From 748ff1c4cc249be6c3de30429ec0092a7832af33 Mon Sep 17 00:00:00 2001
From: Cole Robinson <crobinso@redhat.com>
Date: Sun, 19 Jan 2014 10:37:14 -0500
Subject: virt-xml: Initial commit, basic set of tests

---
 .gitignore                                         |   1 +
 man/virt-xml.pod                                   |  77 ++++++
 setup.py                                           |  13 +-
 tests/__init__.py                                  |   1 +
 tests/cli-test-xml/compare/virtxml-edit-all.xml    |  30 +++
 .../cli-test-xml/compare/virtxml-edit-neg-num.xml  |  13 +
 .../cli-test-xml/compare/virtxml-edit-pos-num.xml  |  13 +
 .../compare/virtxml-edit-select-disk-target.xml    |  13 +
 .../compare/virtxml-edit-select-network-mac.xml    |  13 +
 .../compare/virtxml-edit-select-sound-model.xml    |  13 +
 .../compare/virtxml-edit-simple-boot.xml           |  17 ++
 .../compare/virtxml-edit-simple-channel.xml        |  13 +
 .../compare/virtxml-edit-simple-clock.xml          |  19 ++
 .../compare/virtxml-edit-simple-console.xml        |  13 +
 .../compare/virtxml-edit-simple-controller.xml     |  13 +
 .../compare/virtxml-edit-simple-cpu.xml            |  24 ++
 .../compare/virtxml-edit-simple-disk.xml           |  16 ++
 .../compare/virtxml-edit-simple-features.xml       |  17 ++
 .../compare/virtxml-edit-simple-filesystem.xml     |  18 ++
 .../compare/virtxml-edit-simple-graphics.xml       |  13 +
 .../compare/virtxml-edit-simple-host-device.xml    |  17 ++
 .../compare/virtxml-edit-simple-memballoon.xml     |  13 +
 .../compare/virtxml-edit-simple-network.xml        |  19 ++
 .../compare/virtxml-edit-simple-numatune.xml       |  13 +
 .../compare/virtxml-edit-simple-parallel.xml       |  15 ++
 .../compare/virtxml-edit-simple-redirdev.xml       |  15 ++
 .../compare/virtxml-edit-simple-rng.xml            |  13 +
 .../compare/virtxml-edit-simple-security.xml       |  12 +
 .../compare/virtxml-edit-simple-serial.xml         |  13 +
 .../compare/virtxml-edit-simple-smartcard.xml      |  13 +
 .../compare/virtxml-edit-simple-soundhw.xml        |  13 +
 .../compare/virtxml-edit-simple-tpm.xml            |  13 +
 .../compare/virtxml-edit-simple-vcpus.xml          |  21 ++
 .../compare/virtxml-edit-simple-video.xml          |  13 +
 .../compare/virtxml-edit-simple-watchdog.xml       |  13 +
 tests/cli-test-xml/compare/virtxml-print-xml.xml   |  17 ++
 tests/clitest.py                                   |  93 ++++++-
 tests/testdriver.xml                               |  31 ++-
 virt-manager.spec.in                               |   4 +
 virt-xml                                           | 283 +++++++++++++++++++++
 virtinst/cli.py                                    | 118 +++++++--
 41 files changed, 1064 insertions(+), 48 deletions(-)
 create mode 100644 man/virt-xml.pod
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-all.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-neg-num.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-pos-num.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-select-disk-target.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-select-network-mac.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-select-sound-model.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-boot.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-channel.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-clock.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-console.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-controller.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-cpu.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-disk.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-features.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-filesystem.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-graphics.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-host-device.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-memballoon.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-network.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-numatune.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-parallel.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-redirdev.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-rng.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-security.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-serial.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-smartcard.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-soundhw.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-tpm.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-vcpus.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-video.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-edit-simple-watchdog.xml
 create mode 100644 tests/cli-test-xml/compare/virtxml-print-xml.xml
 create mode 100755 virt-xml

diff --git a/.gitignore b/.gitignore
index 4171678c..3ee600eb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,7 @@ po/virt-manager.pot
 /man/virt-image.1
 /man/virt-convert.1
 /man/virt-image.5
+/man/virt-xml.1
 
 /virt-manager.spec
 /virtcli/cli.cfg
diff --git a/man/virt-xml.pod b/man/virt-xml.pod
new file mode 100644
index 00000000..720995fd
--- /dev/null
+++ b/man/virt-xml.pod
@@ -0,0 +1,77 @@
+=pod
+
+=head1 NAME
+
+virt-xml - XXX
+
+=head1 SYNOPSIS
+
+B<virt-xml> XXX
+
+=head1 DESCRIPTION
+
+B<virt-xml> XXX
+
+=head1 OPTIONS
+
+=over 4
+
+=item -h, --help
+
+Show the help message and exit
+
+=back
+
+=head2 BAR SECTION
+
+=over 2
+
+=item  FOO
+
+FOO
+
+=item  BAR
+
+BAR
+
+=back
+
+=head2 Miscellaneous Options
+
+=over 2
+
+=item -q, --quiet
+
+Avoid verbose output.
+
+=item -d, --debug
+
+Print debugging information
+
+=item --dry-run
+
+Proceed through the conversion process, but don't convert disks or actually
+write any converted files.
+
+=back
+
+=head1 EXAMPLES
+
+XXX
+
+=head1 BUGS
+
+Please see http://virt-manager.org/page/BugReporting
+
+=head1 COPYRIGHT
+
+Copyright (C) Red Hat, Inc, and various contributors.
+This is free software. You may redistribute copies of it under the terms
+of the GNU General Public License C<http://www.gnu.org/licenses/gpl.html>.
+There is NO WARRANTY, to the extent permitted by law.
+
+=head1 SEE ALSO
+
+L<virt-install(1)>, the project website C<http://virt-manager.org>
+
+=cut
diff --git a/setup.py b/setup.py
index 6103f938..b774f898 100755
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@ def _generate_potfiles_in():
         return ret
 
     scripts = ["virt-manager", "virt-install",
-               "virt-clone", "virt-image", "virt-convert"]
+               "virt-clone", "virt-image", "virt-convert", "virt-xml"]
 
     potfiles = "\n".join(scripts) + "\n\n"
     potfiles += "\n".join(find("virtManager", "*.py")) + "\n\n"
@@ -145,7 +145,7 @@ class my_build(build):
 
     def _make_bin_wrappers(self):
         cmds = ["virt-manager", "virt-install", "virt-clone",
-                "virt-image", "virt-convert"]
+                "virt-image", "virt-convert", "virt-xml"]
 
         if not os.path.exists("build"):
             os.mkdir("build")
@@ -559,7 +559,7 @@ class CheckPylint(Command):
 
     def run(self):
         files = ["setup.py", "virt-install", "virt-clone", "virt-image",
-                 "virt-convert", "virt-manager",
+                 "virt-convert", "virt-xml", "virt-manager",
                  "virtcli", "virtinst", "virtconv", "virtManager",
                  "tests"]
 
