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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
// IBM_PROLOG_BEGIN_TAG
// This is an automatically generated prolog.
//
// $Source: src/kernel/vmmmgr.C $
//
// IBM CONFIDENTIAL
//
// COPYRIGHT International Business Machines Corp. 2010 - 2011
//
// p1
//
// Object Code Only (OCO) source materials
// Licensed Internal Code Source Materials
// IBM HostBoot Licensed Internal Code
//
// The source code for this program is not published or other-
// wise divested of its trade secrets, irrespective of what has
// been deposited with the U.S. Copyright Office.
//
// Origin: 30
//
// IBM_PROLOG_END
#include <limits.h>
#include <util/singleton.H>
#include <kernel/vmmmgr.H>
#include <kernel/console.H>
#include <arch/ppc.H>
#include <kernel/ptmgr.H>
#include <kernel/segmentmgr.H>
#include <kernel/basesegment.H>
#include <kernel/stacksegment.H>
#include <kernel/devicesegment.H>
extern void* data_load_address;
VmmManager::VmmManager() : lock()
{
}
void VmmManager::init()
{
printk("Starting VMM...\n");
VmmManager& v = Singleton<VmmManager>::instance();
BaseSegment::init();
StackSegment::init();
DeviceSegment::init();
SegmentManager::initSLB();
v.initPTEs();
v.initSDR1();
printk("...done.\n");
};
void VmmManager::init_slb()
{
VmmManager& v = Singleton<VmmManager>::instance();
SegmentManager::initSLB();
v.initSDR1();
}
bool VmmManager::pteMiss(task_t* t, uint64_t effAddr)
{
return Singleton<VmmManager>::instance()._pteMiss(t, effAddr);
}
uint64_t VmmManager::findPhysicalAddress(uint64_t i_vaddr)
{
return Singleton<VmmManager>::instance()._findPhysicalAddress(i_vaddr);
}
/**
* STATIC
* @brief DEPRECATED
*/
void* VmmManager::mmioMap(void* ra, size_t pages)
{
return DeviceSegment::mmioMap(ra, pages);
}
/**
* STATIC
* @brief DEPRECATED
*/
int VmmManager::mmioUnmap(void* ea, size_t pages)
{
return DeviceSegment::mmioUnmap(ea, pages);
}
/**
* STATIC
* @brief A facade to map a device into the device segment(2TB)
*/
void* VmmManager::devMap(void* ra, SEG_DATA_SIZES i_devDataSize)
{
return DeviceSegment::devMap(ra, i_devDataSize);
}
/**
* STATIC
* @brief A facade to unmap a device from the device segment(2TB)
*/
int VmmManager::devUnmap(void* ea)
{
return DeviceSegment::devUnmap(ea);
}
void VmmManager::initPTEs()
{
// Initialize and invalidate the page table
PageTableManager::init();
// There is no need to add PTE entries because the PTE-miss page fault
// handler will add as-needed.
}
void VmmManager::initSDR1()
{
// HTABORG, HTABSIZE = 0 (11 bits, 256k table)
register uint64_t sdr1 = (uint64_t)HTABORG;
asm volatile("mtsdr1 %0" :: "r"(sdr1) : "memory");
}
bool VmmManager::_pteMiss(task_t* t, uint64_t effAddr)
{
lock.lock();
bool rc = SegmentManager::handlePageFault(t, effAddr);
lock.unlock();
return rc;
}
int VmmManager::mmAllocBlock(MessageQueue* i_mq,void* i_va,uint64_t i_size)
{
return BaseSegment::mmAllocBlock(i_mq,i_va,i_size);
}
Spinlock* VmmManager::getLock()
{
return &Singleton<VmmManager>::instance().lock;
}
uint64_t VmmManager::_findPhysicalAddress(uint64_t i_vaddr)
{
uint64_t paddr = 0;
lock.lock();
paddr = SegmentManager::findPhysicalAddress(i_vaddr);
lock.unlock();
return paddr;
}
int VmmManager::mmRemovePages(PAGE_REMOVAL_OPS i_op, void* i_vaddr,
uint64_t i_size)
{
return 0;
}
int VmmManager::mmSetPermission(void* i_va, uint64_t i_size, PAGE_PERMISSIONS i_access_type)
{
return Singleton<VmmManager>::instance()._mmSetPermission(i_va, i_size, i_access_type);
}
int VmmManager::_mmSetPermission(void* i_va, uint64_t i_size, PAGE_PERMISSIONS i_access_type)
{
int rc = 1;
lock.lock();
rc = BaseSegment::mmSetPermission(i_va, i_size, i_access_type);
lock.unlock();
return rc;
}
|
