DBGCEmulateCodeView.cpp@ 45983

Last change on this file since 45983 was 44399, checked in by vboxsync, 12 years ago
DBGF,DBGC,++: PVM -> PUVM. Some refactoring and cleanup as well.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 174.8 KB

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1	/* $Id: DBGCEmulateCodeView.cpp 44399 2013-01-27 21:12:53Z vboxsync $ */
2	/** @file
3	* DBGC - Debugger Console, CodeView / WinDbg Emulation.
4	*/
5
6	/*
7	* Copyright (C) 2006-2013 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	/*******************************************************************************
19	* Header Files *
20	*******************************************************************************/
21	#define LOG_GROUP LOG_GROUP_DBGC
22	#include <VBox/dbg.h>
23	#include <VBox/vmm/dbgf.h>
24	#include <VBox/vmm/pgm.h>
25	#include <VBox/vmm/cpum.h>
26	#include <VBox/dis.h>
27	#include <VBox/param.h>
28	#include <VBox/err.h>
29	#include <VBox/log.h>
30
31	#include <iprt/asm.h>
32	#include <iprt/mem.h>
33	#include <iprt/string.h>
34	#include <iprt/assert.h>
35	#include <iprt/ctype.h>
36
37	#include <stdlib.h>
38	#include <stdio.h>
39
40	#include "DBGCInternal.h"
41
42
43	/*******************************************************************************
44	* Internal Functions *
45	*******************************************************************************/
46	static FNDBGCCMD dbgcCmdBrkAccess;
47	static FNDBGCCMD dbgcCmdBrkClear;
48	static FNDBGCCMD dbgcCmdBrkDisable;
49	static FNDBGCCMD dbgcCmdBrkEnable;
50	static FNDBGCCMD dbgcCmdBrkList;
51	static FNDBGCCMD dbgcCmdBrkSet;
52	static FNDBGCCMD dbgcCmdBrkREM;
53	static FNDBGCCMD dbgcCmdDumpMem;
54	static FNDBGCCMD dbgcCmdDumpDT;
55	static FNDBGCCMD dbgcCmdDumpIDT;
56	static FNDBGCCMD dbgcCmdDumpPageDir;
57	static FNDBGCCMD dbgcCmdDumpPageDirBoth;
58	static FNDBGCCMD dbgcCmdDumpPageHierarchy;
59	static FNDBGCCMD dbgcCmdDumpPageTable;
60	static FNDBGCCMD dbgcCmdDumpPageTableBoth;
61	static FNDBGCCMD dbgcCmdDumpTSS;
62	static FNDBGCCMD dbgcCmdEditMem;
63	static FNDBGCCMD dbgcCmdGo;
64	static FNDBGCCMD dbgcCmdListModules;
65	static FNDBGCCMD dbgcCmdListNear;
66	static FNDBGCCMD dbgcCmdListSource;
67	static FNDBGCCMD dbgcCmdMemoryInfo;
68	static FNDBGCCMD dbgcCmdReg;
69	static FNDBGCCMD dbgcCmdRegGuest;
70	static FNDBGCCMD dbgcCmdRegHyper;
71	static FNDBGCCMD dbgcCmdRegTerse;
72	static FNDBGCCMD dbgcCmdSearchMem;
73	static FNDBGCCMD dbgcCmdSearchMemType;
74	static FNDBGCCMD dbgcCmdStack;
75	static FNDBGCCMD dbgcCmdTrace;
76	static FNDBGCCMD dbgcCmdUnassemble;
77
78
79	/*******************************************************************************
80	* Global Variables *
81	*******************************************************************************/
82	/** 'ba' arguments. */
83	static const DBGCVARDESC g_aArgBrkAcc[] =
84	{
85	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
86	{ 1, 1, DBGCVAR_CAT_STRING, 0, "access", "The access type: x=execute, rw=read/write (alias r), w=write, i=not implemented." },
87	{ 1, 1, DBGCVAR_CAT_NUMBER, 0, "size", "The access size: 1, 2, 4, or 8. 'x' access requires 1, and 8 requires amd64 long mode." },
88	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
89	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
90	{ 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "max passes", "The number of passes after which we stop triggering the breakpoint. (~0 is default)" },
91	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
92	};
93
94
95	/** 'bc', 'bd', 'be' arguments. */
96	static const DBGCVARDESC g_aArgBrks[] =
97	{
98	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
99	{ 0, ~0U, DBGCVAR_CAT_NUMBER, 0, "#bp", "Breakpoint number." },
100	{ 0, 1, DBGCVAR_CAT_STRING, 0, "all", "All breakpoints." },
101	};
102
103
104	/** 'bp' arguments. */
105	static const DBGCVARDESC g_aArgBrkSet[] =
106	{
107	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
108	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
109	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
110	{ 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "max passes", "The number of passes after which we stop triggering the breakpoint. (~0 is default)" },
111	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
112	};
113
114
115	/** 'br' arguments. */
116	static const DBGCVARDESC g_aArgBrkREM[] =
117	{
118	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
119	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
120	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
121	{ 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "max passes", "The number of passes after which we stop triggering the breakpoint. (~0 is default)" },
122	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
123	};
124
125
126	/** 'd?' arguments. */
127	static const DBGCVARDESC g_aArgDumpMem[] =
128	{
129	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
130	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start dumping memory." },
131	};
132
133
134	/** 'dg', 'dga', 'dl', 'dla' arguments. */
135	static const DBGCVARDESC g_aArgDumpDT[] =
136	{
137	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
138	{ 0, ~0U, DBGCVAR_CAT_NUMBER, 0, "sel", "Selector or selector range." },
139	{ 0, ~0U, DBGCVAR_CAT_POINTER, 0, "address", "Far address which selector should be dumped." },
140	};
141
142
143	/** 'di', 'dia' arguments. */
144	static const DBGCVARDESC g_aArgDumpIDT[] =
145	{
146	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
147	{ 0, ~0U, DBGCVAR_CAT_NUMBER, 0, "int", "The interrupt vector or interrupt vector range." },
148	};
149
150
151	/** 'dpd' arguments. /
152	static const DBGCVARDESC g_aArgDumpPD[] =
153	{
154	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
155	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "index", "Index into the page directory." },
156	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from. Range is applied to the page directory." },
157	};
158
159
160	/** 'dpda' arguments. */
161	static const DBGCVARDESC g_aArgDumpPDAddr[] =
162	{
163	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
164	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page directory entry to start dumping from." },
165	};
166
167
168	/** 'dph' arguments. /
169	static const DBGCVARDESC g_aArgDumpPH[] =
170	{
171	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
172	{ 0, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "Where in the address space to start dumping and for how long (range). The default address/range will be used if omitted." },
173	{ 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "cr3", "The CR3 value to use. The current CR3 of the context will be used if omitted." },
174	{ 0, 1, DBGCVAR_CAT_STRING, DBGCVD_FLAGS_DEP_PREV, "mode", "The paging mode: legacy, pse, pae, long, ept. Append '-np' for nested paging and '-nx' for no-execute. The current mode will be used if omitted." },
175	};
176
177
178	/** 'dpt?' arguments. */
179	static const DBGCVARDESC g_aArgDumpPT[] =
180	{
181	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
182	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from." },
183	};
184
185
186	/** 'dpta' arguments. */
187	static const DBGCVARDESC g_aArgDumpPTAddr[] =
188	{
189	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
190	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page table entry to start dumping from." },
191	};
192
193
194	/** 'dt' arguments. */
195	static const DBGCVARDESC g_aArgDumpTSS[] =
196	{
197	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
198	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "tss", "TSS selector number." },
199	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "tss:ign\|addr", "TSS address. If the selector is a TSS selector, the offset will be ignored." }
200	};
201
202
203	/** 'e?' arguments. */
204	static const DBGCVARDESC g_aArgEditMem[] =
205	{
206	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
207	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to write." },
208	{ 1, ~0U, DBGCVAR_CAT_NUMBER, 0, "value", "Value to write." },
209	};
210
211
212	/** 'lm' arguments. */
213	static const DBGCVARDESC g_aArgListMods[] =
214	{
215	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
216	{ 0, ~0U, DBGCVAR_CAT_STRING, 0, "module", "Module name." },
217	};
218
219
220	/** 'ln' arguments. */
221	static const DBGCVARDESC g_aArgListNear[] =
222	{
223	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
224	{ 0, ~0U, DBGCVAR_CAT_POINTER, 0, "address", "Address of the symbol to look up." },
225	{ 0, ~0U, DBGCVAR_CAT_SYMBOL, 0, "symbol", "Symbol to lookup." },
226	};
227
228
229	/** 'ls' arguments. */
230	static const DBGCVARDESC g_aArgListSource[] =
231	{
232	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
233	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start looking for source lines." },
234	};
235
236
237	/** 'm' argument. */
238	static const DBGCVARDESC g_aArgMemoryInfo[] =
239	{
240	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
241	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Pointer to obtain info about." },
242	};
243
244
245	/** 'r' arguments. */
246	static const DBGCVARDESC g_aArgReg[] =
247	{
248	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
249	{ 0, 1, DBGCVAR_CAT_SYMBOL, 0, "register", "Register to show or set." },
250	{ 0, 1, DBGCVAR_CAT_NUMBER_NO_RANGE, DBGCVD_FLAGS_DEP_PREV, "value", "New register value." },
251	};
252
253
254	/** 's' arguments. */
255	static const DBGCVARDESC g_aArgSearchMem[] =
256	{
257	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
258	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-b", "Byte string." },
259	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-w", "Word string." },
260	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-d", "DWord string." },
261	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-q", "QWord string." },
262	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-a", "ASCII string." },
263	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-u", "Unicode string." },
264	{ 0, 1, DBGCVAR_CAT_OPTION_NUMBER, 0, "-n <Hits>", "Maximum number of hits." },
265	{ 0, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
266	{ 0, ~0U, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
267	};
268
269
270	/** 's?' arguments. */
271	static const DBGCVARDESC g_aArgSearchMemType[] =
272	{
273	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
274	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
275	{ 1, ~0U, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
276	};
277
278
279	/** 'u' arguments. */
280	static const DBGCVARDESC g_aArgUnassemble[] =
281	{
282	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
283	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start disassembling." },
284	};
285
286
287	/** Command descriptors for the CodeView / WinDbg emulation.
288	* The emulation isn't attempting to be identical, only somewhat similar.
289	*/
290	const DBGCCMD g_aCmdsCodeView[] =
291	{
292	/* pszCmd, cArgsMin, cArgsMax, paArgDescs, cArgDescs, fFlags, pfnHandler pszSyntax, ....pszDescription */
293	{ "ba", 3, 6, &g_aArgBrkAcc[0], RT_ELEMENTS(g_aArgBrkAcc), 0, dbgcCmdBrkAccess, "<access> <size> <address> [passes [max passes]] [cmds]",
294	"Sets a data access breakpoint." },
295	{ "bc", 1, ~0U, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkClear, "all \| <bp#> [bp# []]", "Deletes a set of breakpoints." },
296	{ "bd", 1, ~0U, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkDisable, "all \| <bp#> [bp# []]", "Disables a set of breakpoints." },
297	{ "be", 1, ~0U, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkEnable, "all \| <bp#> [bp# []]", "Enables a set of breakpoints." },
298	{ "bl", 0, 0, NULL, 0, 0, dbgcCmdBrkList, "", "Lists all the breakpoints." },
299	{ "bp", 1, 4, &g_aArgBrkSet[0], RT_ELEMENTS(g_aArgBrkSet), 0, dbgcCmdBrkSet, "<address> [passes [max passes]] [cmds]",
300	"Sets a breakpoint (int 3)." },
301	{ "br", 1, 4, &g_aArgBrkREM[0], RT_ELEMENTS(g_aArgBrkREM), 0, dbgcCmdBrkREM, "<address> [passes [max passes]] [cmds]",
302	"Sets a recompiler specific breakpoint." },
303	{ "d", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory using last element size." },
304	{ "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
305	{ "db", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in bytes." },
306	{ "dd", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in double words." },
307	{ "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
308	{ "dg", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT)." },
309	{ "dga", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT) including not-present entries." },
310	{ "di", 0, ~0U, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT)." },
311	{ "dia", 0, ~0U, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT) including not-present entries." },
312	{ "dl", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT)." },
313	{ "dla", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT) including not-present entries." },
314	{ "dpd", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDir, "[addr\|index]", "Dumps page directory entries of the default context." },
315	{ "dpda", 0, 1, &g_aArgDumpPDAddr[0],RT_ELEMENTS(g_aArgDumpPDAddr), 0, dbgcCmdDumpPageDir, "[addr]", "Dumps memory at given address as a page directory." },
316	{ "dpdb", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDirBoth, "[addr\|index]", "Dumps page directory entries of the guest and the hypervisor. " },
317	{ "dpdg", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDir, "[addr\|index]", "Dumps page directory entries of the guest." },
318	{ "dpdh", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDir, "[addr\|index]", "Dumps page directory entries of the hypervisor. " },
319	{ "dph", 0, 3, &g_aArgDumpPH[0], RT_ELEMENTS(g_aArgDumpPH), 0, dbgcCmdDumpPageHierarchy, "[addr [cr3 [mode]]", "Dumps the paging hierarchy at for specfied address range. Default context." },
320	{ "dphg", 0, 3, &g_aArgDumpPH[0], RT_ELEMENTS(g_aArgDumpPH), 0, dbgcCmdDumpPageHierarchy, "[addr [cr3 [mode]]", "Dumps the paging hierarchy at for specfied address range. Guest context." },
321	{ "dphh", 0, 3, &g_aArgDumpPH[0], RT_ELEMENTS(g_aArgDumpPH), 0, dbgcCmdDumpPageHierarchy, "[addr [cr3 [mode]]", "Dumps the paging hierarchy at for specfied address range. Hypervisor context." },
322	{ "dpt", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the default context." },
323	{ "dpta", 1, 1, &g_aArgDumpPTAddr[0],RT_ELEMENTS(g_aArgDumpPTAddr), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps memory at given address as a page table." },
324	{ "dptb", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTableBoth,"<addr>", "Dumps page table entries of the guest and the hypervisor." },
325	{ "dptg", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the guest." },
326	{ "dpth", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the hypervisor." },
327	{ "dq", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in quad words." },
328	{ "dt", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the task state segment (TSS)." },
329	{ "dt16", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the 16-bit task state segment (TSS)." },
330	{ "dt32", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the 32-bit task state segment (TSS)." },
331	{ "dt64", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the 64-bit task state segment (TSS)." },
332	{ "dw", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in words." },
333	/** @todo add 'e', 'ea str', 'eza str', 'eu str' and 'ezu str'. See also
334	* dbgcCmdSearchMem and its dbgcVarsToBytes usage. */
335	{ "eb", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 1-byte value to memory." },
336	{ "ew", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 2-byte value to memory." },
337	{ "ed", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 4-byte value to memory." },
338	{ "eq", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 8-byte value to memory." },
339	{ "g", 0, 0, NULL, 0, 0, dbgcCmdGo, "", "Continue execution." },
340	{ "k", 0, 0, NULL, 0, 0, dbgcCmdStack, "", "Callstack." },
341	{ "kg", 0, 0, NULL, 0, 0, dbgcCmdStack, "", "Callstack - guest." },
342	{ "kh", 0, 0, NULL, 0, 0, dbgcCmdStack, "", "Callstack - hypervisor." },
343	{ "lm", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules." },
344	{ "lmo", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules and their segments." },
345	{ "ln", 0, ~0U, &g_aArgListNear[0], RT_ELEMENTS(g_aArgListNear), 0, dbgcCmdListNear, "[addr/sym [..]]", "List symbols near to the address. Default address is CS:EIP." },
346	{ "ls", 0, 1, &g_aArgListSource[0],RT_ELEMENTS(g_aArgListSource), 0, dbgcCmdListSource, "[addr]", "Source." },
347	{ "m", 1, 1, &g_aArgMemoryInfo[0],RT_ELEMENTS(g_aArgMemoryInfo), 0, dbgcCmdMemoryInfo, "<addr>", "Display information about that piece of memory." },
348	{ "r", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdReg, "[reg [newval]]", "Show or set register(s) - active reg set." },
349	{ "rg", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdRegGuest, "[reg [newval]]", "Show or set register(s) - guest reg set." },
350	{ "rg32", 0, 0, NULL, 0, 0, dbgcCmdRegGuest, "", "Show 32-bit guest registers." },
351	{ "rg64", 0, 0, NULL, 0, 0, dbgcCmdRegGuest, "", "Show 64-bit guest registers." },
352	{ "rh", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdRegHyper, "[reg [newval]]", "Show or set register(s) - hypervisor reg set." },
353	{ "rt", 0, 0, NULL, 0, 0, dbgcCmdRegTerse, "", "Toggles terse / verbose register info." },
354	{ "s", 0, ~0U, &g_aArgSearchMem[0], RT_ELEMENTS(g_aArgSearchMem), 0, dbgcCmdSearchMem, "[options] <range> <pattern>", "Continue last search." },
355	{ "sa", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an ascii string." },
356	{ "sb", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more bytes." },
357	{ "sd", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more double words." },
358	{ "sq", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more quad words." },
359	{ "su", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an unicode string." },
360	{ "sw", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more words." },
361	{ "t", 0, 0, NULL, 0, 0, dbgcCmdTrace, "", "Instruction trace (step into)." },
362	{ "u", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble." },
363	{ "u64", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 64-bit code." },
364	{ "u32", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 32-bit code." },
365	{ "u16", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code." },
366	{ "uv86", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code with v8086/real mode addressing." },
367	};
368
369	/** The number of commands in the CodeView/WinDbg emulation. */
370	const uint32_t g_cCmdsCodeView = RT_ELEMENTS(g_aCmdsCodeView);
371
372
373
374
375	/**
376	* @interface_method_impl{FNDBCCMD, The 'go' command.}
377	*/
378	static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
379	{
380	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
381
382	/*
383	* Check if the VM is halted or not before trying to resume it.
384	*/
385	if (!DBGFR3IsHalted(pUVM))
386	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The VM is already running");
387
388	int rc = DBGFR3Resume(pUVM);
389	if (RT_FAILURE(rc))
390	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3Resume");
391
392	NOREF(paArgs); NOREF(cArgs);
393	return VINF_SUCCESS;
394	}
395
396
397	/**
398	* @interface_method_impl{FNDBCCMD, The 'ba' command.}
399	*/
400	static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
401	{
402	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
403
404	/*
405	* Interpret access type.
406	*/
407	if ( !strchr("xrwi", paArgs[0].u.pszString[0])
408	\|\| paArgs[0].u.pszString[1])
409	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access type '%s' for '%s'. Valid types are 'e', 'r', 'w' and 'i'",
410	paArgs[0].u.pszString, pCmd->pszCmd);
411	uint8_t fType = 0;
412	switch (paArgs[0].u.pszString[0])
413	{
414	case 'x': fType = X86_DR7_RW_EO; break;
415	case 'r': fType = X86_DR7_RW_RW; break;
416	case 'w': fType = X86_DR7_RW_WO; break;
417	case 'i': fType = X86_DR7_RW_IO; break;
418	}
419
420	/*
421	* Validate size.