@@ -590,7 +590,8 @@ setup(
         "build/virt-clone",
         "build/virt-install",
         "build/virt-image",
-        "build/virt-convert"]),
+        "build/virt-convert",
+        "build/virt-xml"]),
 
     data_files=[
         ("share/virt-manager/", [
@@ -599,6 +600,7 @@ setup(
             "virt-clone",
             "virt-image",
             "virt-convert",
+            "virt-xml",
         ]),
         ("share/glib-2.0/schemas",
          ["data/org.virt-manager.virt-manager.gschema.xml"]),
@@ -609,7 +611,8 @@ setup(
             "man/virt-install.1",
             "man/virt-clone.1",
             "man/virt-image.1",
-            "man/virt-convert.1"
+            "man/virt-convert.1",
+            "man/virt-xml.1"
         ]),
         ("share/man/man5", ["man/virt-image.5"]),
 
diff --git a/tests/__init__.py b/tests/__init__.py
index 4ab1002c..237cbb83 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -70,6 +70,7 @@ virtinstall = _import("virtinstall", "virt-install")
 virtimage = _import("virtimage", "virt-image")
 virtclone = _import("virtclone", "virt-clone")
 virtconvert = _import("virtconvert", "virt-convert")
+virtxml = _import("virtxml", "virt-xml")
 
