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source: vbox/trunk/src/VBox/Devices/EFI/Firmware/SourceLevelDebugPkg/Include/TransferProtocol.h

Last change on this file was 99404, checked in by vboxsync, 19 months ago

Devices/EFI/FirmwareNew: Update to edk2-stable202302 and make it build, bugref:4643

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1/** @file
2 Transfer protocol definitions used by debug agent and host. It is only
3 intended to be used by Debug related module implementation.
4
5 Copyright (c) 2010 - 2017, Intel Corporation. All rights reserved.<BR>
6 SPDX-License-Identifier: BSD-2-Clause-Patent
7
8**/
9
10#ifndef __TRANSFER_PROTOCOL_H__
11#define __TRANSFER_PROTOCOL_H__
12
13#include "ProcessorContext.h"
14
15//
16// Current revision of transfer protocol
17// 0.4: Packet compression and decompression.
18//
19#define DEBUG_AGENT_REVISION_03 ((0 << 16) | 03)
20#define DEBUG_AGENT_REVISION_04 ((0 << 16) | 04)
21#define DEBUG_AGENT_CAPABILITIES 0
22
23//
24// Definitions for the (A)ttach command
25//
26#define DEBUG_STARTING_SYMBOL_ATTACH (0xFA)
27
28//
29// Definition for starting symbol of a normal debug packet. Choose a non-ASCII to avoid conflict with other serial output.
30//
31#define DEBUG_STARTING_SYMBOL_NORMAL (0xFE)
32
33//
34// Definition for starting symbol of a (C)ompressed debug packet. Choose a non-ASCII to avoid conflict with other serial output.
35//
36#define DEBUG_STARTING_SYMBOL_COMPRESS (0xFC)
37
38#pragma pack(1)
39
40//
41// Definition for debug packet header for debug packets (not including attach command)
42//
43typedef struct {
44 UINT8 StartSymbol;
45 UINT8 Command;
46 UINT8 Length; // Length of Debug Packet including header and payload in byte
47 UINT8 SequenceNo;
48 UINT16 Crc;
49} DEBUG_PACKET_HEADER;
50
51//
52// Definition for Command field for debug packets
53//
54#define DEBUG_COMMAND_REQUEST (0 << 7)
55#define DEBUG_COMMAND_RESPONSE (1 << 7)
56
57#define IS_REQUEST(x) (((x)->Command & DEBUG_COMMAND_RESPONSE) == 0)
58
59//
60// HOST initiated commands
61//
62#define DEBUG_COMMAND_RESET (DEBUG_COMMAND_REQUEST | 0x00)
63#define DEBUG_COMMAND_GO (DEBUG_COMMAND_REQUEST | 0x01)
64#define DEBUG_COMMAND_BREAK_CAUSE (DEBUG_COMMAND_REQUEST | 0x02)
65#define DEBUG_COMMAND_SET_HW_BREAKPOINT (DEBUG_COMMAND_REQUEST | 0x03)
66#define DEBUG_COMMAND_CLEAR_HW_BREAKPOINT (DEBUG_COMMAND_REQUEST | 0x04)
67#define DEBUG_COMMAND_SINGLE_STEPPING (DEBUG_COMMAND_REQUEST | 0x05)
68#define DEBUG_COMMAND_SET_SW_BREAKPOINT (DEBUG_COMMAND_REQUEST | 0x06)
69#define DEBUG_COMMAND_READ_MEMORY (DEBUG_COMMAND_REQUEST | 0x07)
70#define DEBUG_COMMAND_WRITE_MEMORY (DEBUG_COMMAND_REQUEST | 0x08)
71#define DEBUG_COMMAND_READ_IO (DEBUG_COMMAND_REQUEST | 0x09)
72#define DEBUG_COMMAND_WRITE_IO (DEBUG_COMMAND_REQUEST | 0x0A)
