From 7849f8d72a5952c09a1ec264c8ba0d13496c60b4 Mon Sep 17 00:00:00 2001 From: Pranith Kumar Date: Mon, 26 Feb 2018 03:21:35 -0500 Subject: [PATCH] target-arm: Generate fences in ARMv7 frontend Backports commit 61e4c432ab26526bab0f3ef746c1861415b6da29 from qemu --- qemu/target-arm/translate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/qemu/target-arm/translate.c b/qemu/target-arm/translate.c index eaac67f0..38bda859 100644 --- a/qemu/target-arm/translate.c +++ b/qemu/target-arm/translate.c @@ -8239,7 +8239,7 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn) // qq case 4: /* dsb */ case 5: /* dmb */ ARCH(7); - /* We don't emulate caches so these are a no-op. */ + tcg_gen_mb(tcg_ctx, TCG_MO_ALL | TCG_BAR_SC); return; case 6: /* isb */ /* We need to break the TB after this insn to execute @@ -10584,7 +10584,7 @@ static int disas_thumb2_insn(CPUARMState *env, DisasContext *s, uint16_t insn_hw break; case 4: /* dsb */ case 5: /* dmb */ - /* These execute as NOPs. */ + tcg_gen_mb(tcg_ctx, TCG_MO_ALL | TCG_BAR_SC); break; case 6: /* isb */ /* We need to break the TB after this insn