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
|
/** @file
Status Code Handler Driver which produces general handlers and hook them
onto the DXE status code router.
Copyright (c) 2006 - 2020, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "StatusCodeHandlerRuntimeDxe.h"
EFI_EVENT mVirtualAddressChangeEvent = NULL;
EFI_RSC_HANDLER_PROTOCOL *mRscHandlerProtocol = NULL;
/**
Unregister status code callback functions only available at boot time from
report status code router when exiting boot services.
**/
VOID
EFIAPI
UnregisterSerialBootTimeHandlers (
VOID
)
{
if (PcdGetBool (PcdStatusCodeUseSerial)) {
mRscHandlerProtocol->Unregister (SerialStatusCodeReportWorker);
}
}
/**
Virtual address change notification call back. It converts global pointer
to virtual address.
@param Event Event whose notification function is being invoked.
@param Context Pointer to the notification function's context, which is
always zero in current implementation.
**/
VOID
EFIAPI
VirtualAddressChangeCallBack (
IN EFI_EVENT Event,
IN VOID *Context
)
{
//
// Convert memory status code table to virtual address;
//
EfiConvertPointer (
0,
(VOID **)&mRtMemoryStatusCodeTable
);
}
/**
Dispatch initialization request to sub status code devices based on
customized feature flags.
**/
VOID
InitializationDispatcherWorker (
VOID
)
{
EFI_PEI_HOB_POINTERS Hob;
EFI_STATUS Status;
MEMORY_STATUSCODE_PACKET_HEADER *PacketHeader;
MEMORY_STATUSCODE_RECORD *Record;
UINTN Index;
UINTN MaxRecordNumber;
//
// If enable UseSerial, then initialize serial port.
// if enable UseRuntimeMemory, then initialize runtime memory status code worker.
//
if (PcdGetBool (PcdStatusCodeUseSerial)) {
//
// Call Serial Port Lib API to initialize serial port.
//
Status = SerialPortInitialize ();
ASSERT_EFI_ERROR (Status);
}
if (PcdGetBool (PcdStatusCodeUseMemory)) {
Status = RtMemoryStatusCodeInitializeWorker ();
ASSERT_EFI_ERROR (Status);
}
//
// Replay Status code which saved in GUID'ed HOB to all supported devices.
//
if (FeaturePcdGet (PcdStatusCodeReplayIn)) {
//
// Journal GUID'ed HOBs to find all record entry, if found,
// then output record to support replay device.
//
Hob.Raw = GetFirstGuidHob (&gMemoryStatusCodeRecordGuid);
if (Hob.Raw != NULL) {
PacketHeader = (MEMORY_STATUSCODE_PACKET_HEADER *)GET_GUID_HOB_DATA (Hob.Guid);
Record = (MEMORY_STATUSCODE_RECORD *)(PacketHeader + 1);
MaxRecordNumber = (UINTN)PacketHeader->RecordIndex;
if (PacketHeader->PacketIndex > 0) {
//
// Record has been wrapped around. So, record number has arrived at max number.
//
MaxRecordNumber = (UINTN)PacketHeader->MaxRecordsNumber;
}
for (Index = 0; Index < MaxRecordNumber; Index++) {
//
// Dispatch records to devices based on feature flag.
//
if (PcdGetBool (PcdStatusCodeUseSerial)) {
SerialStatusCodeReportWorker (
Record[Index].CodeType,
Record[Index].Value,
Record[Index].Instance,
NULL,
NULL
);
}
if (PcdGetBool (PcdStatusCodeUseMemory)) {
RtMemoryStatusCodeReportWorker (
Record[Index].CodeType,
Record[Index].Value,
Record[Index].Instance,
NULL,
NULL
);
}
}
}
}
}
/**
Entry point of DXE Status Code Driver.
This function is the entry point of this DXE Status Code Driver.
It initializes registers status code handlers, and registers event for EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE.
@param ImageHandle The firmware allocated handle for the EFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
**/
EFI_STATUS
EFIAPI
StatusCodeHandlerRuntimeDxeEntry (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
Status = gBS->LocateProtocol (
&gEfiRscHandlerProtocolGuid,
NULL,
(VOID **)&mRscHandlerProtocol
);
ASSERT_EFI_ERROR (Status);
//
// Dispatch initialization request to supported devices
//
InitializationDispatcherWorker ();
if (PcdGetBool (PcdStatusCodeUseSerial)) {
mRscHandlerProtocol->Register (SerialStatusCodeReportWorker, TPL_HIGH_LEVEL);
}
if (PcdGetBool (PcdStatusCodeUseMemory)) {
mRscHandlerProtocol->Register (RtMemoryStatusCodeReportWorker, TPL_HIGH_LEVEL);
}
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
VirtualAddressChangeCallBack,
NULL,
&gEfiEventVirtualAddressChangeGuid,
&mVirtualAddressChangeEvent
);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}
|
