/*
 * Linux 2.6.32 and later Kernel module for VMware MVP Hypervisor Support
 *
 * Copyright (C) 2010-2012 VMware, Inc. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; see the file COPYING.  If not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
#line 5

#ifndef _MVPKM_KERNEL_H
#define _MVPKM_KERNEL_H

#define INCLUDE_ALLOW_MODULE
#define INCLUDE_ALLOW_GPL
#include "include_check.h"

#include <linux/rwsem.h>
#include <linux/kobject.h>
#include <linux/rbtree.h>

#ifdef CONFIG_HAS_WAKELOCK
#include <linux/wakelock.h>
#endif

#include "atomic.h"
#include "montimer_kernel.h"
#include "worldswitch.h"

/**
 * @file
 *
 * @brief The kernel level driver.
 */

struct MvpkmVM {
   struct kobject      kobj;            ///< used to hook into sysfs
   struct kset        *devicesKSet;     ///< kset to list virtual device entries
   struct kset        *miscKSet;        ///< kset to list miscellaneous entries
   _Bool               haveKObj;        ///< used to properly release instance
   struct rb_root      lockedRoot;      ///< locked page RB tree root
   struct rw_semaphore lockedSem;       ///< linked list rw semaphore
   AtmUInt32           usedPages;       ///< number of MEMREGION_MAINMEM pages
   _Bool               isMonitorInited; ///< Has SetupMonitor been called already?
   WorldSwitchPage    *wsp;             ///< worldswitch page
   wait_queue_head_t   wfiWaitQ;        ///< guest VCPU is waiting-for-interrupt
   struct rw_semaphore wspSem;          /*<  prevents entries the WFI
                                             wait Q from disappearing
                                             underneath us in
                                             MvpkmShrink. */
   MonTimer            monTimer;        /*<  monitor timers, there
                                             should be one of these
                                             per VCPU */
   MPN                 stubPageMPN;     /*<  stub page to be used for
                                             unmappable pages */
   struct vm_struct   *wspHkvaArea;     ///< VM area struct for wspHkvaArea
   HKVA                wspHKVADummyPage;///< Dummy page used for backing wspHkvaArea
#ifdef CONFIG_HAS_WAKELOCK
   struct wake_lock    wakeLock;        ///< guest running wake lock
#endif
   struct rw_semaphore monThreadTaskSem;/*<  prevents monThreadTask from
                                             disappearing underneath us */
   struct task_struct *monThreadTask;
   struct timer_list balloonWDTimer;    /// Balloon watchdog timer
   _Bool balloonWDEnabled;              /// Balloon watchdog enabled?
};

typedef struct MvpkmVM MvpkmVM;

void Mvpkm_WakeGuest(MvpkmVM *vm, int why);
struct kset *Mvpkm_FindVMNamedKSet(int vmID, const char *name);

#endif