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18b144ea | 1 | /** @file\r |
2 | Commond Debug Agent library implementition. It mainly includes\r | |
3 | the first C function called by exception/interrupt handlers,\r | |
4 | read/write debug packet to communication with HOST based on transfer\r | |
5 | protocol.\r | |
6 | \r | |
d9044ec5 | 7 | Copyright (c) 2010 - 2015, Intel Corporation. All rights reserved.<BR>\r |
18b144ea | 8 | This program and the accompanying materials\r |
9 | are licensed and made available under the terms and conditions of the BSD License\r | |
10 | which accompanies this distribution. The full text of the license may be found at\r | |
11 | http://opensource.org/licenses/bsd-license.php.\r | |
12 | \r | |
13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
15 | \r | |
16 | **/\r | |
17 | \r | |
18 | #include "DebugAgent.h"\r | |
19 | #include "Ia32/DebugException.h"\r | |
20 | \r | |
4fe43eb3 JF |
21 | GLOBAL_REMOVE_IF_UNREFERENCED CHAR8 mErrorMsgVersionAlert[] = "\rThe SourceLevelDebugPkg you are using requires a newer version of the Intel(R) UDK Debugger Tool.\r\n";\r |
22 | GLOBAL_REMOVE_IF_UNREFERENCED CHAR8 mErrorMsgSendInitPacket[] = "\rSend INIT break packet and try to connect the HOST (Intel(R) UDK Debugger Tool v1.4) ...\r\n";\r | |
23 | GLOBAL_REMOVE_IF_UNREFERENCED CHAR8 mErrorMsgConnectOK[] = "HOST connection is successful!\r\n";\r | |
24 | GLOBAL_REMOVE_IF_UNREFERENCED CHAR8 mErrorMsgConnectFail[] = "HOST connection is failed!\r\n";\r | |
25 | GLOBAL_REMOVE_IF_UNREFERENCED CHAR8 mWarningMsgIngoreBreakpoint[] = "Ignore break point in SMM for SMI issued during DXE debugging!\r\n";\r | |
93c0bdec | 26 | \r |
8cc26df4 JF |
27 | //\r |
28 | // Vector Handoff Info list used by Debug Agent for persist\r | |
29 | //\r | |
4fe43eb3 | 30 | GLOBAL_REMOVE_IF_UNREFERENCED EFI_VECTOR_HANDOFF_INFO mVectorHandoffInfoDebugAgent[] = {\r |
8cc26df4 JF |
31 | {\r |
32 | DEBUG_EXCEPT_DIVIDE_ERROR, // Vector 0\r | |
33 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
34 | EFI_DEBUG_AGENT_GUID\r | |
35 | },\r | |
36 | {\r | |
37 | DEBUG_EXCEPT_DEBUG, // Vector 1\r | |
38 | EFI_VECTOR_HANDOFF_DO_NOT_HOOK,\r | |
39 | EFI_DEBUG_AGENT_GUID\r | |
40 | },\r | |
41 | {\r | |
42 | DEBUG_EXCEPT_NMI, // Vector 2\r | |
43 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
44 | EFI_DEBUG_AGENT_GUID\r | |
45 | },\r | |
46 | {\r | |
47 | DEBUG_EXCEPT_BREAKPOINT, // Vector 3\r | |
48 | EFI_VECTOR_HANDOFF_DO_NOT_HOOK,\r | |
49 | EFI_DEBUG_AGENT_GUID\r | |
50 | },\r | |
51 | {\r | |
52 | DEBUG_EXCEPT_OVERFLOW, // Vector 4\r | |
53 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
54 | EFI_DEBUG_AGENT_GUID\r | |
55 | },\r | |
56 | {\r | |
57 | DEBUG_EXCEPT_BOUND, // Vector 5\r | |
58 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
59 | EFI_DEBUG_AGENT_GUID\r | |
60 | },\r | |
61 | {\r | |
62 | DEBUG_EXCEPT_INVALID_OPCODE, // Vector 6\r | |
63 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
64 | EFI_DEBUG_AGENT_GUID\r | |
65 | },\r | |
66 | {\r | |
67 | DEBUG_EXCEPT_DOUBLE_FAULT, // Vector 8\r | |
68 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
69 | EFI_DEBUG_AGENT_GUID\r | |
70 | },\r | |
71 | {\r | |
72 | DEBUG_EXCEPT_INVALID_TSS, // Vector 10\r | |
73 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
74 | EFI_DEBUG_AGENT_GUID\r | |
75 | },\r | |
76 | {\r | |
77 | DEBUG_EXCEPT_SEG_NOT_PRESENT, // Vector 11\r | |
78 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
79 | EFI_DEBUG_AGENT_GUID\r | |
80 | },\r | |
81 | {\r | |
82 | DEBUG_EXCEPT_STACK_FAULT, // Vector 12\r | |
83 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
84 | EFI_DEBUG_AGENT_GUID\r | |
85 | },\r | |
86 | {\r | |
87 | DEBUG_EXCEPT_GP_FAULT, // Vector 13\r | |
88 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
89 | EFI_DEBUG_AGENT_GUID\r | |
90 | },\r | |
91 | {\r | |
92 | DEBUG_EXCEPT_PAGE_FAULT, // Vector 14\r | |
93 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
94 | EFI_DEBUG_AGENT_GUID\r | |
95 | },\r | |
96 | {\r | |
97 | DEBUG_EXCEPT_FP_ERROR, // Vector 16\r | |
98 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
99 | EFI_DEBUG_AGENT_GUID\r | |
100 | },\r | |
101 | {\r | |
102 | DEBUG_EXCEPT_ALIGNMENT_CHECK, // Vector 17\r | |
103 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
104 | EFI_DEBUG_AGENT_GUID\r | |
105 | },\r | |
106 | {\r | |
107 | DEBUG_EXCEPT_MACHINE_CHECK, // Vector 18\r | |
108 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
109 | EFI_DEBUG_AGENT_GUID\r | |
110 | },\r | |
111 | {\r | |
112 | DEBUG_EXCEPT_SIMD, // Vector 19\r | |
113 | EFI_VECTOR_HANDOFF_HOOK_BEFORE,\r | |
114 | EFI_DEBUG_AGENT_GUID\r | |
115 | },\r | |
116 | {\r | |
117 | DEBUG_TIMER_VECTOR, // Vector 32\r | |
118 | EFI_VECTOR_HANDOFF_DO_NOT_HOOK,\r | |
119 | EFI_DEBUG_AGENT_GUID\r | |
120 | },\r | |
121 | {\r | |
122 | DEBUG_MAILBOX_VECTOR, // Vector 33\r | |
123 | EFI_VECTOR_HANDOFF_DO_NOT_HOOK,\r | |
124 | EFI_DEBUG_AGENT_GUID\r | |
125 | },\r | |
126 | {\r | |
127 | 0,\r | |
128 | EFI_VECTOR_HANDOFF_LAST_ENTRY,\r | |
129 | { 0 }\r | |
130 | }\r | |
131 | };\r | |
132 | \r | |
4fe43eb3 | 133 | GLOBAL_REMOVE_IF_UNREFERENCED UINTN mVectorHandoffInfoCount = sizeof (mVectorHandoffInfoDebugAgent) / sizeof (EFI_VECTOR_HANDOFF_INFO);\r |
8cc26df4 | 134 | \r |
b422b62c | 135 | /**\r |
136 | Calculate CRC16 for target data.\r | |
137 | \r | |
138 | @param[in] Data The target data.\r | |
139 | @param[in] DataSize The target data size.\r | |
140 | @param[in] Crc Initial CRC.\r | |
141 | \r | |
142 | @return UINT16 The CRC16 value.\r | |
143 | \r | |
144 | **/\r | |
145 | UINT16\r | |
146 | CalculateCrc16 (\r | |
147 | IN UINT8 *Data,\r | |
148 | IN UINTN DataSize,\r | |
149 | IN UINT16 Crc\r | |
150 | )\r | |
151 | {\r | |
152 | UINTN Index;\r | |
153 | UINTN BitIndex;\r | |
154 | \r | |
155 | for (Index = 0; Index < DataSize; Index++) {\r | |
31fc7b4d | 156 | Crc ^= (UINT16)Data[Index];\r |
b422b62c | 157 | for (BitIndex = 0; BitIndex < 8; BitIndex++) {\r |
158 | if ((Crc & 0x8000) != 0) {\r | |
159 | Crc <<= 1;\r | |
160 | Crc ^= 0x1021;\r | |
161 | } else {\r | |
162 | Crc <<= 1;\r | |
163 | }\r | |
164 | }\r | |
165 | }\r | |
166 | return Crc;\r | |
167 | }\r | |
168 | \r | |
169 | \r | |
170 | /**\r | |
171 | Read IDT entry to check if IDT entries are setup by Debug Agent.\r | |
172 | \r | |
173 | @retval TRUE IDT entries were setup by Debug Agent.\r | |
174 | @retval FALSE IDT entries were not setup by Debug Agent.\r | |
175 | \r | |
176 | **/\r | |
4fe43eb3 | 177 | BOOLEAN\r |
b422b62c | 178 | IsDebugAgentInitialzed (\r |
179 | VOID\r | |
180 | )\r | |
181 | {\r | |
182 | UINTN InterruptHandler;\r | |
183 | \r | |
184 | InterruptHandler = (UINTN) GetExceptionHandlerInIdtEntry (0);\r | |
185 | if (InterruptHandler >= 4 && *(UINT32 *)(InterruptHandler - 4) == AGENT_HANDLER_SIGNATURE) {\r | |
186 | return TRUE;\r | |
187 | } else {\r | |
188 | return FALSE;\r | |
189 | }\r | |
190 | }\r | |
191 | \r | |
192 | /**\r | |
193 | Find and report module image info to HOST.\r | |
4fe43eb3 | 194 | \r |
b422b62c | 195 | @param[in] AlignSize Image aligned size.\r |
4fe43eb3 | 196 | \r |
b422b62c | 197 | **/\r |
4fe43eb3 | 198 | VOID\r |
b422b62c | 199 | FindAndReportModuleImageInfo (\r |
4fe43eb3 | 200 | IN UINTN AlignSize\r |
b422b62c | 201 | )\r |
202 | {\r | |
203 | UINTN Pe32Data;\r | |
204 | EFI_IMAGE_DOS_HEADER *DosHdr;\r | |
205 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r | |
206 | PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;\r | |
207 | \r | |
208 | //\r | |
209 | // Find Image Base\r | |
210 | //\r | |
211 | Pe32Data = ((UINTN)mErrorMsgVersionAlert) & ~(AlignSize - 1);\r | |
212 | while (Pe32Data != 0) {\r | |
213 | DosHdr = (EFI_IMAGE_DOS_HEADER *) Pe32Data;\r | |
214 | if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r | |
215 | //\r | |
216 | // DOS image header is present, so read the PE header after the DOS image header.\r | |
b422b62c | 217 | //\r |
9e2364ef JF |
218 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)(Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));\r |
219 | //\r | |
220 | // Make sure PE header address does not overflow and is less than the initial address.\r | |
221 | //\r | |
222 | if (((UINTN)Hdr.Pe32 > Pe32Data) && ((UINTN)Hdr.Pe32 < (UINTN)mErrorMsgVersionAlert)) {\r | |
b422b62c | 223 | if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r |
224 | //\r | |
225 | // It's PE image.\r | |
226 | //\r | |
227 | break;\r | |
228 | }\r | |
229 | }\r | |
230 | } else {\r | |
231 | //\r | |
232 | // DOS image header is not present, TE header is at the image base.\r | |
233 | //\r | |
234 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;\r | |
235 | if ((Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) &&\r | |
236 | ((Hdr.Te->Machine == IMAGE_FILE_MACHINE_I386) || Hdr.Te->Machine == IMAGE_FILE_MACHINE_X64)) {\r | |
237 | //\r | |
238 | // It's TE image, it TE header and Machine type match\r | |
239 | //\r | |
240 | break;\r | |
241 | }\r | |
242 | }\r | |
243 | \r | |
244 | //\r | |
245 | // Not found the image base, check the previous aligned address\r | |
4fe43eb3 | 246 | //\r |
b422b62c | 247 | Pe32Data -= AlignSize;\r |
248 | }\r | |
249 | \r | |
250 | ImageContext.ImageAddress = Pe32Data;\r | |
251 | ImageContext.PdbPointer = PeCoffLoaderGetPdbPointer ((VOID*) (UINTN) ImageContext.ImageAddress);\r | |
252 | PeCoffLoaderRelocateImageExtraAction (&ImageContext);\r | |
253 | }\r | |
254 | \r | |
255 | /**\r | |
256 | Trigger one software interrupt to debug agent to handle it.\r | |
257 | \r | |
258 | @param[in] Signature Software interrupt signature.\r | |
259 | \r | |
260 | **/\r | |
261 | VOID\r | |
262 | TriggerSoftInterrupt (\r | |
263 | IN UINT32 Signature\r | |
264 | )\r | |
265 | {\r | |
266 | UINTN Dr0;\r | |
267 | UINTN Dr1;\r | |
268 | \r | |
269 | //\r | |
270 | // Save Debug Register State\r | |
271 | //\r | |
272 | Dr0 = AsmReadDr0 ();\r | |
273 | Dr1 = AsmReadDr1 ();\r | |
274 | \r | |
275 | //\r | |
276 | // DR0 = Signature\r | |
277 | //\r | |
278 | AsmWriteDr0 (SOFT_INTERRUPT_SIGNATURE);\r | |
279 | AsmWriteDr1 (Signature);\r | |
280 | \r | |
281 | //\r | |
282 | // Do INT3 to communicate with HOST side\r | |
283 | //\r | |
284 | CpuBreakpoint ();\r | |
285 | \r | |
286 | //\r | |
287 | // Restore Debug Register State only when Host didn't change it inside exception handler.\r | |
288 | // Dr registers can only be changed by setting the HW breakpoint.\r | |
289 | //\r | |
290 | AsmWriteDr0 (Dr0);\r | |
291 | AsmWriteDr1 (Dr1);\r | |
292 | \r | |
293 | }\r | |
294 | \r | |
295 | /**\r | |
296 | Caculate Mailbox checksum and update the checksum field.\r | |
297 | \r | |
298 | @param[in] Mailbox Debug Agent Mailbox pointer.\r | |
299 | \r | |
300 | **/\r | |
301 | VOID\r | |
302 | UpdateMailboxChecksum (\r | |
303 | IN DEBUG_AGENT_MAILBOX *Mailbox\r | |
304 | )\r | |
305 | {\r | |
4fe43eb3 | 306 | Mailbox->CheckSum = CalculateCheckSum8 ((UINT8 *)Mailbox, sizeof (DEBUG_AGENT_MAILBOX) - 2);\r |
b422b62c | 307 | }\r |
308 | \r | |
309 | /**\r | |
310 | Verify Mailbox checksum.\r | |
311 | \r | |
312 | If checksum error, print debug message and run init dead loop.\r | |
313 | \r | |
314 | @param[in] Mailbox Debug Agent Mailbox pointer.\r | |
315 | \r | |
316 | **/\r | |
4fe43eb3 | 317 | VOID\r |
b422b62c | 318 | VerifyMailboxChecksum (\r |
319 | IN DEBUG_AGENT_MAILBOX *Mailbox\r | |
320 | )\r | |
321 | {\r | |
322 | UINT8 CheckSum;\r | |
4fe43eb3 | 323 | \r |
b422b62c | 324 | CheckSum = CalculateCheckSum8 ((UINT8 *) Mailbox, sizeof (DEBUG_AGENT_MAILBOX) - 2);\r |
325 | //\r | |
4fe43eb3 | 326 | // The checksum updating process may be disturbed by hardware SMI, we need to check CheckSum field\r |
b422b62c | 327 | // and ToBeCheckSum field to validate the mail box.\r |
328 | //\r | |
329 | if (CheckSum != Mailbox->CheckSum && CheckSum != Mailbox->ToBeCheckSum) {\r | |
330 | DEBUG ((EFI_D_ERROR, "DebugAgent: Mailbox checksum error, stack or heap crashed!\n"));\r | |
331 | DEBUG ((EFI_D_ERROR, "DebugAgent: CheckSum = %x, Mailbox->CheckSum = %x, Mailbox->ToBeCheckSum = %x\n", CheckSum, Mailbox->CheckSum, Mailbox->ToBeCheckSum));\r | |
332 | CpuDeadLoop ();\r | |
333 | }\r | |
334 | }\r | |
335 | \r | |
336 | /**\r | |
337 | Update Mailbox content by index.\r | |
338 | \r | |
339 | @param[in] Mailbox Debug Agent Mailbox pointer.\r | |
340 | @param[in] Index Mailbox content index.\r | |
341 | @param[in] Value Value to be set into Mailbox.\r | |
4fe43eb3 | 342 | \r |
b422b62c | 343 | **/\r |
344 | VOID\r | |
4fe43eb3 | 345 | UpdateMailboxContent (\r |
b422b62c | 346 | IN DEBUG_AGENT_MAILBOX *Mailbox,\r |
347 | IN UINTN Index,\r | |
348 | IN UINT64 Value\r | |
349 | )\r | |
350 | {\r | |
351 | AcquireMpSpinLock (&mDebugMpContext.MailboxSpinLock);\r | |
352 | switch (Index) {\r | |
353 | case DEBUG_MAILBOX_DEBUG_FLAG_INDEX:\r | |
4fe43eb3 | 354 | Mailbox->ToBeCheckSum = Mailbox->CheckSum + CalculateSum8 ((UINT8 *)&Mailbox->DebugFlag.Uint64, sizeof(UINT64))\r |
b422b62c | 355 | - CalculateSum8 ((UINT8 *)&Value, sizeof(UINT64));\r |
356 | Mailbox->DebugFlag.Uint64 = Value;\r | |
