Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 121 insertions, 0 deletions

diff --git a/kernel/drivers/pci/Kconfig b/kernel/drivers/pci/Kconfig
new file mode 100644
index 000000000..73de4efcb
--- /dev/null
+++ b/kernel/drivers/pci/Kconfig
@@ -0,0 +1,121 @@
+#
+# PCI configuration
+#
+config PCI_BUS_ADDR_T_64BIT
+	def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
+	depends on PCI
+
+config PCI_MSI
+	bool "Message Signaled Interrupts (MSI and MSI-X)"
+	depends on PCI
+	select GENERIC_MSI_IRQ
+	help
+	   This allows device drivers to enable MSI (Message Signaled
+	   Interrupts).  Message Signaled Interrupts enable a device to
+	   generate an interrupt using an inbound Memory Write on its
+	   PCI bus instead of asserting a device IRQ pin.
+
+	   Use of PCI MSI interrupts can be disabled at kernel boot time
+	   by using the 'pci=nomsi' option.  This disables MSI for the
+	   entire system.
+
+	   If you don't know what to do here, say Y.
+
+config PCI_MSI_IRQ_DOMAIN
+	bool
+	depends on PCI_MSI
+	select GENERIC_MSI_IRQ_DOMAIN
+
+config PCI_DEBUG
+	bool "PCI Debugging"
+	depends on PCI && DEBUG_KERNEL
+	help
+	  Say Y here if you want the PCI core to produce a bunch of debug
+	  messages to the system log.  Select this if you are having a
+	  problem with PCI support and want to see more of what is going on.
+
+	  When in doubt, say N.
+
+config PCI_REALLOC_ENABLE_AUTO
+	bool "Enable PCI resource re-allocation detection"
+	depends on PCI
+	help
+	  Say Y here if you want the PCI core to detect if PCI resource
+	  re-allocation needs to be enabled. You can always use pci=realloc=on
+          or pci=realloc=off to override it.  Note this feature is a no-op
+          unless PCI_IOV support is also enabled; in that case it will
+          automatically re-allocate PCI resources if SR-IOV BARs have not
+          been allocated by the BIOS.
+
+	  When in doubt, say N.
+
+config PCI_STUB
+	tristate "PCI Stub driver"
+	depends on PCI
+	help
+	  Say Y or M here if you want be able to reserve a PCI device
+	  when it is going to be assigned to a guest operating system.
+
+	  When in doubt, say N.
+
+config XEN_PCIDEV_FRONTEND
+        tristate "Xen PCI Frontend"
+        depends on PCI && X86 && XEN
+        select PCI_XEN
+	select XEN_XENBUS_FRONTEND
+        default y
+        help
+          The PCI device frontend driver allows the kernel to import arbitrary
+          PCI devices from a PCI backend to support PCI driver domains.
+
+config HT_IRQ
+	bool "Interrupts on hypertransport devices"
+	default y
+	depends on PCI && X86_LOCAL_APIC
+	help
+	   This allows native hypertransport devices to use interrupts.
+
+	   If unsure say Y.
+
+config PCI_ATS
+	bool
+
+config PCI_IOV
+	bool "PCI IOV support"
+	depends on PCI
+	select PCI_ATS
+	help
+	  I/O Virtualization is a PCI feature supported by some devices
+	  which allows them to create virtual devices which share their
+	  physical resources.
+
+	  If unsure, say N.
+
+config PCI_PRI
+	bool "PCI PRI support"
+	depends on PCI
+	select PCI_ATS
+	help
+	  PRI is the PCI Page Request Interface. It allows PCI devices that are
+	  behind an IOMMU to recover from page faults.
+
+	  If unsure, say N.
+
+config PCI_PASID
+	bool "PCI PASID support"
+	depends on PCI
+	select PCI_ATS
+	help
+	  Process Address Space Identifiers (PASIDs) can be used by PCI devices
+	  to access more than one IO address space at the same time. To make
+	  use of this feature an IOMMU is required which also supports PASIDs.
+	  Select this option if you have such an IOMMU and want to compile the
+	  driver for it into your kernel.
+
+	  If unsure, say N.
+
+config PCI_LABEL
+	def_bool y if (DMI || ACPI)
+	select NLS
+
+source "drivers/pci/host/Kconfig"