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, 12 insertions, 0 deletions

diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 2361e3e80bd5..89cfee07efa9 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -96,6 +96,7 @@ config HVC_TILE
 
 config TILE
         def_bool y
+        select HAVE_KVM if !TILEGX
         select GENERIC_FIND_FIRST_BIT
         select GENERIC_FIND_NEXT_BIT
         select USE_GENERIC_SMP_HELPERS
@@ -314,6 +315,15 @@ config HARDWALL
         bool "Hardwall support to allow access to user dynamic network"
         default y
 
+config KERNEL_PL
+        int "Processor protection level for kernel"
+        range 1 2
+        default "1"
+        ---help---
+          This setting determines the processor protection level the
+          kernel will be built to run at.  Generally you should use
+          the default value here.
+
 endmenu  # Tilera-specific configuration
 
 menu "Bus options"
@@ -354,3 +364,5 @@ source "security/Kconfig"
 source "crypto/Kconfig"
 
 source "lib/Kconfig"
+
+source "arch/tile/kvm/Kconfig"