DBGCEmulateCodeView.cpp@ 46158

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1	/* $Id: DBGCEmulateCodeView.cpp 46158 2013-05-18 13:21:05Z 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	{ "lmv", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules, verbose." },
345	{ "lmo", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules and their segments." },
346	{ "lmov", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules and their segments, verbose." },
347	{ "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." },
348	{ "ls", 0, 1, &g_aArgListSource[0],RT_ELEMENTS(g_aArgListSource), 0, dbgcCmdListSource, "[addr]", "Source." },
349	{ "m", 1, 1, &g_aArgMemoryInfo[0],RT_ELEMENTS(g_aArgMemoryInfo), 0, dbgcCmdMemoryInfo, "<addr>", "Display information about that piece of memory." },
350	{ "r", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdReg, "[reg [newval]]", "Show or set register(s) - active reg set." },
351	{ "rg", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdRegGuest, "[reg [newval]]", "Show or set register(s) - guest reg set." },
352	{ "rg32", 0, 0, NULL, 0, 0, dbgcCmdRegGuest, "", "Show 32-bit guest registers." },
353	{ "rg64", 0, 0, NULL, 0, 0, dbgcCmdRegGuest, "", "Show 64-bit guest registers." },
354	{ "rh", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdRegHyper, "[reg [newval]]", "Show or set register(s) - hypervisor reg set." },
355	{ "rt", 0, 0, NULL, 0, 0, dbgcCmdRegTerse, "", "Toggles terse / verbose register info." },
356	{ "s", 0, ~0U, &g_aArgSearchMem[0], RT_ELEMENTS(g_aArgSearchMem), 0, dbgcCmdSearchMem, "[options] <range> <pattern>", "Continue last search." },
357	{ "sa", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an ascii string." },
358	{ "sb", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more bytes." },
359	{ "sd", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more double words." },
360	{ "sq", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more quad words." },
361	{ "su", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an unicode string." },
362	{ "sw", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more words." },
363	{ "t", 0, 0, NULL, 0, 0, dbgcCmdTrace, "", "Instruction trace (step into)." },
364	{ "u", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble." },
365	{ "u64", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 64-bit code." },
366	{ "u32", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 32-bit code." },
367	{ "u16", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code." },
368	{ "uv86", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code with v8086/real mode addressing." },
369	};
370
371	/** The number of commands in the CodeView/WinDbg emulation. */
372	const uint32_t g_cCmdsCodeView = RT_ELEMENTS(g_aCmdsCodeView);
373
374
375
376
377	/**
378	* @interface_method_impl{FNDBCCMD, The 'go' command.}
379	*/
380	static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
381	{
382	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
383
384	/*
385	* Check if the VM is halted or not before trying to resume it.
386	*/
387	if (!DBGFR3IsHalted(pUVM))
388	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The VM is already running");
389
390	int rc = DBGFR3Resume(pUVM);
391	if (RT_FAILURE(rc))
392	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3Resume");
393
394	NOREF(paArgs); NOREF(cArgs);
395	return VINF_SUCCESS;
396	}
397
398
399	/**
400	* @interface_method_impl{FNDBCCMD, The 'ba' command.}
401	*/
402	static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
403	{
404	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
405
406	/*
407	* Interpret access type.
408	*/
409	if ( !strchr("xrwi", paArgs[0].u.pszString[0])
410	\|\| paArgs[0].u.pszString[1])
411	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access type '%s' for '%s'. Valid types are 'e', 'r', 'w' and 'i'",
412	paArgs[0].u.pszString, pCmd->pszCmd);
413	uint8_t fType = 0;
414	switch (paArgs[0].u.pszString[0])
415	{
416	case 'x': fType = X86_DR7_RW_EO; break;
417	case 'r': fType = X86_DR7_RW_RW; break;
418	case 'w': fType = X86_DR7_RW_WO; break;
419	case 'i': fType = X86_DR7_RW_IO; break;
420	}
421
422	/*
423	* Validate size.
424	*/
425	if (fType == X86_DR7_RW_EO && paArgs[1].u.u64Number != 1)
426	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 'x' access type requires size 1!",
427	paArgs[1].u.u64Number, pCmd->pszCmd);
428	switch (paArgs[1].u.u64Number)
429	{
430	case 1:
431	case 2:
432	case 4:
433	break;
434	/case 8: - later/
435	default:
436	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 1, 2 or 4!",
437	paArgs[1].u.u64Number, pCmd->pszCmd);
438	}
439	uint8_t cb = (uint8_t)paArgs[1].u.u64Number;
440
441	/*
442	* Convert the pointer to a DBGF address.
443	*/
444	DBGFADDRESS Address;
445	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[2], &Address);
446	if (RT_FAILURE(rc))
447	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,%DV,)", &paArgs[2]);
448
449	/*
450	* Pick out the optional arguments.
451	*/
452	uint64_t iHitTrigger = 0;
453	uint64_t iHitDisable = ~0;
454	const char *pszCmds = NULL;
455	unsigned iArg = 3;
456	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
457	{
458	iHitTrigger = paArgs[iArg].u.u64Number;
459	iArg++;
460	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
461	{
462	iHitDisable = paArgs[iArg].u.u64Number;
463	iArg++;
464	}
465	}
466	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
467	{
468	pszCmds = paArgs[iArg].u.pszString;
469	iArg++;
470	}
471
472	/*
473	* Try set the breakpoint.
474	*/
475	uint32_t iBp;
476	rc = DBGFR3BpSetReg(pUVM, &Address, iHitTrigger, iHitDisable, fType, cb, &iBp);
477	if (RT_SUCCESS(rc))
478	{
479	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
480	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
481	if (RT_SUCCESS(rc))
482	return DBGCCmdHlpPrintf(pCmdHlp, "Set access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
483	if (rc == VERR_DBGC_BP_EXISTS)
484	{
485	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
486	if (RT_SUCCESS(rc))
487	return DBGCCmdHlpPrintf(pCmdHlp, "Updated access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
488	}
489	int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
490	AssertRC(rc2);
491	}
492	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set access breakpoint at %RGv", Address.FlatPtr);
493	}
494
495
496	/**
497	* @interface_method_impl{FNDBCCMD, The 'bc' command.}
498	*/
499	static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
500	{
501	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
502
503	/*
504	* Enumerate the arguments.
505	*/
506	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
507	int rc = VINF_SUCCESS;
508	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
509	{
510	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
511	{
512	/* one */
513	uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
514	if (iBp == paArgs[iArg].u.u64Number)
515	{
516	int rc2 = DBGFR3BpClear(pUVM, iBp);
517	if (RT_FAILURE(rc2))
518	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpClear(,%#x)", iBp);
519	if (RT_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
520	dbgcBpDelete(pDbgc, iBp);
521	}
522	else
523	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
524	}
525	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
526	{
527	/* all */
528	PDBGCBP pBp = pDbgc->pFirstBp;
529	while (pBp)
530	{
531	uint32_t iBp = pBp->iBp;
532	pBp = pBp->pNext;
533
534	int rc2 = DBGFR3BpClear(pUVM, iBp);
535	if (RT_FAILURE(rc2))
536	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpClear(,%#x)", iBp);
537	if (RT_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
538	dbgcBpDelete(pDbgc, iBp);
539	}
540	}
541	else
542	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
543	}
544	return rc;
545	}
546
547
548	/**
549	* @interface_method_impl{FNDBCCMD, The 'bd' command.}
550	*/
551	static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
552	{
553	/*
554	* Enumerate the arguments.
555	*/
556	int rc = VINF_SUCCESS;
557	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
558	{
559	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
560	{
561	/* one */
562	uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
563	if (iBp == paArgs[iArg].u.u64Number)
564	{
565	rc = DBGFR3BpDisable(pUVM, iBp);
566	if (RT_FAILURE(rc))
567	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpDisable failed for breakpoint %#x", iBp);
568	}
569	else
570	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
571	}
572	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
573	{
574	/* all */
575	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
576	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
577	{
578	int rc2 = DBGFR3BpDisable(pUVM, pBp->iBp);
579	if (RT_FAILURE(rc2))
580	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpDisable failed for breakpoint %#x", pBp->iBp);
581	}
582	}
583	else
584	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
585	}
586	return rc;
587	}
588
589
590	/**
591	* @interface_method_impl{FNDBCCMD, The 'be' command.}
592	*/
593	static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
594	{
595	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
596
597	/*
598	* Enumerate the arguments.
599	*/
600	int rc = VINF_SUCCESS;
601	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
602	{
603	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
604	{
605	/* one */
606	uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
607	if (iBp == paArgs[iArg].u.u64Number)
608	{
609	rc = DBGFR3BpEnable(pUVM, iBp);
610	if (RT_FAILURE(rc))
611	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnable failed for breakpoint %#x", iBp);
612	}
613	else
614	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
615	}
616	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
617	{
618	/* all */
619	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
620	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
621	{
622	int rc2 = DBGFR3BpEnable(pUVM, pBp->iBp);
623	if (RT_FAILURE(rc2))
624	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpEnable failed for breakpoint %#x", pBp->iBp);
625	}
626	}
627	else
628	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
629	}
630	return rc;
631	}
632
633
634	/**
635	* Breakpoint enumeration callback function.
636	*
637	* @returns VBox status code. Any failure will stop the enumeration.
638	* @param pUVM The user mode VM handle.
639	* @param pvUser The user argument.
640	* @param pBp Pointer to the breakpoint information. (readonly)
641	*/
642	static DECLCALLBACK(int) dbgcEnumBreakpointsCallback(PUVM pUVM, void *pvUser, PCDBGFBP pBp)
643	{
644	PDBGC pDbgc = (PDBGC)pvUser;
645	PDBGCBP pDbgcBp = dbgcBpGet(pDbgc, pBp->iBp);
646
647	/*
648	* BP type and size.
649	*/
650	char chType;
651	char cb = 1;
652	switch (pBp->enmType)
653	{
654	case DBGFBPTYPE_INT3:
655	chType = 'p';
656	break;
657	case DBGFBPTYPE_REG:
658	switch (pBp->u.Reg.fType)
659	{
660	case X86_DR7_RW_EO: chType = 'x'; break;
661	case X86_DR7_RW_WO: chType = 'w'; break;
662	case X86_DR7_RW_IO: chType = 'i'; break;
663	case X86_DR7_RW_RW: chType = 'r'; break;
664	default: chType = '?'; break;
665
666	}
667	cb = pBp->u.Reg.cb;
668	break;
669	case DBGFBPTYPE_REM:
670	chType = 'r';
671	break;
672	default:
673	chType = '?';
674	break;
675	}
676
677	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%#4x %c %d %c %RGv %04RX64 (%04RX64 to ",
678	pBp->iBp, pBp->fEnabled ? 'e' : 'd', (int)cb, chType,
679	pBp->GCPtr, pBp->cHits, pBp->iHitTrigger);
680	if (pBp->iHitDisable == ~(uint64_t)0)
681	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "~0) ");
682	else
683	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%04RX64)", pBp->iHitDisable);
684
685	/*
686	* Try resolve the address.
687	*/
688	RTDBGSYMBOL Sym;
689	RTINTPTR off;
690	DBGFADDRESS Addr;
691	int rc = DBGFR3AsSymbolByAddr(pUVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pDbgc->pUVM, &Addr, pBp->GCPtr),
692	RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &off, &Sym, NULL);
693	if (RT_SUCCESS(rc))
694	{
695	if (!off)
696	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s", Sym.szName);
697	else if (off > 0)
698	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s+%RGv", Sym.szName, off);
699	else
700	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s-%RGv", Sym.szName, -off);
701	}
702
703	/*
704	* The commands.
705	*/
706	if (pDbgcBp)
707	{
708	if (pDbgcBp->cchCmd)
709	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n cmds: '%s'\n", pDbgcBp->szCmd);
710	else
711	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n");
712	}
713	else
714	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " [unknown bp]\n");
715
716	return VINF_SUCCESS;
717	}
718
719
720	/**
721	* @interface_method_impl{FNDBCCMD, The 'bl' command.}
722	*/
723	static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
724	{
725	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
726	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, -1, cArgs == 0);
727	NOREF(paArgs);
728
729	/*
730	* Enumerate the breakpoints.
731	*/
732	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
733	int rc = DBGFR3BpEnum(pUVM, dbgcEnumBreakpointsCallback, pDbgc);
734	if (RT_FAILURE(rc))
735	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnum");
736	return rc;
737	}
738
739
740	/**
741	* @interface_method_impl{FNDBCCMD, The 'bp' command.}
742	*/
743	static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
744	{
745	/*
746	* Convert the pointer to a DBGF address.
747	*/
748	DBGFADDRESS Address;
749	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
750	if (RT_FAILURE(rc))
751	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
752
753	/*
754	* Pick out the optional arguments.
755	*/
756	uint64_t iHitTrigger = 0;
757	uint64_t iHitDisable = ~0;
758	const char *pszCmds = NULL;
759	unsigned iArg = 1;
760	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
761	{
762	iHitTrigger = paArgs[iArg].u.u64Number;
763	iArg++;
764	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
765	{
766	iHitDisable = paArgs[iArg].u.u64Number;
767	iArg++;
768	}
769	}
770	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
771	{
772	pszCmds = paArgs[iArg].u.pszString;
773	iArg++;
774	}
775
776	/*
777	* Try set the breakpoint.
778	*/
779	uint32_t iBp;
780	rc = DBGFR3BpSet(pUVM, &Address, iHitTrigger, iHitDisable, &iBp);
781	if (RT_SUCCESS(rc))
782	{
783	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
784	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
785	if (RT_SUCCESS(rc))
786	return DBGCCmdHlpPrintf(pCmdHlp, "Set breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
787	if (rc == VERR_DBGC_BP_EXISTS)
788	{
789	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
790	if (RT_SUCCESS(rc))
791	return DBGCCmdHlpPrintf(pCmdHlp, "Updated breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
792	}
793	int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
794	AssertRC(rc2);
795	}
796	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set breakpoint at %RGv", Address.FlatPtr);
797	}
798
799
800	/**
801	* @interface_method_impl{FNDBCCMD, The 'br' command.}
802	*/
803	static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
804	{
805	/*
806	* Convert the pointer to a DBGF address.
807	*/
808	DBGFADDRESS Address;
809	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
810	if (RT_FAILURE(rc))
811	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
812
813	/*
814	* Pick out the optional arguments.
815	*/
816	uint64_t iHitTrigger = 0;
817	uint64_t iHitDisable = ~0;
818	const char *pszCmds = NULL;
819	unsigned iArg = 1;
820	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
821	{
822	iHitTrigger = paArgs[iArg].u.u64Number;
823	iArg++;
824	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
825	{
826	iHitDisable = paArgs[iArg].u.u64Number;
827	iArg++;
828	}
829	}
830	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
831	{
832	pszCmds = paArgs[iArg].u.pszString;
833	iArg++;
834	}
835
836	/*
837	* Try set the breakpoint.
838	*/
839	uint32_t iBp;
840	rc = DBGFR3BpSetREM(pUVM, &Address, iHitTrigger, iHitDisable, &iBp);
841	if (RT_SUCCESS(rc))
842	{
843	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
844	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
845	if (RT_SUCCESS(rc))
846	return DBGCCmdHlpPrintf(pCmdHlp, "Set REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
847	if (rc == VERR_DBGC_BP_EXISTS)
848	{
849	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
850	if (RT_SUCCESS(rc))
851	return DBGCCmdHlpPrintf(pCmdHlp, "Updated REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
852	}
853	int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
854	AssertRC(rc2);
855	}
856	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set REM breakpoint at %RGv", Address.FlatPtr);
857	}
858
859
860	/**
861	* Helps the unassmble ('u') command display symbols it starts at and passes.
862	*
863	* @param pUVM The user mode VM handle.
864	* @param pCmdHlp The command helpers for printing via.
865	* @param hDbgAs The address space to look up addresses in.
866	* @param pAddress The current address.
867	* @param pcbCallAgain Where to return the distance to the next check (in
868	* instruction bytes).
