Re: [PATCH v7 2/3] usb: Introduce Xen pvUSB frontend (xen hcd)

[Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>]

On Fri, Dec 03, 2021 at 01:50:44PM +0100, Juergen Gross wrote:
> On 03.12.21 13:49, Greg Kroah-Hartman wrote:
> > On Tue, Nov 23, 2021 at 02:20:47PM +0100, Juergen Gross wrote:
> > > Introduces the Xen pvUSB frontend. With pvUSB it is possible for a Xen
> > > domU to communicate with a USB device assigned to that domU. The
> > > communication is all done via the pvUSB backend in a driver domain
> > > (usually Dom0) which is owner of the physical device.
> > > 
> > > The pvUSB frontend is a USB hcd for a virtual USB host connector.
> > > 
> > > The code is taken from the pvUSB implementation in Xen done by Fujitsu
> > > based on Linux kernel 2.6.18.
> > > 
> > > Changes from the original version are:
> > > - port to upstream kernel
> > > - put all code in just one source file
> > > - move module to appropriate location in kernel tree
> > > - adapt to Linux style guide
> > > - minor code modifications to increase readability
> > > 
> > > Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
> > > ---
> > >   drivers/usb/host/Kconfig   |   11 +
> > >   drivers/usb/host/Makefile  |    1 +
> > >   drivers/usb/host/xen-hcd.c | 1606 ++++++++++++++++++++++++++++++++++++
> > >   3 files changed, 1618 insertions(+)
> > >   create mode 100644 drivers/usb/host/xen-hcd.c
> > 
> > This looks sane to me, but I don't know the HCD interface as well as
> > others on linux-usb do, like Alan Stern.
> > 
> > What tree do you want this to be merged through, my USB one?
> 
> Either that, or I can carry it through the Xen tree.
> 
> Its your choice. :-)

I've grabbed them now, thanks.

greg k-h