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18b144ea | 1 | /** @file\r |
2 | Command header of for Debug Agent library instance.\r | |
3 | \r | |
b4ebbaff | 4 | Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>\r |
18b144ea | 5 | This program and the accompanying materials\r |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php.\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #ifndef _DEBUG_AGENT_H_\r | |
16 | #define _DEBUG_AGENT_H_\r | |
17 | \r | |
18 | #include <Register/LocalApic.h>\r | |
19 | \r | |
20 | #include <Guid/DebugAgentGuid.h>\r | |
21 | \r | |
22 | #include <Library/BaseLib.h>\r | |
23 | #include <Library/BaseMemoryLib.h>\r | |
24 | #include <Library/ResetSystemLib.h>\r | |
25 | #include <Library/IoLib.h>\r | |
26 | #include <Library/HobLib.h>\r | |
27 | #include <Library/DebugCommunicationLib.h>\r | |
28 | #include <Library/DebugAgentLib.h>\r | |
29 | #include <Library/PcdLib.h>\r | |
30 | #include <Library/SynchronizationLib.h>\r | |
31 | #include <Library/LocalApicLib.h>\r | |
e2104834 | 32 | #include <Library/DebugLib.h>\r |
b4ebbaff | 33 | #include <Library/TimerLib.h>\r |
93c0bdec | 34 | #include <Library/PrintLib.h>\r |
18b144ea | 35 | \r |
36 | #include <TransferProtocol.h>\r | |
37 | #include <ImageDebugSupport.h>\r | |
38 | \r | |
39 | #include "DebugMp.h"\r | |
40 | #include "DebugTimer.h"\r | |
41 | #include "ArchDebugSupport.h"\r | |
42 | \r | |
18b144ea | 43 | #define DEBUG_INT1_VECTOR 1\r |
44 | #define DEBUG_INT3_VECTOR 3\r | |
45 | #define DEBUG_TIMER_VECTOR 32\r | |
46 | #define DEBUG_MAILBOX_VECTOR 33\r | |
47 | \r | |
48 | #define SOFT_INTERRUPT_SIGNATURE SIGNATURE_32('S','O','F','T')\r | |
49 | #define SYSTEM_RESET_SIGNATURE SIGNATURE_32('S','Y','S','R')\r | |
50 | #define MEMORY_READY_SIGNATURE SIGNATURE_32('M','E','M','R')\r | |
51 | \r | |
52 | extern UINTN Exception0Handle;\r | |
53 | extern UINTN TimerInterruptHandle;\r | |
54 | extern UINT16 ExceptionStubHeaderSize;\r | |
55 | \r | |
93c0bdec | 56 | //\r |
57 | // CPU exception information issued by debug agent\r | |
58 | //\r | |
59 | typedef struct {\r | |
60 | //\r | |
61 | // This field is used to save CPU content before executing HOST command\r | |
62 | //\r | |
63 | BASE_LIBRARY_JUMP_BUFFER JumpBuffer;\r | |
64 | //\r | |
65 | // This filed returens the exception information issued by HOST command\r | |
66 | //\r | |
67 | DEBUG_DATA_RESPONSE_GET_EXCEPTION ExceptionContent;\r | |
68 | } DEBUG_AGENT_EXCEPTION_BUFFER;\r | |
18b144ea | 69 | \r |
70 | #pragma pack(1)\r | |
93c0bdec | 71 | typedef struct {\r |
72 | //\r | |
73 | // Lower 32 bits to store the status of DebugAgent\r | |
74 | //\r | |
75 | UINT32 HostAttached : 1; // 1: HOST is attached\r | |
76 | UINT32 AgentInProgress : 1; // 1: Debug Agent is communicating with HOST\r | |
77 | UINT32 MemoryReady : 1; // 1: Memory is ready\r | |