869	*/
870	static void dbgcCmdUnassambleHelpListNear(PUVM pUVM, PDBGCCMDHLP pCmdHlp, RTDBGAS hDbgAs, PCDBGFADDRESS pAddress,
871	PRTUINTPTR pcbCallAgain)
872	{
873	RTDBGSYMBOL Symbol;
874	RTGCINTPTR offDispSym;
875	int rc = DBGFR3AsSymbolByAddr(pUVM, hDbgAs, pAddress, RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &offDispSym, &Symbol, NULL);
876	if (RT_FAILURE(rc) \|\| offDispSym > _1G)
877	rc = DBGFR3AsSymbolByAddr(pUVM, hDbgAs, pAddress, RTDBGSYMADDR_FLAGS_GREATER_OR_EQUAL, &offDispSym, &Symbol, NULL);
878	if (RT_SUCCESS(rc) && offDispSym < _1G)
879	{
880	if (!offDispSym)
881	{
882	DBGCCmdHlpPrintf(pCmdHlp, "%s:\n", Symbol.szName);
883	*pcbCallAgain = Symbol.cb;
884	}
885	else if (offDispSym > 0)
886	{
887	DBGCCmdHlpPrintf(pCmdHlp, "%s+%#llx:\n", Symbol.szName, (uint64_t)offDispSym);
888	*pcbCallAgain = Symbol.cb > (RTGCUINTPTR)offDispSym ? Symbol.cb - (RTGCUINTPTR)offDispSym : 1;
889	}
890	else
891	{
892	DBGCCmdHlpPrintf(pCmdHlp, "%s-%#llx:\n", Symbol.szName, (uint64_t)-offDispSym);
893	*pcbCallAgain = (RTGCUINTPTR)-offDispSym + Symbol.cb;
894	}
895	}
896	else
897	*pcbCallAgain = UINT32_MAX;
898	}
899
900
901	/**
902	* @interface_method_impl{FNDBCCMD, The 'u' command.}
903	*/
904	static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
905	{
906	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
907
908	/*
909	* Validate input.
910	*/
911	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
912	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, -1, cArgs <= 1);
913	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 0 \|\| DBGCVAR_ISPOINTER(paArgs[0].enmType));
914
915	if (!cArgs && !DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
916	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Don't know where to start disassembling");
917
918	/*
919	* Check the desired mode.
920	*/
921	unsigned fFlags = DBGF_DISAS_FLAGS_NO_ADDRESS;
922	switch (pCmd->pszCmd[1])
923	{
924	default: AssertFailed();
925	case '\0': fFlags \|= DBGF_DISAS_FLAGS_DEFAULT_MODE; break;
926	case '6': fFlags \|= DBGF_DISAS_FLAGS_64BIT_MODE; break;
927	case '3': fFlags \|= DBGF_DISAS_FLAGS_32BIT_MODE; break;
928	case '1': fFlags \|= DBGF_DISAS_FLAGS_16BIT_MODE; break;
929	case 'v': fFlags \|= DBGF_DISAS_FLAGS_16BIT_REAL_MODE; break;
930	}
931
932	/** @todo should use DBGFADDRESS for everything */
933
934	/*
935	* Find address.
936	*/
937	if (!cArgs)
938	{
939	if (!DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
940	{
941	/** @todo Batch query CS, RIP & CPU mode. */
942	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
943	if ( pDbgc->fRegCtxGuest
944	&& CPUMIsGuestIn64BitCode(pVCpu))
945	{
946	pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FLAT;
947	pDbgc->SourcePos.u.GCFlat = CPUMGetGuestRIP(pVCpu);
948	}
949	else
950	{
951	pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FAR;
952	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
953	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
954	}
955
956	if (pDbgc->fRegCtxGuest)
957	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_GUEST;
958	else
959	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_HYPER \| DBGF_DISAS_FLAGS_HYPER;
960	}
961	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_NONE;
962	}
963	else
964	pDbgc->DisasmPos = paArgs[0];
965	pDbgc->pLastPos = &pDbgc->DisasmPos;
966
967	/*
968	* Range.
969	*/
970	switch (pDbgc->DisasmPos.enmRangeType)
971	{
972	case DBGCVAR_RANGE_NONE:
973	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
974	pDbgc->DisasmPos.u64Range = 10;
975	break;
976
977	case DBGCVAR_RANGE_ELEMENTS:
978	if (pDbgc->DisasmPos.u64Range > 2048)
979	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Too many lines requested. Max is 2048 lines");
980	break;
981
982	case DBGCVAR_RANGE_BYTES:
983	if (pDbgc->DisasmPos.u64Range > 65536)
984	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The requested range is too big. Max is 64KB");
985	break;
986
987	default:
988	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown range type %d", pDbgc->DisasmPos.enmRangeType);
989	}
990
991	/*
992	* Convert physical and host addresses to guest addresses.
993	*/
994	RTDBGAS hDbgAs = pDbgc->hDbgAs;
995	int rc;
996	switch (pDbgc->DisasmPos.enmType)
997	{
998	case DBGCVAR_TYPE_GC_FLAT:
999	case DBGCVAR_TYPE_GC_FAR:
1000	break;
1001	case DBGCVAR_TYPE_GC_PHYS:
1002	hDbgAs = DBGF_AS_PHYS;
1003	case DBGCVAR_TYPE_HC_FLAT:
1004	case DBGCVAR_TYPE_HC_PHYS:
1005	{
1006	DBGCVAR VarTmp;
1007	rc = DBGCCmdHlpEval(pCmdHlp, &VarTmp, "%%(%Dv)", &pDbgc->DisasmPos);
1008	if (RT_FAILURE(rc))
1009	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "failed to evaluate '%%(%Dv)'", &pDbgc->DisasmPos);
1010	pDbgc->DisasmPos = VarTmp;
1011	break;
1012	}
1013	default: AssertFailed(); break;
1014	}
1015
1016	DBGFADDRESS CurAddr;
1017	rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->DisasmPos, &CurAddr);
1018	if (RT_FAILURE(rc))
1019	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr failed on '%Dv'", &pDbgc->DisasmPos);
1020
1021	if (CurAddr.fFlags & DBGFADDRESS_FLAGS_HMA)
1022	fFlags \|= DBGF_DISAS_FLAGS_HYPER; /* This crap is due to not using DBGFADDRESS as DBGFR3Disas* input. */
1023
1024	/*
1025	* Figure out where we are and display it. Also calculate when we need to
1026	* check for a new symbol if possible.
1027	*/
1028	RTGCUINTPTR cbCheckSymbol;
1029	dbgcCmdUnassambleHelpListNear(pUVM, pCmdHlp, hDbgAs, &CurAddr, &cbCheckSymbol);
1030
1031	/*
1032	* Do the disassembling.
1033	*/
1034	unsigned cTries = 32;
1035	int iRangeLeft = (int)pDbgc->DisasmPos.u64Range;
1036	if (iRangeLeft == 0) /* kludge for 'r'. */
1037	iRangeLeft = -1;
1038	for (;;)
1039	{
1040	/*
1041	* Disassemble the instruction.
1042	*/
1043	char szDis[256];
1044	uint32_t cbInstr = 1;
1045	if (pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FLAT)
1046	rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, DBGF_SEL_FLAT, pDbgc->DisasmPos.u.GCFlat, fFlags,
1047	&szDis[0], sizeof(szDis), &cbInstr);
1048	else
1049	rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, pDbgc->DisasmPos.u.GCFar.sel, pDbgc->DisasmPos.u.GCFar.off, fFlags,
1050	&szDis[0], sizeof(szDis), &cbInstr);
1051	if (RT_SUCCESS(rc))
1052	{
1053	/* print it */
1054	rc = DBGCCmdHlpPrintf(pCmdHlp, "%-16DV %s\n", &pDbgc->DisasmPos, &szDis[0]);
1055	if (RT_FAILURE(rc))
1056	return rc;
1057	}
1058	else
1059	{
1060	/* bitch. */
1061	int rc2 = DBGCCmdHlpPrintf(pCmdHlp, "Failed to disassemble instruction, skipping one byte.\n");
1062	if (RT_FAILURE(rc2))
1063	return rc2;
1064	if (cTries-- > 0)
1065	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Too many disassembly failures. Giving up");
1066	cbInstr = 1;
1067	}
1068
1069	/* advance */
1070	if (iRangeLeft < 0) /* 'r' */
1071	break;
1072	if (pDbgc->DisasmPos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1073	iRangeLeft--;
1074	else
1075	iRangeLeft -= cbInstr;
1076	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DisasmPos, "(%Dv) + %x", &pDbgc->DisasmPos, cbInstr);
1077	if (RT_FAILURE(rc))
1078	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpEval(,,'(%Dv) + %x')", &pDbgc->DisasmPos, cbInstr);
1079	if (iRangeLeft <= 0)
1080	break;
1081	fFlags &= ~(DBGF_DISAS_FLAGS_CURRENT_GUEST \| DBGF_DISAS_FLAGS_CURRENT_HYPER);
1082
1083	/* Print next symbol? */
1084	if (cbCheckSymbol <= cbInstr)
1085	{
1086	rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->DisasmPos, &CurAddr);
1087	if (RT_SUCCESS(rc))
1088	dbgcCmdUnassambleHelpListNear(pUVM, pCmdHlp, hDbgAs, &CurAddr, &cbCheckSymbol);
1089	else
1090	cbCheckSymbol = UINT32_MAX;
1091	}
1092	else
1093	cbCheckSymbol -= cbInstr;
1094	}
1095
1096	NOREF(pCmd);
1097	return VINF_SUCCESS;
1098	}
1099
1100
1101	/**
1102	* @interface_method_impl{FNDBCCMD, The 'ls' command.}
1103	*/
1104	static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1105	{
1106	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1107
1108	/*
1109	* Validate input.
1110	*/
1111	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
1112	if (cArgs == 1)
1113	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
1114	if (!pUVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1115	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Don't know where to start listing...");
1116	if (!pUVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
1117	return DBGCCmdHlpFail(pCmdHlp, pCmd, "GC address but no VM");
1118
1119	/*
1120	* Find address.
1121	*/
1122	if (!cArgs)
1123	{
1124	if (!DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1125	{
1126	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
1127	pDbgc->SourcePos.enmType = DBGCVAR_TYPE_GC_FAR;
1128	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
1129	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
1130	}
1131	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_NONE;
1132	}
1133	else
1134	pDbgc->SourcePos = paArgs[0];
1135	pDbgc->pLastPos = &pDbgc->SourcePos;
1136
1137	/*
1138	* Ensure the source address is flat GC.
1139	*/
1140	switch (pDbgc->SourcePos.enmType)
1141	{
1142	case DBGCVAR_TYPE_GC_FLAT:
1143	break;
1144	case DBGCVAR_TYPE_GC_PHYS:
1145	case DBGCVAR_TYPE_GC_FAR:
1146	case DBGCVAR_TYPE_HC_FLAT:
1147	case DBGCVAR_TYPE_HC_PHYS:
1148	{
1149	int rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "%%(%Dv)", &pDbgc->SourcePos);
1150	if (RT_FAILURE(rc))
1151	return DBGCCmdHlpPrintf(pCmdHlp, "error: Invalid address or address type. (rc=%d)\n", rc);
1152	break;
1153	}
1154	default: AssertFailed(); break;
1155	}
1156
1157	/*
1158	* Range.
1159	*/
1160	switch (pDbgc->SourcePos.enmRangeType)
1161	{
1162	case DBGCVAR_RANGE_NONE:
1163	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1164	pDbgc->SourcePos.u64Range = 10;
1165	break;
1166
1167	case DBGCVAR_RANGE_ELEMENTS:
1168	if (pDbgc->SourcePos.u64Range > 2048)
1169	return DBGCCmdHlpPrintf(pCmdHlp, "error: Too many lines requested. Max is 2048 lines.\n");
1170	break;
1171
1172	case DBGCVAR_RANGE_BYTES:
1173	if (pDbgc->SourcePos.u64Range > 65536)
1174	return DBGCCmdHlpPrintf(pCmdHlp, "error: The requested range is too big. Max is 64KB.\n");
1175	break;
1176
1177	default:
1178	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: Unknown range type %d.\n", pDbgc->SourcePos.enmRangeType);
1179	}
1180
1181	/*
1182	* Do the disassembling.
1183	*/
1184	bool fFirst = 1;
1185	DBGFLINE LinePrev = { 0, 0, "" };
1186	int iRangeLeft = (int)pDbgc->SourcePos.u64Range;
1187	if (iRangeLeft == 0) /* kludge for 'r'. */
1188	iRangeLeft = -1;
1189	for (;;)
1190	{
1191	/*
1192	* Get line info.
1193	*/
1194	DBGFLINE Line;
1195	RTGCINTPTR off;
1196	int rc = DBGFR3LineByAddr(pUVM, pDbgc->SourcePos.u.GCFlat, &off, &Line);
1197	if (RT_FAILURE(rc))
1198	return VINF_SUCCESS;
1199
1200	unsigned cLines = 0;
1201	if (memcmp(&Line, &LinePrev, sizeof(Line)))
1202	{
1203	/*
1204	* Print filenamename
1205	*/
1206	if (!fFirst && strcmp(Line.szFilename, LinePrev.szFilename))
1207	fFirst = true;
1208	if (fFirst)
1209	{
1210	rc = DBGCCmdHlpPrintf(pCmdHlp, "[%s @ %d]\n", Line.szFilename, Line.uLineNo);
1211	if (RT_FAILURE(rc))
1212	return rc;
1213	}
1214
1215	/*
1216	* Try open the file and read the line.
1217	*/
1218	FILE *phFile = fopen(Line.szFilename, "r");
1219	if (phFile)
1220	{
1221	/* Skip ahead to the desired line. */
1222	char szLine[4096];
1223	unsigned cBefore = fFirst ? RT_MIN(2, Line.uLineNo - 1) : Line.uLineNo - LinePrev.uLineNo - 1;
1224	if (cBefore > 7)
1225	cBefore = 0;
1226	unsigned cLeft = Line.uLineNo - cBefore;
1227	while (cLeft > 0)
1228	{
1229	szLine[0] = '\0';
1230	if (!fgets(szLine, sizeof(szLine), phFile))
1231	break;
1232	cLeft--;
1233	}
1234	if (!cLeft)
1235	{
1236	/* print the before lines */
1237	for (;;)
1238	{
1239	size_t cch = strlen(szLine);
1240	while (cch > 0 && (szLine[cch - 1] == '\r' \|\| szLine[cch - 1] == '\n' \|\| RT_C_IS_SPACE(szLine[cch - 1])) )
1241	szLine[--cch] = '\0';
1242	if (cBefore-- <= 0)
1243	break;
1244
1245	rc = DBGCCmdHlpPrintf(pCmdHlp, " %4d: %s\n", Line.uLineNo - cBefore - 1, szLine);
1246	szLine[0] = '\0';
1247	fgets(szLine, sizeof(szLine), phFile);
1248	cLines++;
1249	}
1250	/* print the actual line */
1251	rc = DBGCCmdHlpPrintf(pCmdHlp, "%08llx %4d: %s\n", Line.Address, Line.uLineNo, szLine);
1252	}
1253	fclose(phFile);
1254	if (RT_FAILURE(rc))
1255	return rc;
1256	fFirst = false;
1257	}
1258	else
1259	return DBGCCmdHlpPrintf(pCmdHlp, "Warning: couldn't open source file '%s'\n", Line.szFilename);
1260
1261	LinePrev = Line;
1262	}
1263
1264
1265	/*
1266	* Advance
1267	*/
1268	if (iRangeLeft < 0) /* 'r' */
1269	break;
1270	if (pDbgc->SourcePos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1271	iRangeLeft -= cLines;
1272	else
1273	iRangeLeft -= 1;
1274	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "(%Dv) + %x", &pDbgc->SourcePos, 1);
1275	if (RT_FAILURE(rc))
1276	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->SourcePos, 1);
1277	if (iRangeLeft <= 0)
1278	break;
1279	}
1280
1281	NOREF(pCmd);
1282	return 0;
1283	}
1284
1285
1286	/**
1287	* @interface_method_impl{FNDBCCMD, The 'r' command.}
1288	*/
1289	static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1290	{
1291	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1292	if (!pDbgc->fRegCtxGuest)
1293	return dbgcCmdRegHyper(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1294	return dbgcCmdRegGuest(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1295	}
1296
1297
1298	/**
1299	* @interface_method_impl{FNDBCCMD, Common worker for the dbgcCmdReg*()
1300	* commands.}
1301	*/
1302	static DECLCALLBACK(int) dbgcCmdRegCommon(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs,
1303	const char *pszPrefix)
1304	{
1305	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1306	Assert(cArgs == 1 \|\| cArgs == 2); /* cArgs == 0 is handled by the caller */
1307	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1 \|\| cArgs == 2);
1308	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_STRING
1309	\|\| paArgs[0].enmType == DBGCVAR_TYPE_SYMBOL);
1310
1311	/*
1312	* Parse the register name and kind.