422	*/
423	if (fType == X86_DR7_RW_EO && paArgs[1].u.u64Number != 1)
424	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 'x' access type requires size 1!",
425	paArgs[1].u.u64Number, pCmd->pszCmd);
426	switch (paArgs[1].u.u64Number)
427	{
428	case 1:
429	case 2:
430	case 4:
431	break;
432	/case 8: - later/
433	default:
434	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 1, 2 or 4!",
435	paArgs[1].u.u64Number, pCmd->pszCmd);
436	}
437	uint8_t cb = (uint8_t)paArgs[1].u.u64Number;
438
439	/*
440	* Convert the pointer to a DBGF address.
441	*/
442	DBGFADDRESS Address;
443	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[2], &Address);
444	if (RT_FAILURE(rc))
445	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,%DV,)", &paArgs[2]);
446
447	/*
448	* Pick out the optional arguments.
449	*/
450	uint64_t iHitTrigger = 0;
451	uint64_t iHitDisable = ~0;
452	const char *pszCmds = NULL;
453	unsigned iArg = 3;
454	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
455	{
456	iHitTrigger = paArgs[iArg].u.u64Number;
457	iArg++;
458	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
459	{
460	iHitDisable = paArgs[iArg].u.u64Number;
461	iArg++;
462	}
463	}
464	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
465	{
466	pszCmds = paArgs[iArg].u.pszString;
467	iArg++;
468	}
469
470	/*
471	* Try set the breakpoint.
472	*/
473	uint32_t iBp;
474	rc = DBGFR3BpSetReg(pUVM, &Address, iHitTrigger, iHitDisable, fType, cb, &iBp);
475	if (RT_SUCCESS(rc))
476	{
477	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
478	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
479	if (RT_SUCCESS(rc))
480	return DBGCCmdHlpPrintf(pCmdHlp, "Set access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
481	if (rc == VERR_DBGC_BP_EXISTS)
482	{
483	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
484	if (RT_SUCCESS(rc))
485	return DBGCCmdHlpPrintf(pCmdHlp, "Updated access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
486	}
487	int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
488	AssertRC(rc2);
489	}
490	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set access breakpoint at %RGv", Address.FlatPtr);
491	}
492
493
494	/**
495	* @interface_method_impl{FNDBCCMD, The 'bc' command.}
496	*/
497	static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
498	{
499	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
500
501	/*
502	* Enumerate the arguments.
503	*/
504	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
505	int rc = VINF_SUCCESS;
506	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
507	{
508	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
509	{
510	/* one */
511	uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
512	if (iBp == paArgs[iArg].u.u64Number)
513	{
514	int rc2 = DBGFR3BpClear(pUVM, iBp);
515	if (RT_FAILURE(rc2))
516	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpClear(,%#x)", iBp);
517	if (RT_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
518	dbgcBpDelete(pDbgc, iBp);
519	}
520	else
521	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
522	}
523	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
524	{
525	/* all */
526	PDBGCBP pBp = pDbgc->pFirstBp;
527	while (pBp)
528	{
529	uint32_t iBp = pBp->iBp;
530	pBp = pBp->pNext;
531
532	int rc2 = DBGFR3BpClear(pUVM, iBp);
533	if (RT_FAILURE(rc2))
534	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpClear(,%#x)", iBp);
535	if (RT_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
536	dbgcBpDelete(pDbgc, iBp);
537	}
538	}
539	else
540	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
541	}
542	return rc;
543	}
544
545
546	/**
547	* @interface_method_impl{FNDBCCMD, The 'bd' command.}
548	*/
549	static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
550	{
551	/*
552	* Enumerate the arguments.
553	*/
554	int rc = VINF_SUCCESS;
555	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
556	{
557	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
558	{
559	/* one */
560	uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
561	if (iBp == paArgs[iArg].u.u64Number)
562	{
563	rc = DBGFR3BpDisable(pUVM, iBp);
564	if (RT_FAILURE(rc))
565	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpDisable failed for breakpoint %#x", iBp);
566	}
567	else
568	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
569	}
570	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
571	{
572	/* all */
573	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
574	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
575	{
576	int rc2 = DBGFR3BpDisable(pUVM, pBp->iBp);
577	if (RT_FAILURE(rc2))
578	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpDisable failed for breakpoint %#x", pBp->iBp);
579	}
580	}
581	else
582	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
583	}
584	return rc;
585	}
586
587
588	/**
589	* @interface_method_impl{FNDBCCMD, The 'be' command.}
590	*/
591	static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
592	{
593	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
594
595	/*
596	* Enumerate the arguments.
597	*/
598	int rc = VINF_SUCCESS;
599	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
600	{
601	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
602	{
603	/* one */
604	uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
605	if (iBp == paArgs[iArg].u.u64Number)
606	{
607	rc = DBGFR3BpEnable(pUVM, iBp);
608	if (RT_FAILURE(rc))
609	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnable failed for breakpoint %#x", iBp);
610	}
611	else
612	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
613	}
614	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
615	{
616	/* all */
617	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
618	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
619	{
620	int rc2 = DBGFR3BpEnable(pUVM, pBp->iBp);
621	if (RT_FAILURE(rc2))
622	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpEnable failed for breakpoint %#x", pBp->iBp);
623	}
624	}
625	else
626	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
627	}
628	return rc;
629	}
630
631
632	/**
633	* Breakpoint enumeration callback function.
634	*
635	* @returns VBox status code. Any failure will stop the enumeration.
636	* @param pUVM The user mode VM handle.
637	* @param pvUser The user argument.
638	* @param pBp Pointer to the breakpoint information. (readonly)
639	*/
640	static DECLCALLBACK(int) dbgcEnumBreakpointsCallback(PUVM pUVM, void *pvUser, PCDBGFBP pBp)
641	{
642	PDBGC pDbgc = (PDBGC)pvUser;
643	PDBGCBP pDbgcBp = dbgcBpGet(pDbgc, pBp->iBp);
644
645	/*
646	* BP type and size.
647	*/
648	char chType;
649	char cb = 1;
650	switch (pBp->enmType)
651	{
652	case DBGFBPTYPE_INT3:
653	chType = 'p';
654	break;
655	case DBGFBPTYPE_REG:
656	switch (pBp->u.Reg.fType)
657	{
658	case X86_DR7_RW_EO: chType = 'x'; break;
659	case X86_DR7_RW_WO: chType = 'w'; break;
660	case X86_DR7_RW_IO: chType = 'i'; break;
661	case X86_DR7_RW_RW: chType = 'r'; break;
662	default: chType = '?'; break;
663
664	}
665	cb = pBp->u.Reg.cb;
666	break;
667	case DBGFBPTYPE_REM:
668	chType = 'r';
669	break;
670	default:
671	chType = '?';
672	break;
673	}
674
675	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%#4x %c %d %c %RGv %04RX64 (%04RX64 to ",
676	pBp->iBp, pBp->fEnabled ? 'e' : 'd', (int)cb, chType,
677	pBp->GCPtr, pBp->cHits, pBp->iHitTrigger);
678	if (pBp->iHitDisable == ~(uint64_t)0)
679	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "~0) ");
680	else
681	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%04RX64)", pBp->iHitDisable);
682
683	/*
684	* Try resolve the address.
685	*/
686	RTDBGSYMBOL Sym;
687	RTINTPTR off;
688	DBGFADDRESS Addr;
689	int rc = DBGFR3AsSymbolByAddr(pUVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pDbgc->pUVM, &Addr, pBp->GCPtr), &off, &Sym, NULL);
690	if (RT_SUCCESS(rc))
691	{
692	if (!off)
693	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s", Sym.szName);
694	else if (off > 0)
695	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s+%RGv", Sym.szName, off);
696	else
697	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s+%RGv", Sym.szName, -off);
698	}
699
700	/*
701	* The commands.
702	*/
703	if (pDbgcBp)
704	{
705	if (pDbgcBp->cchCmd)
706	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n cmds: '%s'\n", pDbgcBp->szCmd);
707	else
708	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n");
709	}
710	else
711	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " [unknown bp]\n");
712
713	return VINF_SUCCESS;
714	}
715
716
717	/**
718	* @interface_method_impl{FNDBCCMD, The 'bl' command.}
719	*/
720	static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
721	{
722	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
723	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, -1, cArgs == 0);
724	NOREF(paArgs);
725
726	/*
727	* Enumerate the breakpoints.
728	*/
729	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
730	int rc = DBGFR3BpEnum(pUVM, dbgcEnumBreakpointsCallback, pDbgc);
731	if (RT_FAILURE(rc))
732	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnum");
733	return rc;
734	}
735
736
737	/**
738	* @interface_method_impl{FNDBCCMD, The 'bp' command.}
739	*/
740	static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
741	{
742	/*
743	* Convert the pointer to a DBGF address.
744	*/
745	DBGFADDRESS Address;
746	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
747	if (RT_FAILURE(rc))
748	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
749
750	/*
751	* Pick out the optional arguments.
752	*/
753	uint64_t iHitTrigger = 0;
754	uint64_t iHitDisable = ~0;
755	const char *pszCmds = NULL;
756	unsigned iArg = 1;
757	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
758	{
759	iHitTrigger = paArgs[iArg].u.u64Number;
760	iArg++;
761	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
762	{
763	iHitDisable = paArgs[iArg].u.u64Number;
764	iArg++;
765	}
766	}
767	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
768	{
769	pszCmds = paArgs[iArg].u.pszString;
770	iArg++;
771	}
772
773	/*
774	* Try set the breakpoint.
775	*/
776	uint32_t iBp;
777	rc = DBGFR3BpSet(pUVM, &Address, iHitTrigger, iHitDisable, &iBp);
778	if (RT_SUCCESS(rc))
779	{
780	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
781	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
782	if (RT_SUCCESS(rc))
783	return DBGCCmdHlpPrintf(pCmdHlp, "Set breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
784	if (rc == VERR_DBGC_BP_EXISTS)
785	{
786	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
787	if (RT_SUCCESS(rc))
788	return DBGCCmdHlpPrintf(pCmdHlp, "Updated breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
789	}
790	int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
791	AssertRC(rc2);
792	}
793	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set breakpoint at %RGv", Address.FlatPtr);
794	}
795
796
797	/**
798	* @interface_method_impl{FNDBCCMD, The 'br' command.}
799	*/
800	static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
801	{
802	/*
803	* Convert the pointer to a DBGF address.
804	*/
805	DBGFADDRESS Address;
806	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
807	if (RT_FAILURE(rc))
808	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
809
810	/*
811	* Pick out the optional arguments.
812	*/
813	uint64_t iHitTrigger = 0;
814	uint64_t iHitDisable = ~0;
815	const char *pszCmds = NULL;
816	unsigned iArg = 1;
817	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
818	{
819	iHitTrigger = paArgs[iArg].u.u64Number;
820	iArg++;
821	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
822	{
823	iHitDisable = paArgs[iArg].u.u64Number;
824	iArg++;
825	}
826	}
827	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
828	{
829	pszCmds = paArgs[iArg].u.pszString;
830	iArg++;
831	}
832
833	/*
834	* Try set the breakpoint.
835	*/
836	uint32_t iBp;
837	rc = DBGFR3BpSetREM(pUVM, &Address, iHitTrigger, iHitDisable, &iBp);
838	if (RT_SUCCESS(rc))
839	{
840	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
841	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
842	if (RT_SUCCESS(rc))
843	return DBGCCmdHlpPrintf(pCmdHlp, "Set REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
844	if (rc == VERR_DBGC_BP_EXISTS)
845	{
846	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
847	if (RT_SUCCESS(rc))
848	return DBGCCmdHlpPrintf(pCmdHlp, "Updated REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
849	}
850	int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
851	AssertRC(rc2);
852	}
853	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set REM breakpoint at %RGv", Address.FlatPtr);
854	}
855
856
857	/**
858	* @interface_method_impl{FNDBCCMD, The 'u' command.}
859	*/
860	static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
861	{
862	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
863
864	/*
865	* Validate input.
866	*/
867	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
868	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, -1, cArgs <= 1);
869	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 0 \|\| DBGCVAR_ISPOINTER(paArgs[0].enmType));
870
871	if (!cArgs && !DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
872	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Don't know where to start disassembling");
873
874	/*
875	* Check the desired mode.
876	*/
877	unsigned fFlags = DBGF_DISAS_FLAGS_NO_ADDRESS;
878	switch (pCmd->pszCmd[1])
879	{
880	default: AssertFailed();
881	case '\0': fFlags \|= DBGF_DISAS_FLAGS_DEFAULT_MODE; break;
882	case '6': fFlags \|= DBGF_DISAS_FLAGS_64BIT_MODE; break;
883	case '3': fFlags \|= DBGF_DISAS_FLAGS_32BIT_MODE; break;
884	case '1': fFlags \|= DBGF_DISAS_FLAGS_16BIT_MODE; break;
885	case 'v': fFlags \|= DBGF_DISAS_FLAGS_16BIT_REAL_MODE; break;
886	}
887
888	/*
889	* Find address.
890	*/
891	if (!cArgs)
892	{
893	if (!DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
894	{
895	/** @todo Batch query CS, RIP & CPU mode. */
896	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
897	if ( pDbgc->fRegCtxGuest
898	&& CPUMIsGuestIn64BitCode(pVCpu))
899	{
900	pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FLAT;
901	pDbgc->SourcePos.u.GCFlat = CPUMGetGuestRIP(pVCpu);
902	}
903	else
904	{
905	pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FAR;
906	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
907	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
908	}
909
910	if (pDbgc->fRegCtxGuest)
911	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_GUEST;
912	else
913	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_HYPER;
914	}
915	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_NONE;
916	}
917	else
918	pDbgc->DisasmPos = paArgs[0];
919	pDbgc->pLastPos = &pDbgc->DisasmPos;
920
921	/*
922	* Range.
923	*/
924	switch (pDbgc->DisasmPos.enmRangeType)
925	{
926	case DBGCVAR_RANGE_NONE:
927	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
928	pDbgc->DisasmPos.u64Range = 10;
929	break;
930
931	case DBGCVAR_RANGE_ELEMENTS:
932	if (pDbgc->DisasmPos.u64Range > 2048)
933	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Too many lines requested. Max is 2048 lines");
934	break;
935
936	case DBGCVAR_RANGE_BYTES:
937	if (pDbgc->DisasmPos.u64Range > 65536)
938	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The requested range is too big. Max is 64KB");
939	break;
940
941	default:
942	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown range type %d", pDbgc->DisasmPos.enmRangeType);
943	}
944
945	/*
946	* Convert physical and host addresses to guest addresses.
947	*/
948	int rc;
949	switch (pDbgc->DisasmPos.enmType)
950	{
951	case DBGCVAR_TYPE_GC_FLAT:
952	case DBGCVAR_TYPE_GC_FAR:
953	break;
954	case DBGCVAR_TYPE_GC_PHYS:
955	case DBGCVAR_TYPE_HC_FLAT:
956	case DBGCVAR_TYPE_HC_PHYS:
957	{
958	DBGCVAR VarTmp;
959	rc = DBGCCmdHlpEval(pCmdHlp, &VarTmp, "%%(%Dv)", &pDbgc->DisasmPos);
960	if (RT_FAILURE(rc))
961	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "failed to evaluate '%%(%Dv)'", &pDbgc->DisasmPos);
962	pDbgc->DisasmPos = VarTmp;
963	break;
964	}
965	default: AssertFailed(); break;
966	}
967
968	/*
969	* Print address.
970	* todo: Change to list near.
971	*/
972	#if 0
973	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DisasmPos);
974	if (RT_FAILURE(rc))
975	return rc;
976	#endif
977
978	/*
979	* Do the disassembling.
980	*/
981	unsigned cTries = 32;
982	int iRangeLeft = (int)pDbgc->DisasmPos.u64Range;
983	if (iRangeLeft == 0) /* kludge for 'r'. */
984	iRangeLeft = -1;
985	for (;;)
986	{
987	/*
988	* Disassemble the instruction.
989	*/
990	char szDis[256];
991	uint32_t cbInstr = 1;
992	if (pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FLAT)
993	rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, DBGF_SEL_FLAT, pDbgc->DisasmPos.u.GCFlat, fFlags,
994	&szDis[0], sizeof(szDis), &cbInstr);
995	else
996	rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, pDbgc->DisasmPos.u.GCFar.sel, pDbgc->DisasmPos.u.GCFar.off, fFlags,
997	&szDis[0], sizeof(szDis), &cbInstr);
998	if (RT_SUCCESS(rc))
999	{
1000	/* print it */
1001	rc = DBGCCmdHlpPrintf(pCmdHlp, "%-16DV %s\n", &pDbgc->DisasmPos, &szDis[0]);
1002	if (RT_FAILURE(rc))
1003	return rc;
1004	}
1005	else
1006	{
1007	/* bitch. */
1008	rc = DBGCCmdHlpPrintf(pCmdHlp, "Failed to disassemble instruction, skipping one byte.\n");
1009	if (RT_FAILURE(rc))
1010	return rc;
1011	if (cTries-- > 0)
1012	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Too many disassembly failures. Giving up");
1013	cbInstr = 1;
1014	}
1015
1016	/* advance */
1017	if (iRangeLeft < 0) /* 'r' */
1018	break;
1019	if (pDbgc->DisasmPos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1020	iRangeLeft--;
1021	else
1022	iRangeLeft -= cbInstr;
1023	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DisasmPos, "(%Dv) + %x", &pDbgc->DisasmPos, cbInstr);
1024	if (RT_FAILURE(rc))
1025	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpEval(,,'(%Dv) + %x')", &pDbgc->DisasmPos, cbInstr);
1026	if (iRangeLeft <= 0)
1027	break;
1028	fFlags &= ~(DBGF_DISAS_FLAGS_CURRENT_GUEST \| DBGF_DISAS_FLAGS_CURRENT_HYPER);
1029	}
1030
1031	NOREF(pCmd);
1032	return VINF_SUCCESS;
1033	}
1034
1035
1036	/**
1037	* @interface_method_impl{FNDBCCMD, The 'ls' command.}
1038	*/
1039	static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1040	{
1041	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1042
1043	/*
1044	* Validate input.
1045	*/
1046	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
1047	if (cArgs == 1)
1048	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
1049	if (!pUVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1050	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Don't know where to start listing...");
1051	if (!pUVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
1052	return DBGCCmdHlpFail(pCmdHlp, pCmd, "GC address but no VM");
1053
1054	/*
1055	* Find address.
1056	*/
1057	if (!cArgs)
1058	{
1059	if (!DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1060	{
1061	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
1062	pDbgc->SourcePos.enmType = DBGCVAR_TYPE_GC_FAR;
1063	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
1064	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
1065	}
1066	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_NONE;
1067	}
1068	else
1069	pDbgc->SourcePos = paArgs[0];
1070	pDbgc->pLastPos = &pDbgc->SourcePos;
1071
1072	/*
1073	* Ensure the source address is flat GC.
