added ability to specify bus for additional disks

README.md

@@ -281,6 +281,7 @@ You can create and attach additional disks to a VM via `libvirt.storage :file`.
 * `device` - Name of the device node the disk image will have in the VM, e.g. *vdb*. If unspecified, the next available device is chosen.
 * `size` - Size of the disk image. If unspecified, defaults to 10G.
 * `type` - Type of disk image to create. Defaults to *qcow2*.
+* `bus` - Type of bus to connect device to. Defaults to *virtio*.
 
 The following example creates two additional disks.
 

lib/vagrant-libvirt/config.rb

@@ -131,6 +131,7 @@ module VagrantPlugins
           :type => 'qcow2',
           :size => '10G',	# matches the fog default
           :path => nil,
+          :bus => 'virtio'
         }.merge(options)
 
         #puts "storage(#{storage_type} --- #{options.to_s})"
@@ -141,6 +142,7 @@ module VagrantPlugins
           :type => options[:type],
           :size => options[:size],
           :path => options[:path],
+          :bus => options[:bus]
         }
 
         if storage_type == :file

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

@@ -38,7 +38,7 @@
     <disk type='file' device='disk'>
       <driver name='qemu' type='<%= d[:type] %>'/>
       <source file='<%= d[:path] %>'/>
-      <target dev='<%= d[:device] %>' bus='virtio'/>
+      <target dev='<%= d[:device] %>' bus='<%= d[:bus] %>'/>
 <%# this will get auto generated by libvirt
       <address type='pci' domain='0x0000' bus='0x00' slot='???' function='0x0'/>
 -%>