1/*
2 * Copyright (c) 2008 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
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.
14 *
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
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28#include <i386/pmap.h>
29
30#define PML4_PROT (INTEL_PTE_VALID | INTEL_PTE_WRITE)
31pml4_entry_t	IdlePML4[PTE_PER_PAGE]
32		__attribute__((section("__INITPT, __data"))) = {
33};
34
35#define PDPT_PROT (INTEL_PTE_VALID)
36pdpt_entry_t	IdlePDPT[PTE_PER_PAGE]
37		__attribute__((section("__INITPT, __data"))) = {
38	[0] = ((uint64_t)(INITPT_SEG_BASE + 2*PAGE_SIZE) | PDPT_PROT),
39	[1] = ((uint64_t)(INITPT_SEG_BASE + 3*PAGE_SIZE) | PDPT_PROT),
40	[2] = ((uint64_t)(INITPT_SEG_BASE + 4*PAGE_SIZE) | PDPT_PROT),
41	[3] = ((uint64_t)(INITPT_SEG_BASE + 5*PAGE_SIZE) | PDPT_PROT),
42};
43
44#if NPGPTD != 4
45#error Please update idle_pt.c to reflect the new value of NPGPTD
46#endif
47
48#if MACHINE_BOOTSTRAPPTD
49
50#define ID_MAP_2MEG(x) [(x)] = ((((uint64_t)(x)) << 21) | (INTEL_PTE_PS | INTEL_PTE_VALID | INTEL_PTE_WRITE)),
51
52#define L0(x,n) x(n)
53#define L1(x,n) L0(x,n-1)   L0(x,n)
54#define L2(x,n) L1(x,n-2)   L1(x,n)
55#define L3(x,n) L2(x,n-4)   L2(x,n)
56#define L4(x,n) L3(x,n-8)   L3(x,n)
57#define L5(x,n) L4(x,n-16)  L4(x,n)
58#define L6(x,n) L5(x,n-32)  L5(x,n)
59#define L7(x,n) L6(x,n-64)  L6(x,n)
60#define L8(x,n) L7(x,n-128) L7(x,n)
61#define L9(x,n) L8(x,n-256) L8(x,n)
62#define L10(x,n) L9(x,n-512) L9(x,n)
63#define L11(x,n) L10(x,n-1024) L10(x,n)
64
65#define FOR_0_TO_2047(x) L11(x,2047)
66
67pd_entry_t	BootPTD[2048]
68		__attribute__((section("__INITPT, __data"))) = {
69	FOR_0_TO_2047(ID_MAP_2MEG)
70};
71#endif /* MACHINE_BOOTSTRAPPTD */
72