1074	*/
1075	switch (pDbgc->SourcePos.enmType)
1076	{
1077	case DBGCVAR_TYPE_GC_FLAT:
1078	break;
1079	case DBGCVAR_TYPE_GC_PHYS:
1080	case DBGCVAR_TYPE_GC_FAR:
1081	case DBGCVAR_TYPE_HC_FLAT:
1082	case DBGCVAR_TYPE_HC_PHYS:
1083	{
1084	int rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "%%(%Dv)", &pDbgc->SourcePos);
1085	if (RT_FAILURE(rc))
1086	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid address or address type. (rc=%d)\n", rc);
1087	break;
1088	}
1089	default: AssertFailed(); break;
1090	}
1091
1092	/*
1093	* Range.
1094	*/
1095	switch (pDbgc->SourcePos.enmRangeType)
1096	{
1097	case DBGCVAR_RANGE_NONE:
1098	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1099	pDbgc->SourcePos.u64Range = 10;
1100	break;
1101
1102	case DBGCVAR_RANGE_ELEMENTS:
1103	if (pDbgc->SourcePos.u64Range > 2048)
1104	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many lines requested. Max is 2048 lines.\n");
1105	break;
1106
1107	case DBGCVAR_RANGE_BYTES:
1108	if (pDbgc->SourcePos.u64Range > 65536)
1109	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
1110	break;
1111
1112	default:
1113	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->SourcePos.enmRangeType);
1114	}
1115
1116	/*
1117	* Do the disassembling.
1118	*/
1119	bool fFirst = 1;
1120	DBGFLINE LinePrev = { 0, 0, "" };
1121	int iRangeLeft = (int)pDbgc->SourcePos.u64Range;
1122	if (iRangeLeft == 0) /* kludge for 'r'. */
1123	iRangeLeft = -1;
1124	for (;;)
1125	{
1126	/*
1127	* Get line info.
1128	*/
1129	DBGFLINE Line;
1130	RTGCINTPTR off;
1131	int rc = DBGFR3LineByAddr(pUVM, pDbgc->SourcePos.u.GCFlat, &off, &Line);
1132	if (RT_FAILURE(rc))
1133	return VINF_SUCCESS;
1134
1135	unsigned cLines = 0;
1136	if (memcmp(&Line, &LinePrev, sizeof(Line)))
1137	{
1138	/*
1139	* Print filenamename
1140	*/
1141	if (!fFirst && strcmp(Line.szFilename, LinePrev.szFilename))
1142	fFirst = true;
1143	if (fFirst)
1144	{
1145	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "[%s @ %d]\n", Line.szFilename, Line.uLineNo);
1146	if (RT_FAILURE(rc))
1147	return rc;
1148	}
1149
1150	/*
1151	* Try open the file and read the line.
1152	*/
1153	FILE *phFile = fopen(Line.szFilename, "r");
1154	if (phFile)
1155	{
1156	/* Skip ahead to the desired line. */
1157	char szLine[4096];
1158	unsigned cBefore = fFirst ? RT_MIN(2, Line.uLineNo - 1) : Line.uLineNo - LinePrev.uLineNo - 1;
1159	if (cBefore > 7)
1160	cBefore = 0;
1161	unsigned cLeft = Line.uLineNo - cBefore;
1162	while (cLeft > 0)
1163	{
1164	szLine[0] = '\0';
1165	if (!fgets(szLine, sizeof(szLine), phFile))
1166	break;
1167	cLeft--;
1168	}
1169	if (!cLeft)
1170	{
1171	/* print the before lines */
1172	for (;;)
1173	{
1174	size_t cch = strlen(szLine);
1175	while (cch > 0 && (szLine[cch - 1] == '\r' \|\| szLine[cch - 1] == '\n' \|\| RT_C_IS_SPACE(szLine[cch - 1])) )
1176	szLine[--cch] = '\0';
1177	if (cBefore-- <= 0)
1178	break;
1179
1180	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %4d: %s\n", Line.uLineNo - cBefore - 1, szLine);
1181	szLine[0] = '\0';
1182	fgets(szLine, sizeof(szLine), phFile);
1183	cLines++;
1184	}
1185	/* print the actual line */
1186	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08llx %4d: %s\n", Line.Address, Line.uLineNo, szLine);
1187	}
1188	fclose(phFile);
1189	if (RT_FAILURE(rc))
1190	return rc;
1191	fFirst = false;
1192	}
1193	else
1194	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Warning: couldn't open source file '%s'\n", Line.szFilename);
1195
1196	LinePrev = Line;
1197	}
1198
1199
1200	/*
1201	* Advance
1202	*/
1203	if (iRangeLeft < 0) /* 'r' */
1204	break;
1205	if (pDbgc->SourcePos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1206	iRangeLeft -= cLines;
1207	else
1208	iRangeLeft -= 1;
1209	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "(%Dv) + %x", &pDbgc->SourcePos, 1);
1210	if (RT_FAILURE(rc))
1211	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->SourcePos, 1);
1212	if (iRangeLeft <= 0)
1213	break;
1214	}
1215
1216	NOREF(pCmd);
1217	return 0;
1218	}
1219
1220
1221	/**
1222	* @interface_method_impl{FNDBCCMD, The 'r' command.}
1223	*/
1224	static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1225	{
1226	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1227	if (!pDbgc->fRegCtxGuest)
1228	return dbgcCmdRegHyper(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1229	return dbgcCmdRegGuest(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1230	}
1231
1232
1233	/**
1234	* @interface_method_impl{FNDBCCMD, Common worker for the dbgcCmdReg*()
1235	* commands.}
1236	*/
1237	static DECLCALLBACK(int) dbgcCmdRegCommon(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs,
1238	const char *pszPrefix)
1239	{
1240	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1241	Assert(cArgs == 1 \|\| cArgs == 2); /* cArgs == 0 is handled by the caller */
1242	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1 \|\| cArgs == 2);
1243	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_STRING
1244	\|\| paArgs[0].enmType == DBGCVAR_TYPE_SYMBOL);
1245
1246	/*
1247	* Parse the register name and kind.
1248	*/
1249	const char *pszReg = paArgs[0].u.pszString;
1250	if (*pszReg == '@')
1251	pszReg++;
1252	VMCPUID idCpu = pDbgc->idCpu;
1253	if (*pszPrefix)
1254	idCpu \|= DBGFREG_HYPER_VMCPUID;
1255	if (*pszReg == '.')
1256	{
1257	pszReg++;
1258	idCpu \|= DBGFREG_HYPER_VMCPUID;
1259	}
1260	const char * const pszActualPrefix = idCpu & DBGFREG_HYPER_VMCPUID ? "." : "";
1261
1262	/*
1263	* Query the register type & value (the setter needs the type).
1264	*/
1265	DBGFREGVALTYPE enmType;
1266	DBGFREGVAL Value;
1267	int rc = DBGFR3RegNmQuery(pUVM, idCpu, pszReg, &Value, &enmType);
1268	if (RT_FAILURE(rc))
1269	{
1270	if (rc == VERR_DBGF_REGISTER_NOT_FOUND)
1271	return DBGCCmdHlpVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "Unknown register: '%s%s'.\n",
1272	pszActualPrefix, pszReg);
1273	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmQuery failed querying '%s%s': %Rrc.\n",
1274	pszActualPrefix, pszReg, rc);
1275	}
1276	if (cArgs == 1)
1277	{
1278	/*
1279	* Show the register.
1280	*/
1281	char szValue[160];
1282	rc = DBGFR3RegFormatValue(szValue, sizeof(szValue), &Value, enmType, true /fSpecial/);
1283	if (RT_SUCCESS(rc))
1284	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s%s=%s\n", pszActualPrefix, pszReg, szValue);
1285	else
1286	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1287	}
1288	else if (cArgs == 2)
1289	{
1290	/*
1291	* Modify the register.
1292	*/
1293	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 1, paArgs[1].enmType == DBGCVAR_TYPE_STRING
1294	\|\| paArgs[1].enmType == DBGCVAR_TYPE_SYMBOL);
1295	if (enmType != DBGFREGVALTYPE_DTR)
1296	{
1297	enmType = DBGFREGVALTYPE_U64;
1298	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.u64);
1299	}
1300	else
1301	{
1302	enmType = DBGFREGVALTYPE_DTR;
1303	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.dtr.u64Base);
1304	if (RT_SUCCESS(rc) && paArgs[1].enmRangeType != DBGCVAR_RANGE_NONE)
1305	Value.dtr.u32Limit = (uint32_t)paArgs[1].u64Range;
1306	}
1307	if (RT_SUCCESS(rc))
1308	{
1309	rc = DBGFR3RegNmSet(pUVM, idCpu, pszReg, &Value, enmType);
1310	if (RT_FAILURE(rc))
1311	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmSet failed settings '%s%s': %Rrc\n",
1312	pszActualPrefix, pszReg, rc);
1313	}
1314	else
1315	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1316	}
1317	else
1318	{
1319	NOREF(pCmd); NOREF(paArgs);
1320	rc = DBGCCmdHlpPrintf(pCmdHlp, "Huh? cArgs=%d Expected 0, 1 or 2!\n", cArgs);
1321	}
1322	return rc;
1323	}
1324
1325
1326	/**
1327	* @interface_method_impl{FNDBCCMD, The 'rg', 'rg64' and 'rg32' commands.}
1328	*/
1329	static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1330	{
1331	/*
1332	* Show all registers our selves.
1333	*/
1334	if (cArgs == 0)
1335	{
1336	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1337	bool const f64BitMode = !strcmp(pCmd->pszCmd, "rg64")
1338	\|\| ( !strcmp(pCmd->pszCmd, "rg32")
1339	&& CPUMIsGuestIn64BitCode(VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu)));
1340	char szDisAndRegs[8192];
1341	int rc;
1342
1343	if (pDbgc->fRegTerse)
1344	{
1345	if (f64BitMode)
1346	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1347	"u %016VR{rip} L 0\n"
1348	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1349	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1350	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1351	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1352	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1353	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} rflags=%08VR{rflags}\n");
1354	else
1355	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1356	"u %04VR{cs}:%08VR{eip} L 0\n"
1357	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1358	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1359	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} eflags=%08VR{eflags}\n");
1360	}
1361	else
1362	{
1363	if (f64BitMode)
1364	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1365	"u %016VR{rip} L 0\n"
1366	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1367	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1368	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1369	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1370	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1371	"cs={%04VR{cs} base=%016VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} cr0=%016VR{cr0}\n"
1372	"ds={%04VR{ds} base=%016VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} cr2=%016VR{cr2}\n"
1373	"es={%04VR{es} base=%016VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} cr3=%016VR{cr3}\n"
1374	"fs={%04VR{fs} base=%016VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr4=%016VR{cr4}\n"
1375	"gs={%04VR{gs} base=%016VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr8=%016VR{cr8}\n"
1376	"ss={%04VR{ss} base=%016VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1377	"dr0=%016VR{dr0} dr1=%016VR{dr1} dr2=%016VR{dr2} dr3=%016VR{dr3}\n"
1378	"dr6=%016VR{dr6} dr7=%016VR{dr7}\n"
1379	"gdtr=%016VR{gdtr_base}:%04VR{gdtr_lim} idtr=%016VR{idtr_base}:%04VR{idtr_lim} rflags=%08VR{rflags}\n"
1380	"ldtr={%04VR{ldtr} base=%016VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%08VR{ldtr_attr}}\n"
1381	"tr ={%04VR{tr} base=%016VR{tr_base} limit=%08VR{tr_lim} flags=%08VR{tr_attr}}\n"
1382	" sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1383	" efer=%016VR{efer}\n"
1384	" pat=%016VR{pat}\n"
1385	" sf_mask=%016VR{sf_mask}\n"
1386	"krnl_gs_base=%016VR{krnl_gs_base}\n"
1387	" lstar=%016VR{lstar}\n"
1388	" star=%016VR{star} cstar=%016VR{cstar}\n"
1389	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1390	);
1391	else
1392	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1393	"u %04VR{cs}:%08VR{eip} L 0\n"
1394	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1395	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1396	"cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} dr0=%08VR{dr0} dr1=%08VR{dr1}\n"
1397	"ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} dr2=%08VR{dr2} dr3=%08VR{dr3}\n"
1398	"es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} dr6=%08VR{dr6} dr7=%08VR{dr7}\n"
1399	"fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr0=%08VR{cr0} cr2=%08VR{cr2}\n"
1400	"gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr3=%08VR{cr3} cr4=%08VR{cr4}\n"
1401	"ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}} cr8=%08VR{cr8}\n"
1402	"gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} idtr=%08VR{idtr_base}:%04VR{idtr_lim} eflags=%08VR{eflags}\n"
1403	"ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1404	"tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1405	"sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1406	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1407	);
1408	}
1409	if (RT_FAILURE(rc))
1410	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1411	char *pszRegs = strchr(szDisAndRegs, '\n');
1412	*pszRegs++ = '\0';
1413	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1414
1415	/*
1416	* Disassemble one instruction at cs:[r\|e]ip.
1417	*/
1418	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1419	}
1420	return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, "");
1421	}
1422
1423
1424	/**
1425	* @interface_method_impl{FNDBCCMD, The 'rh' command.}
1426	*/
1427	static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1428	{
1429	/*
1430	* Show all registers our selves.
1431	*/
1432	if (cArgs == 0)
1433	{
1434	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1435	char szDisAndRegs[8192];
1436	int rc;
1437
1438	if (pDbgc->fRegTerse)
1439	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1440	"u %VR{cs}:%VR{eip} L 0\n"
1441	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1442	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1443	".cs=%04VR{cs} .ds=%04VR{ds} .es=%04VR{es} .fs=%04VR{fs} .gs=%04VR{gs} .ss=%04VR{ss} .eflags=%08VR{eflags}\n");
1444	else
1445	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1446	"u %04VR{cs}:%08VR{eip} L 0\n"
1447	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1448	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1449	".cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} .dr0=%08VR{dr0} .dr1=%08VR{dr1}\n"
1450	".ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} .dr2=%08VR{dr2} .dr3=%08VR{dr3}\n"
1451	".es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} .dr6=%08VR{dr6} .dr6=%08VR{dr6}\n"
1452	".fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} .cr3=%016VR{cr3}\n"
1453	".gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}}\n"
1454	".ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1455	".gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} .idtr=%08VR{idtr_base}:%04VR{idtr_lim} .eflags=%08VR{eflags}\n"
1456	".ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1457	".tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1458	);
1459	if (RT_FAILURE(rc))
1460	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1461	char *pszRegs = strchr(szDisAndRegs, '\n');
1462	*pszRegs++ = '\0';
1463	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1464
1465	/*
1466	* Disassemble one instruction at cs:[r\|e]ip.
1467	*/
1468	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1469	}
1470	return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, ".");
1471	}
1472
1473
1474	/**
1475	* @interface_method_impl{FNDBCCMD, The 'rt' command.}
1476	*/
1477	static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1478	{
1479	NOREF(pCmd); NOREF(pUVM); NOREF(paArgs); NOREF(cArgs);
1480
1481	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1482	pDbgc->fRegTerse = !pDbgc->fRegTerse;
1483	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, pDbgc->fRegTerse ? "info: Terse register info.\n" : "info: Verbose register info.\n");
1484	}
1485
1486
1487	/**
1488	* @interface_method_impl{FNDBCCMD, The 't' command.}
1489	*/
1490	static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1491	{
1492	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1493
1494	int rc = DBGFR3Step(pUVM, pDbgc->idCpu);
1495	if (RT_SUCCESS(rc))
1496	pDbgc->fReady = false;
1497	else
1498	rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to single step VM %p\n", pDbgc->pVM);
1499
1500	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
1501	return rc;
1502	}
1503
1504
1505	/**
1506	* @interface_method_impl{FNDBCCMD, The 'k', 'kg' and 'kh' commands.}
1507	*/
1508	static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1509	{
1510	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1511
1512	/*
1513	* Figure which context we're called for and start walking that stack.
1514	*/
1515	int rc;
1516	PCDBGFSTACKFRAME pFirstFrame;
1517	bool const fGuest = pCmd->pszCmd[1] == 'g'
1518	\|\| (!pCmd->pszCmd[1] && pDbgc->fRegCtxGuest);
1519	rc = DBGFR3StackWalkBegin(pUVM, pDbgc->idCpu, fGuest ? DBGFCODETYPE_GUEST : DBGFCODETYPE_HYPER, &pFirstFrame);
1520	if (RT_FAILURE(rc))
1521	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Failed to begin stack walk, rc=%Rrc\n", rc);
1522
1523	/*
1524	* Print header.
