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1 | /* |
1 | /* |
2 | * Copyright (C) 2005 Ondrej Palkovsky |
2 | * Copyright (C) 2005 Ondrej Palkovsky |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | #ifndef __amd64_PAGE_H__ |
29 | #ifndef __amd64_PAGE_H__ |
30 | #define __amd64_PAGE_H__ |
30 | #define __amd64_PAGE_H__ |
31 | 31 | ||
32 | #include <arch/mm/frame.h> |
32 | #include <arch/mm/frame.h> |
33 | 33 | ||
- | 34 | #define PAGE_WIDTH FRAME_WIDTH |
|
- | 35 | #define PAGE_SIZE FRAME_SIZE |
|
- | 36 | ||
- | 37 | #ifdef KERNEL |
|
- | 38 | ||
34 | #ifndef __ASM__ |
39 | #ifndef __ASM__ |
35 | # include <mm/page.h> |
40 | # include <mm/page.h> |
36 | # include <arch/types.h> |
41 | # include <arch/types.h> |
37 | #endif |
42 | #endif |
38 | 43 | ||
39 | #define PAGE_WIDTH FRAME_WIDTH |
- | |
40 | #define PAGE_SIZE FRAME_SIZE |
- | |
41 | - | ||
42 | #ifndef __ASM__ |
44 | #ifndef __ASM__ |
43 | # define KA2PA(x) (((__address) (x)) - 0xffffffff80000000) |
45 | # define KA2PA(x) (((__address) (x)) - 0xffffffff80000000) |
44 | # define PA2KA(x) (((__address) (x)) + 0xffffffff80000000) |
46 | # define PA2KA(x) (((__address) (x)) + 0xffffffff80000000) |
45 | #else |
47 | #else |
46 | # define KA2PA(x) ((x) - 0xffffffff80000000) |
48 | # define KA2PA(x) ((x) - 0xffffffff80000000) |
47 | # define PA2KA(x) ((x) + 0xffffffff80000000) |
49 | # define PA2KA(x) ((x) + 0xffffffff80000000) |
48 | #endif |
50 | #endif |
49 | 51 | ||
50 | #define PTL0_ENTRIES_ARCH 512 |
52 | #define PTL0_ENTRIES_ARCH 512 |
51 | #define PTL1_ENTRIES_ARCH 512 |
53 | #define PTL1_ENTRIES_ARCH 512 |
52 | #define PTL2_ENTRIES_ARCH 512 |
54 | #define PTL2_ENTRIES_ARCH 512 |
53 | #define PTL3_ENTRIES_ARCH 512 |
55 | #define PTL3_ENTRIES_ARCH 512 |
54 | 56 | ||
55 | #define PTL0_INDEX_ARCH(vaddr) (((vaddr)>>39)&0x1ff) |
57 | #define PTL0_INDEX_ARCH(vaddr) (((vaddr)>>39)&0x1ff) |
56 | #define PTL1_INDEX_ARCH(vaddr) (((vaddr)>>30)&0x1ff) |
58 | #define PTL1_INDEX_ARCH(vaddr) (((vaddr)>>30)&0x1ff) |
57 | #define PTL2_INDEX_ARCH(vaddr) (((vaddr)>>21)&0x1ff) |
59 | #define PTL2_INDEX_ARCH(vaddr) (((vaddr)>>21)&0x1ff) |
58 | #define PTL3_INDEX_ARCH(vaddr) (((vaddr)>>12)&0x1ff) |
60 | #define PTL3_INDEX_ARCH(vaddr) (((vaddr)>>12)&0x1ff) |
59 | 61 | ||
60 | #define GET_PTL1_ADDRESS_ARCH(ptl0, i) ((pte_t *) ((((__u64) ((pte_t *)(ptl0))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl0))[(i)].addr_32_51)<<32 ))) |
62 | #define GET_PTL1_ADDRESS_ARCH(ptl0, i) ((pte_t *) ((((__u64) ((pte_t *)(ptl0))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl0))[(i)].addr_32_51)<<32 ))) |
61 | #define GET_PTL2_ADDRESS_ARCH(ptl1, i) ((pte_t *) ((((__u64) ((pte_t *)(ptl1))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl1))[(i)].addr_32_51)<<32 ))) |
63 | #define GET_PTL2_ADDRESS_ARCH(ptl1, i) ((pte_t *) ((((__u64) ((pte_t *)(ptl1))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl1))[(i)].addr_32_51)<<32 ))) |
62 | #define GET_PTL3_ADDRESS_ARCH(ptl2, i) ((pte_t *) ((((__u64) ((pte_t *)(ptl2))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl2))[(i)].addr_32_51)<<32 ))) |
64 | #define GET_PTL3_ADDRESS_ARCH(ptl2, i) ((pte_t *) ((((__u64) ((pte_t *)(ptl2))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl2))[(i)].addr_32_51)<<32 ))) |
63 | #define GET_FRAME_ADDRESS_ARCH(ptl3, i) ((__address *) ((((__u64) ((pte_t *)(ptl3))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl3))[(i)].addr_32_51)<<32 ))) |
