Index: kernel/arch/amd64/include/arch/mm/as.h
===================================================================
--- kernel/arch/amd64/include/arch/mm/as.h	(revision ef56a4328da1ed71522c868067e6224662037a28)
+++ kernel/arch/amd64/include/arch/mm/as.h	(revision 69b6dd1fdad61cf973f096c5e880336d3d2a1691)
@@ -40,4 +40,5 @@
 
 #define KERNEL_ADDRESS_SPACE_SHADOWED_ARCH  0
+#define KERNEL_SEPARATE_PTL0_ARCH           0
 
 #define KERNEL_ADDRESS_SPACE_START_ARCH  UINT64_C(0xffff800000000000)