s390/dump: cleanup CPU save area handling

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Introduce save_area_alloc(), save_area_boot_cpu(), save_area_add_regs()
and save_area_add_vxrs to deal with storing the CPU state in case of a
system dump. Remove struct save_area and save_area_ext, and create a new
struct save_area as a local definition to arch/s390/kernel/crash_dump.c.
Copy each individual field from the hardware status area to the save area,
storing the minimum of required data.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Martin Schwidefsky 2015-10-29 10:59:15 +01:00

parent 1a36a39e22

commit 1a2c5840ac

5 changed files with 145 additions and 198 deletions

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11

arch/s390/include/asm/ipl.h

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21

arch/s390/include/asm/lowcore.h

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267

arch/s390/kernel/crash_dump.c

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37

arch/s390/kernel/smp.c

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11

drivers/s390/char/zcore.c

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