[Bug 258771] Re: Using -usbdevice host: slows the guest OS down to a crawl

[Dustin Kirkland]

Hi Matt-

I actually believe this bug to be fixed in Lucid's qemu-kvm 0.12.3.

Similar to your original report, I fired up a VM with usb attached to my
Palm Pre phone, which can act as a USB dongle.  I was able to
successfully connect to the internet in the VM with:

$ sudo kvm -m 512 -hda testdrive-disk-nMLT3b.img -usb -usbdevice host:0830:0101
usb_create: no bus specified, using "usb.0" for "usb-host"
husb: open device 2.7
husb: config #5 need -1
husb: 4 interfaces claimed for configuration 5
husb: grabbed usb device 2.7
husb: config #5 need 5
husb: 4 interfaces claimed for configuration 5
husb: config #5 need 5
husb: 4 interfaces claimed for configuration 5
husb: config #5 need 5
husb: 4 interfaces claimed for configuration 5
husb: config #5 need 5
husb: 4 interfaces claimed for configuration 5

And in the guest, it was able to connect through the dongle to the
internet.  There was no noticeable degradation in performance in either
the host or guest.  Screenshot attached.  I think this is fix-released!

** Attachment added: "usb.png"
   http://launchpadlibrarian.net/39938116/usb.png

** Changed in: qemu-kvm (Ubuntu)
       Status: Incomplete => Fix Released

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Using -usbdevice host: slows the guest OS down to a crawl
https://bugs.launchpad.net/bugs/258771
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