diff options
Diffstat (limited to 'arch/x86_64/kernel/traps.c')
-rw-r--r-- | arch/x86_64/kernel/traps.c | 44 |
1 files changed, 4 insertions, 40 deletions
diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index b5e09e6b5536..bf337f493189 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c | |||
@@ -428,19 +428,6 @@ static void __kprobes do_trap(int trapnr, int signr, char *str, | |||
428 | { | 428 | { |
429 | conditional_sti(regs); | 429 | conditional_sti(regs); |
430 | 430 | ||
431 | #ifdef CONFIG_CHECKING | ||
432 | { | ||
433 | unsigned long gs; | ||
434 | struct x8664_pda *pda = cpu_pda + safe_smp_processor_id(); | ||
435 | rdmsrl(MSR_GS_BASE, gs); | ||
436 | if (gs != (unsigned long)pda) { | ||
437 | wrmsrl(MSR_GS_BASE, pda); | ||
438 | printk("%s: wrong gs %lx expected %p rip %lx\n", str, gs, pda, | ||
439 | regs->rip); | ||
440 | } | ||
441 | } | ||
442 | #endif | ||
443 | |||
444 | if (user_mode(regs)) { | 431 | if (user_mode(regs)) { |
445 | struct task_struct *tsk = current; | 432 | struct task_struct *tsk = current; |
446 | 433 | ||
@@ -513,20 +500,6 @@ asmlinkage void __kprobes do_general_protection(struct pt_regs * regs, | |||
513 | { | 500 | { |
514 | conditional_sti(regs); | 501 | conditional_sti(regs); |
515 | 502 | ||
516 | #ifdef CONFIG_CHECKING | ||
517 | { | ||
518 | unsigned long gs; | ||
519 | struct x8664_pda *pda = cpu_pda + safe_smp_processor_id(); | ||
520 | rdmsrl(MSR_GS_BASE, gs); | ||
521 | if (gs != (unsigned long)pda) { | ||
522 | wrmsrl(MSR_GS_BASE, pda); | ||
523 | oops_in_progress++; | ||
524 | printk("general protection handler: wrong gs %lx expected %p\n", gs, pda); | ||
525 | oops_in_progress--; | ||
526 | } | ||
527 | } | ||
528 | #endif | ||
529 | |||
530 | if (user_mode(regs)) { | 503 | if (user_mode(regs)) { |
531 | struct task_struct *tsk = current; | 504 | struct task_struct *tsk = current; |
532 | 505 | ||
@@ -665,19 +638,6 @@ asmlinkage void __kprobes do_debug(struct pt_regs * regs, | |||
665 | struct task_struct *tsk = current; | 638 | struct task_struct *tsk = current; |
666 | siginfo_t info; | 639 | siginfo_t info; |
667 | 640 | ||
668 | #ifdef CONFIG_CHECKING | ||
669 | { | ||
670 | /* RED-PEN interaction with debugger - could destroy gs */ | ||
671 | unsigned long gs; | ||
672 | struct x8664_pda *pda = cpu_pda + safe_smp_processor_id(); | ||
673 | rdmsrl(MSR_GS_BASE, gs); | ||
674 | if (gs != (unsigned long)pda) { | ||
675 | wrmsrl(MSR_GS_BASE, pda); | ||
676 | printk("debug handler: wrong gs %lx expected %p\n", gs, pda); | ||
677 | } | ||
678 | } | ||
679 | #endif | ||
680 | |||
681 | get_debugreg(condition, 6); | 641 | get_debugreg(condition, 6); |
682 | 642 | ||
683 | if (notify_die(DIE_DEBUG, "debug", regs, condition, error_code, | 643 | if (notify_die(DIE_DEBUG, "debug", regs, condition, error_code, |
@@ -888,6 +848,10 @@ asmlinkage void __attribute__((weak)) smp_thermal_interrupt(void) | |||
888 | { | 848 | { |
889 | } | 849 | } |
890 | 850 | ||
851 | asmlinkage void __attribute__((weak)) mce_threshold_interrupt(void) | ||
852 | { | ||
853 | } | ||
854 | |||
891 | /* | 855 | /* |
892 | * 'math_state_restore()' saves the current math information in the | 856 | * 'math_state_restore()' saves the current math information in the |
893 | * old math state array, and gets the new ones from the current task | 857 | * old math state array, and gets the new ones from the current task |