1 files changed, 21 insertions, 0 deletions
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index a777343821..90dc1740e7 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -3302,6 +3302,27 @@ static DisasJumpType op_lcbb(DisasContext *s, DisasOps *o)
     return DISAS_NEXT;
 }
 
+static DisasJumpType op_mc(DisasContext *s, DisasOps *o)
+{
+#if !defined(CONFIG_USER_ONLY)
+    TCGv_i32 i2;
+#endif
+    const uint16_t monitor_class = get_field(s, i2);
+
+    if (monitor_class & 0xff00) {
+        gen_program_exception(s, PGM_SPECIFICATION);
+        return DISAS_NORETURN;
+    }
+
+#if !defined(CONFIG_USER_ONLY)
+    i2 = tcg_const_i32(monitor_class);
+    gen_helper_monitor_call(cpu_env, o->addr1, i2);
+    tcg_temp_free_i32(i2);
+#endif
+    /* Defaults to a NOP. */
+    return DISAS_NEXT;
+}
+
 static DisasJumpType op_mov2(DisasContext *s, DisasOps *o)
 {
     o->out = o->in2;