Re: [Xen-devel] [GIT PULL] remove xend for 4.5 (Was: Re: [PATCH] MAINTAINERS: Exclude xend from toolstack maintainers entry)

[George Dunlap <dunlapg@xxxxxxxxx>]

On Thu, Mar 27, 2014 at 12:01 PM, Olaf Hering <olaf@xxxxxxxxx> wrote:
> On Thu, Mar 27, George Dunlap wrote:
>
>>  - xl PVSCSI support
>
> I have some incomplete patch, which supports at least vscsi=[] in domU.cfg.
> It will certainly take N iterations until it can get into 4.5.
>
> I think, based on this change, PVUSB shouldnt be hard. But then, no idea
> what PVUSB actually requires.

I think the difficult part of PVUSB was actually getting the libxl
interface right.  Back during 4.3 development, I had begun work on a
proper libxl usb interface for emulated devices, which would have
trivially been able to be extended to include PVUSB devices as well.
Getting the plumbing for qemu working was the space of a week; we then
spent three months haggling about the interface, and in the end I had
to drop it for the feature freeze.  I never got a chance to pick it
back up again for 4.4.  I took a brief look at what would be
necesseary to do the PVUSB plumbing, and it looks like it should be
equally as simple.

If you could pick up that patch series for 4.5, I'd really appreciate it. :-)

 -George

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