diff options
| -rw-r--r-- | target-i386/translate.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c index 2407735281..cec9a425ac 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -3732,6 +3732,9 @@ static uint8_t *disas_insn(DisasContext *s, uint8_t *pc_start) /************************/ /* misc */ case 0x90: /* nop */ + /* XXX: correct lock test for all insn */ + if (prefixes & PREFIX_LOCK) + goto illegal_op; break; case 0x9b: /* fwait */ break; @@ -4137,6 +4140,8 @@ static uint8_t *disas_insn(DisasContext *s, uint8_t *pc_start) gen_op_unlock(); return s->pc; illegal_op: + if (s->prefix & PREFIX_LOCK) + gen_op_unlock(); /* XXX: ensure that no lock was generated */ gen_exception(s, EXCP06_ILLOP, pc_start - s->cs_base); return s->pc; |