| Message ID | 20170604202034.16615-4-aurelien@aurel32.net (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index a8988e0293..80caab9c9d 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -1262,6 +1262,8 @@ void HELPER(cdsg)(CPUS390XState *env, uint64_t addr, } else { uint64_t oldh, oldl; + check_alignment(env, addr, 16, ra); + oldh = cpu_ldq_data_ra(env, addr + 0, ra); oldl = cpu_ldq_data_ra(env, addr + 8, ra);
The CDSG instruction requires a 16-byte alignement, as expressed in the MO_ALIGN_16 passed to helper_atomic_cmpxchgo_be_mmu. In the non parallel case, use check_alignment to enforce this. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> --- target/s390x/mem_helper.c | 2 ++ 1 file changed, 2 insertions(+)