From: Avi Kivity <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 9147633..656afaa 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2250,6 +2250,21 @@ static int em_call_far(struct x86_emulate_ctxt *ctxt)
return X86EMUL_CONTINUE;
}
+static int em_ret_near_imm(struct x86_emulate_ctxt *ctxt)
+{
+ struct decode_cache *c = &ctxt->decode;
+ int rc;
+
+ c->dst.type = OP_REG;
+ c->dst.addr.reg = &c->eip;
+ c->dst.bytes = c->op_bytes;
+ rc = emulate_pop(ctxt, ctxt->ops, &c->dst.val, c->op_bytes);
+ if (rc != X86EMUL_CONTINUE)
+ return rc;
+ register_address_increment(c, &c->regs[VCPU_REGS_RSP], c->src.val);
+ return X86EMUL_CONTINUE;
+}
+
#define D(_y) { .flags = (_y) }
#define N D(0)
#define G(_f, _g) { .flags = ((_f) | Group), .u.group = (_g) }
@@ -2395,7 +2410,9 @@ static struct opcode opcode_table[256] = {
X8(D(DstReg | SrcImm | Mov)),
/* 0xC0 - 0xC7 */
D(ByteOp | DstMem | SrcImm | ModRM), D(DstMem | SrcImmByte | ModRM),
- N, D(ImplicitOps | Stack), N, N,
+ I(ImplicitOps | Stack | SrcImmU16, em_ret_near_imm),
+ D(ImplicitOps | Stack),
+ N, N,
D(ByteOp | DstMem | SrcImm | ModRM | Mov), D(DstMem | SrcImm | ModRM |
Mov),
/* 0xC8 - 0xCF */
N, N, N, D(ImplicitOps | Stack),
--
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