x86: introduce macro to check whether an address range is in the ISA range
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Suresh B Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/asm-x86/e820.h b/include/asm-x86/e820.h
index 7004251..5103d0b 100644
--- a/include/asm-x86/e820.h
+++ b/include/asm-x86/e820.h
@@ -24,6 +24,7 @@
#define ISA_START_ADDRESS 0xa0000
#define ISA_END_ADDRESS 0x100000
+#define is_ISA_range(s, e) ((s) >= ISA_START_ADDRESS && (e) < ISA_END_ADDRESS)
#define BIOS_BEGIN 0x000a0000
#define BIOS_END 0x00100000