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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2005-08-01 21:11:33 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-08-01 21:37:59 -0700 |
| commit | 5d3f229fcd4409d3e182b204defc122eb7833535 (patch) | |
| tree | 89db475baaf74bde17eedd7421edbd299504fc16 /arch/s390/kernel/traps.c | |
| parent | 4374ae10e5ef577d8fd73fdadcdb37149d8b3953 (diff) | |
| download | linux-5d3f229fcd4409d3e182b204defc122eb7833535.tar.gz linux-5d3f229fcd4409d3e182b204defc122eb7833535.tar.bz2 linux-5d3f229fcd4409d3e182b204defc122eb7833535.zip | |
[PATCH] s390: kexec fixes and improvements.
Disable pseudo page fault handling before starting the new kernel and try
to use diag308 to reset the machine.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/s390/kernel/traps.c')
| -rw-r--r-- | arch/s390/kernel/traps.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index bc7b7be7acbe..6b8703ec2ae6 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -29,6 +29,7 @@ #include <linux/delay.h> #include <linux/module.h> #include <linux/kallsyms.h> +#include <linux/reboot.h> #include <asm/system.h> #include <asm/uaccess.h> @@ -675,6 +676,19 @@ asmlinkage void kernel_stack_overflow(struct pt_regs * regs) panic("Corrupt kernel stack, can't continue."); } +#ifndef CONFIG_ARCH_S390X +static int +pagex_reboot_event(struct notifier_block *this, unsigned long event, void *ptr) +{ + if (MACHINE_IS_VM) + cpcmd("SET PAGEX OFF", NULL, 0, NULL); + return NOTIFY_DONE; +} + +static struct notifier_block pagex_reboot_notifier = { + .notifier_call = &pagex_reboot_event, +}; +#endif /* init is done in lowcore.S and head.S */ @@ -735,6 +749,7 @@ void __init trap_init(void) &ext_int_pfault); #endif #ifndef CONFIG_ARCH_S390X + register_reboot_notifier(&pagex_reboot_notifier); cpcmd("SET PAGEX ON", NULL, 0, NULL); #endif } |