65 | #define GET_FRAME_ADDRESS_ARCH(ptl3, i) ((__address *) ((((__u64) ((pte_t *)(ptl3))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl3))[(i)].addr_32_51)<<32 ))) |
64 | 66 | ||
65 | #define SET_PTL0_ADDRESS_ARCH(ptl0) (write_cr3((__address) (ptl0))) |
67 | #define SET_PTL0_ADDRESS_ARCH(ptl0) (write_cr3((__address) (ptl0))) |
66 | #define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) set_pt_addr((pte_t *)(ptl0), (index_t)(i), a) |
68 | #define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) set_pt_addr((pte_t *)(ptl0), (index_t)(i), a) |
67 | #define SET_PTL2_ADDRESS_ARCH(ptl1, i, a) set_pt_addr((pte_t *)(ptl1), (index_t)(i), a) |
69 | #define SET_PTL2_ADDRESS_ARCH(ptl1, i, a) set_pt_addr((pte_t *)(ptl1), (index_t)(i), a) |
68 | #define SET_PTL3_ADDRESS_ARCH(ptl2, i, a) set_pt_addr((pte_t *)(ptl2), (index_t)(i), a) |
70 | #define SET_PTL3_ADDRESS_ARCH(ptl2, i, a) set_pt_addr((pte_t *)(ptl2), (index_t)(i), a) |
69 | #define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) set_pt_addr((pte_t *)(ptl3), (index_t)(i), a) |
71 | #define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) set_pt_addr((pte_t *)(ptl3), (index_t)(i), a) |
70 | 72 | ||
71 | #define GET_PTL1_FLAGS_ARCH(ptl0, i) get_pt_flags((pte_t *)(ptl0), (index_t)(i)) |
73 | #define GET_PTL1_FLAGS_ARCH(ptl0, i) get_pt_flags((pte_t *)(ptl0), (index_t)(i)) |
72 | #define GET_PTL2_FLAGS_ARCH(ptl1, i) get_pt_flags((pte_t *)(ptl1), (index_t)(i)) |
74 | #define GET_PTL2_FLAGS_ARCH(ptl1, i) get_pt_flags((pte_t *)(ptl1), (index_t)(i)) |
73 | #define GET_PTL3_FLAGS_ARCH(ptl2, i) get_pt_flags((pte_t *)(ptl2), (index_t)(i)) |
75 | #define GET_PTL3_FLAGS_ARCH(ptl2, i) get_pt_flags((pte_t *)(ptl2), (index_t)(i)) |
74 | #define GET_FRAME_FLAGS_ARCH(ptl3, i) get_pt_flags((pte_t *)(ptl3), (index_t)(i)) |
76 | #define GET_FRAME_FLAGS_ARCH(ptl3, i) get_pt_flags((pte_t *)(ptl3), (index_t)(i)) |
75 | 77 | ||
76 | #define SET_PTL1_FLAGS_ARCH(ptl0, i, x) set_pt_flags((pte_t *)(ptl0), (index_t)(i), (x)) |
78 | #define SET_PTL1_FLAGS_ARCH(ptl0, i, x) set_pt_flags((pte_t *)(ptl0), (index_t)(i), (x)) |
77 | #define SET_PTL2_FLAGS_ARCH(ptl1, i, x) set_pt_flags((pte_t *)(ptl1), (index_t)(i), (x)) |
79 | #define SET_PTL2_FLAGS_ARCH(ptl1, i, x) set_pt_flags((pte_t *)(ptl1), (index_t)(i), (x)) |
78 | #define SET_PTL3_FLAGS_ARCH(ptl2, i, x) set_pt_flags((pte_t *)(ptl2), (index_t)(i), (x)) |
80 | #define SET_PTL3_FLAGS_ARCH(ptl2, i, x) set_pt_flags((pte_t *)(ptl2), (index_t)(i), (x)) |
79 | #define SET_FRAME_FLAGS_ARCH(ptl3, i, x) set_pt_flags((pte_t *)(ptl3), (index_t)(i), (x)) |
81 | #define SET_FRAME_FLAGS_ARCH(ptl3, i, x) set_pt_flags((pte_t *)(ptl3), (index_t)(i), (x)) |
80 | 82 | ||
81 | #define PTE_VALID_ARCH(p) (*((__u64 *) (p)) != 0) |
83 | #define PTE_VALID_ARCH(p) (*((__u64 *) (p)) != 0) |
82 | 84 | ||
83 | #ifndef __ASM__ |
85 | #ifndef __ASM__ |
84 | 86 | ||
85 | /** Page Table Entry. */ |
87 | /** Page Table Entry. */ |
86 | struct page_specifier { |
88 | struct page_specifier { |
87 | unsigned present : 1; |
89 | unsigned present : 1; |
88 | unsigned writeable : 1; |
90 | unsigned writeable : 1; |
89 | unsigned uaccessible : 1; |
91 | unsigned uaccessible : 1; |
90 | unsigned page_write_through : 1; |
92 | unsigned page_write_through : 1; |
91 | unsigned page_cache_disable : 1; |
93 | unsigned page_cache_disable : 1; |
92 | unsigned accessed : 1; |
94 | unsigned accessed : 1; |
