projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 6601e61a | 1 | /* |
| 0c530ab8 | 2 | * Copyright (c) 2005 Apple Computer, Inc. All rights reserved. |
| 6601e61a | 3 | * |
| 2d21ac55 | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
| 6601e61a | 5 | * |
| 2d21ac55 A |
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. | |
| 6601e61a | 14 | * |
| 2d21ac55 A |
15 | * Please obtain a copy of the License at |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
| 17 | * | |
| 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 A |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 2d21ac55 A |
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. | |
| 6601e61a | 25 | * |
| 2d21ac55 | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| 6601e61a A |
27 | */ |
| 28 | ||
| 0c530ab8 A |
29 | #ifndef _I386_LOWMEM_H_ |
| 30 | #define _I386_LOWMEM_H_ | |
| 6601e61a | 31 | |
| 6601e61a | 32 | |
| 0c530ab8 | 33 | #ifdef __APPLE_API_PRIVATE |
| 6601e61a | 34 | |
| 316670eb A |
35 | /* |
| 36 | * The kernel better be statically linked at VM_MIN_KERNEL_ADDRESS + 0x100000 | |
| 37 | */ | |
| b0d623f7 | 38 | #define I386_KERNEL_IMAGE_BASE_PAGE 0x100 |
| 0c530ab8 | 39 | |
| b0d623f7 A |
40 | #if defined(__i386__) |
| 41 | #define I386_LOWMEM_RESERVED 0x18 | |
| 42 | ||
| 43 | #define I386_HIB_PAGETABLE 0x13 | |
| 44 | #define I386_HIB_PAGETABLE_COUNT 5 | |
| 45 | ||
| 46 | #elif defined(__x86_64__) | |
| 47 | /* For K64, only 3 pages are reserved | |
| 48 | * - physical page zero, a gap page, and then real-mode-bootstrap/lowGlo. | |
| 49 | * Note that the kernel virtual address 0xffffff8000002000 is re-mapped | |
| 50 | * to the low globals and that physical page, 0x2000, is used by the bootstrap. | |
| 51 | */ | |
| 52 | #define I386_LOWMEM_RESERVED 3 | |
| 53 | #endif | |
| 0c530ab8 A |
54 | |
| 55 | #endif /* __APPLE_API_PRIVATE */ | |
| 56 | ||
| 57 | #endif /* !_I386_LOWMEM_H_ */ |