diff options
Diffstat (limited to 'target-i386/translate.c')
| -rw-r--r-- | target-i386/translate.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c index c6d9be6043..fbe4f80aa6 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -7731,16 +7731,28 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, goto illegal_op; } break; - case 7: /* sfence / clflush */ + case 7: /* sfence / clflush / clflushopt / pcommit */ if ((modrm & 0xc7) == 0xc0) { - /* sfence */ - /* XXX: also check for cpuid_ext2_features & CPUID_EXT2_EMMX */ - if (!(s->cpuid_features & CPUID_SSE)) - goto illegal_op; + if (s->prefix & PREFIX_DATA) { + /* pcommit */ + if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_PCOMMIT)) + goto illegal_op; + } else { + /* sfence */ + /* XXX: also check for cpuid_ext2_features & CPUID_EXT2_EMMX */ + if (!(s->cpuid_features & CPUID_SSE)) + goto illegal_op; + } } else { - /* clflush */ - if (!(s->cpuid_features & CPUID_CLFLUSH)) - goto illegal_op; + if (s->prefix & PREFIX_DATA) { + /* clflushopt */ + if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_CLFLUSHOPT)) + goto illegal_op; + } else { + /* clflush */ + if (!(s->cpuid_features & CPUID_CLFLUSH)) + goto illegal_op; + } gen_lea_modrm(env, s, modrm); } break; |