 # Variable used to store a local iso or dir path to check for a distro
 # Specified via 'python setup.py test_urls --path"
diff --git a/tests/cli-test-xml/compare/virtxml-edit-all.xml b/tests/cli-test-xml/compare/virtxml-edit-all.xml
new file mode 100644
index 00000000..f239b0fd
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-all.xml
@@ -0,0 +1,30 @@
+--- Original XML
++++ Altered XML
+@@ -265,21 +265,25 @@
+         <vendor id="0x04b3"/>
+         <product id="0x4485"/>
+       </source>
++      <driver name="vfio"/>
+     </hostdev>
+     <hostdev mode="subsystem" type="usb" managed="yes">
+       <source>
+         <address bus="3" device="2"/>
+       </source>
++      <driver name="vfio"/>
+     </hostdev>
+     <hostdev mode="subsystem" type="pci" managed="yes">
+       <source>
+         <address domain="0x0000" bus="0x00" slot="0x19" function="0x0"/>
+       </source>
++      <driver name="vfio"/>
+     </hostdev>
+     <hostdev mode="subsystem" type="pci" managed="yes">
+       <source>
+         <address domain="0x0003" bus="0x00" slot="0x19" function="0x0"/>
+       </source>
++      <driver name="vfio"/>
+     </hostdev>
+     <redirdev bus="usb" type="tcp">
+       <source mode="connect" host="localhost" service="4000"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-neg-num.xml b/tests/cli-test-xml/compare/virtxml-edit-neg-num.xml
new file mode 100644
index 00000000..aea38550
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-neg-num.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -258,7 +258,7 @@
+       <model type="vmvga" vram="9216" heads="1"/>
+     </video>
+     <video>
+-      <model type="cirrus" vram="10240" heads="3"/>
++      <model type="qxl" vram="10240" heads="3"/>
+     </video>
+     <hostdev mode="subsystem" type="usb" managed="yes">
+       <source>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-pos-num.xml b/tests/cli-test-xml/compare/virtxml-edit-pos-num.xml
new file mode 100644
index 00000000..10a64999
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-pos-num.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -253,7 +253,7 @@
+     </graphics>
+     <sound model="sb16"/>
+     <sound model="es1370"/>
+-    <sound model="ich6"/>
++    <sound model="pcspk"/>
+     <video>
+       <model type="vmvga" vram="9216" heads="1"/>
+     </video>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-select-disk-target.xml b/tests/cli-test-xml/compare/virtxml-edit-select-disk-target.xml
new file mode 100644
index 00000000..27b4b341
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-select-disk-target.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -65,7 +65,7 @@
+       <address type="drive" controller="0" bus="0" target="0" unit="1"/>
+     </disk>
+     <disk type="file" device="disk">
+-      <source file="/tmp/foobar"/>
++      <source file="/dev/null"/>
+       <target dev="hda" bus="ide"/>
+       <iotune>
+         <read_bytes_sec>5242880</read_bytes_sec>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-select-network-mac.xml b/tests/cli-test-xml/compare/virtxml-edit-select-network-mac.xml
new file mode 100644
index 00000000..2d1fe324
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-select-network-mac.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -159,7 +159,7 @@
+     <interface type="ethernet">
+       <mac address="00:11:7f:33:44:55"/>
+       <script path="/etc/qemu-ifup"/>
+-      <target dev="nic02"/>
++      <target dev="nic55"/>
+     </interface>
+     <interface type="direct">
+       <mac address="f0:11:22:33:44:5f"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-select-sound-model.xml b/tests/cli-test-xml/compare/virtxml-edit-select-sound-model.xml
new file mode 100644
index 00000000..10a64999
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-select-sound-model.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -253,7 +253,7 @@
+     </graphics>
+     <sound model="sb16"/>
+     <sound model="es1370"/>
+-    <sound model="ich6"/>
++    <sound model="pcspk"/>
+     <video>
+       <model type="vmvga" vram="9216" heads="1"/>
+     </video>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-boot.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-boot.xml
new file mode 100644
index 00000000..76858bae
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-boot.xml
@@ -0,0 +1,17 @@
+--- Original XML
++++ Altered XML
+@@ -15,8 +15,10 @@
+   </numatune>
+   <os>
+     <type arch="i686">hvm</type>
+-    <loader>/usr/lib/xen/boot/hvmloader</loader>
+-    <boot dev="hd"/>
++    <loader>foo.bar</loader>
++    <boot dev="network"/>
++    <bios useserial="yes"/>
++    <init>/bin/bash</init>
+   </os>
+   <features>
+     <acpi/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-channel.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-channel.xml
new file mode 100644
index 00000000..59738b52
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-channel.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -214,7 +214,7 @@
+     <console type="pty">
+       <target type="uml" port="1"/>
+     </console>
+-    <channel type="pipe">
++    <channel type="null">
+       <source path="/tmp/guestfwd"/>
+       <target type="guestfwd" address="10.0.2.1" port="4600"/>
+     </channel>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-clock.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-clock.xml
new file mode 100644
index 00000000..21a00dda
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-clock.xml
@@ -0,0 +1,19 @@
+--- Original XML
++++ Altered XML
+@@ -44,10 +44,11 @@
+     <feature policy="require" name="xtpr"/>
+     <feature policy="require" name="acpi"/>
+   </cpu>
+-  <clock offset="utc">
+-    <timer name="rtc" tickpolicy="catchup"/>
++  <clock offset="localtime">
++    <timer name="rtc" tickpolicy="merge"/>
+     <timer name="pit" tickpolicy="delay"/>
+-    <timer name="hpet" present="no"/>
++    <timer name="hpet" present="yes"/>
++    <timer name="kvmclock" present="no"/>
+   </clock>
+   <on_poweroff>destroy</on_poweroff>
+   <on_reboot>restart</on_reboot>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-console.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-console.xml
new file mode 100644
index 00000000..a496d452
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-console.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -209,7 +209,7 @@
+       <target port="2"/>
+     </parallel>
+     <console type="pty">
+-      <target type="virtio" port="0"/>
++      <target type="serial" port="0"/>
+     </console>
+     <console type="pty">
+       <target type="uml" port="1"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-controller.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-controller.xml
new file mode 100644
index 00000000..b59e93da
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-controller.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -98,7 +98,7 @@
+       <source file="/tmp/foobar4"/>
+       <target dev="xvdc" bus="xen"/>
+     </disk>
+-    <controller type="scsi" index="0" model="virtio-scsi"/>
++    <controller type="scsi" index="2" model="lsilogic"/>
+     <controller type="usb" index="0"/>
+     <controller type="fdc" index="0"/>
+     <controller type="ide" index="0"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-cpu.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-cpu.xml
new file mode 100644
index 00000000..532ce286
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-cpu.xml
@@ -0,0 +1,24 @@
+--- Original XML
++++ Altered XML
+@@ -28,9 +28,9 @@
+     </hyperv>
+   </features>
+   <cpu mode="custom" match="exact">
+-    <model fallback="allow">core2duo</model>
++    <model fallback="allow">pentium2</model>
+     <vendor>Intel</vendor>
+-    <feature policy="require" name="pbe"/>
++    <feature policy="forbid" name="pbe"/>
+     <feature policy="require" name="tm2"/>
+     <feature policy="require" name="est"/>
+     <feature policy="require" name="ss"/>
+@@ -43,6 +43,7 @@
+     <feature policy="require" name="ds_cpl"/>
+     <feature policy="require" name="xtpr"/>
+     <feature policy="require" name="acpi"/>
++    <feature name="x2apic" policy="force"/>
+   </cpu>
+   <clock offset="utc">
+     <timer name="rtc" tickpolicy="catchup"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-disk.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-disk.xml
new file mode 100644
index 00000000..fad2b8b8
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-disk.xml
@@ -0,0 +1,16 @@
+--- Original XML
++++ Altered XML
+@@ -55,9 +55,10 @@
+   <devices>
+     <emulator>/usr/lib/xen/bin/qemu-dm</emulator>
+     <disk type="block" device="floppy">
+-      <source dev="/dev/null"/>
++      <source dev="/dev/zero" startupPolicy="optional"/>
+       <target dev="fda" bus="fdc"/>
+       <address type="drive" controller="0" bus="0" target="0" unit="0"/>
++      <readonly/>
+     </disk>
+     <disk type="dir" device="floppy">
+       <source dir="/tmp"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-features.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-features.xml
new file mode 100644
index 00000000..36fb2e0e
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-features.xml
@@ -0,0 +1,17 @@
+--- Original XML
++++ Altered XML
+@@ -19,10 +19,9 @@
+     <boot dev="hd"/>
+   </os>
+   <features>
+-    <acpi/>
+-    <apic eoi="off"/>
++    <apic eoi="on"/>
+     <hyperv>
+-      <relaxed state="on"/>
++      <relaxed state="off"/>
+       <vapic state="on"/>
+       <spinlocks state="on" retries="12287"/>
+     </hyperv>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-filesystem.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-filesystem.xml
new file mode 100644
index 00000000..720cb540
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-filesystem.xml
@@ -0,0 +1,18 @@
+--- Original XML
++++ Altered XML
+@@ -105,10 +105,10 @@
+     <controller type="virtio-serial" index="1"/>
+     <controller type="virtio-serial" index="0"/>
+     <controller type="ccid" index="0"/>
+-    <filesystem type="mount" accessmode="passthrough">
++    <filesystem type="mount" accessmode="mapped">
+       <driver type="handle"/>
+-      <source dir="/foo/bar"/>
+-      <target dir="/bar/baz"/>
++      <source dir="/1/2/3"/>
++      <target dir="/4/5/6"/>
+     </filesystem>
+     <filesystem type="template" accessmode="passthrough">
+       <source name="template_fedora"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-graphics.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-graphics.xml
new file mode 100644
index 00000000..139f7c9b
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-graphics.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -238,7 +238,7 @@
+       </backend>
+     </tpm>
