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Diffstat (limited to 'arch/s390/kernel/ipl.c')
-rw-r--r--arch/s390/kernel/ipl.c59
1 files changed, 14 insertions, 45 deletions
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index a36bea1188d9..9e9972e8a52b 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -609,42 +609,12 @@ static ssize_t on_panic_store(struct subsystem *subsys, const char *buf,
609static struct subsys_attribute on_panic_attr = 609static struct subsys_attribute on_panic_attr =
610 __ATTR(on_panic, 0644, on_panic_show, on_panic_store); 610 __ATTR(on_panic, 0644, on_panic_show, on_panic_store);
611 611
612static void print_fcp_block(struct ipl_parameter_block *fcp_block)
613{
614 printk(KERN_EMERG "wwpn: %016llx\n",
615 (unsigned long long)fcp_block->ipl_info.fcp.wwpn);
616 printk(KERN_EMERG "lun: %016llx\n",
617 (unsigned long long)fcp_block->ipl_info.fcp.lun);
618 printk(KERN_EMERG "bootprog: %lld\n",
619 (unsigned long long)fcp_block->ipl_info.fcp.bootprog);
620 printk(KERN_EMERG "br_lba: %lld\n",
621 (unsigned long long)fcp_block->ipl_info.fcp.br_lba);
622 printk(KERN_EMERG "device: %llx\n",
623 (unsigned long long)fcp_block->ipl_info.fcp.devno);
624 printk(KERN_EMERG "opt: %x\n", fcp_block->ipl_info.fcp.opt);
625}
626
627void do_reipl(void) 612void do_reipl(void)
628{ 613{
629 struct ccw_dev_id devid; 614 struct ccw_dev_id devid;
630 static char buf[100]; 615 static char buf[100];
631 char loadparm[LOADPARM_LEN + 1]; 616 char loadparm[LOADPARM_LEN + 1];
632 617
633 switch (reipl_type) {
634 case IPL_TYPE_CCW:
635 reipl_get_ascii_loadparm(loadparm);
636 printk(KERN_EMERG "reboot on ccw device: 0.0.%04x\n",
637 reipl_block_ccw->ipl_info.ccw.devno);
638 printk(KERN_EMERG "loadparm = '%s'\n", loadparm);
639 break;
640 case IPL_TYPE_FCP:
641 printk(KERN_EMERG "reboot on fcp device:\n");
642 print_fcp_block(reipl_block_fcp);
643 break;
644 default:
645 break;
646 }
647
648 switch (reipl_method) { 618 switch (reipl_method) {
649 case IPL_METHOD_CCW_CIO: 619 case IPL_METHOD_CCW_CIO:
650 devid.devno = reipl_block_ccw->ipl_info.ccw.devno; 620 devid.devno = reipl_block_ccw->ipl_info.ccw.devno;
@@ -654,6 +624,7 @@ void do_reipl(void)
654 reipl_ccw_dev(&devid); 624 reipl_ccw_dev(&devid);
655 break; 625 break;
656 case IPL_METHOD_CCW_VM: 626 case IPL_METHOD_CCW_VM:
627 reipl_get_ascii_loadparm(loadparm);
657 if (strlen(loadparm) == 0) 628 if (strlen(loadparm) == 0)
658 sprintf(buf, "IPL %X", 629 sprintf(buf, "IPL %X",
659 reipl_block_ccw->ipl_info.ccw.devno); 630 reipl_block_ccw->ipl_info.ccw.devno);
@@ -683,7 +654,6 @@ void do_reipl(void)
683 diag308(DIAG308_IPL, NULL); 654 diag308(DIAG308_IPL, NULL);
684 break; 655 break;
685 } 656 }
686 printk(KERN_EMERG "reboot failed!\n");
687 signal_processor(smp_processor_id(), sigp_stop_and_store_status); 657 signal_processor(smp_processor_id(), sigp_stop_and_store_status);
688} 658}
689 659
@@ -692,19 +662,6 @@ static void do_dump(void)
692 struct ccw_dev_id devid; 662 struct ccw_dev_id devid;
693 static char buf[100]; 663 static char buf[100];
694 664
695 switch (dump_type) {
696 case IPL_TYPE_CCW:
697 printk(KERN_EMERG "Automatic dump on ccw device: 0.0.%04x\n",
698 dump_block_ccw->ipl_info.ccw.devno);
699 break;
700 case IPL_TYPE_FCP:
701 printk(KERN_EMERG "Automatic dump on fcp device:\n");
702 print_fcp_block(dump_block_fcp);
703 break;
704 default:
705 return;
706 }
707
708 switch (dump_method) { 665 switch (dump_method) {
709 case IPL_METHOD_CCW_CIO: 666 case IPL_METHOD_CCW_CIO:
710 smp_send_stop(); 667 smp_send_stop();
@@ -1037,15 +994,21 @@ static void do_reset_calls(void)
1037} 994}
1038 995
1039extern void reset_mcck_handler(void); 996extern void reset_mcck_handler(void);
997extern void reset_pgm_handler(void);
998extern __u32 dump_prefix_page;
1040 999
1041void s390_reset_system(void) 1000void s390_reset_system(void)
1042{ 1001{
1043 struct _lowcore *lc; 1002 struct _lowcore *lc;
1044 1003
1045 /* Stack for interrupt/machine check handler */
1046 lc = (struct _lowcore *)(unsigned long) store_prefix(); 1004 lc = (struct _lowcore *)(unsigned long) store_prefix();
1005
1006 /* Stack for interrupt/machine check handler */
1047 lc->panic_stack = S390_lowcore.panic_stack; 1007 lc->panic_stack = S390_lowcore.panic_stack;
1048 1008
1009 /* Save prefix page address for dump case */
1010 dump_prefix_page = (unsigned long) lc;
1011
1049 /* Disable prefixing */ 1012 /* Disable prefixing */
1050 set_prefix(0); 1013 set_prefix(0);
1051 1014
@@ -1056,5 +1019,11 @@ void s390_reset_system(void)
1056 S390_lowcore.mcck_new_psw.mask = PSW_KERNEL_BITS & ~PSW_MASK_MCHECK; 1019 S390_lowcore.mcck_new_psw.mask = PSW_KERNEL_BITS & ~PSW_MASK_MCHECK;
1057 S390_lowcore.mcck_new_psw.addr = 1020 S390_lowcore.mcck_new_psw.addr =
1058 PSW_ADDR_AMODE | (unsigned long) &reset_mcck_handler; 1021 PSW_ADDR_AMODE | (unsigned long) &reset_mcck_handler;
1022
1023 /* Set new program check handler */
1024 S390_lowcore.program_new_psw.mask = PSW_KERNEL_BITS & ~PSW_MASK_MCHECK;
1025 S390_lowcore.program_new_psw.addr =
1026 PSW_ADDR_AMODE | (unsigned long) &reset_pgm_handler;
1027
1059 do_reset_calls(); 1028 do_reset_calls();
1060} 1029}