1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _KBOOT_MMU_H
#define _KBOOT_MMU_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* Kernel boot-time interfaces for handling MMU mappings before the HAT proper
* is running (i.e. before khat_running is set).
*/
#include <sys/mach_mmu.h>
struct xboot_info;
extern void kbm_init(struct xboot_info *);
/*
* Interface to remap the page table window, also used by HAT during init.
*/
extern void *kbm_remap_window(paddr_t physaddr, int writeable);
/*
* Find the next mapping at or above VA, if found returns non-zero and sets:
* - va : virtual address
* - pfn : pfn of real address
* - size : pagesize of the mapping
* - prot : protections
*/
extern int kbm_probe(uintptr_t *va, size_t *len, pfn_t *pfn, uint_t *prot);
/*
* Add a new mapping
*/
extern void kbm_map(uintptr_t va, paddr_t pa, uint_t level, uint_t is_kernel);
#ifdef __xpv
extern void kbm_map_ma(maddr_t ma, uintptr_t va, uint_t level);
#endif
/*
* unmap a single 4K page at VA
*/
extern void kbm_unmap(uintptr_t va);
/*
* Remap a single 4K page at VA (always PROT_READ|PROT_WRITE).
* Returns the pfn of the old mapping.
*/
extern pfn_t kbm_remap(uintptr_t va, pfn_t pfn);
/*
* Make a page mapping read only
*/
extern void kbm_read_only(uintptr_t va, paddr_t pa);
/*
* interface for kmdb to map a physical page, stack is only 1 deep
*/
extern void *kbm_push(paddr_t pa);
extern void kbm_pop(void);
/*
* These are needed by mmu_init()
*/
extern int kbm_nx_support;
extern int kbm_pae_support;
extern int kbm_largepage_support;
/*
* The size of memory mapped for the initial kernel nucleus text
* and data regions setup by the boot loader. needed for startup
*/
extern uint_t kbm_nucleus_size;
#ifdef __cplusplus
}
#endif
#endif /* _KBOOT_MMU_H */
|