357 | break;\r | |
358 | case DEBUG_MAILBOX_DEBUG_PORT_HANDLE_INDEX:\r | |
359 | Mailbox->ToBeCheckSum = Mailbox->CheckSum + CalculateSum8 ((UINT8 *)&Mailbox->DebugPortHandle, sizeof(UINTN))\r | |
360 | - CalculateSum8 ((UINT8 *)&Value, sizeof(UINTN));\r | |
361 | Mailbox->DebugPortHandle = (UINTN) Value;\r | |
362 | break;\r | |
363 | case DEBUG_MAILBOX_EXCEPTION_BUFFER_POINTER_INDEX:\r | |
364 | Mailbox->ToBeCheckSum = Mailbox->CheckSum + CalculateSum8 ((UINT8 *)&Mailbox->ExceptionBufferPointer, sizeof(UINTN))\r | |
365 | - CalculateSum8 ((UINT8 *)&Value, sizeof(UINTN));\r | |
366 | Mailbox->ExceptionBufferPointer = (UINTN) Value;\r | |
367 | break;\r | |
368 | case DEBUG_MAILBOX_LAST_ACK:\r | |
369 | Mailbox->ToBeCheckSum = Mailbox->CheckSum + CalculateSum8 ((UINT8 *)&Mailbox->LastAck, sizeof(UINT8))\r | |
370 | - CalculateSum8 ((UINT8 *)&Value, sizeof(UINT8));\r | |
371 | Mailbox->LastAck = (UINT8) Value;\r | |
372 | break;\r | |
373 | case DEBUG_MAILBOX_SEQUENCE_NO_INDEX:\r | |
374 | Mailbox->ToBeCheckSum = Mailbox->CheckSum + CalculateSum8 ((UINT8 *)&Mailbox->SequenceNo, sizeof(UINT8))\r | |
375 | - CalculateSum8 ((UINT8 *)&Value, sizeof(UINT8));\r | |
376 | Mailbox->SequenceNo = (UINT8) Value;\r | |
377 | break;\r | |
378 | case DEBUG_MAILBOX_HOST_SEQUENCE_NO_INDEX:\r | |
379 | Mailbox->ToBeCheckSum = Mailbox->CheckSum + CalculateSum8 ((UINT8 *)&Mailbox->HostSequenceNo, sizeof(UINT8))\r | |
380 | - CalculateSum8 ((UINT8 *)&Value, sizeof(UINT8));\r | |
381 | Mailbox->HostSequenceNo = (UINT8) Value;\r | |
382 | break;\r | |
383 | }\r | |
384 | UpdateMailboxChecksum (Mailbox);\r | |
385 | ReleaseMpSpinLock (&mDebugMpContext.MailboxSpinLock);\r | |
386 | }\r | |
387 | /**\r | |
388 | Set debug flag in mailbox.\r | |
389 | \r | |
390 | @param[in] FlagMask Debug flag mask value.\r | |
391 | @param[in] FlagValue Debug flag value.\r | |
392 | \r | |
393 | **/\r | |
4fe43eb3 | 394 | VOID\r |
b422b62c | 395 | SetDebugFlag (\r |
396 | IN UINT64 FlagMask,\r | |
4fe43eb3 | 397 | IN UINT32 FlagValue\r |
b422b62c | 398 | )\r |
399 | {\r | |
400 | DEBUG_AGENT_MAILBOX *Mailbox;\r | |
401 | UINT64 Data64;\r | |
402 | \r | |
403 | Mailbox = GetMailboxPointer ();\r | |
404 | Data64 = (Mailbox->DebugFlag.Uint64 & ~FlagMask) |\r | |
405 | (LShiftU64 ((UINT64)FlagValue, LowBitSet64 (FlagMask)) & FlagMask);\r | |
406 | UpdateMailboxContent (Mailbox, DEBUG_MAILBOX_DEBUG_FLAG_INDEX, Data64);\r | |
407 | }\r | |
408 | \r | |
409 | /**\r | |
410 | Get debug flag in mailbox.\r | |
411 | \r | |
412 | @param[in] FlagMask Debug flag mask value.\r | |
4fe43eb3 | 413 | \r |
b422b62c | 414 | @return Debug flag value.\r |
415 | \r | |
416 | **/\r | |
417 | UINT32\r | |
418 | GetDebugFlag (\r | |
419 | IN UINT64 FlagMask\r | |
420 | )\r | |
421 | {\r | |
422 | DEBUG_AGENT_MAILBOX *Mailbox;\r | |
423 | UINT32 DebugFlag;\r | |
424 | \r | |
425 | Mailbox = GetMailboxPointer ();\r | |
426 | DebugFlag = (UINT32) RShiftU64 (Mailbox->DebugFlag.Uint64 & FlagMask, LowBitSet64 (FlagMask));\r | |
427 | \r | |
428 | return DebugFlag;\r | |
429 | }\r | |
93c0bdec | 430 | \r |
18b144ea | 431 | /**\r |
93c0bdec | 432 | Send a debug message packet to the debug port.\r |
18b144ea | 433 | \r |
93c0bdec | 434 | @param[in] Buffer The debug message.\r |
435 | @param[in] Length The length of debug message.\r | |
18b144ea | 436 | \r |
437 | **/\r | |
93c0bdec | 438 | VOID\r |
439 | SendDebugMsgPacket (\r | |
440 | IN CHAR8 *Buffer,\r | |
4fe43eb3 | 441 | IN UINTN Length\r |
18b144ea | 442 | )\r |
443 | {\r | |
93c0bdec | 444 | DEBUG_PACKET_HEADER DebugHeader;\r |
445 | DEBUG_PORT_HANDLE Handle;\r | |
4fe43eb3 | 446 | \r |
93c0bdec | 447 | Handle = GetDebugPortHandle();\r |
18b144ea | 448 | \r |
93c0bdec | 449 | DebugHeader.StartSymbol = DEBUG_STARTING_SYMBOL_NORMAL;\r |
450 | DebugHeader.Command = DEBUG_COMMAND_PRINT_MESSAGE;\r | |
451 | DebugHeader.Length = sizeof (DEBUG_PACKET_HEADER) + (UINT8) Length;\r | |
b422b62c | 452 | DebugHeader.SequenceNo = 0xEE;\r |
453 | DebugHeader.Crc = 0;\r | |
454 | DebugHeader.Crc = CalculateCrc16 (\r | |
455 | (UINT8 *)Buffer, Length,\r | |
456 | CalculateCrc16 ((UINT8 *)&DebugHeader, sizeof (DEBUG_PACKET_HEADER), 0)\r | |
457 | );\r | |
18b144ea | 458 | \r |
93c0bdec | 459 | DebugPortWriteBuffer (Handle, (UINT8 *)&DebugHeader, sizeof (DEBUG_PACKET_HEADER));\r |
460 | DebugPortWriteBuffer (Handle, (UINT8 *)Buffer, Length);\r | |
461 | }\r | |
462 | \r | |
463 | /**\r | |
464 | Prints a debug message to the debug port if the specified error level is enabled.\r | |
465 | \r | |
466 | If any bit in ErrorLevel is also set in Mainbox, then print the message specified\r | |
467 | by Format and the associated variable argument list to the debug port.\r | |
468 | \r | |
469 | @param[in] ErrorLevel The error level of the debug message.\r | |
470 | @param[in] Format Format string for the debug message to print.\r | |
4fe43eb3 | 471 | @param[in] ... Variable argument list whose contents are accessed\r |
93c0bdec | 472 | based on the format string specified by Format.\r |
473 | \r | |
474 | **/\r | |
475 | VOID\r | |
476 | EFIAPI\r | |
477 | DebugAgentMsgPrint (\r | |
478 | IN UINT8 ErrorLevel,\r | |
479 | IN CHAR8 *Format,\r | |
480 | ...\r | |
481 | )\r | |
482 | {\r | |
93c0bdec | 483 | CHAR8 Buffer[DEBUG_DATA_MAXIMUM_REAL_DATA];\r |
484 | VA_LIST Marker;\r | |
485 | \r | |
93c0bdec | 486 | //\r |
487 | // Check driver debug mask value and global mask\r | |
488 | //\r | |
b422b62c | 489 | if ((ErrorLevel & GetDebugFlag (DEBUG_AGENT_FLAG_PRINT_ERROR_LEVEL)) == 0) {\r |
93c0bdec | 490 | return;\r |
18b144ea | 491 | }\r |
93c0bdec | 492 | \r |
493 | //\r | |
494 | // Convert the DEBUG() message to an ASCII String\r | |
495 | //\r | |
496 | VA_START (Marker, Format);\r | |
497 | AsciiVSPrint (Buffer, sizeof (Buffer), Format, Marker);\r | |
498 | VA_END (Marker);\r | |
499 | \r | |
500 | SendDebugMsgPacket (Buffer, AsciiStrLen (Buffer));\r | |
18b144ea | 501 | }\r |
502 | \r | |
503 | /**\r | |
93c0bdec | 504 | Prints a debug message to the debug output device if the specified error level is enabled.\r |
505 | \r | |
4fe43eb3 JF |
506 | If any bit in ErrorLevel is also set in DebugPrintErrorLevelLib function\r |
507 | GetDebugPrintErrorLevel (), then print the message specified by Format and the\r | |
93c0bdec | 508 | associated variable argument list to the debug output device.\r |
509 | \r | |
510 | If Format is NULL, then ASSERT().\r | |
511 | \r | |
512 | @param[in] ErrorLevel The error level of the debug message.\r | |
513 | @param[in] IsSend Flag of debug message to declare that the data is being sent or being received.\r | |
4fe43eb3 | 514 | @param[in] Data Variable argument list whose contents are accessed\r |
93c0bdec | 515 | @param[in] Length based on the format string specified by Format.\r |
18b144ea | 516 | \r |
517 | **/\r | |
518 | VOID\r | |
93c0bdec | 519 | EFIAPI\r |
520 | DebugAgentDataMsgPrint (\r | |
521 | IN UINT8 ErrorLevel,\r | |
522 | IN BOOLEAN IsSend,\r | |
523 | IN UINT8 *Data,\r | |
4fe43eb3 | 524 | IN UINT8 Length\r |
18b144ea | 525 | )\r |
526 | {\r | |
93c0bdec | 527 | CHAR8 Buffer[DEBUG_DATA_MAXIMUM_REAL_DATA];\r |
528 | CHAR8 *DestBuffer;\r | |
529 | UINTN Index;\r | |
18b144ea | 530 | \r |
93c0bdec | 531 | //\r |
532 | // Check driver debug mask value and global mask\r | |
533 | //\r | |
b422b62c | 534 | if ((ErrorLevel & GetDebugFlag (DEBUG_AGENT_FLAG_PRINT_ERROR_LEVEL)) == 0) {\r |
93c0bdec | 535 | return;\r |
536 | }\r | |
537 | \r | |
538 | DestBuffer = Buffer;\r | |
539 | if (IsSend) {\r | |
540 | DestBuffer += AsciiSPrint (DestBuffer, DEBUG_DATA_MAXIMUM_REAL_DATA, "Sent data [ ");\r | |
541 | } else {\r | |
542 | DestBuffer += AsciiSPrint (DestBuffer, DEBUG_DATA_MAXIMUM_REAL_DATA, "Received data [ ");\r | |
543 | }\r | |
18b144ea | 544 | \r |
93c0bdec | 545 | Index = 0;\r |
546 | while (TRUE) {\r | |
547 | if (DestBuffer - Buffer > DEBUG_DATA_MAXIMUM_REAL_DATA - 6) {\r | |
548 | //\r | |
4fe43eb3 | 549 | // If there was no enough space in buffer, send out the debug message,\r |
93c0bdec | 550 | // reserving 6 bytes is for the last data and end characters "]\n".\r |
551 | //\r | |
552 | SendDebugMsgPacket (Buffer, DestBuffer - Buffer);\r | |
553 | DestBuffer = Buffer;\r | |
554 | }\r | |
555 | DestBuffer += AsciiSPrint (DestBuffer, DEBUG_DATA_MAXIMUM_REAL_DATA - (DestBuffer - Buffer), "%02x ", Data[Index]);\r | |
556 | Index ++;\r | |
557 | if (Index >= Length) {\r | |
b422b62c | 558 | //\r |
93c0bdec | 559 | // The last character of debug message has been foramtted in buffer\r |
560 | //\r | |
561 | DestBuffer += AsciiSPrint(DestBuffer, DEBUG_DATA_MAXIMUM_REAL_DATA - (DestBuffer - Buffer), "]\n");\r | |
562 | SendDebugMsgPacket (Buffer, DestBuffer - Buffer);\r | |
563 | break;\r | |
564 | }\r | |
565 | }\r | |
18b144ea | 566 | }\r |
567 | \r | |
b422b62c | 568 | /**\r |
569 | Read remaing debug packet except for the start symbol\r | |
570 | \r | |
571 | @param[in] Handle Pointer to Debug Port handle.\r | |
572 | @param[in, out] DebugHeader Debug header buffer including start symbol.\r | |
573 | \r | |
574 | @retval EFI_SUCCESS Read the symbol in BreakSymbol.\r | |
575 | @retval EFI_CRC_ERROR CRC check fail.\r | |
576 | @retval EFI_TIMEOUT Timeout occurs when reading debug packet.\r | |
4692bc0b | 577 | @retval EFI_DEVICE_ERROR Receive the old or responsed packet.\r |
b422b62c | 578 | \r |
579 | **/\r | |
580 | EFI_STATUS\r | |
581 | ReadRemainingBreakPacket (\r | |
582 | IN DEBUG_PORT_HANDLE Handle,\r | |
583 | IN OUT DEBUG_PACKET_HEADER *DebugHeader\r | |
584 | )\r | |
585 | {\r | |
586 | UINT16 Crc;\r | |
4692bc0b JF |
587 | DEBUG_AGENT_MAILBOX *Mailbox;\r |
588 | \r | |
b422b62c | 589 | //\r |
590 | // Has received start symbol, try to read the rest part\r | |
591 | //\r | |
79ecd2db | 592 | if (DebugPortReadBuffer (Handle, (UINT8 *)DebugHeader + OFFSET_OF (DEBUG_PACKET_HEADER, Command), sizeof (DEBUG_PACKET_HEADER) - OFFSET_OF (DEBUG_PACKET_HEADER, Command), READ_PACKET_TIMEOUT) == 0) {\r |
b422b62c | 593 | //\r |
594 | // Timeout occur, exit\r | |
595 | //\r | |
596 | DebugAgentMsgPrint (DEBUG_AGENT_WARNING, "Timeout in Debug Timer interrupt\n");\r | |
597 | return EFI_TIMEOUT;\r | |
598 | }\r | |
599 | \r | |
600 | Crc = DebugHeader->Crc;\r | |
601 | DebugHeader->Crc = 0;\r | |
602 | if (CalculateCrc16 ((UINT8 *)DebugHeader, DebugHeader->Length, 0) != Crc) {\r | |
603 | DebugAgentMsgPrint (DEBUG_AGENT_WARNING, "Debug Timer CRC (%x) against (%x)\n", Crc, CalculateCrc16 ((UINT8 *) &DebugHeader, DebugHeader->Length, 0));\r | |
604 | DebugAgentDataMsgPrint (DEBUG_AGENT_VERBOSE, FALSE, (UINT8 *)DebugHeader, DebugHeader->Length);\r | |
605 | return EFI_CRC_ERROR;\r | |
606 | }\r | |
4692bc0b | 607 | Mailbox = GetMailboxPointer();\r |
ace354f1 RN |
608 | if (IS_REQUEST (DebugHeader)) {\r |
609 | if (DebugHeader->SequenceNo == (UINT8) (Mailbox->HostSequenceNo + 1)) {\r | |
610 | //\r | |
611 | // Only updagte HostSequenceNo for new command packet \r | |
612 | //\r | |
613 | UpdateMailboxContent (Mailbox, DEBUG_MAILBOX_HOST_SEQUENCE_NO_INDEX, DebugHeader->SequenceNo);\r | |
614 | return EFI_SUCCESS;\r | |
615 | }\r | |
616 | if (DebugHeader->SequenceNo == Mailbox->HostSequenceNo) {\r | |
617 | return EFI_SUCCESS;\r | |
618 | }\r | |
4692bc0b | 619 | }\r |
ace354f1 RN |
620 | \r |
621 | return EFI_DEVICE_ERROR;\r | |
b422b62c | 622 | }\r |
93c0bdec | 623 | \r |
18b144ea | 624 | /**\r |
93c0bdec | 625 | Check if HOST is attached based on Mailbox.\r |
18b144ea | 626 | \r |
93c0bdec | 627 | @retval TRUE HOST is attached.\r |
628 | @retval FALSE HOST is not attached.\r | |
18b144ea | 629 | \r |
93c0bdec | 630 | **/\r |
631 | BOOLEAN\r | |
632 | IsHostAttached (\r | |
633 | VOID\r | |
634 | )\r | |
635 | {\r | |
b422b62c | 636 | return (BOOLEAN) (GetDebugFlag (DEBUG_AGENT_FLAG_HOST_ATTACHED) == 1);\r |
93c0bdec | 637 | }\r |
638 | \r | |
639 | /**\r | |
640 | Set HOST connect flag in Mailbox.\r | |
641 | \r | |
642 | @param[in] Attached Attach status.\r | |
4fe43eb3 | 643 | \r |
18b144ea | 644 | **/\r |
645 | VOID\r | |
93c0bdec | 646 | SetHostAttached (\r |
647 | IN BOOLEAN Attached\r | |
18b144ea | 648 | )\r |
649 | {\r | |
93c0bdec | 650 | DebugAgentMsgPrint (DEBUG_AGENT_INFO, "Attach status is %d\n", Attached);\r |
b422b62c | 651 | SetDebugFlag (DEBUG_AGENT_FLAG_HOST_ATTACHED, (UINT32)Attached);\r |
93c0bdec | 652 | }\r |
653 | \r | |
654 | /**\r | |
655 | Set debug setting of Debug Agent in Mailbox.\r | |
656 | \r | |
657 | @param DebugSetting Pointer to Debug Setting defined by transfer protocol.\r | |
4fe43eb3 | 658 | \r |
93c0bdec | 659 | @retval RETURN_SUCCESS The setting is set successfully.\r |
660 | @retval RETURN_UNSUPPORTED The Key value is not supported.\r | |
661 | \r | |
662 | **/\r | |
663 | RETURN_STATUS\r | |
664 | SetDebugSetting (\r | |
4fe43eb3 | 665 | IN DEBUG_DATA_SET_DEBUG_SETTING *DebugSetting\r |
93c0bdec | 666 | )\r |
667 | {\r | |
668 | RETURN_STATUS Status;\r | |
18b144ea | 669 | \r |
93c0bdec | 670 | Status = RETURN_SUCCESS;\r |
671 | switch (DebugSetting->Key) {\r | |
672 | case DEBUG_AGENT_SETTING_SMM_ENTRY_BREAK:\r | |
