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18b144ea | 1 | /** @file\r |
2 | Command header of for Debug Agent library instance.\r | |
3 | \r | |
b422b62c | 4 | Copyright (c) 2010 - 2013, 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 | |
18b144ea | 19 | #include <Guid/DebugAgentGuid.h>\r |
8cc26df4 JF |
20 | #include <Guid/VectorHandoffTable.h>\r |
21 | #include <Ppi/VectorHandoffInfo.h>\r | |
18b144ea | 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 |
b422b62c | 35 | #include <Library/PeCoffGetEntryPointLib.h>\r |
36 | #include <Library/PeCoffExtraActionLib.h>\r | |
18b144ea | 37 | \r |
38 | #include <TransferProtocol.h>\r | |
39 | #include <ImageDebugSupport.h>\r | |
40 | \r | |
41 | #include "DebugMp.h"\r | |
42 | #include "DebugTimer.h"\r | |
43 | #include "ArchDebugSupport.h"\r | |
8cc26df4 | 44 | #include "DebugException.h"\r |
18b144ea | 45 | \r |
b422b62c | 46 | //\r |
47 | // These macros may be already defined in DebugAgentLib.h\r | |
48 | //\r | |
49 | #define DEBUG_AGENT_INIT_PEI 9\r | |
50 | #define DEBUG_AGENT_INIT_DXE_LOAD 10\r | |
51 | #define DEBUG_AGENT_INIT_DXE_UNLOAD 11\r | |
52 | #define DEBUG_AGENT_INIT_THUNK_PEI_IA32TOX64 12\r | |
53 | \r | |
8cc26df4 JF |
54 | #define DEBUG_INT1_VECTOR DEBUG_EXCEPT_DEBUG\r |
55 | #define DEBUG_INT3_VECTOR DEBUG_EXCEPT_BREAKPOINT\r | |
18b144ea | 56 | #define DEBUG_TIMER_VECTOR 32\r |
57 | #define DEBUG_MAILBOX_VECTOR 33\r | |
58 | \r | |
b422b62c | 59 | //\r |
60 | // Timeout value for reading packet (unit is microsecond)\r | |
61 | //\r | |
62 | #define READ_PACKET_TIMEOUT (500 * 1000)\r | |
63 | \r | |
18b144ea | 64 | #define SOFT_INTERRUPT_SIGNATURE SIGNATURE_32('S','O','F','T')\r |
65 | #define SYSTEM_RESET_SIGNATURE SIGNATURE_32('S','Y','S','R')\r | |
66 | #define MEMORY_READY_SIGNATURE SIGNATURE_32('M','E','M','R')\r | |
67 | \r | |
68 | extern UINTN Exception0Handle;\r | |
69 | extern UINTN TimerInterruptHandle;\r | |
19ee4a90 | 70 | extern UINT32 ExceptionStubHeaderSize;\r |
b422b62c | 71 | extern BOOLEAN mSkipBreakpoint;\r |
8cc26df4 JF |
72 | extern EFI_VECTOR_HANDOFF_INFO mVectorHandoffInfoDebugAgent[];\r |
73 | extern UINTN mVectorHandoffInfoCount;\r | |
b422b62c | 74 | \r |
93c0bdec | 75 | //\r |
76 | // CPU exception information issued by debug agent\r | |
77 | //\r | |
78 | typedef struct {\r | |
79 | //\r | |
80 | // This field is used to save CPU content before executing HOST command\r | |
81 | //\r | |
82 | BASE_LIBRARY_JUMP_BUFFER JumpBuffer;\r | |
83 | //\r | |
ff8ad584 | 84 | // This field returns the exception information issued by the HOST command\r |
93c0bdec | 85 | //\r |
86 | DEBUG_DATA_RESPONSE_GET_EXCEPTION ExceptionContent;\r | |
87 | } DEBUG_AGENT_EXCEPTION_BUFFER;\r | |
18b144ea | 88 | \r |
b422b62c | 89 | #define DEBUG_AGENT_FLAG_HOST_ATTACHED BIT0\r |
90 | #define DEBUG_AGENT_FLAG_AGENT_IN_PROGRESS BIT1\r | |
91 | #define DEBUG_AGENT_FLAG_MEMORY_READY BIT2\r | |
92 | #define DEBUG_AGENT_FLAG_STEPPING BIT3\r | |
93 | #define DEBUG_AGENT_FLAG_CHECK_MAILBOX_IN_HOB BIT4\r | |
0a488765 | 94 | #define DEBUG_AGENT_FLAG_INIT_ARCH BIT5|BIT6\r |
b422b62c | 95 | #define DEBUG_AGENT_FLAG_BREAK_ON_NEXT_SMI BIT32\r |
