host information
+        # TODO(alexpilotti) implemented cpu_info
+        dic = {'vcpus': self._get_vcpu_total(),
+               'memory_mb': self._get_memory_mb_total(),
+               'local_gb': self._get_local_gb_total(),
+               'vcpus_used': self._get_vcpu_used(),
+               'memory_mb_used': self._get_memory_mb_used(),
+               'local_gb_used': self._get_local_gb_used(),
+               'hypervisor_type': "hyperv",
+               'hypervisor_version': self._get_hypervisor_version(),
+               'cpu_info': "unknown",
+               'service_id': service_ref['id'],
+               'disk_available_least': 1}
+
+        compute_node_ref = service_ref['compute_node']
+        if not compute_node_ref:
+            LOG.info(_('Compute_service record created for %s ') % host)
+            db.compute_node_create(context, dic)
+        else:
+            LOG.info(_('Compute_service record updated for %s ') % host)
+            db.compute_node_update(context, compute_node_ref[0]['id'], dic)
+
+    def _cache_image(self, fn, target, fname, cow=False, Size=None,
+        *args, **kwargs):
+        """Wrapper for a method that creates an image that caches the image.
+
+        This wrapper will save the image into a common store and create a
+        copy for use by the hypervisor.
+
+        The underlying method should specify a kwarg of target representing
+        where the image will be saved.
+
+        fname is used as the filename of the base image.  The filename needs
+        to be unique to a given image.
+
+        If cow is True, it will make a CoW image instead of a copy.
+        """
+        @utils.synchronized(fname)
+        def call_if_not_exists(path, fn, *args, **kwargs):
+                if not os.path.exists(path):
+                    fn(target=path, *args, **kwargs)
+
+        if not os.path.exists(target):
+            LOG.debug(_("use_cow_image:%s"), cow)
+            if cow:
+                base = self._vmutils.get_base_vhd_path(fname)
+                call_if_not_exists(base, fn, *args, **kwargs)
+
+                image_service = self._conn.query(
+                    "Select * from Msvm_ImageManagementService")[0]
+                (job, ret_val) = \
+                    image_service.CreateDifferencingVirtualHardDisk(
+                        Path=target, ParentPath=base)
+                LOG.debug(
+                    "Creating difference disk: JobID=%s, Source=%s, Target=%s",
+                    job, base, target)
+                if ret_val == constants.WMI_JOB_STATUS_STARTED:
+                    success = self._vmutils.check_job_status(job)
+                else:
+                    success = (ret_val == 0)
+
+                if not success:
+                    raise vmutils.HyperVException(
+                        _('Failed to create Difference Disk from '
+                            '%(base)s to %(target)s') % locals())
+
+            else:
+                call_if_not_exists(target, fn, *args, **kwargs)
diff --git a/nova/virt/hyperv/vmutils.py b/nova/virt/hyperv/vmutils.py
new file mode 100644
index 000000000..2e54e6d47
--- /dev/null
+++ b/nova/virt/hyperv/vmutils.py
@@ -0,0 +1,146 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 Cloudbase Solutions Srl / Pedro Navarro Perez
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Utility class for VM related operations.