b422b62c | 673 | SetDebugFlag (DEBUG_AGENT_FLAG_BREAK_ON_NEXT_SMI, DebugSetting->Value);\r |
93c0bdec | 674 | break;\r |
675 | case DEBUG_AGENT_SETTING_PRINT_ERROR_LEVEL:\r | |
b422b62c | 676 | SetDebugFlag (DEBUG_AGENT_FLAG_PRINT_ERROR_LEVEL, DebugSetting->Value);\r |
677 | break;\r | |
678 | case DEBUG_AGENT_SETTING_BOOT_SCRIPT_ENTRY_BREAK:\r | |
679 | SetDebugFlag (DEBUG_AGENT_FLAG_BREAK_BOOT_SCRIPT, DebugSetting->Value);\r | |
93c0bdec | 680 | break;\r |
681 | default:\r | |
682 | Status = RETURN_UNSUPPORTED;\r | |
18b144ea | 683 | }\r |
93c0bdec | 684 | return Status;\r |
18b144ea | 685 | }\r |
686 | \r | |
687 | /**\r | |
688 | Exectue GO command.\r | |
689 | \r | |
690 | @param[in] CpuContext Pointer to saved CPU context.\r | |
691 | \r | |
692 | **/\r | |
693 | VOID\r | |
694 | CommandGo (\r | |
695 | IN DEBUG_CPU_CONTEXT *CpuContext\r | |
696 | )\r | |
697 | {\r | |
698 | IA32_EFLAGS32 *Eflags;\r | |
699 | \r | |
700 | Eflags = (IA32_EFLAGS32 *) &CpuContext->Eflags;\r | |
701 | Eflags->Bits.TF = 0;\r | |
702 | Eflags->Bits.RF = 1;\r | |
703 | }\r | |
704 | \r | |
705 | /**\r | |
706 | Exectue Stepping command.\r | |
707 | \r | |
708 | @param[in] CpuContext Pointer to saved CPU context.\r | |
709 | \r | |
710 | **/\r | |
711 | VOID\r | |
712 | CommandStepping (\r | |
713 | IN DEBUG_CPU_CONTEXT *CpuContext\r | |
714 | )\r | |
715 | {\r | |
716 | IA32_EFLAGS32 *Eflags;\r | |
717 | \r | |
718 | Eflags = (IA32_EFLAGS32 *) &CpuContext->Eflags;\r | |
719 | Eflags->Bits.TF = 1;\r | |
720 | Eflags->Bits.RF = 1;\r | |
721 | }\r | |
722 | \r | |
723 | /**\r | |
724 | Set debug register for hardware breakpoint.\r | |
725 | \r | |
726 | @param[in] CpuContext Pointer to saved CPU context.\r | |
727 | @param[in] SetHwBreakpoint Hardware breakpoint to be set.\r | |
728 | \r | |
729 | **/\r | |
730 | VOID\r | |
731 | SetDebugRegister (\r | |
732 | IN DEBUG_CPU_CONTEXT *CpuContext,\r | |
733 | IN DEBUG_DATA_SET_HW_BREAKPOINT *SetHwBreakpoint\r | |
734 | )\r | |
735 | {\r | |
736 | UINT8 RegisterIndex;\r | |
737 | UINTN Dr7Value;\r | |
738 | \r | |
739 | RegisterIndex = SetHwBreakpoint->Type.Index;\r | |
740 | \r | |
741 | //\r | |
742 | // Set debug address\r | |
743 | //\r | |
744 | * ((UINTN *) &CpuContext->Dr0 + RegisterIndex) = (UINTN) SetHwBreakpoint->Address;\r | |
745 | \r | |
746 | Dr7Value = CpuContext->Dr7;\r | |
747 | \r | |
748 | //\r | |
749 | // Enable Gx, Lx\r | |
750 | //\r | |
31fc7b4d | 751 | Dr7Value |= (UINTN) (0x3 << (RegisterIndex * 2));\r |
18b144ea | 752 | //\r |
753 | // Set RWx and Lenx\r | |
754 | //\r | |
31fc7b4d | 755 | Dr7Value &= (UINTN) (~(0xf << (16 + RegisterIndex * 4)));\r |
93c0bdec | 756 | Dr7Value |= (UINTN) ((SetHwBreakpoint->Type.Length << 2) | SetHwBreakpoint->Type.Access) << (16 + RegisterIndex * 4);\r |
18b144ea | 757 | //\r |
758 | // Enable GE, LE\r | |
759 | //\r | |
760 | Dr7Value |= 0x300;\r | |
761 | \r | |
762 | CpuContext->Dr7 = Dr7Value;\r | |
763 | }\r | |
764 | \r | |
765 | /**\r | |
766 | Clear debug register for hardware breakpoint.\r | |
767 | \r | |
768 | @param[in] CpuContext Pointer to saved CPU context.\r | |
769 | @param[in] ClearHwBreakpoint Hardware breakpoint to be cleared.\r | |
770 | \r | |
771 | **/\r | |
772 | VOID\r | |
773 | ClearDebugRegister (\r | |
774 | IN DEBUG_CPU_CONTEXT *CpuContext,\r | |
775 | IN DEBUG_DATA_CLEAR_HW_BREAKPOINT *ClearHwBreakpoint\r | |
776 | )\r | |
777 | {\r | |
778 | if ((ClearHwBreakpoint->IndexMask & BIT0) != 0) {\r | |
779 | CpuContext->Dr0 = 0;\r | |
31fc7b4d | 780 | CpuContext->Dr7 &= (UINTN)(~(0x3 << 0));\r |
18b144ea | 781 | }\r |
782 | if ((ClearHwBreakpoint->IndexMask & BIT1) != 0) {\r | |
783 | CpuContext->Dr1 = 0;\r | |
31fc7b4d | 784 | CpuContext->Dr7 &= (UINTN)(~(0x3 << 2));\r |
18b144ea | 785 | }\r |
786 | if ((ClearHwBreakpoint->IndexMask & BIT2) != 0) {\r | |
787 | CpuContext->Dr2 = 0;\r | |
31fc7b4d | 788 | CpuContext->Dr7 &= (UINTN)(~(0x3 << 4));\r |
18b144ea | 789 | }\r |
790 | if ((ClearHwBreakpoint->IndexMask & BIT3) != 0) {\r | |
791 | CpuContext->Dr3 = 0;\r | |
31fc7b4d | 792 | CpuContext->Dr7 &= (UINTN)(~(0x3 << 6));\r |
18b144ea | 793 | }\r |
794 | }\r | |
795 | \r | |
93c0bdec | 796 | \r |
18b144ea | 797 | /**\r |
93c0bdec | 798 | Return the offset of FP / MMX / XMM registers in the FPU saved state by register index.\r |
18b144ea | 799 | \r |
93c0bdec | 800 | @param[in] Index Register index.\r |
801 | @param[out] Width Register width returned.\r | |
802 | \r | |
803 | @return Offset in the FPU Save State.\r | |
804 | \r | |
805 | **/\r | |
806 | UINT16\r | |
807 | ArchReadFxStatOffset (\r | |
808 | IN UINT8 Index,\r | |
809 | OUT UINT8 *Width\r | |
810 | )\r | |
811 | {\r | |
812 | if (Index < SOFT_DEBUGGER_REGISTER_ST0) {\r | |
813 | switch (Index) {\r | |
814 | case SOFT_DEBUGGER_REGISTER_FP_FCW:\r | |
815 | *Width = (UINT8) sizeof (UINT16);\r | |
816 | return OFFSET_OF(DEBUG_DATA_FX_SAVE_STATE, Fcw);\r | |
817 | \r | |
818 | case SOFT_DEBUGGER_REGISTER_FP_FSW:\r | |
819 | *Width = (UINT8) sizeof (UINT16);\r | |
820 | return OFFSET_OF(DEBUG_DATA_FX_SAVE_STATE, Fsw);\r | |
821 | \r | |
822 | case SOFT_DEBUGGER_REGISTER_FP_FTW:\r | |
823 | *Width = (UINT8) sizeof (UINT16);\r | |
824 | return OFFSET_OF(DEBUG_DATA_FX_SAVE_STATE, Ftw);\r | |
825 | \r | |
826 | case SOFT_DEBUGGER_REGISTER_FP_OPCODE:\r | |
827 | *Width = (UINT8) sizeof (UINT16);\r | |
828 | return OFFSET_OF(DEBUG_DATA_FX_SAVE_STATE, Opcode);\r | |
829 | \r | |
830 | case SOFT_DEBUGGER_REGISTER_FP_EIP:\r | |
831 | *Width = (UINT8) sizeof (UINT32);\r | |
832 | return OFFSET_OF(DEBUG_DATA_FX_SAVE_STATE, Eip);\r | |
833 | \r | |
834 | case SOFT_DEBUGGER_REGISTER_FP_CS:\r | |
835 | *Width = (UINT8) sizeof (UINT16);\r | |
836 | return OFFSET_OF(DEBUG_DATA_FX_SAVE_STATE, Cs);\r | |
837 | \r | |
838 | case SOFT_DEBUGGER_REGISTER_FP_DATAOFFSET:\r | |
839 | *Width = (UINT8) sizeof (UINT32);\r | |
840 | return OFFSET_OF(DEBUG_DATA_FX_SAVE_STATE, DataOffset);\r | |
841 | \r | |
842 | case SOFT_DEBUGGER_REGISTER_FP_DS:\r | |
843 | *Width = (UINT8) sizeof (UINT16);\r | |
844 | return OFFSET_OF(DEBUG_DATA_FX_SAVE_STATE, Ds);\r | |
845 | \r | |
846 | case SOFT_DEBUGGER_REGISTER_FP_MXCSR:\r | |
847 | *Width = (UINT8) sizeof (UINT32);\r | |
848 | return OFFSET_OF(DEBUG_DATA_FX_SAVE_STATE, Mxcsr);\r | |
849 | \r | |
850 | case SOFT_DEBUGGER_REGISTER_FP_MXCSR_MASK:\r | |
851 | *Width = (UINT8) sizeof (UINT32);\r | |
852 | return OFFSET_OF(DEBUG_DATA_FX_SAVE_STATE, Mxcsr_Mask);\r | |
853 | }\r | |
854 | }\r | |
855 | \r | |
856 | if (Index <= SOFT_DEBUGGER_REGISTER_ST7) {\r | |
857 | *Width = 10;\r | |
858 | } else if (Index <= SOFT_DEBUGGER_REGISTER_XMM15) {\r | |
859 | *Width = 16;\r | |
860 | } else {\r | |
861 | //\r | |
862 | // MMX register\r | |
863 | //\r | |
864 | *Width = 8;\r | |
865 | Index -= SOFT_DEBUGGER_REGISTER_MM0 - SOFT_DEBUGGER_REGISTER_ST0;\r | |
866 | }\r | |
867 | \r | |
868 | return OFFSET_OF (DEBUG_DATA_FX_SAVE_STATE, St0Mm0) + (Index - SOFT_DEBUGGER_REGISTER_ST0) * 16;\r | |
869 | }\r | |
870 | \r | |
871 | /**\r | |
872 | Return the pointer of the register value in the CPU saved context.\r | |
873 | \r | |
874 | @param[in] CpuContext Pointer to saved CPU context.\r | |
875 | @param[in] Index Register index value.\r | |
876 | @param[out] Width Data width to read.\r | |
877 | \r | |
878 | @return The pointer in the CPU saved context.\r | |
879 | \r | |
880 | **/\r | |
881 | UINT8 *\r | |
882 | ArchReadRegisterBuffer (\r | |
883 | IN DEBUG_CPU_CONTEXT *CpuContext,\r | |
884 | IN UINT8 Index,\r | |
885 | OUT UINT8 *Width\r | |
886 | )\r | |
887 | {\r | |
888 | UINT8 *Buffer;\r | |
889 | \r | |
890 | if (Index < SOFT_DEBUGGER_REGISTER_FP_BASE) {\r | |
891 | Buffer = (UINT8 *) CpuContext + OFFSET_OF (DEBUG_CPU_CONTEXT, Dr0) + Index * sizeof (UINTN);\r | |
892 | *Width = (UINT8) sizeof (UINTN);\r | |
893 | } else {\r | |
894 | //\r | |
895 | // FPU/MMX/XMM registers\r | |
896 | //\r | |
897 | Buffer = (UINT8 *) CpuContext + OFFSET_OF (DEBUG_CPU_CONTEXT, FxSaveState) + ArchReadFxStatOffset (Index, Width);\r | |
898 | }\r | |
899 | \r | |
900 | return Buffer;\r | |
901 | }\r | |
902 | \r | |
903 | /**\r | |
904 | Send the packet without data to HOST.\r | |
905 | \r | |
906 | @param[in] CommandType Type of Command.\r | |
b422b62c | 907 | @param[in] SequenceNo Sequence number.\r |
18b144ea | 908 | \r |
909 | **/\r | |
910 | VOID\r | |
93c0bdec | 911 | SendPacketWithoutData (\r |
b422b62c | 912 | IN UINT8 CommandType,\r |
913 | IN UINT8 SequenceNo\r | |
18b144ea | 914 | )\r |
915 | {\r | |
93c0bdec | 916 | DEBUG_PACKET_HEADER DebugHeader;\r |
18b144ea | 917 | DEBUG_PORT_HANDLE Handle;\r |
918 | \r | |
919 | Handle = GetDebugPortHandle();\r | |
920 | \r | |
93c0bdec | 921 | DebugHeader.StartSymbol = DEBUG_STARTING_SYMBOL_NORMAL;\r |
922 | DebugHeader.Command = CommandType;\r | |
923 | DebugHeader.Length = sizeof (DEBUG_PACKET_HEADER);\r | |
b422b62c | 924 | DebugHeader.SequenceNo = SequenceNo;\r |
925 | DebugHeader.Crc = 0;\r | |
926 | DebugHeader.Crc = CalculateCrc16 ((UINT8 *)&DebugHeader, sizeof (DEBUG_PACKET_HEADER), 0);\r | |
18b144ea | 927 | \r |
93c0bdec | 928 | DebugAgentDataMsgPrint (DEBUG_AGENT_VERBOSE, TRUE, (UINT8 *) &DebugHeader, DebugHeader.Length);\r |
929 | DebugPortWriteBuffer (Handle, (UINT8 *) &DebugHeader, DebugHeader.Length);\r | |
930 | }\r | |
931 | \r | |
932 | /**\r | |
933 | Send acknowledge packet to HOST.\r | |
934 | \r | |
935 | @param[in] AckCommand Type of Acknowledge packet.\r | |
936 | \r | |
937 | **/\r | |
938 | VOID\r | |
939 | SendAckPacket (\r | |
940 | IN UINT8 AckCommand\r | |
941 | )\r | |
942 | {\r | |
b422b62c | 943 | UINT8 SequenceNo;\r |
944 | DEBUG_AGENT_MAILBOX *Mailbox;\r | |
945 | \r | |
93c0bdec | 946 | if (AckCommand != DEBUG_COMMAND_OK) {\r |
b422b62c | 947 | //\r |
948 | // This is not ACK OK packet\r | |
949 | //\r | |
93c0bdec | 950 | DebugAgentMsgPrint (DEBUG_AGENT_ERROR, "Send ACK(%d)\n", AckCommand);\r |
951 | }\r | |
b422b62c | 952 | Mailbox = GetMailboxPointer();\r |
953 | SequenceNo = Mailbox->HostSequenceNo;\r | |
954 | DebugAgentMsgPrint (DEBUG_AGENT_INFO, "SendAckPacket: SequenceNo = %x\n", SequenceNo);\r | |
955 | SendPacketWithoutData (AckCommand, SequenceNo);\r | |
956 | UpdateMailboxContent (Mailbox, DEBUG_MAILBOX_LAST_ACK, AckCommand);\r | |
18b144ea | 957 | }\r |
958 | \r | |
d9044ec5 RN |
959 | /**\r |
960 | Decompress the Data in place.\r | |
961 | \r | |
962 | @param[in, out] Data The compressed data buffer.\r | |
963 | The buffer is assumed large enough to hold the uncompressed data.\r | |
964 | @param[in] Length The length of the compressed data buffer.\r | |
965 | \r | |
966 | @return The length of the uncompressed data buffer.\r | |
967 | **/\r | |
968 | UINT8\r | |
969 | DecompressDataInPlace (\r | |
970 | IN OUT UINT8 *Data,\r | |
971 | IN UINTN Length\r | |
972 | )\r | |
973 | {\r | |
974 | UINTN Index;\r | |
975 | UINT16 LastChar;\r | |
976 | UINTN LastCharCount;\r | |
977 | UINT8 CurrentChar;\r | |
978 | \r | |
979 | LastChar = (UINT16) -1;\r | |
980 | LastCharCount = 0;\r | |
981 | for (Index = 0; Index < Length; Index++) {\r | |
982 | CurrentChar = Data[Index];\r | |
983 | if (LastCharCount == 2) {\r | |
984 | LastCharCount = 0;\r | |
985 | CopyMem (&Data[Index + CurrentChar], &Data[Index + 1], Length - Index - 1);\r | |
986 | SetMem (&Data[Index], CurrentChar, (UINT8) LastChar);\r | |
987 | LastChar = (UINT16) -1;\r | |
988 | Index += CurrentChar - 1;\r | |
989 | Length += CurrentChar - 1;\r | |
990 | } else {\r | |
991 | if (LastChar != CurrentChar) {\r | |
992 | LastCharCount = 0;\r | |
993 | }\r | |
994 | LastCharCount++;\r | |
995 | LastChar = CurrentChar;\r | |
996 | }\r | |
997 | }\r | |
998 | \r | |
999 | ASSERT (Length <= DEBUG_DATA_MAXIMUM_REAL_DATA);\r | |
1000 | \r | |
1001 | return (UINT8) Length;\r | |
1002 | }\r | |
1003 | \r | |
18b144ea | 1004 | /**\r |
b422b62c | 1005 | Receive valid packet from HOST.\r |
18b144ea | 1006 | \r |
b422b62c | 1007 | @param[out] InputPacket Buffer to receive packet.\r |
1008 | @param[out] BreakReceived TRUE means break-in symbol received.\r | |
1009 | FALSE means break-in symbol not received.\r | |
1010 | @param[out] IncompatibilityFlag If IncompatibilityFlag is not NULL, return\r | |
1011 | TRUE: Compatible packet received.\r | |
1012 | FALSE: Incompatible packet received.\r | |
1013 | @param[in] Timeout Time out value to wait for acknowlege from HOST.\r | |
1014 | The unit is microsecond.\r | |
1015 | @param[in] SkipStartSymbol TRUE: Skip time out when reading start symbol.\r | |
1016 | FALSE: Does not Skip time out when reading start symbol.\r | |
18b144ea | 1017 | \r |
b422b62c | 1018 | @retval RETURN_SUCCESS A valid package was reveived in InputPacket.\r |
1019 | @retval RETURN_TIMEOUT Timeout occurs.\r | |
18b144ea | 1020 | \r |
1021 | **/\r | |
1022 | RETURN_STATUS\r | |
b422b62c | 1023 | ReceivePacket (\r |
1024 | OUT UINT8 *InputPacket,\r | |
1025 | OUT BOOLEAN *BreakReceived,\r | |
1026 | OUT BOOLEAN *IncompatibilityFlag, OPTIONAL\r | |
1027 | IN UINTN Timeout,\r | |
1028 | IN BOOLEAN SkipStartSymbol\r | |
18b144ea | 1029 | )\r |
1030 | {\r | |
b422b62c | 1031 | DEBUG_PACKET_HEADER *DebugHeader;\r |
