Lines Matching refs:kcb
208 static nokprobe_inline void save_previous_kprobe(struct kprobe_ctlblk *kcb) in save_previous_kprobe() argument
210 kcb->prev_kprobe.kp = kprobe_running(); in save_previous_kprobe()
211 kcb->prev_kprobe.status = kcb->kprobe_status; in save_previous_kprobe()
212 kcb->prev_kprobe.saved_msr = kcb->kprobe_saved_msr; in save_previous_kprobe()
215 static nokprobe_inline void restore_previous_kprobe(struct kprobe_ctlblk *kcb) in restore_previous_kprobe() argument
217 __this_cpu_write(current_kprobe, kcb->prev_kprobe.kp); in restore_previous_kprobe()
218 kcb->kprobe_status = kcb->prev_kprobe.status; in restore_previous_kprobe()
219 kcb->kprobe_saved_msr = kcb->prev_kprobe.saved_msr; in restore_previous_kprobe()
223 struct kprobe_ctlblk *kcb) in set_current_kprobe() argument
226 kcb->kprobe_saved_msr = regs->msr; in set_current_kprobe()
275 struct kprobe_ctlblk *kcb; in kprobe_handler() local
289 kcb = get_kprobe_ctlblk(); in kprobe_handler()
322 if (kcb->kprobe_status == KPROBE_HIT_SS && is_trap(insn)) { in kprobe_handler()
326 kcb->kprobe_saved_msr); in kprobe_handler()
336 save_previous_kprobe(kcb); in kprobe_handler()
337 set_current_kprobe(p, regs, kcb); in kprobe_handler()
339 kcb->kprobe_status = KPROBE_REENTER; in kprobe_handler()
344 restore_previous_kprobe(kcb); in kprobe_handler()
353 kcb->kprobe_status = KPROBE_HIT_ACTIVE; in kprobe_handler()
354 set_current_kprobe(p, regs, kcb); in kprobe_handler()
369 kcb->kprobe_status = KPROBE_HIT_SSDONE; in kprobe_handler()
376 kcb->kprobe_status = KPROBE_HIT_SS; in kprobe_handler()
397 struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); in kprobe_post_handler() local
407 if ((kcb->kprobe_status != KPROBE_REENTER) && cur->post_handler) { in kprobe_post_handler()
408 kcb->kprobe_status = KPROBE_HIT_SSDONE; in kprobe_post_handler()
414 regs_set_return_msr(regs, regs->msr | kcb->kprobe_saved_msr); in kprobe_post_handler()
417 if (kcb->kprobe_status == KPROBE_REENTER) { in kprobe_post_handler()
418 restore_previous_kprobe(kcb); in kprobe_post_handler()
440 struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); in kprobe_fault_handler() local
443 switch(kcb->kprobe_status) { in kprobe_fault_handler()
457 kcb->kprobe_saved_msr); in kprobe_fault_handler()
458 if (kcb->kprobe_status == KPROBE_REENTER) in kprobe_fault_handler()
459 restore_previous_kprobe(kcb); in kprobe_fault_handler()