/*****************************************************************************************
Copyright (c) 2002-2004 The UbixOS Project
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are
permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list of
conditions, the following disclaimer and the list of authors. Redistributions in binary
form must reproduce the above copyright notice, this list of conditions, the following
disclaimer and the list of authors in the documentation and/or other materials provided
with the distribution. Neither the name of the UbixOS Project nor the names of its
contributors may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
$Id$
*****************************************************************************************/
#ifndef _VMM_H
#define _VMM_H
#include <ubixos/types.h>
#include <ubixos/spinlock.h>
#include <vmm/paging.h>
#define memAvail 1
#define memNotavail 2
#define vmmID -3
#define vmmMemoryMapAddr 0xE6667000
typedef struct _mMap mMap;
struct _mMap
{
uInt32 pageAddr;
uInt32 physicalAddr;
uInt16 status;
uInt16 reserved;
pid_t pid;
int cowCounter;
mMap *First;
mMap *Last;
mMap *Next;
mMap *Previous;
};
extern int numPages;
extern mMap *vmmMemoryMap;
int vmm_init();
int vmmMemMapInit();
int countMemory();
uInt32 vmmFindFreePage(pidType pid);
int freePage(uInt32 pageAddr);
int adjustCowCounter(uInt32 baseAddr,int adjustment);
void vmmFreeProcessPages(pidType pid);
#endif
/***
$Log$
Revision 1.13 2005/08/10 11:34:53 fsdfs
fixed a compiler error.
Revision 1.12 2005/08/10 09:47:41 fsdfs
updates + kmalloc() and kfree() stubs
Revision 1.11 2005/08/10 08:09:17 fsdfs
the new memory management suite is located in sys/mm now.
heres the idea. basically what we are doing is allocating every bit
of physical memory available to us and flagging them as used. when
we create virtual memory, we simply set the pageAddr to the address
of the virtual address, and leave the physicalAddr property to
it's respective physical location in RAM.
Revision 1.10 2005/08/10 07:07:03 fsdfs
vmm_pageFault2() implemented
Revision 1.9 2005/08/10 06:01:59 fsdfs
cleaned up dependencies. rewrote vmmCopyVirtualSpace. does not compile
CVSn: ----------------------------------------------------------------------
Revision 1.8 2005/08/10 04:35:03 fsdfs
updates. gcc is still barking at me for adding new items to the headers.
Revision 1.7 2005/08/10 04:14:04 fsdfs
reworking memory management and WTF is with all the errors in the headers
it won't let me add anything!?
Revision 1.6 2004/07/21 17:39:04 reddawg
removed device
Revision 1.5 2004/07/19 02:08:28 reddawg
Cleaned out the rest of debuging code also temporarily disabled the ip stack to improve boot time
Revision 1.4 2004/07/09 12:18:19 reddawg
Updating Initialization Procedures
Revision 1.3 2004/05/21 15:21:04 reddawg
Cleaned up
END
***/