1313	*/
1314	const char *pszReg = paArgs[0].u.pszString;
1315	if (*pszReg == '@')
1316	pszReg++;
1317	VMCPUID idCpu = pDbgc->idCpu;
1318	if (*pszPrefix)
1319	idCpu \|= DBGFREG_HYPER_VMCPUID;
1320	if (*pszReg == '.')
1321	{
1322	pszReg++;
1323	idCpu \|= DBGFREG_HYPER_VMCPUID;
1324	}
1325	const char * const pszActualPrefix = idCpu & DBGFREG_HYPER_VMCPUID ? "." : "";
1326
1327	/*
1328	* Query the register type & value (the setter needs the type).
1329	*/
1330	DBGFREGVALTYPE enmType;
1331	DBGFREGVAL Value;
1332	int rc = DBGFR3RegNmQuery(pUVM, idCpu, pszReg, &Value, &enmType);
1333	if (RT_FAILURE(rc))
1334	{
1335	if (rc == VERR_DBGF_REGISTER_NOT_FOUND)
1336	return DBGCCmdHlpVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "Unknown register: '%s%s'.\n",
1337	pszActualPrefix, pszReg);
1338	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmQuery failed querying '%s%s': %Rrc.\n",
1339	pszActualPrefix, pszReg, rc);
1340	}
1341	if (cArgs == 1)
1342	{
1343	/*
1344	* Show the register.
1345	*/
1346	char szValue[160];
1347	rc = DBGFR3RegFormatValue(szValue, sizeof(szValue), &Value, enmType, true /fSpecial/);
1348	if (RT_SUCCESS(rc))
1349	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s%s=%s\n", pszActualPrefix, pszReg, szValue);
1350	else
1351	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1352	}
1353	else if (cArgs == 2)
1354	{
1355	/*
1356	* Modify the register.
1357	*/
1358	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 1, paArgs[1].enmType == DBGCVAR_TYPE_STRING
1359	\|\| paArgs[1].enmType == DBGCVAR_TYPE_SYMBOL);
1360	if (enmType != DBGFREGVALTYPE_DTR)
1361	{
1362	enmType = DBGFREGVALTYPE_U64;
1363	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.u64);
1364	}
1365	else
1366	{
1367	enmType = DBGFREGVALTYPE_DTR;
1368	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.dtr.u64Base);
1369	if (RT_SUCCESS(rc) && paArgs[1].enmRangeType != DBGCVAR_RANGE_NONE)
1370	Value.dtr.u32Limit = (uint32_t)paArgs[1].u64Range;
1371	}
1372	if (RT_SUCCESS(rc))
1373	{
1374	rc = DBGFR3RegNmSet(pUVM, idCpu, pszReg, &Value, enmType);
1375	if (RT_FAILURE(rc))
1376	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmSet failed settings '%s%s': %Rrc\n",
1377	pszActualPrefix, pszReg, rc);
1378	}
1379	else
1380	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1381	}
1382	else
1383	{
1384	NOREF(pCmd); NOREF(paArgs);
1385	rc = DBGCCmdHlpPrintf(pCmdHlp, "Huh? cArgs=%d Expected 0, 1 or 2!\n", cArgs);
1386	}
1387	return rc;
1388	}
1389
1390
1391	/**
1392	* @interface_method_impl{FNDBCCMD, The 'rg', 'rg64' and 'rg32' commands.}
1393	*/
1394	static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1395	{
1396	/*
1397	* Show all registers our selves.
1398	*/
1399	if (cArgs == 0)
1400	{
1401	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1402	bool const f64BitMode = !strcmp(pCmd->pszCmd, "rg64")
1403	\|\| ( !strcmp(pCmd->pszCmd, "rg32")
1404	&& CPUMIsGuestIn64BitCode(VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu)));
1405	char szDisAndRegs[8192];
1406	int rc;
1407
1408	if (pDbgc->fRegTerse)
1409	{
1410	if (f64BitMode)
1411	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1412	"u %016VR{rip} L 0\n"
1413	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1414	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1415	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1416	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1417	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1418	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} rflags=%08VR{rflags}\n");
1419	else
1420	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1421	"u %04VR{cs}:%08VR{eip} L 0\n"
1422	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1423	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1424	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} eflags=%08VR{eflags}\n");
1425	}
1426	else
1427	{
1428	if (f64BitMode)
1429	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1430	"u %016VR{rip} L 0\n"
1431	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1432	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1433	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1434	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1435	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1436	"cs={%04VR{cs} base=%016VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} cr0=%016VR{cr0}\n"
1437	"ds={%04VR{ds} base=%016VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} cr2=%016VR{cr2}\n"
1438	"es={%04VR{es} base=%016VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} cr3=%016VR{cr3}\n"
1439	"fs={%04VR{fs} base=%016VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr4=%016VR{cr4}\n"
1440	"gs={%04VR{gs} base=%016VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr8=%016VR{cr8}\n"
1441	"ss={%04VR{ss} base=%016VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1442	"dr0=%016VR{dr0} dr1=%016VR{dr1} dr2=%016VR{dr2} dr3=%016VR{dr3}\n"
1443	"dr6=%016VR{dr6} dr7=%016VR{dr7}\n"
1444	"gdtr=%016VR{gdtr_base}:%04VR{gdtr_lim} idtr=%016VR{idtr_base}:%04VR{idtr_lim} rflags=%08VR{rflags}\n"
1445	"ldtr={%04VR{ldtr} base=%016VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%08VR{ldtr_attr}}\n"
1446	"tr ={%04VR{tr} base=%016VR{tr_base} limit=%08VR{tr_lim} flags=%08VR{tr_attr}}\n"
1447	" sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1448	" efer=%016VR{efer}\n"
1449	" pat=%016VR{pat}\n"
1450	" sf_mask=%016VR{sf_mask}\n"
1451	"krnl_gs_base=%016VR{krnl_gs_base}\n"
1452	" lstar=%016VR{lstar}\n"
1453	" star=%016VR{star} cstar=%016VR{cstar}\n"
1454	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1455	);
1456	else
1457	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1458	"u %04VR{cs}:%08VR{eip} L 0\n"
1459	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1460	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1461	"cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} dr0=%08VR{dr0} dr1=%08VR{dr1}\n"
1462	"ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} dr2=%08VR{dr2} dr3=%08VR{dr3}\n"
1463	"es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} dr6=%08VR{dr6} dr7=%08VR{dr7}\n"
1464	"fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr0=%08VR{cr0} cr2=%08VR{cr2}\n"
1465	"gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr3=%08VR{cr3} cr4=%08VR{cr4}\n"
1466	"ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}} cr8=%08VR{cr8}\n"
1467	"gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} idtr=%08VR{idtr_base}:%04VR{idtr_lim} eflags=%08VR{eflags}\n"
1468	"ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1469	"tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1470	"sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1471	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1472	);
1473	}
1474	if (RT_FAILURE(rc))
1475	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1476	char *pszRegs = strchr(szDisAndRegs, '\n');
1477	*pszRegs++ = '\0';
1478	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1479
1480	/*
1481	* Disassemble one instruction at cs:[r\|e]ip.
1482	*/
1483	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1484	}
1485	return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, "");
1486	}
1487
1488
1489	/**
1490	* @interface_method_impl{FNDBCCMD, The 'rh' command.}
1491	*/
1492	static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1493	{
1494	/*
1495	* Show all registers our selves.
1496	*/
1497	if (cArgs == 0)
1498	{
1499	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1500	char szDisAndRegs[8192];
1501	int rc;
1502
1503	if (pDbgc->fRegTerse)
1504	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1505	"u %VR{cs}:%VR{eip} L 0\n"
1506	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1507	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1508	".cs=%04VR{cs} .ds=%04VR{ds} .es=%04VR{es} .fs=%04VR{fs} .gs=%04VR{gs} .ss=%04VR{ss} .eflags=%08VR{eflags}\n");
1509	else
1510	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1511	"u %04VR{cs}:%08VR{eip} L 0\n"
1512	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1513	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1514	".cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} .dr0=%08VR{dr0} .dr1=%08VR{dr1}\n"
1515	".ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} .dr2=%08VR{dr2} .dr3=%08VR{dr3}\n"
1516	".es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} .dr6=%08VR{dr6} .dr6=%08VR{dr6}\n"
1517	".fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} .cr3=%016VR{cr3}\n"
1518	".gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}}\n"
1519	".ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1520	".gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} .idtr=%08VR{idtr_base}:%04VR{idtr_lim} .eflags=%08VR{eflags}\n"
1521	".ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1522	".tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1523	);
1524	if (RT_FAILURE(rc))
1525	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1526	char *pszRegs = strchr(szDisAndRegs, '\n');
1527	*pszRegs++ = '\0';
1528	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1529
1530	/*
1531	* Disassemble one instruction at cs:[r\|e]ip.
1532	*/
1533	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1534	}
1535	return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, ".");
1536	}
1537
1538
1539	/**
1540	* @interface_method_impl{FNDBCCMD, The 'rt' command.}
1541	*/
1542	static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1543	{
1544	NOREF(pCmd); NOREF(pUVM); NOREF(paArgs); NOREF(cArgs);
1545
1546	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1547	pDbgc->fRegTerse = !pDbgc->fRegTerse;
1548	return DBGCCmdHlpPrintf(pCmdHlp, pDbgc->fRegTerse ? "info: Terse register info.\n" : "info: Verbose register info.\n");
1549	}
1550
1551
1552	/**
1553	* @interface_method_impl{FNDBCCMD, The 't' command.}
1554	*/
1555	static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1556	{
1557	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1558
1559	int rc = DBGFR3Step(pUVM, pDbgc->idCpu);
1560	if (RT_SUCCESS(rc))
1561	pDbgc->fReady = false;
1562	else
1563	rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to single step VM %p\n", pDbgc->pVM);
1564
1565	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
1566	return rc;
1567	}
1568
1569
1570	/**
1571	* @interface_method_impl{FNDBCCMD, The 'k', 'kg' and 'kh' commands.}
1572	*/
1573	static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1574	{
1575	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1576
1577	/*
1578	* Figure which context we're called for and start walking that stack.
1579	*/
1580	int rc;
1581	PCDBGFSTACKFRAME pFirstFrame;
1582	bool const fGuest = pCmd->pszCmd[1] == 'g'
1583	\|\| (!pCmd->pszCmd[1] && pDbgc->fRegCtxGuest);
1584	rc = DBGFR3StackWalkBegin(pUVM, pDbgc->idCpu, fGuest ? DBGFCODETYPE_GUEST : DBGFCODETYPE_HYPER, &pFirstFrame);
1585	if (RT_FAILURE(rc))
1586	return DBGCCmdHlpPrintf(pCmdHlp, "Failed to begin stack walk, rc=%Rrc\n", rc);
1587
1588	/*
1589	* Print header.
1590	* 12345678 12345678 0023:87654321 12345678 87654321 12345678 87654321 symbol
1591	*/
1592	uint32_t fBitFlags = 0;
1593	for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
1594	pFrame;
1595	pFrame = DBGFR3StackWalkNext(pFrame))
1596	{
1597	uint32_t const fCurBitFlags = pFrame->fFlags & (DBGFSTACKFRAME_FLAGS_16BIT \| DBGFSTACKFRAME_FLAGS_32BIT \| DBGFSTACKFRAME_FLAGS_64BIT);
1598	if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_16BIT)
1599	{
1600	if (fCurBitFlags != fBitFlags)
1601	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "SS:BP Ret SS:BP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1602	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04RX16:%04RX16 %04RX16:%04RX16 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1603	pFrame->AddrFrame.Sel,
1604	(uint16_t)pFrame->AddrFrame.off,
1605	pFrame->AddrReturnFrame.Sel,
1606	(uint16_t)pFrame->AddrReturnFrame.off,
1607	(uint32_t)pFrame->AddrReturnPC.Sel,
1608	(uint32_t)pFrame->AddrReturnPC.off,
1609	pFrame->Args.au32[0],
1610	pFrame->Args.au32[1],
1611	pFrame->Args.au32[2],
1612	pFrame->Args.au32[3]);
1613	}
1614	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT)
1615	{
1616	if (fCurBitFlags != fBitFlags)
1617	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1618	rc = DBGCCmdHlpPrintf(pCmdHlp, "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1619	(uint32_t)pFrame->AddrFrame.off,
1620	(uint32_t)pFrame->AddrReturnFrame.off,
1621	(uint32_t)pFrame->AddrReturnPC.Sel,
1622	(uint32_t)pFrame->AddrReturnPC.off,
1623	pFrame->Args.au32[0],
1624	pFrame->Args.au32[1],
1625	pFrame->Args.au32[2],
1626	pFrame->Args.au32[3]);
1627	}
1628	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT)
1629	{
1630	if (fCurBitFlags != fBitFlags)
1631	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "RBP Ret SS:RBP Ret RIP CS:RIP / Symbol [line]\n");
1632	rc = DBGCCmdHlpPrintf(pCmdHlp, "%016RX64 %04RX16:%016RX64 %016RX64",
1633	(uint64_t)pFrame->AddrFrame.off,
1634	pFrame->AddrReturnFrame.Sel,
1635	(uint64_t)pFrame->AddrReturnFrame.off,
1636	(uint64_t)pFrame->AddrReturnPC.off);
1637	}
1638	if (RT_FAILURE(rc))
1639	break;
1640	if (!pFrame->pSymPC)
1641	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1642	fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1643	? " %RTsel:%016RGv"
1644	: fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT
1645	? " %RTsel:%08RGv"
1646	: " %RTsel:%04RGv"
1647	, pFrame->AddrPC.Sel, pFrame->AddrPC.off);
1648	else
1649	{
1650	RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value; /** @todo this isn't 100% correct for segmented stuff. */
1651	if (offDisp > 0)
1652	rc = DBGCCmdHlpPrintf(pCmdHlp, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
1653	else if (offDisp < 0)
1654	rc = DBGCCmdHlpPrintf(pCmdHlp, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
1655	else
1656	rc = DBGCCmdHlpPrintf(pCmdHlp, " %s", pFrame->pSymPC->szName);
1657	}
1658	if (RT_SUCCESS(rc) && pFrame->pLinePC)
1659	rc = DBGCCmdHlpPrintf(pCmdHlp, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
1660	if (RT_SUCCESS(rc))
1661	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
1662	if (RT_FAILURE(rc))
1663	break;
1664
1665	fBitFlags = fCurBitFlags;
1666	}
1667
1668	DBGFR3StackWalkEnd(pFirstFrame);
1669
1670	NOREF(paArgs); NOREF(cArgs);
1671	return rc;
1672	}
1673
1674
1675	static int dbgcCmdDumpDTWorker64(PDBGCCMDHLP pCmdHlp, PCX86DESC64 pDesc, unsigned iEntry, bool fHyper, bool *pfDblEntry)
1676	{
1677	/* GUEST64 */
1678	int rc;
1679
1680	const char *pszHyper = fHyper ? " HYPER" : "";
1681	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1682	if (pDesc->Gen.u1DescType)
1683	{
1684	static const char * const s_apszTypes[] =
1685	{
1686	"DataRO", /* 0 Read-Only */
1687	"DataRO", /* 1 Read-Only - Accessed */
1688	"DataRW", /* 2 Read/Write */
1689	"DataRW", /* 3 Read/Write - Accessed */
1690	"DownRO", /* 4 Expand-down, Read-Only */
1691	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1692	"DownRW", /* 6 Expand-down, Read/Write */
1693	"DownRW", /* 7 Expand-down, Read/Write - Accessed */
1694	"CodeEO", /* 8 Execute-Only */
1695	"CodeEO", /* 9 Execute-Only - Accessed */
1696	"CodeER", /* A Execute/Readable */
1697	"CodeER", /* B Execute/Readable - Accessed */
1698	"ConfE0", /* C Conforming, Execute-Only */
1699	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1700	"ConfER", /* E Conforming, Execute/Readable */
1701	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1702	};
1703	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1704	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1705	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1706	uint32_t u32Base = X86DESC_BASE(pDesc);
1707	uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1708
1709	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1710	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1711	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1712	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1713	}
1714	else
1715	{
1716	static const char * const s_apszTypes[] =
1717	{
1718	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1719	"Ill-1 ", /* 1 0001 Available 16-bit TSS */
1720	"LDT ", /* 2 0010 LDT */
1721	"Ill-3 ", /* 3 0011 Busy 16-bit TSS */
1722	"Ill-4 ", /* 4 0100 16-bit Call Gate */
1723	"Ill-5 ", /* 5 0101 Task Gate */
1724	"Ill-6 ", /* 6 0110 16-bit Interrupt Gate */
1725	"Ill-7 ", /* 7 0111 16-bit Trap Gate */
1726	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1727	"Tss64A", /* 9 1001 Available 32-bit TSS */
1728	"Ill-A ", /* A 1010 Reserved (Illegal) */
1729	"Tss64B", /* B 1011 Busy 32-bit TSS */
1730	"Call64", /* C 1100 32-bit Call Gate */
1731	"Ill-D ", /* D 1101 Reserved (Illegal) */
1732	"Int64 ", /* E 1110 32-bit Interrupt Gate */
1733	"Trap64" /* F 1111 32-bit Trap Gate */
1734	};
1735	switch (pDesc->Gen.u4Type)
1736	{
1737	/* raw */
1738	case X86_SEL_TYPE_SYS_UNDEFINED:
1739	case X86_SEL_TYPE_SYS_UNDEFINED2:
1740	case X86_SEL_TYPE_SYS_UNDEFINED4:
1741	case X86_SEL_TYPE_SYS_UNDEFINED3:
1742	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1743	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1744	case X86_SEL_TYPE_SYS_286_CALL_GATE:
1745	case X86_SEL_TYPE_SYS_286_INT_GATE:
1746	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1747	case X86_SEL_TYPE_SYS_TASK_GATE:
1748	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1749	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1750	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1751	break;
1752
1753	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1754	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1755	case X86_SEL_TYPE_SYS_LDT:
1756	{
1757	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1758	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1759	const char *pszLong = pDesc->Gen.u1Long ? "LONG" : " ";
1760
1761	uint64_t u32Base = X86DESC64_BASE(pDesc);
1762	uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1763
1764	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%016RX64 Lim=%08x DPL=%d %s %s %s %sAVL=%d R=%d%s\n",
1765	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1766	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszLong, pszBig,
1767	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1768	pszHyper);
1769	if (pfDblEntry)
1770	*pfDblEntry = true;
1771	break;
1772	}
1773
1774	case X86_SEL_TYPE_SYS_386_CALL_GATE:
1775	{
1776	unsigned cParams = pDesc->au8[4] & 0x1f;
1777	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1778	RTSEL sel = pDesc->au16[1];
1779	uint64_t off = pDesc->au16[0]
1780	\| ((uint64_t)pDesc->au16[3] << 16)
1781	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1782	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s %s=%d%s\n",
1783	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1784	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1785	if (pfDblEntry)
1786	*pfDblEntry = true;
1787	break;
1788	}
1789
1790	case X86_SEL_TYPE_SYS_386_INT_GATE:
1791	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1792	{
1793	RTSEL sel = pDesc->au16[1];
1794	uint64_t off = pDesc->au16[0]
1795	\| ((uint64_t)pDesc->au16[3] << 16)
1796	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1797	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s%s\n",
1798	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1799	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1800	if (pfDblEntry)
1801	*pfDblEntry = true;
1802	break;
1803	}
1804
1805	/* impossible, just it's necessary to keep gcc happy. */
1806	default:
1807	return VINF_SUCCESS;
1808	}
1809	}
1810	return VINF_SUCCESS;
1811	}
1812
1813
1814	/**
1815	* Worker function that displays one descriptor entry (GDT, LDT, IDT).
