* [PATCH] acpi - Add support for AddressRangeUnusuable ACPI memory type
@ 2008-07-24 16:49 Cihula, Joseph
2008-07-28 14:13 ` Ingo Molnar
0 siblings, 1 reply; 2+ messages in thread
From: Cihula, Joseph @ 2008-07-24 16:49 UTC (permalink / raw)
To: linux-kernel, x86; +Cc: Kleen, Andi, Wang, Shane, Wei, Gang, Brown, Len
[-- Attachment #1: Type: text/plain, Size: 2312 bytes --]
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.
This patch applies cleanly to 2.6.26.
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>
--- linux-2.6.26/arch/x86/kernel/e820_32.c 2008-07-13
14:51:29.000000000 -0700
+++ linux-2.6.26-acpi/arch/x86/kernel/e820_32.c 2008-07-23
13:25:44.000000000 -0700
@@ -198,6 +198,7 @@
case E820_RAM: res->name = "System RAM"; break;
case E820_ACPI: res->name = "ACPI Tables"; break;
case E820_NVS: res->name = "ACPI Non-volatile Storage";
break;
+ case E820_UNUSABLE: res->name = "Unusable memory";
break;
default: res->name = "reserved";
}
res->start = e820.map[i].addr;
@@ -604,6 +605,9 @@
case E820_NVS:
printk("(ACPI NVS)\n");
break;
+ case E820_UNUSABLE:
+ printk("(unusable)\n");
+ break;
default: printk("type %u\n", e820.map[i].type);
break;
}
--- linux-2.6.26/arch/x86/kernel/e820_64.c 2008-07-13
14:51:29.000000000 -0700
+++ linux-2.6.26-acpi/arch/x86/kernel/e820_64.c 2008-07-23
13:27:29.000000000 -0700
@@ -336,6 +336,7 @@
case E820_RAM: res->name = "System RAM"; break;
case E820_ACPI: res->name = "ACPI Tables"; break;
case E820_NVS: res->name = "ACPI Non-volatile Storage";
break;
+ case E820_UNUSABLE: res->name = "Unusable memory";
break;
default: res->name = "reserved";
}
res->start = e820.map[i].addr;
@@ -495,6 +496,9 @@
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;
--- linux-2.6.26/include/asm-x86/e820.h 2008-07-13 14:51:29.000000000
-0700
+++ linux-2.6.26-acpi/include/asm-x86/e820.h 2008-07-23
13:25:44.000000000 -0700
@@ -8,6 +8,7 @@
#define E820_RESERVED 2
#define E820_ACPI 3
#define E820_NVS 4
+#define E820_UNUSABLE 5
#ifndef __ASSEMBLY__
struct e820entry {
<<linux-acpi-2.6.26.patch>>
[-- Attachment #2: linux-acpi-2.6.26.patch --]
[-- Type: application/octet-stream, Size: 1731 bytes --]
--- linux-2.6.26/arch/x86/kernel/e820_32.c 2008-07-13 14:51:29.000000000 -0700
+++ linux-2.6.26-acpi/arch/x86/kernel/e820_32.c 2008-07-23 13:25:44.000000000 -0700
@@ -198,6 +198,7 @@
case E820_RAM: res->name = "System RAM"; break;
case E820_ACPI: res->name = "ACPI Tables"; break;
case E820_NVS: res->name = "ACPI Non-volatile Storage"; break;
+ case E820_UNUSABLE: res->name = "Unusable memory"; break;
default: res->name = "reserved";
}
res->start = e820.map[i].addr;
@@ -604,6 +605,9 @@
case E820_NVS:
printk("(ACPI NVS)\n");
break;
+ case E820_UNUSABLE:
+ printk("(unusable)\n");
+ break;
default: printk("type %u\n", e820.map[i].type);
break;
}
--- linux-2.6.26/arch/x86/kernel/e820_64.c 2008-07-13 14:51:29.000000000 -0700
+++ linux-2.6.26-acpi/arch/x86/kernel/e820_64.c 2008-07-23 13:27:29.000000000 -0700
@@ -336,6 +336,7 @@
case E820_RAM: res->name = "System RAM"; break;
case E820_ACPI: res->name = "ACPI Tables"; break;
case E820_NVS: res->name = "ACPI Non-volatile Storage"; break;
+ case E820_UNUSABLE: res->name = "Unusable memory"; break;
default: res->name = "reserved";
}
res->start = e820.map[i].addr;
@@ -495,6 +496,9 @@
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;
--- linux-2.6.26/include/asm-x86/e820.h 2008-07-13 14:51:29.000000000 -0700
+++ linux-2.6.26-acpi/include/asm-x86/e820.h 2008-07-23 13:25:44.000000000 -0700
@@ -8,6 +8,7 @@
#define E820_RESERVED 2
#define E820_ACPI 3
#define E820_NVS 4
+#define E820_UNUSABLE 5
#ifndef __ASSEMBLY__
struct e820entry {
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] acpi - Add support for AddressRangeUnusuable ACPI memory type
2008-07-24 16:49 [PATCH] acpi - Add support for AddressRangeUnusuable ACPI memory type Cihula, Joseph
@ 2008-07-28 14:13 ` Ingo Molnar
0 siblings, 0 replies; 2+ messages in thread
From: Ingo Molnar @ 2008-07-28 14:13 UTC (permalink / raw)
To: Cihula, Joseph
Cc: linux-kernel, x86, Kleen, Andi, Wang, Shane, Wei, Gang, Brown,
Len, Yinghai Lu
* Cihula, Joseph <joseph.cihula@intel.com> wrote:
> 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.
>
> This patch applies cleanly to 2.6.26.
Looks good to me, but the 32-bit and 64-bit files that this patch
changes got unified in the latest upstream tree - could you please
resend this against tip/master:
http://people.redhat.com/mingo/tip.git/README
thanks,
Ingo
^ permalink raw reply [flat|nested] 2+ messages in thread
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2008-07-28 14:13 ` Ingo Molnar
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