Open Stack

Hi

I have proposed three BPs about usb-passthrough.
1. Usb-passthrough is the core function I want to provide which is in https://review.openstack.org/#/c/86118/.
2. The function of specify usb controller for usb-passthrough is for refine the use of Usb-passthrough, which is in https://review.openstack.org/#/c/88337/. 
3. The function of specify usb controller is the prerequisite of specify usb controller for usb-passthrough which is in https://review.openstack.org/#/c/88334.

The backgrounds are:
I want to make a detailed explanation about why I suggest to provide this function.
 
We provide VDI(Virtual Desktop) and server virtualization solutions for customers, our customers have strong requirements for using USB devices.
 
The typical use cases and our solutions are described as below:

1.In VDI solution, customers want to use local USB printers or USB scanners with TC(Thin-Client), because remote desktop protocol like ICA have already support USB-redirection, so customers only need to attach USB device to TC, the protocol can map USB device to VM.

2. In virtualization solution, when starting or restarting some business-critical applications, a connected USB-KEY is needed for authentication, some applications even need a daily authentication by USB-KEY. we suggest the following solutions:
(1) Using physical 'USB-HUB' box and technology of USB-redirection over TCP/IP. Customers need to buy USB-HUB and install software in guest os, the software helps redirecting USB device to VM.

(2) Using USB-Passthrough and USB hot-plug functions provided by our virtualization software. The end users(normally application or system administrators) insert USB devices to host that containing the VM, then  can see USB device list in portal and choose USB device to attach.

This solution has advantages that
1. It doesn't need additional physical devices 

2. It doesn't need a special server to run spice client for USB-Redirection 

3. Business-critical applications commonly need stable and long-standing USB-KEY to attach, USB-Passthrough maybe more stable than USB-Redirection over TCP/IP or remote desktop protocol.

Welcome for any advices.

Thanks


-----Original Message-----
From: Jay Pipes (Code Review) [mailto:review at openstack.org]
Sent: Wednesday, April 23, 2014 6:59 AM
To: Yuanjing (D)
Cc: Daniel Berrange; Joe Gordon
Subject: Change in openstack/nova-specs[master]: Support specify USB controller for USB-passthrough

Jay Pipes has posted comments on this change.

Change subject: Support specify USB controller for USB-passthrough ......................................................................


Patch Set 1: I would prefer that you didn't merge this

Jing, what is the difference between this blueprint and https://review.openstack.org/#/c/88334/? Are they the same?

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Gerrit-MessageType: comment
Gerrit-Change-Id: I26c81c61754af883b8de4c1ffe58384b87b22a77
Gerrit-PatchSet: 1
Gerrit-Project: openstack/nova-specs
Gerrit-Branch: master
Gerrit-Owner: Jing Yuan <yj.yuan at huawei.com>
Gerrit-Reviewer: Daniel Berrange <berrange at redhat.com>
Gerrit-Reviewer: Jay Pipes <jaypipes at gmail.com>
Gerrit-Reviewer: Jenkins
Gerrit-Reviewer: Joe Gordon <joe.gordon0 at gmail.com>