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root / lib / hypervisor @ e0007cf1

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__init__.py 2 kB
hv_base.py 19.8 kB
hv_chroot.py 10.7 kB
hv_fake.py 10.7 kB
hv_kvm.py 95.9 kB
hv_lxc.py 15.6 kB
hv_xen.py 41.3 kB

Latest revisions

# Date Author Comment
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 <>
2615646c 10/24/2013 12:27 pm Dimitris Aragiorgis

Helper methods for PCI slots and device ids

Device naming:
QEMU monitor expects devices to be uniquely named. Device ids derive
from the following function:
kvm_devid = <device_type>-<part of uuid>-pci-<pci_slot>
Device ids must be reproduce-able when we want to remove them....

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