old_contents: # Copyright 2014 Red Hat, Inc.
  # 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 and helper APIs for dealing with virtualization types
  
  The constants provide the standard names for all known guest
  virtualization types. This is not to be confused with the Nova
  hypervisor driver types, since one driver may support multiple
  virtualization types and one virtualization type (eg 'xen') may
  be supported by multiple drivers ('XenAPI' or  'Libvirt-Xen').
  """
  
  from nova import exception
  
  
  # This list is taken from libvirt, with OpenStack
  # specific 'baremetal' & 'fake' then added in.
  BAREMETAL = "baremetal"
  BHYVE = "bhyve"
  FAKE = "fake"
  HYPERV = "hyperv"
  KQEMU = "kqemu"
  KVM = "kvm"
  LXC = "lxc"
  OPENVZ = "openvz"
  PARALLELS = "parallels"
  PHYP = "phyp"
  QEMU = "qemu"
  TEST = "test"
  UML = "uml"
  VBOX = "vbox"
  VMWARE = "vmware"
  XEN = "xen"
  
  ALL = (
      BAREMETAL,
      BHYVE,
      FAKE,
      HYPERV,
      KQEMU,
      KVM,
      LXC,
      OPENVZ,
      PARALLELS,
      PHYP,
      QEMU,
      TEST,
      UML,
      VBOX,
      VMWARE,
      XEN,
  )
  
  
  def is_valid(name):
      """Check if a string is a valid hypervisor type
  
      :param name: hypervisor type name to validate
  
      :returns: True if @name is valid
      """
      return name in ALL
  
  
  def canonicalize(name):
      """Canonicalize the hypervisor type name
  
      :param name: hypervisor type name to canonicalize
  
      :returns: a canonical hypervisor type name
      """
  
      if name is None:
          return None
  
      newname = name.lower()
  
      if newname == "xapi":
          newname = XEN
  
      if not is_valid(newname):
          raise exception.InvalidHypervisorVirtType(hvtype=name)
  
      return newname
  
new_contents: # Copyright 2014 Red Hat, Inc.
  # 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 and helper APIs for dealing with virtualization types
  
  The constants provide the standard names for all known guest
  virtualization types. This is not to be confused with the Nova
  hypervisor driver types, since one driver may support multiple
  virtualization types and one virtualization type (eg 'xen') may
  be supported by multiple drivers ('XenAPI' or  'Libvirt-Xen').
  """
  
  from nova import exception
  
  
  # This list is all known hypervisors
  # even if not currently supported by OpenStack.
  BAREMETAL = "baremetal"
  BHYVE = "bhyve"
  FAKE = "fake"
  HYPERV = "hyperv"
  KQEMU = "kqemu"
  KVM = "kvm"
  LXC = "lxc"
  OPENVZ = "openvz"
  PARALLELS = "parallels"
  PHYP = "phyp"
  QEMU = "qemu"
  TEST = "test"
  UML = "uml"
  VBOX = "vbox"
  VMWARE = "vmware"
  XEN = "xen"
  ZVM = "zvm"
  
  ALL = (
      BAREMETAL,
      BHYVE,
      FAKE,
      HYPERV,
      KQEMU,
      KVM,
      LXC,
      OPENVZ,
      PARALLELS,
      PHYP,
      QEMU,
      TEST,
      UML,
      VBOX,
      VMWARE,
      XEN,
      ZVM,
  )
  
  
  def is_valid(name):
      """Check if a string is a valid hypervisor type
  
      :param name: hypervisor type name to validate
  
      :returns: True if @name is valid
      """
      return name in ALL
  
  
  def canonicalize(name):
      """Canonicalize the hypervisor type name
  
      :param name: hypervisor type name to canonicalize
  
      :returns: a canonical hypervisor type name
      """
  
      if name is None:
          return None
  
      newname = name.lower()
  
      if newname == "xapi":
          newname = XEN
  
      if not is_valid(newname):
          raise exception.InvalidHypervisorVirtType(hvtype=name)
  
      return newname
  
subject: Add 'zvm' to the list of known hypervisor types