1525	* 12345678 12345678 0023:87654321 12345678 87654321 12345678 87654321 symbol
1526	*/
1527	uint32_t fBitFlags = 0;
1528	for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
1529	pFrame;
1530	pFrame = DBGFR3StackWalkNext(pFrame))
1531	{
1532	uint32_t const fCurBitFlags = pFrame->fFlags & (DBGFSTACKFRAME_FLAGS_16BIT \| DBGFSTACKFRAME_FLAGS_32BIT \| DBGFSTACKFRAME_FLAGS_64BIT);
1533	if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_16BIT)
1534	{
1535	if (fCurBitFlags != fBitFlags)
1536	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "SS:BP Ret SS:BP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1537	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04RX16:%04RX16 %04RX16:%04RX16 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1538	pFrame->AddrFrame.Sel,
1539	(uint16_t)pFrame->AddrFrame.off,
1540	pFrame->AddrReturnFrame.Sel,
1541	(uint16_t)pFrame->AddrReturnFrame.off,
1542	(uint32_t)pFrame->AddrReturnPC.Sel,
1543	(uint32_t)pFrame->AddrReturnPC.off,
1544	pFrame->Args.au32[0],
1545	pFrame->Args.au32[1],
1546	pFrame->Args.au32[2],
1547	pFrame->Args.au32[3]);
1548	}
1549	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT)
1550	{
1551	if (fCurBitFlags != fBitFlags)
1552	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1553	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1554	(uint32_t)pFrame->AddrFrame.off,
1555	(uint32_t)pFrame->AddrReturnFrame.off,
1556	(uint32_t)pFrame->AddrReturnPC.Sel,
1557	(uint32_t)pFrame->AddrReturnPC.off,
1558	pFrame->Args.au32[0],
1559	pFrame->Args.au32[1],
1560	pFrame->Args.au32[2],
1561	pFrame->Args.au32[3]);
1562	}
1563	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT)
1564	{
1565	if (fCurBitFlags != fBitFlags)
1566	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "RBP Ret SS:RBP Ret RIP CS:RIP / Symbol [line]\n");
1567	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%016RX64 %04RX16:%016RX64 %016RX64",
1568	(uint64_t)pFrame->AddrFrame.off,
1569	pFrame->AddrReturnFrame.Sel,
1570	(uint64_t)pFrame->AddrReturnFrame.off,
1571	(uint64_t)pFrame->AddrReturnPC.off);
1572	}
1573	if (RT_FAILURE(rc))
1574	break;
1575	if (!pFrame->pSymPC)
1576	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1577	fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1578	? " %RTsel:%016RGv"
1579	: fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT
1580	? " %RTsel:%08RGv"
1581	: " %RTsel:%04RGv"
1582	, pFrame->AddrPC.Sel, pFrame->AddrPC.off);
1583	else
1584	{
1585	RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value; /** @todo this isn't 100% correct for segmented stuff. */
1586	if (offDisp > 0)
1587	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
1588	else if (offDisp < 0)
1589	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
1590	else
1591	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s", pFrame->pSymPC->szName);
1592	}
1593	if (RT_SUCCESS(rc) && pFrame->pLinePC)
1594	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
1595	if (RT_SUCCESS(rc))
1596	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
1597	if (RT_FAILURE(rc))
1598	break;
1599
1600	fBitFlags = fCurBitFlags;
1601	}
1602
1603	DBGFR3StackWalkEnd(pFirstFrame);
1604
1605	NOREF(paArgs); NOREF(cArgs);
1606	return rc;
1607	}
1608
1609
1610	static int dbgcCmdDumpDTWorker64(PDBGCCMDHLP pCmdHlp, PCX86DESC64 pDesc, unsigned iEntry, bool fHyper, bool *pfDblEntry)
1611	{
1612	/* GUEST64 */
1613	int rc;
1614
1615	const char *pszHyper = fHyper ? " HYPER" : "";
1616	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1617	if (pDesc->Gen.u1DescType)
1618	{
1619	static const char * const s_apszTypes[] =
1620	{
1621	"DataRO", /* 0 Read-Only */
1622	"DataRO", /* 1 Read-Only - Accessed */
1623	"DataRW", /* 2 Read/Write */
1624	"DataRW", /* 3 Read/Write - Accessed */
1625	"DownRO", /* 4 Expand-down, Read-Only */
1626	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1627	"DownRW", /* 6 Expand-down, Read/Write */
1628	"DownRW", /* 7 Expand-down, Read/Write - Accessed */
1629	"CodeEO", /* 8 Execute-Only */
1630	"CodeEO", /* 9 Execute-Only - Accessed */
1631	"CodeER", /* A Execute/Readable */
1632	"CodeER", /* B Execute/Readable - Accessed */
1633	"ConfE0", /* C Conforming, Execute-Only */
1634	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1635	"ConfER", /* E Conforming, Execute/Readable */
1636	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1637	};
1638	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1639	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1640	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1641	uint32_t u32Base = X86DESC_BASE(pDesc);
1642	uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1643
1644	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1645	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1646	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1647	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1648	}
1649	else
1650	{
1651	static const char * const s_apszTypes[] =
1652	{
1653	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1654	"Ill-1 ", /* 1 0001 Available 16-bit TSS */
1655	"LDT ", /* 2 0010 LDT */
1656	"Ill-3 ", /* 3 0011 Busy 16-bit TSS */
1657	"Ill-4 ", /* 4 0100 16-bit Call Gate */
1658	"Ill-5 ", /* 5 0101 Task Gate */
1659	"Ill-6 ", /* 6 0110 16-bit Interrupt Gate */
1660	"Ill-7 ", /* 7 0111 16-bit Trap Gate */
1661	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1662	"Tss64A", /* 9 1001 Available 32-bit TSS */
1663	"Ill-A ", /* A 1010 Reserved (Illegal) */
1664	"Tss64B", /* B 1011 Busy 32-bit TSS */
1665	"Call64", /* C 1100 32-bit Call Gate */
1666	"Ill-D ", /* D 1101 Reserved (Illegal) */
1667	"Int64 ", /* E 1110 32-bit Interrupt Gate */
1668	"Trap64" /* F 1111 32-bit Trap Gate */
1669	};
1670	switch (pDesc->Gen.u4Type)
1671	{
1672	/* raw */
1673	case X86_SEL_TYPE_SYS_UNDEFINED:
1674	case X86_SEL_TYPE_SYS_UNDEFINED2:
1675	case X86_SEL_TYPE_SYS_UNDEFINED4:
1676	case X86_SEL_TYPE_SYS_UNDEFINED3:
1677	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1678	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1679	case X86_SEL_TYPE_SYS_286_CALL_GATE:
1680	case X86_SEL_TYPE_SYS_286_INT_GATE:
1681	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1682	case X86_SEL_TYPE_SYS_TASK_GATE:
1683	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1684	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1685	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1686	break;
1687
1688	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1689	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1690	case X86_SEL_TYPE_SYS_LDT:
1691	{
1692	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1693	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1694	const char *pszLong = pDesc->Gen.u1Long ? "LONG" : " ";
1695
1696	uint64_t u32Base = X86DESC64_BASE(pDesc);
1697	uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1698
1699	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%016RX64 Lim=%08x DPL=%d %s %s %s %sAVL=%d R=%d%s\n",
1700	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1701	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszLong, pszBig,
1702	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1703	pszHyper);
1704	if (pfDblEntry)
1705	*pfDblEntry = true;
1706	break;
1707	}
1708
1709	case X86_SEL_TYPE_SYS_386_CALL_GATE:
1710	{
1711	unsigned cParams = pDesc->au8[4] & 0x1f;
1712	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1713	RTSEL sel = pDesc->au16[1];
1714	uint64_t off = pDesc->au16[0]
1715	\| ((uint64_t)pDesc->au16[3] << 16)
1716	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1717	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s %s=%d%s\n",
1718	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1719	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1720	if (pfDblEntry)
1721	*pfDblEntry = true;
1722	break;
1723	}
1724
1725	case X86_SEL_TYPE_SYS_386_INT_GATE:
1726	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1727	{
1728	RTSEL sel = pDesc->au16[1];
1729	uint64_t off = pDesc->au16[0]
1730	\| ((uint64_t)pDesc->au16[3] << 16)
1731	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1732	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s%s\n",
1733	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1734	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1735	if (pfDblEntry)
1736	*pfDblEntry = true;
1737	break;
1738	}
1739
1740	/* impossible, just it's necessary to keep gcc happy. */
1741	default:
1742	return VINF_SUCCESS;
1743	}
1744	}
1745	return VINF_SUCCESS;
1746	}
1747
1748
1749	/**
1750	* Worker function that displays one descriptor entry (GDT, LDT, IDT).
1751	*
1752	* @returns pfnPrintf status code.
1753	* @param pCmdHlp The DBGC command helpers.
1754	* @param pDesc The descriptor to display.
1755	* @param iEntry The descriptor entry number.
1756	* @param fHyper Whether the selector belongs to the hypervisor or not.
1757	*/
1758	static int dbgcCmdDumpDTWorker32(PDBGCCMDHLP pCmdHlp, PCX86DESC pDesc, unsigned iEntry, bool fHyper)
1759	{
1760	int rc;
1761
1762	const char *pszHyper = fHyper ? " HYPER" : "";
1763	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1764	if (pDesc->Gen.u1DescType)
1765	{
1766	static const char * const s_apszTypes[] =
1767	{
1768	"DataRO", /* 0 Read-Only */
1769	"DataRO", /* 1 Read-Only - Accessed */
1770	"DataRW", /* 2 Read/Write */
1771	"DataRW", /* 3 Read/Write - Accessed */
1772	"DownRO", /* 4 Expand-down, Read-Only */
1773	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1774	"DownRW", /* 6 Expand-down, Read/Write */
1775	"DownRW", /* 7 Expand-down, Read/Write - Accessed */
1776	"CodeEO", /* 8 Execute-Only */
1777	"CodeEO", /* 9 Execute-Only - Accessed */
1778	"CodeER", /* A Execute/Readable */
1779	"CodeER", /* B Execute/Readable - Accessed */
1780	"ConfE0", /* C Conforming, Execute-Only */
1781	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1782	"ConfER", /* E Conforming, Execute/Readable */
1783	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1784	};
1785	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1786	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1787	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1788	uint32_t u32Base = pDesc->Gen.u16BaseLow
1789	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1790	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1791	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1792	if (pDesc->Gen.u1Granularity)
1793	cbLimit <<= PAGE_SHIFT;
1794
1795	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1796	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1797	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1798	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1799	}
1800	else
1801	{
1802	static const char * const s_apszTypes[] =
1803	{
1804	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1805	"Tss16A", /* 1 0001 Available 16-bit TSS */
1806	"LDT ", /* 2 0010 LDT */
1807	"Tss16B", /* 3 0011 Busy 16-bit TSS */
1808	"Call16", /* 4 0100 16-bit Call Gate */
1809	"TaskG ", /* 5 0101 Task Gate */
1810	"Int16 ", /* 6 0110 16-bit Interrupt Gate */
1811	"Trap16", /* 7 0111 16-bit Trap Gate */
1812	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1813	"Tss32A", /* 9 1001 Available 32-bit TSS */
1814	"Ill-A ", /* A 1010 Reserved (Illegal) */
1815	"Tss32B", /* B 1011 Busy 32-bit TSS */
1816	"Call32", /* C 1100 32-bit Call Gate */
1817	"Ill-D ", /* D 1101 Reserved (Illegal) */
1818	"Int32 ", /* E 1110 32-bit Interrupt Gate */
1819	"Trap32" /* F 1111 32-bit Trap Gate */
1820	};
1821	switch (pDesc->Gen.u4Type)
1822	{
1823	/* raw */
1824	case X86_SEL_TYPE_SYS_UNDEFINED:
1825	case X86_SEL_TYPE_SYS_UNDEFINED2:
1826	case X86_SEL_TYPE_SYS_UNDEFINED4:
1827	case X86_SEL_TYPE_SYS_UNDEFINED3:
1828	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1829	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1830	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1831	break;
1832
1833	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1834	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1835	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1836	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1837	case X86_SEL_TYPE_SYS_LDT:
1838	{
1839	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1840	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1841	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1842	uint32_t u32Base = pDesc->Gen.u16BaseLow
1843	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1844	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1845	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1846	if (pDesc->Gen.u1Granularity)
1847	cbLimit <<= PAGE_SHIFT;
1848
1849	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
1850	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1851	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszGranularity, pszBig,
1852	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1853	pszHyper);
1854	break;
1855	}
1856
1857	case X86_SEL_TYPE_SYS_TASK_GATE:
1858	{
1859	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s TSS=%04x DPL=%d %s%s\n",
1860	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc->au16[1],
1861	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1862	break;
1863	}
1864
1865	case X86_SEL_TYPE_SYS_286_CALL_GATE:
1866	case X86_SEL_TYPE_SYS_386_CALL_GATE:
1867	{
1868	unsigned cParams = pDesc->au8[4] & 0x1f;
1869	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1870	RTSEL sel = pDesc->au16[1];
1871	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
1872	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s %s=%d%s\n",
1873	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1874	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1875	break;
1876	}
1877
1878	case X86_SEL_TYPE_SYS_286_INT_GATE:
1879	case X86_SEL_TYPE_SYS_386_INT_GATE:
1880	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1881	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1882	{
1883	RTSEL sel = pDesc->au16[1];
1884	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
1885	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s%s\n",
1886	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1887	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1888	break;
1889	}
1890
1891	/* impossible, just it's necessary to keep gcc happy. */
1892	default:
1893	return VINF_SUCCESS;
1894	}
1895	}
1896	return rc;
1897	}
1898
1899
1900	/**
1901	* @interface_method_impl{FNDBCCMD, The 'dg', 'dga', 'dl' and 'dla' commands.}
1902	*/
1903	static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1904	{
1905	/*
1906	* Validate input.
1907	*/
1908	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
1909
1910	/*
1911	* Get the CPU mode, check which command variation this is
1912	* and fix a default parameter if needed.
1913	*/
1914	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1915	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
1916	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
1917	bool fGdt = pCmd->pszCmd[1] == 'g';
1918	bool fAll = pCmd->pszCmd[2] == 'a';
1919	RTSEL SelTable = fGdt ? 0 : X86_SEL_LDT;
1920
1921	DBGCVAR Var;
1922	if (!cArgs)
1923	{
1924	cArgs = 1;
1925	paArgs = &Var;
1926	Var.enmType = DBGCVAR_TYPE_NUMBER;
1927	Var.u.u64Number = 0;
1928	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1929	Var.u64Range = 1024;
1930	}
1931
1932	/*
1933	* Process the arguments.
1934	*/
1935	for (unsigned i = 0; i < cArgs; i++)
1936	{
1937	/*
1938	* Retrieve the selector value from the argument.
1939	* The parser may confuse pointers and numbers if more than one
1940	* argument is given, that that into account.
1941	*/
1942	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[i].enmType));
1943	uint64_t u64;
1944	unsigned cSels = 1;
1945	switch (paArgs[i].enmType)
1946	{
1947	case DBGCVAR_TYPE_NUMBER:
1948	u64 = paArgs[i].u.u64Number;
1949	if (paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE)
1950	cSels = RT_MIN(paArgs[i].u64Range, 1024);
1951	break;
1952	case DBGCVAR_TYPE_GC_FAR: u64 = paArgs[i].u.GCFar.sel; break;
1953	case DBGCVAR_TYPE_GC_FLAT: u64 = paArgs[i].u.GCFlat; break;
1954	case DBGCVAR_TYPE_GC_PHYS: u64 = paArgs[i].u.GCPhys; break;
1955	case DBGCVAR_TYPE_HC_FLAT: u64 = (uintptr_t)paArgs[i].u.pvHCFlat; break;
1956	case DBGCVAR_TYPE_HC_PHYS: u64 = paArgs[i].u.HCPhys; break;
1957	default: u64 = _64K; break;
1958	}
1959	if (u64 < _64K)
1960	{
1961	unsigned Sel = (RTSEL)u64;
1962
1963	/*
1964	* Dump the specified range.
1965	*/
1966	bool fSingle = cSels == 1;
1967	while ( cSels-- > 0
1968	&& Sel < _64K)
1969	{
1970	DBGFSELINFO SelInfo;
1971	int rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, Sel \| SelTable, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
1972	if (RT_SUCCESS(rc))
1973	{
1974	if (SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE)
1975	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x RealM Bas=%04x Lim=%04x\n",
1976	Sel, (unsigned)SelInfo.GCPtrBase, (unsigned)SelInfo.cbLimit);
1977	else if ( fAll
1978	\|\| fSingle
1979	\|\| SelInfo.u.Raw.Gen.u1Present)
1980	{
1981	if (enmMode == CPUMMODE_PROTECTED)
1982	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &SelInfo.u.Raw, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER));
1983	else
1984	{
1985	bool fDblSkip = false;
1986	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &SelInfo.u.Raw64, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER), &fDblSkip);
1987	if (fDblSkip)
1988	Sel += 4;
1989	}
1990	}
1991	}
1992	else
1993	{
1994	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %Rrc\n", Sel, rc);
1995	if (!fAll)
1996	return rc;
1997	}
1998	if (RT_FAILURE(rc))
1999	return rc;
2000
2001	/* next */
2002	Sel += 8;
2003	}
2004	}
2005	else
2006	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds\n", u64);
2007	}
2008
2009	return VINF_SUCCESS;
2010	}
2011
2012
2013	/**
2014	* @interface_method_impl{FNDBCCMD, The 'di' and 'dia' commands.}
2015	*/
2016	static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2017	{
2018	/*
2019	* Validate input.
2020	*/
2021	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2022
2023	/*
2024	* Establish some stuff like the current IDTR and CPU mode,
2025	* and fix a default parameter.
2026	*/
2027	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2028	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
2029	uint16_t cbLimit;
2030	RTGCUINTPTR GCPtrBase = CPUMGetGuestIDTR(pVCpu, &cbLimit);
2031	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2032	unsigned cbEntry;
2033	switch (enmMode)
2034	{
2035	case CPUMMODE_REAL: cbEntry = sizeof(RTFAR16); break;
2036	case CPUMMODE_PROTECTED: cbEntry = sizeof(X86DESC); break;
2037	case CPUMMODE_LONG: cbEntry = sizeof(X86DESC64); break;
2038	default:
2039	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid CPU mode %d.\n", enmMode);
2040	}
2041
2042	bool fAll = pCmd->pszCmd[2] == 'a';
2043	DBGCVAR Var;
2044	if (!cArgs)
2045	{
2046	cArgs = 1;
2047	paArgs = &Var;
2048	Var.enmType = DBGCVAR_TYPE_NUMBER;
2049	Var.u.u64Number = 0;
2050	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2051	Var.u64Range = 256;
2052	}
2053
2054	/*
2055	* Process the arguments.
2056	*/
2057	for (unsigned i = 0; i < cArgs; i++)
2058	{
2059	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER);
2060	if (paArgs[i].u.u64Number < 256)
2061	{
2062	RTGCUINTPTR iInt = (RTGCUINTPTR)paArgs[i].u.u64Number;
2063	unsigned cInts = paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE
2064	? paArgs[i].u64Range
2065	: 1;
2066	bool fSingle = cInts == 1;
2067	while ( cInts-- > 0
2068	&& iInt < 256)
2069	{
2070	/*
2071	* Try read it.
2072	*/
2073	union
2074	{
2075	RTFAR16 Real;
2076	X86DESC Prot;
2077	X86DESC64 Long;
2078	} u;
2079	if (iInt * cbEntry + (cbEntry - 1) > cbLimit)
2080	{
2081	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x not within the IDT\n", (unsigned)iInt);
2082	if (!fAll && !fSingle)
2083	return VINF_SUCCESS;
2084	}
2085	DBGCVAR AddrVar;
2086	AddrVar.enmType = DBGCVAR_TYPE_GC_FLAT;
2087	AddrVar.u.GCFlat = GCPtrBase + iInt * cbEntry;
2088	AddrVar.enmRangeType = DBGCVAR_RANGE_NONE;
2089	int rc = pCmdHlp->pfnMemRead(pCmdHlp, &u, cbEntry, &AddrVar, NULL);
2090	if (RT_FAILURE(rc))
2091	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading IDT entry %#04x.\n", (unsigned)iInt);
2092
2093	/*
2094	* Display it.
2095	*/
2096	switch (enmMode)
2097	{
2098	case CPUMMODE_REAL:
2099	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %RTfp16\n", (unsigned)iInt, u.Real);
2100	/** @todo resolve 16:16 IDTE to a symbol */
2101	break;
2102	case CPUMMODE_PROTECTED:
2103	if (fAll \|\| fSingle \|\| u.Prot.Gen.u1Present)
2104	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &u.Prot, iInt, false);
2105	break;
2106	case CPUMMODE_LONG:
2107	if (fAll \|\| fSingle \|\| u.Long.Gen.u1Present)
2108	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &u.Long, iInt, false, NULL);
2109	break;
2110	default: break; /* to shut up gcc */
2111	}
2112	if (RT_FAILURE(rc))
2113	return rc;
2114
2115	/* next */
2116	iInt++;
2117	}
2118	}
2119	else
2120	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds (max 256)\n", paArgs[i].u.u64Number);
2121	}
2122
2123	return VINF_SUCCESS;
2124	}
2125
2126
2127	/**
2128	* @interface_method_impl{FNDBCCMD, The 'da', 'dq', 'dd', 'dw' and 'db'
2129	* commands.}
2130	*/
2131	static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2132	{
2133	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2134
2135	/*
2136	* Validate input.