1816	*
1817	* @returns pfnPrintf status code.
1818	* @param pCmdHlp The DBGC command helpers.
1819	* @param pDesc The descriptor to display.
1820	* @param iEntry The descriptor entry number.
1821	* @param fHyper Whether the selector belongs to the hypervisor or not.
1822	*/
1823	static int dbgcCmdDumpDTWorker32(PDBGCCMDHLP pCmdHlp, PCX86DESC pDesc, unsigned iEntry, bool fHyper)
1824	{
1825	int rc;
1826
1827	const char *pszHyper = fHyper ? " HYPER" : "";
1828	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1829	if (pDesc->Gen.u1DescType)
1830	{
1831	static const char * const s_apszTypes[] =
1832	{
1833	"DataRO", /* 0 Read-Only */
1834	"DataRO", /* 1 Read-Only - Accessed */
1835	"DataRW", /* 2 Read/Write */
1836	"DataRW", /* 3 Read/Write - Accessed */
1837	"DownRO", /* 4 Expand-down, Read-Only */
1838	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1839	"DownRW", /* 6 Expand-down, Read/Write */
1840	"DownRW", /* 7 Expand-down, Read/Write - Accessed */
1841	"CodeEO", /* 8 Execute-Only */
1842	"CodeEO", /* 9 Execute-Only - Accessed */
1843	"CodeER", /* A Execute/Readable */
1844	"CodeER", /* B Execute/Readable - Accessed */
1845	"ConfE0", /* C Conforming, Execute-Only */
1846	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1847	"ConfER", /* E Conforming, Execute/Readable */
1848	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1849	};
1850	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1851	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1852	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1853	uint32_t u32Base = pDesc->Gen.u16BaseLow
1854	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1855	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1856	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1857	if (pDesc->Gen.u1Granularity)
1858	cbLimit <<= PAGE_SHIFT;
1859
1860	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1861	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1862	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1863	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1864	}
1865	else
1866	{
1867	static const char * const s_apszTypes[] =
1868	{
1869	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1870	"Tss16A", /* 1 0001 Available 16-bit TSS */
1871	"LDT ", /* 2 0010 LDT */
1872	"Tss16B", /* 3 0011 Busy 16-bit TSS */
1873	"Call16", /* 4 0100 16-bit Call Gate */
1874	"TaskG ", /* 5 0101 Task Gate */
1875	"Int16 ", /* 6 0110 16-bit Interrupt Gate */
1876	"Trap16", /* 7 0111 16-bit Trap Gate */
1877	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1878	"Tss32A", /* 9 1001 Available 32-bit TSS */
1879	"Ill-A ", /* A 1010 Reserved (Illegal) */
1880	"Tss32B", /* B 1011 Busy 32-bit TSS */
1881	"Call32", /* C 1100 32-bit Call Gate */
1882	"Ill-D ", /* D 1101 Reserved (Illegal) */
1883	"Int32 ", /* E 1110 32-bit Interrupt Gate */
1884	"Trap32" /* F 1111 32-bit Trap Gate */
1885	};
1886	switch (pDesc->Gen.u4Type)
1887	{
1888	/* raw */
1889	case X86_SEL_TYPE_SYS_UNDEFINED:
1890	case X86_SEL_TYPE_SYS_UNDEFINED2:
1891	case X86_SEL_TYPE_SYS_UNDEFINED4:
1892	case X86_SEL_TYPE_SYS_UNDEFINED3:
1893	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1894	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1895	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1896	break;
1897
1898	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1899	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1900	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1901	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1902	case X86_SEL_TYPE_SYS_LDT:
1903	{
1904	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1905	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1906	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1907	uint32_t u32Base = pDesc->Gen.u16BaseLow
1908	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1909	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1910	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1911	if (pDesc->Gen.u1Granularity)
1912	cbLimit <<= PAGE_SHIFT;
1913
1914	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
1915	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1916	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszGranularity, pszBig,
1917	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1918	pszHyper);
1919	break;
1920	}
1921
1922	case X86_SEL_TYPE_SYS_TASK_GATE:
1923	{
1924	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s TSS=%04x DPL=%d %s%s\n",
1925	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc->au16[1],
1926	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1927	break;
1928	}
1929
1930	case X86_SEL_TYPE_SYS_286_CALL_GATE:
1931	case X86_SEL_TYPE_SYS_386_CALL_GATE:
1932	{
1933	unsigned cParams = pDesc->au8[4] & 0x1f;
1934	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1935	RTSEL sel = pDesc->au16[1];
1936	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
1937	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%08x DPL=%d %s %s=%d%s\n",
1938	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1939	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1940	break;
1941	}
1942
1943	case X86_SEL_TYPE_SYS_286_INT_GATE:
1944	case X86_SEL_TYPE_SYS_386_INT_GATE:
1945	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1946	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1947	{
1948	RTSEL sel = pDesc->au16[1];
1949	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
1950	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%08x DPL=%d %s%s\n",
1951	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1952	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1953	break;
1954	}
1955
1956	/* impossible, just it's necessary to keep gcc happy. */
1957	default:
1958	return VINF_SUCCESS;
1959	}
1960	}
1961	return rc;
1962	}
1963
1964
1965	/**
1966	* @interface_method_impl{FNDBCCMD, The 'dg', 'dga', 'dl' and 'dla' commands.}
1967	*/
1968	static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1969	{
1970	/*
1971	* Validate input.
1972	*/
1973	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
1974
1975	/*
1976	* Get the CPU mode, check which command variation this is
1977	* and fix a default parameter if needed.
1978	*/
1979	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1980	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
1981	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
1982	bool fGdt = pCmd->pszCmd[1] == 'g';
1983	bool fAll = pCmd->pszCmd[2] == 'a';
1984	RTSEL SelTable = fGdt ? 0 : X86_SEL_LDT;
1985
1986	DBGCVAR Var;
1987	if (!cArgs)
1988	{
1989	cArgs = 1;
1990	paArgs = &Var;
1991	Var.enmType = DBGCVAR_TYPE_NUMBER;
1992	Var.u.u64Number = 0;
1993	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1994	Var.u64Range = 1024;
1995	}
1996
1997	/*
1998	* Process the arguments.
1999	*/
2000	for (unsigned i = 0; i < cArgs; i++)
2001	{
2002	/*
2003	* Retrieve the selector value from the argument.
2004	* The parser may confuse pointers and numbers if more than one
2005	* argument is given, that that into account.
2006	*/
2007	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[i].enmType));
2008	uint64_t u64;
2009	unsigned cSels = 1;
2010	switch (paArgs[i].enmType)
2011	{
2012	case DBGCVAR_TYPE_NUMBER:
2013	u64 = paArgs[i].u.u64Number;
2014	if (paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE)
2015	cSels = RT_MIN(paArgs[i].u64Range, 1024);
2016	break;
2017	case DBGCVAR_TYPE_GC_FAR: u64 = paArgs[i].u.GCFar.sel; break;
2018	case DBGCVAR_TYPE_GC_FLAT: u64 = paArgs[i].u.GCFlat; break;
2019	case DBGCVAR_TYPE_GC_PHYS: u64 = paArgs[i].u.GCPhys; break;
2020	case DBGCVAR_TYPE_HC_FLAT: u64 = (uintptr_t)paArgs[i].u.pvHCFlat; break;
2021	case DBGCVAR_TYPE_HC_PHYS: u64 = paArgs[i].u.HCPhys; break;
2022	default: u64 = _64K; break;
2023	}
2024	if (u64 < _64K)
2025	{
2026	unsigned Sel = (RTSEL)u64;
2027
2028	/*
2029	* Dump the specified range.
2030	*/
2031	bool fSingle = cSels == 1;
2032	while ( cSels-- > 0
2033	&& Sel < _64K)
2034	{
2035	DBGFSELINFO SelInfo;
2036	int rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, Sel \| SelTable, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
2037	if (RT_SUCCESS(rc))
2038	{
2039	if (SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE)
2040	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x RealM Bas=%04x Lim=%04x\n",
2041	Sel, (unsigned)SelInfo.GCPtrBase, (unsigned)SelInfo.cbLimit);
2042	else if ( fAll
2043	\|\| fSingle
2044	\|\| SelInfo.u.Raw.Gen.u1Present)
2045	{
2046	if (enmMode == CPUMMODE_PROTECTED)
2047	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &SelInfo.u.Raw, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER));
2048	else
2049	{
2050	bool fDblSkip = false;
2051	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &SelInfo.u.Raw64, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER), &fDblSkip);
2052	if (fDblSkip)
2053	Sel += 4;
2054	}
2055	}
2056	}
2057	else
2058	{
2059	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %Rrc\n", Sel, rc);
2060	if (!fAll)
2061	return rc;
2062	}
2063	if (RT_FAILURE(rc))
2064	return rc;
2065
2066	/* next */
2067	Sel += 8;
2068	}
2069	}
2070	else
2071	DBGCCmdHlpPrintf(pCmdHlp, "error: %llx is out of bounds\n", u64);
2072	}
2073
2074	return VINF_SUCCESS;
2075	}
2076
2077
2078	/**
2079	* @interface_method_impl{FNDBCCMD, The 'di' and 'dia' commands.}
2080	*/
2081	static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2082	{
2083	/*
2084	* Validate input.
2085	*/
2086	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2087
2088	/*
2089	* Establish some stuff like the current IDTR and CPU mode,
2090	* and fix a default parameter.
2091	*/
2092	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2093	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
2094	uint16_t cbLimit;
2095	RTGCUINTPTR GCPtrBase = CPUMGetGuestIDTR(pVCpu, &cbLimit);
2096	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2097	unsigned cbEntry;
2098	switch (enmMode)
2099	{
2100	case CPUMMODE_REAL: cbEntry = sizeof(RTFAR16); break;
2101	case CPUMMODE_PROTECTED: cbEntry = sizeof(X86DESC); break;
2102	case CPUMMODE_LONG: cbEntry = sizeof(X86DESC64); break;
2103	default:
2104	return DBGCCmdHlpPrintf(pCmdHlp, "error: Invalid CPU mode %d.\n", enmMode);
2105	}
2106
2107	bool fAll = pCmd->pszCmd[2] == 'a';
2108	DBGCVAR Var;
2109	if (!cArgs)
2110	{
2111	cArgs = 1;
2112	paArgs = &Var;
2113	Var.enmType = DBGCVAR_TYPE_NUMBER;
2114	Var.u.u64Number = 0;
2115	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2116	Var.u64Range = 256;
2117	}
2118
2119	/*
2120	* Process the arguments.
2121	*/
2122	for (unsigned i = 0; i < cArgs; i++)
2123	{
2124	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER);
2125	if (paArgs[i].u.u64Number < 256)
2126	{
2127	RTGCUINTPTR iInt = (RTGCUINTPTR)paArgs[i].u.u64Number;
2128	unsigned cInts = paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE
2129	? paArgs[i].u64Range
2130	: 1;
2131	bool fSingle = cInts == 1;
2132	while ( cInts-- > 0
2133	&& iInt < 256)
2134	{
2135	/*
2136	* Try read it.
2137	*/
2138	union
2139	{
2140	RTFAR16 Real;
2141	X86DESC Prot;
2142	X86DESC64 Long;
2143	} u;
2144	if (iInt * cbEntry + (cbEntry - 1) > cbLimit)
2145	{
2146	DBGCCmdHlpPrintf(pCmdHlp, "%04x not within the IDT\n", (unsigned)iInt);
2147	if (!fAll && !fSingle)
2148	return VINF_SUCCESS;
2149	}
2150	DBGCVAR AddrVar;
2151	AddrVar.enmType = DBGCVAR_TYPE_GC_FLAT;
2152	AddrVar.u.GCFlat = GCPtrBase + iInt * cbEntry;
2153	AddrVar.enmRangeType = DBGCVAR_RANGE_NONE;
2154	int rc = pCmdHlp->pfnMemRead(pCmdHlp, &u, cbEntry, &AddrVar, NULL);
2155	if (RT_FAILURE(rc))
2156	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading IDT entry %#04x.\n", (unsigned)iInt);
2157
2158	/*
2159	* Display it.
