diff options
| author | Cihula, Joseph <joseph.cihula@intel.com> | 2008-08-20 16:43:07 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-21 13:22:13 +0200 |
| commit | 671eef85a3e885dff4ce210d8774ad50a91d5967 (patch) | |
| tree | 6a89380a2ebdf8cedde7969f8a9ec23a5045ceca | |
| parent | b76d69ed721e8365739c3bd5dd7891efbea88494 (diff) | |
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>
| -rw-r--r-- | arch/x86/kernel/e820.c | 4 | ||||
| -rw-r--r-- | include/asm-x86/e820.h | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 9af89078f7b..291e6cd9f9c 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -148,6 +148,9 @@ void __init e820_print_map(char *who) case E820_NVS: printk(KERN_CONT "(ACPI NVS)\n"); break; + case E820_UNUSABLE: + printk("(unusable)\n"); + break; default: printk(KERN_CONT "type %u\n", e820.map[i].type); break; @@ -1260,6 +1263,7 @@ static inline const char *e820_type_to_string(int e820_type) case E820_RAM: return "System RAM"; case E820_ACPI: return "ACPI Tables"; case E820_NVS: return "ACPI Non-volatile Storage"; + case E820_UNUSABLE: return "Unusable memory"; default: return "reserved"; } } diff --git a/include/asm-x86/e820.h b/include/asm-x86/e820.h index f52daf176bc..ca433c36af7 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 |