1 files changed, 16 insertions, 0 deletions

diff --git a/arch/x86/include/asm/numa.h b/arch/x86/include/asm/numa.h
index db449c7d89b..74540865dd8 100644
--- a/arch/x86/include/asm/numa.h
+++ b/arch/x86/include/asm/numa.h
@@ -9,6 +9,16 @@
 #ifdef CONFIG_NUMA
 
 #define NR_NODE_MEMBLKS         (MAX_NUMNODES*2)
+#define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT))
+
+/*
+ * Too small node sizes may confuse the VM badly. Usually they
+ * result from BIOS bugs. So dont recognize nodes as standalone
+ * NUMA entities that have less than this amount of RAM listed:
+ */
+#define NODE_MIN_SIZE (4*1024*1024)
+
+extern int numa_off;
 
 /*
  * __apicid_to_node[] stores the raw mapping between physical apicid and
@@ -68,4 +78,10 @@ static inline void numa_remove_cpu(int cpu)		{ }
 void debug_cpumask_set_cpu(int cpu, int node, bool enable);
 #endif
 
+#ifdef CONFIG_NUMA_EMU
+#define FAKE_NODE_MIN_SIZE      ((u64)32 << 20)
+#define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL))
+void numa_emu_cmdline(char *);
+#endif /* CONFIG_NUMA_EMU */
+
 #endif  /* _ASM_X86_NUMA_H */