2137	*/
2138	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2139	if (cArgs == 1)
2140	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2141	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2142
2143	/*
2144	* Figure out the element size.
2145	*/
2146	unsigned cbElement;
2147	bool fAscii = false;
2148	switch (pCmd->pszCmd[1])
2149	{
2150	default:
2151	case 'b': cbElement = 1; break;
2152	case 'w': cbElement = 2; break;
2153	case 'd': cbElement = 4; break;
2154	case 'q': cbElement = 8; break;
2155	case 'a':
2156	cbElement = 1;
2157	fAscii = true;
2158	break;
2159	case '\0':
2160	fAscii = !!(pDbgc->cbDumpElement & 0x80000000);
2161	cbElement = pDbgc->cbDumpElement & 0x7fffffff;
2162	if (!cbElement)
2163	cbElement = 1;
2164	break;
2165	}
2166
2167	/*
2168	* Find address.
2169	*/
2170	if (!cArgs)
2171	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_NONE;
2172	else
2173	pDbgc->DumpPos = paArgs[0];
2174
2175	/*
2176	* Range.
2177	*/
2178	switch (pDbgc->DumpPos.enmRangeType)
2179	{
2180	case DBGCVAR_RANGE_NONE:
2181	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2182	pDbgc->DumpPos.u64Range = 0x60;
2183	break;
2184
2185	case DBGCVAR_RANGE_ELEMENTS:
2186	if (pDbgc->DumpPos.u64Range > 2048)
2187	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many elements requested. Max is 2048 elements.\n");
2188	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2189	pDbgc->DumpPos.u64Range = (cbElement ? cbElement : 1) * pDbgc->DumpPos.u64Range;
2190	break;
2191
2192	case DBGCVAR_RANGE_BYTES:
2193	if (pDbgc->DumpPos.u64Range > 65536)
2194	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
2195	break;
2196
2197	default:
2198	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->DumpPos.enmRangeType);
2199	}
2200
2201	pDbgc->pLastPos = &pDbgc->DumpPos;
2202
2203	/*
2204	* Do the dumping.
2205	*/
2206	pDbgc->cbDumpElement = cbElement \| (fAscii << 31);
2207	int cbLeft = (int)pDbgc->DumpPos.u64Range;
2208	uint8_t u8Prev = '\0';
2209	for (;;)
2210	{
2211	/*
2212	* Read memory.
2213	*/
2214	char achBuffer[16];
2215	size_t cbReq = RT_MIN((int)sizeof(achBuffer), cbLeft);
2216	size_t cb = RT_MIN((int)sizeof(achBuffer), cbLeft);
2217	int rc = pCmdHlp->pfnMemRead(pCmdHlp, &achBuffer, cbReq, &pDbgc->DumpPos, &cb);
2218	if (RT_FAILURE(rc))
2219	{
2220	if (u8Prev && u8Prev != '\n')
2221	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2222	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading memory at %DV.\n", &pDbgc->DumpPos);
2223	}
2224
2225	/*
2226	* Display it.
2227	*/
2228	memset(&achBuffer[cb], 0, sizeof(achBuffer) - cb);
2229	if (!fAscii)
2230	{
2231	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:", &pDbgc->DumpPos);
2232	unsigned i;
2233	for (i = 0; i < cb; i += cbElement)
2234	{
2235	const char *pszSpace = " ";
2236	if (cbElement <= 2 && i == 8 && !fAscii)
2237	pszSpace = "-";
2238	switch (cbElement)
2239	{
2240	case 1: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%02x", pszSpace, (uint8_t )&achBuffer[i]); break;
2241	case 2: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%04x", pszSpace, (uint16_t )&achBuffer[i]); break;
2242	case 4: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%08x", pszSpace, (uint32_t )&achBuffer[i]); break;
2243	case 8: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%016llx", pszSpace, (uint64_t )&achBuffer[i]); break;
2244	}
2245	}
2246
2247	/* chars column */
2248	if (pDbgc->cbDumpElement == 1)
2249	{
2250	while (i++ < sizeof(achBuffer))
2251	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2252	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2253	for (i = 0; i < cb; i += cbElement)
2254	{
2255	uint8_t u8 = (uint8_t )&achBuffer[i];
2256	if (RT_C_IS_PRINT(u8) && u8 < 127 && u8 >= 32)
2257	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2258	else
2259	pCmdHlp->pfnPrintf(pCmdHlp, NULL, ".");
2260	}
2261	}
2262	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2263	}
2264	else
2265	{
2266	/*
2267	* We print up to the first zero and stop there.
2268	* Only printables + '\t' and '\n' are printed.
2269	*/
2270	if (!u8Prev)
2271	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DumpPos);
2272	uint8_t u8 = '\0';
2273	unsigned i;
2274	for (i = 0; i < cb; i++)
2275	{
2276	u8Prev = u8;
2277	u8 = (uint8_t )&achBuffer[i];
2278	if ( u8 < 127
2279	&& ( (RT_C_IS_PRINT(u8) && u8 >= 32)
2280	\|\| u8 == '\t'
2281	\|\| u8 == '\n'))
2282	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2283	else if (!u8)
2284	break;
2285	else
2286	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\\x%x", u8);
2287	}
2288	if (u8 == '\0')
2289	cb = cbLeft = i + 1;
2290	if (cbLeft - cb <= 0 && u8Prev != '\n')
2291	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2292	}
2293
2294	/*
2295	* Advance
2296	*/
2297	cbLeft -= (int)cb;
2298	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DumpPos, "(%Dv) + %x", &pDbgc->DumpPos, cb);
2299	if (RT_FAILURE(rc))
2300	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DumpPos, cb);
2301	if (cbLeft <= 0)
2302	break;
2303	}
2304
2305	NOREF(pCmd);
2306	return VINF_SUCCESS;
2307	}
2308
2309
2310	/**
2311	* Best guess at which paging mode currently applies to the guest
2312	* paging structures.
2313	*
2314	* This have to come up with a decent answer even when the guest
2315	* is in non-paged protected mode or real mode.
2316	*
2317	* @returns cr3.
2318	* @param pDbgc The DBGC instance.
2319	* @param pfPAE Where to store the page address extension indicator.
2320	* @param pfLME Where to store the long mode enabled indicator.
2321	* @param pfPSE Where to store the page size extension indicator.
2322	* @param pfPGE Where to store the page global enabled indicator.
2323	* @param pfNXE Where to store the no-execution enabled indicator.
2324	*/
2325	static RTGCPHYS dbgcGetGuestPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2326	{
2327	PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2328	RTGCUINTREG cr4 = CPUMGetGuestCR4(pVCpu);
2329	*pfPSE = !!(cr4 & X86_CR4_PSE);
2330	*pfPGE = !!(cr4 & X86_CR4_PGE);
2331	if (cr4 & X86_CR4_PAE)
2332	{
2333	*pfPSE = true;
2334	*pfPAE = true;
2335	}
2336	else
2337	*pfPAE = false;
2338
2339	*pfLME = CPUMGetGuestMode(pVCpu) == CPUMMODE_LONG;
2340	pfNXE = false; / GUEST64 GUESTNX */
2341	return CPUMGetGuestCR3(pVCpu);
2342	}
2343
2344
2345	/**
2346	* Determine the shadow paging mode.
2347	*
2348	* @returns cr3.
2349	* @param pDbgc The DBGC instance.
2350	* @param pfPAE Where to store the page address extension indicator.
2351	* @param pfLME Where to store the long mode enabled indicator.
2352	* @param pfPSE Where to store the page size extension indicator.
2353	* @param pfPGE Where to store the page global enabled indicator.
2354	* @param pfNXE Where to store the no-execution enabled indicator.
2355	*/
2356	static RTHCPHYS dbgcGetShadowPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2357	{
2358	PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2359
2360	*pfPSE = true;
2361	*pfPGE = false;
2362	switch (PGMGetShadowMode(pVCpu))
2363	{
2364	default:
2365	case PGMMODE_32_BIT:
2366	pfPAE = pfLME = *pfNXE = false;
2367	break;
2368	case PGMMODE_PAE:
2369	pfLME = pfNXE = false;
2370	*pfPAE = true;
2371	break;
2372	case PGMMODE_PAE_NX:
2373	*pfLME = false;
2374	pfPAE = pfNXE = true;
2375	break;
2376	case PGMMODE_AMD64:
2377	*pfNXE = false;
2378	pfPAE = pfLME = true;
2379	break;
2380	case PGMMODE_AMD64_NX:
2381	pfPAE = pfLME = *pfNXE = true;
2382	break;
2383	}
2384	return PGMGetHyperCR3(pVCpu);
2385	}
2386
2387
2388	/**
2389	* @interface_method_impl{FNDBCCMD, The 'dpd', 'dpda', 'dpdb', 'dpdg' and 'dpdh'
2390	* commands.}
2391	*/
2392	static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2393	{
2394	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2395
2396	/*
2397	* Validate input.
2398	*/
2399	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2400	if (cArgs == 1 && pCmd->pszCmd[3] == 'a')
2401	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2402	if (cArgs == 1 && pCmd->pszCmd[3] != 'a')
2403	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2404	\|\| DBGCVAR_ISPOINTER(paArgs[0].enmType));
2405	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2406
2407	/*
2408	* Guest or shadow page directories? Get the paging parameters.
2409	*/
2410	bool fGuest = pCmd->pszCmd[3] != 'h';
2411	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2412	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2413	? pDbgc->fRegCtxGuest
2414	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2415
2416	bool fPAE, fLME, fPSE, fPGE, fNXE;
2417	uint64_t cr3 = fGuest
2418	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2419	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2420	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2421
2422	/*
2423	* Setup default argument if none was specified.
2424	* Fix address / index confusion.
2425	*/
2426	DBGCVAR VarDefault;
2427	if (!cArgs)
2428	{
2429	if (pCmd->pszCmd[3] == 'a')
2430	{
2431	if (fLME \|\| fPAE)
2432	return DBGCCmdHlpPrintf(pCmdHlp, "Default argument for 'dpda' hasn't been fully implemented yet. Try with an address or use one of the other commands.\n");
2433	if (fGuest)
2434	DBGCVAR_INIT_GC_PHYS(&VarDefault, cr3);
2435	else
2436	DBGCVAR_INIT_HC_PHYS(&VarDefault, cr3);
2437	}
2438	else
2439	DBGCVAR_INIT_GC_FLAT(&VarDefault, 0);
2440	paArgs = &VarDefault;
2441	cArgs = 1;
2442	}
2443	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
2444	{
2445	/* If it's a number (not an address), it's an index, so convert it to an address. */
2446	Assert(pCmd->pszCmd[3] != 'a');
2447	VarDefault = paArgs[0];
2448	if (fPAE)
2449	return DBGCCmdHlpPrintf(pCmdHlp, "PDE indexing is only implemented for 32-bit paging.\n");
2450	if (VarDefault.u.u64Number >= PAGE_SIZE / cbEntry)
2451	return DBGCCmdHlpPrintf(pCmdHlp, "PDE index is out of range [0..%d].\n", PAGE_SIZE / cbEntry - 1);
2452	VarDefault.u.u64Number <<= X86_PD_SHIFT;
2453	VarDefault.enmType = DBGCVAR_TYPE_GC_FLAT;
2454	paArgs = &VarDefault;
2455	}
2456
2457	/*
2458	* Locate the PDE to start displaying at.
2459	*
2460	* The 'dpda' command takes the address of a PDE, while the others are guest
2461	* virtual address which PDEs should be displayed. So, 'dpda' is rather simple
2462	* while the others require us to do all the tedious walking thru the paging
2463	* hierarchy to find the intended PDE.
2464	*/
2465	unsigned iEntry = ~0U; /* The page directory index. ~0U for 'dpta'. */
2466	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PDE (iEntry != ~0U). */
2467	DBGCVAR VarPDEAddr; /* The address of the current PDE. */
2468	unsigned cEntries; /* The number of entries to display. */
2469	unsigned cEntriesMax; /* The max number of entries to display. */
2470	int rc;
2471	if (pCmd->pszCmd[3] == 'a')
2472	{
2473	VarPDEAddr = paArgs[0];
2474	switch (VarPDEAddr.enmRangeType)
2475	{
2476	case DBGCVAR_RANGE_BYTES: cEntries = VarPDEAddr.u64Range / cbEntry; break;
2477	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPDEAddr.u64Range; break;
2478	default: cEntries = 10; break;
2479	}
2480	cEntriesMax = PAGE_SIZE / cbEntry;
2481	}
2482	else
2483	{
2484	/*
2485	* Determine the range.
2486	*/
2487	switch (paArgs[0].enmRangeType)
2488	{
2489	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2490	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2491	default: cEntries = 10; break;
2492	}
2493
2494	/*
2495	* Normalize the input address, it must be a flat GC address.
2496	*/
2497	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2498	if (RT_FAILURE(rc))
2499	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2500	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2501	{
2502	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2503	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2504	}
2505	if (fPAE)
2506	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_PAE_SHIFT) - 1);
2507	else
2508	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_SHIFT) - 1);
2509
2510	/*
2511	* Do the paging walk until we get to the page directory.
2512	*/
2513	DBGCVAR VarCur;
2514	if (fGuest)
2515	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2516	else
2517	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2518	if (fLME)
2519	{
2520	/* Page Map Level 4 Lookup. */
2521	/* Check if it's a valid address first? */
2522	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2523	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2524	X86PML4E Pml4e;
2525	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2526	if (RT_FAILURE(rc))
2527	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2528	if (!Pml4e.n.u1Present)
2529	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2530
2531	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2532	Assert(fPAE);
2533	}
2534	if (fPAE)
2535	{
2536	/* Page directory pointer table. */
2537	X86PDPE Pdpe;
2538	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2539	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2540	if (RT_FAILURE(rc))
2541	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2542	if (!Pdpe.n.u1Present)
2543	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2544
2545	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2546	VarPDEAddr = VarCur;
2547	VarPDEAddr.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2548	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDEPAE);
2549	}
2550	else
2551	{
2552	/* 32-bit legacy - CR3 == page directory. */
2553	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK;
2554	VarPDEAddr = VarCur;
2555	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDE);
2556	}
2557	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2558	}
2559
2560	/* adjust cEntries */
2561	cEntries = RT_MAX(1, cEntries);
2562	cEntries = RT_MIN(cEntries, cEntriesMax);
2563
2564	/*
2565	* The display loop.
2566	*/
2567	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (index %#x):\n" : "%DV:\n",
2568	&VarPDEAddr, iEntry);
2569	do
2570	{
2571	/*
2572	* Read.
2573	*/
2574	X86PDEPAE Pde;
2575	Pde.u = 0;
2576	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, cbEntry, &VarPDEAddr, NULL);
2577	if (RT_FAILURE(rc))
2578	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarPDEAddr);
2579
2580	/*
2581	* Display.
2582	*/
2583	if (iEntry != ~0U)
2584	{
2585	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2586	iEntry++;
2587	}
2588	if (fPSE && Pde.b.u1Size)
2589	DBGCCmdHlpPrintf(pCmdHlp,
2590	fPAE
2591	? "%016llx big phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2592	: "%08llx big phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2593	Pde.u,
2594	Pde.u & X86_PDE_PAE_PG_MASK,
2595	Pde.b.u1Present ? "p " : "np",
2596	Pde.b.u1Write ? "w" : "r",
2597	Pde.b.u1User ? "u" : "s",
2598	Pde.b.u1Accessed ? "a " : "na",
2599	Pde.b.u1Dirty ? "d " : "nd",
2600	Pde.b.u3Available,
2601	Pde.b.u1Global ? (fPGE ? "g" : "G") : " ",
2602	Pde.b.u1WriteThru ? "pwt" : " ",
2603	Pde.b.u1CacheDisable ? "pcd" : " ",
2604	Pde.b.u1PAT ? "pat" : "",
2605	Pde.b.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2606	else
2607	DBGCCmdHlpPrintf(pCmdHlp,
2608	fPAE
2609	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s"
2610	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s",
2611	Pde.u,
2612	Pde.u & X86_PDE_PAE_PG_MASK,
2613	Pde.n.u1Present ? "p " : "np",
2614	Pde.n.u1Write ? "w" : "r",
2615	Pde.n.u1User ? "u" : "s",
2616	Pde.n.u1Accessed ? "a " : "na",
2617	Pde.u & RT_BIT(6) ? "6 " : " ",
2618	Pde.n.u3Available,
2619	Pde.u & RT_BIT(8) ? "8" : " ",
2620	Pde.n.u1WriteThru ? "pwt" : " ",
2621	Pde.n.u1CacheDisable ? "pcd" : " ",
2622	Pde.u & RT_BIT(7) ? "7" : "",
2623	Pde.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2624	if (Pde.u & UINT64_C(0x7fff000000000000))
2625	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pde.u & UINT64_C(0x7fff000000000000)));
2626	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2627	if (RT_FAILURE(rc))
2628	return rc;
2629
2630	/*
2631	* Advance.
2632	*/
2633	VarPDEAddr.u.u64Number += cbEntry;
2634	if (iEntry != ~0U)
2635	VarGCPtr.u.GCFlat += fPAE ? RT_BIT_32(X86_PD_PAE_SHIFT) : RT_BIT_32(X86_PD_SHIFT);
2636	} while (cEntries-- > 0);
2637
2638	return VINF_SUCCESS;
2639	}
2640
2641
2642	/**
2643	* @interface_method_impl{FNDBCCMD, The 'dpdb' command.}
2644	*/
2645	static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2646	{
2647	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2648	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2649	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2650	if (RT_FAILURE(rc1))
2651	return rc1;
2652	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
2653	return rc2;
2654	}
2655
2656
2657	/**
2658	* @interface_method_impl{FNDBCCMD, The 'dph*' commands and main part of 'm'.}
2659	*/
2660	static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2661	{
2662	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2663	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2664
2665	/*
2666	* Figure the context and base flags.
2667	*/
2668	uint32_t fFlags = DBGFPGDMP_FLAGS_PAGE_INFO \| DBGFPGDMP_FLAGS_PRINT_CR3;
2669	if (pCmd->pszCmd[0] == 'm')
2670	fFlags \|= DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW;
2671	else if (pCmd->pszCmd[3] == '\0')
2672	fFlags \|= pDbgc->fRegCtxGuest ? DBGFPGDMP_FLAGS_GUEST : DBGFPGDMP_FLAGS_SHADOW;
2673	else if (pCmd->pszCmd[3] == 'g')
2674	fFlags \|= DBGFPGDMP_FLAGS_GUEST;
2675	else if (pCmd->pszCmd[3] == 'h')
2676	fFlags \|= DBGFPGDMP_FLAGS_SHADOW;
2677	else
2678	AssertFailed();
2679
2680	if (pDbgc->cPagingHierarchyDumps == 0)
2681	fFlags \|= DBGFPGDMP_FLAGS_HEADER;
2682	pDbgc->cPagingHierarchyDumps = (pDbgc->cPagingHierarchyDumps + 1) % 42;
2683
2684	/*
2685	* Get the range.
