diff mbox series

[PULL,35/46] s390x/tcg: indicate value of TODPR in STCKE

Message ID 20171214171004.25058-36-cohuck@redhat.com
State New
Headers show
Series [PULL,01/46] s390x/migration: use zero flag parameter | expand

Commit Message

Cornelia Huck Dec. 14, 2017, 5:09 p.m. UTC 
From: David Hildenbrand <david@redhat.com>

We were not yet using the value of the TOD Programmable Register.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20171208160207.26494-5-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
---
 target/s390x/translate.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index d13f531c5b..38e1770e5e 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -3897,7 +3897,10 @@  static ExitStatus op_stcke(DisasContext *s, DisasOps *o)
 {
     TCGv_i64 c1 = tcg_temp_new_i64();
     TCGv_i64 c2 = tcg_temp_new_i64();
+    TCGv_i64 todpr = tcg_temp_new_i64();
     gen_helper_stck(c1, cpu_env);
+    /* 16 bit value store in an uint32_t (only valid bits set) */
+    tcg_gen_ld32u_i64(todpr, cpu_env, offsetof(CPUS390XState, todpr));
     /* Shift the 64-bit value into its place as a zero-extended
        104-bit value.  Note that "bit positions 64-103 are always
        non-zero so that they compare differently to STCK"; we set
@@ -3905,11 +3908,13 @@  static ExitStatus op_stcke(DisasContext *s, DisasOps *o)
     tcg_gen_shli_i64(c2, c1, 56);
     tcg_gen_shri_i64(c1, c1, 8);
     tcg_gen_ori_i64(c2, c2, 0x10000);
+    tcg_gen_or_i64(c2, c2, todpr);
     tcg_gen_qemu_st64(c1, o->in2, get_mem_index(s));
     tcg_gen_addi_i64(o->in2, o->in2, 8);
     tcg_gen_qemu_st64(c2, o->in2, get_mem_index(s));
     tcg_temp_free_i64(c1);
     tcg_temp_free_i64(c2);
+    tcg_temp_free_i64(todpr);
     /* ??? We don't implement clock states.  */
     gen_op_movi_cc(s, 0);
     return NO_EXIT;