+     <input type="mouse" bus="ps2"/>
+-    <graphics type="sdl" display=":3.4" xauth="/testdir/.Xauthority" fullscreen="yes"/>
++    <graphics type="sdl" display=":3.4" xauth="/testdir/.Xauthority" fullscreen="yes" tlsPort="5902" keymap="ja"/>
+     <graphics type="vnc" port="-1" autoport="yes"/>
+     <graphics type="vnc" port="-1" autoport="yes" listen="1.2.3.4" keymap="fi">
+       <listen type="address" address="1.2.3.4"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-host-device.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-host-device.xml
new file mode 100644
index 00000000..eef05b17
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-host-device.xml
@@ -0,0 +1,17 @@
+--- Original XML
++++ Altered XML
+@@ -262,9 +262,10 @@
+     </video>
+     <hostdev mode="subsystem" type="usb" managed="yes">
+       <source>
+-        <vendor id="0x04b3"/>
+-        <product id="0x4485"/>
++        <vendor id="0x0781"/>
++        <product id="0x5151"/>
+       </source>
++      <driver name="vfio"/>
+     </hostdev>
+     <hostdev mode="subsystem" type="usb" managed="yes">
+       <source>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-memballoon.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-memballoon.xml
new file mode 100644
index 00000000..e38ec27c
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-memballoon.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -293,7 +293,7 @@
+       <usbdev allow="no"/>
+     </redirfilter>
+     <watchdog model="ib700" action="poweroff"/>
+-    <memballoon model="virtio"/>
++    <memballoon model="none"/>
+     <rng model="virtio">
+       <rate bytes="1234" period="2000"/>
+       <backend model="egd" type="tcp">
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-network.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-network.xml
new file mode 100644
index 00000000..288f9061
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-network.xml
@@ -0,0 +1,19 @@
+--- Original XML
++++ Altered XML
+@@ -124,11 +124,10 @@
+       <source dir="/foo/bar"/>
+       <target dir="/bar/baz"/>
+     </filesystem>
+-    <interface type="network">
+-      <mac address="22:22:33:54:32:10"/>
+-      <source network="default"/>
++    <interface type="bridge">
++      <source bridge="br0"/>
+       <target dev="testnet0"/>
+-      <model type="e1000"/>
++      <model type="virtio"/>
+     </interface>
+     <interface type="network">
+       <mac address="22:11:11:11:11:11"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-numatune.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-numatune.xml
new file mode 100644
index 00000000..3ee20e84
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-numatune.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -11,7 +11,7 @@
+   </memoryBacking>
+   <vcpu placement="static" cpuset="1-2,5-9,11,13-14">9</vcpu>
+   <numatune>
+-    <memory mode="interleave" placement="auto"/>
++    <memory mode="strict" placement="auto" nodeset="1-5,7"/>
+   </numatune>
+   <os>
+     <type arch="i686">hvm</type>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-parallel.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-parallel.xml
new file mode 100644
index 00000000..2cde1c54
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-parallel.xml
@@ -0,0 +1,15 @@
+--- Original XML
++++ Altered XML
+@@ -195,8 +195,8 @@
+       <protocol type="telnet"/>
+       <target port="1"/>
+     </serial>
+-    <parallel type="file">
+-      <source path="/tmp/foo.log"/>
++    <parallel type="unix">
++      <source path="/some/other/log"/>
+       <target port="0"/>
+     </parallel>
+     <parallel type="unix">
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-redirdev.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-redirdev.xml
new file mode 100644
index 00000000..855e4c83
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-redirdev.xml
@@ -0,0 +1,15 @@
+--- Original XML
++++ Altered XML
+@@ -281,8 +281,8 @@
+         <address domain="0x0003" bus="0x00" slot="0x19" function="0x0"/>
+       </source>
+     </hostdev>
+-    <redirdev bus="usb" type="tcp">
+-      <source mode="connect" host="localhost" service="4000"/>
++    <redirdev bus="usb" type="spicevmc">
++      <source mode="connect" host="example.com" service="12345"/>
+       <protocol type="raw"/>
+     </redirdev>
+     <redirdev bus="usb" type="spicevmc">
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-rng.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-rng.xml
new file mode 100644
index 00000000..396f7699
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-rng.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -295,7 +295,7 @@
+     <watchdog model="ib700" action="poweroff"/>
+     <memballoon model="virtio"/>
+     <rng model="virtio">
+-      <rate bytes="1234" period="2000"/>
++      <rate bytes="3333" period="4444"/>
+       <backend model="egd" type="tcp">
+         <source mode="connect" host="1.2.3.4" service="1234"/>
+         <protocol type="raw"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-security.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-security.xml
new file mode 100644
index 00000000..bfb10aae
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-security.xml
@@ -0,0 +1,12 @@
+--- Original XML
++++ Altered XML
+@@ -302,4 +302,7 @@
+       </backend>
+     </rng>
+   </devices>
++  <seclabel relabel="yes">
++    <label>foo,bar,baz</label>
++  </seclabel>
+ </domain>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-serial.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-serial.xml
new file mode 100644
index 00000000..71884748
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-serial.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -187,7 +187,7 @@
+       <protocol type="raw"/>
+       <address type="ccid" controller="0" slot="3"/>
+     </smartcard>
+-    <serial type="null">
++    <serial type="pty">
+       <target port="0"/>
+     </serial>
+     <serial type="tcp">
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-smartcard.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-smartcard.xml
new file mode 100644
index 00000000..5d1baa4b
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-smartcard.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -170,7 +170,7 @@
+       <target dev="testnet6"/>
+       <address type="pci" domain="0x0000" bus="0x00" slot="0x07" function="0x0"/>
+     </interface>
+-    <smartcard mode="host">
++    <smartcard mode="host" type="spicevmc">
+       <address type="ccid" controller="0" slot="0"/>
+     </smartcard>
+     <smartcard mode="host-certificates">
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-soundhw.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-soundhw.xml
new file mode 100644
index 00000000..3318f8eb
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-soundhw.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -251,7 +251,7 @@
+       <channel name="inputs" mode="secure"/>
+       <channel name="record" mode="insecure"/>
+     </graphics>
+-    <sound model="sb16"/>
++    <sound model="pcspk"/>
+     <sound model="es1370"/>
+     <sound model="ich6"/>
+     <video>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-tpm.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-tpm.xml
new file mode 100644
index 00000000..b3ba4264
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-tpm.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -234,7 +234,7 @@
+     <input type="tablet" bus="usb"/>
+     <tpm model="tpm-tis">
+       <backend type="passthrough">
+-        <device path="/dev/tzz"/>
++        <device path="/dev/tpm"/>
+       </backend>
+     </tpm>
+     <input type="mouse" bus="ps2"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-vcpus.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-vcpus.xml
new file mode 100644
index 00000000..45bcafea
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-vcpus.xml
@@ -0,0 +1,21 @@
+--- Original XML
++++ Altered XML
+@@ -9,7 +9,7 @@
+   <memoryBacking>
+     <hugepages/>
+   </memoryBacking>
+-  <vcpu placement="static" cpuset="1-2,5-9,11,13-14">9</vcpu>
++  <vcpu placement="static" cpuset="1-2,5-9,11,13-14" current="10">20</vcpu>
+   <numatune>
+     <memory mode="interleave" placement="auto"/>
+   </numatune>
+@@ -43,6 +43,7 @@
+     <feature policy="require" name="ds_cpl"/>
+     <feature policy="require" name="xtpr"/>
+     <feature policy="require" name="acpi"/>
++    <topology sockets="4" cores="5" threads="1"/>
+   </cpu>
+   <clock offset="utc">
+     <timer name="rtc" tickpolicy="catchup"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-video.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-video.xml
new file mode 100644
index 00000000..d73bc719
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-video.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -255,7 +255,7 @@
+     <sound model="es1370"/>
+     <sound model="ich6"/>
+     <video>
+-      <model type="vmvga" vram="9216" heads="1"/>
++      <model type="cirrus" vram="9216" heads="1"/>
+     </video>
+     <video>
+       <model type="cirrus" vram="10240" heads="3"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-edit-simple-watchdog.xml b/tests/cli-test-xml/compare/virtxml-edit-simple-watchdog.xml
new file mode 100644
index 00000000..736af59a
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-edit-simple-watchdog.xml
@@ -0,0 +1,13 @@
+--- Original XML
++++ Altered XML
+@@ -292,7 +292,7 @@
+       <usbdev class="0x08" vendor="0x15E1" product="0x2007" version="1.10" allow="yes"/>
+       <usbdev allow="no"/>
+     </redirfilter>
+-    <watchdog model="ib700" action="poweroff"/>
++    <watchdog model="ib700" action="reset"/>
+     <memballoon model="virtio"/>
+     <rng model="virtio">
+       <rate bytes="1234" period="2000"/>
+
+Domain 'test-many-devices' defined successfully.
\ No newline at end of file
diff --git a/tests/cli-test-xml/compare/virtxml-print-xml.xml b/tests/cli-test-xml/compare/virtxml-print-xml.xml
new file mode 100644
index 00000000..cd52f8d3
--- /dev/null
+++ b/tests/cli-test-xml/compare/virtxml-print-xml.xml
@@ -0,0 +1,17 @@
+<domain type="test" id="1">
+  <name>test</name>
+  <uuid>4a64cc71-19c4-2fd0-2323-3050941ea3c3</uuid>
+  <memory unit="KiB">8388608</memory>
+  <currentMemory unit="KiB">2097152</currentMemory>
+  <vcpu placement="static">7</vcpu>
+  <os>
+    <type arch="i686">hvm</type>
+    <boot dev="hd"/>
+  </os>
+  <clock offset="utc"/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+  </devices>
+</domain>
diff --git a/tests/clitest.py b/tests/clitest.py
index 84712fcb..b78b3aee 100644
--- a/tests/clitest.py
+++ b/tests/clitest.py
@@ -30,9 +30,12 @@ import StringIO
 import virtinst.cli
 from virtinst import support
 
