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[PATCH] x86_64: clear_bss before set_intr_gate with early_idt_handler

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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>
This commit is contained in:
Yinghai Lu
2006-12-07 02:14:12 +01:00
committed by Andi Kleen
parent 0741f4d207
commit 3df0af0eb0
1 changed files with 4 additions and 2 deletions
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6
arch/x86_64/kernel/head64.c
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@@ -57,10 +57,12 @@ void __init x86_64_start_kernel(char * real_mode_data)
{ {
int i; 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); set_intr_gate(i, early_idt_handler);
asm volatile("lidt %0" :: "m" (idt_descr)); asm volatile("lidt %0" :: "m" (idt_descr));
clear_bss();
early_printk("Kernel alive\n"); early_printk("Kernel alive\n");