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Re: [Qemu-devel] [qemu-devel][RFC] Enable usb with default options


From: Li Zhang
Subject: Re: [Qemu-devel] [qemu-devel][RFC] Enable usb with default options
Date: Thu, 07 Jun 2012 17:29:37 +0800
User-agent: Mozilla/5.0 (X11; Linux i686; rv:12.0) Gecko/20120430 Thunderbird/12.0.1

On 06/07/2012 05:17 PM, Benjamin Herrenschmidt wrote:
On Thu, 2012-06-07 at 11:05 +0200, Gerd Hoffmann wrote:
We (me and Gerd Hoffmann) have investigated that, and experimented with it.
It will work for simply devices, but isochronous devices break. The real
solution at least for x86 vms is to get the XHCI emulation finished, as
the XHCI controller has a much nicer hw interface from an emulation pov,
and it can handle usb 1-3 devices.

xhci emulation (in qemu-1.1) is good enougth to handle usb-tablet, so
feel free to play with it today :)

I don't think we've tried it on big-endian yet :-) Li, is that something
you team can have a look at (separately from these patches).

Sure, we can have a look at it. :)

Cheers,
Ben.




--
Best Regards
Li

IBM LTC, China System&Technology Lab, Beijing




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