-from tests import virtinstall, virtimage, virtclone, virtconvert
+from tests import virtinstall, virtimage, virtclone, virtconvert, virtxml
 from tests import utils
 
+# Enable this to refresh test output
+REGENERATE_OUTPUT = False
+
 os.environ["VIRTCONV_TEST_NO_DISK_CONVERSION"] = "1"
 os.environ["LANG"] = "en_US.UTF-8"
 
@@ -185,6 +188,8 @@ class Command(object):
                     ret = virtimage.main(conn=conn)
                 elif app.count("virt-convert"):
                     ret = virtconvert.main()
+                elif app.count("virt-xml"):
+                    ret = virtxml.main()
             except SystemExit, sys_e:
                 ret = sys_e.code
 
@@ -244,7 +249,7 @@ class Command(object):
 
             if filename:
                 # Generate test files that don't exist yet
-                if not os.path.exists(filename):
+                if REGENERATE_OUTPUT or not os.path.exists(filename):
                     file(filename, "w").write(output)
 
                 utils.diff_compare(output, filename)
@@ -260,23 +265,40 @@ class PromptCheck(object):
     """
     Individual question/response pair for automated --prompt tests
     """
-    def __init__(self, prompt, response=None):
+    def __init__(self, prompt, response=None, num_lines=1):
         self.prompt = prompt
         self.response = response
         if self.response:
             self.response = self.response % test_files
+        self.num_lines = num_lines
 
-    def check(self, proc):
-        out = proc.stdout.readline()
+        self._output = None
 
-        if not out.count(self.prompt):
-            out += "\nContent didn't contain prompt '%s'" % (self.prompt)
-            return False, out
+    def check(self, proc):
+        timeout = 3
+        def _set_output():
+            self._output = ""
+            for ignore in range(self.num_lines):
+                self._output += proc.stdout.readline()
+
+        import threading
+        thread = threading.Thread(target=_set_output)
+        thread.start()
+        thread.join(timeout)
+
+        if thread.isAlive():
+            proc.terminate()
+            return False, self._output + "\nProcess hung on readline()"
+
+        if not self._output.count(self.prompt):
+            self._output += ("\nContent didn't contain prompt '%s'" %
+                             (self.prompt))
+            return False, self._output
 
         if self.response:
             proc.stdin.write(self.response + "\n")
 
-        return True, out
+        return True, self._output
 
 
 class PromptTest(Command):
@@ -725,6 +747,54 @@ c.add_invalid("--hvm --boot kernel=%(TREEDIR)s/pxeboot/vmlinuz,initrd=%(TREEDIR)
 
 
 
+vixml = App("virt-xml")
+c = vixml.add_category("misc", "")
+c.add_valid("--help")  # basic --help test
+c.add_valid("--soundhw=? --tpm=?")  # basic introspection test
+c.add_invalid("--domain test --edit --hostdev driver_name=vfio")  # Guest has no hostdev to edit
+c.add_invalid("--domain test --edit --cpu host-passthrough --boot hd,network")  # Specified more than 1 option
+c.add_invalid("--domain test --edit")  # specified no edit option
+c.add_invalid("--domain test --edit 2 --cpu host-passthrough")  # specifing --edit number where it doesn't make sense
+c.add_invalid("--domain test-many-devices --edit 5 --tpm /dev/tpm")  # device edit out of range
+c.add_compare("--domain test --print-xml --edit --vcpus 7", "virtxml-print-xml")  # test --print-xml
+
+c = vixml.add_category("simple edit diff", "--domain test-many-devices --edit --print-diff --define")
+c.add_compare("--vcpus 10,maxvcpus=20,cores=5,sockets=4,threads=1", "virtxml-edit-simple-vcpus")
+c.add_compare("--cpu model=pentium2,+x2apic,forbid=pbe", "virtxml-edit-simple-cpu")
+c.add_compare("--numatune 1-5,7,mode=strict", "virtxml-edit-simple-numatune")
+c.add_compare("--boot loader=foo.bar,network,useserial=on,init=/bin/bash", "virtxml-edit-simple-boot")
+c.add_compare("--security label=foo,bar,baz,relabel=on", "virtxml-edit-simple-security")
+c.add_compare("--features eoi=on,hyperv_relaxed=off,acpi=", "virtxml-edit-simple-features")
+c.add_compare("--clock offset=localtime,hpet_present=yes,kvmclock_present=no,rtc_tickpolicy=merge", "virtxml-edit-simple-clock")
+c.add_compare("--disk /dev/zero,perms=ro,startup_policy=optional", "virtxml-edit-simple-disk")
+c.add_compare("--network source=br0,type=bridge,model=virtio,mac=", "virtxml-edit-simple-network")
+c.add_compare("--graphics tlsport=5902,keymap=ja", "virtxml-edit-simple-graphics")
+c.add_compare("--controller index=2,model=lsilogic", "virtxml-edit-simple-controller")
+c.add_compare("--smartcard type=spicevmc", "virtxml-edit-simple-smartcard")
+c.add_compare("--redirdev type=spicevmc,server=example.com:12345", "virtxml-edit-simple-redirdev")
+c.add_compare("--tpm path=/dev/tpm", "virtxml-edit-simple-tpm")
+c.add_compare("--rng rate_bytes=3333,rate_period=4444", "virtxml-edit-simple-rng")
+c.add_compare("--watchdog action=reset", "virtxml-edit-simple-watchdog")
+c.add_compare("--memballoon model=none", "virtxml-edit-simple-memballoon")
+c.add_compare("--serial pty", "virtxml-edit-simple-serial")
+c.add_compare("--parallel unix,path=/some/other/log", "virtxml-edit-simple-parallel")
+c.add_compare("--channel null", "virtxml-edit-simple-channel")
+c.add_compare("--console target_type=serial", "virtxml-edit-simple-console")
+c.add_compare("--filesystem /1/2/3,/4/5/6,mode=mapped", "virtxml-edit-simple-filesystem")
+c.add_compare("--video cirrus", "virtxml-edit-simple-video")
+c.add_compare("--soundhw pcspk", "virtxml-edit-simple-soundhw")
+c.add_compare("--host-device 0x0781:0x5151,driver_name=vfio", "virtxml-edit-simple-host-device")
+
+c = vixml.add_category("edit selection", "--domain test-many-devices --print-diff --define")
+c.add_invalid("--edit target=vvv --disk /dev/null")  # no match found
+c.add_compare("--edit 3 --soundhw pcspk", "virtxml-edit-pos-num")
+c.add_compare("--edit -1 --video qxl", "virtxml-edit-neg-num")
+c.add_compare("--edit all --host-device driver_name=vfio", "virtxml-edit-all")
+c.add_compare("--edit ich6 --soundhw pcspk", "virtxml-edit-select-sound-model")
+c.add_compare("--edit target=hda --disk /dev/null", "virtxml-edit-select-disk-target")
+c.add_compare("--edit mac=00:11:7f:33:44:55 --network target=nic55", "virtxml-edit-select-network-mac")
+
+
 vimag = App("virt-image")
 c = vimag.add_category("graphics", "--name test-image --boot 0 %(IMAGE_XML)s")
 c.add_valid("--sdl")  # SDL
@@ -887,6 +957,10 @@ p7.add("'/root' must be a file or a device")
 p7.add("use as the cloned disk", "%(MANAGEDNEW1)s")
 promptlist.append(p7)
 