1032 | UINTN Received;\r | |
1033 | DEBUG_PORT_HANDLE Handle;\r | |
1034 | UINT16 Crc;\r | |
1035 | UINTN TimeoutForStartSymbol;\r | |
18b144ea | 1036 | \r |
1037 | Handle = GetDebugPortHandle();\r | |
b422b62c | 1038 | if (SkipStartSymbol) {\r |
1039 | TimeoutForStartSymbol = 0;\r | |
1040 | } else {\r | |
1041 | TimeoutForStartSymbol = Timeout;\r | |
1042 | }\r | |
4fe43eb3 | 1043 | \r |
b422b62c | 1044 | DebugHeader = (DEBUG_PACKET_HEADER *) InputPacket;\r |
18b144ea | 1045 | while (TRUE) {\r |
b422b62c | 1046 | //\r |
1047 | // Find the valid start symbol\r | |
1048 | //\r | |
1049 | Received = DebugPortReadBuffer (Handle, &DebugHeader->StartSymbol, sizeof (DebugHeader->StartSymbol), TimeoutForStartSymbol);\r | |
1050 | if (Received < sizeof (DebugHeader->StartSymbol)) {\r | |
1051 | DebugAgentMsgPrint (DEBUG_AGENT_WARNING, "DebugPortReadBuffer(StartSymbol) timeout\n");\r | |
18b144ea | 1052 | return RETURN_TIMEOUT;\r |
1053 | }\r | |
b422b62c | 1054 | \r |
d9044ec5 | 1055 | if ((DebugHeader->StartSymbol != DEBUG_STARTING_SYMBOL_NORMAL) && (DebugHeader->StartSymbol != DEBUG_STARTING_SYMBOL_COMPRESS)) {\r |
b422b62c | 1056 | DebugAgentMsgPrint (DEBUG_AGENT_WARNING, "Invalid start symbol received [%02x]\n", DebugHeader->StartSymbol);\r |
1057 | continue;\r | |
18b144ea | 1058 | }\r |
18b144ea | 1059 | \r |
93c0bdec | 1060 | //\r |
b422b62c | 1061 | // Read Package header till field Length\r |
93c0bdec | 1062 | //\r |
b422b62c | 1063 | Received = DebugPortReadBuffer (\r |
1064 | Handle,\r | |
d9044ec5 | 1065 | (UINT8 *) DebugHeader + OFFSET_OF (DEBUG_PACKET_HEADER, Command),\r |
b422b62c | 1066 | OFFSET_OF (DEBUG_PACKET_HEADER, Length) + sizeof (DebugHeader->Length) - sizeof (DebugHeader->StartSymbol),\r |
1067 | Timeout\r | |
1068 | );\r | |
1069 | if (Received == 0) {\r | |
1070 | DebugAgentMsgPrint (DEBUG_AGENT_ERROR, "DebugPortReadBuffer(Command) timeout\n");\r | |
93c0bdec | 1071 | return RETURN_TIMEOUT;\r |
1072 | }\r | |
b422b62c | 1073 | if (DebugHeader->Length < sizeof (DEBUG_PACKET_HEADER)) {\r |
1074 | if (IncompatibilityFlag != NULL) {\r | |
1075 | //\r | |
1076 | // This is one old version debug packet format, set Incompatibility flag\r | |
1077 | //\r | |
1078 | *IncompatibilityFlag = TRUE;\r | |
1079 | } else {\r | |
1080 | //\r | |
1081 | // Skip the bad small packet\r | |
1082 | //\r | |
1083 | continue;\r | |
1084 | }\r | |
1085 | } else {\r | |
1086 | //\r | |
1087 | // Read the payload data include the CRC field\r | |
1088 | //\r | |
1089 | Received = DebugPortReadBuffer (Handle, &DebugHeader->SequenceNo, (UINT8) (DebugHeader->Length - OFFSET_OF (DEBUG_PACKET_HEADER, SequenceNo)), Timeout);\r | |
1090 | if (Received == 0) {\r | |
1091 | DebugAgentMsgPrint (DEBUG_AGENT_ERROR, "DebugPortReadBuffer(SequenceNo) timeout\n");\r | |
1092 | return RETURN_TIMEOUT;\r | |
1093 | }\r | |
1094 | //\r | |
1095 | // Calculate the CRC of Debug Packet\r | |
1096 | //\r | |
1097 | Crc = DebugHeader->Crc;\r | |
1098 | DebugHeader->Crc = 0;\r | |
1099 | if (Crc == CalculateCrc16 ((UINT8 *) DebugHeader, DebugHeader->Length, 0)) {\r | |
1100 | break;\r | |
1101 | }\r | |
1102 | DebugAgentMsgPrint (DEBUG_AGENT_WARNING, "CRC Error (received CRC is %x)\n", Crc);\r | |
1103 | DebugAgentDataMsgPrint (DEBUG_AGENT_VERBOSE, FALSE, (UINT8 *) DebugHeader, DebugHeader->Length);\r | |
1104 | }\r | |
93c0bdec | 1105 | }\r |
1106 | \r | |
b422b62c | 1107 | DebugAgentDataMsgPrint (DEBUG_AGENT_VERBOSE, FALSE, (UINT8 *) DebugHeader, DebugHeader->Length);\r |
1108 | \r | |
d9044ec5 RN |
1109 | if (DebugHeader->StartSymbol == DEBUG_STARTING_SYMBOL_COMPRESS) {\r |
1110 | DebugHeader->StartSymbol = DEBUG_STARTING_SYMBOL_NORMAL;\r | |
1111 | DebugHeader->Length = DecompressDataInPlace (\r | |
1112 | (UINT8 *) (DebugHeader + 1), DebugHeader->Length - sizeof (DEBUG_PACKET_HEADER)\r | |
1113 | ) + sizeof (DEBUG_PACKET_HEADER);\r | |
1114 | }\r | |
18b144ea | 1115 | return RETURN_SUCCESS;\r |
1116 | }\r | |
1117 | \r | |
1118 | /**\r | |
1119 | Receive acknowledge packet OK from HOST in specified time.\r | |
1120 | \r | |
b422b62c | 1121 | @param[in] Command The command type issued by TARGET.\r |
1122 | @param[in] Timeout Time out value to wait for acknowlege from HOST.\r | |
1123 | The unit is microsecond.\r | |
1124 | @param[out] BreakReceived If BreakReceived is not NULL,\r | |
1125 | TRUE is retured if break-in symbol received.\r | |
1126 | FALSE is retured if break-in symbol not received.\r | |
1127 | @param[out] IncompatibilityFlag If IncompatibilityFlag is not NULL, return\r | |
1128 | TRUE: Compatible packet received.\r | |
1129 | FALSE: Incompatible packet received.\r | |
18b144ea | 1130 | \r |
1131 | @retval RETRUEN_SUCCESS Succeed to receive acknowlege packet from HOST,\r | |
1132 | the type of acknowlege packet saved in Ack.\r | |
1133 | @retval RETURN_TIMEOUT Specified timeout value was up.\r | |
1134 | \r | |
1135 | **/\r | |
1136 | RETURN_STATUS\r | |
93c0bdec | 1137 | SendCommandAndWaitForAckOK (\r |
1138 | IN UINT8 Command,\r | |
1139 | IN UINTN Timeout,\r | |
1140 | OUT BOOLEAN *BreakReceived, OPTIONAL\r | |
b422b62c | 1141 | OUT BOOLEAN *IncompatibilityFlag OPTIONAL\r |
18b144ea | 1142 | )\r |
1143 | {\r | |
93c0bdec | 1144 | RETURN_STATUS Status;\r |
b422b62c | 1145 | UINT8 InputPacketBuffer[DEBUG_DATA_UPPER_LIMIT];\r |
1146 | DEBUG_PACKET_HEADER *DebugHeader;\r | |
1147 | UINT8 SequenceNo;\r | |
1148 | UINT8 HostSequenceNo;\r | |
1149 | UINT8 RetryCount;\r | |
1150 | \r | |
1151 | RetryCount = 3;\r | |
1152 | DebugHeader = (DEBUG_PACKET_HEADER *) InputPacketBuffer;\r | |
1153 | Status = RETURN_TIMEOUT;\r | |
1154 | while (RetryCount > 0) {\r | |
1155 | SequenceNo = GetMailboxPointer()->SequenceNo;\r | |
1156 | HostSequenceNo = GetMailboxPointer()->HostSequenceNo;\r | |
1157 | SendPacketWithoutData (Command, SequenceNo);\r | |
1158 | Status = ReceivePacket ((UINT8 *) DebugHeader, BreakReceived, IncompatibilityFlag, Timeout, FALSE);\r | |
1159 | if (Status == RETURN_TIMEOUT) {\r | |
1160 | if (Command == DEBUG_COMMAND_INIT_BREAK) {\r | |
1161 | RetryCount--;\r | |
1162 | } else {\r | |
1163 | DebugAgentMsgPrint (DEBUG_AGENT_WARNING, "TARGET: Timeout when waiting for ACK packet.\n");\r | |
1164 | }\r | |
93c0bdec | 1165 | continue;\r |
1166 | }\r | |
b422b62c | 1167 | ASSERT_EFI_ERROR (Status);\r |
93c0bdec | 1168 | //\r |
b422b62c | 1169 | // Status == RETURN_SUCCESS\r |
93c0bdec | 1170 | //\r |
b422b62c | 1171 | if (DebugHeader->Command == DEBUG_COMMAND_OK && DebugHeader->SequenceNo == SequenceNo) {\r |
1172 | //\r | |
1173 | // Received Ack OK\r | |
1174 | //\r | |
1175 | UpdateMailboxContent (GetMailboxPointer(), DEBUG_MAILBOX_SEQUENCE_NO_INDEX, ++SequenceNo);\r | |
1176 | return Status;\r | |
18b144ea | 1177 | }\r |
b422b62c | 1178 | if (DebugHeader->Command == DEBUG_COMMAND_GO && (DebugHeader->SequenceNo == HostSequenceNo || Command == DEBUG_COMMAND_INIT_BREAK)) {\r |
1179 | //\r | |
1180 | // Received Old GO\r | |
1181 | //\r | |
1182 | if (Command == DEBUG_COMMAND_INIT_BREAK) {\r | |
1183 | DebugAgentMsgPrint (DEBUG_AGENT_WARNING, "TARGET: Receive GO() in last boot\n");\r | |
1184 | }\r | |
1185 | SendPacketWithoutData (DEBUG_COMMAND_OK, DebugHeader->SequenceNo);\r | |
93c0bdec | 1186 | }\r |
18b144ea | 1187 | }\r |
1188 | \r | |
b422b62c | 1189 | ASSERT (Command == DEBUG_COMMAND_INIT_BREAK);\r |
1190 | return Status;\r | |
18b144ea | 1191 | }\r |
1192 | \r | |
1193 | /**\r | |
1194 | Get current break cause.\r | |
1195 | \r | |
1196 | @param[in] Vector Vector value of exception or interrupt.\r | |
1197 | @param[in] CpuContext Pointer to save CPU context.\r | |
1198 | \r | |
1199 | @return The type of break cause defined by XXXX\r | |
1200 | \r | |
1201 | **/\r | |
1202 | UINT8\r | |
1203 | GetBreakCause (\r | |
1204 | IN UINTN Vector,\r | |
1205 | IN DEBUG_CPU_CONTEXT *CpuContext\r | |
1206 | )\r | |
1207 | {\r | |
1208 | UINT8 Cause;\r | |
1209 | \r | |
1210 | Cause = DEBUG_DATA_BREAK_CAUSE_UNKNOWN;\r | |
1211 | \r | |
1212 | switch (Vector) {\r | |
1213 | case DEBUG_INT1_VECTOR:\r | |
1214 | case DEBUG_INT3_VECTOR:\r | |
1215 | \r | |
1216 | if (Vector == DEBUG_INT1_VECTOR) {\r | |
1217 | //\r | |
1218 | // INT 1\r | |
1219 | //\r | |
1220 | if ((CpuContext->Dr6 & BIT14) != 0) {\r | |
1221 | Cause = DEBUG_DATA_BREAK_CAUSE_STEPPING;\r | |
0a16169b | 1222 | //\r |
1223 | // If it's single step, no need to check DR0, to ensure single step work in PeCoffExtraActionLib\r | |
1224 | // (right after triggering a breakpoint to report image load/unload).\r | |
1225 | //\r | |
1226 | return Cause;\r | |
18b144ea | 1227 | \r |
1228 | } else {\r | |
1229 | Cause = DEBUG_DATA_BREAK_CAUSE_HW_BREAKPOINT;\r | |
1230 | }\r | |
1231 | } else {\r | |
1232 | //\r | |
1233 | // INT 3\r | |
1234 | //\r | |
1235 | Cause = DEBUG_DATA_BREAK_CAUSE_SW_BREAKPOINT;\r | |
1236 | }\r | |
1237 | \r | |
1238 | switch (CpuContext->Dr0) {\r | |
1239 | case IMAGE_LOAD_SIGNATURE:\r | |
1240 | case IMAGE_UNLOAD_SIGNATURE:\r | |
1241 | \r | |
1242 | if (CpuContext->Dr3 == IO_PORT_BREAKPOINT_ADDRESS) {\r | |
1243 | \r | |
4fe43eb3 | 1244 | Cause = (UINT8) ((CpuContext->Dr0 == IMAGE_LOAD_SIGNATURE) ?\r |
18b144ea | 1245 | DEBUG_DATA_BREAK_CAUSE_IMAGE_LOAD : DEBUG_DATA_BREAK_CAUSE_IMAGE_UNLOAD);\r |
1246 | }\r | |
1247 | break;\r | |
1248 | \r | |
1249 | case SOFT_INTERRUPT_SIGNATURE:\r | |
4fe43eb3 | 1250 | \r |
18b144ea | 1251 | if (CpuContext->Dr1 == MEMORY_READY_SIGNATURE) {\r |
1252 | Cause = DEBUG_DATA_BREAK_CAUSE_MEMORY_READY;\r | |
1253 | CpuContext->Dr0 = 0;\r | |
1254 | } else if (CpuContext->Dr1 == SYSTEM_RESET_SIGNATURE) {\r | |
1255 | Cause = DEBUG_DATA_BREAK_CAUSE_SYSTEM_RESET;\r | |
1256 | CpuContext->Dr0 = 0;\r | |
1257 | }\r | |
1258 | break;\r | |
1259 | \r | |
1260 | default:\r | |
1261 | break;\r | |
1262 | \r | |
1263 | }\r | |
1264 | \r | |
1265 | break;\r | |
1266 | \r | |
1267 | case DEBUG_TIMER_VECTOR:\r | |
1268 | Cause = DEBUG_DATA_BREAK_CAUSE_USER_HALT;\r | |
1269 | break;\r | |
1270 | \r | |
1271 | default:\r | |
1272 | if (Vector < 20) {\r | |
b422b62c | 1273 | if (GetDebugFlag (DEBUG_AGENT_FLAG_STEPPING) == 1) {\r |
93c0bdec | 1274 | //\r |
1275 | // If stepping command is executing\r | |
1276 | //\r | |
1277 | Cause = DEBUG_DATA_BREAK_CAUSE_STEPPING;\r | |
1278 | } else {\r | |
1279 | Cause = DEBUG_DATA_BREAK_CAUSE_EXCEPTION;\r | |
1280 | }\r | |
18b144ea | 1281 | }\r |
1282 | break;\r | |
1283 | }\r | |
1284 | \r | |
1285 | return Cause;\r | |
1286 | }\r | |
1287 | \r | |
1288 | /**\r | |
845a7fe0 | 1289 | Copy memory from source to destination with specified width.\r |
1290 | \r | |
1291 | @param[out] Dest A pointer to the destination buffer of the memory copy.\r | |
1292 | @param[in] Src A pointer to the source buffer of the memory copy.\r | |
1293 | @param[in] Count The number of data with specified width to copy from source to destination.\r | |
1294 | @param[in] Width Data width in byte.\r | |
1295 | \r | |
1296 | **/\r | |
1297 | VOID\r | |
1298 | CopyMemByWidth (\r | |
1299 | OUT UINT8 *Dest,\r | |
1300 | IN UINT8 *Src,\r | |
1301 | IN UINT16 Count,\r | |
1302 | IN UINT8 Width\r | |
1303 | )\r | |
1304 | {\r | |
1305 | UINT8 *Destination;\r | |
1306 | UINT8 *Source;\r | |
1307 | INT8 Step;\r | |
1308 | \r | |
1309 | if (Src > Dest) {\r | |
1310 | Destination = Dest;\r | |
1311 | Source = Src;\r | |
1312 | Step = Width;\r | |
1313 | } else {\r | |
1314 | //\r | |
1315 | // Copy memory from tail to avoid memory overlap\r | |
1316 | //\r | |
1317 | Destination = Dest + (Count - 1) * Width;\r | |
1318 | Source = Src + (Count - 1) * Width;\r | |
1319 | Step = -Width;\r | |
1320 | }\r | |
1321 | \r | |
1322 | while (Count-- != 0) {\r | |
1323 | switch (Width) {\r | |
1324 | case 1:\r | |
1325 | *(UINT8 *) Destination = MmioRead8 ((UINTN) Source);\r | |
1326 | break;\r | |
1327 | case 2:\r | |
1328 | *(UINT16 *) Destination = MmioRead16 ((UINTN) Source);\r | |
1329 | break;\r | |
1330 | case 4:\r | |
1331 | *(UINT32 *) Destination = MmioRead32 ((UINTN) Source);\r | |
1332 | break;\r | |
1333 | case 8:\r | |
1334 | *(UINT64 *) Destination = MmioRead64 ((UINTN) Source);\r | |
1335 | break;\r | |
1336 | default:\r | |
1337 | ASSERT (FALSE);\r | |
1338 | }\r | |
1339 | Source += Step;\r | |
1340 | Destination += Step;\r | |
1341 | }\r | |
1342 | }\r | |
1343 | \r | |
d9044ec5 RN |
1344 | /**\r |
1345 | Compress the data buffer but do not modify the original buffer.\r | |
1346 | \r | |
1347 | The compressed data is directly send to the debug channel.\r | |
1348 | Compressing in place doesn't work because the data may become larger\r | |
1349 | during compressing phase. ("3 3 ..." --> "3 3 0 ...")\r | |
1350 | The routine is expected to be called three times:\r | |
1351 | 1. Compute the length of the compressed data buffer;\r | |
1352 | 2. Compute the CRC of the compressed data buffer;\r | |
1353 | 3. Compress the data and send to the debug channel.\r | |
1354 | \r | |
1355 | @param[in] Data The data buffer.\r | |
1356 | @param[in] Length The length of the data buffer.\r | |
1357 | @param[out] CompressedLength Return the length of the compressed data buffer.\r | |
1358 | It may be larger than the Length in some cases.\r | |