73#define DEBUG_COMMAND_READ_REGISTER (DEBUG_COMMAND_REQUEST | 0x0B)
74#define DEBUG_COMMAND_WRITE_REGISTER (DEBUG_COMMAND_REQUEST | 0x0C)
75#define DEBUG_COMMAND_READ_ALL_REGISTERS (DEBUG_COMMAND_REQUEST | 0x0D)
76#define DEBUG_COMMAND_ARCH_MODE (DEBUG_COMMAND_REQUEST | 0x0E)
77#define DEBUG_COMMAND_READ_MSR (DEBUG_COMMAND_REQUEST | 0x0F)
78#define DEBUG_COMMAND_WRITE_MSR (DEBUG_COMMAND_REQUEST | 0x10)
79#define DEBUG_COMMAND_SET_DEBUG_SETTING (DEBUG_COMMAND_REQUEST | 0x11)
80#define DEBUG_COMMAND_GET_REVISION (DEBUG_COMMAND_REQUEST | 0x12)
81#define DEBUG_COMMAND_GET_EXCEPTION (DEBUG_COMMAND_REQUEST | 0x13)
82#define DEBUG_COMMAND_SET_VIEWPOINT (DEBUG_COMMAND_REQUEST | 0x14)
83#define DEBUG_COMMAND_GET_VIEWPOINT (DEBUG_COMMAND_REQUEST | 0x15)
84#define DEBUG_COMMAND_DETACH (DEBUG_COMMAND_REQUEST | 0x16)
85#define DEBUG_COMMAND_CPUID (DEBUG_COMMAND_REQUEST | 0x17)
86#define DEBUG_COMMAND_SEARCH_SIGNATURE (DEBUG_COMMAND_REQUEST | 0x18)
87#define DEBUG_COMMAND_HALT (DEBUG_COMMAND_REQUEST | 0x19)
88
89//
90// TARGET initiated commands
91//
92#define DEBUG_COMMAND_INIT_BREAK (DEBUG_COMMAND_REQUEST | 0x3F)
93#define DEBUG_COMMAND_BREAK_POINT (DEBUG_COMMAND_REQUEST | 0x3E)
94#define DEBUG_COMMAND_MEMORY_READY (DEBUG_COMMAND_REQUEST | 0x3D)
95#define DEBUG_COMMAND_PRINT_MESSAGE (DEBUG_COMMAND_REQUEST | 0x3C)
96#define DEBUG_COMMAND_ATTACH_BREAK (DEBUG_COMMAND_REQUEST | 0x3B)
97
98//
99// Response commands
100//
101#define DEBUG_COMMAND_OK (DEBUG_COMMAND_RESPONSE | 0x00)
102#define DEBUG_COMMAND_RESEND (DEBUG_COMMAND_RESPONSE | 0x01)
103#define DEBUG_COMMAND_ABORT (DEBUG_COMMAND_RESPONSE | 0x02)
104//
105// The below 2 commands are used when transferring big data (like > ~250 bytes).
106// The sequence is:
107// HOST TARGET
108// Request =>
109// <= IN_PROGRESS with partial data
110// CONTINUE =>
111// (could have multiple IN_PROGRESS and CONTINUE interactions)
112// <= OK with the last part of data
113// OK (no data as ACK) =>
114//
115#define DEBUG_COMMAND_IN_PROGRESS (DEBUG_COMMAND_RESPONSE | 0x03)
116#define DEBUG_COMMAND_CONTINUE (DEBUG_COMMAND_RESPONSE | 0x04)
117//
118// The below 2 commands are used to support deferred halt:
119// TARGET returns HALT_DEFERRED when it receives a HALT request in inter-active mode.
120// TARGET returns HALT_PROCESSED when it receives a GO request and has a pending HALT request.
121//
122#define DEBUG_COMMAND_HALT_DEFERRED (DEBUG_COMMAND_RESPONSE | 0x05)
123#define DEBUG_COMMAND_HALT_PROCESSED (DEBUG_COMMAND_RESPONSE | 0x06)
124
125#define DEBUG_COMMAND_TIMEOUT (DEBUG_COMMAND_RESPONSE | 0x07)
126#define DEBUG_COMMAND_NOT_SUPPORTED (DEBUG_COMMAND_RESPONSE | 0x0F)
127
128//
129// Definition for data field for debug packets
130//
131#define DEBUG_DATA_UPPER_LIMIT 0xff // Upper limit for the data size, by the limit of the packet header definition.