+p8 = PromptTest("virt-xml --connect %(TESTURI)s --confirm --domain test "
+    "--edit --cpu host-passthrough")
+p8.add("Define 'test' with the changed XML", "yes", num_lines=12)
+promptlist.append(p8)
 
 
 #########################
@@ -949,6 +1023,7 @@ _cmdlist += vinst.cmds
 _cmdlist += vclon.cmds
 _cmdlist += vimag.cmds
 _cmdlist += vconv.cmds
+_cmdlist += vixml.cmds
 
 for _cmd in _cmdlist:
     newidx += 1
diff --git a/tests/testdriver.xml b/tests/testdriver.xml
index 218f57e9..1e709ee1 100644
--- a/tests/testdriver.xml
+++ b/tests/testdriver.xml
@@ -71,13 +71,26 @@
     yeah boii &lt; &gt; yeahfoo
   </description>
   <features>
-    <acpi/><apic/>
+    <acpi/>
+    <apic eoi='off'/>
+    <hyperv>
+      <relaxed state='on'/>
+      <vapic state='on'/>
+      <spinlocks state='on' retries='12287'/>
+    </hyperv>
   </features>
-  <clock offset="utc"/>
+  <clock offset="utc">
+    <timer name="rtc" tickpolicy="catchup"/>
+    <timer name="pit" tickpolicy="delay"/>
+    <timer name="hpet" present="no"/>
+  </clock>
   <on_poweroff>destroy</on_poweroff>
   <on_reboot>restart</on_reboot>
   <on_crash>restart</on_crash>
   <vcpu cpuset="1,2,5-9,11,13-14">9</vcpu>
+  <numatune>
+    <memory mode='interleave' placement='auto'/>
+  </numatune>
   <cpu match="exact">
     <model>core2duo</model>
     <vendor>Intel</vendor>
@@ -148,14 +161,13 @@
     </interface>
     <interface type='network'>
       <source network='idontexistfool'/>
+      <mac address='22:11:11:11:11:11'/>
     </interface>
     <interface type='network'>
       <source network='dupmac'/>
       <mac address='22:22:33:54:32:11'/>
     </interface>
-    <interface type='user'>
-      <mac address='22:11:11:11:11:11'/>
-    </interface>
+    <interface type='user'/>
     <interface type='bridge'>
       <source bridge='brempty'/>
       <mac address='22:22:33:44:AA:BB'/>
@@ -166,9 +178,8 @@
       <mac address='22:00:00:44:AA:BF'/>
       <model type='e1000'/>
     </interface>
-    <controller type='usb'/>
     <interface type='ethernet'>
-        <mac address='00:11:7F:33:44:55'/>
+        <mac address='00:11:7f:33:44:55'/>
         <script path='/etc/qemu-ifup'/>
         <target dev='nic02'/>
     </interface>
@@ -200,6 +211,9 @@
       <channel name="record" mode="insecure"/>
     </graphics>
 
+    <!-- controller devices -->
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='usb'/>
 
     <!-- sound devices -->
     <sound model='sb16'/>
@@ -363,6 +377,9 @@
     <panic>
       <address type='isa' iobase='0x505'/>
     </panic>
+
+    <!-- memballoon device -->
+    <memballoon model='virtio'/>
   </devices>
 </domain>
 
diff --git a/virt-manager.spec.in b/virt-manager.spec.in
index 45a3af81..3c06319e 100644
--- a/virt-manager.spec.in
+++ b/virt-manager.spec.in
@@ -93,6 +93,7 @@ Provides: virt-install
 Provides: virt-clone
 Provides: virt-image
 Provides: virt-convert
+Provides: virt-xml
 Obsoletes: python-virtinst
 
 %description -n virt-install
@@ -194,6 +195,7 @@ fi
 %{_mandir}/man1/virt-install.1*
 %{_mandir}/man1/virt-clone.1*
 %{_mandir}/man1/virt-convert.1*
+%{_mandir}/man1/virt-xml.1*
 %{_mandir}/man1/virt-image.1*
 %{_mandir}/man5/virt-image.5*
 
@@ -201,11 +203,13 @@ fi
 %{_datadir}/%{name}/virt-clone
 %{_datadir}/%{name}/virt-image
 %{_datadir}/%{name}/virt-convert
+%{_datadir}/%{name}/virt-xml
 
 %{_bindir}/virt-install
 %{_bindir}/virt-clone
 %{_bindir}/virt-image
 %{_bindir}/virt-convert
+%{_bindir}/virt-xml
 
