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authorCihula, Joseph <joseph.cihula@intel.com>2008-08-20 16:43:07 -0700
committerIngo Molnar <mingo@elte.hu>2008-08-21 13:22:13 +0200
commit671eef85a3e885dff4ce210d8774ad50a91d5967 (patch)
tree6a89380a2ebdf8cedde7969f8a9ec23a5045ceca /arch/x86/kernel/e820.c
parentb76d69ed721e8365739c3bd5dd7891efbea88494 (diff)
downloadblackbird-op-linux-671eef85a3e885dff4ce210d8774ad50a91d5967.tar.gz
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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>
Diffstat (limited to 'arch/x86/kernel/e820.c')
-rw-r--r--arch/x86/kernel/e820.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 9af89078f7bb..291e6cd9f9c0 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";
}
}
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