2686	*/
2687	PCDBGCVAR pRange = cArgs > 0 ? &paArgs[0] : pDbgc->pLastPos;
2688	RTGCPTR GCPtrFirst = NIL_RTGCPTR;
2689	int rc = DBGCCmdHlpVarToFlatAddr(pCmdHlp, pRange, &GCPtrFirst);
2690	if (RT_FAILURE(rc))
2691	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to convert %DV to a flat address: %Rrc", pRange, rc);
2692
2693	uint64_t cbRange;
2694	rc = DBGCCmdHlpVarGetRange(pCmdHlp, pRange, PAGE_SIZE, PAGE_SIZE * 8, &cbRange);
2695	if (RT_FAILURE(rc))
2696	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to obtain the range of %DV: %Rrc", pRange, rc);
2697
2698	RTGCPTR GCPtrLast = RTGCPTR_MAX - GCPtrFirst;
2699	if (cbRange >= GCPtrLast)
2700	GCPtrLast = RTGCPTR_MAX;
2701	else if (!cbRange)
2702	GCPtrLast = GCPtrFirst;
2703	else
2704	GCPtrLast = GCPtrFirst + cbRange - 1;
2705
2706	/*
2707	* Do we have a CR3?
2708	*/
2709	uint64_t cr3 = 0;
2710	if (cArgs > 1)
2711	{
2712	if ((fFlags & (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW)) == (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW))
2713	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No CR3 or mode arguments when dumping both context, please.");
2714	if (paArgs[1].enmType != DBGCVAR_TYPE_NUMBER)
2715	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The CR3 argument is not a number: %DV", &paArgs[1]);
2716	cr3 = paArgs[1].u.u64Number;
2717	}
2718	else
2719	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_CR3;
2720
2721	/*
2722	* Do we have a mode?
2723	*/
2724	if (cArgs > 2)
2725	{
2726	if (paArgs[2].enmType != DBGCVAR_TYPE_STRING)
2727	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The mode argument is not a string: %DV", &paArgs[2]);
2728	static const struct MODETOFLAGS
2729	{
2730	const char *pszName;
2731	uint32_t fFlags;
2732	} s_aModeToFlags[] =
2733	{
2734	{ "ept", DBGFPGDMP_FLAGS_EPT },
2735	{ "legacy", 0 },
2736	{ "legacy-np", DBGFPGDMP_FLAGS_NP },
2737	{ "pse", DBGFPGDMP_FLAGS_PSE },
2738	{ "pse-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_NP },
2739	{ "pae", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE },
2740	{ "pae-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NP },
2741	{ "pae-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE },
2742	{ "pae-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP },
2743	{ "long", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME },
2744	{ "long-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NP },
2745	{ "long-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE },
2746	{ "long-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP }
2747	};
2748	int i = RT_ELEMENTS(s_aModeToFlags);
2749	while (i-- > 0)
2750	if (!strcmp(s_aModeToFlags[i].pszName, paArgs[2].u.pszString))
2751	{
2752	fFlags \|= s_aModeToFlags[i].fFlags;
2753	break;
2754	}
2755	if (i < 0)
2756	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown mode: \"%s\"", paArgs[2].u.pszString);
2757	}
2758	else
2759	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_MODE;
2760
2761	/*
2762	* Call the worker.
2763	*/
2764	rc = DBGFR3PagingDumpEx(pUVM, pDbgc->idCpu, fFlags, cr3, GCPtrFirst, GCPtrLast, 99 /cMaxDepth/,
2765	DBGCCmdHlpGetDbgfOutputHlp(pCmdHlp));
2766	if (RT_FAILURE(rc))
2767	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3PagingDumpEx: %Rrc\n", rc);
2768	return VINF_SUCCESS;
2769	}
2770
2771
2772
2773	/**
2774	* @interface_method_impl{FNDBCCMD, The 'dpg*' commands.}
2775	*/
2776	static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2777	{
2778	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2779
2780	/*
2781	* Validate input.
2782	*/
2783	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1);
2784	if (pCmd->pszCmd[3] == 'a')
2785	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2786	else
2787	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2788	\|\| DBGCVAR_ISPOINTER(paArgs[0].enmType));
2789	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2790
2791	/*
2792	* Guest or shadow page tables? Get the paging parameters.
2793	*/
2794	bool fGuest = pCmd->pszCmd[3] != 'h';
2795	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2796	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2797	? pDbgc->fRegCtxGuest
2798	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2799
2800	bool fPAE, fLME, fPSE, fPGE, fNXE;
2801	uint64_t cr3 = fGuest
2802	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2803	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2804	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2805
2806	/*
2807	* Locate the PTE to start displaying at.
2808	*
2809	* The 'dpta' command takes the address of a PTE, while the others are guest
2810	* virtual address which PTEs should be displayed. So, 'pdta' is rather simple
2811	* while the others require us to do all the tedious walking thru the paging
2812	* hierarchy to find the intended PTE.
2813	*/
2814	unsigned iEntry = ~0U; /* The page table index. ~0U for 'dpta'. */
2815	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PTE (iEntry != ~0U). */
2816	DBGCVAR VarPTEAddr; /* The address of the current PTE. */
2817	unsigned cEntries; /* The number of entries to display. */
2818	unsigned cEntriesMax; /* The max number of entries to display. */
2819	int rc;
2820	if (pCmd->pszCmd[3] == 'a')
2821	{
2822	VarPTEAddr = paArgs[0];
2823	switch (VarPTEAddr.enmRangeType)
2824	{
2825	case DBGCVAR_RANGE_BYTES: cEntries = VarPTEAddr.u64Range / cbEntry; break;
2826	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPTEAddr.u64Range; break;
2827	default: cEntries = 10; break;
2828	}
2829	cEntriesMax = PAGE_SIZE / cbEntry;
2830	}
2831	else
2832	{
2833	/*
2834	* Determine the range.
2835	*/
2836	switch (paArgs[0].enmRangeType)
2837	{
2838	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2839	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2840	default: cEntries = 10; break;
2841	}
2842
2843	/*
2844	* Normalize the input address, it must be a flat GC address.
2845	*/
2846	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2847	if (RT_FAILURE(rc))
2848	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2849	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2850	{
2851	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2852	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2853	}
2854	VarGCPtr.u.GCFlat &= ~(RTGCPTR)PAGE_OFFSET_MASK;
2855
2856	/*
2857	* Do the paging walk until we get to the page table.
2858	*/
2859	DBGCVAR VarCur;
2860	if (fGuest)
2861	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2862	else
2863	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2864	if (fLME)
2865	{
2866	/* Page Map Level 4 Lookup. */
2867	/* Check if it's a valid address first? */
2868	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2869	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2870	X86PML4E Pml4e;
2871	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2872	if (RT_FAILURE(rc))
2873	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2874	if (!Pml4e.n.u1Present)
2875	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2876
2877	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2878	Assert(fPAE);
2879	}
2880	if (fPAE)
2881	{
2882	/* Page directory pointer table. */
2883	X86PDPE Pdpe;
2884	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2885	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2886	if (RT_FAILURE(rc))
2887	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2888	if (!Pdpe.n.u1Present)
2889	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2890
2891	VarCur.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2892
2893	/* Page directory (PAE). */
2894	X86PDEPAE Pde;
2895	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK) * sizeof(Pde);
2896	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
2897	if (RT_FAILURE(rc))
2898	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
2899	if (!Pde.n.u1Present)
2900	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
2901	if (fPSE && Pde.n.u1Size)
2902	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
2903
2904	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
2905	VarPTEAddr = VarCur;
2906	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PAE_PG_MASK;
2907	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTEPAE);
2908	}
2909	else
2910	{
2911	/* Page directory (legacy). */
2912	X86PDE Pde;
2913	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK) * sizeof(Pde);
2914	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
2915	if (RT_FAILURE(rc))
2916	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
2917	if (!Pde.n.u1Present)
2918	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
2919	if (fPSE && Pde.n.u1Size)
2920	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
2921
2922	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_SHIFT) & X86_PT_MASK;
2923	VarPTEAddr = VarCur;
2924	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PG_MASK;
2925	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTE);
2926	}
2927	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2928	}
2929
2930	/* adjust cEntries */
2931	cEntries = RT_MAX(1, cEntries);
2932	cEntries = RT_MIN(cEntries, cEntriesMax);
2933
2934	/*
2935	* The display loop.
2936	*/
2937	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (base %DV / index %#x):\n" : "%DV:\n",
2938	&VarPTEAddr, &VarGCPtr, iEntry);
2939	do
2940	{
2941	/*
2942	* Read.
2943	*/
2944	X86PTEPAE Pte;
2945	Pte.u = 0;
2946	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pte, cbEntry, &VarPTEAddr, NULL);
2947	if (RT_FAILURE(rc))
2948	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PTE memory at %DV.\n", &VarPTEAddr);
2949
2950	/*
2951	* Display.
2952	*/
2953	if (iEntry != ~0U)
2954	{
2955	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2956	iEntry++;
2957	}
2958	DBGCCmdHlpPrintf(pCmdHlp,
2959	fPAE
2960	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2961	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2962	Pte.u,
2963	Pte.u & X86_PTE_PAE_PG_MASK,
2964	Pte.n.u1Present ? "p " : "np",
2965	Pte.n.u1Write ? "w" : "r",
2966	Pte.n.u1User ? "u" : "s",
2967	Pte.n.u1Accessed ? "a " : "na",
2968	Pte.n.u1Dirty ? "d " : "nd",
2969	Pte.n.u3Available,
2970	Pte.n.u1Global ? (fPGE ? "g" : "G") : " ",
2971	Pte.n.u1WriteThru ? "pwt" : " ",
2972	Pte.n.u1CacheDisable ? "pcd" : " ",
2973	Pte.n.u1PAT ? "pat" : " ",
2974	Pte.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " "
2975	);
2976	if (Pte.u & UINT64_C(0x7fff000000000000))
2977	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pte.u & UINT64_C(0x7fff000000000000)));
2978	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2979	if (RT_FAILURE(rc))
2980	return rc;
2981
2982	/*
2983	* Advance.
2984	*/
2985	VarPTEAddr.u.u64Number += cbEntry;
2986	if (iEntry != ~0U)
2987	VarGCPtr.u.GCFlat += PAGE_SIZE;
2988	} while (cEntries-- > 0);
2989
2990	return VINF_SUCCESS;
2991	}
2992
2993
2994	/**
2995	* @interface_method_impl{FNDBCCMD, The 'dptb' command.}
2996	*/
2997	static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2998	{
2999	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3000	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
3001	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
3002	if (RT_FAILURE(rc1))
3003	return rc1;
3004	NOREF(pCmd); NOREF(cArgs);
3005	return rc2;
3006	}
3007
3008
3009	/**
3010	* @interface_method_impl{FNDBCCMD, The 'dt' command.}
3011	*/
3012	static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3013	{
3014	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3015	int rc;
3016
3017	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3018	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
3019	if (cArgs == 1)
3020	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType != DBGCVAR_TYPE_STRING
3021	&& paArgs[0].enmType != DBGCVAR_TYPE_SYMBOL);
3022
3023	/*
3024	* Check if the command indicates the type.
3025	*/
3026	enum { kTss16, kTss32, kTss64, kTssToBeDetermined } enmTssType = kTssToBeDetermined;
3027	if (!strcmp(pCmd->pszCmd, "dt16"))
3028	enmTssType = kTss16;
3029	else if (!strcmp(pCmd->pszCmd, "dt32"))
3030	enmTssType = kTss32;
3031	else if (!strcmp(pCmd->pszCmd, "dt64"))
3032	enmTssType = kTss64;
3033
3034	/*
3035	* We can get a TSS selector (number), a far pointer using a TSS selector, or some kind of TSS pointer.
3036	*/
3037	uint32_t SelTss = UINT32_MAX;
3038	DBGCVAR VarTssAddr;
3039	if (cArgs == 0)
3040	{
3041	/** @todo consider querying the hidden bits instead (missing API). */
3042	uint16_t SelTR;
3043	rc = DBGFR3RegCpuQueryU16(pUVM, pDbgc->idCpu, DBGFREG_TR, &SelTR);
3044	if (RT_FAILURE(rc))
3045	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to query TR, rc=%Rrc\n", rc);
3046	DBGCVAR_INIT_GC_FAR(&VarTssAddr, SelTR, 0);
3047	SelTss = SelTR;
3048	}
3049	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
3050	{
3051	if (paArgs[0].u.u64Number < 0xffff)
3052	DBGCVAR_INIT_GC_FAR(&VarTssAddr, (RTSEL)paArgs[0].u.u64Number, 0);
3053	else
3054	{
3055	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_ELEMENTS)
3056	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Element count doesn't combine with a TSS address.\n");
3057	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, paArgs[0].u.u64Number);
3058	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_BYTES)
3059	{
3060	VarTssAddr.enmRangeType = paArgs[0].enmRangeType;
3061	VarTssAddr.u64Range = paArgs[0].u64Range;
3062	}
3063	}
3064	}
3065	else
3066	VarTssAddr = paArgs[0];
3067
3068	/*
3069	* Deal with TSS:ign by means of the GDT.
3070	*/
3071	if (VarTssAddr.enmType == DBGCVAR_TYPE_GC_FAR)
3072	{
3073	SelTss = VarTssAddr.u.GCFar.sel;
3074	DBGFSELINFO SelInfo;
3075	rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, VarTssAddr.u.GCFar.sel, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
3076	if (RT_FAILURE(rc))
3077	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3SelQueryInfo(,%u,%d,,) -> %Rrc.\n",
3078	pDbgc->idCpu, VarTssAddr.u.GCFar.sel, rc);
3079
3080	if (SelInfo.u.Raw.Gen.u1DescType)
3081	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (!sys)\n", VarTssAddr.u.GCFar.sel);
3082
3083	switch (SelInfo.u.Raw.Gen.u4Type)
3084	{
3085	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
3086	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
3087	if (enmTssType == kTssToBeDetermined)
3088	enmTssType = kTss16;
3089	break;
3090
3091	case X86_SEL_TYPE_SYS_386_TSS_BUSY: /* AMD64 too */
3092	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
3093	if (enmTssType == kTssToBeDetermined)
3094	enmTssType = SelInfo.fFlags & DBGFSELINFO_FLAGS_LONG_MODE ? kTss64 : kTss32;
3095	break;
3096
3097	default:
3098	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (type=%x)\n",
3099	VarTssAddr.u.GCFar.sel, SelInfo.u.Raw.Gen.u4Type);
3100	}
3101
3102	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, SelInfo.GCPtrBase);
3103	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, RT_MAX(SelInfo.cbLimit + 1, SelInfo.cbLimit));
3104	}
3105
3106	/*
3107	* Determine the TSS type if none is currently given.
3108	*/
3109	if (enmTssType == kTssToBeDetermined)
3110	{
3111	if ( VarTssAddr.u64Range > 0
3112	&& VarTssAddr.u64Range < sizeof(X86TSS32) - 4)
3113	enmTssType = kTss16;
3114	else
3115	{
3116	uint64_t uEfer;
3117	rc = DBGFR3RegCpuQueryU64(pUVM, pDbgc->idCpu, DBGFREG_MSR_K6_EFER, &uEfer);
3118	if ( RT_FAILURE(rc)
3119	\|\| !(uEfer & MSR_K6_EFER_LMA) )
3120	enmTssType = kTss32;
3121	else
3122	enmTssType = kTss64;
3123	}
3124	}
3125
3126	/*
3127	* Figure the min/max sizes.
3128	* ASSUMES max TSS size is 64 KB.
3129	*/
3130	uint32_t cbTssMin;
3131	uint32_t cbTssMax;
3132	switch (enmTssType)
3133	{
3134	case kTss16:
3135	cbTssMin = cbTssMax = sizeof(X86TSS16);
3136	break;
3137	case kTss32:
3138	cbTssMin = RT_OFFSETOF(X86TSS32, IntRedirBitmap);
3139	cbTssMax = _64K;
3140	break;
3141	case kTss64:
3142	cbTssMin = RT_OFFSETOF(X86TSS64, IntRedirBitmap);
3143	cbTssMax = _64K;
3144	break;
3145	default:
3146	AssertFailedReturn(VERR_INTERNAL_ERROR);
3147	}
3148	uint32_t cbTss = VarTssAddr.enmRangeType == DBGCVAR_RANGE_BYTES ? (uint32_t)VarTssAddr.u64Range : 0;
3149	if (cbTss == 0)
3150	cbTss = cbTssMin;
3151	else if (cbTss < cbTssMin)
3152	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Minimum TSS size is %u bytes, you specified %llu (%llx) bytes.\n",
3153	cbTssMin, VarTssAddr.u64Range, VarTssAddr.u64Range);
3154	else if (cbTss > cbTssMax)
3155	cbTss = cbTssMax;
3156	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, cbTss);
3157
3158	/*
3159	* Read the TSS into a temporary buffer.
3160	*/
3161	uint8_t abBuf[_64K];
3162	size_t cbTssRead;
3163	rc = DBGCCmdHlpMemRead(pCmdHlp, abBuf, cbTss, &VarTssAddr, &cbTssRead);
3164	if (RT_FAILURE(rc))
3165	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read TSS at %Dv: %Rrc\n", &VarTssAddr, rc);
3166	if (cbTssRead < cbTssMin)
3167	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read essential parts of the TSS (read %zu, min %zu).\n",
3168	cbTssRead, cbTssMin);
3169	if (cbTssRead < cbTss)
3170	memset(&abBuf[cbTssRead], 0xff, cbTss - cbTssRead);
3171
3172
3173	/*
3174	* Format the TSS.