+"""
+
+import os
+import shutil
+import sys
+import time
+import uuid
+
+from nova import exception
+from nova import flags
+from nova.openstack.common import log as logging
+from nova.virt.hyperv import constants
+from nova.virt import images
+
+# Check needed for unit testing on Unix
+if sys.platform == 'win32':
+    import wmi
+
+FLAGS = flags.FLAGS
+LOG = logging.getLogger(__name__)
+
+
+class HyperVException(exception.NovaException):
+    def __init__(self, message=None):
+        super(HyperVException, self).__init__(message)
+
+
+class VMUtils(object):
+    def lookup(self, conn, i):
+        vms = conn.Msvm_ComputerSystem(ElementName=i)
+        n = len(vms)
+        if n == 0:
+            return None
+        elif n > 1:
+            raise HyperVException(_('duplicate name found: %s') % i)
+        else:
+            return vms[0].ElementName
+
+    #TODO(alexpilotti): use the reactor to poll instead of sleep
+    def check_job_status(self, jobpath):
+        """Poll WMI job state for completion"""
+        job_wmi_path = jobpath.replace('\\', '/')
+        job = wmi.WMI(moniker=job_wmi_path)
+
+        while job.JobState == constants.WMI_JOB_STATE_RUNNING:
+            time.sleep(0.1)
+            job = wmi.WMI(moniker=job_wmi_path)
+        if job.JobState != constants.WMI_JOB_STATE_COMPLETED:
+            LOG.debug(_("WMI job failed: %(ErrorSummaryDescription)s - "
+                "%(ErrorDescription)s - %(ErrorCode)s") % job)
+            return False
+        desc = job.Description
+        elap = job.ElapsedTime
+        LOG.debug(_("WMI job succeeded: %(desc)s, Elapsed=%(elap)s ")
+                % locals())
+        return True
+
+    def get_vhd_path(self, instance_name):
+        base_vhd_folder = os.path.join(FLAGS.instances_path, instance_name)
+        if not os.path.exists(base_vhd_folder):
+                LOG.debug(_('Creating folder %s '), base_vhd_folder)
+                os.makedirs(base_vhd_folder)
+        return os.path.join(base_vhd_folder, instance_name + ".vhd")
+
+    def get_base_vhd_path(self, image_name):
+        base_dir = os.path.join(FLAGS.instances_path, '_base')
+        if not os.path.exists(base_dir):
+            os.makedirs(base_dir)
+        return os.path.join(base_dir, image_name + ".vhd")
+
+    def make_export_path(self, instance_name):
+        export_folder = os.path.join(FLAGS.instances_path, "export",
+                instance_name)
+        if os.path.isdir(export_folder):
+            LOG.debug(_('Removing existing folder %s '), export_folder)
+            shutil.rmtree(export_folder)
+        LOG.debug(_('Creating folder %s '), export_folder)
+        os.makedirs(export_folder)
+        return export_folder
+
+    def clone_wmi_obj(self, conn, wmi_class, wmi_obj):
+        """Clone a WMI object"""
+        cl = conn.__getattr__(wmi_class)  # get the class
+        newinst = cl.new()
+        #Copy the properties from the original.
+        for prop in wmi_obj._properties:
+            if prop == "VirtualSystemIdentifiers":
+                strguid = []
+                strguid.append(str(uuid.uuid4()))
+                newinst.Properties_.Item(prop).Value = strguid
+            else:
+                newinst.Properties_.Item(prop).Value = \
+                    wmi_obj.Properties_.Item(prop).Value
+        return newinst
+
+    def add_virt_resource(self, conn, res_setting_data, target_vm):
+        """Add a new resource (disk/nic) to the VM"""
+        vs_man_svc = conn.Msvm_VirtualSystemManagementService()[0]
+        (job, new_resources, ret_val) = vs_man_svc.\
+                    AddVirtualSystemResources([res_setting_data.GetText_(1)],
+                                                target_vm.path_())
+        success = True
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self.check_job_status(job)
+        else:
+            success = (ret_val == 0)
+        if success:
+            return new_resources
+        else:
+            return None
+
+    def remove_virt_resource(self, conn, res_setting_data, target_vm):
+        """Add a new resource (disk/nic) to the VM"""
+        vs_man_svc = conn.Msvm_VirtualSystemManagementService()[0]
+        (job, ret_val) = vs_man_svc.\
+                    RemoveVirtualSystemResources([res_setting_data.path_()],
+                                                target_vm.path_())
+        success = True
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self.check_job_status(job)
+        else:
+            success = (ret_val == 0)
+        return success
+
+    def fetch_image(self, target, context, image_id, user, project,
+        *args, **kwargs):
+        images.fetch(context, image_id, target, user, project)
diff --git a/nova/virt/hyperv/volumeops.py b/nova/virt/hyperv/volumeops.py
new file mode 100644
index 000000000..a8e5299c0
--- /dev/null
+++ b/nova/virt/hyperv/volumeops.py
@@ -0,0 +1,297 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 Pedro Navarro Perez
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Management class for Storage-related functions (attach, detach, etc).
