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i386: convert hardware exception 16 to an interrupt gate
author
Alexander van Heukelum
<heukelum@fastmail.fm>
Tue, 9 Sep 2008 19:56:09 +0000
(21:56 +0200)
committer
Ingo Molnar
<mingo@elte.hu>
Mon, 13 Oct 2008 08:20:33 +0000
(10:20 +0200)
Handle coprocessor error exception with interrupt initially off.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/traps_32.c
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diff --git
a/arch/x86/kernel/traps_32.c
b/arch/x86/kernel/traps_32.c
index 0039856b6344380c4dc6830d0ef7f287d764ec47..5ab4c3fc7c1da9c810659ac5ae8db64bc6ab7004 100644
(file)
--- a/
arch/x86/kernel/traps_32.c
+++ b/
arch/x86/kernel/traps_32.c
@@
-1088,6
+1088,7
@@
void math_error(void __user *ip)
void do_coprocessor_error(struct pt_regs *regs, long error_code)
{
+ conditional_sti(regs);
ignore_fpu_irq = 1;
math_error((void __user *)regs->ip);
}
@@
-1279,7
+1280,7
@@
void __init trap_init(void)
set_intr_gate(13, &general_protection);
set_intr_gate(14, &page_fault);
set_intr_gate(15, &spurious_interrupt_bug);
- set_
trap
_gate(16, &coprocessor_error);
+ set_
intr
_gate(16, &coprocessor_error);
set_trap_gate(17, &alignment_check);
#ifdef CONFIG_X86_MCE
set_trap_gate(18, &machine_check);