From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45529) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dDbsX-00027A-Ix for qemu-devel@nongnu.org; Wed, 24 May 2017 15:23:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dDbsW-0001kt-QA for qemu-devel@nongnu.org; Wed, 24 May 2017 15:23:29 -0400 Received: from mail-qk0-x241.google.com ([2607:f8b0:400d:c09::241]:35871) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dDbsW-0001k8-Ls for qemu-devel@nongnu.org; Wed, 24 May 2017 15:23:28 -0400 Received: by mail-qk0-x241.google.com with SMTP id y128so27718268qka.3 for ; Wed, 24 May 2017 12:23:28 -0700 (PDT) Sender: Richard Henderson From: Richard Henderson Date: Wed, 24 May 2017 12:22:41 -0700 Message-Id: <20170524192246.15905-29-rth@twiddle.net> In-Reply-To: <20170524192246.15905-1-rth@twiddle.net> References: <20170524192246.15905-1-rth@twiddle.net> Subject: [Qemu-devel] [PATCH v2 28/33] target/s390x: Use unwind data for helper_lra List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: thuth@redhat.com, aurelien@aurel32.net Fix saving exception_index around mmu_translate; eliminate a dead store. Signed-off-by: Richard Henderson --- target/s390x/mem_helper.c | 6 +++--- target/s390x/translate.c | 1 - 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index a8c85c9..17d8257 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -1208,17 +1208,17 @@ uint64_t HELPER(lra)(CPUS390XState *env, uint64_t addr) { CPUState *cs = CPU(s390_env_get_cpu(env)); uint32_t cc = 0; - int old_exc = cs->exception_index; uint64_t asc = env->psw.mask & PSW_MASK_ASC; uint64_t ret; - int flags; + int old_exc, flags; /* XXX incomplete - has more corner cases */ if (!(env->psw.mask & PSW_MASK_64) && (addr >> 32)) { + cpu_restore_state(cs, GETPC()); program_interrupt(env, PGM_SPECIAL_OP, 2); } - cs->exception_index = old_exc; + old_exc = cs->exception_index; if (mmu_translate(env, addr, 0, asc, &ret, &flags, true)) { cc = 3; } diff --git a/target/s390x/translate.c b/target/s390x/translate.c index 7b9c111..141be22 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -2560,7 +2560,6 @@ static ExitStatus op_lctlg(DisasContext *s, DisasOps *o) static ExitStatus op_lra(DisasContext *s, DisasOps *o) { check_privileged(s); - potential_page_fault(s); gen_helper_lra(o->out, cpu_env, o->in2); set_cc_static(s); return NO_EXIT; -- 2.9.4