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, 104 insertions, 0 deletions

diff --git a/kernel/arch/x86/kvm/Kconfig b/kernel/arch/x86/kvm/Kconfig
new file mode 100644
index 000000000..413a7bf9e
--- /dev/null
+++ b/kernel/arch/x86/kvm/Kconfig
@@ -0,0 +1,104 @@
+#
+# KVM configuration
+#
+
+source "virt/kvm/Kconfig"
+
+menuconfig VIRTUALIZATION
+	bool "Virtualization"
+	depends on HAVE_KVM || X86
+	default y
+	---help---
+	  Say Y here to get to see options for using your Linux host to run other
+	  operating systems inside virtual machines (guests).
+	  This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
+
+if VIRTUALIZATION
+
+config KVM
+	tristate "Kernel-based Virtual Machine (KVM) support"
+	depends on HAVE_KVM
+	depends on HIGH_RES_TIMERS
+	# for TASKSTATS/TASK_DELAY_ACCT:
+	depends on NET
+	select PREEMPT_NOTIFIERS
+	select MMU_NOTIFIER
+	select ANON_INODES
+	select HAVE_KVM_IRQCHIP
+	select HAVE_KVM_IRQFD
+	select HAVE_KVM_IRQ_ROUTING
+	select HAVE_KVM_EVENTFD
+	select KVM_APIC_ARCHITECTURE
+	select KVM_ASYNC_PF
+	select USER_RETURN_NOTIFIER
+	select KVM_MMIO
+	select TASKSTATS
+	select TASK_DELAY_ACCT
+	select PERF_EVENTS
+	select HAVE_KVM_MSI
+	select HAVE_KVM_CPU_RELAX_INTERCEPT
+	select KVM_GENERIC_DIRTYLOG_READ_PROTECT
+	select KVM_VFIO
+	select SRCU
+	---help---
+	  Support hosting fully virtualized guest machines using hardware
+	  virtualization extensions.  You will need a fairly recent
+	  processor equipped with virtualization extensions. You will also
+	  need to select one or more of the processor modules below.
+
+	  This module provides access to the hardware capabilities through
+	  a character device node named /dev/kvm.
+
+	  To compile this as a module, choose M here: the module
+	  will be called kvm.
+
+	  If unsure, say N.
+
+config KVM_INTEL
+	tristate "KVM for Intel processors support"
+	depends on KVM
+	# for perf_guest_get_msrs():
+	depends on CPU_SUP_INTEL
+	---help---
+	  Provides support for KVM on Intel processors equipped with the VT
+	  extensions.
+
+	  To compile this as a module, choose M here: the module
+	  will be called kvm-intel.
+
+config KVM_AMD
+	tristate "KVM for AMD processors support"
+	depends on KVM
+	---help---
+	  Provides support for KVM on AMD processors equipped with the AMD-V
+	  (SVM) extensions.
+
+	  To compile this as a module, choose M here: the module
+	  will be called kvm-amd.
+
+config KVM_MMU_AUDIT
+	bool "Audit KVM MMU"
+	depends on KVM && TRACEPOINTS
+	---help---
+	 This option adds a R/W kVM module parameter 'mmu_audit', which allows
+	 auditing of KVM MMU events at runtime.
+
+config KVM_DEVICE_ASSIGNMENT
+	bool "KVM legacy PCI device assignment support"
+	depends on KVM && PCI && IOMMU_API
+	default y
+	---help---
+	  Provide support for legacy PCI device assignment through KVM.  The
+	  kernel now also supports a full featured userspace device driver
+	  framework through VFIO, which supersedes much of this support.
+
+	  If unsure, say Y.
+
+# OK, it's a little counter-intuitive to do this, but it puts it neatly under
+# the virtualization menu.
+source drivers/vhost/Kconfig
+source drivers/lguest/Kconfig
+
+endif # VIRTUALIZATION