USB EHCI/Xen: propagate controller reset information to hypervisor
authorJan Beulich <JBeulich@suse.com>
Tue, 18 Sep 2012 11:23:02 +0000 (12:23 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 18 Sep 2012 16:20:48 +0000 (17:20 +0100)
commit9fa5780beea1274d498a224822397100022da7d4
tree9dbc2d31f3af70502843bbebe8017828abd63136
parentee42f6c9fc62d1d4d45b0d75e5f947e6645d8c30
USB EHCI/Xen: propagate controller reset information to hypervisor

Just like for the in-tree early console debug port driver, the
hypervisor - when using a debug port based console - also needs to be
told about controller resets, so it can suppress using and then
re-initialize the debug port accordingly.

Other than the in-tree driver, the hypervisor driver actually cares
about doing this only for the device where the debug is port actually
in use, i.e. it needs to be told the coordinates of the device being
reset (quite obviously, leveraging the addition done for that would
likely benefit the in-tree driver too).

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/early/ehci-dbgp.c
drivers/usb/host/ehci-hcd.c
drivers/usb/host/ehci-hub.c
drivers/xen/Makefile
drivers/xen/dbgp.c [new file with mode: 0644]
include/linux/usb/ehci_def.h
include/xen/interface/physdev.h