3175	*/
3176	uint16_t offIoBitmap;
3177	switch (enmTssType)
3178	{
3179	case kTss16:
3180	{
3181	PCX86TSS16 pTss = (PCX86TSS16)&abBuf[0];
3182	if (SelTss != UINT32_MAX)
3183	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS16 at %Dv\n", SelTss, &VarTssAddr);
3184	else
3185	DBGCCmdHlpPrintf(pCmdHlp, "TSS16 at %Dv\n", &VarTssAddr);
3186	DBGCCmdHlpPrintf(pCmdHlp,
3187	"ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x\n"
3188	"ip=%04x sp=%04x bp=%04x\n"
3189	"cs=%04x ss=%04x ds=%04x es=%04x flags=%04x\n"
3190	"ss:sp0=%04x:%04x ss:sp1=%04x:%04x ss:sp2=%04x:%04x\n"
3191	"prev=%04x ldtr=%04x\n"
3192	,
3193	pTss->ax, pTss->bx, pTss->cx, pTss->dx, pTss->si, pTss->di,
3194	pTss->ip, pTss->sp, pTss->bp,
3195	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->flags,
3196	pTss->ss0, pTss->sp0, pTss->ss1, pTss->sp1, pTss->ss2, pTss->sp2,
3197	pTss->selPrev, pTss->selLdt);
3198	if (pTss->cs != 0)
3199	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%04x L 0", pTss->cs, pTss->ip);
3200	offIoBitmap = 0;
3201	break;
3202	}
3203
3204	case kTss32:
3205	{
3206	PCX86TSS32 pTss = (PCX86TSS32)&abBuf[0];
3207	if (SelTss != UINT32_MAX)
3208	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS32 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3209	else
3210	DBGCCmdHlpPrintf(pCmdHlp, "TSS32 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3211	DBGCCmdHlpPrintf(pCmdHlp,
3212	"eax=%08x bx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
3213	"eip=%08x esp=%08x ebp=%08x\n"
3214	"cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x eflags=%08x\n"
3215	"ss:esp0=%04x:%08x ss:esp1=%04x:%08x ss:esp2=%04x:%08x\n"
3216	"prev=%04x ldtr=%04x cr3=%08x debug=%u iomap=%04x\n"
3217	,
3218	pTss->eax, pTss->ebx, pTss->ecx, pTss->edx, pTss->esi, pTss->edi,
3219	pTss->eip, pTss->esp, pTss->ebp,
3220	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->fs, pTss->gs, pTss->eflags,
3221	pTss->ss0, pTss->esp0, pTss->ss1, pTss->esp1, pTss->ss2, pTss->esp2,
3222	pTss->selPrev, pTss->selLdt, pTss->cr3, pTss->fDebugTrap, pTss->offIoBitmap);
3223	if (pTss->cs != 0)
3224	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%08x L 0", pTss->cs, pTss->eip);
3225	offIoBitmap = pTss->offIoBitmap;
3226	break;
3227	}
3228
3229	case kTss64:
3230	{
3231	PCX86TSS64 pTss = (PCX86TSS64)&abBuf[0];
3232	if (SelTss != UINT32_MAX)
3233	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS64 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3234	else
3235	DBGCCmdHlpPrintf(pCmdHlp, "TSS64 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3236	DBGCCmdHlpPrintf(pCmdHlp,
3237	"rsp0=%016RX16 rsp1=%016RX16 rsp2=%016RX16\n"
3238	"ist1=%016RX16 ist2=%016RX16\n"
3239	"ist3=%016RX16 ist4=%016RX16\n"
3240	"ist5=%016RX16 ist6=%016RX16\n"
3241	"ist7=%016RX16 iomap=%04x\n"
3242	,
3243	pTss->rsp0, pTss->rsp1, pTss->rsp2,
3244	pTss->ist1, pTss->ist2,
3245	pTss->ist3, pTss->ist4,
3246	pTss->ist5, pTss->ist6,
3247	pTss->ist7, pTss->offIoBitmap);
3248	offIoBitmap = pTss->offIoBitmap;
3249	break;
3250	}
3251
3252	default:
3253	AssertFailedReturn(VERR_INTERNAL_ERROR);
3254	}
3255
3256	/*
3257	* Dump the interrupt redirection bitmap.
3258	*/
3259	if (enmTssType != kTss16)
3260	{
3261	if ( offIoBitmap > cbTssMin
3262	&& offIoBitmap < cbTss) /** @todo check exactly what the edge cases are here. */
3263	{
3264	if (offIoBitmap - cbTssMin >= 32)
3265	{
3266	DBGCCmdHlpPrintf(pCmdHlp, "Interrupt redirection:\n");
3267	uint8_t const *pbIntRedirBitmap = &abBuf[offIoBitmap - 32];
3268	uint32_t iStart = 0;
3269	bool fPrev = ASMBitTest(pbIntRedirBitmap, 0); /* LE/BE issue */
3270	for (uint32_t i = 0; i < 256; i++)
3271	{
3272	bool fThis = ASMBitTest(pbIntRedirBitmap, i);
3273	if (fThis != fPrev)
3274	{
3275	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, i - 1, fPrev ? "Protected mode" : "Redirected");
3276	fPrev = fThis;
3277	iStart = i;
3278	}
3279	}
3280	if (iStart != 255)
3281	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, 255, fPrev ? "Protected mode" : "Redirected");
3282	}
3283	else
3284	DBGCCmdHlpPrintf(pCmdHlp, "Invalid interrupt redirection bitmap size: %u (%#x), expected 32 bytes.\n",
3285	offIoBitmap - cbTssMin, offIoBitmap - cbTssMin);
3286	}
3287	else if (offIoBitmap > 0)
3288	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3289	else
3290	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap\n");
3291	}
3292
3293	/*
3294	* Dump the I/O permission bitmap if present. The IOPM cannot start below offset 0x64
3295	* (that applies to both 32-bit and 64-bit TSSs since their size is the same).
3296	*/
3297	if (enmTssType != kTss16)
3298	{
3299	if (offIoBitmap < cbTss && offIoBitmap >= 0x64)
3300	{
3301	uint32_t cPorts = RT_MIN((cbTss - offIoBitmap) * 8, _64K);
3302	DBGCVAR VarAddr;
3303	DBGCCmdHlpEval(pCmdHlp, &VarAddr, "%DV + %#x", &VarTssAddr, offIoBitmap);
3304	DBGCCmdHlpPrintf(pCmdHlp, "I/O bitmap at %DV - %#x ports:\n", &VarAddr, cPorts);
3305
3306	uint8_t const *pbIoBitmap = &abBuf[offIoBitmap];
3307	uint32_t iStart = 0;
3308	bool fPrev = ASMBitTest(pbIoBitmap, 0);
3309	uint32_t cLine = 0;
3310	for (uint32_t i = 1; i < cPorts; i++)
3311	{
3312	bool fThis = ASMBitTest(pbIoBitmap, i);
3313	if (fThis != fPrev)
3314	{
3315	cLine++;
3316	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s%s", iStart, i-1,
3317	fPrev ? "GP" : "OK", (cLine % 6) == 0 ? "\n" : " ");
3318	fPrev = fThis;
3319	iStart = i;
3320	}
3321	}
3322	if (iStart != _64K-1)
3323	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s\n", iStart, _64K-1, fPrev ? "GP" : "OK");
3324	}
3325	else if (offIoBitmap > 0)
3326	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3327	else
3328	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap\n");
3329	}
3330
3331	return VINF_SUCCESS;
3332	}
3333
3334
3335	/**
3336	* @interface_method_impl{FNDBCCMD, The 'm' command.}
3337	*/
3338	static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3339	{
3340	DBGCCmdHlpPrintf(pCmdHlp, "Address: %DV\n", &paArgs[0]);
3341	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3342	return dbgcCmdDumpPageHierarchy(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
3343	}
3344
3345
3346	/**
3347	* Converts one or more variables into a byte buffer for a
3348	* given unit size.
3349	*
3350	* @returns VBox status codes:
3351	* @retval VERR_TOO_MUCH_DATA if the buffer is too small, bitched.
3352	* @retval VERR_INTERNAL_ERROR on bad variable type, bitched.
3353	* @retval VINF_SUCCESS on success.
3354	*
3355	* @param pvBuf The buffer to convert into.
3356	* @param pcbBuf The buffer size on input. The size of the result on output.
3357	* @param cbUnit The unit size to apply when converting.
3358	* The high bit is used to indicate unicode string.
3359	* @param paVars The array of variables to convert.
3360	* @param cVars The number of variables.
3361	*/
3362	int dbgcVarsToBytes(PDBGCCMDHLP pCmdHlp, void pvBuf, uint32_t pcbBuf, size_t cbUnit, PCDBGCVAR paVars, unsigned cVars)
3363	{
3364	union
3365	{
3366	uint8_t *pu8;
3367	uint16_t *pu16;
3368	uint32_t *pu32;
3369	uint64_t *pu64;
3370	} u, uEnd;
3371	u.pu8 = (uint8_t *)pvBuf;
3372	uEnd.pu8 = u.pu8 + *pcbBuf;
3373
3374	unsigned i;
3375	for (i = 0; i < cVars && u.pu8 < uEnd.pu8; i++)
3376	{
3377	switch (paVars[i].enmType)
3378	{
3379	case DBGCVAR_TYPE_GC_FAR:
3380	case DBGCVAR_TYPE_GC_FLAT:
3381	case DBGCVAR_TYPE_GC_PHYS:
3382	case DBGCVAR_TYPE_HC_FLAT:
3383	case DBGCVAR_TYPE_HC_PHYS:
3384	case DBGCVAR_TYPE_NUMBER:
3385	{
3386	uint64_t u64 = paVars[i].u.u64Number;
3387	switch (cbUnit & 0x1f)
3388	{
3389	case 1:
3390	do
3391	{
3392	*u.pu8++ = u64;
3393	u64 >>= 8;
3394	} while (u64);
3395	break;
3396	case 2:
3397	do
3398	{
3399	*u.pu16++ = u64;
3400	u64 >>= 16;
3401	} while (u64);
3402	break;
3403	case 4:
3404	*u.pu32++ = u64;
3405	u64 >>= 32;
3406	if (u64)
3407	*u.pu32++ = u64;
3408	break;
3409	case 8:
3410	*u.pu64++ = u64;
3411	break;
3412	}
3413	break;
3414	}
3415
3416	case DBGCVAR_TYPE_STRING:
3417	case DBGCVAR_TYPE_SYMBOL:
3418	{
3419	const char *psz = paVars[i].u.pszString;
3420	size_t cbString = strlen(psz);
3421	if (cbUnit & RT_BIT_32(31))
3422	{
3423	/* Explode char to unit. */
3424	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8) * (cbUnit & 0x1f))
3425	{
3426	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3427	return VERR_TOO_MUCH_DATA;
3428	}
3429	while (*psz)
3430	{
3431	switch (cbUnit & 0x1f)
3432	{
3433	case 1: u.pu8++ = psz; break;
3434	case 2: u.pu16++ = psz; break;
3435	case 4: u.pu32++ = psz; break;
3436	case 8: u.pu64++ = psz; break;
3437	}
3438	psz++;
3439	}
3440	}
3441	else
3442	{
3443	/* Raw copy with zero padding if the size isn't aligned. */
3444	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8))
3445	{
3446	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3447	return VERR_TOO_MUCH_DATA;
3448	}
3449
3450	size_t cbCopy = cbString & ~(cbUnit - 1);
3451	memcpy(u.pu8, psz, cbCopy);
3452	u.pu8 += cbCopy;
3453	psz += cbCopy;
3454
3455	size_t cbReminder = cbString & (cbUnit - 1);
3456	if (cbReminder)
3457	{
3458	memcpy(u.pu8, psz, cbString & (cbUnit - 1));
3459	memset(u.pu8 + cbReminder, 0, cbUnit - cbReminder);
3460	u.pu8 += cbUnit;
3461	}
3462	}
3463	break;
3464	}
3465
3466	default:
3467	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3468	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INTERNAL_ERROR,
3469	"i=%d enmType=%d\n", i, paVars[i].enmType);
3470	return VERR_INTERNAL_ERROR;
3471	}
3472	}
3473	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3474	if (i != cVars)
3475	{
3476	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3477	return VERR_TOO_MUCH_DATA;
3478	}
3479	return VINF_SUCCESS;
3480	}
3481
3482
3483	/**
3484	* @interface_method_impl{FNDBCCMD, The 'eb', 'ew', 'ed' and 'eq' commands.}
3485	*/
3486	static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3487	{
3488	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3489	unsigned iArg;
3490
3491	/*
3492	* Validate input.
3493	*/
3494	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2);
3495	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
3496	for (iArg = 1; iArg < cArgs; iArg++)
3497	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER);
3498	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3499
3500	/*
3501	* Figure out the element size.
3502	*/
3503	unsigned cbElement;
3504	switch (pCmd->pszCmd[1])
3505	{
3506	default:
3507	case 'b': cbElement = 1; break;
3508	case 'w': cbElement = 2; break;
3509	case 'd': cbElement = 4; break;
3510	case 'q': cbElement = 8; break;
3511	}
3512
3513	/*
3514	* Do setting.
3515	*/
3516	DBGCVAR Addr = paArgs[0];
3517	for (iArg = 1;;)
3518	{
3519	size_t cbWritten;
3520	int rc = pCmdHlp->pfnMemWrite(pCmdHlp, &paArgs[iArg].u, cbElement, &Addr, &cbWritten);
3521	if (RT_FAILURE(rc))
3522	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Writing memory at %DV.\n", &Addr);
3523	if (cbWritten != cbElement)
3524	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Only wrote %u out of %u bytes!\n", cbWritten, cbElement);
3525
3526	/* advance. */
3527	iArg++;
3528	if (iArg >= cArgs)
3529	break;
3530	rc = DBGCCmdHlpEval(pCmdHlp, &Addr, "%Dv + %#x", &Addr, cbElement);
3531	if (RT_FAILURE(rc))
3532	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3533	}
3534
3535	return VINF_SUCCESS;
3536	}
3537
3538
3539	/**
3540	* Executes the search.
3541	*
3542	* @returns VBox status code.
3543	* @param pCmdHlp The command helpers.
3544	* @param pUVM The user mode VM handle.
3545	* @param pAddress The address to start searching from. (undefined on output)
3546	* @param cbRange The address range to search. Must not wrap.
3547	* @param pabBytes The byte pattern to search for.
3548	* @param cbBytes The size of the pattern.
3549	* @param cbUnit The search unit.
3550	* @param cMaxHits The max number of hits.
3551	* @param pResult Where to store the result if it's a function invocation.
3552	*/
3553	static int dbgcCmdWorkerSearchMemDoIt(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGFADDRESS pAddress, RTGCUINTPTR cbRange,
3554	const uint8_t *pabBytes, uint32_t cbBytes,
3555	uint32_t cbUnit, uint64_t cMaxHits, PDBGCVAR pResult)
3556	{
3557	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3558
3559	/*
3560	* Do the search.
3561	*/
3562	uint64_t cHits = 0;
3563	for (;;)
3564	{
3565	/* search */
3566	DBGFADDRESS HitAddress;
3567	int rc = DBGFR3MemScan(pUVM, pDbgc->idCpu, pAddress, cbRange, 1, pabBytes, cbBytes, &HitAddress);
3568	if (RT_FAILURE(rc))
3569	{
3570	if (rc != VERR_DBGF_MEM_NOT_FOUND)
3571	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3MemScan\n");
3572
3573	/* update the current address so we can save it (later). */
3574	pAddress->off += cbRange;
3575	pAddress->FlatPtr += cbRange;
3576	cbRange = 0;
3577	break;
3578	}
3579
3580	/* report result */
3581	DBGCVAR VarCur;
3582	rc = DBGCCmdHlpVarFromDbgfAddr(pCmdHlp, &HitAddress, &VarCur);
3583	if (RT_FAILURE(rc))
3584	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGCCmdHlpVarFromDbgfAddr\n");
3585	if (!pResult)
3586	pCmdHlp->pfnExec(pCmdHlp, "db %DV LB 10", &VarCur);
3587	else
3588	DBGCVAR_ASSIGN(pResult, &VarCur);
3589
3590	/* advance */
3591	cbRange -= HitAddress.FlatPtr - pAddress->FlatPtr;
3592	*pAddress = HitAddress;
3593	pAddress->FlatPtr += cbBytes;
3594	pAddress->off += cbBytes;
3595	if (cbRange <= cbBytes)
3596	{
3597	cbRange = 0;
3598	break;
3599	}
3600	cbRange -= cbBytes;
3601
3602	if (++cHits >= cMaxHits)
3603	{
3604	/// @todo save the search.
3605	break;
3606	}
3607	}
3608
3609	/*
3610	* Save the search so we can resume it...
3611	*/
3612	if (pDbgc->abSearch != pabBytes)
3613	{
3614	memcpy(pDbgc->abSearch, pabBytes, cbBytes);
3615	pDbgc->cbSearch = cbBytes;
3616	pDbgc->cbSearchUnit = cbUnit;
3617	}
3618	pDbgc->cMaxSearchHits = cMaxHits;
3619	pDbgc->SearchAddr = *pAddress;
3620	pDbgc->cbSearchRange = cbRange;
3621
3622	return cHits ? VINF_SUCCESS : VERR_DBGC_COMMAND_FAILED;
3623	}
3624
3625
3626	/**
3627	* Resumes the previous search.
3628	*
3629	* @returns VBox status code.
3630	* @param pCmdHlp Pointer to the command helper functions.
3631	* @param pUVM The user mode VM handle.
3632	* @param pResult Where to store the result of a function invocation.
3633	*/
3634	static int dbgcCmdWorkerSearchMemResume(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGCVAR pResult)
3635	{
3636	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3637
3638	/*
3639	* Make sure there is a previous command.
3640	*/
3641	if (!pDbgc->cbSearch)
3642	{
3643	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Error: No previous search\n");
3644	return VERR_DBGC_COMMAND_FAILED;
3645	}
3646
3647	/*
3648	* Make range and address adjustments.
3649	*/
3650	DBGFADDRESS Address = pDbgc->SearchAddr;
3651	if (Address.FlatPtr == ~(RTGCUINTPTR)0)
3652	{
3653	Address.FlatPtr -= Address.off;
3654	Address.off = 0;
3655	}
3656
3657	RTGCUINTPTR cbRange = pDbgc->cbSearchRange;
3658	if (!cbRange)
3659	cbRange = ~(RTGCUINTPTR)0;
3660	if (Address.FlatPtr + cbRange < pDbgc->SearchAddr.FlatPtr)
3661	cbRange = ~(RTGCUINTPTR)0 - pDbgc->SearchAddr.FlatPtr + !!pDbgc->SearchAddr.FlatPtr;
3662
3663	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, pDbgc->abSearch, pDbgc->cbSearch,
3664	pDbgc->cbSearchUnit, pDbgc->cMaxSearchHits, pResult);
3665	}
3666
3667
3668	/**
3669	* Search memory, worker for the 's' and 's?' functions.
3670	*
3671	* @returns VBox status.
3672	* @param pCmdHlp Pointer to the command helper functions.
3673	* @param pUVM The user mode VM handle.
3674	* @param pAddress Where to start searching. If no range, search till end of address space.
3675	* @param cMaxHits The maximum number of hits.
3676	* @param chType The search type.
3677	* @param paPatArgs The pattern variable array.
3678	* @param cPatArgs Number of pattern variables.
3679	* @param pResult Where to store the result of a function invocation.
3680	*/
3681	static int dbgcCmdWorkerSearchMem(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pAddress, uint64_t cMaxHits, char chType,
3682	PCDBGCVAR paPatArgs, unsigned cPatArgs, PDBGCVAR pResult)
3683	{
3684	if (pResult)
3685	DBGCVAR_INIT_GC_FLAT(pResult, 0);
3686
3687	/*
3688	* Convert the search pattern into bytes and DBGFR3MemScan can deal with.