78 | UINT32 SteppingFlag : 1; // 1: Agent is running stepping command\r | |
79 | UINT32 Reserved1 : 28;\r | |
80 | \r | |
81 | //\r | |
82 | // Higher 32bits to control the behavior of DebugAgent\r | |
83 | //\r | |
84 | UINT32 BreakOnNextSmi : 1; // 1: Break on next SMI\r | |
85 | UINT32 PrintErrorLevel : 8; // Bitmask of print error level for debug message\r | |
86 | UINT32 Reserved2 : 23;\r | |
87 | } DEBUG_AGENT_FLAG;\r | |
88 | \r | |
18b144ea | 89 | typedef struct {\r |
90 | DEBUG_AGENT_FLAG DebugFlag;\r | |
91 | UINT64 DebugPortHandle;\r | |
93c0bdec | 92 | //\r |
93 | // Pointer to DEBUG_AGENT_EXCEPTION_BUFFER\r | |
94 | //\r | |
95 | UINT64 ExceptionBufferPointer;\r | |
18b144ea | 96 | } DEBUG_AGENT_MAILBOX;\r |
97 | #pragma pack()\r | |
98 | \r | |
99 | typedef union {\r | |
100 | struct {\r | |
101 | UINT32 LimitLow : 16;\r | |
102 | UINT32 BaseLow : 16;\r | |
103 | UINT32 BaseMid : 8;\r | |
104 | UINT32 Type : 4;\r | |
105 | UINT32 System : 1;\r | |
106 | UINT32 Dpl : 2;\r | |
107 | UINT32 Present : 1;\r | |
108 | UINT32 LimitHigh : 4;\r | |
109 | UINT32 Software : 1;\r | |
110 | UINT32 Reserved : 1;\r | |
111 | UINT32 DefaultSize : 1;\r | |
112 | UINT32 Granularity : 1;\r | |
113 | UINT32 BaseHigh : 8;\r | |
114 | } Bits;\r | |
115 | UINT64 Uint64;\r | |
116 | } IA32_GDT;\r | |
117 | \r | |
118 | /**\r | |
119 | Caller provided function to be invoked at the end of DebugPortInitialize().\r | |
120 | \r | |
121 | Refer to the descrption for DebugPortInitialize() for more details.\r | |
122 | \r | |
123 | @param[in] Context The first input argument of DebugPortInitialize().\r | |
124 | @param[in] DebugPortHandle Debug port handle created by Debug Communication Libary.\r | |
125 | \r | |
126 | **/\r | |
127 | VOID\r | |
128 | EFIAPI\r | |
129 | InitializeDebugAgentPhase2 (\r | |
130 | IN VOID *Context,\r | |
131 | IN DEBUG_PORT_HANDLE DebugPortHandle\r | |
132 | );\r | |
133 | \r | |
134 | /**\r | |
135 | Initialize IDT entries to support source level debug.\r | |
136 | \r | |
137 | **/\r | |
138 | VOID\r | |
139 | InitializeDebugIdt (\r | |
140 | VOID\r | |
141 | );\r | |
142 | \r | |
18b144ea | 143 | /**\r |
144 | Read register value from saved CPU context.\r | |
145 | \r | |
146 | @param[in] CpuContext Pointer to saved CPU context.\r | |
147 | @param[in] Index Register index value.\r | |
18b144ea | 148 | @param[in] Width Data width to read.\r |
149 | \r | |
150 | @return The address of register value.\r | |
151 | \r | |
152 | **/\r | |
153 | UINT8 *\r | |
154 | ArchReadRegisterBuffer (\r | |
155 | IN DEBUG_CPU_CONTEXT *CpuContext,\r | |
156 | IN UINT8 Index,\r | |
18b144ea | 157 | IN UINT8 *Width\r |
158 | );\r | |
159 | \r | |
160 | /**\r | |
161 | Send packet with response data to HOST.\r | |
162 | \r | |
18b144ea | 163 | @param[in] Data Pointer to response data buffer.\r |
