Difference between revisions of "Nova/USB device hot cold plug"
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== USB device hot/cold plug features == | == USB device hot/cold plug features == | ||
| + | |||
| + | === Related Content === | ||
| + | https://wiki.openstack.org/wiki/Nova/USB_device%26USB_controller | ||
| + | |||
| + | https://wiki.openstack.org/wiki/Nova/USB_controller_hot_cold_plug | ||
| + | |||
=== Background === | === Background === | ||
| + | Adding usb devices to a exist vm is a necessary supplement features to usb device passthrough. | ||
=== User scenarios === | === User scenarios === | ||
| + | When a user transfers money online, him may need to attach a usb-key provided by bank to vm for authentication. | ||
=== Technical verification === | === Technical verification === | ||
1. Test case | 1. Test case | ||
| + | (1)Attaching different type and number usb controllers and usb devices to vm when vm in diffrent status(running, stopped and so on). | ||
| + | (2)Detaching usb devices from vm when vm in diffrent status(running, stopped and so on). | ||
2. Xml definition | 2. Xml definition | ||
| + | (1)Sample of usb controller: | ||
| + | <controller type='usb' index='2' model='piix3-uhci'/> | ||
| + | <controller type='usb' index='1' model='ehci'/> | ||
| + | |||
| + | (2)Sample of pass-through usb devices | ||
| + | <hostdev mode='subsystem' type='usb'> | ||
| + | < source> | ||
| + | <vendor id='0x136b'/> | ||
| + | <product id='0x0003'/> | ||
| + | <address bus='2' device='2'/> | ||
| + | </source> | ||
| + | <address type='usb' bus='1' port='1'/> | ||
| + | </hostdev> | ||
3. The test results | 3. The test results | ||
Revision as of 08:41, 4 March 2014
Contents
USB device hot/cold plug features
Related Content
https://wiki.openstack.org/wiki/Nova/USB_device%26USB_controller
https://wiki.openstack.org/wiki/Nova/USB_controller_hot_cold_plug
Background
Adding usb devices to a exist vm is a necessary supplement features to usb device passthrough.
User scenarios
When a user transfers money online, him may need to attach a usb-key provided by bank to vm for authentication.
Technical verification
1. Test case
(1)Attaching different type and number usb controllers and usb devices to vm when vm in diffrent status(running, stopped and so on). (2)Detaching usb devices from vm when vm in diffrent status(running, stopped and so on).
2. Xml definition
(1)Sample of usb controller: <controller type='usb' index='2' model='piix3-uhci'/> <controller type='usb' index='1' model='ehci'/>
(2)Sample of pass-through usb devices
<hostdev mode='subsystem' type='usb'>
< source>
<vendor id='0x136b'/>
<product id='0x0003'/>
<address bus='2' device='2'/>
</source>
<address type='usb' bus='1' port='1'/>
</hostdev>
3. The test results
Proposed solution
1. Use cases
2. System requirements and things should be considered(An optional Implementation):
