diff --git a/include/asm-x86/e820.h b/include/asm-x86/e820.h
index 3e214f3..f96f185 100644
--- a/include/asm-x86/e820.h
+++ b/include/asm-x86/e820.h
@@ -22,6 +22,9 @@
 };
 #endif /* __ASSEMBLY__ */
 
+#define ISA_START_ADDRESS	0xa0000
+#define ISA_END_ADDRESS		0x100000
+
 #ifdef __KERNEL__
 #ifdef CONFIG_X86_32
 # include "e820_32.h"
diff --git a/include/asm-x86/e820_64.h b/include/asm-x86/e820_64.h
index 1c7ba88..8cba49d 100644
--- a/include/asm-x86/e820_64.h
+++ b/include/asm-x86/e820_64.h
@@ -26,6 +26,10 @@
 extern void e820_mark_nosave_regions(void);
 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 int e820_any_non_reserved(unsigned long start, unsigned long end);
+extern int is_memory_any_valid(unsigned long start, unsigned long end);
+extern int e820_all_non_reserved(unsigned long start, unsigned long end);
+extern int is_memory_all_valid(unsigned long start, unsigned long end);
 extern unsigned long e820_hole_size(unsigned long start, unsigned long end);
 
 extern void e820_setup_gap(void);
@@ -38,6 +42,7 @@
 
 extern unsigned ebda_addr, ebda_size;
 extern unsigned long nodemap_addr, nodemap_size;
+
 #endif/*!__ASSEMBLY__*/
 
 #endif/*__E820_HEADER*/