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root / lib / hypervisor @ 2400eba6

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__init__.py 2 kB
hv_base.py 18.1 kB
hv_chroot.py 10.8 kB
hv_fake.py 10.6 kB
hv_kvm.py 94.1 kB
hv_lxc.py 15.8 kB
hv_xen.py 38.2 kB

Latest revisions

# Date Author Comment
2400eba6 03/20/2014 12:49 pm Dimitris Aragiorgis

(2.10) 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....
c1398e4a 03/20/2014 12:49 pm Dimitris Aragiorgis

(2.10) 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,...
51abe597 03/20/2014 12:49 pm Dimitris Aragiorgis

(2.10) 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 <>...
08ef9efe 03/20/2014 12:49 pm Dimitris Aragiorgis

(2.10) 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....
232f860d 03/20/2014 12:49 pm Dimitris Aragiorgis

(2.10) 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)...
7f4a1195 03/20/2014 12:49 pm Dimitris Aragiorgis

(2.10) 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 <>...
44ca8b7a 03/20/2014 12:49 pm Dimitris Aragiorgis

(2.10) 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....
96d7613b 03/20/2014 12:49 pm Dimitris Aragiorgis

(fix) Remove uri slot from block_devices

In stable-2.10 we have userspace access mode for rbd. Backend
calculates uri along with link and dev_path. Thus we have
three items in block_devices and kvm_disks tuples.

We this patch we remove the third value.
...
a9e4a18b 03/20/2014 12:49 pm Dimitris Aragiorgis

(2.10) Prepare block_devices runtime entry

With this patch we add another entry in runtime files along with
kvm_cmd, kvm_nics, and hvparams. block_devices that used to be
encapsulated inside kvm_cmd, live now separately just like nics do
but in tupples of (L{objects.Disk}, dev_path)....
9439542d 03/20/2014 12:49 pm Dimitris Aragiorgis

(2.10) Prepare kvm options to support -device for disks

Newer kvm version support -device driver,... option where available
drivers can be found by running kvm -device ? command. Currently
ganeti uses `if` property of driver to define the disk type to use...

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