nested virtualization

lib/vagrant-libvirt/action/create_domain.rb

@@ -19,6 +19,7 @@ module VagrantPlugins
           # Gather some info about domain
           @name = env[:domain_name]
           @cpus = config.cpus
+          @nested = config.nested
           @memory_size = config.memory*1024
 
           # TODO get type from driver config option

lib/vagrant-libvirt/config.rb

@@ -25,6 +25,7 @@ module VagrantPlugins
       # Domain specific settings used while creating new domain.
       attr_accessor :memory
       attr_accessor :cpus
+      attr_accessor :nested
 
       def initialize
         @driver            = UNSET_VALUE
@@ -37,6 +38,7 @@ module VagrantPlugins
         # Domain specific settings.
         @memory            = UNSET_VALUE
         @cpus              = UNSET_VALUE
+        @nested            = UNSET_VALUE
       end
 
       def finalize!
@@ -50,6 +52,7 @@ module VagrantPlugins
         # Domain specific settings.
         @memory = 512 if @memory == UNSET_VALUE
         @cpus = 1 if @cpus == UNSET_VALUE
+        @nested = false if @nested == UNSET_VALUE
       end
 
       def validate(machine)

lib/vagrant-libvirt/templates/domain.xml.erb

@@ -2,6 +2,14 @@
   <name><%= @name %></name>
   <memory><%= @memory_size %></memory>
   <vcpu><%= @cpus %></vcpu>
+
+  <% if @nested %>
+    <cpu match='exact'>
+      <model>core2duo</model>
+      <feature policy='require' name='vmx'/>
+    </cpu>
+  <% end %>
+
   <os>
     <type arch='x86_64'>hvm</type>
     <boot dev='hd'/>