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Commit 3df0af0e authored by Yinghai Lu's avatar Yinghai Lu Committed by Andi Kleen
Browse files

[PATCH] x86_64: clear_bss before set_intr_gate with early_idt_handler 



idt_table is in the .bss section, so clear_bss need to called at first

Signed-off-by: default avatarYinghai Lu <yinghai.lu@amd.com>
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
parent 0741f4d2

arch/x86_64/kernel/head64.c

+4 −2
Original line number Diff line number Diff line
@@ -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");