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# Date Author Comment
55061f27 11/13/2013 01:24 am 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....
139c240c 11/08/2013 10:12 am Dimitris Aragiorgis

Add finally: mosock.close() in _PassFds

Signed-off-by: Dimitris Aragiorgis <>

8eebdaa7 11/08/2013 10:11 am 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,...

6283c5e3 11/08/2013 10:11 am 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....

f028b2bf 11/08/2013 10:11 am 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 <>

e506cce0 11/08/2013 10:11 am 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)...
3e4fdd70 11/08/2013 10:11 am 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 <>

0745fe0e 11/08/2013 10:11 am Dimitris Aragiorgis

Hepler 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....

8bbcbb9e 11/08/2013 10:11 am Dimitris Aragiorgis

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)....

68c9f726 11/08/2013 10:11 am Dimitris Aragiorgis

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
which is also passed as hvparam. This patch prepares the use of...

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