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Commit b939bde2 authored by Alexander van Heukelum's avatar Alexander van Heukelum Committed by Ingo Molnar
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i386: convert hardware exception 19 to an interrupt gate 



Handle SIMD coprocessor exception with interrupt initially off.

Signed-off-by: default avatarAlexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent eb642f62

arch/x86/kernel/traps_32.c

+3 −1
Original line number Diff line number Diff line
@@ -1144,6 +1144,8 @@ static void simd_math_error(void __user *ip) 


void do_simd_coprocessor_error(struct pt_regs *regs, long error_code)

{

	conditional_sti(regs);



	if (cpu_has_xmm) {

		/* Handle SIMD FPU exceptions on PIII+ processors. */

		ignore_fpu_irq = 1;
@@ -1294,7 +1296,7 @@ void __init trap_init(void) 
#ifdef CONFIG_X86_MCE

	set_intr_gate(18, &machine_check);

#endif

	set_trap_gate(19, &simd_coprocessor_error);

	set_intr_gate(19, &simd_coprocessor_error);



	if (cpu_has_fxsr) {

		printk(KERN_INFO "Enabling fast FPU save and restore... ");