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Juergen Gross b057878b2a xen/pciback: support driver_override 
Support the driver_override scheme introduced with commit 782a985d7a
("PCI: Introduce new device binding path using pci_dev.driver_override")

As pcistub_probe() is called for all devices (it has to check for a
match based on the slot address rather than device type) it has to
check for driver_override set to "pciback" itself.

Up to now for assigning a pci device to pciback you need something like:

echo 0000:07:10.0 > /sys/bus/pci/devices/0000\:07\:10.0/driver/unbind
echo 0000:07:10.0 > /sys/bus/pci/drivers/pciback/new_slot
echo 0000:07:10.0 > /sys/bus/pci/drivers_probe

while with the patch you can use the same mechanism as for similar
drivers like pci-stub and vfio-pci:

echo pciback > /sys/bus/pci/devices/0000\:07\:10.0/driver_override
echo 0000:07:10.0 > /sys/bus/pci/devices/0000\:07\:10.0/driver/unbind
echo 0000:07:10.0 > /sys/bus/pci/drivers_probe

So e.g. libvirt doesn't need special handling for pciback.

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
 		2016-09-30 11:49:02 +01:00
..
Makefile xen/pciback: Have 'passthrough' option instead of XEN_PCIDEV_BACKEND_PASS and XEN_PCIDEV_BACKEND_VPCI 2011-07-19 21:04:20 -04:00
conf_space.c xen-pciback: drop superfluous variables 2016-07-06 10:35:38 +01:00
conf_space.h xen-pciback: Add name prefix to global 'permissive' variable 2015-04-29 17:34:50 +01:00
conf_space_capability.c xen/pciback: Drop two backends, squash and cleanup some code. 2011-07-19 20:58:35 -04:00
conf_space_header.c xen-pciback: use const and unsigned in bar_init() 2016-07-06 10:35:38 +01:00
conf_space_quirks.c xen/pciback: miscellaneous adjustments 2011-09-21 18:17:59 -04:00
conf_space_quirks.h xen/pciback: Drop two backends, squash and cleanup some code. 2011-07-19 20:58:35 -04:00
passthrough.c xen/pciback: Don't deadlock when unbinding. 2014-12-04 12:41:58 +00:00
pci_stub.c xen/pciback: support driver_override 2016-09-30 11:49:02 +01:00
pciback.h xen: xen-pciback: Remove create_workqueue 2016-07-06 10:34:48 +01:00
pciback_ops.c xen: xen-pciback: Remove create_workqueue 2016-07-06 10:34:48 +01:00
vpci.c xen/pciback: Don't deadlock when unbinding. 2014-12-04 12:41:58 +00:00
xenbus.c xen: xen-pciback: Remove create_workqueue 2016-07-06 10:34:48 +01:00