KVM: x86 emulator: Use opcode::execute for RET(C3)

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index c3d071d..2ebec69 100644 (file)
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -1816,6 +1816,16 @@ static int em_grp9(struct x86_emulate_ctxt *ctxt)
        return X86EMUL_CONTINUE;
 }
 
+static int em_ret(struct x86_emulate_ctxt *ctxt)
+{
+       struct decode_cache *c = &ctxt->decode;
+
+       c->dst.type = OP_REG;
+       c->dst.addr.reg = &c->eip;
+       c->dst.bytes = c->op_bytes;
+       return em_pop(ctxt);
+}
+
 static int em_ret_far(struct x86_emulate_ctxt *ctxt)
 {
        struct decode_cache *c = &ctxt->decode;
@@ -3188,7 +3198,7 @@ static struct opcode opcode_table[256] = {
        /* 0xC0 - 0xC7 */
        D2bv(DstMem | SrcImmByte | ModRM),
        I(ImplicitOps | Stack | SrcImmU16, em_ret_near_imm),
-       D(ImplicitOps | Stack),
+       I(ImplicitOps | Stack, em_ret),
        D(DstReg | SrcMemFAddr | ModRM | No64), D(DstReg | SrcMemFAddr | ModRM | No64),
        G(ByteOp, group11), G(0, group11),
        /* 0xC8 - 0xCF */
@@ -3943,12 +3953,6 @@ special_insn:
        case 0xc0 ... 0xc1:
                rc = em_grp2(ctxt);
                break;
-       case 0xc3: /* ret */
-               c->dst.type = OP_REG;
-               c->dst.addr.reg = &c->eip;
-               c->dst.bytes = c->op_bytes;
-               rc = em_pop(ctxt);
-               break;
        case 0xc4:              /* les */
                rc = emulate_load_segment(ctxt, VCPU_SREG_ES);
                break;