Lines Matching refs:dr6
779 unsigned long dr6; in debug_read_clear_dr6() local
792 get_debugreg(dr6, 6); in debug_read_clear_dr6()
794 dr6 ^= DR6_RESERVED; /* Flip to positive polarity */ in debug_read_clear_dr6()
796 return dr6; in debug_read_clear_dr6()
824 static bool notify_debug(struct pt_regs *regs, unsigned long *dr6) in notify_debug() argument
833 if (notify_die(DIE_DEBUG, "debug", regs, (long)dr6, 0, SIGTRAP) == NOTIFY_STOP) in notify_debug()
840 unsigned long dr6) in exc_debug_kernel() argument
881 if ((dr6 & DR_STEP) && is_sysenter_singlestep(regs)) in exc_debug_kernel()
882 dr6 &= ~DR_STEP; in exc_debug_kernel()
890 if (!dr6) in exc_debug_kernel()
893 if (notify_debug(regs, &dr6)) in exc_debug_kernel()
907 if (WARN_ON_ONCE(dr6 & DR_STEP)) in exc_debug_kernel()
917 unsigned long dr6) in exc_debug_user() argument
946 current->thread.virtual_dr6 = (dr6 & DR_STEP); in exc_debug_user()
960 icebp = !dr6; in exc_debug_user()
962 if (notify_debug(regs, &dr6)) in exc_debug_user()
974 dr6 |= current->thread.virtual_dr6; in exc_debug_user()
975 if (dr6 & (DR_STEP | DR_TRAP_BITS) || icebp) in exc_debug_user()
976 send_sigtrap(regs, 0, get_si_code(dr6)); in exc_debug_user()
1001 unsigned long dr6 = debug_read_clear_dr6(); in DEFINE_IDTENTRY_RAW() local
1004 exc_debug_user(regs, dr6); in DEFINE_IDTENTRY_RAW()
1006 exc_debug_kernel(regs, dr6); in DEFINE_IDTENTRY_RAW()