96 | #define DEBUG_AGENT_FLAG_PRINT_ERROR_LEVEL (BIT33|BIT34|BIT35|BIT36)\r | |
97 | #define DEBUG_AGENT_FLAG_BREAK_BOOT_SCRIPT BIT37\r | |
98 | \r | |
99 | #define DEBUG_MAILBOX_DEBUG_FLAG_INDEX 1\r | |
100 | #define DEBUG_MAILBOX_DEBUG_PORT_HANDLE_INDEX 2\r | |
101 | #define DEBUG_MAILBOX_EXCEPTION_BUFFER_POINTER_INDEX 3\r | |
102 | #define DEBUG_MAILBOX_LAST_ACK 4\r | |
103 | #define DEBUG_MAILBOX_SEQUENCE_NO_INDEX 5\r | |
104 | #define DEBUG_MAILBOX_HOST_SEQUENCE_NO_INDEX 6\r | |
93c0bdec | 105 | \r |
b422b62c | 106 | #pragma pack(1)\r |
107 | typedef union {\r | |
108 | struct {\r | |
109 | //\r | |
110 | // Lower 32 bits to store the status of DebugAgent\r | |
111 | //\r | |
112 | UINT32 HostAttached : 1; // 1: HOST is attached\r | |
113 | UINT32 AgentInProgress : 1; // 1: Debug Agent is communicating with HOST\r | |
114 | UINT32 MemoryReady : 1; // 1: Memory is ready\r | |
115 | UINT32 SteppingFlag : 1; // 1: Agent is running stepping command\r | |
116 | UINT32 CheckMailboxInHob : 1; // 1: Need to check mailbox saved in HOB\r | |
0a488765 | 117 | UINT32 InitArch : 2; // value of DEBUG_DATA_RESPONSE_ARCH_MODE\r |
118 | UINT32 Reserved1 : 25;\r | |
b422b62c | 119 | //\r |
120 | // Higher 32bits to control the behavior of DebugAgent\r | |
121 | //\r | |
122 | UINT32 BreakOnNextSmi : 1; // 1: Break on next SMI\r | |
123 | UINT32 PrintErrorLevel : 4; // Bitmask of print error level for debug message\r | |
124 | UINT32 BreakOnBootScript : 1; // 1: Break before executing boot script \r | |
125 | UINT32 Reserved2 : 26;\r | |
126 | } Bits;\r | |
127 | UINT64 Uint64;\r | |
93c0bdec | 128 | } DEBUG_AGENT_FLAG;\r |
129 | \r | |
18b144ea | 130 | typedef struct {\r |
131 | DEBUG_AGENT_FLAG DebugFlag;\r | |
132 | UINT64 DebugPortHandle;\r | |
93c0bdec | 133 | //\r |
134 | // Pointer to DEBUG_AGENT_EXCEPTION_BUFFER\r | |
135 | //\r | |
136 | UINT64 ExceptionBufferPointer;\r | |
b422b62c | 137 | UINT8 LastAck; // The last ack packet type\r |
138 | UINT8 SequenceNo;\r | |
139 | UINT8 HostSequenceNo;\r | |
140 | UINT8 CheckSum; // Mailbox checksum\r | |
141 | UINT8 ToBeCheckSum; // To be Mailbox checksum at the next\r | |
18b144ea | 142 | } DEBUG_AGENT_MAILBOX;\r |
143 | #pragma pack()\r | |
144 | \r | |
b422b62c | 145 | ///\r |
146 | /// Byte packed structure for an IA-32 Interrupt Gate Descriptor.\r | |
147 | ///\r | |
148 | typedef union {\r | |
149 | struct {\r | |
150 | UINT32 OffsetLow:16; ///< Offset bits 15..0.\r | |
151 | UINT32 Selector:16; ///< Selector.\r | |
152 | UINT32 Reserved_0:8; ///< Reserved.\r | |
153 | UINT32 GateType:8; ///< Gate Type. See #defines above.\r | |
154 | UINT32 OffsetHigh:16; ///< Offset bits 31..16.\r | |
155 | } Bits;\r | |
156 | UINT64 Uint64;\r | |
157 | } IA32_IDT_ENTRY;\r | |
158 | \r | |
159 | \r | |
18b144ea | 160 | typedef union {\r |
161 | struct {\r | |
162 | UINT32 LimitLow : 16;\r | |
163 | UINT32 BaseLow : 16;\r | |
164 | UINT32 BaseMid : 8;\r | |
165 | UINT32 Type : 4;\r | |
166 | UINT32 System : 1;\r | |
167 | UINT32 Dpl : 2;\r | |
168 | UINT32 Present : 1;\r | |
169 | UINT32 LimitHigh : 4;\r | |
170 | UINT32 Software : 1;\r | |
171 | UINT32 Reserved : 1;\r | |
172 | UINT32 DefaultSize : 1;\r | |
