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| author | Alexander Gordeev <agordeev@linux.ibm.com> | 2023-04-18 17:40:37 +0200 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2023-07-03 11:19:40 +0200 |
| commit | edbe28989847308406101256e10fdfb567ca9eb1 (patch) | |
| tree | aa81b965e5aa5e889e297f7748338987c550d03c /arch/s390/kernel/head64.S | |
| parent | s390/mm: fence off VM macros from asm and linker (diff) | |
| download | linux-edbe28989847308406101256e10fdfb567ca9eb1.tar.xz linux-edbe28989847308406101256e10fdfb567ca9eb1.zip | |
s390/entry: rework entering DAT-on mode on CPU restart
Instead of enforcing PSW_MASK_DAT bit on previously stored
in lowcore restart_psw.mask use the PSW_KERNEL_BITS mask
(which contains PSW_MASK_DAT) directly.
As result, the PSW mask stored in lowcore is only used to
enter the CPU restart routine, while PSW_KERNEL_BITS is
used to enter the kernel code - similarily to commit
64ea2977add2 ("s390/mm: start kernel with DAT enabled").
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/head64.S')
0 files changed, 0 insertions, 0 deletions