--- xnu/xnu-12377.101.15/iokit/Kernel/IOGuardPageMemoryDescriptor.cpp
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the License
- * may not be used to create, or enable the creation or redistribution of,
- * unlawful or unlicensed copies of an Apple operating system, or to
- * circumvent, violate, or enable the circumvention or violation of, any
- * terms of an Apple operating system software license agreement.
- *
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
- */
-#define IOKIT_ENABLE_SHARED_PTR
-#include <IOKit/IOGuardPageMemoryDescriptor.h>
-#include <IOKit/IOMemoryDescriptor.h>
-#include <IOKit/IOLib.h>
-#include <vm/vm_kern_xnu.h>
-#include <mach/mach_vm.h>
-
-#define super IOGeneralMemoryDescriptor
-
-OSDefineMetaClassAndStructorsWithZone(IOGuardPageMemoryDescriptor, IOGeneralMemoryDescriptor, ZC_ZFREE_CLEARMEM);
-
-OSSharedPtr<IOGuardPageMemoryDescriptor>
-IOGuardPageMemoryDescriptor::withSize(vm_size_t size)
-{
-	OSSharedPtr<IOGuardPageMemoryDescriptor> me = OSMakeShared<IOGuardPageMemoryDescriptor>();
-
-	if (me && !me->initWithSize(size)) {
-		me.reset();
-	}
-	return me;
-}
-
-bool
-IOGuardPageMemoryDescriptor::initWithSize(vm_size_t size)
-{
-	mach_vm_address_t address;
-	kern_return_t kr;
-	IOOptionBits  iomdOptions = kIOMemoryTypeVirtual64 | kIOMemoryAsReference | kIODirectionOutIn;
-
-	size = round_page(size);
-
-	_ranges.v64 = IOMallocType(IOAddressRange);
-	if (!_ranges.v64) {
-		return false;
-	}
-
-	kr = mach_vm_allocate_kernel(kernel_map, &address, size,
-	    VM_MAP_KERNEL_FLAGS_ANYWHERE(.vm_tag = VM_KERN_MEMORY_IOKIT));
-	if (kr != KERN_SUCCESS) {
-		return false;
-	}
-
-
-	_ranges.v64->address = address;
-	_ranges.v64->length  = size;
-
-	if (!super::initWithOptions(_ranges.v64, 1, 0, kernel_task, iomdOptions, NULL)) {
-		return false;
-	}
-
-	_size = size;
-	_buffer = (vm_offset_t)address;
-
-	return true;
-}
-
-void
-IOGuardPageMemoryDescriptor::free()
-{
-	if (_buffer) {
-		vm_deallocate(kernel_map, _buffer, _size);
-		_buffer = 0;
-	}
-
-	if (_ranges.v64) {
-		IOFreeType(_ranges.v64, IOAddressRange);
-	}
-
-	super::free();
-}
-
-IOReturn
-IOGuardPageMemoryDescriptor::doMap(vm_map_t           addressMap,
-    IOVirtualAddress * atAddress,
-    IOOptionBits       options,
-    IOByteCount        sourceOffset,
-    IOByteCount        length)
-{
-	IOReturn ret = super::doMap(addressMap, atAddress, options, sourceOffset, length);
-	if (ret == kIOReturnSuccess) {
-		IOMemoryMap *     mapping = (IOMemoryMap *) *atAddress;
-		vm_map_t          map     = mapping->fAddressMap;
-		mach_vm_size_t    length  = mapping->fLength;
-		mach_vm_address_t address = mapping->fAddress;
-		kern_return_t kr = mach_vm_protect(map, address, length, true, VM_PROT_NONE);
-		if (kr != KERN_SUCCESS) {
-			doUnmap(map, (IOVirtualAddress) mapping, 0);
-			return kIOReturnError;
-		}
-	}
-	return ret;
-}