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[4/5] target-s390x: implement STCKC helper

Message ID 1431985349-11226-5-git-send-email-aurelien@aurel32.net
State New
Headers show

Commit Message

Aurelien Jarno May 18, 2015, 9:42 p.m. UTC 
The STCKC instruction just returns the last written clock comparator
value and KVM already provides the corresponding variable.

Cc: Alexander Graf <agraf@suse.de>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
 target-s390x/misc_helper.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
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Patch

diff --git a/target-s390x/misc_helper.c b/target-s390x/misc_helper.c
index fa105fa..57aee95 100644
--- a/target-s390x/misc_helper.c
+++ b/target-s390x/misc_helper.c
@@ -286,6 +286,8 @@  void HELPER(sckc)(CPUS390XState *env, uint64_t time)
         return;
     }
 
+    env->ckc = time;
+
     /* difference between origins */
     time -= env->tod_offset;
 
@@ -298,8 +300,7 @@  void HELPER(sckc)(CPUS390XState *env, uint64_t time)
 /* Store Clock Comparator */
 uint64_t HELPER(stckc)(CPUS390XState *env)
 {
-    /* XXX implement */
-    return 0;
+    return env->ckc;
 }
 
 /* Set CPU Timer */