diff options
Diffstat (limited to 'arch/s390/kernel/machine_kexec.c')
| -rw-r--r-- | arch/s390/kernel/machine_kexec.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c index a80050bbe2e4..cb582649aba6 100644 --- a/arch/s390/kernel/machine_kexec.c +++ b/arch/s390/kernel/machine_kexec.c @@ -20,7 +20,6 @@ #include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/smp.h> -#include <asm/reset.h> #include <asm/ipl.h> #include <asm/diag.h> #include <asm/elf.h> @@ -143,18 +142,27 @@ static noinline void __machine_kdump(void *image) } #endif +static unsigned long do_start_kdump(unsigned long addr) +{ + struct kimage *image = (struct kimage *) addr; + int (*start_kdump)(int) = (void *)image->start; + int rc; + + __arch_local_irq_stnsm(0xfb); /* disable DAT */ + rc = start_kdump(0); + __arch_local_irq_stosm(0x04); /* enable DAT */ + return rc; +} + /* * Check if kdump checksums are valid: We call purgatory with parameter "0" */ static bool kdump_csum_valid(struct kimage *image) { #ifdef CONFIG_CRASH_DUMP - int (*start_kdump)(int) = (void *)image->start; int rc; - __arch_local_irq_stnsm(0xfb); /* disable DAT */ - rc = start_kdump(0); - __arch_local_irq_stosm(0x04); /* enable DAT */ + rc = CALL_ON_STACK(do_start_kdump, S390_lowcore.nodat_stack, 1, image); return rc == 0; #else return false; @@ -253,6 +261,7 @@ void machine_shutdown(void) void machine_crash_shutdown(struct pt_regs *regs) { + set_os_info_reipl_block(); } /* |
