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[PATCH] s390: kexec fixes and improvements.

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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>
This commit is contained in:
Heiko Carstens
2005-08-01 21:11:33 -07:00
committed by Linus Torvalds
parent 4374ae10e5
commit 5d3f229fcd
5 changed files with 109 additions and 5 deletions
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7
arch/s390/kernel/machine_kexec.c
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@@ -70,6 +70,8 @@ machine_kexec(struct kimage *image)
for (;;);
}
extern void pfault_fini(void);
static void
kexec_halt_all_cpus(void *kernel_image)
{
@@ -78,6 +80,11 @@ kexec_halt_all_cpus(void *kernel_image)
struct kimage *image;
relocate_kernel_t data_mover;
#ifdef CONFIG_PFAULT
if (MACHINE_IS_VM)
pfault_fini();
#endif
if (atomic_compare_and_swap(-1, smp_processor_id(), &cpuid))
signal_processor(smp_processor_id(), sigp_stop);