--- old/usr/src/uts/i86xpv/io/balloon_drv.c	Fri Aug 10 23:19:19 2018
+++ /dev/null	Fri Aug 10 23:19:19 2018
@@ -1,197 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-
-/*
- * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
- * Use is subject to license terms.
- */
-
-
-/*
- * A simple wrapper around the balloon kernel thread to allow userland
- * programs access to the balloon status.
- */
-
-#include <sys/types.h>
-#include <sys/file.h>
-#include <sys/errno.h>
-#include <sys/open.h>
-#include <sys/cred.h>
-#include <sys/conf.h>
-#include <sys/stat.h>
-#include <sys/modctl.h>
-#include <sys/ddi.h>
-#include <sys/sunddi.h>
-#include <sys/hypervisor.h>
-#include <sys/sysmacros.h>
-#include <sys/balloon_impl.h>
-
-static dev_info_t *balloon_devi;
-
-/*ARGSUSED*/
-static int
-balloon_getinfo(dev_info_t *devi, ddi_info_cmd_t cmd, void *arg, void **result)
-{
-	if (getminor((dev_t)arg) != BALLOON_MINOR)
-		return (DDI_FAILURE);
-
-	switch (cmd) {
-	case DDI_INFO_DEVT2DEVINFO:
-		*result = balloon_devi;
-		break;
-	case DDI_INFO_DEVT2INSTANCE:
-		*result = 0;
-		break;
-	default:
-		return (DDI_FAILURE);
-	}
-
-	return (DDI_SUCCESS);
-}
-
-static int
-balloon_attach(dev_info_t *devi, ddi_attach_cmd_t cmd)
-{
-	if (cmd != DDI_ATTACH)
-		return (DDI_FAILURE);
-
-	if (ddi_create_minor_node(devi, ddi_get_name(devi), S_IFCHR,
-	    ddi_get_instance(devi), DDI_PSEUDO, 0) != DDI_SUCCESS)
-		return (DDI_FAILURE);
-
-	balloon_devi = devi;
-	ddi_report_dev(devi);
-	return (DDI_SUCCESS);
-}
-
-static int
-balloon_detach(dev_info_t *devi, ddi_detach_cmd_t cmd)
-{
-	if (cmd != DDI_DETACH)
-		return (DDI_FAILURE);
-	ddi_remove_minor_node(devi, NULL);
-	balloon_devi = NULL;
-	return (DDI_SUCCESS);
-}
-
-/*ARGSUSED1*/
-static int
-balloon_open(dev_t *dev, int flag, int otyp, cred_t *cr)
-{
-	return (getminor(*dev) == BALLOON_MINOR ? 0 : ENXIO);
-}
-
-/*
- * When asked for one of the balloon values, we simply query the balloon thread.
- */
-/*ARGSUSED*/
-static int
-balloon_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *cr,
-    int *rval_p)
-{
-	int rval = 0;
-	size_t value;
-
-	switch (cmd) {
-	case BLN_IOCTL_CURRENT:
-	case BLN_IOCTL_TARGET:
-	case BLN_IOCTL_LOW:
-	case BLN_IOCTL_HIGH:
-	case BLN_IOCTL_LIMIT:
-		value = balloon_values(cmd);
-		if (ddi_copyout((void *)&value, (void *)arg, sizeof (value),
-		    mode))
-			return (EFAULT);
-		break;
-	default:
-		rval = EINVAL;
-		break;
-	}
-	return (rval);
-}
-
-static struct cb_ops balloon_cb_ops = {
-	balloon_open,
-	nulldev,	/* close */
-	nodev,		/* strategy */
-	nodev,		/* print */
-	nodev,		/* dump */
-	nodev,		/* read */
-	nodev,		/* write */
-	balloon_ioctl,	/* ioctl */
-	nodev,		/* devmap */
-	nodev,		/* mmap */
-	nodev,		/* segmap */
-	nochpoll,	/* poll */
-	ddi_prop_op,
-	NULL,
-	D_64BIT | D_MP,
-	CB_REV,
-	NULL,
-	NULL
-};
-
-static struct dev_ops balloon_dv_ops = {
-	DEVO_REV,
-	0,
-	balloon_getinfo,
-	nulldev,		/* identify */
-	nulldev,		/* probe */
-	balloon_attach,
-	balloon_detach,
-	nodev,			/* reset */
-	&balloon_cb_ops,
-	NULL,			/* struct bus_ops */
-	NULL,			/* power */
-	ddi_quiesce_not_needed,		/* quiesce */
-};
-
-static struct modldrv modldrv = {
-	&mod_driverops,
-	"balloon driver",
-	&balloon_dv_ops
-};
-
-static struct modlinkage modl = {
-	MODREV_1,
-	{
-		(void *)&modldrv,
-		NULL		/* null termination */
-	}
-};
-
-int
-_init(void)
-{
-	return (mod_install(&modl));
-}
-
-int
-_fini(void)
-{
-	return (mod_remove(&modl));
-}
-
-int
-_info(struct modinfo *modinfo)
-{
-	return (mod_info(&modl, modinfo));
-}
