Merge branch 'stable/xen-pciback-0.6.3.bugfixes' into stable/for-linus-3.3.rebased

* stable/xen-pciback-0.6.3.bugfixes: (22 commits)
  xen/pciback: Check if the device is found instead of blindly assuming so.
  xen/pciback: Do not dereference psdev during printk when it is NULL.
  xen/pciback: double lock typo
  xen/pciback: use mutex rather than spinlock in vpci backend
  xen/pciback: Use mutexes when working with Xenbus state transitions.
  xen/pciback: miscellaneous adjustments
  xen/pciback: use mutex rather than spinlock in passthrough backend
  xen/pciback: use resource_size()
  xen/pciback: remove duplicated #include
  xen/pciback: Have 'passthrough' option instead of XEN_PCIDEV_BACKEND_PASS and XEN_PCIDEV_BACKEND_VPCI
  xen/pciback: Remove the DEBUG option.
  xen/pciback: Drop two backends, squash and cleanup some code.
  xen/pciback: Print out the MSI/MSI-X (PIRQ) values
  xen/pciback: Don't setup an fake IRQ handler for SR-IOV devices.
  xen: rename pciback module to xen-pciback.
  xen/pciback: Fine-grain the spinlocks and fix BUG: scheduling while atomic cases.
  xen/pciback: Allocate IRQ handler for device that is shared with guest.
  xen/pciback: Disable MSI/MSI-X when reseting a device
  xen/pciback: guest SR-IOV support for PV guest
  xen/pciback: Register the owner (domain) of the PCI device.
  ...

Conflicts:
	drivers/xen/Kconfig
	drivers/xen/Makefile

diff --cc drivers/xen/Kconfig
index 11ab5934ea050ba76cfff743effbab20f43d6236,9b700b4a987a1457b127a224bfdca6e47b17499d..c825a23be9620870b231839507c2ce0fb2a1d858
--- 1/drivers/xen/Kconfig
--- 2/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@@ -96,10 -105,26 +96,32 @@@ config SWIOTLB_XE
        depends on PCI
        select SWIOTLB
  
 +
 +config XEN_PRIVCMD
 +      tristate
 +      depends on XEN
 +      default m
 +
+ config XEN_PCIDEV_BACKEND
+       tristate "Xen PCI-device backend driver"
+       depends on PCI && X86 && XEN
+       depends on XEN_BACKEND
+       default m
+       help
+         The PCI device backend driver allows the kernel to export arbitrary
+         PCI devices to other guests. If you select this to be a module, you
+         will need to make sure no other driver has bound to the device(s)
+         you want to make visible to other guests.
+ 
+         The parameter "passthrough" allows you specify how you want the PCI
+         devices to appear in the guest. You can choose the default (0) where
+         PCI topology starts at 00.00.0, or (1) for passthrough if you want
+         the PCI devices topology appear the same as in the host.
+ 
+         The "hide" parameter (only applicable if backend driver is compiled
+         into the kernel) allows you to bind the PCI devices to this module
+         from the default device drivers. The argument is the list of PCI BDFs:
+         xen-pciback.hide=(03:00.0)(04:00.0)
+ 
+         If in doubt, say m.
  endmenu

diff --cc drivers/xen/Makefile
index 51ba5d5821541fc91520fdf356b624256fd99045,35a72ef3afaca8b01ed8837fcbdbc29ce94413c3..917d1886d0754fe91d5fee3a94f25d792bdc6037
--- 1/drivers/xen/Makefile
--- 2/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@@ -14,10 -14,10 +14,11 @@@ obj-$(CONFIG_XEN_GNTDEV)           += xen-gntdev
  obj-$(CONFIG_XEN_GRANT_DEV_ALLOC)     += xen-gntalloc.o
  obj-$(CONFIG_XENFS)                   += xenfs/
  obj-$(CONFIG_XEN_SYS_HYPERVISOR)      += sys-hypervisor.o
 -obj-$(CONFIG_XEN_PLATFORM_PCI)                += xen-platform-pci.o
 +obj-$(CONFIG_XEN_PVHVM)                       += platform-pci.o
  obj-$(CONFIG_SWIOTLB_XEN)             += swiotlb-xen.o
  obj-$(CONFIG_XEN_DOM0)                        += pci.o
 +obj-$(CONFIG_XEN_PRIVCMD)             += xen-privcmd.o
+ obj-$(CONFIG_XEN_PCIDEV_BACKEND)      += xen-pciback/
  
  xen-evtchn-y                          := evtchn.o
  xen-gntdev-y                          := gntdev.o