s390x/tcg: make stora(g) use the new _real mmu

As we properly handle the return address now, we can drop
potential_page_fault().
Signed-off-by: NDavid Hildenbrand <david@redhat.com>
Message-Id: <20170926183318.12995-5-david@redhat.com>
Reviewed-by: NRichard Henderson <richard.henderson@linaro.org>
Reviewed-by: NThomas Huth <thuth@redhat.com>
Signed-off-by: NCornelia Huck <cohuck@redhat.com>

target/s390x/mem_helper.c

@@ -1970,9 +1970,7 @@ uint64_t HELPER(lurag)(CPUS390XState *env, uint64_t addr)
 /* store using real address */
 void HELPER(stura)(CPUS390XState *env, uint64_t addr, uint64_t v1)
 {
-    CPUState *cs = CPU(s390_env_get_cpu(env));
-
-    stl_phys(cs->as, wrap_address(env, addr), (uint32_t)v1);
+    cpu_stl_real_ra(env, wrap_address(env, addr), (uint32_t)v1, GETPC());
 
     if ((env->psw.mask & PSW_MASK_PER) &&
         (env->cregs[9] & PER_CR9_EVENT_STORE) &&
@@ -1985,9 +1983,7 @@ void HELPER(stura)(CPUS390XState *env, uint64_t addr, uint64_t v1)
 
 void HELPER(sturg)(CPUS390XState *env, uint64_t addr, uint64_t v1)
 {
-    CPUState *cs = CPU(s390_env_get_cpu(env));
-
-    stq_phys(cs->as, wrap_address(env, addr), v1);
+    cpu_stq_real_ra(env, wrap_address(env, addr), v1, GETPC());
 
     if ((env->psw.mask & PSW_MASK_PER) &&
         (env->cregs[9] & PER_CR9_EVENT_STORE) &&

target/s390x/translate.c

@@ -4126,7 +4126,6 @@ static ExitStatus op_stnosm(DisasContext *s, DisasOps *o)
 static ExitStatus op_stura(DisasContext *s, DisasOps *o)
 {
     check_privileged(s);
-    potential_page_fault(s);
     gen_helper_stura(cpu_env, o->in2, o->in1);
     return NO_EXIT;
 }
@@ -4134,7 +4133,6 @@ static ExitStatus op_stura(DisasContext *s, DisasOps *o)
 static ExitStatus op_sturg(DisasContext *s, DisasOps *o)
 {
     check_privileged(s);
-    potential_page_fault(s);
     gen_helper_sturg(cpu_env, o->in2, o->in1);
     return NO_EXIT;
 }