1359 | @param[out] CompressedCrc Return the CRC of the compressed data buffer.\r | |
1360 | @param[in] Handle The debug channel handle to send the compressed data buffer.\r | |
1361 | **/\r | |
1362 | VOID\r | |
1363 | CompressDataThenSend (\r | |
1364 | IN UINT8 *Data,\r | |
1365 | IN UINT8 Length,\r | |
1366 | OUT UINTN *CompressedLength, OPTIONAL\r | |
1367 | OUT UINT16 *CompressedCrc, OPTIONAL\r | |
1368 | IN DEBUG_PORT_HANDLE Handle OPTIONAL\r | |
1369 | )\r | |
1370 | {\r | |
1371 | UINTN Index;\r | |
1372 | UINT8 LastChar;\r | |
1373 | UINT8 LastCharCount;\r | |
1374 | UINT8 CurrentChar;\r | |
1375 | UINTN CompressedIndex;\r | |
1376 | \r | |
1377 | ASSERT (Length > 0);\r | |
1378 | \r | |
1379 | LastChar = Data[0] + 1; // Just ensure it's different from the first byte.\r | |
1380 | LastCharCount = 0;\r | |
1381 | \r | |
1382 | for (Index = 0, CompressedIndex = 0; Index <= Length; Index++) {\r | |
1383 | if (Index < Length) {\r | |
1384 | CurrentChar = Data[Index];\r | |
1385 | } else {\r | |
1386 | CurrentChar = (UINT8) LastChar + 1; // just ensure it's different from LastChar\r | |
1387 | }\r | |
1388 | if (LastChar != CurrentChar) {\r | |
1389 | if (LastCharCount == 1) {\r | |
1390 | CompressedIndex++;\r | |
1391 | if (CompressedCrc != NULL) {\r | |
1392 | *CompressedCrc = CalculateCrc16 (&LastChar, 1, *CompressedCrc);\r | |
1393 | }\r | |
1394 | if (Handle != NULL) {\r | |
1395 | DebugPortWriteBuffer (Handle, &LastChar, 1);\r | |
1396 | }\r | |
1397 | \r | |
1398 | } else if (LastCharCount >= 2) {\r | |
1399 | CompressedIndex += 3;\r | |
1400 | LastCharCount -= 2;\r | |
1401 | if (CompressedCrc != NULL) {\r | |
1402 | *CompressedCrc = CalculateCrc16 (&LastChar, 1, *CompressedCrc);\r | |
1403 | *CompressedCrc = CalculateCrc16 (&LastChar, 1, *CompressedCrc);\r | |
1404 | *CompressedCrc = CalculateCrc16 (&LastCharCount, 1, *CompressedCrc);\r | |
1405 | }\r | |
1406 | if (Handle != NULL) {\r | |
1407 | DebugPortWriteBuffer (Handle, &LastChar, 1);\r | |
1408 | DebugPortWriteBuffer (Handle, &LastChar, 1);\r | |
1409 | DebugPortWriteBuffer (Handle, &LastCharCount, 1);\r | |
1410 | }\r | |
1411 | }\r | |
1412 | LastCharCount = 0;\r | |
1413 | }\r | |
1414 | LastCharCount++;\r | |
1415 | LastChar = CurrentChar;\r | |
1416 | }\r | |
1417 | \r | |
1418 | if (CompressedLength != NULL) {\r | |
1419 | *CompressedLength = CompressedIndex;\r | |
1420 | }\r | |
1421 | }\r | |
1422 | \r | |
845a7fe0 | 1423 | /**\r |
1424 | Read memory with speicifed width and send packet with response data to HOST.\r | |
18b144ea | 1425 | \r |
18b144ea | 1426 | @param[in] Data Pointer to response data buffer.\r |
845a7fe0 | 1427 | @param[in] Count The number of data with specified Width.\r |
1428 | @param[in] Width Data width in byte.\r | |
d9044ec5 RN |
1429 | @param[in] DebugHeader Pointer to a buffer for creating response packet and receiving ACK packet,\r |
1430 | to minimize the stack usage.\r | |
18b144ea | 1431 | \r |
1432 | @retval RETURN_SUCCESS Response data was sent successfully.\r | |
18b144ea | 1433 | \r |
1434 | **/\r | |
1435 | RETURN_STATUS\r | |
845a7fe0 | 1436 | ReadMemoryAndSendResponsePacket (\r |
d9044ec5 RN |
1437 | IN UINT8 *Data,\r |
1438 | IN UINT16 Count,\r | |
1439 | IN UINT8 Width,\r | |
1440 | IN DEBUG_PACKET_HEADER *DebugHeader\r | |
18b144ea | 1441 | )\r |
1442 | {\r | |
b422b62c | 1443 | RETURN_STATUS Status;\r |
18b144ea | 1444 | BOOLEAN LastPacket;\r |
18b144ea | 1445 | DEBUG_PORT_HANDLE Handle;\r |
b422b62c | 1446 | UINT8 SequenceNo;\r |
845a7fe0 | 1447 | UINTN RemainingDataSize;\r |
d9044ec5 RN |
1448 | UINT8 CurrentDataSize;\r |
1449 | UINTN CompressedDataSize;\r | |
18b144ea | 1450 | \r |
1451 | Handle = GetDebugPortHandle();\r | |
1452 | \r | |
845a7fe0 | 1453 | RemainingDataSize = Count * Width;\r |
18b144ea | 1454 | while (TRUE) {\r |
b422b62c | 1455 | SequenceNo = GetMailboxPointer()->HostSequenceNo;\r |
845a7fe0 | 1456 | if (RemainingDataSize <= DEBUG_DATA_MAXIMUM_REAL_DATA) {\r |
1457 | //\r | |
1458 | // If the remaining data is less one real packet size, this is the last data packet\r | |
1459 | //\r | |
d9044ec5 | 1460 | CurrentDataSize = (UINT8) RemainingDataSize;\r |
18b144ea | 1461 | LastPacket = TRUE;\r |
845a7fe0 | 1462 | DebugHeader->Command = DEBUG_COMMAND_OK;\r |
18b144ea | 1463 | } else {\r |
845a7fe0 | 1464 | //\r |
1465 | // Data is too larger to be sent in one packet, calculate the actual data size could\r | |
1466 | // be sent in one Maximum data packet\r | |
1467 | //\r | |
1468 | CurrentDataSize = (DEBUG_DATA_MAXIMUM_REAL_DATA / Width) * Width;\r | |
18b144ea | 1469 | LastPacket = FALSE;\r |
845a7fe0 | 1470 | DebugHeader->Command = DEBUG_COMMAND_IN_PROGRESS;\r |
18b144ea | 1471 | }\r |
93c0bdec | 1472 | //\r |
845a7fe0 | 1473 | // Construct the rest Debug header\r |
1474 | //\r | |
d9044ec5 RN |
1475 | DebugHeader->StartSymbol = DEBUG_STARTING_SYMBOL_NORMAL;\r |
1476 | DebugHeader->Length = CurrentDataSize + sizeof (DEBUG_PACKET_HEADER);\r | |
1477 | DebugHeader->SequenceNo = SequenceNo;\r | |
1478 | DebugHeader->Crc = 0;\r | |
1479 | CopyMemByWidth ((UINT8 *) (DebugHeader + 1), Data, CurrentDataSize / Width, Width);\r | |
1480 | \r | |
845a7fe0 | 1481 | //\r |
d9044ec5 RN |
1482 | // Compression/decompression support was added since revision 0.4.\r |
1483 | // Revision 0.3 shouldn't compress the packet.\r | |
93c0bdec | 1484 | //\r |
d9044ec5 RN |
1485 | if (DEBUG_AGENT_REVISION >= DEBUG_AGENT_REVISION_04) {\r |
1486 | //\r | |
1487 | // Get the compressed data size without modifying the packet.\r | |
1488 | //\r | |
1489 | CompressDataThenSend (\r | |
1490 | (UINT8 *) (DebugHeader + 1),\r | |
1491 | CurrentDataSize,\r | |
1492 | &CompressedDataSize,\r | |
1493 | NULL,\r | |
1494 | NULL\r | |
1495 | );\r | |
1496 | } else {\r | |
1497 | CompressedDataSize = CurrentDataSize;\r | |
1498 | }\r | |
1499 | if (CompressedDataSize < CurrentDataSize) {\r | |
1500 | DebugHeader->Length = (UINT8) CompressedDataSize + sizeof (DEBUG_PACKET_HEADER);\r | |
1501 | DebugHeader->StartSymbol = DEBUG_STARTING_SYMBOL_COMPRESS;\r | |
1502 | //\r | |
1503 | // Compute the CRC of the packet head without modifying the packet.\r | |
1504 | //\r | |
1505 | DebugHeader->Crc = CalculateCrc16 ((UINT8 *) DebugHeader, sizeof (DEBUG_PACKET_HEADER), 0);\r | |
1506 | CompressDataThenSend (\r | |
1507 | (UINT8 *) (DebugHeader + 1),\r | |
1508 | CurrentDataSize,\r | |
1509 | NULL,\r | |
1510 | &DebugHeader->Crc,\r | |
1511 | NULL\r | |
1512 | );\r | |
1513 | //\r | |
1514 | // Send out the packet head.\r | |
1515 | //\r | |
1516 | DebugPortWriteBuffer (Handle, (UINT8 *) DebugHeader, sizeof (DEBUG_PACKET_HEADER));\r | |
1517 | //\r | |
1518 | // Compress and send out the packet data.\r | |
1519 | //\r | |
1520 | CompressDataThenSend (\r | |
1521 | (UINT8 *) (DebugHeader + 1),\r | |
1522 | CurrentDataSize,\r | |
1523 | NULL,\r | |
1524 | NULL,\r | |
1525 | Handle\r | |
1526 | );\r | |
1527 | } else {\r | |
93c0bdec | 1528 | \r |
d9044ec5 RN |
1529 | //\r |
1530 | // Calculate and fill the checksum, DebugHeader->Crc should be 0 before invoking CalculateCrc16 ()\r | |
1531 | //\r | |
1532 | DebugHeader->Crc = CalculateCrc16 ((UINT8 *) DebugHeader, DebugHeader->Length, 0);\r | |
4fe43eb3 | 1533 | \r |
d9044ec5 RN |
1534 | DebugAgentDataMsgPrint (DEBUG_AGENT_VERBOSE, TRUE, (UINT8 *) DebugHeader, DebugHeader->Length);\r |
1535 | \r | |
1536 | DebugPortWriteBuffer (Handle, (UINT8 *) DebugHeader, DebugHeader->Length);\r | |
1537 | }\r | |
18b144ea | 1538 | \r |
b422b62c | 1539 | while (TRUE) {\r |
d9044ec5 | 1540 | Status = ReceivePacket ((UINT8 *) DebugHeader, NULL, NULL, READ_PACKET_TIMEOUT, FALSE);\r |
b422b62c | 1541 | if (Status == RETURN_TIMEOUT) {\r |
1542 | DebugAgentMsgPrint (DEBUG_AGENT_WARNING, "TARGET: Timeout in SendDataResponsePacket()\n");\r | |
1543 | break;\r | |
1544 | }\r | |
d9044ec5 | 1545 | if ((DebugHeader->Command == DEBUG_COMMAND_OK) && (DebugHeader->SequenceNo == SequenceNo) && LastPacket) {\r |
18b144ea | 1546 | //\r |
1547 | // If this is the last packet, return RETURN_SUCCESS.\r | |
1548 | //\r | |
1549 | return RETURN_SUCCESS;\r | |
18b144ea | 1550 | }\r |
d9044ec5 | 1551 | if ((DebugHeader->Command == DEBUG_COMMAND_CONTINUE) && (DebugHeader->SequenceNo == (UINT8) (SequenceNo + 1))) {\r |
b422b62c | 1552 | //\r |
845a7fe0 | 1553 | // Calculate the rest data size\r |
b422b62c | 1554 | //\r |
845a7fe0 | 1555 | Data += CurrentDataSize;\r |
1556 | RemainingDataSize -= CurrentDataSize;\r | |
d9044ec5 | 1557 | UpdateMailboxContent (GetMailboxPointer(), DEBUG_MAILBOX_HOST_SEQUENCE_NO_INDEX, DebugHeader->SequenceNo);\r |
b422b62c | 1558 | break;\r |
1559 | }\r | |
d9044ec5 | 1560 | if (DebugHeader->SequenceNo >= SequenceNo) {\r |
b422b62c | 1561 | DebugAgentMsgPrint (DEBUG_AGENT_WARNING, "TARGET: Received one old or new command(SequenceNo is %x, last SequenceNo is %x)\n", SequenceNo, DebugHeader->SequenceNo);\r |
1562 | break;\r | |
1563 | }\r | |
18b144ea | 1564 | }\r |
1565 | }\r | |
1566 | }\r | |
1567 | \r | |
845a7fe0 | 1568 | /**\r |
1569 | Send packet with response data to HOST.\r | |
1570 | \r | |
d9044ec5 RN |
1571 | @param[in] Data Pointer to response data buffer.\r |
1572 | @param[in] DataSize Size of response data in byte.\r | |
1573 | @param[in, out] DebugHeader Pointer to a buffer for creating response packet and receiving ACK packet,\r | |
1574 | to minimize the stack usage.\r | |
845a7fe0 | 1575 | \r |
1576 | @retval RETURN_SUCCESS Response data was sent successfully.\r | |
1577 | \r | |
1578 | **/\r | |
1579 | RETURN_STATUS\r | |
1580 | SendDataResponsePacket (\r | |
d9044ec5 RN |
1581 | IN UINT8 *Data,\r |
1582 | IN UINT16 DataSize,\r | |
1583 | IN OUT DEBUG_PACKET_HEADER *DebugHeader\r | |
18b144ea | 1584 | )\r |
1585 | {\r | |
d9044ec5 | 1586 | return ReadMemoryAndSendResponsePacket (Data, DataSize, 1, DebugHeader);\r |
18b144ea | 1587 | }\r |
1588 | \r | |
93c0bdec | 1589 | /**\r |
1590 | Try to attach the HOST.\r | |
4fe43eb3 | 1591 | \r |
93c0bdec | 1592 | Send init break packet to HOST:\r |
4fe43eb3 JF |
1593 | If no acknowlege received in specified Timeout, return RETURN_TIMEOUT.\r |
1594 | If received acknowlege, check the revision of HOST.\r | |
1595 | Set Attach Flag if attach successfully.\r | |
1596 | \r | |
b422b62c | 1597 | @param[in] BreakCause Break cause of this break event.\r |
93c0bdec | 1598 | @param[in] Timeout Time out value to wait for acknowlege from HOST.\r |
1599 | The unit is microsecond.\r | |
1600 | @param[out] BreakReceived If BreakReceived is not NULL,\r | |
1601 | TRUE is retured if break-in symbol received.\r | |
1602 | FALSE is retured if break-in symbol not received.\r | |
1603 | **/\r | |
1604 | RETURN_STATUS\r | |
1605 | AttachHost (\r | |
b422b62c | 1606 | IN UINT8 BreakCause,\r |
93c0bdec | 1607 | IN UINTN Timeout,\r |
1608 | OUT BOOLEAN *BreakReceived\r | |
1609 | )\r | |
1610 | {\r | |
1611 | RETURN_STATUS Status;\r | |
1612 | DEBUG_PORT_HANDLE Handle;\r | |
b422b62c | 1613 | BOOLEAN IncompatibilityFlag;\r |
93c0bdec | 1614 | \r |
b422b62c | 1615 | IncompatibilityFlag = FALSE;\r |
93c0bdec | 1616 | Handle = GetDebugPortHandle();\r |
4fe43eb3 | 1617 | \r |
93c0bdec | 1618 | //\r |
1619 | // Send init break and wait ack in Timeout\r | |
1620 | //\r | |
1621 | DebugPortWriteBuffer (Handle, (UINT8 *) mErrorMsgSendInitPacket, AsciiStrLen (mErrorMsgSendInitPacket));\r | |
b422b62c | 1622 | if (BreakCause == DEBUG_DATA_BREAK_CAUSE_SYSTEM_RESET) {\r |
1623 | Status = SendCommandAndWaitForAckOK (DEBUG_COMMAND_INIT_BREAK, Timeout, BreakReceived, &IncompatibilityFlag);\r | |
1624 | } else {\r | |
1625 | Status = SendCommandAndWaitForAckOK (DEBUG_COMMAND_ATTACH_BREAK, Timeout, BreakReceived, &IncompatibilityFlag);\r | |
93c0bdec | 1626 | }\r |
b422b62c | 1627 | if (IncompatibilityFlag) {\r |
93c0bdec | 1628 | //\r |
b422b62c | 1629 | // If the incompatible Debug Packet received, the HOST should be running transfer protocol before DEBUG_AGENT_REVISION.\r |
1630 | // It could be UDK Debugger for Windows v1.1/v1.2 or for Linux v0.8/v1.2.\r | |
93c0bdec | 1631 | //\r |
1632 | DebugPortWriteBuffer (Handle, (UINT8 *) mErrorMsgVersionAlert, AsciiStrLen (mErrorMsgVersionAlert));\r | |
1633 | CpuDeadLoop ();\r | |
1634 | }\r | |
4fe43eb3 | 1635 | \r |
b422b62c | 1636 | if (RETURN_ERROR (Status)) {\r |
1637 | DebugPortWriteBuffer (Handle, (UINT8 *) mErrorMsgConnectFail, AsciiStrLen (mErrorMsgConnectFail));\r | |
1638 | } else {\r | |
1639 | DebugPortWriteBuffer (Handle, (UINT8 *) mErrorMsgConnectOK, AsciiStrLen (mErrorMsgConnectOK));\r | |
1640 | //\r | |
1641 | // Set Attach flag\r | |
1642 | //\r | |
1643 | SetHostAttached (TRUE);\r | |
1644 | }\r | |
93c0bdec | 1645 | return Status;\r |
1646 | }\r | |
1647 | \r | |
1648 | /**\r | |
4fe43eb3 JF |
1649 | Send Break point packet to HOST.\r |
1650 | \r | |
93c0bdec | 1651 | Only the first breaking processor could sent BREAK_POINT packet.\r |
b422b62c | 1652 | \r |
1653 | @param[in] BreakCause Break cause of this break event.\r | |
93c0bdec | 1654 | @param[in] ProcessorIndex Processor index value.\r |
1655 | @param[out] BreakReceived If BreakReceived is not NULL,\r | |
