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author | Alexander Gordeev <agordeev@linux.ibm.com> | 2022-09-02 11:05:08 +0300 |
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committer | Vasily Gorbik <gor@linux.ibm.com> | 2022-09-14 17:46:00 +0300 |
commit | 14a3a2624285d36624966935ec12f228d876c028 (patch) | |
tree | 0657050efce003fc42e18d228459e702261b0bb1 /arch/s390/include/asm/pgtable.h | |
parent | 2187582c361fcd33a6ab5e9e6fef5b774c3b8cda (diff) | |
download | linux-14a3a2624285d36624966935ec12f228d876c028.tar.xz |
s390/dump: save IPL CPU registers once DAT is available
Function smp_save_dump_cpus() collects CPU state of a crashed
system for secondary CPUs and for the IPL CPU very differently.
The Signal Processor stop-and-store-status orders are used for
the former while Hardware System Area requests and memcpy_real()
routine are called for the latter. In addition a system reset is
triggered, which pins smp_save_dump_cpus() function call before
CPU and device initialization.
Move the collection of IPL CPU state to a later stage when DAT
becomes available. That is needed to allow a follow-up rework of
memcpy_real() routine.
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/pgtable.h')
0 files changed, 0 insertions, 0 deletions