2160	*/
2161	switch (enmMode)
2162	{
2163	case CPUMMODE_REAL:
2164	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %RTfp16\n", (unsigned)iInt, u.Real);
2165	/** @todo resolve 16:16 IDTE to a symbol */
2166	break;
2167	case CPUMMODE_PROTECTED:
2168	if (fAll \|\| fSingle \|\| u.Prot.Gen.u1Present)
2169	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &u.Prot, iInt, false);
2170	break;
2171	case CPUMMODE_LONG:
2172	if (fAll \|\| fSingle \|\| u.Long.Gen.u1Present)
2173	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &u.Long, iInt, false, NULL);
2174	break;
2175	default: break; /* to shut up gcc */
2176	}
2177	if (RT_FAILURE(rc))
2178	return rc;
2179
2180	/* next */
2181	iInt++;
2182	}
2183	}
2184	else
2185	DBGCCmdHlpPrintf(pCmdHlp, "error: %llx is out of bounds (max 256)\n", paArgs[i].u.u64Number);
2186	}
2187
2188	return VINF_SUCCESS;
2189	}
2190
2191
2192	/**
2193	* @interface_method_impl{FNDBCCMD, The 'da', 'dq', 'dd', 'dw' and 'db'
2194	* commands.}
2195	*/
2196	static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2197	{
2198	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2199
2200	/*
2201	* Validate input.
2202	*/
2203	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2204	if (cArgs == 1)
2205	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2206	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2207
2208	/*
2209	* Figure out the element size.
2210	*/
2211	unsigned cbElement;
2212	bool fAscii = false;
2213	switch (pCmd->pszCmd[1])
2214	{
2215	default:
2216	case 'b': cbElement = 1; break;
2217	case 'w': cbElement = 2; break;
2218	case 'd': cbElement = 4; break;
2219	case 'q': cbElement = 8; break;
2220	case 'a':
2221	cbElement = 1;
2222	fAscii = true;
2223	break;
2224	case '\0':
2225	fAscii = !!(pDbgc->cbDumpElement & 0x80000000);
2226	cbElement = pDbgc->cbDumpElement & 0x7fffffff;
2227	if (!cbElement)
2228	cbElement = 1;
2229	break;
2230	}
2231
2232	/*
2233	* Find address.
2234	*/
2235	if (!cArgs)
2236	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_NONE;
2237	else
2238	pDbgc->DumpPos = paArgs[0];
2239
2240	/*
2241	* Range.
2242	*/
2243	switch (pDbgc->DumpPos.enmRangeType)
2244	{
2245	case DBGCVAR_RANGE_NONE:
2246	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2247	pDbgc->DumpPos.u64Range = 0x60;
2248	break;
2249
2250	case DBGCVAR_RANGE_ELEMENTS:
2251	if (pDbgc->DumpPos.u64Range > 2048)
2252	return DBGCCmdHlpPrintf(pCmdHlp, "error: Too many elements requested. Max is 2048 elements.\n");
2253	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2254	pDbgc->DumpPos.u64Range = (cbElement ? cbElement : 1) * pDbgc->DumpPos.u64Range;
2255	break;
2256
2257	case DBGCVAR_RANGE_BYTES:
2258	if (pDbgc->DumpPos.u64Range > 65536)
2259	return DBGCCmdHlpPrintf(pCmdHlp, "error: The requested range is too big. Max is 64KB.\n");
2260	break;
2261
2262	default:
2263	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: Unknown range type %d.\n", pDbgc->DumpPos.enmRangeType);
2264	}
2265
2266	pDbgc->pLastPos = &pDbgc->DumpPos;
2267
2268	/*
2269	* Do the dumping.
2270	*/
2271	pDbgc->cbDumpElement = cbElement \| (fAscii << 31);
2272	int cbLeft = (int)pDbgc->DumpPos.u64Range;
2273	uint8_t u8Prev = '\0';
2274	for (;;)
2275	{
2276	/*
2277	* Read memory.
2278	*/
2279	char achBuffer[16];
2280	size_t cbReq = RT_MIN((int)sizeof(achBuffer), cbLeft);
2281	size_t cb = RT_MIN((int)sizeof(achBuffer), cbLeft);
2282	int rc = pCmdHlp->pfnMemRead(pCmdHlp, &achBuffer, cbReq, &pDbgc->DumpPos, &cb);
2283	if (RT_FAILURE(rc))
2284	{
2285	if (u8Prev && u8Prev != '\n')
2286	DBGCCmdHlpPrintf(pCmdHlp, "\n");
2287	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading memory at %DV.\n", &pDbgc->DumpPos);
2288	}
2289
2290	/*
2291	* Display it.
2292	*/
2293	memset(&achBuffer[cb], 0, sizeof(achBuffer) - cb);
2294	if (!fAscii)
2295	{
2296	DBGCCmdHlpPrintf(pCmdHlp, "%DV:", &pDbgc->DumpPos);
2297	unsigned i;
2298	for (i = 0; i < cb; i += cbElement)
2299	{
2300	const char *pszSpace = " ";
2301	if (cbElement <= 2 && i == 8 && !fAscii)
2302	pszSpace = "-";
2303	switch (cbElement)
2304	{
2305	case 1: DBGCCmdHlpPrintf(pCmdHlp, "%s%02x", pszSpace, (uint8_t )&achBuffer[i]); break;
2306	case 2: DBGCCmdHlpPrintf(pCmdHlp, "%s%04x", pszSpace, (uint16_t )&achBuffer[i]); break;
2307	case 4: DBGCCmdHlpPrintf(pCmdHlp, "%s%08x", pszSpace, (uint32_t )&achBuffer[i]); break;
2308	case 8: DBGCCmdHlpPrintf(pCmdHlp, "%s%016llx", pszSpace, (uint64_t )&achBuffer[i]); break;
2309	}
2310	}
2311
2312	/* chars column */
2313	if (pDbgc->cbDumpElement == 1)
2314	{
2315	while (i++ < sizeof(achBuffer))
2316	DBGCCmdHlpPrintf(pCmdHlp, " ");
2317	DBGCCmdHlpPrintf(pCmdHlp, " ");
2318	for (i = 0; i < cb; i += cbElement)
2319	{
2320	uint8_t u8 = (uint8_t )&achBuffer[i];
2321	if (RT_C_IS_PRINT(u8) && u8 < 127 && u8 >= 32)
2322	DBGCCmdHlpPrintf(pCmdHlp, "%c", u8);
2323	else
2324	DBGCCmdHlpPrintf(pCmdHlp, ".");
2325	}
2326	}
2327	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2328	}
2329	else
2330	{
2331	/*
2332	* We print up to the first zero and stop there.
2333	* Only printables + '\t' and '\n' are printed.
2334	*/
2335	if (!u8Prev)
2336	DBGCCmdHlpPrintf(pCmdHlp, "%DV:\n", &pDbgc->DumpPos);
2337	uint8_t u8 = '\0';
2338	unsigned i;
2339	for (i = 0; i < cb; i++)
2340	{
2341	u8Prev = u8;
2342	u8 = (uint8_t )&achBuffer[i];
2343	if ( u8 < 127
2344	&& ( (RT_C_IS_PRINT(u8) && u8 >= 32)
2345	\|\| u8 == '\t'
2346	\|\| u8 == '\n'))
2347	DBGCCmdHlpPrintf(pCmdHlp, "%c", u8);
2348	else if (!u8)
2349	break;
2350	else
2351	DBGCCmdHlpPrintf(pCmdHlp, "\\x%x", u8);
2352	}
2353	if (u8 == '\0')
2354	cb = cbLeft = i + 1;
2355	if (cbLeft - cb <= 0 && u8Prev != '\n')
2356	DBGCCmdHlpPrintf(pCmdHlp, "\n");
2357	}
2358
2359	/*
2360	* Advance
2361	*/
2362	cbLeft -= (int)cb;
2363	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DumpPos, "(%Dv) + %x", &pDbgc->DumpPos, cb);
2364	if (RT_FAILURE(rc))
2365	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DumpPos, cb);
2366	if (cbLeft <= 0)
2367	break;
2368	}
2369
2370	NOREF(pCmd);
2371	return VINF_SUCCESS;
2372	}
2373
2374
2375	/**
2376	* Best guess at which paging mode currently applies to the guest
2377	* paging structures.
2378	*
2379	* This have to come up with a decent answer even when the guest
2380	* is in non-paged protected mode or real mode.
2381	*
2382	* @returns cr3.
2383	* @param pDbgc The DBGC instance.
2384	* @param pfPAE Where to store the page address extension indicator.
2385	* @param pfLME Where to store the long mode enabled indicator.
2386	* @param pfPSE Where to store the page size extension indicator.
2387	* @param pfPGE Where to store the page global enabled indicator.
2388	* @param pfNXE Where to store the no-execution enabled indicator.
2389	*/
2390	static RTGCPHYS dbgcGetGuestPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2391	{
2392	PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2393	RTGCUINTREG cr4 = CPUMGetGuestCR4(pVCpu);
2394	*pfPSE = !!(cr4 & X86_CR4_PSE);
2395	*pfPGE = !!(cr4 & X86_CR4_PGE);
2396	if (cr4 & X86_CR4_PAE)
2397	{
2398	*pfPSE = true;
2399	*pfPAE = true;
2400	}
2401	else
2402	*pfPAE = false;
2403
2404	*pfLME = CPUMGetGuestMode(pVCpu) == CPUMMODE_LONG;
2405	pfNXE = false; / GUEST64 GUESTNX */
2406	return CPUMGetGuestCR3(pVCpu);
2407	}
2408
2409
2410	/**
2411	* Determine the shadow paging mode.
2412	*
2413	* @returns cr3.
2414	* @param pDbgc The DBGC instance.
2415	* @param pfPAE Where to store the page address extension indicator.
2416	* @param pfLME Where to store the long mode enabled indicator.
2417	* @param pfPSE Where to store the page size extension indicator.
2418	* @param pfPGE Where to store the page global enabled indicator.
2419	* @param pfNXE Where to store the no-execution enabled indicator.
2420	*/
2421	static RTHCPHYS dbgcGetShadowPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2422	{
2423	PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2424
2425	*pfPSE = true;
2426	*pfPGE = false;
2427	switch (PGMGetShadowMode(pVCpu))
2428	{
2429	default:
2430	case PGMMODE_32_BIT:
2431	pfPAE = pfLME = *pfNXE = false;
2432	break;
2433	case PGMMODE_PAE:
2434	pfLME = pfNXE = false;
2435	*pfPAE = true;
2436	break;
2437	case PGMMODE_PAE_NX:
2438	*pfLME = false;
2439	pfPAE = pfNXE = true;
2440	break;
2441	case PGMMODE_AMD64:
2442	*pfNXE = false;
2443	pfPAE = pfLME = true;
2444	break;
2445	case PGMMODE_AMD64_NX:
2446	pfPAE = pfLME = *pfNXE = true;
2447	break;
2448	}
2449	return PGMGetHyperCR3(pVCpu);
2450	}
2451
2452
2453	/**
2454	* @interface_method_impl{FNDBCCMD, The 'dpd', 'dpda', 'dpdb', 'dpdg' and 'dpdh'
2455	* commands.}
2456	*/
2457	static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2458	{
2459	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2460
2461	/*
2462	* Validate input.
2463	*/
2464	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2465	if (cArgs == 1 && pCmd->pszCmd[3] == 'a')
2466	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2467	if (cArgs == 1 && pCmd->pszCmd[3] != 'a')
2468	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2469	\|\| DBGCVAR_ISPOINTER(paArgs[0].enmType));
2470	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2471
2472	/*
2473	* Guest or shadow page directories? Get the paging parameters.
2474	*/
2475	bool fGuest = pCmd->pszCmd[3] != 'h';
2476	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2477	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2478	? pDbgc->fRegCtxGuest
2479	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2480
2481	bool fPAE, fLME, fPSE, fPGE, fNXE;
2482	uint64_t cr3 = fGuest
2483	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2484	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2485	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2486
2487	/*
2488	* Setup default argument if none was specified.
2489	* Fix address / index confusion.
2490	*/
2491	DBGCVAR VarDefault;
2492	if (!cArgs)
2493	{
2494	if (pCmd->pszCmd[3] == 'a')
2495	{
2496	if (fLME \|\| fPAE)
2497	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");
2498	if (fGuest)
2499	DBGCVAR_INIT_GC_PHYS(&VarDefault, cr3);
2500	else
2501	DBGCVAR_INIT_HC_PHYS(&VarDefault, cr3);
2502	}
2503	else
2504	DBGCVAR_INIT_GC_FLAT(&VarDefault, 0);
2505	paArgs = &VarDefault;
2506	cArgs = 1;
2507	}
2508	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
2509	{
2510	/* If it's a number (not an address), it's an index, so convert it to an address. */
2511	Assert(pCmd->pszCmd[3] != 'a');
2512	VarDefault = paArgs[0];
2513	if (fPAE)
2514	return DBGCCmdHlpPrintf(pCmdHlp, "PDE indexing is only implemented for 32-bit paging.\n");
2515	if (VarDefault.u.u64Number >= PAGE_SIZE / cbEntry)
2516	return DBGCCmdHlpPrintf(pCmdHlp, "PDE index is out of range [0..%d].\n", PAGE_SIZE / cbEntry - 1);
2517	VarDefault.u.u64Number <<= X86_PD_SHIFT;
2518	VarDefault.enmType = DBGCVAR_TYPE_GC_FLAT;
2519	paArgs = &VarDefault;
2520	}
2521
2522	/*
2523	* Locate the PDE to start displaying at.
2524	*
2525	* The 'dpda' command takes the address of a PDE, while the others are guest
2526	* virtual address which PDEs should be displayed. So, 'dpda' is rather simple
2527	* while the others require us to do all the tedious walking thru the paging
2528	* hierarchy to find the intended PDE.
2529	*/
2530	unsigned iEntry = ~0U; /* The page directory index. ~0U for 'dpta'. */
2531	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PDE (iEntry != ~0U). */
2532	DBGCVAR VarPDEAddr; /* The address of the current PDE. */
2533	unsigned cEntries; /* The number of entries to display. */
2534	unsigned cEntriesMax; /* The max number of entries to display. */
2535	int rc;
2536	if (pCmd->pszCmd[3] == 'a')
2537	{
2538	VarPDEAddr = paArgs[0];
2539	switch (VarPDEAddr.enmRangeType)
2540	{
2541	case DBGCVAR_RANGE_BYTES: cEntries = VarPDEAddr.u64Range / cbEntry; break;
2542	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPDEAddr.u64Range; break;
2543	default: cEntries = 10; break;
2544	}
2545	cEntriesMax = PAGE_SIZE / cbEntry;
2546	}
2547	else
2548	{
2549	/*
2550	* Determine the range.
2551	*/
2552	switch (paArgs[0].enmRangeType)
2553	{
2554	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2555	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2556	default: cEntries = 10; break;
2557	}
2558
2559	/*
2560	* Normalize the input address, it must be a flat GC address.
2561	*/
2562	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2563	if (RT_FAILURE(rc))
2564	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2565	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2566	{
2567	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2568	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2569	}
2570	if (fPAE)
2571	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_PAE_SHIFT) - 1);
2572	else
2573	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_SHIFT) - 1);
2574
2575	/*
2576	* Do the paging walk until we get to the page directory.
2577	*/
2578	DBGCVAR VarCur;
2579	if (fGuest)
2580	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2581	else
2582	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2583	if (fLME)
2584	{
2585	/* Page Map Level 4 Lookup. */
2586	/* Check if it's a valid address first? */
2587	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2588	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2589	X86PML4E Pml4e;
2590	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2591	if (RT_FAILURE(rc))
2592	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2593	if (!Pml4e.n.u1Present)
2594	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2595
2596	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2597	Assert(fPAE);
2598	}
2599	if (fPAE)
2600	{
2601	/* Page directory pointer table. */
2602	X86PDPE Pdpe;
2603	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2604	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2605	if (RT_FAILURE(rc))
2606	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2607	if (!Pdpe.n.u1Present)
2608	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2609
2610	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2611	VarPDEAddr = VarCur;
2612	VarPDEAddr.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2613	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDEPAE);
2614	}
2615	else
2616	{
2617	/* 32-bit legacy - CR3 == page directory. */
2618	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK;
2619	VarPDEAddr = VarCur;
2620	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDE);
2621	}
2622	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2623	}
2624
2625	/* adjust cEntries */
2626	cEntries = RT_MAX(1, cEntries);
2627	cEntries = RT_MIN(cEntries, cEntriesMax);
2628
2629	/*
2630	* The display loop.
2631	*/
2632	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (index %#x):\n" : "%DV:\n",
2633	&VarPDEAddr, iEntry);
2634	do
2635	{
2636	/*
2637	* Read.
