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18b144ea 1/** @file\r
2 Transfer protocol defintions used by debug agent and host. It is only\r
3 intended to be used by Debug related module implementation.\r
4\r
d9044ec5 5 Copyright (c) 2010 - 2015, Intel Corporation. All rights reserved.<BR>\r
18b144ea 6 This program and the accompanying materials\r
7 are licensed and made available under the terms and conditions of the BSD License\r
8 which accompanies this distribution. The full text of the license may be found at\r
9 http://opensource.org/licenses/bsd-license.php.\r
10\r
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
13\r
14**/\r
15\r
16#ifndef __TRANSFER_PROTOCOL_H__\r
17#define __TRANSFER_PROTOCOL_H__\r
18\r
19#include "ProcessorContext.h"\r
93c0bdec 20\r
21//\r
22// Current revision of transfer protocol\r
d9044ec5 23// 0.4: Packet compression and decompression.\r
93c0bdec 24//\r
d9044ec5
RN
25#define DEBUG_AGENT_REVISION_03 ((0 << 16) | 03)\r
26#define DEBUG_AGENT_REVISION_04 ((0 << 16) | 04)\r
be73a0c4 27#define DEBUG_AGENT_REVISION DEBUG_AGENT_REVISION_04\r
93c0bdec 28#define DEBUG_AGENT_CAPABILITIES 0\r
18b144ea 29\r
93c0bdec 30//\r
d9044ec5 31// Definitions for the (A)ttach command\r
93c0bdec 32//\r
b422b62c 33#define DEBUG_STARTING_SYMBOL_ATTACH (0xFA)\r
18b144ea 34\r
35//\r
93c0bdec 36// Definition for starting symbol of a normal debug packet. Choose a non-ASCII to avoid conflict with other serial output.\r
18b144ea 37//\r
38#define DEBUG_STARTING_SYMBOL_NORMAL (0xFE)\r
39\r
d9044ec5
RN
40//\r
41// Definition for starting symbol of a (C)ompressed debug packet. Choose a non-ASCII to avoid conflict with other serial output.\r
42//\r
43#define DEBUG_STARTING_SYMBOL_COMPRESS (0xFC)\r
44\r
18b144ea 45#pragma pack(1)\r
46\r
47//\r
d9044ec5 48// Definition for debug packet header for debug packets (not including attach command)\r
18b144ea 49//\r
50typedef struct {\r
51 UINT8 StartSymbol;\r
52 UINT8 Command;\r
93c0bdec 53 UINT8 Length; // Length of Debug Packet including header and payload in byte\r
b422b62c 54 UINT8 SequenceNo;\r
55 UINT16 Crc;\r
93c0bdec 56} DEBUG_PACKET_HEADER;\r
18b144ea 57\r
58//\r
59// Definition for Command field for debug packets\r
60//\r
61#define DEBUG_COMMAND_REQUEST (0 << 7)\r
62#define DEBUG_COMMAND_RESPONSE (1 << 7)\r
63\r
ace354f1
RN
64#define IS_REQUEST(x) (((x)->Command & DEBUG_COMMAND_RESPONSE) == 0)\r
65\r
18b144ea 66//\r
93c0bdec 67// HOST initiated commands\r
68//\r
69#define DEBUG_COMMAND_RESET (DEBUG_COMMAND_REQUEST | 0x00)\r
70#define DEBUG_COMMAND_GO (DEBUG_COMMAND_REQUEST | 0x01)\r
71#define DEBUG_COMMAND_BREAK_CAUSE (DEBUG_COMMAND_REQUEST | 0x02)\r
72#define DEBUG_COMMAND_SET_HW_BREAKPOINT (DEBUG_COMMAND_REQUEST | 0x03)\r