1656 | TRUE is retured if break-in symbol received.\r | |
1657 | FALSE is retured if break-in symbol not received.\r | |
4fe43eb3 | 1658 | \r |
93c0bdec | 1659 | **/\r |
1660 | VOID\r | |
1661 | SendBreakPacketToHost (\r | |
b422b62c | 1662 | IN UINT8 BreakCause,\r |
93c0bdec | 1663 | IN UINT32 ProcessorIndex,\r |
1664 | OUT BOOLEAN *BreakReceived\r | |
1665 | )\r | |
1666 | {\r | |
1667 | UINT8 InputCharacter;\r | |
1668 | DEBUG_PORT_HANDLE Handle;\r | |
4fe43eb3 | 1669 | \r |
93c0bdec | 1670 | Handle = GetDebugPortHandle();\r |
4fe43eb3 | 1671 | \r |
93c0bdec | 1672 | if (IsHostAttached ()) {\r |
1673 | DebugAgentMsgPrint (DEBUG_AGENT_INFO, "processor[%x]:Send Break Packet to HOST.\n", ProcessorIndex);\r | |
b422b62c | 1674 | SendCommandAndWaitForAckOK (DEBUG_COMMAND_BREAK_POINT, READ_PACKET_TIMEOUT, BreakReceived, NULL);\r |
93c0bdec | 1675 | } else {\r |
1676 | DebugAgentMsgPrint (DEBUG_AGENT_INFO, "processor[%x]:Try to attach HOST.\n", ProcessorIndex);\r | |
1677 | //\r | |
1678 | // If HOST is not attached, try to attach it firstly.\r | |
1679 | //\r | |
1680 | //\r | |
1681 | // Poll Attach symbols from HOST and ack OK\r | |
4fe43eb3 | 1682 | //\r |
93c0bdec | 1683 | do {\r |
1684 | DebugPortReadBuffer (Handle, &InputCharacter, 1, 0);\r | |
1685 | } while (InputCharacter != DEBUG_STARTING_SYMBOL_ATTACH);\r | |
1686 | SendAckPacket (DEBUG_COMMAND_OK);\r | |
4fe43eb3 | 1687 | \r |
93c0bdec | 1688 | //\r |
1689 | // Try to attach HOST\r | |
1690 | //\r | |
b422b62c | 1691 | while (AttachHost (BreakCause, 0, NULL) != RETURN_SUCCESS);\r |
4fe43eb3 | 1692 | \r |
93c0bdec | 1693 | }\r |
1694 | }\r | |
18b144ea | 1695 | \r |
1696 | /**\r | |
1697 | The main function to process communication with HOST.\r | |
1698 | \r | |
1699 | It received the command packet from HOST, and sent response data packet to HOST.\r | |
1700 | \r | |
1701 | @param[in] Vector Vector value of exception or interrutp.\r | |
1702 | @param[in, out] CpuContext Pointer to saved CPU context.\r | |
1703 | @param[in] BreakReceived TRUE means break-in symbol received.\r | |
1704 | FALSE means break-in symbol not received.\r | |
1705 | \r | |
1706 | **/\r | |
1707 | VOID\r | |
1708 | CommandCommunication (\r | |
1709 | IN UINTN Vector,\r | |
1710 | IN OUT DEBUG_CPU_CONTEXT *CpuContext,\r | |
1711 | IN BOOLEAN BreakReceived\r | |
1712 | )\r | |
1713 | {\r | |
93c0bdec | 1714 | RETURN_STATUS Status;\r |
845a7fe0 | 1715 | UINT8 InputPacketBuffer[DEBUG_DATA_UPPER_LIMIT + sizeof (UINT64) - 1];\r |
93c0bdec | 1716 | DEBUG_PACKET_HEADER *DebugHeader;\r |
1717 | UINT8 Width;\r | |
1718 | UINT8 Data8;\r | |
1719 | UINT32 Data32;\r | |
1720 | UINT64 Data64;\r | |
1721 | DEBUG_DATA_READ_MEMORY *MemoryRead;\r | |
1722 | DEBUG_DATA_WRITE_MEMORY *MemoryWrite;\r | |
1723 | DEBUG_DATA_READ_IO *IoRead;\r | |
1724 | DEBUG_DATA_WRITE_IO *IoWrite;\r | |
1725 | DEBUG_DATA_READ_REGISTER *RegisterRead;\r | |
1726 | DEBUG_DATA_WRITE_REGISTER *RegisterWrite;\r | |
1727 | UINT8 *RegisterBuffer;\r | |
1728 | DEBUG_DATA_READ_MSR *MsrRegisterRead;\r | |
1729 | DEBUG_DATA_WRITE_MSR *MsrRegisterWrite;\r | |
1730 | DEBUG_DATA_CPUID *Cpuid;\r | |
d9044ec5 | 1731 | DEBUG_DATA_RESPONSE_BREAK_CAUSE BreakCause;\r |
93c0bdec | 1732 | DEBUG_DATA_RESPONSE_CPUID CpuidResponse;\r |
1733 | DEBUG_DATA_SEARCH_SIGNATURE *SearchSignature;\r | |
1734 | DEBUG_DATA_RESPONSE_GET_EXCEPTION Exception;\r | |
1735 | DEBUG_DATA_RESPONSE_GET_REVISION DebugAgentRevision;\r | |
1736 | DEBUG_DATA_SET_VIEWPOINT *SetViewPoint;\r | |
1737 | BOOLEAN HaltDeferred;\r | |
1738 | UINT32 ProcessorIndex;\r | |
1739 | DEBUG_PORT_HANDLE Handle;\r | |
1740 | DEBUG_AGENT_EXCEPTION_BUFFER AgentExceptionBuffer;\r | |
1741 | UINT32 IssuedViewPoint;\r | |
b422b62c | 1742 | DEBUG_AGENT_MAILBOX *Mailbox;\r |
845a7fe0 | 1743 | UINT8 *AlignedDataPtr;\r |
18b144ea | 1744 | \r |
1745 | ProcessorIndex = 0;\r | |
93c0bdec | 1746 | IssuedViewPoint = 0;\r |
1747 | HaltDeferred = BreakReceived;\r | |
18b144ea | 1748 | \r |
b422b62c | 1749 | if (MultiProcessorDebugSupport()) {\r |
18b144ea | 1750 | ProcessorIndex = GetProcessorIndex ();\r |
1751 | SetCpuStopFlagByIndex (ProcessorIndex, TRUE);\r | |
93c0bdec | 1752 | if (mDebugMpContext.ViewPointIndex == ProcessorIndex) {\r |
1753 | //\r | |
4fe43eb3 | 1754 | // Only the current view processor could set AgentInProgress Flag.\r |
93c0bdec | 1755 | //\r |
1756 | IssuedViewPoint = ProcessorIndex;\r | |
1757 | }\r | |
18b144ea | 1758 | }\r |
1759 | \r | |
93c0bdec | 1760 | if (IssuedViewPoint == ProcessorIndex) {\r |
1761 | //\r | |
1762 | // Set AgentInProgress Flag.\r | |
1763 | //\r | |
b422b62c | 1764 | SetDebugFlag (DEBUG_AGENT_FLAG_AGENT_IN_PROGRESS, 1);\r |
4fe43eb3 | 1765 | }\r |
93c0bdec | 1766 | \r |
1767 | Handle = GetDebugPortHandle();\r | |
1768 | \r | |
18b144ea | 1769 | while (TRUE) {\r |
1770 | \r | |
b422b62c | 1771 | if (MultiProcessorDebugSupport()) {\r |
93c0bdec | 1772 | //\r |
1773 | // Check if the current processor is HOST view point\r | |
1774 | //\r | |
18b144ea | 1775 | if (mDebugMpContext.ViewPointIndex != ProcessorIndex) {\r |
1776 | if (mDebugMpContext.RunCommandSet) {\r | |
93c0bdec | 1777 | //\r |
1778 | // If HOST view point sets RUN flag, run GO command to leave\r | |
1779 | //\r | |
18b144ea | 1780 | SetCpuStopFlagByIndex (ProcessorIndex, FALSE);\r |
1781 | CommandGo (CpuContext);\r | |
1782 | break;\r | |
1783 | } else {\r | |
93c0bdec | 1784 | //\r |
1785 | // Run into loop again\r | |
1786 | //\r | |
1787 | CpuPause ();\r | |
18b144ea | 1788 | continue;\r |
1789 | }\r | |
1790 | }\r | |
1791 | }\r | |
1792 | \r | |
b422b62c | 1793 | AcquireMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
18b144ea | 1794 | \r |
b422b62c | 1795 | DebugHeader =(DEBUG_PACKET_HEADER *) InputPacketBuffer;\r |
18b144ea | 1796 | \r |
b422b62c | 1797 | DebugAgentMsgPrint (DEBUG_AGENT_INFO, "TARGET: Try to get command from HOST...\n");\r |
d9044ec5 | 1798 | Status = ReceivePacket ((UINT8 *) DebugHeader, &BreakReceived, NULL, READ_PACKET_TIMEOUT, TRUE);\r |
ace354f1 | 1799 | if (Status != RETURN_SUCCESS || !IS_REQUEST (DebugHeader)) {\r |
b422b62c | 1800 | DebugAgentMsgPrint (DEBUG_AGENT_WARNING, "TARGET: Get command[%x] sequenceno[%x] returned status is [%x] \n", DebugHeader->Command, DebugHeader->SequenceNo, Status);\r |
1801 | DebugAgentMsgPrint (DEBUG_AGENT_WARNING, "TARGET: Get command failed or it's response packet not expected! \n");\r | |
1802 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r | |
1803 | continue;\r | |
18b144ea | 1804 | }\r |
1805 | \r | |
b422b62c | 1806 | Mailbox = GetMailboxPointer ();\r |
1807 | if (DebugHeader->SequenceNo == Mailbox->HostSequenceNo) {\r | |
1808 | DebugAgentMsgPrint (DEBUG_AGENT_WARNING, "TARGET: Receive one old command[%x] agaist command[%x]\n", DebugHeader->SequenceNo, Mailbox->HostSequenceNo);\r | |
1809 | SendAckPacket (Mailbox->LastAck);\r | |
1810 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r | |
1811 | continue;\r | |
1812 | } else if (DebugHeader->SequenceNo == (UINT8) (Mailbox->HostSequenceNo + 1)) {\r | |
1813 | UpdateMailboxContent (Mailbox, DEBUG_MAILBOX_HOST_SEQUENCE_NO_INDEX, (UINT8) DebugHeader->SequenceNo);\r | |
1814 | } else {\r | |
1815 | DebugAgentMsgPrint (DEBUG_AGENT_WARNING, "Receive one invalid comamnd[%x] agaist command[%x]\n", DebugHeader->SequenceNo, Mailbox->HostSequenceNo);\r | |
1816 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r | |
18b144ea | 1817 | continue;\r |
1818 | }\r | |
4fe43eb3 | 1819 | \r |
93c0bdec | 1820 | //\r |
1821 | // Save CPU content before executing HOST commond\r | |
1822 | //\r | |
b422b62c | 1823 | UpdateMailboxContent (Mailbox, DEBUG_MAILBOX_EXCEPTION_BUFFER_POINTER_INDEX, (UINT64)(UINTN) &AgentExceptionBuffer.JumpBuffer);\r |
93c0bdec | 1824 | if (SetJump (&AgentExceptionBuffer.JumpBuffer) != 0) {\r |
1825 | //\r | |
1826 | // If HOST command failed, continue to wait for HOST's next command\r | |
1827 | // If needed, agent could send exception info to HOST.\r | |
1828 | //\r | |
1829 | SendAckPacket (DEBUG_COMMAND_ABORT);\r | |
b422b62c | 1830 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
93c0bdec | 1831 | continue;\r |
1832 | }\r | |
1833 | \r | |
1834 | DebugAgentMsgPrint (DEBUG_AGENT_INFO, "Processor[%x]:Received one command(%x)\n", mDebugMpContext.ViewPointIndex, DebugHeader->Command);\r | |
4fe43eb3 | 1835 | \r |
18b144ea | 1836 | switch (DebugHeader->Command) {\r |
1837 | \r | |
b422b62c | 1838 | case DEBUG_COMMAND_HALT:\r |
1839 | SendAckPacket (DEBUG_COMMAND_HALT_DEFERRED);\r | |
1840 | HaltDeferred = TRUE;\r | |
1841 | BreakReceived = FALSE;\r | |
1842 | Status = RETURN_SUCCESS;\r | |
1843 | break;\r | |
1844 | \r | |
18b144ea | 1845 | case DEBUG_COMMAND_RESET:\r |
1846 | SendAckPacket (DEBUG_COMMAND_OK);\r | |
b422b62c | 1847 | SendAckPacket (DEBUG_COMMAND_OK);\r |
1848 | SendAckPacket (DEBUG_COMMAND_OK);\r | |
1849 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r | |
18b144ea | 1850 | \r |
1851 | ResetCold ();\r | |
1852 | //\r | |
b4ebbaff RN |
1853 | // Assume system resets in 2 seconds, otherwise send TIMEOUT packet.\r |
1854 | // PCD can be used if 2 seconds isn't long enough for some platforms.\r | |
18b144ea | 1855 | //\r |
b4ebbaff | 1856 | MicroSecondDelay (2000000);\r |
b422b62c | 1857 | UpdateMailboxContent (Mailbox, DEBUG_MAILBOX_HOST_SEQUENCE_NO_INDEX, Mailbox->HostSequenceNo + 1);\r |
1858 | SendAckPacket (DEBUG_COMMAND_TIMEOUT);\r | |
1859 | SendAckPacket (DEBUG_COMMAND_TIMEOUT);\r | |
b4ebbaff | 1860 | SendAckPacket (DEBUG_COMMAND_TIMEOUT);\r |
18b144ea | 1861 | break;\r |
1862 | \r | |
1863 | case DEBUG_COMMAND_GO:\r | |
1864 | CommandGo (CpuContext);\r | |
93c0bdec | 1865 | //\r |
1866 | // Clear Dr0 to avoid to be recognized as IMAGE_LOAD/_UNLOAD again when hitting a breakpoint after GO\r | |
1867 | // If HOST changed Dr0 before GO, we will not change Dr0 here\r | |
1868 | //\r | |
1869 | Data8 = GetBreakCause (Vector, CpuContext);\r | |
1870 | if (Data8 == DEBUG_DATA_BREAK_CAUSE_IMAGE_LOAD || Data8 == DEBUG_DATA_BREAK_CAUSE_IMAGE_UNLOAD) {\r | |
1871 | CpuContext->Dr0 = 0;\r | |
1872 | }\r | |
1873 | //\r | |
1874 | // Clear Stepping Flag\r | |
1875 | //\r | |
b422b62c | 1876 | SetDebugFlag (DEBUG_AGENT_FLAG_STEPPING, 0);\r |
4fe43eb3 | 1877 | \r |
18b144ea | 1878 | if (!HaltDeferred) {\r |
1879 | //\r | |
1880 | // If no HALT command received when being in-active mode\r | |
1881 | //\r | |
b422b62c | 1882 | if (MultiProcessorDebugSupport()) {\r |
93c0bdec | 1883 | Data32 = FindNextPendingBreakCpu ();\r |
18b144ea | 1884 | if (Data32 != -1) {\r |
1885 | //\r | |
4fe43eb3 | 1886 | // If there are still others processors being in break state,\r |
18b144ea | 1887 | // send OK packet to HOST to finish this go command\r |
1888 | //\r | |
1889 | SendAckPacket (DEBUG_COMMAND_OK);\r | |
1890 | CpuPause ();\r | |
1891 | //\r | |
1892 | // Set current view to the next breaking processor\r | |
1893 | //\r | |
1894 | mDebugMpContext.ViewPointIndex = Data32;\r | |
1895 | mDebugMpContext.BreakAtCpuIndex = mDebugMpContext.ViewPointIndex;\r | |
1896 | SetCpuBreakFlagByIndex (mDebugMpContext.ViewPointIndex, FALSE);\r | |
1897 | //\r | |
93c0bdec | 1898 | // Send break packet to HOST to let HOST break again\r |
1899 | //\r | |
b422b62c | 1900 | SendBreakPacketToHost (DEBUG_DATA_BREAK_CAUSE_UNKNOWN, mDebugMpContext.BreakAtCpuIndex, &BreakReceived);\r |
93c0bdec | 1901 | //\r |
1902 | // Continue to run into loop to read command packet from HOST\r | |
18b144ea | 1903 | //\r |
b422b62c | 1904 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
18b144ea | 1905 | break;\r |
1906 | }\r | |
1907 | \r | |
1908 | //\r | |
1909 | // If no else processor break, set stop bitmask,\r | |
1910 | // and set Running flag for all processors.\r | |
1911 | //\r | |
1912 | SetCpuStopFlagByIndex (ProcessorIndex, FALSE);\r | |
1913 | SetCpuRunningFlag (TRUE);\r | |
1914 | CpuPause ();\r | |
1915 | //\r | |
4fe43eb3 | 1916 | // Wait for all processors are in running state\r |
18b144ea | 1917 | //\r |
1918 | while (TRUE) {\r | |
1919 | if (IsAllCpuRunning ()) {\r | |
1920 | break;\r | |
1921 | }\r | |
1922 | }\r | |
1923 | //\r | |
1924 | // Set BSP to be current view point.\r | |
1925 | //\r | |
1926 | SetDebugViewPoint (mDebugMpContext.BspIndex);\r | |
1927 | CpuPause ();\r | |
1928 | //\r | |
1929 | // Clear breaking processor index and running flag\r | |
1930 | //\r | |
1931 | mDebugMpContext.BreakAtCpuIndex = (UINT32) (-1);\r | |
1932 | SetCpuRunningFlag (FALSE);\r | |
1933 | }\r | |
1934 | \r | |
1935 | //\r | |
1936 | // Send OK packet to HOST to finish this go command\r | |
1937 | //\r | |
1938 | SendAckPacket (DEBUG_COMMAND_OK);\r | |
1939 | \r | |
b422b62c | 1940 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
18b144ea | 1941 | \r |
b422b62c | 1942 | if (!IsHostAttached()) {\r |
1943 | UpdateMailboxContent (Mailbox, DEBUG_MAILBOX_SEQUENCE_NO_INDEX, 0);\r | |
1944 | UpdateMailboxContent (Mailbox, DEBUG_MAILBOX_HOST_SEQUENCE_NO_INDEX, 0);\r | |
1945 | }\r | |
18b144ea | 1946 | return;\r |
1947 | \r | |
1948 | } else {\r | |
1949 | //\r | |
1950 | // If reveived HALT command, need to defer the GO command\r | |
