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| author | Pranith Kumar <bobby.prani@gmail.com> | 2016-07-14 16:20:26 -0400 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-09-16 08:12:12 -0700 |
| commit | cc19e497a047193db5083425957d7292c8dd3226 (patch) | |
| tree | 234c7c1c888a156807742dba58c163c92bb6ffc1 | |
| parent | ce1bd93f94e8d4b7117744e49652d2f907bed99f (diff) | |
| download | qemu-cc19e497a047193db5083425957d7292c8dd3226.tar.gz | |
target-i386: Generate fences for x86
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Message-Id: <20160714202026.9727-15-bobby.prani@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
| -rw-r--r-- | target-i386/translate.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c index fa2ac48173..9447557911 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -8012,13 +8012,21 @@ 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 */ + if (!(s->cpuid_features & CPUID_SSE) + || (prefixes & PREFIX_LOCK)) { + goto illegal_op; + } + 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: |