2638	*/
2639	X86PDEPAE Pde;
2640	Pde.u = 0;
2641	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, cbEntry, &VarPDEAddr, NULL);
2642	if (RT_FAILURE(rc))
2643	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarPDEAddr);
2644
2645	/*
2646	* Display.
2647	*/
2648	if (iEntry != ~0U)
2649	{
2650	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2651	iEntry++;
2652	}
2653	if (fPSE && Pde.b.u1Size)
2654	DBGCCmdHlpPrintf(pCmdHlp,
2655	fPAE
2656	? "%016llx big phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2657	: "%08llx big phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2658	Pde.u,
2659	Pde.u & X86_PDE_PAE_PG_MASK,
2660	Pde.b.u1Present ? "p " : "np",
2661	Pde.b.u1Write ? "w" : "r",
2662	Pde.b.u1User ? "u" : "s",
2663	Pde.b.u1Accessed ? "a " : "na",
2664	Pde.b.u1Dirty ? "d " : "nd",
2665	Pde.b.u3Available,
2666	Pde.b.u1Global ? (fPGE ? "g" : "G") : " ",
2667	Pde.b.u1WriteThru ? "pwt" : " ",
2668	Pde.b.u1CacheDisable ? "pcd" : " ",
2669	Pde.b.u1PAT ? "pat" : "",
2670	Pde.b.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2671	else
2672	DBGCCmdHlpPrintf(pCmdHlp,
2673	fPAE
2674	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s"
2675	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s",
2676	Pde.u,
2677	Pde.u & X86_PDE_PAE_PG_MASK,
2678	Pde.n.u1Present ? "p " : "np",
2679	Pde.n.u1Write ? "w" : "r",
2680	Pde.n.u1User ? "u" : "s",
2681	Pde.n.u1Accessed ? "a " : "na",
2682	Pde.u & RT_BIT(6) ? "6 " : " ",
2683	Pde.n.u3Available,
2684	Pde.u & RT_BIT(8) ? "8" : " ",
2685	Pde.n.u1WriteThru ? "pwt" : " ",
2686	Pde.n.u1CacheDisable ? "pcd" : " ",
2687	Pde.u & RT_BIT(7) ? "7" : "",
2688	Pde.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2689	if (Pde.u & UINT64_C(0x7fff000000000000))
2690	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pde.u & UINT64_C(0x7fff000000000000)));
2691	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2692	if (RT_FAILURE(rc))
2693	return rc;
2694
2695	/*
2696	* Advance.
2697	*/
2698	VarPDEAddr.u.u64Number += cbEntry;
2699	if (iEntry != ~0U)
2700	VarGCPtr.u.GCFlat += fPAE ? RT_BIT_32(X86_PD_PAE_SHIFT) : RT_BIT_32(X86_PD_SHIFT);
2701	} while (cEntries-- > 0);
2702
2703	return VINF_SUCCESS;
2704	}
2705
2706
2707	/**
2708	* @interface_method_impl{FNDBCCMD, The 'dpdb' command.}
2709	*/
2710	static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2711	{
2712	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2713	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2714	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2715	if (RT_FAILURE(rc1))
2716	return rc1;
2717	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
2718	return rc2;
2719	}
2720
2721
2722	/**
2723	* @interface_method_impl{FNDBCCMD, The 'dph*' commands and main part of 'm'.}
2724	*/
2725	static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2726	{
2727	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2728	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2729
2730	/*
2731	* Figure the context and base flags.
2732	*/
2733	uint32_t fFlags = DBGFPGDMP_FLAGS_PAGE_INFO \| DBGFPGDMP_FLAGS_PRINT_CR3;
2734	if (pCmd->pszCmd[0] == 'm')
2735	fFlags \|= DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW;
2736	else if (pCmd->pszCmd[3] == '\0')
2737	fFlags \|= pDbgc->fRegCtxGuest ? DBGFPGDMP_FLAGS_GUEST : DBGFPGDMP_FLAGS_SHADOW;
2738	else if (pCmd->pszCmd[3] == 'g')
2739	fFlags \|= DBGFPGDMP_FLAGS_GUEST;
2740	else if (pCmd->pszCmd[3] == 'h')
2741	fFlags \|= DBGFPGDMP_FLAGS_SHADOW;
2742	else
2743	AssertFailed();
2744
2745	if (pDbgc->cPagingHierarchyDumps == 0)
2746	fFlags \|= DBGFPGDMP_FLAGS_HEADER;
2747	pDbgc->cPagingHierarchyDumps = (pDbgc->cPagingHierarchyDumps + 1) % 42;
2748
2749	/*
2750	* Get the range.
2751	*/
2752	PCDBGCVAR pRange = cArgs > 0 ? &paArgs[0] : pDbgc->pLastPos;
2753	RTGCPTR GCPtrFirst = NIL_RTGCPTR;
2754	int rc = DBGCCmdHlpVarToFlatAddr(pCmdHlp, pRange, &GCPtrFirst);
2755	if (RT_FAILURE(rc))
2756	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to convert %DV to a flat address: %Rrc", pRange, rc);
2757
2758	uint64_t cbRange;
2759	rc = DBGCCmdHlpVarGetRange(pCmdHlp, pRange, PAGE_SIZE, PAGE_SIZE * 8, &cbRange);
2760	if (RT_FAILURE(rc))
2761	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to obtain the range of %DV: %Rrc", pRange, rc);
2762
2763	RTGCPTR GCPtrLast = RTGCPTR_MAX - GCPtrFirst;
2764	if (cbRange >= GCPtrLast)
2765	GCPtrLast = RTGCPTR_MAX;
2766	else if (!cbRange)
2767	GCPtrLast = GCPtrFirst;
2768	else
2769	GCPtrLast = GCPtrFirst + cbRange - 1;
2770
2771	/*
2772	* Do we have a CR3?
2773	*/
2774	uint64_t cr3 = 0;
2775	if (cArgs > 1)
2776	{
2777	if ((fFlags & (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW)) == (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW))
2778	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No CR3 or mode arguments when dumping both context, please.");
2779	if (paArgs[1].enmType != DBGCVAR_TYPE_NUMBER)
2780	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The CR3 argument is not a number: %DV", &paArgs[1]);
2781	cr3 = paArgs[1].u.u64Number;
2782	}
2783	else
2784	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_CR3;
2785
2786	/*
2787	* Do we have a mode?
2788	*/
2789	if (cArgs > 2)
2790	{
2791	if (paArgs[2].enmType != DBGCVAR_TYPE_STRING)
2792	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The mode argument is not a string: %DV", &paArgs[2]);
2793	static const struct MODETOFLAGS
2794	{
2795	const char *pszName;
2796	uint32_t fFlags;
2797	} s_aModeToFlags[] =
2798	{
2799	{ "ept", DBGFPGDMP_FLAGS_EPT },
2800	{ "legacy", 0 },
2801	{ "legacy-np", DBGFPGDMP_FLAGS_NP },
2802	{ "pse", DBGFPGDMP_FLAGS_PSE },
2803	{ "pse-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_NP },
2804	{ "pae", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE },
2805	{ "pae-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NP },
2806	{ "pae-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE },
2807	{ "pae-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP },
2808	{ "long", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME },
2809	{ "long-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NP },
2810	{ "long-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE },
2811	{ "long-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP }
2812	};
2813	int i = RT_ELEMENTS(s_aModeToFlags);
2814	while (i-- > 0)
2815	if (!strcmp(s_aModeToFlags[i].pszName, paArgs[2].u.pszString))
2816	{
2817	fFlags \|= s_aModeToFlags[i].fFlags;
2818	break;
2819	}
2820	if (i < 0)
2821	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown mode: \"%s\"", paArgs[2].u.pszString);
2822	}
2823	else
2824	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_MODE;
2825
2826	/*
2827	* Call the worker.
2828	*/
2829	rc = DBGFR3PagingDumpEx(pUVM, pDbgc->idCpu, fFlags, cr3, GCPtrFirst, GCPtrLast, 99 /cMaxDepth/,
2830	DBGCCmdHlpGetDbgfOutputHlp(pCmdHlp));
2831	if (RT_FAILURE(rc))
2832	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3PagingDumpEx: %Rrc\n", rc);
2833	return VINF_SUCCESS;
2834	}
2835
2836
2837
2838	/**
2839	* @interface_method_impl{FNDBCCMD, The 'dpg*' commands.}
2840	*/
2841	static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2842	{
2843	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2844
2845	/*
2846	* Validate input.
2847	*/
2848	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1);
2849	if (pCmd->pszCmd[3] == 'a')
2850	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2851	else
2852	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2853	\|\| DBGCVAR_ISPOINTER(paArgs[0].enmType));
2854	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2855
2856	/*
2857	* Guest or shadow page tables? Get the paging parameters.
2858	*/
2859	bool fGuest = pCmd->pszCmd[3] != 'h';
2860	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2861	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2862	? pDbgc->fRegCtxGuest
2863	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2864
2865	bool fPAE, fLME, fPSE, fPGE, fNXE;
2866	uint64_t cr3 = fGuest
2867	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2868	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2869	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2870
2871	/*
2872	* Locate the PTE to start displaying at.
2873	*
2874	* The 'dpta' command takes the address of a PTE, while the others are guest
2875	* virtual address which PTEs should be displayed. So, 'pdta' is rather simple
2876	* while the others require us to do all the tedious walking thru the paging
2877	* hierarchy to find the intended PTE.
2878	*/
2879	unsigned iEntry = ~0U; /* The page table index. ~0U for 'dpta'. */
2880	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PTE (iEntry != ~0U). */
2881	DBGCVAR VarPTEAddr; /* The address of the current PTE. */
2882	unsigned cEntries; /* The number of entries to display. */
2883	unsigned cEntriesMax; /* The max number of entries to display. */
2884	int rc;
2885	if (pCmd->pszCmd[3] == 'a')
2886	{
2887	VarPTEAddr = paArgs[0];
2888	switch (VarPTEAddr.enmRangeType)
2889	{
2890	case DBGCVAR_RANGE_BYTES: cEntries = VarPTEAddr.u64Range / cbEntry; break;
2891	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPTEAddr.u64Range; break;
2892	default: cEntries = 10; break;
2893	}
2894	cEntriesMax = PAGE_SIZE / cbEntry;
2895	}
2896	else
2897	{
2898	/*
2899	* Determine the range.
2900	*/
2901	switch (paArgs[0].enmRangeType)
2902	{
2903	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2904	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2905	default: cEntries = 10; break;
2906	}
2907
2908	/*
2909	* Normalize the input address, it must be a flat GC address.
2910	*/
2911	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2912	if (RT_FAILURE(rc))
2913	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2914	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2915	{
2916	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2917	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2918	}
2919	VarGCPtr.u.GCFlat &= ~(RTGCPTR)PAGE_OFFSET_MASK;
2920
2921	/*
2922	* Do the paging walk until we get to the page table.
2923	*/
2924	DBGCVAR VarCur;
2925	if (fGuest)
2926	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2927	else
2928	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2929	if (fLME)
2930	{
2931	/* Page Map Level 4 Lookup. */
2932	/* Check if it's a valid address first? */
2933	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2934	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2935	X86PML4E Pml4e;
2936	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2937	if (RT_FAILURE(rc))
2938	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2939	if (!Pml4e.n.u1Present)
2940	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2941
2942	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2943	Assert(fPAE);
2944	}
2945	if (fPAE)
2946	{
2947	/* Page directory pointer table. */
2948	X86PDPE Pdpe;
2949	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2950	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2951	if (RT_FAILURE(rc))
2952	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2953	if (!Pdpe.n.u1Present)
2954	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2955
2956	VarCur.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2957
2958	/* Page directory (PAE). */
2959	X86PDEPAE Pde;
2960	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK) * sizeof(Pde);
2961	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
2962	if (RT_FAILURE(rc))
2963	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
2964	if (!Pde.n.u1Present)
2965	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
2966	if (fPSE && Pde.n.u1Size)
2967	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
2968
2969	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
2970	VarPTEAddr = VarCur;
2971	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PAE_PG_MASK;
2972	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTEPAE);
2973	}
2974	else
2975	{
2976	/* Page directory (legacy). */
2977	X86PDE Pde;
2978	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK) * sizeof(Pde);
2979	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
2980	if (RT_FAILURE(rc))
2981	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
2982	if (!Pde.n.u1Present)
2983	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
2984	if (fPSE && Pde.n.u1Size)
2985	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
2986
2987	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_SHIFT) & X86_PT_MASK;
2988	VarPTEAddr = VarCur;
2989	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PG_MASK;
2990	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTE);
2991	}
2992	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2993	}
2994
2995	/* adjust cEntries */
2996	cEntries = RT_MAX(1, cEntries);
2997	cEntries = RT_MIN(cEntries, cEntriesMax);
2998
2999	/*
3000	* The display loop.
3001	*/
3002	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (base %DV / index %#x):\n" : "%DV:\n",
3003	&VarPTEAddr, &VarGCPtr, iEntry);
3004	do
3005	{
3006	/*
3007	* Read.
3008	*/
3009	X86PTEPAE Pte;
3010	Pte.u = 0;
3011	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pte, cbEntry, &VarPTEAddr, NULL);
3012	if (RT_FAILURE(rc))
3013	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PTE memory at %DV.\n", &VarPTEAddr);
3014
3015	/*
3016	* Display.
3017	*/
3018	if (iEntry != ~0U)
3019	{
3020	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
3021	iEntry++;
3022	}
3023	DBGCCmdHlpPrintf(pCmdHlp,
3024	fPAE
3025	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
3026	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
3027	Pte.u,
3028	Pte.u & X86_PTE_PAE_PG_MASK,
3029	Pte.n.u1Present ? "p " : "np",
3030	Pte.n.u1Write ? "w" : "r",
3031	Pte.n.u1User ? "u" : "s",
3032	Pte.n.u1Accessed ? "a " : "na",
3033	Pte.n.u1Dirty ? "d " : "nd",
3034	Pte.n.u3Available,
3035	Pte.n.u1Global ? (fPGE ? "g" : "G") : " ",
3036	Pte.n.u1WriteThru ? "pwt" : " ",
3037	Pte.n.u1CacheDisable ? "pcd" : " ",
3038	Pte.n.u1PAT ? "pat" : " ",
3039	Pte.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " "
3040	);
3041	if (Pte.u & UINT64_C(0x7fff000000000000))
3042	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pte.u & UINT64_C(0x7fff000000000000)));
3043	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3044	if (RT_FAILURE(rc))
3045	return rc;
3046
3047	/*
3048	* Advance.
3049	*/
3050	VarPTEAddr.u.u64Number += cbEntry;
3051	if (iEntry != ~0U)
3052	VarGCPtr.u.GCFlat += PAGE_SIZE;
3053	} while (cEntries-- > 0);
3054
3055	return VINF_SUCCESS;
3056	}
3057
3058
3059	/**
3060	* @interface_method_impl{FNDBCCMD, The 'dptb' command.}
3061	*/
3062	static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3063	{
3064	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3065	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
3066	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
3067	if (RT_FAILURE(rc1))
3068	return rc1;
3069	NOREF(pCmd); NOREF(cArgs);
3070	return rc2;
3071	}
3072
3073
3074	/**
3075	* @interface_method_impl{FNDBCCMD, The 'dt' command.}
3076	*/
3077	static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3078	{
3079	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3080	int rc;
3081
3082	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3083	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
3084	if (cArgs == 1)
3085	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType != DBGCVAR_TYPE_STRING
3086	&& paArgs[0].enmType != DBGCVAR_TYPE_SYMBOL);
3087
3088	/*
3089	* Check if the command indicates the type.
3090	*/
3091	enum { kTss16, kTss32, kTss64, kTssToBeDetermined } enmTssType = kTssToBeDetermined;
3092	if (!strcmp(pCmd->pszCmd, "dt16"))
3093	enmTssType = kTss16;
3094	else if (!strcmp(pCmd->pszCmd, "dt32"))
3095	enmTssType = kTss32;
3096	else if (!strcmp(pCmd->pszCmd, "dt64"))
3097	enmTssType = kTss64;
3098
3099	/*
3100	* We can get a TSS selector (number), a far pointer using a TSS selector, or some kind of TSS pointer.
