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Re: [Xen-devel] Xen PVUSB work
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On 16/08/13 23:34, Shakil k wrote:
Hi George,
Can you let me know the required work needed in the
area of Âlibxl/xl PVUSBÂalso if you have any documents or
suggestion, then please pass on to me.
There are two things that need work, actually:
* Linux kernel side of the PVUSB.Â
There is a PVUSB implimentation in SuSE's "classic Xen" kernel that
some people have been able to use, but there are reports that it can
be a bit flaky. There is no PVUSB kernel support in mainline
Linux. There was an initial port some time ago (Konrad can point
you to the tree), but it needs to be rebased, fixed, and
upstreamed. If you have the time and inclination, this is probably
the most critical part to getting PVUSB working for 4.4, as it's
something the rest of us definitely don't have time to do.
* The toolstack side
Near the end of 4.3 we were developing a general interface for
adding host USB devices. The interface was designed to be able to
support either HVM or PV guests. It didn't make it in on time, but
it's close to being done, and I fully expect that I can get it in
for 4.4. The patch series I was working on would have implemented
only HVM guests, it should be fairly easy to extend for PV guests.
I probably won't have time to work on it for about a month or so; if
the kernel side isn't your cup of tea, you'd be welcome to pick up
that patch series and try to get it in shape for submission, then
add the necessary PV bits.
Patch series here:
http://lists.xen.org/archives/html/xen-devel/2013-04/msg02012.html
Let me know if you do decide to go this route, and I can post the
code which partially addresses those comments.
Information on steps required to initiate the PV USB connection
given a working PVUSB front-end and back-end here:
http://www.neobiker.de/wiki/index.php?title=XEN-PVUSB
Â-George
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