target-s390: Convert PTLB

Signed-off-by: Richard Henderson <rth@twiddle.net>

target-s390x/insn-data.def

@@ -629,6 +629,8 @@
     C(0xda00, MVCP,    SS_d,  Z,   la1, a2, 0, 0, mvcp, 0)
 /* MOVE TO SECONDARY */
     C(0xdb00, MVCS,    SS_d,  Z,   la1, a2, 0, 0, mvcs, 0)
+/* PURGE TLB */
+    C(0xb20d, PTLB,    S,     Z,   0, 0, 0, 0, ptlb, 0)
 /* SET ADDRESSING MODE */
     /* We only do 64-bit, so accept this as a no-op.
        Let SAM24 and SAM31 signal illegal instruction.  */

target-s390x/translate.c

@@ -1033,11 +1033,6 @@ static void disas_b2(CPUS390XState *env, DisasContext *s, int op,
     LOG_DISAS("disas_b2: op 0x%x r1 %d r2 %d\n", op, r1, r2);
 
     switch (op) {
-    case 0x0d: /* PTLB                [S] */
-        /* Purge TLB */
-        check_privileged(s);
-        gen_helper_ptlb(cpu_env);
-        break;
     case 0x10: /* SPX      D2(B2)     [S] */
         /* Set Prefix Register */
         check_privileged(s);
@@ -2725,6 +2720,15 @@ static ExitStatus op_ori(DisasContext *s, DisasOps *o)
     return NO_EXIT;
 }
 
+#ifndef CONFIG_USER_ONLY
+static ExitStatus op_ptlb(DisasContext *s, DisasOps *o)
+{
+    check_privileged(s);
+    gen_helper_ptlb(cpu_env);
+    return NO_EXIT;
+}
+#endif
+
 static ExitStatus op_rev16(DisasContext *s, DisasOps *o)
 {
     tcg_gen_bswap16_i64(o->out, o->in2);