 
 %changelog
diff --git a/virt-xml b/virt-xml
new file mode 100755
index 00000000..182f160e
--- /dev/null
+++ b/virt-xml
@@ -0,0 +1,283 @@
+#!/usr/bin/python -tt
+#
+# Copyright 2013 Red Hat, Inc.
+# Cole Robinson <crobinso@redhat.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301 USA.
+
+import difflib
+import logging
+import os
+import sys
+
+import libvirt
+
+import virtinst
+from virtinst import cli
+from virtinst.cli import fail, print_stdout, print_stderr
+
+
+###################
+# Utility helpers #
+###################
+
+def prompt_yes_or_no(msg):
+    while 1:
+        printmsg = msg + " (y/n): "
+        if "VIRTINST_TEST_SUITE" in os.environ:
+            printmsg += "\n"
+        sys.stdout.write(printmsg)
+        sys.stdout.flush()
+
+        inp = sys.stdin.readline().lower().strip()
+        if inp in ["y", "yes"]:
+            return True
+        elif inp in ["n", "no"]:
+            return False
+        else:
+            print_stdout(_("Please enter 'yes' or 'no'."))
+
+
+def get_diff(origxml, newxml):
+    ret = "".join(difflib.unified_diff(origxml.splitlines(1),
+                                       newxml.splitlines(1),
+                                       fromfile="Original XML",
+                                       tofile="Altered XML"))
+
+    if ret:
+        logging.debug("XML diff:\n%s", ret)
+    else:
+        logging.debug("No XML diff, didn't generate any change.")
+    return ret
+
+
+def get_domain_and_guest(conn, domstr):
+    if not domstr:
+        fail("--domain must be specified")
+
+    try:
+        int(domstr)
+        isint = True
+    except ValueError:
+        isint = False
+
+    try:
+        virtinst.util.validate_uuid(domstr)
+        isuuid = True
+    except ValueError:
+        isuuid = False
+
+    try:
+        if isint:
+            domain = conn.lookupByID(int(domstr))
+        elif isuuid:
+            domain = conn.lookupByUUIDString(domstr)
+        else:
+            domain = conn.lookupByName(domstr)
+    except libvirt.libvirtError, e:
+        fail(_("Could not find domain '%s': %s") % (domstr, e))
+
+    # XXX: Require this for first pass, but it sucks for testing
+    #if domain.info()[0] != libvirt.VIR_DOMAIN_SHUTOFF:
+    #    fail(_("Domain '%s' must be shutoff.") % domain.name())
+
+    # XXX: any flags to use here? INACTIVE prob, though not secure or cpu
+    xml = domain.XMLDesc(0)
+
+    # We do this to minimize the diff, removing things like ' -> "
+    xml = virtinst.Guest(conn, parsexml=xml).get_xml_config()
+    return (domain, xml, virtinst.Guest(conn, parsexml=xml))
+
+
+################
+# Change logic #
+################
+
+def _find_devices_to_edit(guest, options, parserobj):
+    devlist = guest.get_devices(parserobj.devclass.virtual_device_type)
+    idx = None
+
+    if options.edit is None:
+        idx = 1
+    elif (options.edit.isdigit() or
+          options.edit.startswith("-") and options.edit[1:].isdigit()):
+        idx = int(options.edit)
+
+    if idx is not None:
+        if idx == 0:
+            fail(_("Invalid --edit option '%s'") % options.edit)
+
+        if not devlist:
+            fail(_("No --%s devices found in the XML") %
+                parserobj.cli_arg_name)
+        if len(devlist) < abs(idx):
+            fail(_("--edit %s requested but there's only %s "
+                   "--%s devices in the XML") %
+                (idx, len(devlist), parserobj.cli_arg_name))
+
+        if idx > 0:
+            idx -= 1
+        inst = devlist[idx]
+    elif options.edit == "all":
+        inst = devlist[:]
+    else:
+        inst = parserobj.lookup_device_from_option_string(guest, options.edit)
+        if not inst:
+            fail(_("No matching devices found for --edit %s") % options.edit)
+
+    return inst
+
+
+def change_xml(guest, options, parsermap):
+    # XXX: Make sure actions don't conflict
+    # XXX: Make sure XML options don't conflict
+    # XXX: Find a way to factor out whatever defaults there are
+    if options.edit is -1:
+        fail("--edit must be specified")
+
+    collisions = []
+    for option_variable_name, parserobj in parsermap.items():
+        if getattr(options, option_variable_name):
+            collisions.append(parserobj)
+
+    if len(collisions) == 0:
+        fail(_("No change specified."))
+    if len(collisions) != 1:
+        fail(_("Only one change operation may be specified "
+               "(conflicting options %s)") %
+               ["--" + c.cli_arg_name for c in collisions])
+    parserobj = collisions[0]
+
+    if parserobj.devclass:
+        inst = _find_devices_to_edit(guest, options, parserobj)
+    else:
+        inst = guest
+        if options.edit and options.edit != '1' and options.edit != 'all':
+            fail(_("'--edit %s' doesn't make sense with --%s, "
+                   "just use empty '--edit'") %
+            (options.edit, parserobj.cli_arg_name))
+
+    cli.parse_option_strings(parsermap, options, guest, inst)
+
+
+#######################
+# CLI option handling #
+#######################
+
+def parse_args():
+    # XXX: man page: mention introspection if it makes sense
+    # XXX: expand usage
+    # XXX: notes about the default actions, behavior, etc
+    parser = cli.setupParser(
+        "%(prog)s [options]",
+        _("Edit libvirt XML using command line options."),
+        introspection_epilog=True)
+
+    cli.add_connect_option(parser)
+
+    actg = parser.add_argument_group(_("Action Options"))
+    actg.add_argument("--domain", help=_("Domain name, id, or uuid"))
+    actg.add_argument("--edit", nargs='?', default=-1,
+                      help=_("Edit VM XML"))
+
+    g = parser.add_argument_group(_("XML options"))
+    cli.add_disk_option(g)
+    cli.add_net_option(g)
+    cli.add_gfx_option(g)
+    cli.vcpu_cli_options(g)
+    cli.add_guest_xml_options(g)
+    cli.add_boot_option(g)
+    cli.add_fs_option(g)
+    cli.add_device_options(g)
+
+    misc = parser.add_argument_group(_("Miscellaneous Options"))
+    cli.add_misc_options(misc, prompt=False, printxml=False, dryrun=False)
+    misc.add_argument("--print-diff", action="store_true",
+        help=_("Only print the requested change, in diff format"))
+    misc.add_argument("--print-xml", action="store_true",
+        help=_("Only print the requested change, in full XML format"))
+    misc.add_argument("--confirm", action="store_true",
+        help=_("Require confirmation before saving any results."))
+    misc.add_argument("--define", action="store_true",
+        help=_("Force defining the domain, only required if a --print "
+               "option was specified."))
+
+    return parser.parse_args()
+
+
+###################
+# main() handling #
+###################
+
+def main(conn=None):
+    cli.earlyLogging()
+    options = parse_args()
+
+    if options.confirm or options.print_xml or options.print_diff:
+        options.quiet = False
+    if not options.print_xml and not options.print_diff:
+        options.define = True
+    if options.confirm and not options.print_xml:
+        options.print_diff = True
+
+    cli.setupLogging("virt-xml", options.debug, options.quiet)
+
+    parsermap = cli.build_parser_map(options)
+    if cli.check_option_introspection(options, parsermap):
+        return 0
+
+    if conn is None:
+        conn = cli.getConnection(options.connect)
+
+    domain, origxml, guest = get_domain_and_guest(conn, options.domain)
+    # XXX: do we ever need the domain?
+    ignore = domain
+
+    change_xml(guest, options, parsermap)
+
+    newxml = guest.get_xml_config()
+    diff = get_diff(origxml, newxml)
+
+    if options.print_diff:
+        if diff:
+            print_stdout(diff)
+    elif options.print_xml:
+        print_stdout(newxml)
+
+    if not options.define:
+        return 0
+
+    if options.confirm:
+        # XXX: Message needs to depend on what action we will take
+        if not prompt_yes_or_no(
+            _("Define '%s' with the changed XML?" % guest.name)):
+            return 0
+
+    conn.defineXML(guest.get_xml_config())
+    print_stdout(_("Domain '%s' defined successfully." % guest.name))
+    return 0
+
+
+if __name__ == "__main__":
+    try:
+        sys.exit(main())
+    except SystemExit, sys_e:
+        sys.exit(sys_e.code)
+    except KeyboardInterrupt:
+        logging.debug("", exc_info=True)
+        print_stderr(_("Aborted at user request"))
+    except Exception, main_e:
+        fail(main_e)
diff --git a/virtinst/cli.py b/virtinst/cli.py
index 6e074487..7c9b10f8 100644
--- a/virtinst/cli.py
+++ b/virtinst/cli.py
@@ -974,39 +974,39 @@ class _VirtCLIArgument(object):
         self.ignore_default = ignore_default
 
 
-    def parse(self, opts, inst, support_cb=None):
+    def parse(self, opts, inst, support_cb=None, lookup=False):
         val = opts.get_opt_param(self.cliname)
         if val is None:
             return
+        if val == "":
+            val = None
 
         if support_cb:
             support_cb(inst, self.attrname, self.cliname)
         if self.is_onoff:
             val = _on_off_convert(self.cliname, val)
-        if val == "default" and self.ignore_default:
+        if val == "default" and self.ignore_default and not lookup:
             return
 
