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6601e61a 1/*
0c530ab8 2 * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
6601e61a 3 *
2d21ac55 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
0a7de745 5 *
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6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
0a7de745 14 *
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15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
0a7de745 17 *
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18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
6601e61a
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20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55
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22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
0a7de745 25 *
2d21ac55 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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27 */
28
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29#ifndef _I386_LOWMEM_H_
30#define _I386_LOWMEM_H_
6601e61a 31
6601e61a 32
0c530ab8 33#ifdef __APPLE_API_PRIVATE
6601e61a 34
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35/*
36 * The kernel better be statically linked at VM_MIN_KERNEL_ADDRESS + 0x100000
37 */
0a7de745 38#define I386_KERNEL_IMAGE_BASE_PAGE 0x100
0c530ab8 39
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40/* For K64, only 3 pages are reserved
41 * - physical page zero, a gap page, and then real-mode-bootstrap/lowGlo.
0a7de745 42 * Note that the kernel virtual address KERNEL_BASE+0x2000 is re-mapped
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43 * to the low globals and that physical page, 0x2000, is used by the bootstrap.
44 */
0a7de745 45#define I386_LOWMEM_RESERVED 3
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46
47#endif /* __APPLE_API_PRIVATE */
48
49#endif /* !_I386_LOWMEM_H_ */