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__init__.py 2 kB
hv_base.py 19.9 kB
hv_chroot.py 10.7 kB
hv_fake.py 10.7 kB
hv_kvm.py 96.1 kB
hv_lxc.py 15.6 kB
hv_xen.py 41.3 kB

Latest revisions

# Date Author Comment
24711492 10/31/2013 11:28 am Dimitris Aragiorgis

Check if hotplug is supported in CheckPrereq

Introduce new RPC hotplug_supported that invokes the corresponding
hypervisor's method which checks if hotplug is generally
supported. Call this RPC early in CheckPrereq() and abort if
hotplug is not supported. Currently only KVM hypervisor with...
4f2f98f1 10/24/2013 12:27 pm Dimitris Aragiorgis

drive_del after device_del in disk hot-remove

This is needed so that qemu process really releases the
corresponding file descriptor and thus we can dmsetup/lvremove
the device without errors.

Signed-off-by: Dimitris Aragiorgis <>
Signed-off-by: Thomas Thrainer <>...
41a878b5 10/24/2013 12:27 pm Dimitris Aragiorgis

block_devices -> kvm_disks renaming

and a couple more styple fixes.
block_devices are misleading so rename them to kvm_disk (just like kvm_nics)

Signed-off-by: Dimitris Aragiorgis <>
Signed-off-by: Thomas Thrainer <>
Reviewed-by: Thomas Thrainer <>
50e0f1d9 10/24/2013 12:27 pm Dimitris Aragiorgis

Make hotplug related method raise HotplugError

Hotplug is not supported by default and thus we raise
HotplugError() for hotplug related methods.
If a hypervisor wants to support it, we must override VerifyHotplugSupport()
and implement the Hot* method.

Backend invokes VerifyHotplugSupport() and raises RPCFail if an...
43c6e76f 10/24/2013 12:27 pm Dimitris Aragiorgis

Some fixes in _GenerateKVMBlockDevicesOptions()

  • Add docstring.
  • fix missed usecase of boot_disk=False if kernel_path is given.
  • Use devlist arg in GenerateKVMBlockDeviceOptions()
    This is previously calculated in _ExecuteKVMRuntime()
    so there is no need to rerun the same command....
c5708931 10/24/2013 12:27 pm Dimitris Aragiorgis

Hotplug: rpc support

Introduce new RPC that eventually invoke hypervisor specific
hotplug functions. In order to be generic it has the following
arguments: device type, action, device, extra info, seq.
Device type can be NIC or DISK, action can be ADD, REMOVE,...
4b82125b 10/24/2013 12:27 pm Dimitris Aragiorgis

Introduce hotplug methods (hypervisor inteface)

4 new methods: HotAddDevice, HotDelDevice, HotModDevice, HotplugSupported
All these are the hypervisor interface with the backend.
In general they read current runtime info, do the actual hotplug
and update the runtime file....
cad837b9 10/24/2013 12:27 pm Dimitris Aragiorgis

Extract socket related code from QmpMonitor class

Separate unix socket related code from QmpMonitor class and
make the latter extend the newly introduced one: MonitorSocket

Signed-off-by: Dimitris Aragiorgis <>
Signed-off-by: Thomas Thrainer <>...
97cd9092 10/24/2013 12:27 pm Dimitris Aragiorgis

Helper methods that check for hotplug support

Hotplug is currently not supported for:

- KVM < 1.0
 - existing devices in the cluster
 - python-fdsend module is not installed (NIC hotplug)
 - chroot (Disk hotplug)
 - security mode other than None (Disk hotplug)...
a7ccf635 10/24/2013 12:27 pm Dimitris Aragiorgis

Use -device with pci info if possible

Extend kvm_cmd with -device option for the case of paravirual
Disks and NICs.

Signed-off-by: Dimitris Aragiorgis <>
Signed-off-by: Thomas Thrainer <>
Reviewed-by: Thomas Thrainer <>

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