AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

[PATCH] x86_64: clear_bss before set_intr_gate with early_idt_handler

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/x86_64/kernel/head64.c
View File

@ -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");