KVM: x86 emulator: add macros for defining 2-operand fastop emulation

Acked-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi.kivity@gmail.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 09dbdc5..3b5d4dd 100644 (file)
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -465,6 +465,17 @@ static void invalidate_registers(struct x86_emulate_ctxt *ctxt)
        ON64(FOP1E(op##q, rax)) \
        FOP_END
 
+#define FOP2E(op,  dst, src)      \
+       FOP_ALIGN #op " %" #src ", %" #dst " \n\t" FOP_RET
+
+#define FASTOP2(op) \
+       FOP_START(op) \
+       FOP2E(op##b, al, bl) \
+       FOP2E(op##w, ax, bx) \
+       FOP2E(op##l, eax, ebx) \
+       ON64(FOP2E(op##q, rax, rbx)) \
+       FOP_END
+
 #define __emulate_1op_rax_rdx(ctxt, _op, _suffix, _ex)                 \
        do {                                                            \
                unsigned long _tmp;                                     \
@@ -3696,6 +3707,7 @@ static int check_perm_out(struct x86_emulate_ctxt *ctxt)
 #define D2bv(_f)      D((_f) | ByteOp), D(_f)
 #define D2bvIP(_f, _i, _p) DIP((_f) | ByteOp, _i, _p), DIP(_f, _i, _p)
 #define I2bv(_f, _e)  I((_f) | ByteOp, _e), I(_f, _e)
+#define F2bv(_f, _e)  F((_f) | ByteOp, _e), F(_f, _e)
 #define I2bvIP(_f, _e, _i, _p) \
        IIP((_f) | ByteOp, _e, _i, _p), IIP(_f, _e, _i, _p)