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| author | Heiko Carstens <hca@linux.ibm.com> | 2021-04-09 10:34:43 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2021-04-12 12:46:42 +0200 |
| commit | 17a363dcd2f7455d8661a7b2f9ba7cfb85bbc7e4 (patch) | |
| tree | 15b3c8c49de3ed353e3b7f5a6ff41ee50fd725b1 /arch/s390/mm | |
| parent | 61311e32892b008886478bdba4ce2a34f4d938f8 (diff) | |
| download | linux-17a363dcd2f7455d8661a7b2f9ba7cfb85bbc7e4.tar.bz2 | |
s390/traps,mm: add conditional trap handlers
Add conditional trap handlers similar to conditional system calls
(COND_SYSCALL), to reduce the number of ifdefs.
Trap handlers which may or may not exist depending on config options
are supposed to have a COND_TRAP entry, which redirects to
default_trap_handler() for non-existent trap handlers during link
time.
This allows to get rid of the secure execution trap handlers for the
!PGSTE case.
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/mm')
| -rw-r--r-- | arch/s390/mm/fault.c | 18 |
1 files changed, 2 insertions, 16 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index e30c7c781172..826d01777361 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -783,6 +783,7 @@ early_initcall(pfault_irq_init); #endif /* CONFIG_PFAULT */ #if IS_ENABLED(CONFIG_PGSTE) + void do_secure_storage_access(struct pt_regs *regs) { unsigned long addr = regs->int_parm_long & __FAIL_ADDR_MASK; @@ -859,19 +860,4 @@ void do_secure_storage_violation(struct pt_regs *regs) send_sig(SIGSEGV, current, 0); } -#else -void do_secure_storage_access(struct pt_regs *regs) -{ - default_trap_handler(regs); -} - -void do_non_secure_storage_access(struct pt_regs *regs) -{ - default_trap_handler(regs); -} - -void do_secure_storage_violation(struct pt_regs *regs) -{ - default_trap_handler(regs); -} -#endif +#endif /* CONFIG_PGSTE */ |