KVM: x86 emulator: convert a few freestanding emulations 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>

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index d06354d..e99fb72 100644 (file)
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2209,7 +2209,7 @@ static int em_cmpxchg(struct x86_emulate_ctxt *ctxt)
        /* Save real source value, then compare EAX against destination. */
        ctxt->src.orig_val = ctxt->src.val;
        ctxt->src.val = reg_read(ctxt, VCPU_REGS_RAX);
-       emulate_2op_SrcV(ctxt, "cmp");
+       fastop(ctxt, em_cmp);
 
        if (ctxt->eflags & EFLG_ZF) {
                /* Success: write back to memory. */
@@ -2977,7 +2977,7 @@ static int em_das(struct x86_emulate_ctxt *ctxt)
        ctxt->src.type = OP_IMM;
        ctxt->src.val = 0;
        ctxt->src.bytes = 1;
-       emulate_2op_SrcV(ctxt, "or");
+       fastop(ctxt, em_or);
        ctxt->eflags &= ~(X86_EFLAGS_AF | X86_EFLAGS_CF);
        if (cf)
                ctxt->eflags |= X86_EFLAGS_CF;
@@ -4816,7 +4816,7 @@ twobyte_insn:
                                                        (s16) ctxt->src.val;
                break;
        case 0xc0 ... 0xc1:     /* xadd */
-               emulate_2op_SrcV(ctxt, "add");
+               fastop(ctxt, em_add);
                /* Write back the register source. */
                ctxt->src.val = ctxt->dst.orig_val;
                write_register_operand(&ctxt->src);