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linux/arch/s390/kernel
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Michael Holzheu 3ab121ab18 [S390] kernel: Add z/VM LGR detection 
Currently the following mechanisms are available to move active
Linux on System z instances between machines:
* z/VM 6.2 SSI (Single System Image)
* Suspend/resume
For moving Linux instances in this patch the term LGR (Linux Guest
Relocation) is used. Because such an operation is critical, it
should be detectable from Linux. With this patch for both, a live
system and a kernel dump, the information about LGRs is accessible.
To identify a guest, stsi and stfle data is used. A new function
lgr_info_log() compares the current data (lgr_info_cur) with the
last recorded one (lgr_info_last). In case the two data sets differ,
lgr_info_cur is logged to the "lgr" s390dbf.

The following trigger points call lgr_info_log():
* panic
* die
* kdump
* LGR timer
* PSW restart
* QDIO recovery
* resume

This patch also changes the s390dbf hex_ascii view. Now only printable ASCII
characters are shown.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 		2012-03-11 11:59:29 -04:00
..
vdso32 [S390] vdso: disable gcov profiling 2011-05-23 10:24:29 +02:00
vdso64 [S390] vdso: disable gcov profiling 2011-05-23 10:24:29 +02:00
Makefile [S390] kernel: Add z/VM LGR detection 2012-03-11 11:59:29 -04:00
asm-offsets.c [S390] rework idle code 2012-03-11 11:59:28 -04:00
audit.c
…
audit.h
…
base.S [S390] entry[64].S improvements 2011-12-27 11:27:12 +01:00
bitmap.c [S390] move EXPORT_SYMBOLs to definitions 2009-03-26 15:24:11 +01:00
compat_audit.c
…
compat_exec_domain.c
…
compat_linux.c [S390] ipc: call generic sys_ipc demultiplexer 2011-12-27 11:27:13 +01:00
compat_linux.h Mark arguments to certain syscalls as being const 2010-08-13 16:53:13 -07:00
compat_ptrace.h [S390] ptrace cleanup 2011-01-05 12:47:31 +01:00
compat_signal.c [S390] return address of compat signals 2011-12-27 11:27:14 +01:00
compat_wrapper.S sys_poll: fix incorrect type for 'timeout' parameter 2012-02-21 17:24:20 -08:00
cpcmd.c [S390] convert cpcmd printks to pr_xxx macros. 2008-12-25 13:39:19 +01:00
crash.c
…
crash_dump.c [S390] crash_dump: remove duplicate include 2012-02-24 18:01:36 +01:00
debug.c [S390] kernel: Add z/VM LGR detection 2012-03-11 11:59:29 -04:00
diag.c [S390] replace diag10() with diag10_range() function 2011-05-10 17:13:43 +02:00
dis.c [S390] disassembler: mark exception causing instructions 2011-12-27 11:27:14 +01:00
early.c [S390] kernel: Add z/VM LGR detection 2012-03-11 11:59:29 -04:00
ebcdic.c
…
entry.S [S390] rework idle code 2012-03-11 11:59:28 -04:00
entry.h [S390] irq: external interrupt code passing 2012-03-11 11:59:29 -04:00
entry64.S [S390] rework idle code 2012-03-11 11:59:28 -04:00
ftrace.c [S390] cleanup ftrace backend functions 2011-01-05 12:47:31 +01:00
head.S [S390] entry[64].S improvements 2011-12-27 11:27:12 +01:00
head31.S [S390] smp: external call vs. emergency signal 2011-10-30 15:16:44 +01:00
head64.S [S390] smp: external call vs. emergency signal 2011-10-30 15:16:44 +01:00
head_kdump.S [S390] kdump backend code 2011-10-30 15:16:42 +01:00
init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
ipl.c [S390] kernel: Add z/VM LGR detection 2012-03-11 11:59:29 -04:00
irq.c [S390] irq: external interrupt code passing 2012-03-11 11:59:29 -04:00
jump_label.c s390/jump-label: add arch_jump_label_transform_static() 2011-10-25 11:54:37 -07:00
kprobes.c [S390] sparse: fix sparse static warnings 2011-10-30 15:16:46 +01:00
lgr.c [S390] kernel: Add z/VM LGR detection 2012-03-11 11:59:29 -04:00
machine_kexec.c [S390] kernel: Add z/VM LGR detection 2012-03-11 11:59:29 -04:00
mcount.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
mcount64.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
mem_detect.c [S390] Rework create_mem_hole() function 2011-12-27 11:27:09 +01:00
module.c modules: make arch's use default loader hooks 2011-07-24 22:06:04 +09:30
nmi.c [S390] rework idle code 2012-03-11 11:59:28 -04:00
process.c [S390] rework idle code 2012-03-11 11:59:28 -04:00
processor.c [S390] avoid warning in show_cpuinfo 2011-10-30 15:16:15 +01:00
ptrace.c compat: fix compile breakage on s390 2012-02-27 07:54:27 -08:00
reipl.S [S390] kdump backend code 2011-10-30 15:16:42 +01:00
reipl64.S [S390] entry[64].S improvements 2011-12-27 11:27:12 +01:00
relocate_kernel.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
relocate_kernel64.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
s390_ksyms.c [S390] move sie code to entry.S 2011-07-24 10:48:21 +02:00
sclp.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
setup.c [S390] rework smp code 2012-03-11 11:59:28 -04:00
signal.c compat: fix compile breakage on s390 2012-02-27 07:54:27 -08:00
smp.c [S390] kernel: Add z/VM LGR detection 2012-03-11 11:59:29 -04:00
stacktrace.c [S390] Fix stacktrace compile bug. 2008-07-17 17:22:09 +02:00
suspend.c [S390] sparse: fix sparse warnings about missing prototypes 2011-10-30 15:16:46 +01:00
swsusp_asm64.S [S390] kernel: Add z/VM LGR detection 2012-03-11 11:59:29 -04:00
sys_s390.c [S390] ipc: call generic sys_ipc demultiplexer 2011-12-27 11:27:13 +01:00
syscalls.S [S390] wire up process_vm syscalls 2011-11-14 11:19:08 +01:00
sysinfo.c [S390] sparse: fix sparse warnings in math-emu 2011-10-30 15:16:46 +01:00
time.c [S390] irq: external interrupt code passing 2012-03-11 11:59:29 -04:00
topology.c [S390] rework smp code 2012-03-11 11:59:28 -04:00
traps.c [S390] kernel: Add z/VM LGR detection 2012-03-11 11:59:29 -04:00
vdso.c [S390] rework smp code 2012-03-11 11:59:28 -04:00
vmlinux.lds.S [S390] cleanup entry point definition 2012-01-18 18:03:41 +01:00
vtime.c [S390] irq: external interrupt code passing 2012-03-11 11:59:29 -04:00