+"""
+import time
+
+from nova import block_device
+from nova import flags
+from nova.openstack.common import cfg
+from nova.openstack.common import log as logging
+from nova.virt import driver
+from nova.virt.hyperv import baseops
+from nova.virt.hyperv import vmutils
+from nova.virt.hyperv import volumeutils
+
+LOG = logging.getLogger(__name__)
+
+hyper_volumeops_opts = [
+    cfg.StrOpt('hyperv_attaching_volume_retry_count',
+        default=10,
+        help='The number of times we retry on attaching volume '),
+    cfg.StrOpt('hyperv_wait_between_attach_retry',
+        default=5,
+        help='The seconds to wait between an volume attachment attempt'),
+    ]
+
+FLAGS = flags.FLAGS
+FLAGS.register_opts(hyper_volumeops_opts)
+
+
+class VolumeOps(baseops.BaseOps):
+    """
+    Management class for Volume-related tasks
+    """
+
+    def __init__(self):
+        super(VolumeOps, self).__init__()
+
+        self._vmutils = vmutils.VMUtils()
+        self._driver = driver
+        self._block_device = block_device
+        self._time = time
+        self._initiator = None
+        self._default_root_device = 'vda'
+        self._attaching_volume_retry_count = \
+            FLAGS.hyperv_attaching_volume_retry_count
+        self._wait_between_attach_retry = \
+            FLAGS.hyperv_wait_between_attach_retry
+        self._volutils = volumeutils.VolumeUtils()
+
+    def attach_boot_volume(self, block_device_info, vm_name):
+        """Attach the boot volume to the IDE controller"""
+        LOG.debug(_("block device info: %s"), block_device_info)
+        ebs_root = self._driver.block_device_info_get_mapping(
+            block_device_info)[0]
+        connection_info = ebs_root['connection_info']
+        data = connection_info['data']
+        target_lun = data['target_lun']
+        target_iqn = data['target_iqn']
+        target_portal = data['target_portal']
+        self._volutils.login_storage_target(target_lun, target_iqn,
+            target_portal)
+        try:
+            #Getting the mounted disk
+            mounted_disk = self._get_mounted_disk_from_lun(target_iqn,
+                target_lun)
+            #Attach to IDE controller
+            #Find the IDE controller for the vm.
+            vms = self._conn.MSVM_ComputerSystem(ElementName=vm_name)
+            vm = vms[0]
+            vmsettings = vm.associators(
+                wmi_result_class='Msvm_VirtualSystemSettingData')
+            rasds = vmsettings[0].associators(
+                wmi_result_class='MSVM_ResourceAllocationSettingData')
+            ctrller = [r for r in rasds
+                if r.ResourceSubType == 'Microsoft Emulated IDE Controller'
+                and r.Address == "0"]
+            #Attaching to the same slot as the VHD disk file
+            self._attach_volume_to_controller(ctrller, 0, mounted_disk, vm)
+        except Exception as exn:
+            LOG.exception(_('Attach boot from volume failed: %s'), exn)
+            self._volutils.logout_storage_target(self._conn_wmi, target_iqn)
+            raise vmutils.HyperVException(
+                _('Unable to attach boot volume to instance %s')
+                    % vm_name)
+
+    def volume_in_mapping(self, mount_device, block_device_info):
+        return self._volutils.volume_in_mapping(mount_device,
+            block_device_info)
+
+    def attach_volume(self, connection_info, instance_name, mountpoint):
+        """Attach a volume to the SCSI controller"""
+        LOG.debug(_("Attach_volume: %(connection_info)s, %(instance_name)s,"
+        " %(mountpoint)s") % locals())
+        data = connection_info['data']
+        target_lun = data['target_lun']
+        target_iqn = data['target_iqn']
+        target_portal = data['target_portal']
+        self._volutils.login_storage_target(target_lun, target_iqn,
+            target_portal)
+        try:
+            #Getting the mounted disk
+            mounted_disk = self._get_mounted_disk_from_lun(target_iqn,
+                target_lun)
+            #Find the SCSI controller for the vm
+            vms = self._conn.MSVM_ComputerSystem(ElementName=instance_name)
+            vm = vms[0]
+            vmsettings = vm.associators(
+                wmi_result_class='Msvm_VirtualSystemSettingData')
+            rasds = vmsettings[0].associators(
+                wmi_result_class='MSVM_ResourceAllocationSettingData')
+            ctrller = [r for r in rasds
+                if r.ResourceSubType == 'Microsoft Synthetic SCSI Controller']
+            self._attach_volume_to_controller(
+                ctrller, self._get_free_controller_slot(ctrller[0]),
+                    mounted_disk, vm)
+        except Exception as exn:
+            LOG.exception(_('Attach volume failed: %s'), exn)
+            self._volutils.logout_storage_target(self._conn_wmi, target_iqn)
+            raise vmutils.HyperVException(
+                _('Unable to attach volume to instance %s')
+                    % instance_name)
+
+    def _attach_volume_to_controller(self, controller, address, mounted_disk,
+        instance):
+        """Attach a volume to a controller """
+        #Find the default disk drive object for the vm and clone it.
