diff options
| author | Thomas Huth <thuth@redhat.com> | 2017-05-18 19:26:40 +0200 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2017-06-06 14:34:31 -0700 |
| commit | f79f1ca4a20d4070179903bbaafc13f5f90b7873 (patch) | |
| tree | 5921a73bc3333cde97f964bda0daab4999789405 /target/s390x/translate.c | |
| parent | 65dfad62a176f5265f801683be64149c5ad55f7d (diff) | |
target/s390x: Add support for the TEST BLOCK instruction
TEST BLOCK was likely once used to execute basic memory
tests, but nowadays it's just a (slow) way to clear a page.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1495128400-23759-1-git-send-email-thuth@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target/s390x/translate.c')
| -rw-r--r-- | target/s390x/translate.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/target/s390x/translate.c b/target/s390x/translate.c index 628fb8685d..837d90cd07 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -4062,6 +4062,16 @@ static ExitStatus op_tcxb(DisasContext *s, DisasOps *o) } #ifndef CONFIG_USER_ONLY + +static ExitStatus op_testblock(DisasContext *s, DisasOps *o) +{ + check_privileged(s); + potential_page_fault(s); + gen_helper_testblock(cc_op, cpu_env, o->in2); + set_cc_static(s); + return NO_EXIT; +} + static ExitStatus op_tprot(DisasContext *s, DisasOps *o) { potential_page_fault(s); @@ -4069,6 +4079,7 @@ static ExitStatus op_tprot(DisasContext *s, DisasOps *o) set_cc_static(s); return NO_EXIT; } + #endif static ExitStatus op_tr(DisasContext *s, DisasOps *o) |