diff options
| author |   Michael Holzheu <holzheu@linux.vnet.ibm.com> | 2011-10-30 15:16:40 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-10-30 15:16:42 +0100 |
| commit | 60a0c68df2632feaa4a986af084650d1165d89c5 (patch) | |
| tree | f55907defeab43de02a5a3127c8d5a694a21b3a2 /arch/s390/kernel/ipl.c | |
| parent | [S390] Add real memory access functions (diff) | |
| download | linux-dev-60a0c68df2632feaa4a986af084650d1165d89c5.tar.xz linux-dev-60a0c68df2632feaa4a986af084650d1165d89c5.zip | |
[S390] kdump backend code
This patch provides the architecture specific part of the s390 kdump
support.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/ipl.c')
| -rw-r--r-- | arch/s390/kernel/ipl.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index 90769b4bc7f6..ca0520c52547 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -16,6 +16,7 @@ #include <linux/ctype.h> #include <linux/fs.h> #include <linux/gfp.h> +#include <linux/crash_dump.h> #include <asm/ipl.h> #include <asm/smp.h> #include <asm/setup.h> @@ -1740,6 +1741,9 @@ void do_restart(void) { smp_restart_with_online_cpu(); smp_send_stop(); +#ifdef CONFIG_CRASH_DUMP + crash_kexec(NULL); +#endif on_restart_trigger.action->fn(&on_restart_trigger); stop_run(&on_restart_trigger); } @@ -2010,7 +2014,7 @@ static void do_reset_calls(void) u32 dump_prefix_page; -void s390_reset_system(void) +void s390_reset_system(void (*func)(void *), void *data) { struct _lowcore *lc; @@ -2038,6 +2042,10 @@ void s390_reset_system(void) S390_lowcore.program_new_psw.addr = PSW_ADDR_AMODE | (unsigned long) s390_base_pgm_handler; + /* Store status at absolute zero */ + store_status(); + do_reset_calls(); + if (func) + func(data); } - |