3689	*/
3690	uint32_t cbUnit;
3691	switch (chType)
3692	{
3693	case 'a':
3694	case 'b': cbUnit = 1; break;
3695	case 'u': cbUnit = 2 \| RT_BIT_32(31); break;
3696	case 'w': cbUnit = 2; break;
3697	case 'd': cbUnit = 4; break;
3698	case 'q': cbUnit = 8; break;
3699	default:
3700	return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "chType=%c\n", chType);
3701	}
3702	uint8_t abBytes[RT_SIZEOFMEMB(DBGC, abSearch)];
3703	uint32_t cbBytes = sizeof(abBytes);
3704	int rc = dbgcVarsToBytes(pCmdHlp, abBytes, &cbBytes, cbUnit, paPatArgs, cPatArgs);
3705	if (RT_FAILURE(rc))
3706	return VERR_DBGC_COMMAND_FAILED;
3707
3708	/*
3709	* Make DBGF address and fix the range.
3710	*/
3711	DBGFADDRESS Address;
3712	rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pAddress, &Address);
3713	if (RT_FAILURE(rc))
3714	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "VarToDbgfAddr(,%Dv,)\n", pAddress);
3715
3716	RTGCUINTPTR cbRange;
3717	switch (pAddress->enmRangeType)
3718	{
3719	case DBGCVAR_RANGE_BYTES:
3720	cbRange = pAddress->u64Range;
3721	if (cbRange != pAddress->u64Range)
3722	cbRange = ~(RTGCUINTPTR)0;
3723	break;
3724
3725	case DBGCVAR_RANGE_ELEMENTS:
3726	cbRange = (RTGCUINTPTR)(pAddress->u64Range * cbUnit);
3727	if ( cbRange != pAddress->u64Range * cbUnit
3728	\|\| cbRange < pAddress->u64Range)
3729	cbRange = ~(RTGCUINTPTR)0;
3730	break;
3731
3732	default:
3733	cbRange = ~(RTGCUINTPTR)0;
3734	break;
3735	}
3736	if (Address.FlatPtr + cbRange < Address.FlatPtr)
3737	cbRange = ~(RTGCUINTPTR)0 - Address.FlatPtr + !!Address.FlatPtr;
3738
3739	/*
3740	* Ok, do it.
3741	*/
3742	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, abBytes, cbBytes, cbUnit, cMaxHits, pResult);
3743	}
3744
3745
3746	/**
3747	* @interface_method_impl{FNDBCCMD, The 's' command.}
3748	*/
3749	static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3750	{
3751	/* check that the parser did what it's supposed to do. */
3752	//if ( cArgs <= 2
3753	// && paArgs[0].enmType != DBGCVAR_TYPE_STRING)
3754	// return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "parser error\n");
3755
3756	/*
3757	* Repeat previous search?
3758	*/
3759	if (cArgs == 0)
3760	return dbgcCmdWorkerSearchMemResume(pCmdHlp, pUVM, NULL);
3761
3762	/*
3763	* Parse arguments.
3764	*/
3765
3766	return -1;
3767	}
3768
3769
3770	/**
3771	* @interface_method_impl{FNDBCCMD, The 's?' command.}
3772	*/
3773	static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3774	{
3775	/* check that the parser did what it's supposed to do. */
3776	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2 && DBGCVAR_ISGCPOINTER(paArgs[0].enmType));
3777	return dbgcCmdWorkerSearchMem(pCmdHlp, pUVM, &paArgs[0], 25, pCmd->pszCmd[1], paArgs + 1, cArgs - 1, NULL);
3778	}
3779
3780
3781	/**
3782	* List near symbol.
3783	*
3784	* @returns VBox status code.
3785	* @param pCmdHlp Pointer to command helper functions.
3786	* @param pUVM The user mode VM handle.
3787	* @param pArg Pointer to the address or symbol to lookup.
3788	*/
3789	static int dbgcDoListNear(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pArg)
3790	{
3791	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3792
3793	RTDBGSYMBOL Symbol;
3794	int rc;
3795	if (pArg->enmType == DBGCVAR_TYPE_SYMBOL)
3796	{
3797	/*
3798	* Lookup the symbol address.
3799	*/
3800	rc = DBGFR3AsSymbolByName(pUVM, pDbgc->hDbgAs, pArg->u.pszString, &Symbol, NULL);
3801	if (RT_FAILURE(rc))
3802	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3AsSymbolByName(,,%s,)\n", pArg->u.pszString);
3803
3804	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%Rptr %s\n", Symbol.Value, Symbol.szName);
3805	}
3806	else
3807	{
3808	/*
3809	* Convert it to a flat GC address and lookup that address.
3810	*/
3811	DBGCVAR AddrVar;
3812	rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(%DV)", pArg);
3813	if (RT_FAILURE(rc))
3814	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(%DV)\n", pArg);
3815
3816	RTINTPTR offDisp;
3817	DBGFADDRESS Addr;
3818	rc = DBGFR3AsSymbolByAddr(pUVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pDbgc->pUVM, &Addr, AddrVar.u.GCFlat), &offDisp, &Symbol, NULL);
3819	if (RT_FAILURE(rc))
3820	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3ASymbolByAddr(,,%RGv,,)\n", AddrVar.u.GCFlat);
3821
3822	if (!offDisp)
3823	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s", &AddrVar, Symbol.szName);
3824	else if (offDisp > 0)
3825	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s + %RGv", &AddrVar, Symbol.szName, offDisp);
3826	else
3827	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s - %RGv", &AddrVar, Symbol.szName, -offDisp);
3828	if ((RTGCINTPTR)Symbol.cb > -offDisp)
3829	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " LB %RGv\n", Symbol.cb + offDisp);
3830	else
3831	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
3832	}
3833
3834	return rc;
3835	}
3836
3837
3838	/**
3839	* @interface_method_impl{FNDBCCMD, The 'ln' (listnear) command.}
3840	*/
3841	static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3842	{
3843	if (!cArgs)
3844	{
3845	/*
3846	* Current cs:eip symbol.
3847	*/
3848	DBGCVAR AddrVar;
3849	int rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(cs:eip)");
3850	if (RT_FAILURE(rc))
3851	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(cs:eip)\n");
3852	return dbgcDoListNear(pCmdHlp, pUVM, &AddrVar);
3853	}
3854
3855	/** @todo Fix the darn parser, it's resolving symbols specified as arguments before we get in here. */
3856	/*
3857	* Iterate arguments.
3858	*/
3859	for (unsigned iArg = 0; iArg < cArgs; iArg++)
3860	{
3861	int rc = dbgcDoListNear(pCmdHlp, pUVM, &paArgs[iArg]);
3862	if (RT_FAILURE(rc))
3863	return rc;
3864	}
3865
3866	NOREF(pCmd);
3867	return VINF_SUCCESS;
3868	}
3869
3870
3871	/**
3872	* Matches the module patters against a module name.
3873	*
3874	* @returns true if matching, otherwise false.
3875	* @param pszName The module name.
3876	* @param paArgs The module pattern argument list.
3877	* @param cArgs Number of arguments.
3878	*/
3879	static bool dbgcCmdListModuleMatch(const char *pszName, PCDBGCVAR paArgs, unsigned cArgs)
3880	{
3881	for (uint32_t i = 0; i < cArgs; i++)
3882	if (RTStrSimplePatternMatch(paArgs[i].u.pszString, pszName))
3883	return true;
3884	return false;
3885	}
3886
3887
3888	/**
3889	* @interface_method_impl{FNDBCCMD, The 'ln' (list near) command.}
3890	*/
3891	static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3892	{
3893	bool const fMappings = pCmd->pszCmd[2] == 'o';
3894	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3895
3896	/*
3897	* Iterate the modules in the current address space and print info about
3898	* those matching the input.
3899	*/
3900	RTDBGAS hAs = DBGFR3AsResolveAndRetain(pUVM, pDbgc->hDbgAs);
3901	uint32_t cMods = RTDbgAsModuleCount(hAs);
3902	for (uint32_t iMod = 0; iMod < cMods; iMod++)
3903	{
3904	RTDBGMOD hMod = RTDbgAsModuleByIndex(hAs, iMod);
3905	if (hMod != NIL_RTDBGMOD)
3906	{
3907	uint32_t const cSegs = RTDbgModSegmentCount(hMod);
3908	const char * const pszName = RTDbgModName(hMod);
3909	if ( cArgs == 0
3910	\|\| dbgcCmdListModuleMatch(pszName, paArgs, cArgs))
3911	{
3912	/*
3913	* Find the mapping with the lower address, preferring a full
3914	* image mapping, for the main line.
3915	*/
3916	RTDBGASMAPINFO aMappings[128];
3917	uint32_t cMappings = RT_ELEMENTS(aMappings);
3918	int rc = RTDbgAsModuleQueryMapByIndex(hAs, iMod, &aMappings[0], &cMappings, 0 /fFlags/);
3919	if (RT_SUCCESS(rc))
3920	{
3921	bool fFull = false;
3922	RTUINTPTR uMin = RTUINTPTR_MAX;
3923	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
3924	if ( aMappings[iMap].Address < uMin
3925	&& ( !fFull
3926	\|\| aMappings[iMap].iSeg == NIL_RTDBGSEGIDX))
3927	uMin = aMappings[iMap].Address;
3928	DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %s\n", (RTGCUINTPTR)uMin, cSegs, pszName);
3929
3930	if (fMappings)
3931	{
3932	/* sort by address first - not very efficient. */
3933	for (uint32_t i = 0; i + 1 < cMappings; i++)
3934	for (uint32_t j = i + 1; j < cMappings; j++)
3935	if (aMappings[j].Address < aMappings[i].Address)
3936	{
3937	RTDBGASMAPINFO Tmp = aMappings[j];
3938	aMappings[j] = aMappings[i];
3939	aMappings[i] = Tmp;
3940	}
3941
3942	/* print */
3943	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
3944	if (aMappings[iMap].iSeg != NIL_RTDBGSEGIDX)
3945	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
3946	(RTGCUINTPTR)aMappings[iMap].Address,
3947	(RTGCUINTPTR)RTDbgModSegmentSize(hMod, aMappings[iMap].iSeg),
3948	aMappings[iMap].iSeg,
3949	/** @todo RTDbgModSegmentName(hMod, aMappings[iMap].iSeg)*/ "noname");
3950	else
3951	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv <everything>\n",
3952	(RTGCUINTPTR)aMappings[iMap].Address,
3953	(RTGCUINTPTR)RTDbgModImageSize(hMod));
3954	}
3955	}
3956	else
3957	DBGCCmdHlpPrintf(pCmdHlp, "%.*s %04x %s (rc=%Rrc)\n",
3958	sizeof(RTGCPTR) * 2, "???????????", cSegs, pszName, rc);
3959	/** @todo missing address space API for enumerating the mappings. */
3960	}
3961	RTDbgModRelease(hMod);
3962	}
3963	}
3964	RTDbgAsRelease(hAs);
3965
3966	NOREF(pCmd);
3967	return VINF_SUCCESS;
3968	}
3969
3970
3971
3972	/**
3973	* @callback_method_impl{Reads a unsigned 8-bit value.}
3974	*/
3975	static DECLCALLBACK(int) dbgcFuncReadU8(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
3976	PDBGCVAR pResult)
3977	{
3978	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
3979	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
3980	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
3981
3982	uint8_t b;
3983	int rc = DBGCCmdHlpMemRead(pCmdHlp, &b, sizeof(b), &paArgs[0], NULL);
3984	if (RT_FAILURE(rc))
3985	return rc;
3986	DBGCVAR_INIT_NUMBER(pResult, b);
3987
3988	NOREF(pFunc);
3989	return VINF_SUCCESS;
3990	}
3991
3992
3993	/**
3994	* @callback_method_impl{Reads a unsigned 16-bit value.}
3995	*/
3996	static DECLCALLBACK(int) dbgcFuncReadU16(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
3997	PDBGCVAR pResult)
3998	{
3999	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4000	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4001	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4002
4003	uint16_t u16;
4004	int rc = DBGCCmdHlpMemRead(pCmdHlp, &u16, sizeof(u16), &paArgs[0], NULL);
4005	if (RT_FAILURE(rc))
4006	return rc;
4007	DBGCVAR_INIT_NUMBER(pResult, u16);
4008
4009	NOREF(pFunc);
4010	return VINF_SUCCESS;
4011	}
4012
4013
4014	/**
4015	* @callback_method_impl{Reads a unsigned 32-bit value.}
4016	*/
4017	static DECLCALLBACK(int) dbgcFuncReadU32(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4018	PDBGCVAR pResult)
4019	{
4020	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4021	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4022	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4023
4024	uint32_t u32;
4025	int rc = DBGCCmdHlpMemRead(pCmdHlp, &u32, sizeof(u32), &paArgs[0], NULL);
4026	if (RT_FAILURE(rc))
4027	return rc;
4028	DBGCVAR_INIT_NUMBER(pResult, u32);
4029
4030	NOREF(pFunc);
4031	return VINF_SUCCESS;
4032	}
4033
4034
4035	/**
4036	* @callback_method_impl{Reads a unsigned 64-bit value.}
4037	*/
4038	static DECLCALLBACK(int) dbgcFuncReadU64(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4039	PDBGCVAR pResult)
4040	{
4041	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4042	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4043	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4044
4045	uint64_t u64;
4046	int rc = DBGCCmdHlpMemRead(pCmdHlp, &u64, sizeof(u64), &paArgs[0], NULL);
4047	if (RT_FAILURE(rc))
4048	return rc;
4049	DBGCVAR_INIT_NUMBER(pResult, u64);
4050
4051	NOREF(pFunc);
4052	return VINF_SUCCESS;
4053	}
4054
4055
4056	/**
4057	* @callback_method_impl{Reads a unsigned pointer-sized value.}
4058	*/
4059	static DECLCALLBACK(int) dbgcFuncReadPtr(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4060	PDBGCVAR pResult)
4061	{
4062	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4063	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4064	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4065
4066	CPUMMODE enmMode = DBGCCmdHlpGetCpuMode(pCmdHlp);
4067	if (enmMode == CPUMMODE_LONG)
4068	return dbgcFuncReadU64(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4069	return dbgcFuncReadU32(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4070	}
4071
4072
4073	/**
4074	* @callback_method_impl{The hi(value) function implementation.}
4075	*/
4076	static DECLCALLBACK(int) dbgcFuncHi(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4077	PDBGCVAR pResult)
4078	{
4079	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4080
4081	uint16_t uHi;
4082	switch (paArgs[0].enmType)
4083	{
4084	case DBGCVAR_TYPE_GC_FLAT: uHi = (uint16_t)(paArgs[0].u.GCFlat >> 16); break;
4085	case DBGCVAR_TYPE_GC_FAR: uHi = (uint16_t)paArgs[0].u.GCFar.sel; break;
4086	case DBGCVAR_TYPE_GC_PHYS: uHi = (uint16_t)(paArgs[0].u.GCPhys >> 16); break;
4087	case DBGCVAR_TYPE_HC_FLAT: uHi = (uint16_t)((uintptr_t)paArgs[0].u.pvHCFlat >> 16); break;
4088	case DBGCVAR_TYPE_HC_PHYS: uHi = (uint16_t)(paArgs[0].u.HCPhys >> 16); break;
4089	case DBGCVAR_TYPE_NUMBER: uHi = (uint16_t)(paArgs[0].u.u64Number >> 16); break;
4090	default:
4091	AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4092	}
4093	DBGCVAR_INIT_NUMBER(pResult, uHi);
4094	DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4095
4096	NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4097	return VINF_SUCCESS;
4098	}
4099
4100
4101	/**
4102	* @callback_method_impl{The low(value) function implementation.}
4103	*/
4104	static DECLCALLBACK(int) dbgcFuncLow(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4105	PDBGCVAR pResult)
4106	{
4107	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4108
4109	uint16_t uLow;
4110	switch (paArgs[0].enmType)
4111	{
4112	case DBGCVAR_TYPE_GC_FLAT: uLow = (uint16_t)paArgs[0].u.GCFlat; break;
4113	case DBGCVAR_TYPE_GC_FAR: uLow = (uint16_t)paArgs[0].u.GCFar.off; break;
4114	case DBGCVAR_TYPE_GC_PHYS: uLow = (uint16_t)paArgs[0].u.GCPhys; break;
4115	case DBGCVAR_TYPE_HC_FLAT: uLow = (uint16_t)(uintptr_t)paArgs[0].u.pvHCFlat; break;
4116	case DBGCVAR_TYPE_HC_PHYS: uLow = (uint16_t)paArgs[0].u.HCPhys; break;
4117	case DBGCVAR_TYPE_NUMBER: uLow = (uint16_t)paArgs[0].u.u64Number; break;
4118	default:
4119	AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4120	}
4121	DBGCVAR_INIT_NUMBER(pResult, uLow);
4122	DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4123
4124	NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4125	return VINF_SUCCESS;
4126	}
4127
4128
4129	/**
4130	* @callback_method_impl{The low(value) function implementation.}
4131	*/
4132	static DECLCALLBACK(int) dbgcFuncNot(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4133	PDBGCVAR pResult)
4134	{
4135	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4136	NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4137	return DBGCCmdHlpEval(pCmdHlp, pResult, "!(%Dv)", &paArgs[0]);
4138	}
4139
4140
4141	/** Generic pointer argument wo/ range. */
4142	static const DBGCVARDESC g_aArgPointerWoRange[] =
4143	{
4144	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4145	{ 1, 1, DBGCVAR_CAT_POINTER_NO_RANGE, 0, "value", "Address or number." },
4146	};
4147
4148	/** Generic pointer or number argument. */
4149	static const DBGCVARDESC g_aArgPointerNumber[] =
4150	{
4151	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4152	{ 1, 1, DBGCVAR_CAT_POINTER_NUMBER, 0, "value", "Address or number." },
4153	};
4154
4155
4156
4157	/** Function descriptors for the CodeView / WinDbg emulation.
4158	* The emulation isn't attempting to be identical, only somewhat similar.
4159	*/
4160	const DBGCFUNC g_aFuncsCodeView[] =
4161	{
4162	{ "by", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU8, "address", "Reads a byte at the given address." },
4163	{ "dwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU32, "address", "Reads a 32-bit value at the given address." },
4164	{ "hi", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncHi, "value", "Returns the high 16-bit bits of a value." },
4165	{ "low", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncLow, "value", "Returns the low 16-bit bits of a value." },
4166	{ "not", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncNot, "address", "Boolean NOT." },
4167	{ "poi", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadPtr, "address", "Reads a pointer sized (CS) value at the given address." },
4168	{ "qwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU64, "address", "Reads a 32-bit value at the given address." },
4169	{ "wo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU16, "address", "Reads a 16-bit value at the given address." },
4170	};
4171
4172	/** The number of functions in the CodeView/WinDbg emulation. */
4173	const uint32_t g_cFuncsCodeView = RT_ELEMENTS(g_aFuncsCodeView);
4174

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source: vbox/trunk/src/VBox/Debugger/DBGCEmulateCodeView.cpp@ 45983

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