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Latest revisions

# Date Author Comment
a00069fd 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) Update hotplug design doc

..to reflect the transition from HMP to QMP during hotplug
actions.

Signed-off-by: Dimitris Aragiorgis <>
Reviewed-by: Hrvoje Ribicic <>
e31571c1 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) qmp: Log qmp commands and responses

Add debug logging for all qmp commands and responses, except for
query-commands, and qmp_capabilities, that are executed upon
initialization of QmpConnection (and their output is not really
useful).

Signed-off-by: Dimitris Aragiorgis <>...
f1306ed7 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) hotplug: Is not supported for QEMU < 1.7

Change the bulk check of whether hotplug is supported or not.
Only versions >= 1.7 support the required qmp commands.

Signed-off-by: Dimitris Aragiorgis <>
Reviewed-by: Hrvoje Ribicic <>
196f7c06 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) hotplug: Remove unused code after refacoring

All HMP related code gets removed since everything is done via QMP.

Signed-off-by: Dimitris Aragiorgis <>
Reviewed-by: Hrvoje Ribicic <>
e5793395 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) hotplug: Use QMP during HotDelDevice

During device hot-del use new QMP helper methods: HotDelDisk() for
disk hotplug and HotDelNic() for NIC hotplug.

Signed-off-by: Dimitris Aragiorgis <>
Reviewed-by: Hrvoje Ribicic <>
ec46e34c 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) hotplug: Use QMP during HotAddDevice

During device hot-add use new QMP helper methods: GetFreePCISlot()
for allocating a free PCI slot, HotAddDisk() for disk hotplug and
HotAddNic() for NIC hotplug.

Signed-off-by: Dimitris Aragiorgis <>...
3fdca25e 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) kvm: Use the new interface during instance start

Use new OpenTap() and _GetNetworkDeviceFeatures() interfaces
during _ExecuteKVMRuntime().

Signed-off-by: Dimitris Aragiorgis <>
Reviewed-by: Hrvoje Ribicic <>
57c24313 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) monitor: Extend HotAddNic() for advanced features

In case vhost is enabled we have to pass the vhostfds as returned by
OpenTap() via SCM_RIGHTS prior issuing netdev_add command with vhost
and vhostfds extra arguments.

In case multiqueue is enabled we add the mq and vectors extra...
ef1462f1 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) kvm: Refactor _GetNetworkDeviceFeatures() helper

Make _GetNetworkDeviceFeatures() return a tuple of (dict, str, str).
The first item should be a dictionary including the enabled
netdev/device features (vhost, vnet_hdr, mq). The other two are
strings to be appended to --netdev and --device qemu options....
14b8592f 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) netdev: Refactor OpenTap for future use

Make OpenTap() helper method to take a dictionary with the features
that should be enabled or not. Currently these features are: vhost,
vnet_hdr, multiqueue.

In case vhost is enabled, along with the tapfds we return a list of...

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