arch/tile: parameterize system PLs to support KVM port

While not a port to KVM (yet), this change modifies the kernel
to be able to build either at PL1 or at PL2 with a suitable
config switch.  Pushing up this change avoids handling branch
merge issues going forward with the KVM work.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/arch/tile/kvm/Kconfig b/arch/tile/kvm/Kconfig
new file mode 100644
index 000000000000..b88f9c047781
--- /dev/null
+++ b/arch/tile/kvm/Kconfig
@@ -0,0 +1,38 @@
+#
+# KVM configuration
+#
+
+source "virt/kvm/Kconfig"
+
+menuconfig VIRTUALIZATION
+        bool "Virtualization"
+        ---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 && MODULES && EXPERIMENTAL
+        select PREEMPT_NOTIFIERS
+        select ANON_INODES
+        ---help---
+          Support hosting paravirtualized guest machines.
+
+          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.
+
+source drivers/vhost/Kconfig
+source drivers/virtio/Kconfig
+
+endif # VIRTUALIZATION