73#define DEBUG_COMMAND_CLEAR_HW_BREAKPOINT (DEBUG_COMMAND_REQUEST | 0x04)\r
74#define DEBUG_COMMAND_SINGLE_STEPPING (DEBUG_COMMAND_REQUEST | 0x05)\r
75#define DEBUG_COMMAND_SET_SW_BREAKPOINT (DEBUG_COMMAND_REQUEST | 0x06)\r
76#define DEBUG_COMMAND_READ_MEMORY (DEBUG_COMMAND_REQUEST | 0x07)\r
77#define DEBUG_COMMAND_WRITE_MEMORY (DEBUG_COMMAND_REQUEST | 0x08)\r
78#define DEBUG_COMMAND_READ_IO (DEBUG_COMMAND_REQUEST | 0x09)\r
79#define DEBUG_COMMAND_WRITE_IO (DEBUG_COMMAND_REQUEST | 0x0A)\r
80#define DEBUG_COMMAND_READ_REGISTER (DEBUG_COMMAND_REQUEST | 0x0B)\r
81#define DEBUG_COMMAND_WRITE_REGISTER (DEBUG_COMMAND_REQUEST | 0x0C)\r
82#define DEBUG_COMMAND_READ_ALL_REGISTERS (DEBUG_COMMAND_REQUEST | 0x0D)\r
83#define DEBUG_COMMAND_ARCH_MODE (DEBUG_COMMAND_REQUEST | 0x0E)\r
84#define DEBUG_COMMAND_READ_MSR (DEBUG_COMMAND_REQUEST | 0x0F)\r
85#define DEBUG_COMMAND_WRITE_MSR (DEBUG_COMMAND_REQUEST | 0x10)\r
86#define DEBUG_COMMAND_SET_DEBUG_SETTING (DEBUG_COMMAND_REQUEST | 0x11)\r
87#define DEBUG_COMMAND_GET_REVISION (DEBUG_COMMAND_REQUEST | 0x12)\r
88#define DEBUG_COMMAND_GET_EXCEPTION (DEBUG_COMMAND_REQUEST | 0x13)\r
89#define DEBUG_COMMAND_SET_VIEWPOINT (DEBUG_COMMAND_REQUEST | 0x14)\r
90#define DEBUG_COMMAND_GET_VIEWPOINT (DEBUG_COMMAND_REQUEST | 0x15)\r
91#define DEBUG_COMMAND_DETACH (DEBUG_COMMAND_REQUEST | 0x16)\r
92#define DEBUG_COMMAND_CPUID (DEBUG_COMMAND_REQUEST | 0x17)\r
93#define DEBUG_COMMAND_SEARCH_SIGNATURE (DEBUG_COMMAND_REQUEST | 0x18)\r
b422b62c 94#define DEBUG_COMMAND_HALT (DEBUG_COMMAND_REQUEST | 0x19)\r
93c0bdec 95\r
96//\r
97// TARGET initiated commands\r
98//\r
99#define DEBUG_COMMAND_INIT_BREAK (DEBUG_COMMAND_REQUEST | 0x3F)\r
100#define DEBUG_COMMAND_BREAK_POINT (DEBUG_COMMAND_REQUEST | 0x3E)\r
101#define DEBUG_COMMAND_MEMORY_READY (DEBUG_COMMAND_REQUEST | 0x3D)\r
102#define DEBUG_COMMAND_PRINT_MESSAGE (DEBUG_COMMAND_REQUEST | 0x3C)\r
b422b62c 103#define DEBUG_COMMAND_ATTACH_BREAK (DEBUG_COMMAND_REQUEST | 0x3B)\r
93c0bdec 104\r
105//\r
106// Response commands\r
107//\r
108#define DEBUG_COMMAND_OK (DEBUG_COMMAND_RESPONSE | 0x00)\r
109#define DEBUG_COMMAND_RESEND (DEBUG_COMMAND_RESPONSE | 0x01)\r
110#define DEBUG_COMMAND_ABORT (DEBUG_COMMAND_RESPONSE | 0x02)\r
111//\r
112// The below 2 commands are used when transferring big data (like > ~250 bytes).\r
113// The sequence is:\r
114// HOST TARGET\r
115// Request =>\r
116// <= IN_PROGRESS with partial data\r
117// CONTINUE =>\r
118// (could have multiple IN_PROGRESS and CONTINUE interactions)\r
119// <= OK with the last part of data\r
120// OK (no data as ACK) =>\r
121//\r
122#define DEBUG_COMMAND_IN_PROGRESS (DEBUG_COMMAND_RESPONSE | 0x03)\r
123#define DEBUG_COMMAND_CONTINUE (DEBUG_COMMAND_RESPONSE | 0x04)\r
124//\r
125// The below 2 commands are used to support deferred halt:\r
