[PATCH 1/2] target/s390x: Split out helper_per_store_real

[Richard Henderson <richard.henderson@linaro.org>]

Split the PER handling for store-to-real-address into its
own helper function, conditionally called when PER is
enabled, just as we do for per_branch and per_ifetch.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/s390x/helper.h      |  1 +
 target/s390x/mem_helper.c  | 16 ----------------
 target/s390x/misc_helper.c | 10 ++++++++++
 target/s390x/translate.c   |  8 ++++++++
 4 files changed, 19 insertions(+), 16 deletions(-)

diff --git a/target/s390x/helper.h b/target/s390x/helper.h
index 56e8149866..f5b4bb6a31 100644
--- a/target/s390x/helper.h
+++ b/target/s390x/helper.h
@@ -331,6 +331,7 @@ DEF_HELPER_FLAGS_3(sturg, TCG_CALL_NO_WG, void, env, i64, i64)
 DEF_HELPER_1(per_check_exception, void, env)
 DEF_HELPER_FLAGS_3(per_branch, TCG_CALL_NO_RWG, void, env, i64, i64)
 DEF_HELPER_FLAGS_2(per_ifetch, TCG_CALL_NO_RWG, void, env, i64)
+DEF_HELPER_FLAGS_1(per_store_real, TCG_CALL_NO_RWG, void, env)
 DEF_HELPER_FLAGS_1(stfl, TCG_CALL_NO_RWG, void, env)
 
 DEF_HELPER_2(xsch, void, env, i64)
diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c
index 2325767f17..b1b3f406c9 100644
--- a/target/s390x/mem_helper.c
+++ b/target/s390x/mem_helper.c
@@ -2344,27 +2344,11 @@ uint64_t HELPER(lurag)(CPUS390XState *env, uint64_t addr)
 void HELPER(stura)(CPUS390XState *env, uint64_t addr, uint64_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) &&
-        (env->cregs[9] & PER_CR9_EVENT_STORE_REAL)) {
-        /* PSW is saved just before calling the helper.  */
-        env->per_address = env->psw.addr;
-        env->per_perc_atmid = PER_CODE_EVENT_STORE_REAL | get_per_atmid(env);
-    }
 }
 
 void HELPER(sturg)(CPUS390XState *env, uint64_t addr, uint64_t 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) &&
-        (env->cregs[9] & PER_CR9_EVENT_STORE_REAL)) {
-        /* PSW is saved just before calling the helper.  */
-        env->per_address = env->psw.addr;
-        env->per_perc_atmid = PER_CODE_EVENT_STORE_REAL | get_per_atmid(env);
-    }
 }
 
 /* load real address */
diff --git a/target/s390x/misc_helper.c b/target/s390x/misc_helper.c
index bfb457fb63..58dbc023eb 100644
--- a/target/s390x/misc_helper.c
+++ b/target/s390x/misc_helper.c
@@ -620,6 +620,16 @@ void HELPER(per_ifetch)(CPUS390XState *env, uint64_t addr)
         }
     }
 }
+
+void HELPER(per_store_real)(CPUS390XState *env)
+{
+    if ((env->cregs[9] & PER_CR9_EVENT_STORE) &&
+        (env->cregs[9] & PER_CR9_EVENT_STORE_REAL)) {
+        /* PSW is saved just before calling the helper.  */
+        env->per_address = env->psw.addr;
+        env->per_perc_atmid = PER_CODE_EVENT_STORE_REAL | get_per_atmid(env);
+    }
+}
 #endif
 
 static uint8_t stfl_bytes[2048];
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index 151dfa91fb..ef751fefa4 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -4507,12 +4507,20 @@ static DisasJumpType op_stnosm(DisasContext *s, DisasOps *o)
 static DisasJumpType op_stura(DisasContext *s, DisasOps *o)
 {
     gen_helper_stura(cpu_env, o->in2, o->in1);
+    if (s->base.tb->flags & FLAG_MASK_PER) {
+        update_psw_addr(s);
+        gen_helper_per_store_real(cpu_env);
+    }
     return DISAS_NEXT;
 }
 
 static DisasJumpType op_sturg(DisasContext *s, DisasOps *o)
 {
     gen_helper_sturg(cpu_env, o->in2, o->in1);
+    if (s->base.tb->flags & FLAG_MASK_PER) {
+        update_psw_addr(s);
+        gen_helper_per_store_real(cpu_env);
+    }
     return DISAS_NEXT;
 }
 #endif
-- 
2.20.1