164 | @param[in] DataSize Size of response data in byte.\r | |
165 | \r | |
166 | @retval RETURN_SUCCESS Response data was sent successfully.\r | |
167 | @retval RETURN_DEVICE_ERROR Cannot receive DEBUG_COMMAND_OK from HOST.\r | |
168 | \r | |
169 | **/\r | |
170 | RETURN_STATUS\r | |
171 | SendDataResponsePacket (\r | |
18b144ea | 172 | IN UINT8 *Data,\r |
173 | IN UINT16 DataSize\r | |
174 | );\r | |
175 | \r | |
176 | /**\r | |
93c0bdec | 177 | Check if HOST is attached based on Mailbox.\r |
18b144ea | 178 | \r |
93c0bdec | 179 | @retval TRUE HOST is attached.\r |
180 | @retval FALSE HOST is not attached.\r | |
18b144ea | 181 | \r |
182 | **/\r | |
93c0bdec | 183 | BOOLEAN\r |
184 | IsHostAttached (\r | |
185 | VOID\r | |
18b144ea | 186 | );\r |
187 | \r | |
188 | /**\r | |
93c0bdec | 189 | Get Debug Agent Mailbox pointer.\r |
18b144ea | 190 | \r |
93c0bdec | 191 | @return Mailbox pointer.\r |
18b144ea | 192 | \r |
193 | **/\r | |
93c0bdec | 194 | DEBUG_AGENT_MAILBOX *\r |
195 | GetMailboxPointer (\r | |
196 | VOID\r | |
18b144ea | 197 | );\r |
198 | \r | |
199 | /**\r | |
93c0bdec | 200 | Get debug port handle.\r |
18b144ea | 201 | \r |
93c0bdec | 202 | @return Debug port handle.\r |
18b144ea | 203 | \r |
204 | **/\r | |
93c0bdec | 205 | DEBUG_PORT_HANDLE\r |
206 | GetDebugPortHandle (\r | |
207 | VOID\r | |
18b144ea | 208 | );\r |
209 | \r | |
210 | /**\r | |
93c0bdec | 211 | Read the Attach/Break-in symbols from the debug port.\r |
18b144ea | 212 | \r |
93c0bdec | 213 | @param[in] Handle Pointer to Debug Port handle.\r |
214 | @param[out] BreakSymbol Returned break symbol.\r | |
18b144ea | 215 | \r |
93c0bdec | 216 | @retval EFI_SUCCESS Read the symbol in BreakSymbol.\r |
217 | @retval EFI_NOT_FOUND No read the break symbol.\r | |
18b144ea | 218 | \r |
219 | **/\r | |
93c0bdec | 220 | EFI_STATUS\r |
221 | DebugReadBreakSymbol (\r | |
222 | IN DEBUG_PORT_HANDLE Handle,\r | |
223 | OUT UINT8 *BreakSymbol\r | |
18b144ea | 224 | );\r |
225 | \r | |
226 | /**\r | |
93c0bdec | 227 | Prints a debug message to the debug port if the specified error level is enabled.\r |
18b144ea | 228 | \r |
93c0bdec | 229 | If any bit in ErrorLevel is also set in Mainbox, then print the message specified\r |
230 | by Format and the associated variable argument list to the debug port.\r | |
18b144ea | 231 | \r |
93c0bdec | 232 | @param[in] ErrorLevel The error level of the debug message.\r |
233 | @param[in] Format Format string for the debug message to print.\r | |
234 | @param[in] ... Variable argument list whose contents are accessed \r | |
235 | based on the format string specified by Format.\r | |
18b144ea | 236 | \r |
237 | **/\r | |
93c0bdec | 238 | VOID\r |
239 | EFIAPI\r | |
240 | DebugAgentMsgPrint (\r | |
241 | IN UINT8 ErrorLevel,\r | |
242 | IN CHAR8 *Format,\r | |
243 | ...\r | |
18b144ea | 244 | );\r |
18b144ea | 245 | #endif\r |
246 | \r |