+        diskdflt = self._conn.query(
+                "SELECT * FROM Msvm_ResourceAllocationSettingData \
+                WHERE ResourceSubType LIKE 'Microsoft Physical Disk Drive'\
+                AND InstanceID LIKE '%Default%'")[0]
+        diskdrive = self._vmutils.clone_wmi_obj(self._conn,
+                'Msvm_ResourceAllocationSettingData', diskdflt)
+        diskdrive.Address = address
+        diskdrive.Parent = controller[0].path_()
+        diskdrive.HostResource = [mounted_disk[0].path_()]
+        new_resources = self._vmutils.add_virt_resource(self._conn, diskdrive,
+            instance)
+        if new_resources is None:
+            raise vmutils.HyperVException(_('Failed to add volume to VM %s') %
+                instance)
+
+    def _get_free_controller_slot(self, scsi_controller):
+        #Getting volumes mounted in the SCSI controller
+        volumes = self._conn.query(
+                "SELECT * FROM Msvm_ResourceAllocationSettingData \
+                WHERE ResourceSubType LIKE 'Microsoft Physical Disk Drive'\
+                AND Parent = '" + scsi_controller.path_() + "'")
+        #Slots starts from 0, so the lenght of the disks gives us the free slot
+        return len(volumes)
+
+    def detach_volume(self, connection_info, instance_name, mountpoint):
+        """Dettach a volume to the SCSI controller"""
+        LOG.debug(_("Detach_volume: %(connection_info)s, %(instance_name)s,"
+        " %(mountpoint)s") % locals())
+        data = connection_info['data']
+        target_lun = data['target_lun']
+        target_iqn = data['target_iqn']
+        #Getting the mounted disk
+        mounted_disk = self._get_mounted_disk_from_lun(target_iqn, target_lun)
+        physical_list = self._conn.query(
+                "SELECT * FROM Msvm_ResourceAllocationSettingData \
+                WHERE ResourceSubType LIKE 'Microsoft Physical Disk Drive'")
+        physical_disk = 0
+        for phydisk in physical_list:
+            host_resource_list = phydisk.HostResource
+            if host_resource_list is None:
+                continue
+            host_resource = str(host_resource_list[0].lower())
+            mounted_disk_path = str(mounted_disk[0].path_().lower())
+            LOG.debug(_("Mounted disk to detach is: %s"), mounted_disk_path)
+            LOG.debug(_("host_resource disk detached is: %s"), host_resource)
+            if host_resource == mounted_disk_path:
+                physical_disk = phydisk
+        LOG.debug(_("Physical disk detached is: %s"), physical_disk)
+        vms = self._conn.MSVM_ComputerSystem(ElementName=instance_name)
+        vm = vms[0]
+        remove_result = self._vmutils.remove_virt_resource(self._conn,
+            physical_disk, vm)
+        if remove_result is False:
+            raise vmutils.HyperVException(
+                _('Failed to remove volume from VM %s') %
+                instance_name)
+        #Sending logout
+        self._volutils.logout_storage_target(self._conn_wmi, target_iqn)
+
+    def get_volume_connector(self, instance):
+        if not self._initiator:
+            self._initiator = self._get_iscsi_initiator()
+            if not self._initiator:
+                LOG.warn(_('Could not determine iscsi initiator name'),
+                         instance=instance)
+        return {
+            'ip': FLAGS.my_ip,
+            'initiator': self._initiator,
+        }
+
+    def _get_iscsi_initiator(self):
+        return self._volutils.get_iscsi_initiator(self._conn_cimv2)
+
+    def _get_mounted_disk_from_lun(self, target_iqn, target_lun):
+        initiator_session = self._conn_wmi.query(
+                "SELECT * FROM MSiSCSIInitiator_SessionClass \
+                WHERE TargetName='" + target_iqn + "'")[0]
+        devices = initiator_session.Devices
+        device_number = None
+        for device in devices:
+            LOG.debug(_("device.InitiatorName: %s"), device.InitiatorName)
+            LOG.debug(_("device.TargetName: %s"), device.TargetName)
+            LOG.debug(_("device.ScsiPortNumber: %s"), device.ScsiPortNumber)
+            LOG.debug(_("device.ScsiPathId: %s"), device.ScsiPathId)