93 | unsigned dirty : 1; |
95 | unsigned dirty : 1; |
94 | unsigned unused: 1; |
96 | unsigned unused: 1; |
95 | unsigned global : 1; |
97 | unsigned global : 1; |
96 | unsigned soft_valid : 1; /**< Valid content even if present bit is cleared. */ |
98 | unsigned soft_valid : 1; /**< Valid content even if present bit is cleared. */ |
97 | unsigned avl : 2; |
99 | unsigned avl : 2; |
98 | unsigned addr_12_31 : 30; |
100 | unsigned addr_12_31 : 30; |
99 | unsigned addr_32_51 : 21; |
101 | unsigned addr_32_51 : 21; |
100 | unsigned no_execute : 1; |
102 | unsigned no_execute : 1; |
101 | } __attribute__ ((packed)); |
103 | } __attribute__ ((packed)); |
102 | 104 | ||
103 | static inline int get_pt_flags(pte_t *pt, index_t i) |
105 | static inline int get_pt_flags(pte_t *pt, index_t i) |
104 | { |
106 | { |
105 | pte_t *p = &pt[i]; |
107 | pte_t *p = &pt[i]; |
106 | 108 | ||
107 | return ( |
109 | return ( |
108 | (!p->page_cache_disable)<<PAGE_CACHEABLE_SHIFT | |
110 | (!p->page_cache_disable)<<PAGE_CACHEABLE_SHIFT | |
109 | (!p->present)<<PAGE_PRESENT_SHIFT | |
111 | (!p->present)<<PAGE_PRESENT_SHIFT | |
110 | p->uaccessible<<PAGE_USER_SHIFT | |
112 | p->uaccessible<<PAGE_USER_SHIFT | |
111 | 1<<PAGE_READ_SHIFT | |
113 | 1<<PAGE_READ_SHIFT | |
112 | p->writeable<<PAGE_WRITE_SHIFT | |
114 | p->writeable<<PAGE_WRITE_SHIFT | |
113 | (!p->no_execute)<<PAGE_EXEC_SHIFT | |
115 | (!p->no_execute)<<PAGE_EXEC_SHIFT | |
114 | p->global<<PAGE_GLOBAL_SHIFT |
116 | p->global<<PAGE_GLOBAL_SHIFT |
115 | ); |
117 | ); |
116 | } |
118 | } |
117 | 119 | ||
118 | static inline void set_pt_addr(pte_t *pt, index_t i, __address a) |
120 | static inline void set_pt_addr(pte_t *pt, index_t i, __address a) |
119 | { |
121 | { |
120 | pte_t *p = &pt[i]; |
122 | pte_t *p = &pt[i]; |
121 | 123 | ||
122 | p->addr_12_31 = (a >> 12) & 0xfffff; |
124 | p->addr_12_31 = (a >> 12) & 0xfffff; |
123 | p->addr_32_51 = a >> 32; |
125 | p->addr_32_51 = a >> 32; |
124 | } |
126 | } |
125 | 127 | ||
126 | static inline void set_pt_flags(pte_t *pt, index_t i, int flags) |
128 | static inline void set_pt_flags(pte_t *pt, index_t i, int flags) |
127 | { |
129 | { |
128 | pte_t *p = &pt[i]; |
130 | pte_t *p = &pt[i]; |
129 | 131 | ||
130 | p->page_cache_disable = !(flags & PAGE_CACHEABLE); |
132 | p->page_cache_disable = !(flags & PAGE_CACHEABLE); |
131 | p->present = !(flags & PAGE_NOT_PRESENT); |
133 | p->present = !(flags & PAGE_NOT_PRESENT); |
132 | p->uaccessible = (flags & PAGE_USER) != 0; |
134 | p->uaccessible = (flags & PAGE_USER) != 0; |
133 | p->writeable = (flags & PAGE_WRITE) != 0; |
135 | p->writeable = (flags & PAGE_WRITE) != 0; |
134 | p->no_execute = (flags & PAGE_EXEC) == 0; |
136 | p->no_execute = (flags & PAGE_EXEC) == 0; |
135 | p->global = (flags & PAGE_GLOBAL) != 0; |
137 | p->global = (flags & PAGE_GLOBAL) != 0; |
136 | 138 | ||
137 | /* |
139 | /* |
138 | * Ensure that there is at least one bit set even if the present bit is cleared. |
140 | * Ensure that there is at least one bit set even if the present bit is cleared. |
139 | */ |
141 | */ |
140 | p->soft_valid = 1; |
142 | p->soft_valid = 1; |
141 | } |
143 | } |
142 | 144 | ||
143 | extern void page_arch_init(void); |
145 | extern void page_arch_init(void); |
144 | 146 | ||
- | 147 | #endif /* __ASM__ */ |
|
- | 148 | ||
145 | #endif |
149 | #endif /* KERNEL */ |
146 | 150 | ||
147 | #endif |
151 | #endif |
148 | 152 |