Lines Matching refs:dr6
963 unsigned long dr6; in debug_read_clear_dr6() local
976 get_debugreg(dr6, 6); in debug_read_clear_dr6()
978 dr6 ^= DR6_RESERVED; /* Flip to positive polarity */ in debug_read_clear_dr6()
980 return dr6; in debug_read_clear_dr6()
1008 static bool notify_debug(struct pt_regs *regs, unsigned long *dr6) in notify_debug() argument
1017 if (notify_die(DIE_DEBUG, "debug", regs, (long)dr6, 0, SIGTRAP) == NOTIFY_STOP) in notify_debug()
1024 unsigned long dr6) in exc_debug_kernel() argument
1065 if ((dr6 & DR_STEP) && is_sysenter_singlestep(regs)) in exc_debug_kernel()
1066 dr6 &= ~DR_STEP; in exc_debug_kernel()
1071 if (!dr6) in exc_debug_kernel()
1074 if (notify_debug(regs, &dr6)) in exc_debug_kernel()
1088 if (WARN_ON_ONCE(dr6 & DR_STEP)) in exc_debug_kernel()
1098 unsigned long dr6) in exc_debug_user() argument
1127 current->thread.virtual_dr6 = (dr6 & DR_STEP); in exc_debug_user()
1141 icebp = !dr6; in exc_debug_user()
1143 if (notify_debug(regs, &dr6)) in exc_debug_user()
1155 if (dr6 & DR_BUS_LOCK) in exc_debug_user()
1159 dr6 |= current->thread.virtual_dr6; in exc_debug_user()
1160 if (dr6 & (DR_STEP | DR_TRAP_BITS) || icebp) in exc_debug_user()
1161 send_sigtrap(regs, 0, get_si_code(dr6)); in exc_debug_user()
1186 unsigned long dr6 = debug_read_clear_dr6(); in DEFINE_IDTENTRY_RAW() local
1189 exc_debug_user(regs, dr6); in DEFINE_IDTENTRY_RAW()
1191 exc_debug_kernel(regs, dr6); in DEFINE_IDTENTRY_RAW()