commit 671eef85a3e885dff4ce210d8774ad50a91d5967
author Cihula, Joseph <joseph.cihula@intel.com> Wed Aug 20 16:43:07 2008 -0700
committer Ingo Molnar <mingo@elte.hu> Thu Aug 21 13:22:13 2008 +0200
tree 6a89380a2ebdf8cedde7969f8a9ec23a5045ceca
parent b76d69ed721e8365739c3bd5dd7891efbea88494

x86, e820: add support for AddressRangeUnusuable ACPI memory type

Add support for the E820_UNUSABLE memory type, which is defined in
Revision 3.0b (Oct.  10, 2006) of the ACPI Specification on p.  394 Table
14-1:

  AddressRangeUnusuable This range of address contains memory in which
  errors have been detected.  This range must not be used by the OSPM.

Signed-off-by: Joseph Cihula <joseph.cihula@intel.com>
Signed-off-by: Shane Wang <shane.wang@intel.com>
Signed-off-by: Gang Wei <gang.wei@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

include/asm-x86/e820.h

diff --git a/include/asm-x86/e820.h b/include/asm-x86/e820.h
index f52daf1..ca433c3 100644
--- a/include/asm-x86/e820.h
+++ b/include/asm-x86/e820.h
@@ -43,6 +43,7 @@
 #define E820_RESERVED	2
 #define E820_ACPI	3
 #define E820_NVS	4
+#define E820_UNUSABLE	5
 
 /* reserved RAM used by kernel itself */
 #define E820_RESERVED_KERN        128