[Kimchi-devel] [PATCH v2 3/4] Define the USB xhci controller in the template for Power Systems

[Jose Ricardo Ziviani]

 - When creating VMs using Kimchi in a Power System, the USB xhci
   controller is defined by default to have PCI hotplug support.

Signed-off-by: Jose Ricardo Ziviani <joserz at linux.vnet.ibm.com>
---
 src/kimchi/vmtemplate.py | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/kimchi/vmtemplate.py b/src/kimchi/vmtemplate.py
index 79e04ed..3e42971 100644
--- a/src/kimchi/vmtemplate.py
+++ b/src/kimchi/vmtemplate.py
@@ -22,6 +22,7 @@ import stat
 import time
 import urlparse
 import uuid
+import platform
 
 from lxml import etree
 from lxml.builder import E
@@ -287,6 +288,19 @@ class VMTemplate(object):
                            self.info.get('memory') << 10,
                            cpu_topo)
 
+    def _get_usb_controller(self):
+        # powerkvm systems must include xhci controller model
+        distro, _, _ = platform.linux_distribution()
+        if distro != "IBM_PowerKVM":
+            return ''
+
+        return """
+        <controller type='usb' index='0' model='nec-xhci'>
+            <address type='pci' domain='0x0000'
+            bus='0x00' slot='0x0f' function='0x0'/>
+        </controller>
+        """
+
     def to_vm_xml(self, vm_name, vm_uuid, **kwargs):
         params = dict(self.info)
         params['name'] = vm_name
@@ -323,6 +337,8 @@ class VMTemplate(object):
         elif params['slots'] == 0:
             params['slots'] = 1
 
+        params['usb_controller'] = self._get_usb_controller()
+
         xml = """
         <domain type='%(domain)s'>
           %(qemu-stream-cmdline)s
@@ -352,6 +368,7 @@ class VMTemplate(object):
             %(networks)s
             %(graphics)s
             %(input_output)s
+            %(usb_controller)s
             <memballoon model='virtio' />
           </devices>
         </domain>
-- 
1.9.1