173 | UINT32 Granularity : 1;\r | |
174 | UINT32 BaseHigh : 8;\r | |
175 | } Bits;\r | |
176 | UINT64 Uint64;\r | |
177 | } IA32_GDT;\r | |
178 | \r | |
18b144ea | 179 | /**\r |
180 | Initialize IDT entries to support source level debug.\r | |
181 | \r | |
182 | **/\r | |
183 | VOID\r | |
184 | InitializeDebugIdt (\r | |
185 | VOID\r | |
186 | );\r | |
187 | \r | |
18b144ea | 188 | /**\r |
189 | Read register value from saved CPU context.\r | |
190 | \r | |
191 | @param[in] CpuContext Pointer to saved CPU context.\r | |
192 | @param[in] Index Register index value.\r | |
18b144ea | 193 | @param[in] Width Data width to read.\r |
194 | \r | |
195 | @return The address of register value.\r | |
196 | \r | |
197 | **/\r | |
198 | UINT8 *\r | |
199 | ArchReadRegisterBuffer (\r | |
200 | IN DEBUG_CPU_CONTEXT *CpuContext,\r | |
201 | IN UINT8 Index,\r | |
18b144ea | 202 | IN UINT8 *Width\r |
203 | );\r | |
204 | \r | |
205 | /**\r | |
206 | Send packet with response data to HOST.\r | |
207 | \r | |
18b144ea | 208 | @param[in] Data Pointer to response data buffer.\r |
209 | @param[in] DataSize Size of response data in byte.\r | |
210 | \r | |
211 | @retval RETURN_SUCCESS Response data was sent successfully.\r | |
212 | @retval RETURN_DEVICE_ERROR Cannot receive DEBUG_COMMAND_OK from HOST.\r | |
213 | \r | |
214 | **/\r | |
215 | RETURN_STATUS\r | |
216 | SendDataResponsePacket (\r | |
18b144ea | 217 | IN UINT8 *Data,\r |
218 | IN UINT16 DataSize\r | |
219 | );\r | |
220 | \r | |
221 | /**\r | |
93c0bdec | 222 | Check if HOST is attached based on Mailbox.\r |
18b144ea | 223 | \r |
93c0bdec | 224 | @retval TRUE HOST is attached.\r |
225 | @retval FALSE HOST is not attached.\r | |
18b144ea | 226 | \r |
227 | **/\r | |
93c0bdec | 228 | BOOLEAN\r |
229 | IsHostAttached (\r | |
230 | VOID\r | |
18b144ea | 231 | );\r |
232 | \r | |
233 | /**\r | |
93c0bdec | 234 | Get Debug Agent Mailbox pointer.\r |
18b144ea | 235 | \r |
93c0bdec | 236 | @return Mailbox pointer.\r |
18b144ea | 237 | \r |
238 | **/\r | |
93c0bdec | 239 | DEBUG_AGENT_MAILBOX *\r |
240 | GetMailboxPointer (\r | |
241 | VOID\r | |
18b144ea | 242 | );\r |
243 | \r | |
244 | /**\r | |
93c0bdec | 245 | Get debug port handle.\r |
18b144ea | 246 | \r |
93c0bdec | 247 | @return Debug port handle.\r |
18b144ea | 248 | \r |
249 | **/\r | |
93c0bdec | 250 | DEBUG_PORT_HANDLE\r |
251 | GetDebugPortHandle (\r | |
252 | VOID\r | |
18b144ea | 253 | );\r |
254 | \r | |
255 | /**\r | |
93c0bdec | 256 | Read the Attach/Break-in symbols from the debug port.\r |
18b144ea | 257 | \r |
93c0bdec | 258 | @param[in] Handle Pointer to Debug Port handle.\r |
259 | @param[out] BreakSymbol Returned break symbol.\r | |
18b144ea | 260 | \r |
93c0bdec | 261 | @retval EFI_SUCCESS Read the symbol in BreakSymbol.\r |
262 | @retval EFI_NOT_FOUND No read the break symbol.\r | |
18b144ea | 263 | \r |
264 | **/\r | |
93c0bdec | 265 | EFI_STATUS\r |
266 | DebugReadBreakSymbol (\r | |
267 | IN DEBUG_PORT_HANDLE Handle,\r | |
268 | OUT UINT8 *BreakSymbol\r | |
18b144ea | 269 | );\r |
270 | \r | |
271 | /**\r | |
93c0bdec | 272 | Prints a debug message to the debug port if the specified error level is enabled.\r |
