mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-12 11:36:35 +00:00
1a36a39e22
To collect the CPU registers of the crashed system allocated a single page with memblock_alloc_base and use it as a copy buffer. Replace the stop-and-store-status sigp with a store-status-at-address sigp in smp_save_dump_cpus() and smp_store_status(). In both cases the target CPU is already stopped and store-status-at-address avoids the detour via the absolute zero page. For kexec simplify s390_reset_system and call store_status() before the prefix register of the boot CPU has been set to zero. Use STPX to store the prefix register and remove dump_prefix_page. Acked-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
19 lines
432 B
C
19 lines
432 B
C
/*
|
|
* Copyright IBM Corp. 2006
|
|
* Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
|
|
*/
|
|
|
|
#ifndef _ASM_S390_RESET_H
|
|
#define _ASM_S390_RESET_H
|
|
|
|
#include <linux/list.h>
|
|
|
|
struct reset_call {
|
|
struct list_head list;
|
|
void (*fn)(void);
|
|
};
|
|
|
|
extern void register_reset_call(struct reset_call *reset);
|
|
extern void unregister_reset_call(struct reset_call *reset);
|
|
extern void s390_reset_system(void);
|
|
#endif /* _ASM_S390_RESET_H */
|