1/*-
2 * Copyright (c) 2014 Andrew Turner
3 * Copyright (c) 2014-2015 The FreeBSD Foundation
4 * All rights reserved.
5 *
6 * This software was developed by Andrew Turner under
7 * sponsorship from the FreeBSD Foundation.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
| 1/*-
2 * Copyright (c) 2014 Andrew Turner
3 * Copyright (c) 2014-2015 The FreeBSD Foundation
4 * All rights reserved.
5 *
6 * This software was developed by Andrew Turner under
7 * sponsorship from the FreeBSD Foundation.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
|
31 */
32
33#ifndef _MACHINE_PTE_H_
34#define _MACHINE_PTE_H_
35
36#ifndef LOCORE
37typedef uint64_t pd_entry_t; /* page directory entry */
38typedef uint64_t pt_entry_t; /* page table entry */
39#endif
40
41/* Block and Page attributes */
42/* TODO: Add the upper attributes */
43#define ATTR_MASK_H UINT64_C(0xfff0000000000000)
44#define ATTR_MASK_L UINT64_C(0x0000000000000fff)
45#define ATTR_MASK (ATTR_MASK_H | ATTR_MASK_L)
46/* Bits 58:55 are reserved for software */
47#define ATTR_SW_MANAGED (1UL << 56)
48#define ATTR_SW_WIRED (1UL << 55)
49#define ATTR_nG (1 << 11)
50#define ATTR_AF (1 << 10)
51#define ATTR_SH(x) ((x) << 8)
52#define ATTR_SH_MASK ATTR_SH(3)
53#define ATTR_SH_NS 0 /* Non-shareable */
54#define ATTR_SH_OS 2 /* Outer-shareable */
55#define ATTR_SH_IS 3 /* Inner-shareable */
56#define ATTR_AP_RW_BIT (1 << 7)
57#define ATTR_AP(x) ((x) << 6)
58#define ATTR_AP_MASK ATTR_AP(3)
59#define ATTR_AP_RW (0 << 1)
60#define ATTR_AP_RO (1 << 1)
61#define ATTR_AP_USER (1 << 0)
62#define ATTR_NS (1 << 5)
63#define ATTR_IDX(x) ((x) << 2)
64#define ATTR_IDX_MASK (7 << 2)
65
| 31 */
32
33#ifndef _MACHINE_PTE_H_
34#define _MACHINE_PTE_H_
35
36#ifndef LOCORE
37typedef uint64_t pd_entry_t; /* page directory entry */
38typedef uint64_t pt_entry_t; /* page table entry */
39#endif
40
41/* Block and Page attributes */
42/* TODO: Add the upper attributes */
43#define ATTR_MASK_H UINT64_C(0xfff0000000000000)
44#define ATTR_MASK_L UINT64_C(0x0000000000000fff)
45#define ATTR_MASK (ATTR_MASK_H | ATTR_MASK_L)
46/* Bits 58:55 are reserved for software */
47#define ATTR_SW_MANAGED (1UL << 56)
48#define ATTR_SW_WIRED (1UL << 55)
49#define ATTR_nG (1 << 11)
50#define ATTR_AF (1 << 10)
51#define ATTR_SH(x) ((x) << 8)
52#define ATTR_SH_MASK ATTR_SH(3)
53#define ATTR_SH_NS 0 /* Non-shareable */
54#define ATTR_SH_OS 2 /* Outer-shareable */
55#define ATTR_SH_IS 3 /* Inner-shareable */
56#define ATTR_AP_RW_BIT (1 << 7)
57#define ATTR_AP(x) ((x) << 6)
58#define ATTR_AP_MASK ATTR_AP(3)
59#define ATTR_AP_RW (0 << 1)
60#define ATTR_AP_RO (1 << 1)
61#define ATTR_AP_USER (1 << 0)
62#define ATTR_NS (1 << 5)
63#define ATTR_IDX(x) ((x) << 2)
64#define ATTR_IDX_MASK (7 << 2)
65
|
66#define ATTR_DESCR_MASK 3
67
68/* Level 0 table, 512GiB per entry */
69#define L0_SHIFT 39
70#define L0_INVAL 0x0 /* An invalid address */
71#define L0_BLOCK 0x1 /* A block */
72 /* 0x2 also marks an invalid address */
73#define L0_TABLE 0x3 /* A next-level table */
74
75/* Level 1 table, 1GiB per entry */
76#define L1_SHIFT 30
77#define L1_SIZE (1 << L1_SHIFT)
78#define L1_OFFSET (L1_SIZE - 1)
79#define L1_INVAL L0_INVAL
80#define L1_BLOCK L0_BLOCK
81#define L1_TABLE L0_TABLE
82
83/* Level 2 table, 2MiB per entry */
84#define L2_SHIFT 21
85#define L2_SIZE (1 << L2_SHIFT)
86#define L2_OFFSET (L2_SIZE - 1)
87#define L2_INVAL L0_INVAL
88#define L2_BLOCK L0_BLOCK
89#define L2_TABLE L0_TABLE
90
91#define L2_BLOCK_MASK UINT64_C(0xffffffe00000)
92
93/* Level 3 table, 4KiB per entry */
94#define L3_SHIFT 12
95#define L3_SIZE (1 << L3_SHIFT)
96#define L3_OFFSET (L3_SIZE - 1)
97#define L3_SHIFT 12
98#define L3_INVAL 0x0
99 /* 0x1 is reserved */
100 /* 0x2 also marks an invalid address */
101#define L3_PAGE 0x3
102
103#define Ln_ENTRIES (1 << 9)
104#define Ln_ADDR_MASK (Ln_ENTRIES - 1)
105#define Ln_TABLE_MASK ((1 << 12) - 1)
106
107#endif /* !_MACHINE_PTE_H_ */
108
109/* End of pte.h */
| 72#define ATTR_DESCR_MASK 3
73
74/* Level 0 table, 512GiB per entry */
75#define L0_SHIFT 39
76#define L0_INVAL 0x0 /* An invalid address */
77#define L0_BLOCK 0x1 /* A block */
78 /* 0x2 also marks an invalid address */
79#define L0_TABLE 0x3 /* A next-level table */
80
81/* Level 1 table, 1GiB per entry */
82#define L1_SHIFT 30
83#define L1_SIZE (1 << L1_SHIFT)
84#define L1_OFFSET (L1_SIZE - 1)
85#define L1_INVAL L0_INVAL
86#define L1_BLOCK L0_BLOCK
87#define L1_TABLE L0_TABLE
88
89/* Level 2 table, 2MiB per entry */
90#define L2_SHIFT 21
91#define L2_SIZE (1 << L2_SHIFT)
92#define L2_OFFSET (L2_SIZE - 1)
93#define L2_INVAL L0_INVAL
94#define L2_BLOCK L0_BLOCK
95#define L2_TABLE L0_TABLE
96
97#define L2_BLOCK_MASK UINT64_C(0xffffffe00000)
98
99/* Level 3 table, 4KiB per entry */
100#define L3_SHIFT 12
101#define L3_SIZE (1 << L3_SHIFT)
102#define L3_OFFSET (L3_SIZE - 1)
103#define L3_SHIFT 12
104#define L3_INVAL 0x0
105 /* 0x1 is reserved */
106 /* 0x2 also marks an invalid address */
107#define L3_PAGE 0x3
108
109#define Ln_ENTRIES (1 << 9)
110#define Ln_ADDR_MASK (Ln_ENTRIES - 1)
111#define Ln_TABLE_MASK ((1 << 12) - 1)
112
113#endif /* !_MACHINE_PTE_H_ */
114
115/* End of pte.h */
|