target/s390x: Use unwind data for helper_lctl

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>

diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c
index 68e3817..614cdb2 100644 (file)
--- a/target/s390x/mem_helper.c
+++ b/target/s390x/mem_helper.c
@@ -878,18 +878,19 @@ void HELPER(lctlg)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3)
 
 void HELPER(lctl)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3)
 {
+    uintptr_t ra = GETPC();
     S390CPU *cpu = s390_env_get_cpu(env);
     bool PERchanged = false;
-    int i;
     uint64_t src = a2;
-    uint32_t val;
+    uint32_t i;
 
     for (i = r1;; i = (i + 1) % 16) {
-        val = cpu_ldl_data(env, src);
+        uint32_t val = cpu_ldl_data_ra(env, src, ra);
         if ((uint32_t)env->cregs[i] != val && i >= 9 && i <= 11) {
             PERchanged = true;
         }
-        env->cregs[i] = (env->cregs[i] & 0xFFFFFFFF00000000ULL) | val;
+        env->cregs[i] = deposit64(env->cregs[i], 0, 32, val);
+        HELPER_LOG("load ctl %d from 0x%" PRIx64 " == 0x%x\n", i, src, val);
         src += sizeof(uint32_t);
 
         if (i == r3) {

diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index 2386c41..3a98c57 100644 (file)
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -2545,7 +2545,6 @@ static ExitStatus op_lctl(DisasContext *s, DisasOps *o)
     TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
     TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
     check_privileged(s);
-    potential_page_fault(s);
     gen_helper_lctl(cpu_env, r1, o->in2, r3);
     tcg_temp_free_i32(r1);
     tcg_temp_free_i32(r3);