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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
/** @file
Implementation of Generic Memory Test Protocol which does not perform real memory test.
Copyright (c) 2006 - 2008, Intel Corporation. <BR>
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "NullMemoryTest.h"
UINT64 mTestedSystemMemory = 0;
UINT64 mTotalSystemMemory = 0;
EFI_HANDLE mGenericMemoryTestHandle;
EFI_GENERIC_MEMORY_TEST_PROTOCOL mGenericMemoryTest = {
InitializeMemoryTest,
GenPerformMemoryTest,
GenMemoryTestFinished,
GenCompatibleRangeTest
};
/**
Entry point of the NULL memory test driver.
This function is the entry point of the NULL memory test driver.
It simply installs the Generic Memory Test Protocol.
@param ImageHandle The firmware allocated handle for the EFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS Generic Memory Test Protocol is successfully installed.
**/
EFI_STATUS
EFIAPI
GenericMemoryTestEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
Status = gBS->InstallProtocolInterface (
&mGenericMemoryTestHandle,
&gEfiGenericMemTestProtocolGuid,
EFI_NATIVE_INTERFACE,
&mGenericMemoryTest
);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}
/**
Initialize the generic memory test.
This function implements EFI_GENERIC_MEMORY_TEST_PROTOCOL.MemoryTestInit.
It simply promotes untested reserved memory to system memory without real test.
@param This Protocol instance pointer.
@param Level The coverage level of the memory test.
@param RequireSoftECCInit Indicate if the memory need software ECC init.
@retval EFI_SUCCESS The generic memory test initialized correctly.
@retval EFI_NO_MEDIA There is not any non-tested memory found, in this
function if not any non-tesed memory found means
that the memory test driver have not detect any
non-tested extended memory of current system.
**/
EFI_STATUS
EFIAPI
InitializeMemoryTest (
IN EFI_GENERIC_MEMORY_TEST_PROTOCOL *This,
IN EXTENDMEM_COVERAGE_LEVEL Level,
OUT BOOLEAN *RequireSoftECCInit
)
{
UINTN NumberOfDescriptors;
EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap;
UINTN Index;
gDS->GetMemorySpaceMap (&NumberOfDescriptors, &MemorySpaceMap);
for (Index = 0; Index < NumberOfDescriptors; Index++) {
if (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeReserved &&
(MemorySpaceMap[Index].Capabilities & (EFI_MEMORY_PRESENT | EFI_MEMORY_INITIALIZED | EFI_MEMORY_TESTED)) ==
(EFI_MEMORY_PRESENT | EFI_MEMORY_INITIALIZED)
) {
//
// For those reserved memory that have not been tested, simply promote to system memory.
//
gDS->RemoveMemorySpace (
MemorySpaceMap[Index].BaseAddress,
MemorySpaceMap[Index].Length
);
gDS->AddMemorySpace (
EfiGcdMemoryTypeSystemMemory,
MemorySpaceMap[Index].BaseAddress,
MemorySpaceMap[Index].Length,
MemorySpaceMap[Index].Capabilities &~
(EFI_MEMORY_PRESENT | EFI_MEMORY_INITIALIZED | EFI_MEMORY_TESTED | EFI_MEMORY_RUNTIME)
);
mTestedSystemMemory += MemorySpaceMap[Index].Length;
mTotalSystemMemory += MemorySpaceMap[Index].Length;
} else if (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeSystemMemory) {
mTotalSystemMemory += MemorySpaceMap[Index].Length;
}
}
FreePool (MemorySpaceMap);
*RequireSoftECCInit = FALSE;
return EFI_SUCCESS;
}
/**
Perform the memory test.
This function implements EFI_GENERIC_MEMORY_TEST_PROTOCOL.PerformMemoryTest.
It simply returns EFI_NOT_FOUND.
@param This Protocol instance pointer.
@param TestedMemorySize Return the tested extended memory size.
@param TotalMemorySize Return the whole system physical memory size, this
value may be changed if in some case some error
DIMMs be disabled.
@param ErrorOut Any time the memory error occurs, this will be
TRUE.
@param IfTestAbort Indicate if the user press "ESC" to skip the memory
test.
@retval EFI_SUCCESS One block of memory test ok, the block size is hide
internally.
@retval EFI_NOT_FOUND Indicate all the non-tested memory blocks have
already go through.
@retval EFI_DEVICE_ERROR Mis-compare error, and no agent can handle it
**/
EFI_STATUS
EFIAPI
GenPerformMemoryTest (
IN EFI_GENERIC_MEMORY_TEST_PROTOCOL *This,
IN OUT UINT64 *TestedMemorySize,
OUT UINT64 *TotalMemorySize,
OUT BOOLEAN *ErrorOut,
IN BOOLEAN TestAbort
)
{
*ErrorOut = FALSE;
*TestedMemorySize = mTestedSystemMemory;
*TotalMemorySize = mTotalSystemMemory;
return EFI_NOT_FOUND;
}
/**
The memory test finished.
This function implements EFI_GENERIC_MEMORY_TEST_PROTOCOL.Finished.
It simply returns EFI_SUCCESS.
@param This Protocol instance pointer.
@retval EFI_SUCCESS Successful free all the generic memory test driver
allocated resource and notify to platform memory
test driver that memory test finished.
**/
EFI_STATUS
EFIAPI
GenMemoryTestFinished (
IN EFI_GENERIC_MEMORY_TEST_PROTOCOL *This
)
{
return EFI_SUCCESS;
}
/**
Provide capability to test compatible range which used by some special
driver required using memory range before BDS perform memory test.
This function implements EFI_GENERIC_MEMORY_TEST_PROTOCOL.CompatibleRangeTest.
It simply sets the memory range to system memory.
@param This Protocol instance pointer.
@param StartAddress The start address of the memory range.
@param Length The memory range's length.
@retval EFI_SUCCESS The compatible memory range pass the memory test.
@retval EFI_INVALID_PARAMETER The compatible memory range must be below 16M.
**/
EFI_STATUS
EFIAPI
GenCompatibleRangeTest (
IN EFI_GENERIC_MEMORY_TEST_PROTOCOL *This,
IN EFI_PHYSICAL_ADDRESS StartAddress,
IN UINT64 Length
)
{
EFI_GCD_MEMORY_SPACE_DESCRIPTOR Descriptor;
gDS->GetMemorySpaceDescriptor (StartAddress, &Descriptor);
gDS->RemoveMemorySpace (StartAddress, Length);
gDS->AddMemorySpace (
EfiGcdMemoryTypeSystemMemory,
StartAddress,
Length,
Descriptor.Capabilities &~(EFI_MEMORY_PRESENT | EFI_MEMORY_INITIALIZED | EFI_MEMORY_TESTED | EFI_MEMORY_RUNTIME)
);
return EFI_SUCCESS;
}
|
