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| author | Avi Kivity <avi.kivity@gmail.com> | 2013-01-19 19:51:53 +0200 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2013-01-23 22:15:37 -0200 |
| commit | 95413dc41398fec2518abf4e0449503b1306dcbc (patch) | |
| tree | de61529e103aa9153724b50bab689c1ed6749fa9 /arch/x86/kvm/emulate.c | |
| parent | 9ae9febae9500a0a6f5ce29ee4b8d942b5332529 (diff) | |
| download | op-kernel-dev-95413dc41398fec2518abf4e0449503b1306dcbc.zip op-kernel-dev-95413dc41398fec2518abf4e0449503b1306dcbc.tar.gz | |
KVM: x86 emulator: convert INC/DEC to fastop
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi.kivity@gmail.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm/emulate.c')
| -rw-r--r-- | arch/x86/kvm/emulate.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index e13138d..edb09e9 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -2055,6 +2055,8 @@ static int em_jmp_far(struct x86_emulate_ctxt *ctxt) FASTOP1(not); FASTOP1(neg); +FASTOP1(inc); +FASTOP1(dec); FASTOP2CL(rol); FASTOP2CL(ror); @@ -2105,12 +2107,6 @@ static int em_grp45(struct x86_emulate_ctxt *ctxt) int rc = X86EMUL_CONTINUE; switch (ctxt->modrm_reg) { - case 0: /* inc */ - emulate_1op(ctxt, "inc"); - break; - case 1: /* dec */ - emulate_1op(ctxt, "dec"); - break; case 2: /* call near abs */ { long int old_eip; old_eip = ctxt->_eip; @@ -3735,14 +3731,14 @@ static const struct opcode group3[] = { }; static const struct opcode group4[] = { - I(ByteOp | DstMem | SrcNone | Lock, em_grp45), - I(ByteOp | DstMem | SrcNone | Lock, em_grp45), + F(ByteOp | DstMem | SrcNone | Lock, em_inc), + F(ByteOp | DstMem | SrcNone | Lock, em_dec), N, N, N, N, N, N, }; static const struct opcode group5[] = { - I(DstMem | SrcNone | Lock, em_grp45), - I(DstMem | SrcNone | Lock, em_grp45), + F(DstMem | SrcNone | Lock, em_inc), + F(DstMem | SrcNone | Lock, em_dec), I(SrcMem | Stack, em_grp45), I(SrcMemFAddr | ImplicitOps | Stack, em_call_far), I(SrcMem | Stack, em_grp45), @@ -3891,7 +3887,7 @@ static const struct opcode opcode_table[256] = { /* 0x38 - 0x3F */ F6ALU(NoWrite, em_cmp), N, N, /* 0x40 - 0x4F */ - X16(D(DstReg)), + X8(F(DstReg, em_inc)), X8(F(DstReg, em_dec)), /* 0x50 - 0x57 */ X8(I(SrcReg | Stack, em_push)), /* 0x58 - 0x5F */ @@ -4681,12 +4677,6 @@ special_insn: goto twobyte_insn; switch (ctxt->b) { - case 0x40 ... 0x47: /* inc r16/r32 */ - emulate_1op(ctxt, "inc"); - break; - case 0x48 ... 0x4f: /* dec r16/r32 */ - emulate_1op(ctxt, "dec"); - break; case 0x63: /* movsxd */ if (ctxt->mode != X86EMUL_MODE_PROT64) goto cannot_emulate; |
