first attempt at reboot stuff

[unix-history] / usr / src / sys / vax / vax / machdep.c

diff --git a/usr/src/sys/vax/vax/machdep.c b/usr/src/sys/vax/vax/machdep.c
index 3614f68..80691b6 100644 (file)
--- a/usr/src/sys/vax/vax/machdep.c
+++ b/usr/src/sys/vax/vax/machdep.c
@@ -1,4 +1,4 @@
-/*     machdep.c       3.25    %G%     */
+/*     machdep.c       3.26    %G%     */

 
 #include "../h/param.h"
 #include "../h/systm.h"
 
 #include "../h/param.h"
 #include "../h/systm.h"


@@ -13,8 +13,10 @@
 #include "../h/proc.h"
 #include "../h/psl.h"
 #include "../h/uba.h"
 #include "../h/proc.h"
 #include "../h/psl.h"
 #include "../h/uba.h"

+#include "../h/cons.h"
+#include "../h/reboot.h"

 
 

-char   version[] = "VM/UNIX (Berkeley Version 3.25) %H% \n";
+char   version[] = "VM/UNIX (Berkeley Version 3.26) %H% \n";

 int    icode[] =
 {
        0x9f19af9f,     /* pushab [&"init.vm",0]; pushab */
 int    icode[] =
 {
        0x9f19af9f,     /* pushab [&"init.vm",0]; pushab */


@@ -22,8 +24,8 @@ int   icode[] =
        0xbc5c5ed0,     /* movl sp,ap; chmk */
        0x2ffe110b,     /* $exec; brb .; "/ */
        0x2f637465,     /* etc/ */
        0xbc5c5ed0,     /* movl sp,ap; chmk */
        0x2ffe110b,     /* $exec; brb .; "/ */
        0x2f637465,     /* etc/ */

-       0x74696e69,     /* init */
-       0x006d762e,     /* .vm";  0 */
+       0x74696e69,     /* init" */
+       0x00000000,     /* \0\0\0";  0 */

        0x00000014,     /* [&"init", */
        0x00000000,     /* 0] */
 };
        0x00000014,     /* [&"init", */
        0x00000000,     /* 0] */
 };


@@ -358,3 +360,34 @@ unhang()
                ubareset();
        }
 }
                ubareset();
        }
 }

+
+int    waittime = -1;
+
+boot(panic, arghowto)
+       int panic, arghowto;
+{
+       register int howto;             /* r11 == how to boot */
+       register int devtype;           /* r10 == major of root dev */
+
+       howto = arghowto;
+       printf("howto %d\n", howto);
+       if ((howto&RB_NOSYNC)==0 && waittime < 0) {
+               waittime = 0;
+               update();
+               printf("updating (wait");
+               while (++waittime <= 10) {
+                       printf(".");
+                       sleep((caddr_t)&lbolt, PZERO);
+               }
+               printf(") done\n");
+       }
+       splx(0x1f);                     /* extreme priority */
+       devtype = major(rootdev);
+       if ((howto&RB_HALT)==0) {
+               while ((mfpr(TXCS)&TXCS_RDY) == 0)
+                       continue;
+               mtpr(TXDB, panic == RB_PANIC ? TXDB_AUTOR : TXDB_BOOT);
+       }
+       for (;;)
+               asm("halt");
+}