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| author |   Heiko Carstens <hca@linux.ibm.com> | 2024-07-31 15:25:59 +0200 |
|---|---|---|
| committer |   Vasily Gorbik <gor@linux.ibm.com> | 2024-08-07 20:52:53 +0200 |
| commit | f2bb5b97b51ce5425e8f59f899643ce4eadba667 (patch) | |
| tree | c48abaad344b45d26fc403a1c2d7444124f23e2f /arch/s390/kernel/entry.S | |
| parent | s390/mm/ptdump: Generate address marker array dynamically (diff) | |
| download | wireguard-linux-f2bb5b97b51ce5425e8f59f899643ce4eadba667.tar.xz wireguard-linux-f2bb5b97b51ce5425e8f59f899643ce4eadba667.zip | |
s390/entry: Move early program check handler to entry.S
Have all program check handlers in one file to make future changes easy.
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/entry.S')
| -rw-r--r-- | arch/s390/kernel/entry.S | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 749410cfdbc0..b01f4ac43f72 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -599,6 +599,21 @@ SYM_CODE_START(restart_int_handler) 3: j 3b SYM_CODE_END(restart_int_handler) +SYM_CODE_START(early_pgm_check_handler) + stmg %r8,%r15,__LC_SAVE_AREA_SYNC + aghi %r15,-(STACK_FRAME_OVERHEAD+__PT_SIZE) + la %r11,STACK_FRAME_OVERHEAD(%r15) + xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) + stmg %r0,%r7,__PT_R0(%r11) + mvc __PT_PSW(16,%r11),__LC_PGM_OLD_PSW + mvc __PT_R8(64,%r11),__LC_SAVE_AREA_SYNC + lgr %r2,%r11 + brasl %r14,__do_early_pgm_check + mvc __LC_RETURN_PSW(16),STACK_FRAME_OVERHEAD+__PT_PSW(%r15) + lmg %r0,%r15,STACK_FRAME_OVERHEAD+__PT_R0(%r15) + lpswe __LC_RETURN_PSW +SYM_CODE_END(early_pgm_check_handler) + .section .kprobes.text, "ax" #if defined(CONFIG_CHECK_STACK) || defined(CONFIG_VMAP_STACK) |