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[PATCH] x86_64: clear_bss before set_intr_gate with early_idt_handler
author
Yinghai Lu
<yinghai.lu@amd.com>
Thu, 7 Dec 2006 01:14:12 +0000
(
02:14
+0100)
committer
Andi Kleen
<andi@basil.nowhere.org>
Thu, 7 Dec 2006 01:14:12 +0000
(
02:14
+0100)
idt_table is in the .bss section, so clear_bss need to called at first
Signed-off-by: Yinghai Lu <yinghai.lu@amd.com>
Signed-off-by: Andi Kleen <ak@suse.de>
arch/x86_64/kernel/head64.c
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diff --git
a/arch/x86_64/kernel/head64.c
b/arch/x86_64/kernel/head64.c
index 9561eb3c5b5c5e78eed93277096eaf9d68752a64..cc230b93cd1c7081ea4483ac2aa8ec8192eb972a 100644
(file)
--- a/
arch/x86_64/kernel/head64.c
+++ b/
arch/x86_64/kernel/head64.c
@@
-57,10
+57,12
@@
void __init x86_64_start_kernel(char * real_mode_data)
{
int i;
- for (i = 0; i < 256; i++)
+ /* clear bss before set_intr_gate with early_idt_handler */
+ clear_bss();
+
+ for (i = 0; i < IDT_ENTRIES; i++)
set_intr_gate(i, early_idt_handler);
asm volatile("lidt %0" :: "m" (idt_descr));
- clear_bss();
early_printk("Kernel alive\n");