3101	*/
3102	uint32_t SelTss = UINT32_MAX;
3103	DBGCVAR VarTssAddr;
3104	if (cArgs == 0)
3105	{
3106	/** @todo consider querying the hidden bits instead (missing API). */
3107	uint16_t SelTR;
3108	rc = DBGFR3RegCpuQueryU16(pUVM, pDbgc->idCpu, DBGFREG_TR, &SelTR);
3109	if (RT_FAILURE(rc))
3110	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to query TR, rc=%Rrc\n", rc);
3111	DBGCVAR_INIT_GC_FAR(&VarTssAddr, SelTR, 0);
3112	SelTss = SelTR;
3113	}
3114	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
3115	{
3116	if (paArgs[0].u.u64Number < 0xffff)
3117	DBGCVAR_INIT_GC_FAR(&VarTssAddr, (RTSEL)paArgs[0].u.u64Number, 0);
3118	else
3119	{
3120	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_ELEMENTS)
3121	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Element count doesn't combine with a TSS address.\n");
3122	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, paArgs[0].u.u64Number);
3123	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_BYTES)
3124	{
3125	VarTssAddr.enmRangeType = paArgs[0].enmRangeType;
3126	VarTssAddr.u64Range = paArgs[0].u64Range;
3127	}
3128	}
3129	}
3130	else
3131	VarTssAddr = paArgs[0];
3132
3133	/*
3134	* Deal with TSS:ign by means of the GDT.
3135	*/
3136	if (VarTssAddr.enmType == DBGCVAR_TYPE_GC_FAR)
3137	{
3138	SelTss = VarTssAddr.u.GCFar.sel;
3139	DBGFSELINFO SelInfo;
3140	rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, VarTssAddr.u.GCFar.sel, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
3141	if (RT_FAILURE(rc))
3142	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3SelQueryInfo(,%u,%d,,) -> %Rrc.\n",
3143	pDbgc->idCpu, VarTssAddr.u.GCFar.sel, rc);
3144
3145	if (SelInfo.u.Raw.Gen.u1DescType)
3146	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (!sys)\n", VarTssAddr.u.GCFar.sel);
3147
3148	switch (SelInfo.u.Raw.Gen.u4Type)
3149	{
3150	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
3151	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
3152	if (enmTssType == kTssToBeDetermined)
3153	enmTssType = kTss16;
3154	break;
3155
3156	case X86_SEL_TYPE_SYS_386_TSS_BUSY: /* AMD64 too */
3157	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
3158	if (enmTssType == kTssToBeDetermined)
3159	enmTssType = SelInfo.fFlags & DBGFSELINFO_FLAGS_LONG_MODE ? kTss64 : kTss32;
3160	break;
3161
3162	default:
3163	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (type=%x)\n",
3164	VarTssAddr.u.GCFar.sel, SelInfo.u.Raw.Gen.u4Type);
3165	}
3166
3167	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, SelInfo.GCPtrBase);
3168	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, RT_MAX(SelInfo.cbLimit + 1, SelInfo.cbLimit));
3169	}
3170
3171	/*
3172	* Determine the TSS type if none is currently given.
3173	*/
3174	if (enmTssType == kTssToBeDetermined)
3175	{
3176	if ( VarTssAddr.u64Range > 0
3177	&& VarTssAddr.u64Range < sizeof(X86TSS32) - 4)
3178	enmTssType = kTss16;
3179	else
3180	{
3181	uint64_t uEfer;
3182	rc = DBGFR3RegCpuQueryU64(pUVM, pDbgc->idCpu, DBGFREG_MSR_K6_EFER, &uEfer);
3183	if ( RT_FAILURE(rc)
3184	\|\| !(uEfer & MSR_K6_EFER_LMA) )
3185	enmTssType = kTss32;
3186	else
3187	enmTssType = kTss64;
3188	}
3189	}
3190
3191	/*
3192	* Figure the min/max sizes.
3193	* ASSUMES max TSS size is 64 KB.
3194	*/
3195	uint32_t cbTssMin;
3196	uint32_t cbTssMax;
3197	switch (enmTssType)
3198	{
3199	case kTss16:
3200	cbTssMin = cbTssMax = sizeof(X86TSS16);
3201	break;
3202	case kTss32:
3203	cbTssMin = RT_OFFSETOF(X86TSS32, IntRedirBitmap);
3204	cbTssMax = _64K;
3205	break;
3206	case kTss64:
3207	cbTssMin = RT_OFFSETOF(X86TSS64, IntRedirBitmap);
3208	cbTssMax = _64K;
3209	break;
3210	default:
3211	AssertFailedReturn(VERR_INTERNAL_ERROR);
3212	}
3213	uint32_t cbTss = VarTssAddr.enmRangeType == DBGCVAR_RANGE_BYTES ? (uint32_t)VarTssAddr.u64Range : 0;
3214	if (cbTss == 0)
3215	cbTss = cbTssMin;
3216	else if (cbTss < cbTssMin)
3217	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Minimum TSS size is %u bytes, you specified %llu (%llx) bytes.\n",
3218	cbTssMin, VarTssAddr.u64Range, VarTssAddr.u64Range);
3219	else if (cbTss > cbTssMax)
3220	cbTss = cbTssMax;
3221	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, cbTss);
3222
3223	/*
3224	* Read the TSS into a temporary buffer.
3225	*/
3226	uint8_t abBuf[_64K];
3227	size_t cbTssRead;
3228	rc = DBGCCmdHlpMemRead(pCmdHlp, abBuf, cbTss, &VarTssAddr, &cbTssRead);
3229	if (RT_FAILURE(rc))
3230	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read TSS at %Dv: %Rrc\n", &VarTssAddr, rc);
3231	if (cbTssRead < cbTssMin)
3232	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read essential parts of the TSS (read %zu, min %zu).\n",
3233	cbTssRead, cbTssMin);
3234	if (cbTssRead < cbTss)
3235	memset(&abBuf[cbTssRead], 0xff, cbTss - cbTssRead);
3236
3237
3238	/*
3239	* Format the TSS.
3240	*/
3241	uint16_t offIoBitmap;
3242	switch (enmTssType)
3243	{
3244	case kTss16:
3245	{
3246	PCX86TSS16 pTss = (PCX86TSS16)&abBuf[0];
3247	if (SelTss != UINT32_MAX)
3248	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS16 at %Dv\n", SelTss, &VarTssAddr);
3249	else
3250	DBGCCmdHlpPrintf(pCmdHlp, "TSS16 at %Dv\n", &VarTssAddr);
3251	DBGCCmdHlpPrintf(pCmdHlp,
3252	"ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x\n"
3253	"ip=%04x sp=%04x bp=%04x\n"
3254	"cs=%04x ss=%04x ds=%04x es=%04x flags=%04x\n"
3255	"ss:sp0=%04x:%04x ss:sp1=%04x:%04x ss:sp2=%04x:%04x\n"
3256	"prev=%04x ldtr=%04x\n"
3257	,
3258	pTss->ax, pTss->bx, pTss->cx, pTss->dx, pTss->si, pTss->di,
3259	pTss->ip, pTss->sp, pTss->bp,
3260	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->flags,
3261	pTss->ss0, pTss->sp0, pTss->ss1, pTss->sp1, pTss->ss2, pTss->sp2,
3262	pTss->selPrev, pTss->selLdt);
3263	if (pTss->cs != 0)
3264	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%04x L 0", pTss->cs, pTss->ip);
3265	offIoBitmap = 0;
3266	break;
3267	}
3268
3269	case kTss32:
3270	{
3271	PCX86TSS32 pTss = (PCX86TSS32)&abBuf[0];
3272	if (SelTss != UINT32_MAX)
3273	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS32 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3274	else
3275	DBGCCmdHlpPrintf(pCmdHlp, "TSS32 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3276	DBGCCmdHlpPrintf(pCmdHlp,
3277	"eax=%08x bx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
3278	"eip=%08x esp=%08x ebp=%08x\n"
3279	"cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x eflags=%08x\n"
3280	"ss:esp0=%04x:%08x ss:esp1=%04x:%08x ss:esp2=%04x:%08x\n"
3281	"prev=%04x ldtr=%04x cr3=%08x debug=%u iomap=%04x\n"
3282	,
3283	pTss->eax, pTss->ebx, pTss->ecx, pTss->edx, pTss->esi, pTss->edi,
3284	pTss->eip, pTss->esp, pTss->ebp,
3285	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->fs, pTss->gs, pTss->eflags,
3286	pTss->ss0, pTss->esp0, pTss->ss1, pTss->esp1, pTss->ss2, pTss->esp2,
3287	pTss->selPrev, pTss->selLdt, pTss->cr3, pTss->fDebugTrap, pTss->offIoBitmap);
3288	if (pTss->cs != 0)
3289	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%08x L 0", pTss->cs, pTss->eip);
3290	offIoBitmap = pTss->offIoBitmap;
3291	break;
3292	}
3293
3294	case kTss64:
3295	{
3296	PCX86TSS64 pTss = (PCX86TSS64)&abBuf[0];
3297	if (SelTss != UINT32_MAX)
3298	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS64 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3299	else
3300	DBGCCmdHlpPrintf(pCmdHlp, "TSS64 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3301	DBGCCmdHlpPrintf(pCmdHlp,
3302	"rsp0=%016RX16 rsp1=%016RX16 rsp2=%016RX16\n"
3303	"ist1=%016RX16 ist2=%016RX16\n"
3304	"ist3=%016RX16 ist4=%016RX16\n"
3305	"ist5=%016RX16 ist6=%016RX16\n"
3306	"ist7=%016RX16 iomap=%04x\n"
3307	,
3308	pTss->rsp0, pTss->rsp1, pTss->rsp2,
3309	pTss->ist1, pTss->ist2,
3310	pTss->ist3, pTss->ist4,
3311	pTss->ist5, pTss->ist6,
3312	pTss->ist7, pTss->offIoBitmap);
3313	offIoBitmap = pTss->offIoBitmap;
3314	break;
3315	}
3316
3317	default:
3318	AssertFailedReturn(VERR_INTERNAL_ERROR);
3319	}
3320
3321	/*
3322	* Dump the interrupt redirection bitmap.
3323	*/
3324	if (enmTssType != kTss16)
3325	{
3326	if ( offIoBitmap > cbTssMin
3327	&& offIoBitmap < cbTss) /** @todo check exactly what the edge cases are here. */
3328	{
3329	if (offIoBitmap - cbTssMin >= 32)
3330	{
3331	DBGCCmdHlpPrintf(pCmdHlp, "Interrupt redirection:\n");
3332	uint8_t const *pbIntRedirBitmap = &abBuf[offIoBitmap - 32];
3333	uint32_t iStart = 0;
3334	bool fPrev = ASMBitTest(pbIntRedirBitmap, 0); /* LE/BE issue */
3335	for (uint32_t i = 0; i < 256; i++)
3336	{
3337	bool fThis = ASMBitTest(pbIntRedirBitmap, i);
3338	if (fThis != fPrev)
3339	{
3340	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, i - 1, fPrev ? "Protected mode" : "Redirected");
3341	fPrev = fThis;
3342	iStart = i;
3343	}
3344	}
3345	if (iStart != 255)
3346	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, 255, fPrev ? "Protected mode" : "Redirected");
3347	}
3348	else
3349	DBGCCmdHlpPrintf(pCmdHlp, "Invalid interrupt redirection bitmap size: %u (%#x), expected 32 bytes.\n",
3350	offIoBitmap - cbTssMin, offIoBitmap - cbTssMin);
3351	}
3352	else if (offIoBitmap > 0)
3353	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3354	else
3355	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap\n");
3356	}
3357
3358	/*
3359	* Dump the I/O permission bitmap if present. The IOPM cannot start below offset 0x64
3360	* (that applies to both 32-bit and 64-bit TSSs since their size is the same).
3361	*/
3362	if (enmTssType != kTss16)
3363	{
3364	if (offIoBitmap < cbTss && offIoBitmap >= 0x64)
3365	{
3366	uint32_t cPorts = RT_MIN((cbTss - offIoBitmap) * 8, _64K);
3367	DBGCVAR VarAddr;
3368	DBGCCmdHlpEval(pCmdHlp, &VarAddr, "%DV + %#x", &VarTssAddr, offIoBitmap);
3369	DBGCCmdHlpPrintf(pCmdHlp, "I/O bitmap at %DV - %#x ports:\n", &VarAddr, cPorts);
3370
3371	uint8_t const *pbIoBitmap = &abBuf[offIoBitmap];
3372	uint32_t iStart = 0;
3373	bool fPrev = ASMBitTest(pbIoBitmap, 0);
3374	uint32_t cLine = 0;
3375	for (uint32_t i = 1; i < cPorts; i++)
3376	{
3377	bool fThis = ASMBitTest(pbIoBitmap, i);
3378	if (fThis != fPrev)
3379	{
3380	cLine++;
3381	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s%s", iStart, i-1,
3382	fPrev ? "GP" : "OK", (cLine % 6) == 0 ? "\n" : " ");
3383	fPrev = fThis;
3384	iStart = i;
3385	}
3386	}
3387	if (iStart != _64K-1)
3388	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s\n", iStart, _64K-1, fPrev ? "GP" : "OK");
3389	}
3390	else if (offIoBitmap > 0)
3391	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3392	else
3393	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap\n");
3394	}
3395
3396	return VINF_SUCCESS;
3397	}
3398
3399
3400	/**
3401	* @interface_method_impl{FNDBCCMD, The 'm' command.}
3402	*/
3403	static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3404	{
3405	DBGCCmdHlpPrintf(pCmdHlp, "Address: %DV\n", &paArgs[0]);
3406	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3407	return dbgcCmdDumpPageHierarchy(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
3408	}
3409
3410
3411	/**
3412	* Converts one or more variables into a byte buffer for a
3413	* given unit size.
3414	*
3415	* @returns VBox status codes:
3416	* @retval VERR_TOO_MUCH_DATA if the buffer is too small, bitched.
3417	* @retval VERR_INTERNAL_ERROR on bad variable type, bitched.
3418	* @retval VINF_SUCCESS on success.
3419	*
3420	* @param pvBuf The buffer to convert into.
3421	* @param pcbBuf The buffer size on input. The size of the result on output.
3422	* @param cbUnit The unit size to apply when converting.
3423	* The high bit is used to indicate unicode string.
3424	* @param paVars The array of variables to convert.
3425	* @param cVars The number of variables.
3426	*/
3427	int dbgcVarsToBytes(PDBGCCMDHLP pCmdHlp, void pvBuf, uint32_t pcbBuf, size_t cbUnit, PCDBGCVAR paVars, unsigned cVars)
3428	{
3429	union
3430	{
3431	uint8_t *pu8;
3432	uint16_t *pu16;
3433	uint32_t *pu32;
3434	uint64_t *pu64;
3435	} u, uEnd;
3436	u.pu8 = (uint8_t *)pvBuf;
3437	uEnd.pu8 = u.pu8 + *pcbBuf;
3438
3439	unsigned i;
3440	for (i = 0; i < cVars && u.pu8 < uEnd.pu8; i++)
3441	{
3442	switch (paVars[i].enmType)
3443	{
3444	case DBGCVAR_TYPE_GC_FAR:
3445	case DBGCVAR_TYPE_GC_FLAT:
3446	case DBGCVAR_TYPE_GC_PHYS:
3447	case DBGCVAR_TYPE_HC_FLAT:
3448	case DBGCVAR_TYPE_HC_PHYS:
3449	case DBGCVAR_TYPE_NUMBER:
3450	{
3451	uint64_t u64 = paVars[i].u.u64Number;
3452	switch (cbUnit & 0x1f)
3453	{
3454	case 1:
3455	do
3456	{
3457	*u.pu8++ = u64;
3458	u64 >>= 8;
3459	} while (u64);
3460	break;
3461	case 2:
3462	do
3463	{
3464	*u.pu16++ = u64;
3465	u64 >>= 16;
3466	} while (u64);
3467	break;
3468	case 4:
3469	*u.pu32++ = u64;
3470	u64 >>= 32;
3471	if (u64)
3472	*u.pu32++ = u64;
3473	break;
3474	case 8:
3475	*u.pu64++ = u64;
3476	break;
3477	}
3478	break;
3479	}
3480
3481	case DBGCVAR_TYPE_STRING:
3482	case DBGCVAR_TYPE_SYMBOL:
3483	{
3484	const char *psz = paVars[i].u.pszString;
3485	size_t cbString = strlen(psz);
3486	if (cbUnit & RT_BIT_32(31))
3487	{
3488	/* Explode char to unit. */
3489	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8) * (cbUnit & 0x1f))
3490	{
3491	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3492	return VERR_TOO_MUCH_DATA;
3493	}
3494	while (*psz)
3495	{
3496	switch (cbUnit & 0x1f)
3497	{
3498	case 1: u.pu8++ = psz; break;
3499	case 2: u.pu16++ = psz; break;
3500	case 4: u.pu32++ = psz; break;
3501	case 8: u.pu64++ = psz; break;
3502	}
3503	psz++;
3504	}
3505	}
3506	else
3507	{
3508	/* Raw copy with zero padding if the size isn't aligned. */
3509	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8))
3510	{
3511	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3512	return VERR_TOO_MUCH_DATA;
3513	}
3514
3515	size_t cbCopy = cbString & ~(cbUnit - 1);
3516	memcpy(u.pu8, psz, cbCopy);
3517	u.pu8 += cbCopy;
3518	psz += cbCopy;
3519
3520	size_t cbReminder = cbString & (cbUnit - 1);
3521	if (cbReminder)
3522	{
3523	memcpy(u.pu8, psz, cbString & (cbUnit - 1));
3524	memset(u.pu8 + cbReminder, 0, cbUnit - cbReminder);
3525	u.pu8 += cbUnit;
3526	}
3527	}
3528	break;
3529	}
3530
3531	default:
3532	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3533	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INTERNAL_ERROR,
3534	"i=%d enmType=%d\n", i, paVars[i].enmType);
3535	return VERR_INTERNAL_ERROR;
3536	}
3537	}
3538	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3539	if (i != cVars)
3540	{
3541	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3542	return VERR_TOO_MUCH_DATA;
3543	}
3544	return VINF_SUCCESS;
3545	}
3546
3547
3548	/**
3549	* @interface_method_impl{FNDBCCMD, The 'eb', 'ew', 'ed' and 'eq' commands.}
3550	*/
3551	static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3552	{
3553	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3554	unsigned iArg;
3555
3556	/*
3557	* Validate input.
