X-Git-Url: http://git.ozlabs.org/?p=yaboot.git;a=blobdiff_plain;f=second%2Fyaboot.c;h=3db7b4fe03f04b42c67adb703748246dcb37a066;hp=2fa47363255b3bb5ecd5d7c8731d9cde740e1eec;hb=eef44476ec965ef671c9bd239936ef6f2ee38afa;hpb=082b8310e3f92ea8da0b7011549bd86c9fd4ce95

diff --git a/second/yaboot.c b/second/yaboot.c
index 2fa4736..3db7b4f 100644
--- a/second/yaboot.c
+++ b/second/yaboot.c
@@ -114,6 +114,9 @@ int useconf = 0;
 char bootdevice[BOOTDEVSZ];
 char bootoncelabel[1024];
 char bootargs[1024];
+char bootlastlabel[BOOTLASTSZ] = {0};
+char fw_nbr_reboots[FW_NBR_REBOOTSZ] = {0};
+long  fw_reboot_cnt = 0;
 char *password = NULL;
 struct boot_fspec_t boot;
 int _machine = _MACH_Pmac;
@@ -674,7 +677,7 @@ int get_params(struct boot_param_t* params)
 
      cmdinit();
 
-     if (first) {
+     if (first && !fw_reboot_cnt) {
 	  first = 0;
 	  imagename = bootargs;
 	  word_split(&imagename, &params->args);
@@ -689,6 +692,13 @@ int get_params(struct boot_param_t* params)
 	       timeout = simple_strtol(q, NULL, 0);
      }
 
+     /* If this is a reboot due to FW detecting CAS changes then 
+      * set timeout to 1.  The last kernel booted will be booted 
+      * again automatically.  It should seem seamless to the user
+     */
+     if (fw_reboot_cnt) 
+          timeout = 1;
+
      prom_printf("boot: ");
      c = -1;
      if (timeout != -1) {
@@ -725,7 +735,9 @@ int get_params(struct boot_param_t* params)
 	  if (!imagename) {
 	       if (bootoncelabel[0] != 0)
 		    imagename = bootoncelabel;
-	       else
+	       else if (bootlastlabel[0] != 0)
+                         imagename = bootlastlabel;
+               else
 		    imagename = cfg_get_default();
 	  }
 	  if (imagename)
@@ -786,6 +798,9 @@ int get_params(struct boot_param_t* params)
      if ( useconf && (!imagename || imagename[0] == 0 ))
 	  imagename = cfg_get_default();
 
+     /* write the imagename out so it can be reused on reboot if necessary */
+     prom_set_options("boot-last-label", imagename, strlen(imagename));
+
      label = 0;
      defdevice = boot.dev;
 
@@ -1591,7 +1606,7 @@ is_elf64(loadinfo_t *loadinfo)
 	     e->e_ident[EI_MAG3]  == ELFMAG3	    &&
 	     e->e_ident[EI_CLASS] == ELFCLASS64  &&
 	     e->e_ident[EI_DATA]  == ELFDATA2MSB &&
-	     e->e_type            == ET_EXEC	    &&
+	     (e->e_type == ET_EXEC || e->e_type == ET_DYN) &&
 	     e->e_machine         == EM_PPC64);
 }
 
@@ -1676,6 +1691,7 @@ int
 yaboot_main(void)
 {
      char *ptype;
+     char *endp;
      int conf_given = 0;
      char conf_path[1024];
 
@@ -1686,6 +1702,11 @@ yaboot_main(void)
      DEBUG_F("/chosen/bootargs = %s\n", bootargs);
      prom_get_chosen("bootpath", bootdevice, BOOTDEVSZ);
      DEBUG_F("/chosen/bootpath = %s\n", bootdevice);
+     if (prom_get_options("ibm,client-architecture-support-reboot",fw_nbr_reboots, FW_NBR_REBOOTSZ) == -1 )
+        prom_get_options("ibm,fw-nbr-reboots",fw_nbr_reboots, FW_NBR_REBOOTSZ);
+     fw_reboot_cnt = simple_strtol(fw_nbr_reboots,&endp,10);
+     if (fw_reboot_cnt > 0L)
+          prom_get_options("boot-last-label", bootlastlabel, BOOTLASTSZ);
 
      /* If conf= specified on command line, it overrides
         Usage: conf=device:partition,/path/to/conffile
@@ -1729,13 +1750,13 @@ yaboot_main(void)
 	  prom_printf("%s: Unable to parse\n", bootdevice);
 	  return -1;
      }
-     if (_machine == MACH_bplan)
+     if (_machine == _MACH_bplan && !conf_given)
         boot.part++;
      DEBUG_F("After parse_device_path: dev=%s, part=%d, file=%s\n",
 	     boot.dev, boot.part, boot.file);
 
      if (!conf_given) {
-         if (_machine == _MACH_chrp || machine == _MACH_bplan)
+         if (_machine == _MACH_chrp || _machine == _MACH_bplan)
              boot.file = "/etc/";
          else if (strlen(boot.file)) {
              if (!strncmp(boot.file, "\\\\", 2))