[PULL 10/22] target/s390x: Raise exception from per_store_real

Thomas Huth posted 22 patches 5 months, 4 weeks ago
Maintainers: Halil Pasic <pasic@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, David Hildenbrand <david@redhat.com>, Eric Farman <farman@linux.ibm.com>, Thomas Huth <thuth@redhat.com>, Markus Armbruster <armbru@redhat.com>, Michael Roth <michael.roth@amd.com>, Alexander Bulekov <alxndr@bu.edu>, Paolo Bonzini <pbonzini@redhat.com>, Bandan Das <bsd@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Darren Kenny <darren.kenny@oracle.com>, Qiuhao Li <Qiuhao.Li@outlook.com>, "Michael S. Tsirkin" <mst@redhat.com>, Cornelia Huck <cohuck@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, Ilya Leoshkevich <iii@linux.ibm.com>, Laurent Vivier <lvivier@redhat.com>
[PULL 10/22] target/s390x: Raise exception from per_store_real
Posted by Thomas Huth 5 months, 4 weeks ago
From: Richard Henderson <richard.henderson@linaro.org>

At this point the instruction is complete and there's nothing
left to do but raise the exception.  With this change we need
not make two helper calls for this event.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240502054417.234340-11-richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 target/s390x/helper.h          | 2 +-
 target/s390x/tcg/misc_helper.c | 4 +++-
 target/s390x/tcg/translate.c   | 7 ++++---
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/target/s390x/helper.h b/target/s390x/helper.h
index 061b379065..5611155ba1 100644
--- a/target/s390x/helper.h
+++ b/target/s390x/helper.h
@@ -362,7 +362,7 @@ DEF_HELPER_3(lra, i64, env, i64, i64)
 DEF_HELPER_FLAGS_3(per_check_exception, TCG_CALL_NO_WG, void, env, i64, i32)
 DEF_HELPER_FLAGS_3(per_branch, TCG_CALL_NO_WG, void, env, i64, i32)
 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_2(per_store_real, TCG_CALL_NO_WG, noreturn, env, i32)
 DEF_HELPER_FLAGS_1(stfl, TCG_CALL_NO_RWG, void, env)
 
 DEF_HELPER_2(xsch, void, env, i64)
diff --git a/target/s390x/tcg/misc_helper.c b/target/s390x/tcg/misc_helper.c
index 974d14703c..43cacc448f 100644
--- a/target/s390x/tcg/misc_helper.c
+++ b/target/s390x/tcg/misc_helper.c
@@ -660,11 +660,13 @@ void HELPER(per_ifetch)(CPUS390XState *env, uint64_t addr)
     }
 }
 
-void HELPER(per_store_real)(CPUS390XState *env)
+void HELPER(per_store_real)(CPUS390XState *env, uint32_t ilen)
 {
     /* PSW is saved just before calling the helper.  */
     env->per_address = env->psw.addr;
+    env->int_pgm_ilen = ilen;
     env->per_perc_atmid = PER_CODE_EVENT_STORE_REAL | get_per_atmid(env);
+    per_raise_exception_log(env);
 }
 #endif
 
diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c
index de029185e0..5bb15a46e0 100644
--- a/target/s390x/tcg/translate.c
+++ b/target/s390x/tcg/translate.c
@@ -4342,8 +4342,10 @@ static DisasJumpType op_stura(DisasContext *s, DisasOps *o)
     tcg_gen_qemu_st_tl(o->in1, o->in2, MMU_REAL_IDX, s->insn->data);
 
     if (s->base.tb->flags & FLAG_MASK_PER_STORE_REAL) {
+        update_cc_op(s);
         update_psw_addr(s);
-        gen_helper_per_store_real(tcg_env);
+        gen_helper_per_store_real(tcg_env, tcg_constant_i32(s->ilen));
+        return DISAS_NORETURN;
     }
     return DISAS_NEXT;
 }
@@ -6355,8 +6357,7 @@ static DisasJumpType translate_one(CPUS390XState *env, DisasContext *s)
     }
 
 #ifndef CONFIG_USER_ONLY
-    if (s->base.tb->flags & (FLAG_MASK_PER_STORE_REAL |
-                             FLAG_MASK_PER_IFETCH)) {
+    if (s->base.tb->flags & FLAG_MASK_PER_IFETCH) {
         TCGv_i64 next_pc = psw_addr;
 
         if (ret == DISAS_NEXT || ret == DISAS_TOO_MANY) {
-- 
2.45.1