126// TARGET returns HALT_DEFERRED when it receives a HALT request in inter-active mode.\r
127// TARGET returns HALT_PROCESSED when it receives a GO request and has a pending HALT request.\r
128//\r
129#define DEBUG_COMMAND_HALT_DEFERRED (DEBUG_COMMAND_RESPONSE | 0x05)\r
130#define DEBUG_COMMAND_HALT_PROCESSED (DEBUG_COMMAND_RESPONSE | 0x06)\r
131\r
132#define DEBUG_COMMAND_TIMEOUT (DEBUG_COMMAND_RESPONSE | 0x07)\r
133#define DEBUG_COMMAND_NOT_SUPPORTED (DEBUG_COMMAND_RESPONSE | 0x0F)\r
18b144ea 134\r
135//\r
136// Definition for data field for debug packets\r
137//\r
93c0bdec 138#define DEBUG_DATA_UPPER_LIMIT 0xff // Upper limit for the data size, by the limit of the packet header definition.\r
18b144ea 139\r
93c0bdec 140#define DEBUG_DATA_MAXIMUM_REAL_DATA (DEBUG_DATA_UPPER_LIMIT - sizeof (DEBUG_PACKET_HEADER))\r
18b144ea 141\r
142//\r
143// Response data for DEBUG_COMMAND_BREAK_CAUSE\r
144//\r
145typedef struct {\r
146 UINT8 Cause;\r
147 UINT64 StopAddress;\r
148} DEBUG_DATA_RESPONSE_BREAK_CAUSE;\r
18b144ea 149//\r
150// Break type defintions for DEBUG_DATA_BREAK_CAUSE\r
151//\r
152#define DEBUG_DATA_BREAK_CAUSE_UNKNOWN 0\r
153#define DEBUG_DATA_BREAK_CAUSE_HW_BREAKPOINT 1\r
154#define DEBUG_DATA_BREAK_CAUSE_STEPPING 2\r
155#define DEBUG_DATA_BREAK_CAUSE_SW_BREAKPOINT 3\r
156#define DEBUG_DATA_BREAK_CAUSE_USER_HALT 4\r
157#define DEBUG_DATA_BREAK_CAUSE_IMAGE_LOAD 5\r
158#define DEBUG_DATA_BREAK_CAUSE_IMAGE_UNLOAD 6\r
159#define DEBUG_DATA_BREAK_CAUSE_SYSTEM_RESET 7\r
160#define DEBUG_DATA_BREAK_CAUSE_EXCEPTION 8\r
161#define DEBUG_DATA_BREAK_CAUSE_MEMORY_READY 9\r
162\r
163//\r
164// Response data for DEBUG_COMMAND_ARCH_MODE, defined as SOFT_DEBUGGER_PROCESSOR_...\r
165//\r
166typedef struct {\r
167 UINT8 CpuMode;\r
168} DEBUG_DATA_RESPONSE_ARCH_MODE;\r
18b144ea 169//\r
170// Cpu architecture defintions for DEBUG_DATA_RESPONSE_ARCH_MODE\r
171//\r
172#define DEBUG_DATA_BREAK_CPU_ARCH_IA16 0\r
173#define DEBUG_DATA_BREAK_CPU_ARCH_IA32 1\r
174#define DEBUG_DATA_BREAK_CPU_ARCH_X64 2\r
175\r
18b144ea 176typedef struct {\r
177 UINT8 Length:2; // Refer to below DEBUG_DATA_BREAKPOINT_LENGTH_XX macros\r
178 UINT8 Access:2; // Refer to below DEBUG_DATA_BREAKPOINT_ACCESS_XX macros\r
179 UINT8 Index:2; // Index of debug register\r
180 UINT8 Reserved:2;\r
181} DEBUG_DATA_BREAKPOINT_TYPE;\r
93c0bdec 182#define DEBUG_DATA_BREAKPOINT_MEMORY_ACCESS (0x3)\r
183#define DEBUG_DATA_BREAKPOINT_IO_ACCESS (0x2)\r
184#define DEBUG_DATA_BREAKPOINT_MEMORY_WRITE (0x1)\r
185#define DEBUG_DATA_BREAKPOINT_MEMORY_EXECUTE (0x0)\r
186#define DEBUG_DATA_BREAKPOINT_LENGTH_32 (0x3)\r
187#define DEBUG_DATA_BREAKPOINT_LENGTH_64 (0x2)\r
188#define DEBUG_DATA_BREAKPOINT_LENGTH_16 (0x1)\r
189#define DEBUG_DATA_BREAKPOINT_LENGTH_8 (0x0)\r
18b144ea 190\r
