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authorDavid Hildenbrand <david@redhat.com>2017-12-08 17:02:04 +0100
committerCornelia Huck <cohuck@redhat.com>2017-12-14 17:56:54 +0100
commitad0ccf1e6a45c22d6c0564f8365bf1df39c64c15 (patch)
treeec20d1f8922c9512f108301157f1cf3c8731376d /target
parentb9b0a4dc13cc6180c79056a7d15e828e93a24a41 (diff)
s390x/tcg: Implement SIGNAL ADAPTER instruction
KVM suppresses SIGA, setting cc=3. Let's do the same for TCG, so we're at least equal. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20171208160207.26494-12-david@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target')
-rw-r--r--target/s390x/insn-data.def1
-rw-r--r--target/s390x/translate.c8
2 files changed, 9 insertions, 0 deletions
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index 2e47a6b5bc..250741330d 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -1056,6 +1056,7 @@
C(0xb238, RSCH, S, Z, 0, 0, 0, 0, rsch, 0)
C(0xb237, SAL, S, Z, 0, 0, 0, 0, sal, 0)
C(0xb23c, SCHM, S, Z, 0, insn, 0, 0, schm, 0)
+ C(0xb274, SIGA, S, Z, 0, 0, 0, 0, siga, 0)
C(0xb23a, STCPS, S, Z, 0, 0, 0, 0, stcps, 0)
C(0xb233, SSCH, S, Z, 0, insn, 0, 0, ssch, 0)
C(0xb239, STCRW, S, Z, 0, insn, 0, 0, stcrw, 0)
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index 16febf4274..83e1df0f48 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -4132,6 +4132,14 @@ static ExitStatus op_schm(DisasContext *s, DisasOps *o)
return NO_EXIT;
}
+static ExitStatus op_siga(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ /* From KVM code: Not provided, set CC = 3 for subchannel not operational */
+ gen_op_movi_cc(s, 3);
+ return NO_EXIT;
+}
+
static ExitStatus op_stcps(DisasContext *s, DisasOps *o)
{
check_privileged(s);