EHCI / XHCI Emulation in HVM Guest

Hi,

I have been using xen 4.4 to emulate EHCI/XHCI in Ubuntu HVM Guest. I have specified usbviersion 2 for EHCI in HVM config file.
However, I am unable to see UHCI / EHCI emulated controller in HVM Guest. If I do not specify usbversion in HVM then I can see UHCI emulated controller present in HVM Guest.

Is this a limitation of Xen 4.4? Xen 4.5 will come up with complete Emulation of EHCI / XHCI? If yes, then May I know tentative date of Xen 4.5 Release?

As I have to run multiple HVM Guest OSs with EHCI and XHCI, so I can have better USB performance.

I am looking forware to your response. And also let me know if you need amy more information.

Thanks in advance.

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Bhavik Kothari shared this idea · August 08, 2014 · Admin →

under review · June 01, 2015

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AdminGeorge Dunlap (Staff Software Engineer, Xen.org Open-source Hypervisor) commented · June 01, 2015 15:35

usbversion={2,3} will work with 4.5, but at the moment it doesn't interoperate with emulated qemu devices or host USB pass-through. Is that the functionality you're looking for?
Fabio Fantoni commented · September 03, 2014 14:02

For now (in xen 4.4) usb 2 anb usb3 controllers are used only by spice usb redirection.

I suggest you ...

EHCI / XHCI Emulation in HVM Guest

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