1951 | //\r | |
1952 | SendAckPacket (DEBUG_COMMAND_HALT_PROCESSED);\r | |
1953 | HaltDeferred = FALSE;\r | |
18b144ea | 1954 | \r |
1955 | Vector = DEBUG_TIMER_VECTOR;\r | |
1956 | }\r | |
1957 | break;\r | |
1958 | \r | |
1959 | case DEBUG_COMMAND_BREAK_CAUSE:\r | |
d9044ec5 | 1960 | BreakCause.StopAddress = CpuContext->Eip;\r |
b422b62c | 1961 | if (MultiProcessorDebugSupport() && ProcessorIndex != mDebugMpContext.BreakAtCpuIndex) {\r |
d9044ec5 | 1962 | BreakCause.Cause = GetBreakCause (DEBUG_TIMER_VECTOR, CpuContext);\r |
18b144ea | 1963 | } else {\r |
d9044ec5 | 1964 | BreakCause.Cause = GetBreakCause (Vector, CpuContext);\r |
18b144ea | 1965 | }\r |
d9044ec5 | 1966 | SendDataResponsePacket ((UINT8 *) &BreakCause, (UINT16) sizeof (DEBUG_DATA_RESPONSE_BREAK_CAUSE), DebugHeader);\r |
18b144ea | 1967 | break;\r |
1968 | \r | |
1969 | case DEBUG_COMMAND_SET_HW_BREAKPOINT:\r | |
1970 | SetDebugRegister (CpuContext, (DEBUG_DATA_SET_HW_BREAKPOINT *) (DebugHeader + 1));\r | |
1971 | SendAckPacket (DEBUG_COMMAND_OK);\r | |
1972 | break;\r | |
1973 | \r | |
1974 | case DEBUG_COMMAND_CLEAR_HW_BREAKPOINT:\r | |
1975 | ClearDebugRegister (CpuContext, (DEBUG_DATA_CLEAR_HW_BREAKPOINT *) (DebugHeader + 1));\r | |
1976 | SendAckPacket (DEBUG_COMMAND_OK);\r | |
1977 | break;\r | |
1978 | \r | |
1979 | case DEBUG_COMMAND_SINGLE_STEPPING:\r | |
1980 | CommandStepping (CpuContext);\r | |
93c0bdec | 1981 | //\r |
1982 | // Clear Dr0 to avoid to be recognized as IMAGE_LOAD/_UNLOAD again when hitting a breakpoint after GO\r | |
1983 | // If HOST changed Dr0 before GO, we will not change Dr0 here\r | |
1984 | //\r | |
1985 | Data8 = GetBreakCause (Vector, CpuContext);\r | |
1986 | if (Data8 == DEBUG_DATA_BREAK_CAUSE_IMAGE_LOAD || Data8 == DEBUG_DATA_BREAK_CAUSE_IMAGE_UNLOAD) {\r | |
1987 | CpuContext->Dr0 = 0;\r | |
1988 | }\r | |
18b144ea | 1989 | \r |
1990 | mDebugMpContext.BreakAtCpuIndex = (UINT32) (-1);\r | |
93c0bdec | 1991 | //\r |
1992 | // Set Stepping Flag\r | |
1993 | //\r | |
b422b62c | 1994 | SetDebugFlag (DEBUG_AGENT_FLAG_STEPPING, 1);\r |
1995 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r | |
18b144ea | 1996 | //\r |
93c0bdec | 1997 | // Executing stepping command directly without sending ACK packet,\r |
1998 | // ACK packet will be sent after stepping done.\r | |
18b144ea | 1999 | //\r |
2000 | return;\r | |
2001 | \r | |
2002 | case DEBUG_COMMAND_SET_SW_BREAKPOINT:\r | |
2003 | Data64 = (UINTN) (((DEBUG_DATA_SET_SW_BREAKPOINT *) (DebugHeader + 1))->Address);\r | |
2004 | Data8 = *(UINT8 *) (UINTN) Data64;\r | |
2005 | *(UINT8 *) (UINTN) Data64 = DEBUG_SW_BREAKPOINT_SYMBOL;\r | |
d9044ec5 | 2006 | Status = SendDataResponsePacket ((UINT8 *) &Data8, (UINT16) sizeof (UINT8), DebugHeader);\r |
18b144ea | 2007 | break;\r |
2008 | \r | |
93c0bdec | 2009 | case DEBUG_COMMAND_READ_MEMORY:\r |
2010 | MemoryRead = (DEBUG_DATA_READ_MEMORY *) (DebugHeader + 1);\r | |
d9044ec5 | 2011 | Status = ReadMemoryAndSendResponsePacket ((UINT8 *) (UINTN) MemoryRead->Address, MemoryRead->Count, MemoryRead->Width, DebugHeader);\r |
18b144ea | 2012 | break;\r |
2013 | \r | |
93c0bdec | 2014 | case DEBUG_COMMAND_WRITE_MEMORY:\r |
2015 | MemoryWrite = (DEBUG_DATA_WRITE_MEMORY *) (DebugHeader + 1);\r | |
845a7fe0 | 2016 | //\r |
2017 | // Copy data into one memory with 8-byte alignment address\r | |
2018 | //\r | |
2019 | AlignedDataPtr = ALIGN_POINTER ((UINT8 *) &MemoryWrite->Data, sizeof (UINT64));\r | |
2020 | if (AlignedDataPtr != (UINT8 *) &MemoryWrite->Data) {\r | |
2021 | CopyMem (AlignedDataPtr, (UINT8 *) &MemoryWrite->Data, MemoryWrite->Count * MemoryWrite->Width);\r | |
2022 | }\r | |
2023 | CopyMemByWidth ((UINT8 *) (UINTN) MemoryWrite->Address, AlignedDataPtr, MemoryWrite->Count, MemoryWrite->Width);\r | |
18b144ea | 2024 | SendAckPacket (DEBUG_COMMAND_OK);\r |
2025 | break;\r | |
2026 | \r | |
2027 | case DEBUG_COMMAND_READ_IO:\r | |
2028 | IoRead = (DEBUG_DATA_READ_IO *) (DebugHeader + 1);\r | |
2029 | switch (IoRead->Width) {\r | |
2030 | case 1:\r | |
93c0bdec | 2031 | Data64 = IoRead8 ((UINTN) IoRead->Port);\r |
18b144ea | 2032 | break;\r |
2033 | case 2:\r | |
93c0bdec | 2034 | Data64 = IoRead16 ((UINTN) IoRead->Port);\r |
18b144ea | 2035 | break;\r |
2036 | case 4:\r | |
93c0bdec | 2037 | Data64 = IoRead32 ((UINTN) IoRead->Port);\r |
18b144ea | 2038 | break;\r |
2039 | case 8:\r | |
93c0bdec | 2040 | Data64 = IoRead64 ((UINTN) IoRead->Port);\r |
18b144ea | 2041 | break;\r |
2042 | default:\r | |
2043 | Data64 = (UINT64) -1;\r | |
2044 | }\r | |
d9044ec5 | 2045 | Status = SendDataResponsePacket ((UINT8 *) &Data64, IoRead->Width, DebugHeader);\r |
18b144ea | 2046 | break;\r |
2047 | \r | |
2048 | case DEBUG_COMMAND_WRITE_IO:\r | |
2049 | IoWrite = (DEBUG_DATA_WRITE_IO *) (DebugHeader + 1);\r | |
2050 | switch (IoWrite->Width) {\r | |
2051 | case 1:\r | |
93c0bdec | 2052 | Data64 = IoWrite8 ((UINTN) IoWrite->Port, *(UINT8 *) &IoWrite->Data);\r |
18b144ea | 2053 | break;\r |
2054 | case 2:\r | |
93c0bdec | 2055 | Data64 = IoWrite16 ((UINTN) IoWrite->Port, *(UINT16 *) &IoWrite->Data);\r |
18b144ea | 2056 | break;\r |
2057 | case 4:\r | |
93c0bdec | 2058 | Data64 = IoWrite32 ((UINTN) IoWrite->Port, *(UINT32 *) &IoWrite->Data);\r |
18b144ea | 2059 | break;\r |
2060 | case 8:\r | |
93c0bdec | 2061 | Data64 = IoWrite64 ((UINTN) IoWrite->Port, *(UINT64 *) &IoWrite->Data);\r |
18b144ea | 2062 | break;\r |
2063 | default:\r | |
2064 | Data64 = (UINT64) -1;\r | |
2065 | }\r | |
2066 | SendAckPacket (DEBUG_COMMAND_OK);\r | |
2067 | break;\r | |
2068 | \r | |
93c0bdec | 2069 | case DEBUG_COMMAND_READ_ALL_REGISTERS:\r |
d9044ec5 | 2070 | Status = SendDataResponsePacket ((UINT8 *) CpuContext, sizeof (*CpuContext), DebugHeader);\r |
93c0bdec | 2071 | break;\r |
2072 | \r | |
18b144ea | 2073 | case DEBUG_COMMAND_READ_REGISTER:\r |
2074 | RegisterRead = (DEBUG_DATA_READ_REGISTER *) (DebugHeader + 1);\r | |
2075 | \r | |
93c0bdec | 2076 | if (RegisterRead->Index <= SOFT_DEBUGGER_REGISTER_MAX) {\r |
2077 | RegisterBuffer = ArchReadRegisterBuffer (CpuContext, RegisterRead->Index, &Width);\r | |
d9044ec5 | 2078 | Status = SendDataResponsePacket (RegisterBuffer, Width, DebugHeader);\r |
18b144ea | 2079 | } else {\r |
93c0bdec | 2080 | Status = RETURN_UNSUPPORTED;\r |
18b144ea | 2081 | }\r |
2082 | break;\r | |
2083 | \r | |
2084 | case DEBUG_COMMAND_WRITE_REGISTER:\r | |
2085 | RegisterWrite = (DEBUG_DATA_WRITE_REGISTER *) (DebugHeader + 1);\r | |
93c0bdec | 2086 | if (RegisterWrite->Index <= SOFT_DEBUGGER_REGISTER_MAX) {\r |
2087 | RegisterBuffer = ArchReadRegisterBuffer (CpuContext, RegisterWrite->Index, &Width);\r | |
2088 | ASSERT (Width == RegisterWrite->Length);\r | |
2089 | CopyMem (RegisterBuffer, RegisterWrite->Data, Width);\r | |
2090 | SendAckPacket (DEBUG_COMMAND_OK);\r | |
2091 | } else {\r | |
2092 | Status = RETURN_UNSUPPORTED;\r | |
2093 | }\r | |
18b144ea | 2094 | break;\r |
2095 | \r | |
2096 | case DEBUG_COMMAND_ARCH_MODE:\r | |
2097 | Data8 = DEBUG_ARCH_SYMBOL;\r | |
d9044ec5 | 2098 | Status = SendDataResponsePacket ((UINT8 *) &Data8, (UINT16) sizeof (UINT8), DebugHeader);\r |
18b144ea | 2099 | break;\r |
2100 | \r | |
2101 | case DEBUG_COMMAND_READ_MSR:\r | |
2102 | MsrRegisterRead = (DEBUG_DATA_READ_MSR *) (DebugHeader + 1);\r | |
2103 | Data64 = AsmReadMsr64 (MsrRegisterRead->Index);\r | |
d9044ec5 | 2104 | Status = SendDataResponsePacket ((UINT8 *) &Data64, (UINT16) sizeof (UINT64), DebugHeader);\r |
18b144ea | 2105 | break;\r |
2106 | \r | |
2107 | case DEBUG_COMMAND_WRITE_MSR:\r | |
2108 | MsrRegisterWrite = (DEBUG_DATA_WRITE_MSR *) (DebugHeader + 1);\r | |
2109 | AsmWriteMsr64 (MsrRegisterWrite->Index, MsrRegisterWrite->Value);\r | |
2110 | SendAckPacket (DEBUG_COMMAND_OK);\r | |
2111 | break;\r | |
2112 | \r | |
93c0bdec | 2113 | case DEBUG_COMMAND_SET_DEBUG_SETTING:\r |
2114 | Status = SetDebugSetting ((DEBUG_DATA_SET_DEBUG_SETTING *)(DebugHeader + 1));\r | |
2115 | if (Status == RETURN_SUCCESS) {\r | |
2116 | SendAckPacket (DEBUG_COMMAND_OK);\r | |
2117 | }\r | |
18b144ea | 2118 | break;\r |
2119 | \r | |
2120 | case DEBUG_COMMAND_GET_REVISION:\r | |
2121 | DebugAgentRevision.Revision = DEBUG_AGENT_REVISION;\r | |
2122 | DebugAgentRevision.Capabilities = DEBUG_AGENT_CAPABILITIES;\r | |
d9044ec5 | 2123 | Status = SendDataResponsePacket ((UINT8 *) &DebugAgentRevision, (UINT16) sizeof (DEBUG_DATA_RESPONSE_GET_REVISION), DebugHeader);\r |
18b144ea | 2124 | break;\r |
2125 | \r | |
2126 | case DEBUG_COMMAND_GET_EXCEPTION:\r | |
2127 | Exception.ExceptionNum = (UINT8) Vector;\r | |
93c0bdec | 2128 | Exception.ExceptionData = (UINT32) CpuContext->ExceptionData;\r |
d9044ec5 | 2129 | Status = SendDataResponsePacket ((UINT8 *) &Exception, (UINT16) sizeof (DEBUG_DATA_RESPONSE_GET_EXCEPTION), DebugHeader);\r |
18b144ea | 2130 | break;\r |
2131 | \r | |
2132 | case DEBUG_COMMAND_SET_VIEWPOINT:\r | |
93c0bdec | 2133 | SetViewPoint = (DEBUG_DATA_SET_VIEWPOINT *) (DebugHeader + 1);\r |
b422b62c | 2134 | if (MultiProcessorDebugSupport()) {\r |
93c0bdec | 2135 | if (IsCpuStopped (SetViewPoint->ViewPoint)) {\r |
2136 | SetDebugViewPoint (SetViewPoint->ViewPoint);\r | |
18b144ea | 2137 | SendAckPacket (DEBUG_COMMAND_OK);\r |
2138 | } else {\r | |
2139 | //\r | |
2140 | // If CPU is not halted\r | |
2141 | //\r | |
2142 | SendAckPacket (DEBUG_COMMAND_NOT_SUPPORTED);\r | |
2143 | }\r | |
93c0bdec | 2144 | } else if (SetViewPoint->ViewPoint == 0) {\r |
18b144ea | 2145 | SendAckPacket (DEBUG_COMMAND_OK);\r |
2146 | \r | |
2147 | } else {\r | |
2148 | SendAckPacket (DEBUG_COMMAND_NOT_SUPPORTED);\r | |
2149 | }\r | |
2150 | \r | |
2151 | break;\r | |
2152 | \r | |
2153 | case DEBUG_COMMAND_GET_VIEWPOINT:\r | |
2154 | Data32 = mDebugMpContext.ViewPointIndex;\r | |
d9044ec5 | 2155 | SendDataResponsePacket((UINT8 *) &Data32, (UINT16) sizeof (UINT32), DebugHeader);\r |
93c0bdec | 2156 | break;\r |
2157 | \r | |
2158 | case DEBUG_COMMAND_MEMORY_READY:\r | |
b422b62c | 2159 | Data8 = (UINT8) GetDebugFlag (DEBUG_AGENT_FLAG_MEMORY_READY);\r |
d9044ec5 | 2160 | SendDataResponsePacket (&Data8, (UINT16) sizeof (UINT8), DebugHeader);\r |
93c0bdec | 2161 | break;\r |
2162 | \r | |
2163 | case DEBUG_COMMAND_DETACH:\r | |
2164 | SetHostAttached (FALSE);\r | |
2165 | SendAckPacket (DEBUG_COMMAND_OK);\r | |
2166 | break;\r | |
2167 | \r | |
2168 | case DEBUG_COMMAND_CPUID:\r | |
2169 | Cpuid = (DEBUG_DATA_CPUID *) (DebugHeader + 1);\r | |
2170 | AsmCpuidEx (\r | |
4fe43eb3 | 2171 | Cpuid->Eax, Cpuid->Ecx,\r |
93c0bdec | 2172 | &CpuidResponse.Eax, &CpuidResponse.Ebx,\r |
2173 | &CpuidResponse.Ecx, &CpuidResponse.Edx\r | |
2174 | );\r | |
d9044ec5 | 2175 | SendDataResponsePacket ((UINT8 *) &CpuidResponse, (UINT16) sizeof (CpuidResponse), DebugHeader);\r |
93c0bdec | 2176 | break;\r |
2177 | \r | |
2178 | case DEBUG_COMMAND_SEARCH_SIGNATURE:\r | |
2179 | SearchSignature = (DEBUG_DATA_SEARCH_SIGNATURE *) (DebugHeader + 1);\r | |
4fe43eb3 | 2180 | if ((SearchSignature->Alignment != 0) &&\r |
93c0bdec | 2181 | (SearchSignature->Alignment == GetPowerOfTwo32 (SearchSignature->Alignment))\r |
2182 | ) {\r | |
2183 | if (SearchSignature->Positive) {\r | |
2184 | for (\r | |
2185 | Data64 = ALIGN_VALUE ((UINTN) SearchSignature->Start, SearchSignature->Alignment);\r | |
2186 | Data64 <= SearchSignature->Start + SearchSignature->Count - SearchSignature->DataLength;\r | |
2187 | Data64 += SearchSignature->Alignment\r | |
2188 | ) {\r | |
2189 | if (CompareMem ((VOID *) (UINTN) Data64, &SearchSignature->Data, SearchSignature->DataLength) == 0) {\r | |
2190 | break;\r | |
2191 | }\r | |
2192 | }\r | |
2193 | if (Data64 > SearchSignature->Start + SearchSignature->Count - SearchSignature->DataLength) {\r | |
2194 | Data64 = (UINT64) -1;\r | |
2195 | }\r | |
2196 | } else {\r | |
2197 | for (\r | |
2198 | Data64 = ALIGN_VALUE ((UINTN) SearchSignature->Start - SearchSignature->Alignment, SearchSignature->Alignment);\r | |
2199 | Data64 >= SearchSignature->Start - SearchSignature->Count;\r | |
2200 | Data64 -= SearchSignature->Alignment\r | |
2201 | ) {\r | |
2202 | if (CompareMem ((VOID *) (UINTN) Data64, &SearchSignature->Data, SearchSignature->DataLength) == 0) {\r | |
2203 | break;\r | |
2204 | }\r | |
2205 | }\r | |
2206 | if (Data64 < SearchSignature->Start - SearchSignature->Count) {\r | |
2207 | Data64 = (UINT64) -1;\r | |
2208 | }\r | |
2209 | }\r | |
d9044ec5 | 2210 | SendDataResponsePacket ((UINT8 *) &Data64, (UINT16) sizeof (Data64), DebugHeader);\r |
93c0bdec | 2211 | } else {\r |
2212 | Status = RETURN_UNSUPPORTED;\r | |
2213 | }\r | |
18b144ea | 2214 | break;\r |
2215 | \r | |
2216 | default:\r | |
2217 | SendAckPacket (DEBUG_COMMAND_NOT_SUPPORTED);\r | |
2218 | break;\r | |
2219 | }\r | |
2220 | \r | |
2221 | if (Status == RETURN_UNSUPPORTED) {\r | |
2222 | SendAckPacket (DEBUG_COMMAND_NOT_SUPPORTED);\r | |
2223 | } else if (Status != RETURN_SUCCESS) {\r | |
2224 | SendAckPacket (DEBUG_COMMAND_ABORT);\r | |
2225 | }\r | |
2226 | \r | |
b422b62c | 2227 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
18b144ea | 2228 | CpuPause ();\r |
2229 | }\r | |
2230 | }\r | |
2231 | \r | |
2232 | /**\r | |
2233 | C function called in interrupt handler.\r | |