18b144ea | 273 | \r |
93c0bdec | 274 | If any bit in ErrorLevel is also set in Mainbox, then print the message specified\r |
275 | by Format and the associated variable argument list to the debug port.\r | |
18b144ea | 276 | \r |
93c0bdec | 277 | @param[in] ErrorLevel The error level of the debug message.\r |
278 | @param[in] Format Format string for the debug message to print.\r | |
279 | @param[in] ... Variable argument list whose contents are accessed \r | |
280 | based on the format string specified by Format.\r | |
18b144ea | 281 | \r |
282 | **/\r | |
93c0bdec | 283 | VOID\r |
284 | EFIAPI\r | |
285 | DebugAgentMsgPrint (\r | |
286 | IN UINT8 ErrorLevel,\r | |
287 | IN CHAR8 *Format,\r | |
288 | ...\r | |
18b144ea | 289 | );\r |
b422b62c | 290 | \r |
291 | /**\r | |
292 | Trigger one software interrupt to debug agent to handle it.\r | |
293 | \r | |
294 | @param[in] Signature Software interrupt signature.\r | |
295 | \r | |
296 | **/\r | |
297 | VOID\r | |
298 | TriggerSoftInterrupt (\r | |
299 | IN UINT32 Signature\r | |
300 | );\r | |
301 | \r | |
302 | /**\r | |
303 | Check if debug agent support multi-processor.\r | |
304 | \r | |
305 | @retval TRUE Multi-processor is supported.\r | |
306 | @retval FALSE Multi-processor is not supported.\r | |
307 | \r | |
308 | **/\r | |
309 | BOOLEAN\r | |
310 | MultiProcessorDebugSupport (\r | |
311 | VOID\r | |
312 | );\r | |
313 | \r | |
314 | /**\r | |
315 | Find and report module image info to HOST.\r | |
316 | \r | |
317 | @param[in] AlignSize Image aligned size.\r | |
318 | \r | |
319 | **/\r | |
320 | VOID \r | |
321 | FindAndReportModuleImageInfo (\r | |
322 | IN UINTN AlignSize \r | |
323 | );\r | |
324 | \r | |
325 | /**\r | |
326 | Read IDT entry to check if IDT entries are setup by Debug Agent.\r | |
327 | \r | |
328 | @retval TRUE IDT entries were setup by Debug Agent.\r | |
329 | @retval FALSE IDT entries were not setup by Debug Agent.\r | |
330 | \r | |
331 | **/\r | |
332 | BOOLEAN \r | |
333 | IsDebugAgentInitialzed (\r | |
334 | VOID\r | |
335 | );\r | |
336 | \r | |
337 | /**\r | |
338 | Caculate Mailbox checksum and update the checksum field.\r | |
339 | \r | |
340 | @param[in] Mailbox Debug Agent Mailbox pointer.\r | |
341 | \r | |
342 | **/\r | |
343 | VOID\r | |
344 | UpdateMailboxChecksum (\r | |
345 | IN DEBUG_AGENT_MAILBOX *Mailbox\r | |
346 | );\r | |
347 | \r | |
348 | /**\r | |
349 | Verify Mailbox checksum.\r | |
350 | \r | |
351 | If checksum error, print debug message and run init dead loop.\r | |
352 | \r | |
353 | @param[in] Mailbox Debug Agent Mailbox pointer.\r | |
354 | \r | |
355 | **/\r | |
356 | VOID \r | |
357 | VerifyMailboxChecksum (\r | |
358 | IN DEBUG_AGENT_MAILBOX *Mailbox\r | |
359 | );\r | |
360 | \r | |
361 | /**\r | |
362 | Set debug flag in mailbox.\r | |
363 | \r | |
364 | @param[in] FlagMask Debug flag mask value.\r | |
365 | @param[in] FlagValue Debug flag value.\r | |
366 | \r | |
367 | **/\r | |
368 | VOID \r | |
369 | SetDebugFlag (\r | |
370 | IN UINT64 FlagMask,\r | |
371 | IN UINT32 FlagValue \r | |
372 | );\r | |
373 | \r | |
374 | /**\r | |
375 | Get debug flag in mailbox.\r | |
376 | \r | |
