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[108.232.152.155]) by smtp.gmail.com with ESMTPSA id c62sm17150085ywf.12.2016.05.31.11.40.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 31 May 2016 11:40:38 -0700 (PDT) From: Pranith Kumar To: Peter Maydell , qemu-arm@nongnu.org (open list:ARM), qemu-devel@nongnu.org (open list:All patches CC here) Date: Tue, 31 May 2016 14:39:26 -0400 Message-Id: <20160531183928.29406-12-bobby.prani@gmail.com> X-Mailer: git-send-email 2.8.3 In-Reply-To: <20160531183928.29406-1-bobby.prani@gmail.com> References: <20160531183928.29406-1-bobby.prani@gmail.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2607:f8b0:4002:c05::243 Subject: [Qemu-devel] [RFC v2 PATCH 11/13] target-arm: Generate fences in ARMv7 frontend X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: serge.fdrv@linaro.org, alex.bennee@linaro.org, qemu-devel@nongnu.org, rth@twiddle.net Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Pranith Kumar Signed-off-by: Richard Henderson --- target-arm/translate.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/target-arm/translate.c b/target-arm/translate.c index c946c0e..e1b16c0 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -7980,9 +7980,11 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn) gen_clrex(s); return; case 4: /* dsb */ + ARCH(7); + return; case 5: /* dmb */ ARCH(7); - /* We don't emulate caches so these are a no-op. */ + tcg_gen_mb(TCG_MB_FULL); return; case 6: /* isb */ /* We need to break the TB after this insn to execute @@ -10330,8 +10332,9 @@ static int disas_thumb2_insn(CPUARMState *env, DisasContext *s, uint16_t insn_hw gen_clrex(s); break; case 4: /* dsb */ + break; case 5: /* dmb */ - /* These execute as NOPs. */ + tcg_gen_mb(TCG_MB_FULL); break; case 6: /* isb */ /* We need to break the TB after this insn