Merge branch 'hotcpu-add' into 'master'

Hotcpu add

See merge request !4

vm.py

@@ -12,6 +12,7 @@ class VMInstance:
     vm_type = None
     os_boot = None
     vcpu = None
+    vcpu_max = None
     cpu_share = None
     memory_max = None
     network_list = list()
@@ -22,7 +23,8 @@ class VMInstance:
     def __init__(self,
                  name,
                  vcpu,
-                 memory_max,
+                 vcpu_max=None,
+                 memory_max=None,
                  memory=None,
                  emulator='/usr/bin/kvm',
                  cpu_share=100,
@@ -53,6 +55,9 @@ class VMInstance:
         seclabel_type - libvirt security label type
         seclabel_mode - libvirt security mode (selinux, apparmor)
         '''
+        self.vcpu_max = vcpu_max
+        if not vcpu_max:
+            self.vcpu_max = vcpu
         self.name = name
         self.emulator = emulator
         self.vcpu = vcpu
@@ -98,9 +103,25 @@ class VMInstance:
                 xml_top.append(child)
         # Basic virtual machine paramaters
         ET.SubElement(xml_top, 'name').text = self.name
-        ET.SubElement(xml_top, 'vcpu').text = str(self.vcpu)
-        cpu = ET.SubElement(xml_top, 'cpu')
-        ET.SubElement(cpu, 'topology',
+        if self.vcpu < self.vcpu_max and self.vcpu_max != 0:
+            ET.SubElement(xml_top, 'vcpu', attrib={'current': str(self.vcpu)}).text = str(self.vcpu_max)
+            vcpus = ET.SubElement(xml_top, 'vcpus')
+            for i in range(0, self.vcpu):
+                ET.SubElement(vcpus, 'vcpu',
+                      attrib={
+                          'id': str(i),
+                          'enabled': 'yes',
+                          'hotpluggable': 'no'})
+            for i in range(self.vcpu, self.vcpu_max):
+                ET.SubElement(vcpus, 'vcpu',
+                      attrib={
+                          'id': str(i),
+                          'enabled': 'no',
+                          'hotpluggable': 'yes'})
+        else:
+            ET.SubElement(xml_top, 'vcpu').text = str(self.vcpu)
+            cpu = ET.SubElement(xml_top, 'cpu')
+            ET.SubElement(cpu, 'topology',
                       attrib={
                           'sockets': str(1),
                           'cores': str(self.vcpu),
@@ -146,6 +167,18 @@ class VMInstance:
                       attrib={'mode': 'bind',
                               'path': '/var/lib/libvirt/serial/vio-%s'
                               % self.name})
+
+        virtio = ET.SubElement(devices,
+                               'channel',
+                               attrib={'type': 'unix'})
+        ET.SubElement(virtio,
+                      'target',
+                      attrib={'type': 'virtio', 'name': 'org.qemu.guest_agent.0', 'state': 'connected'})
+        ET.SubElement(virtio,
+                      'source',
+                      attrib={'mode': 'bind',
+                              'path': '/var/lib/libvirt/qemu/f16x86_64.agent-%s'
+                              % self.name})
         # Console/graphics section
         if self.graphics is not None:
             ET.SubElement(devices,

vmdriver.py

@@ -550,6 +550,21 @@ def migrate(name, host, live=False):
         bandwidth=0)
     # return _parse_info(domain.info())
 
+@celery.task
+@req_connection
+@wrap_libvirtError
+def hotplug_memset(name, memory):
+    """Hotplug (live) memory set to max mem limit"""
+    domain = lookupByName(name)
+    domain.setMemory(int(memory))
+
+@celery.task
+@req_connection
+@wrap_libvirtError
+def hotplug_vcpuset(name, vcpu):
+    """Hotplug (live) vcpu set to max vcpu limit"""
+    domain = lookupByName(name)
+    domain.setVcpus(int(vcpu))
 
 @celery.task
 @req_connection