377 | @param[in] FlagMask Debug flag mask value.\r | |
378 | \r | |
379 | @return Debug flag value.\r | |
380 | \r | |
381 | **/\r | |
382 | UINT32\r | |
383 | GetDebugFlag (\r | |
384 | IN UINT64 FlagMask\r | |
385 | );\r | |
386 | \r | |
387 | /**\r | |
388 | Update Mailbox content by index.\r | |
389 | \r | |
390 | @param[in] Mailbox Debug Agent Mailbox pointer.\r | |
391 | @param[in] Index Mailbox content index.\r | |
392 | @param[in] Value Value to be set into mail box.\r | |
393 | \r | |
394 | **/\r | |
395 | VOID\r | |
396 | UpdateMailboxContent ( \r | |
397 | IN DEBUG_AGENT_MAILBOX *Mailbox,\r | |
398 | IN UINTN Index,\r | |
399 | IN UINT64 Value\r | |
400 | );\r | |
401 | \r | |
402 | /**\r | |
403 | Retrieve exception handler from IDT table by ExceptionNum.\r | |
404 | \r | |
405 | @param[in] ExceptionNum Exception number\r | |
406 | \r | |
407 | @return Exception handler\r | |
408 | \r | |
409 | **/\r | |
410 | VOID *\r | |
411 | GetExceptionHandlerInIdtEntry (\r | |
412 | IN UINTN ExceptionNum\r | |
413 | );\r | |
414 | \r | |
415 | /**\r | |
416 | Set exception handler in IDT table by ExceptionNum.\r | |
417 | \r | |
418 | @param[in] ExceptionNum Exception number\r | |
419 | @param[in] ExceptionHandler Exception Handler to be set \r | |
420 | \r | |
421 | **/\r | |
422 | VOID\r | |
423 | SetExceptionHandlerInIdtEntry (\r | |
424 | IN UINTN ExceptionNum,\r | |
425 | IN VOID *ExceptionHandler\r | |
426 | );\r | |
427 | \r | |
428 | /**\r | |
429 | Prints a debug message to the debug output device if the specified error level is enabled.\r | |
430 | \r | |
431 | If any bit in ErrorLevel is also set in DebugPrintErrorLevelLib function \r | |
432 | GetDebugPrintErrorLevel (), then print the message specified by Format and the \r | |
433 | associated variable argument list to the debug output device.\r | |
434 | \r | |
435 | If Format is NULL, then ASSERT().\r | |
436 | \r | |
437 | @param[in] ErrorLevel The error level of the debug message.\r | |
438 | @param[in] IsSend Flag of debug message to declare that the data is being sent or being received.\r | |
439 | @param[in] Data Variable argument list whose contents are accessed \r | |
440 | @param[in] Length based on the format string specified by Format.\r | |
441 | \r | |
442 | **/\r | |
443 | VOID\r | |
444 | EFIAPI\r | |
445 | DebugAgentDataMsgPrint (\r | |
446 | IN UINT8 ErrorLevel,\r | |
447 | IN BOOLEAN IsSend,\r | |
448 | IN UINT8 *Data,\r | |
449 | IN UINT8 Length \r | |
450 | );\r | |
451 | \r | |
452 | /**\r | |
453 | Read remaing debug packet except for the start symbol\r | |
454 | \r | |
455 | @param[in] Handle Pointer to Debug Port handle.\r | |
456 | @param[in, out] DebugHeader Debug header buffer including start symbol.\r | |
457 | \r | |
458 | @retval EFI_SUCCESS Read the symbol in BreakSymbol.\r | |
459 | @retval EFI_CRC_ERROR CRC check fail.\r | |
460 | @retval EFI_TIMEOUT Timeout occurs when reading debug packet.\r | |
461 | \r | |
462 | **/\r | |
463 | EFI_STATUS\r | |
464 | ReadRemainingBreakPacket (\r | |
465 | IN DEBUG_PORT_HANDLE Handle,\r | |
466 | IN OUT DEBUG_PACKET_HEADER *DebugHeader\r | |
467 | );\r | |
468 | \r | |
18b144ea | 469 | #endif\r |
470 | \r |