From: Thomas Veerman <thomas@minix3.org>
Date: Thu, 28 Feb 2013 17:04:15 +0000 (+0000)
Subject: Kernel: make shutdown more verbose
X-Git-Tag: v3.3.0~1113
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/zlib_tech.html?a=commitdiff_plain;h=refs%2Fchanges%2F77%2F377%2F2;p=minix.git

Kernel: make shutdown more verbose

Change-Id: Iab5fed4cb617a9dbce164ff81c7dedf408e9fd98
---

diff --git a/kernel/arch/i386/arch_reset.c b/kernel/arch/i386/arch_reset.c
index c78e8746d..2b4fc7fed 100644
--- a/kernel/arch/i386/arch_reset.c
+++ b/kernel/arch/i386/arch_reset.c
@@ -84,13 +84,13 @@ void
 poweroff(void)
 {
 	const char *shutdown_str;
-	
+
 	/* Bochs/QEMU poweroff */
 	shutdown_str = "Shutdown";
         while (*shutdown_str) outb(0x8900, *(shutdown_str++));
-	
-	/* fallback option: reset */
-	reset();
+
+	/* fallback option: hang */
+	for (; ; ) halt_cpu();
 }
 
 __dead void arch_shutdown(int how)
@@ -120,12 +120,12 @@ __dead void arch_shutdown(int how)
 
 	switch (how) {
 		case RBT_HALT:
-			/* Stop */
+			/* Hang */
 			for (; ; ) halt_cpu();
 			NOT_REACHABLE;
 			
 		case RBT_POWEROFF:
-			/* Power off if possible, reset otherwise */
+			/* Power off if possible, hang otherwise */
 			poweroff();
 			NOT_REACHABLE;
 
diff --git a/kernel/main.c b/kernel/main.c
index 48ac62368..87ec3523a 100644
--- a/kernel/main.c
+++ b/kernel/main.c
@@ -351,6 +351,8 @@ void minix_shutdown(timer_t *tp)
  * down MINIX. How to shutdown is in the argument: RBT_HALT (return to the
  * monitor), RBT_RESET (hard reset). 
  */
+  int how;
+
 #ifdef CONFIG_SMP
   /* 
    * FIXME
@@ -364,7 +366,27 @@ void minix_shutdown(timer_t *tp)
 #endif
   hw_intr_disable_all();
   stop_local_timer();
-  arch_shutdown(tp ? tmr_arg(tp)->ta_int : RBT_PANIC);
+
+  how = tp ? tmr_arg(tp)->ta_int : RBT_PANIC;
+
+  /* Show shutdown message */
+  direct_cls();
+  switch(how) {
+  case RBT_HALT:
+	direct_print("MINIX has halted. "
+		     "It is safe to turn off your computer.\n");
+	break;
+  case RBT_POWEROFF:
+	direct_print("MINIX has halted and will now power off.\n");
+	break;
+  case RBT_DEFAULT:
+  case RBT_REBOOT:
+  case RBT_RESET:
+  default:
+	direct_print("MINIX will now reset.\n");
+	break;
+  }
+  arch_shutdown(how);
 }
 
 /*===========================================================================*