+            LOG.debug(_("device.ScsiTargetId): %s"), device.ScsiTargetId)
+            LOG.debug(_("device.ScsiLun: %s"), device.ScsiLun)
+            LOG.debug(_("device.DeviceInterfaceGuid :%s"),
+                device.DeviceInterfaceGuid)
+            LOG.debug(_("device.DeviceInterfaceName: %s"),
+                device.DeviceInterfaceName)
+            LOG.debug(_("device.LegacyName: %s"), device.LegacyName)
+            LOG.debug(_("device.DeviceType: %s"), device.DeviceType)
+            LOG.debug(_("device.DeviceNumber %s"), device.DeviceNumber)
+            LOG.debug(_("device.PartitionNumber :%s"), device.PartitionNumber)
+            scsi_lun = device.ScsiLun
+            if scsi_lun == target_lun:
+                device_number = device.DeviceNumber
+        if device_number is None:
+            raise vmutils.HyperVException(
+                _('Unable to find a mounted disk for'
+                    ' target_iqn: %s') % target_iqn)
+        LOG.debug(_("Device number : %s"), device_number)
+        LOG.debug(_("Target lun : %s"), target_lun)
+        #Finding Mounted disk drive
+        for i in range(1, self._attaching_volume_retry_count):
+            mounted_disk = self._conn.query(
+                "SELECT * FROM Msvm_DiskDrive WHERE DriveNumber=" +
+                    str(device_number) + "")
+            LOG.debug(_("Mounted disk is: %s"), mounted_disk)
+            if len(mounted_disk) > 0:
+                break
+            self._time.sleep(self._wait_between_attach_retry)
+        mounted_disk = self._conn.query(
+                "SELECT * FROM Msvm_DiskDrive WHERE DriveNumber=" +
+                    str(device_number) + "")
+        LOG.debug(_("Mounted disk is: %s"), mounted_disk)
+        if len(mounted_disk) == 0:
+            raise vmutils.HyperVException(
+                _('Unable to find a mounted disk for'
+                    ' target_iqn: %s') % target_iqn)
+        return mounted_disk
+
+    def disconnect_volume(self, physical_drive_path):
+        #Get the session_id of the ISCSI connection
+        session_id = self._get_session_id_from_mounted_disk(
+            physical_drive_path)
+        #Logging out the target
+        self._volutils.execute_log_out(session_id)
+
+    def _get_session_id_from_mounted_disk(self, physical_drive_path):
+        drive_number = self._get_drive_number_from_disk_path(
+            physical_drive_path)
+        LOG.debug(_("Drive number to disconnect is: %s"), drive_number)
+        initiator_sessions = self._conn_wmi.query(
+                "SELECT * FROM MSiSCSIInitiator_SessionClass")
+        for initiator_session in initiator_sessions:
+            devices = initiator_session.Devices
+            for device in devices:
+                deviceNumber = str(device.DeviceNumber)
+                LOG.debug(_("DeviceNumber : %s"), deviceNumber)
+                if deviceNumber == drive_number:
+                    return initiator_session.SessionId
+
+    def _get_drive_number_from_disk_path(self, disk_path):
+        LOG.debug(_("Disk path to parse: %s"), disk_path)
+        start_device_id = disk_path.find('"', disk_path.find('DeviceID'))
+        LOG.debug(_("start_device_id: %s"), start_device_id)
+        end_device_id = disk_path.find('"', start_device_id + 1)
+        LOG.debug(_("end_device_id: %s"), end_device_id)
+        deviceID = disk_path[start_device_id + 1:end_device_id]
+        return deviceID[deviceID.find("\\") + 2:]
+
+    def get_default_root_device(self):
+        return self._default_root_device
diff --git a/nova/virt/hyperv/volumeutils.py b/nova/virt/hyperv/volumeutils.py
new file mode 100644
index 000000000..018a4c278
--- /dev/null
+++ b/nova/virt/hyperv/volumeutils.py
@@ -0,0 +1,122 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+#
+# Copyright 2012 Pedro Navarro Perez
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Helper methods for operations related to the management of volumes,
+and storage repositories
+"""
+
+import subprocess
+import sys
+import time
+
+from nova import block_device
+from nova import flags
+from nova.openstack.common import log as logging
+from nova.virt import driver
+from nova.virt.hyperv import vmutils
+