132
133#define DEBUG_DATA_MAXIMUM_REAL_DATA (DEBUG_DATA_UPPER_LIMIT - sizeof (DEBUG_PACKET_HEADER))
134
135//
136// Response data for DEBUG_COMMAND_BREAK_CAUSE
137//
138typedef struct {
139 UINT8 Cause;
140 UINT64 StopAddress;
141} DEBUG_DATA_RESPONSE_BREAK_CAUSE;
142//
143// Break type definitions for DEBUG_DATA_BREAK_CAUSE
144//
145#define DEBUG_DATA_BREAK_CAUSE_UNKNOWN 0
146#define DEBUG_DATA_BREAK_CAUSE_HW_BREAKPOINT 1
147#define DEBUG_DATA_BREAK_CAUSE_STEPPING 2
148#define DEBUG_DATA_BREAK_CAUSE_SW_BREAKPOINT 3
149#define DEBUG_DATA_BREAK_CAUSE_USER_HALT 4
150#define DEBUG_DATA_BREAK_CAUSE_IMAGE_LOAD 5
151#define DEBUG_DATA_BREAK_CAUSE_IMAGE_UNLOAD 6
152#define DEBUG_DATA_BREAK_CAUSE_SYSTEM_RESET 7
153#define DEBUG_DATA_BREAK_CAUSE_EXCEPTION 8
154#define DEBUG_DATA_BREAK_CAUSE_MEMORY_READY 9
155
156//
157// Response data for DEBUG_COMMAND_ARCH_MODE, defined as SOFT_DEBUGGER_PROCESSOR_...
158//
159typedef struct {
160 UINT8 CpuMode;
161} DEBUG_DATA_RESPONSE_ARCH_MODE;
162//
163// Cpu architecture definitions for DEBUG_DATA_RESPONSE_ARCH_MODE
164//
165#define DEBUG_DATA_BREAK_CPU_ARCH_IA16 0
166#define DEBUG_DATA_BREAK_CPU_ARCH_IA32 1
167#define DEBUG_DATA_BREAK_CPU_ARCH_X64 2
168
169typedef struct {
170 UINT8 Length : 2; // Refer to below DEBUG_DATA_BREAKPOINT_LENGTH_XX macros
171 UINT8 Access : 2; // Refer to below DEBUG_DATA_BREAKPOINT_ACCESS_XX macros
172 UINT8 Index : 2; // Index of debug register
173 UINT8 Reserved : 2;
174} DEBUG_DATA_BREAKPOINT_TYPE;
175#define DEBUG_DATA_BREAKPOINT_MEMORY_ACCESS (0x3)
176#define DEBUG_DATA_BREAKPOINT_IO_ACCESS (0x2)
177#define DEBUG_DATA_BREAKPOINT_MEMORY_WRITE (0x1)
178#define DEBUG_DATA_BREAKPOINT_MEMORY_EXECUTE (0x0)
179#define DEBUG_DATA_BREAKPOINT_LENGTH_32 (0x3)
180#define DEBUG_DATA_BREAKPOINT_LENGTH_64 (0x2)
181#define DEBUG_DATA_BREAKPOINT_LENGTH_16 (0x1)
182#define DEBUG_DATA_BREAKPOINT_LENGTH_8 (0x0)
183
184//
185// Request data for DEBUG_COMMAND_SET_HW_BREAKPOINT
186//
187typedef struct {
188 DEBUG_DATA_BREAKPOINT_TYPE Type;
189 UINT64 Address;
190} DEBUG_DATA_SET_HW_BREAKPOINT;
191
192//
193// Request data for DEBUG_COMMAND_CLEAR_HW_BREAKPOINT
194//
195typedef struct {
196 UINT8 IndexMask; // 0x0f will clear all hw breakpoints
197} DEBUG_DATA_CLEAR_HW_BREAKPOINT;
198
199//
200// Request and response data for DEBUG_COMMAND_SET_SW_BREAKPOINT
201//
202typedef struct {
203 UINT64 Address;
204} DEBUG_DATA_SET_SW_BREAKPOINT;
205
206typedef struct {
207 UINT8 OriginalData;
208} DEBUG_DATA_RESPONSE_SET_SW_BREAKPOINT;
209
210//
211// Request data for DEBUG_COMMAND_READ_MEMORY
212//
213typedef struct {
214 UINT64 Address;
215 UINT8 Width;
216 UINT16 Count;
217} DEBUG_DATA_READ_MEMORY;
218
219//
220// Request data for DEBUG_COMMAND_WRITE_MEMORY
221//
222typedef struct {
223 UINT64 Address;
224 UINT8 Width;
225 UINT16 Count;
226 UINT8 Data[1]; // The actual length is (Width * Count)
227} DEBUG_DATA_WRITE_MEMORY;
228
229//
230// Request and response data for DEBUG_COMMAND_READ_IO
231//
232typedef struct {
233 UINT64 Port;
234 UINT8 Width;
235} DEBUG_DATA_READ_IO;
236
237typedef struct {
238 UINT8 Data[1]; // The actual length depends on the packet header
239} DEBUG_DATA_RESPONSE_READ_IO;
240
241//
242// Request data for DEBUG_COMMAND_WRITE_IO
243//
244typedef struct {
