diff options
| -rw-r--r-- | target/i386/tcg/decode-new.c.inc | 9 | ||||
| -rw-r--r-- | target/i386/tcg/decode-new.h | 8 |
2 files changed, 13 insertions, 4 deletions
diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.c.inc index b845a1b7b4..d0384a623b 100644 --- a/target/i386/tcg/decode-new.c.inc +++ b/target/i386/tcg/decode-new.c.inc @@ -2566,8 +2566,13 @@ static void disas_insn(DisasContext *s, CPUState *cpu) goto illegal_op; } } - if (decode.e.check & X86_CHECK_prot) { - if (!PE(s) || VM86(s)) { + if (decode.e.check & X86_CHECK_prot_or_vm86) { + if (!PE(s)) { + goto illegal_op; + } + } + if (decode.e.check & X86_CHECK_no_vm86) { + if (VM86(s)) { goto illegal_op; } } diff --git a/target/i386/tcg/decode-new.h b/target/i386/tcg/decode-new.h index bcac844ec4..1af28efaf5 100644 --- a/target/i386/tcg/decode-new.h +++ b/target/i386/tcg/decode-new.h @@ -150,8 +150,8 @@ typedef enum X86InsnCheck { X86_CHECK_i64 = 1, X86_CHECK_o64 = 2, - /* Fault outside protected mode */ - X86_CHECK_prot = 4, + /* Fault in vm86 mode */ + X86_CHECK_no_vm86 = 4, /* Privileged instruction checks */ X86_CHECK_cpl0 = 8, @@ -167,6 +167,10 @@ typedef enum X86InsnCheck { /* Fault if VEX.W=0 */ X86_CHECK_W1 = 256, + + /* Fault outside protected mode, possibly including vm86 mode */ + X86_CHECK_prot_or_vm86 = 512, + X86_CHECK_prot = X86_CHECK_prot_or_vm86 | X86_CHECK_no_vm86, } X86InsnCheck; typedef enum X86InsnSpecial { |