+# Check needed for unit testing on Unix
+if sys.platform == 'win32':
+    import _winreg
+
+LOG = logging.getLogger(__name__)
+FLAGS = flags.FLAGS
+
+
+class VolumeUtils(object):
+        def execute(self, *args, **kwargs):
+            proc = subprocess.Popen(
+                [args],
+                stdin=subprocess.PIPE,
+                stdout=subprocess.PIPE,
+                stderr=subprocess.STDOUT,
+            )
+            stdout_value, stderr_value = proc.communicate()
+            if stdout_value.find('The operation completed successfully') == -1:
+                raise vmutils.HyperVException(_('An error has occurred when '
+                    'calling the iscsi initiator: %s') % stdout_value)
+
+        def get_iscsi_initiator(self, cim_conn):
+            """Get iscsi initiator name for this machine"""
+
+            computer_system = cim_conn.Win32_ComputerSystem()[0]
+            hostname = computer_system.name
+            keypath = \
+               r"SOFTWARE\Microsoft\Windows NT\CurrentVersion\iSCSI\Discovery"
+            try:
+                key = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, keypath, 0,
+                    _winreg.KEY_ALL_ACCESS)
+                temp = _winreg.QueryValueEx(key, 'DefaultInitiatorName')
+                initiator_name = str(temp[0])
+                _winreg.CloseKey(key)
+            except Exception:
+                LOG.info(_("The ISCSI initiator name can't be found. "
+                    "Choosing the default one"))
+                computer_system = cim_conn.Win32_ComputerSystem()[0]
+                initiator_name = "iqn.1991-05.com.microsoft:" + \
+                    hostname.lower()
+            return {
+                'ip': FLAGS.my_ip,
+                'initiator': initiator_name,
+            }
+
+        def login_storage_target(self, target_lun, target_iqn, target_portal):
+            """Add target portal, list targets and logins to the target"""
+            separator = target_portal.find(':')
+            target_address = target_portal[:separator]
+            target_port = target_portal[separator + 1:]
+            #Adding target portal to iscsi initiator. Sending targets
+            self.execute('iscsicli.exe ' + 'AddTargetPortal ' +
+                target_address + ' ' + target_port +
+                ' * * * * * * * * * * * * *')
+            #Listing targets
+            self.execute('iscsicli.exe ' + 'LisTargets')
+            #Sending login
+            self.execute('iscsicli.exe ' + 'qlogintarget ' + target_iqn)
+            #Waiting the disk to be mounted. Research this
+            time.sleep(FLAGS.hyperv_wait_between_attach_retry)
+
+        def logout_storage_target(self, _conn_wmi, target_iqn):
+            """ Logs out storage target through its session id """
+
+            sessions = _conn_wmi.query(
+                    "SELECT * FROM MSiSCSIInitiator_SessionClass \
+                    WHERE TargetName='" + target_iqn + "'")
+            for session in sessions:
+                self.execute_log_out(session.SessionId)
+
+        def execute_log_out(self, session_id):
+            """ Executes log out of the session described by its session ID """
+            self.execute('iscsicli.exe ' + 'logouttarget ' + session_id)
+
+        def volume_in_mapping(self, mount_device, block_device_info):
+            block_device_list = [block_device.strip_dev(vol['mount_device'])
+                                 for vol in
+                                 driver.block_device_info_get_mapping(
+                                     block_device_info)]
+            swap = driver.block_device_info_get_swap(block_device_info)
+            if driver.swap_is_usable(swap):
+                block_device_list.append(
+                    block_device.strip_dev(swap['device_name']))
+            block_device_list += [block_device.strip_dev(
+                ephemeral['device_name'])
+                for ephemeral in
+                driver.block_device_info_get_ephemerals(block_device_info)]
+
+            LOG.debug(_("block_device_list %s"), block_device_list)
+            return block_device.strip_dev(mount_device) in block_device_list
-- 
cgit