245 UINT64 Port;
246 UINT8 Width;
247 UINT8 Data[1]; // The actual length is Width
248} DEBUG_DATA_WRITE_IO;
249
250//
251// Request data for DEBUG_COMMAND_READ_REGISTER
252//
253typedef struct {
254 UINT8 Index; // defined as SOFT_DEBUGGER_REGISTER_XX
255} DEBUG_DATA_READ_REGISTER;
256
257//
258// Request data for DEBUG_COMMAND_WRITE_REGISTER
259//
260typedef struct {
261 UINT8 Index; // defined as SOFT_DEBUGGER_REGISTER_XX
262 UINT8 Length;
263 UINT8 Data[1]; // The actual length is Length
264} DEBUG_DATA_WRITE_REGISTER;
265
266//
267// Request and response data for DEBUG_COMMAND_READ_MSR
268//
269typedef struct {
270 UINT32 Index;
271} DEBUG_DATA_READ_MSR;
272
273typedef struct {
274 UINT64 Value;
275} DEBUG_DATA_RESPONSE_READ_MSR;
276
277//
278// Request data for DEBUG_COMMAND_WRITE_MSR
279//
280typedef struct {
281 UINT32 Index;
282 UINT64 Value;
283} DEBUG_DATA_WRITE_MSR;
284
285//
286// Response data for DEBUG_COMMAND_GET_REVISION
287//
288typedef struct {
289 UINT32 Revision;
290 UINT32 Capabilities;
291} DEBUG_DATA_RESPONSE_GET_REVISION;
292
293//
294// Response data for DEBUG_COMMAND_GET_EXCEPTION
295//
296typedef struct {
297 UINT8 ExceptionNum;
298 UINT32 ExceptionData;
299} DEBUG_DATA_RESPONSE_GET_EXCEPTION;
300
301//
302// Request data for DEBUG_DATA_SET_DEBUG_SETTING
303//
304typedef struct {
305 UINT8 Key;
306 UINT8 Value;
307} DEBUG_DATA_SET_DEBUG_SETTING;
308//
309// Supported keys
310//
311#define DEBUG_AGENT_SETTING_SMM_ENTRY_BREAK 1
312#define DEBUG_AGENT_SETTING_PRINT_ERROR_LEVEL 2
313#define DEBUG_AGENT_SETTING_BOOT_SCRIPT_ENTRY_BREAK 3
314//
315// Bitmask of print error level for debug message
316//
317#define DEBUG_AGENT_ERROR BIT0
318#define DEBUG_AGENT_WARNING BIT1
319#define DEBUG_AGENT_INFO BIT2
320#define DEBUG_AGENT_VERBOSE BIT3
321
322//
323// Request data for DEBUG_COMMAND_SET_VIEWPOINT
324//
325typedef struct {
326 UINT32 ViewPoint; // The index of viewpoint will be set
327} DEBUG_DATA_SET_VIEWPOINT;
328
329//
330// Response data for DEBUG_COMMAND_GET_VIEWPOINT
331//
332typedef struct {
333 UINT32 ViewPoint; // The index of viewpoint will be returned
334} DEBUG_DATA_RESPONSE_GET_VIEWPOINT;
335
336//
337// Request and response data for DEBUG_COMMAND_CPUID
338//
339typedef struct {
340 UINT32 Eax; // The value of EAX prior to invoking the CPUID instruction
341 UINT32 Ecx; // The value of ECX prior to invoking the CPUID instruction
342} DEBUG_DATA_CPUID;
343
344typedef struct {
345 UINT32 Eax; // The value of EAX returned by the CPUID instruction
346 UINT32 Ebx; // The value of EBX returned by the CPUID instruction
347 UINT32 Ecx; // The value of ECX returned by the CPUID instruction
348 UINT32 Edx; // The value of EDX returned by the CPUID instruction
349} DEBUG_DATA_RESPONSE_CPUID;
350
351//
352// Request and response data for DEBUG_COMMAND_SEARCH_SIGNATURE
353//
354typedef struct {
355 UINT64 Start;
356 UINT32 Count;
357 UINT32 Alignment;
358 BOOLEAN Positive; // TRUE to search in higher address memory
359 UINT8 DataLength;
360 UINT8 Data[1];
361} DEBUG_DATA_SEARCH_SIGNATURE;
362
363typedef struct {
364 UINT64 Address; // -1 indicates not found
365} DEBUG_DATA_RESPONSE_SEARCH_SIGNATURE;
366
367#pragma pack()
368
369#endif
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