Open Stack

Hi,

I have written a wiki about usb controller and usb-passthrough in https://wiki.openstack.org/wiki/Nova/proposal_about_usb_passthrough.

Hope I can get your good advices.

Thanks,
Jeremy Liu

> -----Original Message-----
> From: Liuji (Jeremy) [mailto:jeremy.liu at huawei.com]
> Sent: Thursday, February 27, 2014 9:59 AM
> To: yunhong.jiang at linux.intel.com; OpenStack Development Mailing List (not
> for usage questions)
> Cc: Luohao (brian); Yuanjing (D)
> Subject: Re: [openstack-dev] [nova] Question about USB passthrough
> 
> Yes, PCI devices like GPU or HBA are common resources, admin/user do not
> need to specify which device to which VM. So current PCI passthrough function
> can meet user scenarios.
> 
> But USB devices have different user scenarios. Take USB key or USB disk as
> example, admin/user may need the content in USB device but not the device
> itself, so admin/user should specify which USB device to which VM.
> 
> There are other things needed to be considered too, for example USB device
> may need a matched USB controller but not the default USB 1.1 controller
> created by qemu.
> 
> I'm not clear about how to provide this function but still want to write a wiki so
> that more people can participate in the discussion.
> 
> Thanks,
> Jeremy Liu
> 
> > -----Original Message-----
> > From: yunhong jiang [mailto:yunhong.jiang at linux.intel.com]
> > Sent: Wednesday, February 26, 2014 1:17 AM
> > To: OpenStack Development Mailing List (not for usage questions)
> > Cc: bpavlovic at mirantis.com; Luohao (brian); Yuanjing (D)
> > Subject: Re: [openstack-dev] [nova] Question about USB passthrough
> >
> > On Tue, 2014-02-25 at 03:05 +0000, Liuji (Jeremy) wrote:
> > > Now that USB devices are used so widely in private/hybrid cloud like
> > > used as USB key, and there are no technical issues in libvirt/qemu.
> > > I think it a valuable feature in openstack.
> >
> > USB key is an interesting scenario. I assume the USB key is just for
> > some specific VM, wondering how the admin/user know which usb disk to
> which VM?
> >
> > --jyh
> >
> >
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> > OpenStack-dev at lists.openstack.org
> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
> 
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