diff options
| author | Avi Kivity <avi.kivity@gmail.com> | 2013-02-09 11:31:51 +0200 |
|---|---|---|
| committer | Gleb Natapov <gleb@redhat.com> | 2013-05-21 15:43:24 +0300 |
| commit | e47a5f5fb715b90b40747e9e235de557c6abd56c (patch) | |
| tree | 92283dc4e419898b3cfdcd6597a6e05065c24e26 | |
| parent | 203831e8e4bd9ab3b2f9f86c73c74fe912e06ac5 (diff) | |
KVM: x86 emulator: convert XADD to fastop
Signed-off-by: Avi Kivity <avi.kivity@gmail.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
| -rw-r--r-- | arch/x86/kvm/emulate.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index d71aac0bf32..9ebe95c5836 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -853,6 +853,8 @@ FASTOP2W(bts); FASTOP2W(btr); FASTOP2W(btc); +FASTOP2(xadd); + static u8 test_cc(unsigned int condition, unsigned long flags) { u8 rc; @@ -3861,7 +3863,7 @@ static const struct opcode twobyte_table[256] = { F(DstReg | SrcMem | ModRM, em_bsf), F(DstReg | SrcMem | ModRM, em_bsr), D(DstReg | SrcMem8 | ModRM | Mov), D(DstReg | SrcMem16 | ModRM | Mov), /* 0xC0 - 0xC7 */ - D2bv(DstMem | SrcReg | ModRM | Lock), + F2bv(DstMem | SrcReg | ModRM | SrcWrite | Lock, em_xadd), N, D(DstMem | SrcReg | ModRM | Mov), N, N, N, GD(0, &group9), /* 0xC8 - 0xCF */ @@ -4698,12 +4700,6 @@ twobyte_insn: ctxt->dst.val = (ctxt->src.bytes == 1) ? (s8) ctxt->src.val : (s16) ctxt->src.val; break; - case 0xc0 ... 0xc1: /* xadd */ - fastop(ctxt, em_add); - /* Write back the register source. */ - ctxt->src.val = ctxt->dst.orig_val; - write_register_operand(&ctxt->src); - break; case 0xc3: /* movnti */ ctxt->dst.bytes = ctxt->op_bytes; ctxt->dst.val = (ctxt->op_bytes == 4) ? (u32) ctxt->src.val : |