[Qemu-devel] [RFC v3 PATCH 14/14] target-i386: Generate fences for x86

[Pranith Kumar]

Signed-off-by: Pranith Kumar <address@hidden>
---
 target-i386/translate.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/target-i386/translate.c b/target-i386/translate.c
index bf33e6b..32b0f5c 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -8012,13 +8012,17 @@ static target_ulong disas_insn(CPUX86State *env, 
DisasContext *s,
                 || (prefixes & PREFIX_LOCK)) {
                 goto illegal_op;
             }
+            tcg_gen_mb(TCG_MO_ST_ST | TCG_BAR_SC);
             break;
         case 0xe8 ... 0xef: /* lfence */
+            tcg_gen_mb(TCG_MO_LD_LD | TCG_BAR_SC);
+            break;
         case 0xf0 ... 0xf7: /* mfence */
             if (!(s->cpuid_features & CPUID_SSE2)
                 || (prefixes & PREFIX_LOCK)) {
                 goto illegal_op;
             }
+            tcg_gen_mb(TCG_MO_ALL | TCG_BAR_SC);
             break;
 
         default:
-- 
2.9.0