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authorYinghai Lu <yhlu.kernel@gmail.com>2008-07-15 00:03:44 -0700
committerIngo Molnar <mingo@elte.hu>2008-07-18 14:11:58 +0200
commitcaadbdce240c43e3e46c82fce6c00eb7f01e1beb (patch)
tree58881abbeb4e88b17debecd2b23e1a9b8c441143
parent1f067167a83d1c7f80437fd1d32b55508aaca009 (diff)
downloadop-kernel-dev-caadbdce240c43e3e46c82fce6c00eb7f01e1beb.zip
op-kernel-dev-caadbdce240c43e3e46c82fce6c00eb7f01e1beb.tar.gz
x86: enable memory tester support on 32-bit
only supports memory below max_low_pfn. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--Documentation/kernel-parameters.txt2
-rw-r--r--arch/x86/Kconfig1
-rw-r--r--arch/x86/mm/init_32.c3
3 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 09ad745..70624dd 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1206,7 +1206,7 @@ and is between 256 and 4096 characters. It is defined in the file
or
memmap=0x10000$0x18690000
- memtest= [KNL,X86_64] Enable memtest
+ memtest= [KNL,X86] Enable memtest
Format: <integer>
range: 0,4 : pattern number
default : 0 <disable>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 96e0c2e..03980cb 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -447,7 +447,6 @@ config PARAVIRT_DEBUG
config MEMTEST
bool "Memtest"
- depends on X86_64
help
This option adds a kernel parameter 'memtest', which allows memtest
to be set.
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 9689a51..3eeab6d 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -844,6 +844,9 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
reserve_early(table_start << PAGE_SHIFT,
table_end << PAGE_SHIFT, "PGTABLE");
+ if (!after_init_bootmem)
+ early_memtest(start, end);
+
return end >> PAGE_SHIFT;
}
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