Commit f5f87dfb authored by Paolo Bonzini's avatar Paolo Bonzini
Browse files

KVM: emulate: simplify writeback 



The "if/return" checks are useless, because we return X86EMUL_CONTINUE
anyway if we do not return.

Reviewed-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 54cfdb3e

arch/x86/kvm/emulate.c

+11 −17
Original line number Diff line number Diff line
@@ -1588,34 +1588,28 @@ static void write_register_operand(struct operand *op) 


static int writeback(struct x86_emulate_ctxt *ctxt, struct operand *op)

{

	int rc;



	switch (op->type) {

	case OP_REG:

		write_register_operand(op);

		break;

	case OP_MEM:

		if (ctxt->lock_prefix)

			rc = segmented_cmpxchg(ctxt,

			return segmented_cmpxchg(ctxt,

						 op->addr.mem,

						 &op->orig_val,

						 &op->val,

						 op->bytes);

		else

			rc = segmented_write(ctxt,

			return segmented_write(ctxt,

					       op->addr.mem,

					       &op->val,

					       op->bytes);

		if (rc != X86EMUL_CONTINUE)

			return rc;

		break;

	case OP_MEM_STR:

		rc = segmented_write(ctxt,

		return segmented_write(ctxt,

				       op->addr.mem,

				       op->data,

				       op->bytes * op->count);

		if (rc != X86EMUL_CONTINUE)

			return rc;

		break;

	case OP_XMM:

		write_sse_reg(ctxt, &op->vec_val, op->addr.xmm);