2234 | \r | |
2235 | @param[in] Vector Vector value of exception or interrutp.\r | |
2236 | @param[in] CpuContext Pointer to save CPU context.\r | |
2237 | \r | |
2238 | **/\r | |
2239 | VOID\r | |
2240 | EFIAPI\r | |
2241 | InterruptProcess (\r | |
2242 | IN UINT32 Vector,\r | |
2243 | IN DEBUG_CPU_CONTEXT *CpuContext\r | |
2244 | )\r | |
2245 | {\r | |
93c0bdec | 2246 | UINT8 InputCharacter;\r |
2247 | UINT8 BreakCause;\r | |
2248 | UINTN SavedEip;\r | |
2249 | BOOLEAN BreakReceived;\r | |
2250 | UINT32 ProcessorIndex;\r | |
2251 | UINT32 CurrentDebugTimerInitCount;\r | |
2252 | DEBUG_PORT_HANDLE Handle;\r | |
2253 | UINT8 Data8;\r | |
2254 | UINT8 *Al;\r | |
2255 | UINT32 IssuedViewPoint;\r | |
2256 | DEBUG_AGENT_EXCEPTION_BUFFER *ExceptionBuffer;\r | |
18b144ea | 2257 | \r |
79ecd2db | 2258 | InputCharacter = 0;\r |
93c0bdec | 2259 | ProcessorIndex = 0;\r |
2260 | IssuedViewPoint = 0;\r | |
2261 | BreakReceived = FALSE;\r | |
18b144ea | 2262 | \r |
b422b62c | 2263 | if (mSkipBreakpoint) {\r |
2264 | //\r | |
2265 | // If Skip Breakpoint flag is set, means communication is disturbed by hardware SMI, we need to ignore the break points in SMM\r | |
2266 | //\r | |
2267 | if ((Vector == DEBUG_INT1_VECTOR) || (Vector == DEBUG_INT3_VECTOR)) {\r | |
2268 | DebugPortWriteBuffer (GetDebugPortHandle(), (UINT8 *) mWarningMsgIngoreBreakpoint, AsciiStrLen (mWarningMsgIngoreBreakpoint));\r | |
2269 | return;\r | |
2270 | }\r | |
2271 | }\r | |
2272 | \r | |
2273 | if (MultiProcessorDebugSupport()) {\r | |
18b144ea | 2274 | ProcessorIndex = GetProcessorIndex ();\r |
93c0bdec | 2275 | //\r |
2276 | // If this processor has alreay halted before, need to check it later\r | |
2277 | //\r | |
2278 | if (IsCpuStopped (ProcessorIndex)) {\r | |
2279 | IssuedViewPoint = ProcessorIndex;\r | |
2280 | }\r | |
18b144ea | 2281 | }\r |
2282 | \r | |
b422b62c | 2283 | if (IssuedViewPoint == ProcessorIndex && GetDebugFlag (DEBUG_AGENT_FLAG_STEPPING) != 1) {\r |
93c0bdec | 2284 | //\r |
2285 | // Check if this exception is issued by Debug Agent itself\r | |
2286 | // If yes, fill the debug agent exception buffer and LongJump() back to\r | |
2287 | // the saved CPU content in CommandCommunication()\r | |
2288 | //\r | |
b422b62c | 2289 | if (GetDebugFlag (DEBUG_AGENT_FLAG_AGENT_IN_PROGRESS) == 1) {\r |
845a7fe0 | 2290 | DebugAgentMsgPrint (DEBUG_AGENT_ERROR, "Debug agent meet one Exception, ExceptionNum is %d, EIP = 0x%x.\n", Vector, (UINTN)CpuContext->Eip);\r |
93c0bdec | 2291 | ExceptionBuffer = (DEBUG_AGENT_EXCEPTION_BUFFER *) (UINTN) GetMailboxPointer()->ExceptionBufferPointer;\r |
2292 | ExceptionBuffer->ExceptionContent.ExceptionNum = (UINT8) Vector;\r | |
2293 | ExceptionBuffer->ExceptionContent.ExceptionData = (UINT32) CpuContext->ExceptionData;\r | |
b422b62c | 2294 | LongJump ((BASE_LIBRARY_JUMP_BUFFER *)(UINTN)(ExceptionBuffer), 1);\r |
93c0bdec | 2295 | }\r |
2296 | }\r | |
2297 | \r | |
b422b62c | 2298 | if (MultiProcessorDebugSupport()) {\r |
93c0bdec | 2299 | //\r |
4fe43eb3 | 2300 | // If RUN commmand is executing, wait for it done.\r |
93c0bdec | 2301 | //\r |
2302 | while (mDebugMpContext.RunCommandSet) {\r | |
2303 | CpuPause ();\r | |
2304 | }\r | |
2305 | }\r | |
2306 | \r | |
b422b62c | 2307 | Handle = GetDebugPortHandle();\r |
2308 | BreakCause = GetBreakCause (Vector, CpuContext);\r | |
18b144ea | 2309 | switch (Vector) {\r |
2310 | case DEBUG_INT1_VECTOR:\r | |
2311 | case DEBUG_INT3_VECTOR:\r | |
93c0bdec | 2312 | switch (BreakCause) {\r |
2313 | case DEBUG_DATA_BREAK_CAUSE_SYSTEM_RESET:\r | |
b422b62c | 2314 | if (AttachHost (BreakCause, READ_PACKET_TIMEOUT, &BreakReceived) != RETURN_SUCCESS) {\r |
93c0bdec | 2315 | //\r |
2316 | // Try to connect HOST, return if fails\r | |
2317 | //\r | |
18b144ea | 2318 | break;\r |
2319 | }\r | |
18b144ea | 2320 | CommandCommunication (Vector, CpuContext, BreakReceived);\r |
93c0bdec | 2321 | break;\r |
18b144ea | 2322 | \r |
93c0bdec | 2323 | case DEBUG_DATA_BREAK_CAUSE_STEPPING:\r |
18b144ea | 2324 | //\r |
2325 | // Stepping is finished, send Ack package.\r | |
2326 | //\r | |
b422b62c | 2327 | if (MultiProcessorDebugSupport()) {\r |
18b144ea | 2328 | mDebugMpContext.BreakAtCpuIndex = ProcessorIndex;\r |
2329 | }\r | |
2330 | SendAckPacket (DEBUG_COMMAND_OK);\r | |
2331 | CommandCommunication (Vector, CpuContext, BreakReceived);\r | |
93c0bdec | 2332 | break;\r |
18b144ea | 2333 | \r |
93c0bdec | 2334 | case DEBUG_DATA_BREAK_CAUSE_MEMORY_READY:\r |
18b144ea | 2335 | //\r |
2336 | // Memory is ready\r | |
2337 | //\r | |
b422b62c | 2338 | SendCommandAndWaitForAckOK (DEBUG_COMMAND_MEMORY_READY, READ_PACKET_TIMEOUT, &BreakReceived, NULL);\r |
18b144ea | 2339 | CommandCommunication (Vector, CpuContext, BreakReceived);\r |
93c0bdec | 2340 | break;\r |
18b144ea | 2341 | \r |
93c0bdec | 2342 | case DEBUG_DATA_BREAK_CAUSE_IMAGE_LOAD:\r |
2343 | case DEBUG_DATA_BREAK_CAUSE_IMAGE_UNLOAD:\r | |
2344 | //\r | |
2345 | // Set AL to DEBUG_AGENT_IMAGE_CONTINUE\r | |
2346 | //\r | |
2347 | Al = ArchReadRegisterBuffer (CpuContext, SOFT_DEBUGGER_REGISTER_AX, &Data8);\r | |
2348 | *Al = DEBUG_AGENT_IMAGE_CONTINUE;\r | |
18b144ea | 2349 | \r |
93c0bdec | 2350 | if (!IsHostAttached ()) {\r |
18b144ea | 2351 | //\r |
93c0bdec | 2352 | // If HOST is not connected for image load/unload, return\r |
18b144ea | 2353 | //\r |
93c0bdec | 2354 | break;\r |
18b144ea | 2355 | }\r |
93c0bdec | 2356 | //\r |
2357 | // Continue to run the following common code\r | |
2358 | //\r | |
4fe43eb3 | 2359 | \r |
93c0bdec | 2360 | case DEBUG_DATA_BREAK_CAUSE_HW_BREAKPOINT:\r |
2361 | case DEBUG_DATA_BREAK_CAUSE_SW_BREAKPOINT:\r | |
2362 | default:\r | |
2363 | //\r | |
2364 | // Send Break packet to HOST\r | |
2365 | //\r | |
b422b62c | 2366 | AcquireMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
93c0bdec | 2367 | //\r |
2368 | // Only the first breaking processor could send BREAK_POINT to HOST\r | |
4fe43eb3 | 2369 | //\r |
93c0bdec | 2370 | if (IsFirstBreakProcessor (ProcessorIndex)) {\r |
b422b62c | 2371 | SendBreakPacketToHost (BreakCause, ProcessorIndex, &BreakReceived);\r |
18b144ea | 2372 | }\r |
b422b62c | 2373 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
4fe43eb3 | 2374 | \r |
18b144ea | 2375 | if (Vector == DEBUG_INT3_VECTOR) {\r |
2376 | //\r | |
2377 | // go back address located "0xCC"\r | |
2378 | //\r | |
2379 | CpuContext->Eip--;\r | |
2380 | SavedEip = CpuContext->Eip;\r | |
2381 | CommandCommunication (Vector, CpuContext, BreakReceived);\r | |
2382 | if ((SavedEip == CpuContext->Eip) &&\r | |
2383 | (*(UINT8 *) (UINTN) CpuContext->Eip == DEBUG_SW_BREAKPOINT_SYMBOL)) {\r | |
2384 | //\r | |
2385 | // If this is not a software breakpoint set by HOST,\r | |
2386 | // restore EIP\r | |
2387 | //\r | |
2388 | CpuContext->Eip++;\r | |
2389 | }\r | |
2390 | } else {\r | |
2391 | CommandCommunication (Vector, CpuContext, BreakReceived);\r | |
2392 | }\r | |
93c0bdec | 2393 | break;\r |
18b144ea | 2394 | }\r |
2395 | \r | |
2396 | break;\r | |
2397 | \r | |
2398 | case DEBUG_TIMER_VECTOR:\r | |
2399 | \r | |
b422b62c | 2400 | AcquireMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
93c0bdec | 2401 | \r |
b422b62c | 2402 | if (MultiProcessorDebugSupport()) {\r |
18b144ea | 2403 | if (IsBsp (ProcessorIndex)) {\r |
2404 | //\r | |
2405 | // If current processor is BSP, check Apic timer's init count if changed,\r | |
2406 | // it may be re-written when switching BSP.\r | |
2407 | // If it changed, re-initialize debug timer\r | |
2408 | //\r | |
2409 | CurrentDebugTimerInitCount = GetApicTimerInitCount ();\r | |
2410 | if (mDebugMpContext.DebugTimerInitCount != CurrentDebugTimerInitCount) {\r | |
2411 | InitializeDebugTimer ();\r | |
2412 | }\r | |
2413 | }\r | |
2414 | \r | |
2415 | if (!IsBsp (ProcessorIndex) || mDebugMpContext.IpiSentByAp) {\r | |
b422b62c | 2416 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
18b144ea | 2417 | //\r |
2418 | // If current processor is not BSP or this is one IPI sent by AP\r | |
2419 | //\r | |
2420 | if (mDebugMpContext.BreakAtCpuIndex != (UINT32) (-1)) {\r | |
2421 | CommandCommunication (Vector, CpuContext, FALSE);\r | |
2422 | }\r | |
2423 | \r | |
2424 | //\r | |
2425 | // Clear EOI before exiting interrupt process routine.\r | |
2426 | //\r | |
2427 | SendApicEoi ();\r | |
2428 | break;\r | |
2429 | }\r | |
2430 | }\r | |
2431 | \r | |
2432 | //\r | |
2433 | // Only BSP could run here\r | |
2434 | //\r | |
93c0bdec | 2435 | while (TRUE) {\r |
18b144ea | 2436 | //\r |
93c0bdec | 2437 | // If there is data in debug port, will check whether it is break(attach/break-in) symbol,\r |
18b144ea | 2438 | // If yes, go into communication mode with HOST.\r |
2439 | // If no, exit interrupt process.\r | |
2440 | //\r | |
93c0bdec | 2441 | if (DebugReadBreakSymbol (Handle, &InputCharacter) == EFI_NOT_FOUND) {\r |
2442 | break;\r | |
2443 | }\r | |
b422b62c | 2444 | \r |
93c0bdec | 2445 | if ((!IsHostAttached () && (InputCharacter == DEBUG_STARTING_SYMBOL_ATTACH)) ||\r |
b422b62c | 2446 | (IsHostAttached () && (InputCharacter == DEBUG_COMMAND_HALT)) ||\r |
2447 | (IsHostAttached () && (InputCharacter == DEBUG_COMMAND_GO))\r | |
93c0bdec | 2448 | ) {\r |
2449 | DebugAgentMsgPrint (DEBUG_AGENT_VERBOSE, "Received data [%02x]\n", InputCharacter);\r | |
2450 | //\r | |
2451 | // Ack OK for break-in symbol\r | |
2452 | //\r | |
18b144ea | 2453 | SendAckPacket (DEBUG_COMMAND_OK);\r |
93c0bdec | 2454 | \r |
b422b62c | 2455 | //\r |
2456 | // If receive GO command in Debug Timer, means HOST may lost ACK packet before.\r | |
2457 | //\r | |
2458 | if (InputCharacter == DEBUG_COMMAND_GO) {\r | |
2459 | break;\r | |
2460 | }\r | |
2461 | \r | |
93c0bdec | 2462 | if (!IsHostAttached ()) {\r |
2463 | //\r | |
2464 | // Try to attach HOST, if no ack received after 200ms, return\r | |
2465 | //\r | |
b422b62c | 2466 | if (AttachHost (BreakCause, READ_PACKET_TIMEOUT, &BreakReceived) != RETURN_SUCCESS) {\r |
93c0bdec | 2467 | break;\r |
2468 | }\r | |
2469 | }\r | |
2470 | \r | |
b422b62c | 2471 | if (MultiProcessorDebugSupport()) {\r |
93c0bdec | 2472 | if(FindNextPendingBreakCpu () != -1) {\r |
18b144ea | 2473 | SetCpuBreakFlagByIndex (ProcessorIndex, TRUE);\r |
2474 | } else {\r | |
2475 | HaltOtherProcessors (ProcessorIndex);\r | |
2476 | }\r | |
2477 | }\r | |
b422b62c | 2478 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
18b144ea | 2479 | CommandCommunication (Vector, CpuContext, BreakReceived);\r |
b422b62c | 2480 | AcquireMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
18b144ea | 2481 | break;\r |
2482 | }\r | |
2483 | }\r | |
2484 | \r | |
2485 | //\r | |
2486 | // Clear EOI before exiting interrupt process routine.\r | |
2487 | //\r | |
2488 | SendApicEoi ();\r | |
2489 | \r | |
b422b62c | 2490 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
18b144ea | 2491 | \r |
2492 | break;\r | |
2493 | \r | |
2494 | default:\r | |
18b144ea | 2495 | if (Vector <= DEBUG_EXCEPT_SIMD) {\r |
93c0bdec | 2496 | if (BreakCause == DEBUG_DATA_BREAK_CAUSE_STEPPING) {\r |
2497 | //\r | |
2498 | // Stepping is finished, send Ack package.\r | |
2499 | //\r | |
b422b62c | 2500 | if (MultiProcessorDebugSupport()) {\r |
93c0bdec | 2501 | mDebugMpContext.BreakAtCpuIndex = ProcessorIndex;\r |
18b144ea | 2502 | }\r |
93c0bdec | 2503 | SendAckPacket (DEBUG_COMMAND_OK);\r |
2504 | } else {\r | |
2505 | //\r | |
2506 | // Exception occurs, send Break packet to HOST\r | |
2507 | //\r | |
b422b62c | 2508 | AcquireMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
93c0bdec | 2509 | //\r |
2510 | // Only the first breaking processor could send BREAK_POINT to HOST\r | |
4fe43eb3 | 2511 | //\r |
93c0bdec | 2512 | if (IsFirstBreakProcessor (ProcessorIndex)) {\r |
b422b62c | 2513 | SendBreakPacketToHost (BreakCause, ProcessorIndex, &BreakReceived);\r |
93c0bdec | 2514 | }\r |
b422b62c | 2515 | ReleaseMpSpinLock (&mDebugMpContext.DebugPortSpinLock);\r |
18b144ea | 2516 | }\r |
4fe43eb3 | 2517 | \r |
18b144ea | 2518 | CommandCommunication (Vector, CpuContext, BreakReceived);\r |
2519 | }\r | |
2520 | break;\r | |
2521 | }\r | |
2522 | \r | |
b422b62c | 2523 | if (MultiProcessorDebugSupport()) {\r |
18b144ea | 2524 | //\r |
2525 | // Clear flag and wait for all processors run here\r | |
2526 | //\r | |
2527 | SetIpiSentByApFlag (FALSE);\r | |
93c0bdec | 2528 | while (mDebugMpContext.RunCommandSet) {\r |
2529 | CpuPause ();\r | |
2530 | }\r | |
2531 | \r | |
2532 | //\r | |
2533 | // Only current (view) processor could clean up AgentInProgress flag.\r | |
2534 | //\r | |
2535 | if (mDebugMpContext.ViewPointIndex == ProcessorIndex) {\r | |
2536 | IssuedViewPoint = mDebugMpContext.ViewPointIndex;\r | |
2537 | }\r | |
2538 | }\r | |
2539 | \r | |
b422b62c | 2540 | if (IssuedViewPoint == ProcessorIndex && GetDebugFlag (DEBUG_AGENT_FLAG_STEPPING) != 1) {\r |
93c0bdec | 2541 | //\r |
b422b62c | 2542 | // If the command is not stepping, clean up AgentInProgress flag\r |
93c0bdec | 2543 | //\r |
b422b62c | 2544 | SetDebugFlag (DEBUG_AGENT_FLAG_AGENT_IN_PROGRESS, 0);\r |
18b144ea | 2545 | }\r |
2546 | \r | |
2547 | return;\r | |
2548 | }\r | |
2549 | \r |