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authorMichael Holzheu <holzheu@de.ibm.com>2008-01-26 08:11:11 -0500
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-01-26 08:11:19 -0500
commit99ca4e582d4a4088969681efff97be44d98421a1 (patch)
treef6478bcdc30d84cc6f67485bd78c9ba54827e07e /include/asm-s390/ipl.h
parentceb3dfbae1d3faacaedfc64c913fd18cd3624f72 (diff)
[S390] kernel: Shutdown Actions Interface
In case of a kernel panic it is currently possible to specify that a dump should be created, the system should be rebooted or stopped. Virtual sysfs files under the directory /sys/firmware/ are used for that configuration. In addition to that, there are kernel parameters 'vmhalt', 'vmpoff' and 'vmpanic', which can be used to specify z/VM commands, which are automatically executed in case of halt, power off or a kernel panic. This patch combines both functionalities and allows to specify the z/VM CP commands also via sysfs attributes. In addition to that, it enhances the existing handling of shutdown triggers (e.g. halt or panic) and associated shutdown actions (e.g. dump or reipl) and makes it more flexible. Signed-off-by: Michael Holzheu <holzheu@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/asm-s390/ipl.h')
-rw-r--r--include/asm-s390/ipl.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/asm-s390/ipl.h b/include/asm-s390/ipl.h
index 2c40fd3a137f..d0dcc9c5f7c3 100644
--- a/include/asm-s390/ipl.h
+++ b/include/asm-s390/ipl.h
@@ -83,6 +83,8 @@ extern u32 dump_prefix_page;
83extern unsigned int zfcpdump_prefix_array[]; 83extern unsigned int zfcpdump_prefix_array[];
84 84
85extern void do_reipl(void); 85extern void do_reipl(void);
86extern void do_halt(void);
87extern void do_poff(void);
86extern void ipl_save_parameters(void); 88extern void ipl_save_parameters(void);
87 89
88enum { 90enum {
@@ -118,7 +120,7 @@ struct ipl_info
118}; 120};
119 121
120extern struct ipl_info ipl_info; 122extern struct ipl_info ipl_info;
121extern void setup_ipl_info(void); 123extern void setup_ipl(void);
122 124
123/* 125/*
124 * DIAG 308 support 126 * DIAG 308 support