-        attr = None
+        if lookup and not self.attrname:
+            raise RuntimeError(_("Don't know how to match %s property %s") %
+                (getattr(inst, "virtual_device_type", ""), self.cliname))
+
         try:
-            if self.setter_cb:
-                attr = None
-            elif callable(self.attrname):
-                attr = self.attrname
-            else:
-                attr = eval("inst." + self.attrname)
+            if self.attrname:
+                eval("inst." + self.attrname)
         except AttributeError:
             raise RuntimeError("programming error: obj=%s does not have "
                                "member=%s" % (inst, self.attrname))
 
-        if self.setter_cb:
+        if lookup:
+            return eval("inst." + self.attrname) == val
+        elif self.setter_cb:
             self.setter_cb(opts, inst, self.cliname, val)
-        elif callable(attr):
-            attr(val)
         else:
             exec("inst." + self.attrname + " = val")  # pylint: disable=W0122
 
 
-
 class VirtOptionString(object):
     def __init__(self, optstr, virtargs, remove_first=None):
         """
@@ -1116,7 +1116,11 @@ class VirtCLIParser(object):
     A command line argument just extends this interface, implements
     _init_params, and calls set_param in the order it wants the options
     parsed on the command line. See existing impls examples of how to
-    do all sorts of crazy stuff
+    do all sorts of crazy stuff.
+
+    set_param must be set unconditionally (ex from _init_params and not
+    from overriding _parse), so that we can show all options when the
+    user requests command line introspection like --disk=?
     """
     devclass = None
 
@@ -1206,6 +1210,28 @@ class VirtCLIParser(object):
             return ret[0]
         return ret
 
+    def lookup_device_from_option_string(self, guest, optstr):
+        """
+        Given a passed option string, search the guests' device list
+        for all devices which match the passed options.
+        """
+        devlist = guest.get_devices(self.devclass.virtual_device_type)[:]
+        ret = []
+
+        for inst in devlist:
+            opts = VirtOptionString(optstr, self._params,
+                                    remove_first=self.remove_first)
+            valid = True
+            for param in self._params:
+                if param.parse(opts, inst,
+                               support_cb=None, lookup=True) is False:
+                    valid = False
+                    break
+            if valid:
+                ret.append(inst)
+
+        return ret
+
     def _parse_single_optstr(self, guest, optstr, inst):
         if not optstr:
             return None
@@ -1249,9 +1275,9 @@ class ParserNumatune(VirtCLIParser):
         self.set_param("numatune.memory_mode", "mode")
 
 
-##################
-# --vcpu parsing #
-##################
+###################
+# --vcpus parsing #
+###################
 
 class ParserVCPU(VirtCLIParser):
     def _init_params(self):
@@ -1317,7 +1343,17 @@ class ParserCPU(VirtCLIParser):
             ignore = opts
             policy = cliname
             for feature_name in util.listify(val):
-                inst.cpu.add_feature(feature_name, policy)
+                featureobj = None
+
+                for f in inst.cpu.features:
+                    if f.name == feature_name:
+                        featureobj = f
+                        break
+
+                if featureobj:
+                    featureobj.policy = policy
+                else:
+                    inst.cpu.add_feature(feature_name, policy)
 
         self.set_param(None, "model", setter_cb=set_model_cb)
         self.set_param("cpu.match", "match")
@@ -1627,7 +1663,7 @@ class ParserNetwork(VirtCLIParser):
         self.set_param("source_mode", "source_mode")
         self.set_param("target_dev", "target")
         self.set_param("model", "model")
-        self.set_param(None, "mac", setter_cb=set_mac_cb)
+        self.set_param("macaddr", "mac", setter_cb=set_mac_cb)
         self.set_param("filterref", "filterref")
 
     def _parse(self, optsobj, inst):
@@ -1701,7 +1737,11 @@ class ParserController(VirtCLIParser):
         self.set_param("model", "model")
         self.set_param("index", "index")
         self.set_param("master_startport", "master")
-        self.set_param("address.set_addrstr", "address")
+
+        def set_server_cb(opts, inst, cliname, val):
+            ignore = opts = cliname
+            inst.address.set_addrstr(val)
+        self.set_param(None, "address", setter_cb=set_server_cb)
 
     def _parse(self, opts, inst):
         if opts.fullopts == "usb2":
@@ -1739,7 +1779,12 @@ class ParserRedir(VirtCLIParser):
 
         self.set_param("bus", "bus")
         self.set_param("type", "type")
-        self.set_param("parse_friendly_server", "server")
+
+        def set_server_cb(opts, inst, cliname, val):
+            ignore = opts = cliname
+            inst.parse_friendly_server(val)
+
+        self.set_param(None, "server", setter_cb=set_server_cb)
 
 
 #################
@@ -1893,15 +1938,28 @@ class _ParserChar(VirtCLIParser):
                      "optname" : cliname})
         self.support_cb = support_check
 
+
         self.set_param("type", "char_type")
         self.set_param("source_path", "path")
         self.set_param("source_mode", "mode")
         self.set_param("protocol",   "protocol")
         self.set_param("target_type", "target_type")
         self.set_param("target_name", "name")
-        self.set_param("set_friendly_source", "host")
-        self.set_param("set_friendly_bind", "bind_host")
-        self.set_param("set_friendly_target", "target_address")
+
+        def set_host_cb(opts, inst, cliname, val):
+            ignore = opts = cliname
+            inst.set_friendly_source(val)
+        self.set_param(None, "host", setter_cb=set_host_cb)
+
+        def set_bind_cb(opts, inst, cliname, val):
+            ignore = opts = cliname
+            inst.set_friendly_bind(val)
+        self.set_param(None, "bind_host", setter_cb=set_bind_cb)
+
+        def set_target_cb(opts, inst, cliname, val):
+            ignore = opts = cliname
+            inst.set_friendly_target(val)
+        self.set_param(None, "target_address", setter_cb=set_target_cb)
 
     def _parse(self, opts, inst):
         if opts.fullopts == "none" and inst.virtual_device_type == "console":
@@ -2042,17 +2100,23 @@ def build_parser_map(options, skip=None, only=None):
     return parsermap
 
 
-def parse_option_strings(parsermap, options, guest, inst):
+def parse_option_strings(parsermap, options, guest, instlist):
     """
     Iterate over the parsermap, and launch the associated parser
     function for every value that was filled in on 'options', which
     came from argparse/the command line.
     """
+    instlist = util.listify(instlist)
+    if not instlist:
+        instlist = [None]
+
     for option_variable_name in dir(options):
         if option_variable_name not in parsermap:
             continue
-        parsermap[option_variable_name].parse(
-            guest, getattr(options, option_variable_name), inst)
+
+        for inst in util.listify(instlist):
+            parsermap[option_variable_name].parse(
+                guest, getattr(options, option_variable_name), inst)
 
 
 def check_option_introspection(options, parsermap):
-- 
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