191//\r
93c0bdec 192// Request data for DEBUG_COMMAND_SET_HW_BREAKPOINT\r
18b144ea 193//\r
194typedef struct {\r
195 DEBUG_DATA_BREAKPOINT_TYPE Type;\r
196 UINT64 Address;\r
197} DEBUG_DATA_SET_HW_BREAKPOINT;\r
198\r
199//\r
93c0bdec 200// Request data for DEBUG_COMMAND_CLEAR_HW_BREAKPOINT\r
18b144ea 201//\r
202typedef struct {\r
203 UINT8 IndexMask; // 0x0f will clear all hw breakpoints\r
204} DEBUG_DATA_CLEAR_HW_BREAKPOINT;\r
205\r
206//\r
93c0bdec 207// Request and response data for DEBUG_COMMAND_SET_SW_BREAKPOINT\r
18b144ea 208//\r
209typedef struct {\r
210 UINT64 Address;\r
211} DEBUG_DATA_SET_SW_BREAKPOINT;\r
212\r
18b144ea 213typedef struct {\r
214 UINT8 OriginalData;\r
215} DEBUG_DATA_RESPONSE_SET_SW_BREAKPOINT;\r
216\r
217//\r
93c0bdec 218// Request data for DEBUG_COMMAND_READ_MEMORY\r
18b144ea 219//\r
220typedef struct {\r
221 UINT64 Address;\r
93c0bdec 222 UINT8 Width;\r
18b144ea 223 UINT16 Count;\r
93c0bdec 224} DEBUG_DATA_READ_MEMORY;\r
18b144ea 225\r
226//\r
93c0bdec 227// Request data for DEBUG_COMMAND_WRITE_MEMORY\r
18b144ea 228//\r
229typedef struct {\r
230 UINT64 Address;\r
93c0bdec 231 UINT8 Width;\r
18b144ea 232 UINT16 Count;\r
93c0bdec 233 UINT8 Data[1]; // The actual length is (Width * Count)\r
234} DEBUG_DATA_WRITE_MEMORY;\r
18b144ea 235\r
236//\r
93c0bdec 237// Request and response data for DEBUG_COMMAND_READ_IO\r
18b144ea 238//\r
239typedef struct {\r
93c0bdec 240 UINT64 Port;\r
18b144ea 241 UINT8 Width;\r
242} DEBUG_DATA_READ_IO;\r
243\r
18b144ea 244typedef struct {\r
93c0bdec 245 UINT8 Data[1]; // The actual length depends on the packet header\r
18b144ea 246} DEBUG_DATA_RESPONSE_READ_IO;\r
247\r
248//\r
93c0bdec 249// Request data for DEBUG_COMMAND_WRITE_IO\r
18b144ea 250//\r
251typedef struct {\r
93c0bdec 252 UINT64 Port;\r
18b144ea 253 UINT8 Width;\r
93c0bdec 254 UINT8 Data[1]; // The actual length is Width\r
18b144ea 255} DEBUG_DATA_WRITE_IO;\r
256\r
257//\r
93c0bdec 258// Request data for DEBUG_COMMAND_READ_REGISTER\r
18b144ea 259//\r
260typedef struct {\r
93c0bdec 261 UINT8 Index; // defined as SOFT_DEBUGGER_REGISTER_XX\r
18b144ea 262} DEBUG_DATA_READ_REGISTER;\r
263\r
264//\r
93c0bdec 265// Request data for DEBUG_COMMAND_WRITE_REGISTER\r
18b144ea 266//\r
267typedef struct {\r
93c0bdec 268 UINT8 Index; // defined as SOFT_DEBUGGER_REGISTER_XX\r
269 UINT8 Length;\r
270 UINT8 Data[1]; // The actual length is Length\r
18b144ea 271} DEBUG_DATA_WRITE_REGISTER;\r
272\r
273//\r
93c0bdec 274// Request and response data for DEBUG_COMMAND_READ_MSR\r
18b144ea 275//\r
276typedef struct {\r
277 UINT32 Index;\r
278} DEBUG_DATA_READ_MSR;\r
279\r
18b144ea 280typedef struct {\r
281 UINT64 Value;\r
282} DEBUG_DATA_RESPONSE_READ_MSR;\r
283\r
284//\r
93c0bdec 285// Request data for DEBUG_COMMAND_WRITE_MSR\r
