2 files changed, 6 insertions, 0 deletions

diff --git a/include/asm-x86_64/e820.h b/include/asm-x86_64/e820.h
index 855fb4a454b6..6216fa3f2802 100644
--- a/include/asm-x86_64/e820.h
+++ b/include/asm-x86_64/e820.h
@@ -46,6 +46,7 @@ extern void e820_mark_nosave_regions(void);
 extern void e820_print_map(char *who);
 extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type);
 extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type);
+extern unsigned long e820_hole_size(unsigned long start, unsigned long end);
 
 extern void e820_setup_gap(void);
 extern void e820_register_active_regions(int nid,
diff --git a/include/asm-x86_64/mmzone.h b/include/asm-x86_64/mmzone.h
index 39ef106986eb..fb558fb1d211 100644
--- a/include/asm-x86_64/mmzone.h
+++ b/include/asm-x86_64/mmzone.h
@@ -47,5 +47,10 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
 extern int pfn_valid(unsigned long pfn);
 #endif
 
+#ifdef CONFIG_NUMA_EMU
+#define FAKE_NODE_MIN_SIZE      (64*1024*1024)
+#define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1ul))
+#endif
+
 #endif
 #endif