18b144ea 286//\r
287typedef struct {\r
288 UINT32 Index;\r
289 UINT64 Value;\r
290} DEBUG_DATA_WRITE_MSR;\r
291\r
18b144ea 292//\r
293// Response data for DEBUG_COMMAND_GET_REVISION\r
294//\r
295typedef struct {\r
296 UINT32 Revision;\r
297 UINT32 Capabilities;\r
298} DEBUG_DATA_RESPONSE_GET_REVISION;\r
299\r
300//\r
301// Response data for DEBUG_COMMAND_GET_EXCEPTION\r
302//\r
303typedef struct {\r
304 UINT8 ExceptionNum;\r
93c0bdec 305 UINT32 ExceptionData;\r
18b144ea 306} DEBUG_DATA_RESPONSE_GET_EXCEPTION;\r
307\r
18b144ea 308//\r
93c0bdec 309// Request data for DEBUG_DATA_SET_DEBUG_SETTING\r
18b144ea 310//\r
311typedef struct {\r
93c0bdec 312 UINT8 Key;\r
313 UINT8 Value;\r
314} DEBUG_DATA_SET_DEBUG_SETTING;\r
315//\r
316// Supported keys\r
317//\r
b422b62c 318#define DEBUG_AGENT_SETTING_SMM_ENTRY_BREAK 1\r
319#define DEBUG_AGENT_SETTING_PRINT_ERROR_LEVEL 2\r
320#define DEBUG_AGENT_SETTING_BOOT_SCRIPT_ENTRY_BREAK 3\r
93c0bdec 321//\r
322// Bitmask of print error level for debug message\r
323//\r
324#define DEBUG_AGENT_ERROR BIT0\r
325#define DEBUG_AGENT_WARNING BIT1\r
326#define DEBUG_AGENT_INFO BIT2\r
327#define DEBUG_AGENT_VERBOSE BIT3\r
18b144ea 328\r
329//\r
93c0bdec 330// Request data for DEBUG_COMMAND_SET_VIEWPOINT\r
18b144ea 331//\r
332typedef struct {\r
333 UINT32 ViewPoint; // The index of viewpoint will be set\r
334} DEBUG_DATA_SET_VIEWPOINT;\r
335\r
336//\r
337// Response data for DEBUG_COMMAND_GET_VIEWPOINT\r
338//\r
339typedef struct {\r
340 UINT32 ViewPoint; // The index of viewpoint will be returned\r
341} DEBUG_DATA_RESPONSE_GET_VIEWPOINT;\r
342\r
93c0bdec 343//\r
344// Request and response data for DEBUG_COMMAND_CPUID\r
345//\r
346typedef struct {\r
347 UINT32 Eax; // The value of EAX prior to invoking the CPUID instruction\r
348 UINT32 Ecx; // The value of ECX prior to invoking the CPUID instruction\r
349} DEBUG_DATA_CPUID;\r
350\r
351typedef struct {\r
352 UINT32 Eax; // The value of EAX returned by the CPUID instruction\r
353 UINT32 Ebx; // The value of EBX returned by the CPUID instruction\r
354 UINT32 Ecx; // The value of ECX returned by the CPUID instruction\r
355 UINT32 Edx; // The value of EDX returned by the CPUID instruction\r
356} DEBUG_DATA_RESPONSE_CPUID;\r
18b144ea 357\r
93c0bdec 358//\r
359// Request and response data for DEBUG_COMMAND_SEARCH_SIGNATURE\r
360//\r
361typedef struct {\r
362 UINT64 Start;\r
363 UINT32 Count;\r
364 UINT32 Alignment;\r
365 BOOLEAN Positive; // TRUE to search in higher address memory\r
366 UINT8 DataLength;\r
367 UINT8 Data[1];\r
368} DEBUG_DATA_SEARCH_SIGNATURE;\r
369\r
370typedef struct {\r
371 UINT64 Address; // -1 indicates not found\r
372} DEBUG_DATA_RESPONSE_SEARCH_SIGNATURE;\r
373\r
374#pragma pack()\r
18b144ea 375\r
376#endif\r
377\r