3558	*/
3559	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2);
3560	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
3561	for (iArg = 1; iArg < cArgs; iArg++)
3562	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER);
3563	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3564
3565	/*
3566	* Figure out the element size.
3567	*/
3568	unsigned cbElement;
3569	switch (pCmd->pszCmd[1])
3570	{
3571	default:
3572	case 'b': cbElement = 1; break;
3573	case 'w': cbElement = 2; break;
3574	case 'd': cbElement = 4; break;
3575	case 'q': cbElement = 8; break;
3576	}
3577
3578	/*
3579	* Do setting.
3580	*/
3581	DBGCVAR Addr = paArgs[0];
3582	for (iArg = 1;;)
3583	{
3584	size_t cbWritten;
3585	int rc = pCmdHlp->pfnMemWrite(pCmdHlp, &paArgs[iArg].u, cbElement, &Addr, &cbWritten);
3586	if (RT_FAILURE(rc))
3587	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Writing memory at %DV.\n", &Addr);
3588	if (cbWritten != cbElement)
3589	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Only wrote %u out of %u bytes!\n", cbWritten, cbElement);
3590
3591	/* advance. */
3592	iArg++;
3593	if (iArg >= cArgs)
3594	break;
3595	rc = DBGCCmdHlpEval(pCmdHlp, &Addr, "%Dv + %#x", &Addr, cbElement);
3596	if (RT_FAILURE(rc))
3597	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3598	}
3599
3600	return VINF_SUCCESS;
3601	}
3602
3603
3604	/**
3605	* Executes the search.
3606	*
3607	* @returns VBox status code.
3608	* @param pCmdHlp The command helpers.
3609	* @param pUVM The user mode VM handle.
3610	* @param pAddress The address to start searching from. (undefined on output)
3611	* @param cbRange The address range to search. Must not wrap.
3612	* @param pabBytes The byte pattern to search for.
3613	* @param cbBytes The size of the pattern.
3614	* @param cbUnit The search unit.
3615	* @param cMaxHits The max number of hits.
3616	* @param pResult Where to store the result if it's a function invocation.
3617	*/
3618	static int dbgcCmdWorkerSearchMemDoIt(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGFADDRESS pAddress, RTGCUINTPTR cbRange,
3619	const uint8_t *pabBytes, uint32_t cbBytes,
3620	uint32_t cbUnit, uint64_t cMaxHits, PDBGCVAR pResult)
3621	{
3622	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3623
3624	/*
3625	* Do the search.
3626	*/
3627	uint64_t cHits = 0;
3628	for (;;)
3629	{
3630	/* search */
3631	DBGFADDRESS HitAddress;
3632	int rc = DBGFR3MemScan(pUVM, pDbgc->idCpu, pAddress, cbRange, 1, pabBytes, cbBytes, &HitAddress);
3633	if (RT_FAILURE(rc))
3634	{
3635	if (rc != VERR_DBGF_MEM_NOT_FOUND)
3636	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3MemScan\n");
3637
3638	/* update the current address so we can save it (later). */
3639	pAddress->off += cbRange;
3640	pAddress->FlatPtr += cbRange;
3641	cbRange = 0;
3642	break;
3643	}
3644
3645	/* report result */
3646	DBGCVAR VarCur;
3647	rc = DBGCCmdHlpVarFromDbgfAddr(pCmdHlp, &HitAddress, &VarCur);
3648	if (RT_FAILURE(rc))
3649	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGCCmdHlpVarFromDbgfAddr\n");
3650	if (!pResult)
3651	pCmdHlp->pfnExec(pCmdHlp, "db %DV LB 10", &VarCur);
3652	else
3653	DBGCVAR_ASSIGN(pResult, &VarCur);
3654
3655	/* advance */
3656	cbRange -= HitAddress.FlatPtr - pAddress->FlatPtr;
3657	*pAddress = HitAddress;
3658	pAddress->FlatPtr += cbBytes;
3659	pAddress->off += cbBytes;
3660	if (cbRange <= cbBytes)
3661	{
3662	cbRange = 0;
3663	break;
3664	}
3665	cbRange -= cbBytes;
3666
3667	if (++cHits >= cMaxHits)
3668	{
3669	/// @todo save the search.
3670	break;
3671	}
3672	}
3673
3674	/*
3675	* Save the search so we can resume it...
3676	*/
3677	if (pDbgc->abSearch != pabBytes)
3678	{
3679	memcpy(pDbgc->abSearch, pabBytes, cbBytes);
3680	pDbgc->cbSearch = cbBytes;
3681	pDbgc->cbSearchUnit = cbUnit;
3682	}
3683	pDbgc->cMaxSearchHits = cMaxHits;
3684	pDbgc->SearchAddr = *pAddress;
3685	pDbgc->cbSearchRange = cbRange;
3686
3687	return cHits ? VINF_SUCCESS : VERR_DBGC_COMMAND_FAILED;
3688	}
3689
3690
3691	/**
3692	* Resumes the previous search.
3693	*
3694	* @returns VBox status code.
3695	* @param pCmdHlp Pointer to the command helper functions.
3696	* @param pUVM The user mode VM handle.
3697	* @param pResult Where to store the result of a function invocation.
3698	*/
3699	static int dbgcCmdWorkerSearchMemResume(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGCVAR pResult)
3700	{
3701	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3702
3703	/*
3704	* Make sure there is a previous command.
3705	*/
3706	if (!pDbgc->cbSearch)
3707	{
3708	DBGCCmdHlpPrintf(pCmdHlp, "Error: No previous search\n");
3709	return VERR_DBGC_COMMAND_FAILED;
3710	}
3711
3712	/*
3713	* Make range and address adjustments.
3714	*/
3715	DBGFADDRESS Address = pDbgc->SearchAddr;
3716	if (Address.FlatPtr == ~(RTGCUINTPTR)0)
3717	{
3718	Address.FlatPtr -= Address.off;
3719	Address.off = 0;
3720	}
3721
3722	RTGCUINTPTR cbRange = pDbgc->cbSearchRange;
3723	if (!cbRange)
3724	cbRange = ~(RTGCUINTPTR)0;
3725	if (Address.FlatPtr + cbRange < pDbgc->SearchAddr.FlatPtr)
3726	cbRange = ~(RTGCUINTPTR)0 - pDbgc->SearchAddr.FlatPtr + !!pDbgc->SearchAddr.FlatPtr;
3727
3728	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, pDbgc->abSearch, pDbgc->cbSearch,
3729	pDbgc->cbSearchUnit, pDbgc->cMaxSearchHits, pResult);
3730	}
3731
3732
3733	/**
3734	* Search memory, worker for the 's' and 's?' functions.
3735	*
3736	* @returns VBox status.
3737	* @param pCmdHlp Pointer to the command helper functions.
3738	* @param pUVM The user mode VM handle.
3739	* @param pAddress Where to start searching. If no range, search till end of address space.
3740	* @param cMaxHits The maximum number of hits.
3741	* @param chType The search type.
3742	* @param paPatArgs The pattern variable array.
3743	* @param cPatArgs Number of pattern variables.
3744	* @param pResult Where to store the result of a function invocation.
3745	*/
3746	static int dbgcCmdWorkerSearchMem(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pAddress, uint64_t cMaxHits, char chType,
3747	PCDBGCVAR paPatArgs, unsigned cPatArgs, PDBGCVAR pResult)
3748	{
3749	if (pResult)
3750	DBGCVAR_INIT_GC_FLAT(pResult, 0);
3751
3752	/*
3753	* Convert the search pattern into bytes and DBGFR3MemScan can deal with.
3754	*/
3755	uint32_t cbUnit;
3756	switch (chType)
3757	{
3758	case 'a':
3759	case 'b': cbUnit = 1; break;
3760	case 'u': cbUnit = 2 \| RT_BIT_32(31); break;
3761	case 'w': cbUnit = 2; break;
3762	case 'd': cbUnit = 4; break;
3763	case 'q': cbUnit = 8; break;
3764	default:
3765	return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "chType=%c\n", chType);
3766	}
3767	uint8_t abBytes[RT_SIZEOFMEMB(DBGC, abSearch)];
3768	uint32_t cbBytes = sizeof(abBytes);
3769	int rc = dbgcVarsToBytes(pCmdHlp, abBytes, &cbBytes, cbUnit, paPatArgs, cPatArgs);
3770	if (RT_FAILURE(rc))
3771	return VERR_DBGC_COMMAND_FAILED;
3772
3773	/*
3774	* Make DBGF address and fix the range.
3775	*/
3776	DBGFADDRESS Address;
3777	rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pAddress, &Address);
3778	if (RT_FAILURE(rc))
3779	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "VarToDbgfAddr(,%Dv,)\n", pAddress);
3780
3781	RTGCUINTPTR cbRange;
3782	switch (pAddress->enmRangeType)
3783	{
3784	case DBGCVAR_RANGE_BYTES:
3785	cbRange = pAddress->u64Range;
3786	if (cbRange != pAddress->u64Range)
3787	cbRange = ~(RTGCUINTPTR)0;
3788	break;
3789
3790	case DBGCVAR_RANGE_ELEMENTS:
3791	cbRange = (RTGCUINTPTR)(pAddress->u64Range * cbUnit);
3792	if ( cbRange != pAddress->u64Range * cbUnit
3793	\|\| cbRange < pAddress->u64Range)
3794	cbRange = ~(RTGCUINTPTR)0;
3795	break;
3796
3797	default:
3798	cbRange = ~(RTGCUINTPTR)0;
3799	break;
3800	}
3801	if (Address.FlatPtr + cbRange < Address.FlatPtr)
3802	cbRange = ~(RTGCUINTPTR)0 - Address.FlatPtr + !!Address.FlatPtr;
3803
3804	/*
3805	* Ok, do it.
3806	*/
3807	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, abBytes, cbBytes, cbUnit, cMaxHits, pResult);
3808	}
3809
3810
3811	/**
3812	* @interface_method_impl{FNDBCCMD, The 's' command.}
3813	*/
3814	static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3815	{
3816	/* check that the parser did what it's supposed to do. */
3817	//if ( cArgs <= 2
3818	// && paArgs[0].enmType != DBGCVAR_TYPE_STRING)
3819	// return DBGCCmdHlpPrintf(pCmdHlp, "parser error\n");
3820
3821	/*
3822	* Repeat previous search?
3823	*/
3824	if (cArgs == 0)
3825	return dbgcCmdWorkerSearchMemResume(pCmdHlp, pUVM, NULL);
3826
3827	/*
3828	* Parse arguments.
3829	*/
3830
3831	return -1;
3832	}
3833
3834
3835	/**
3836	* @interface_method_impl{FNDBCCMD, The 's?' command.}
3837	*/
3838	static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3839	{
3840	/* check that the parser did what it's supposed to do. */
3841	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2 && DBGCVAR_ISGCPOINTER(paArgs[0].enmType));
3842	return dbgcCmdWorkerSearchMem(pCmdHlp, pUVM, &paArgs[0], 25, pCmd->pszCmd[1], paArgs + 1, cArgs - 1, NULL);
3843	}
3844
3845
3846	/**
3847	* List near symbol.
3848	*
3849	* @returns VBox status code.
3850	* @param pCmdHlp Pointer to command helper functions.
3851	* @param pUVM The user mode VM handle.
3852	* @param pArg Pointer to the address or symbol to lookup.
3853	*/
3854	static int dbgcDoListNear(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pArg)
3855	{
3856	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3857
3858	RTDBGSYMBOL Symbol;
3859	int rc;
3860	if (pArg->enmType == DBGCVAR_TYPE_SYMBOL)
3861	{
3862	/*
3863	* Lookup the symbol address.
3864	*/
3865	rc = DBGFR3AsSymbolByName(pUVM, pDbgc->hDbgAs, pArg->u.pszString, &Symbol, NULL);
3866	if (RT_FAILURE(rc))
3867	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3AsSymbolByName(,,%s,)\n", pArg->u.pszString);
3868
3869	rc = DBGCCmdHlpPrintf(pCmdHlp, "%RTptr %s\n", Symbol.Value, Symbol.szName);
3870	}
3871	else
3872	{
3873	/*
3874	* Convert it to a flat GC address and lookup that address.
3875	*/
3876	DBGCVAR AddrVar;
3877	rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(%DV)", pArg);
3878	if (RT_FAILURE(rc))
3879	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(%DV)\n", pArg);
3880
3881	RTINTPTR offDisp;
3882	DBGFADDRESS Addr;
3883	rc = DBGFR3AsSymbolByAddr(pUVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pDbgc->pUVM, &Addr, AddrVar.u.GCFlat),
3884	RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &offDisp, &Symbol, NULL);
3885	if (RT_FAILURE(rc))
3886	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3ASymbolByAddr(,,%RGv,,)\n", AddrVar.u.GCFlat);
3887
3888	if (!offDisp)
3889	rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s", &AddrVar, Symbol.szName);
3890	else if (offDisp > 0)
3891	rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s + %RGv", &AddrVar, Symbol.szName, offDisp);
3892	else
3893	rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s - %RGv", &AddrVar, Symbol.szName, -offDisp);
3894	if ((RTGCINTPTR)Symbol.cb > -offDisp)
3895	rc = DBGCCmdHlpPrintf(pCmdHlp, " LB %RGv\n", Symbol.cb + offDisp);
3896	else
3897	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3898	}
3899
3900	return rc;
3901	}
3902
3903
3904	/**
3905	* @interface_method_impl{FNDBCCMD, The 'ln' (listnear) command.}
3906	*/
3907	static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3908	{
3909	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3910	if (!cArgs)
3911	{
3912	/*
3913	* Current cs:eip symbol.
3914	*/
3915	DBGCVAR AddrVar;
3916	const char *pszFmtExpr = pDbgc->fRegCtxGuest ? "%%(cs:eip)" : "%%(.cs:.eip)";
3917	int rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, pszFmtExpr);
3918	if (RT_FAILURE(rc))
3919	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%s\n", pszFmtExpr + 1);
3920	return dbgcDoListNear(pCmdHlp, pUVM, &AddrVar);
3921	}
3922
3923	/** @todo Fix the darn parser, it's resolving symbols specified as arguments before we get in here. */
3924	/*
3925	* Iterate arguments.
3926	*/
3927	for (unsigned iArg = 0; iArg < cArgs; iArg++)
3928	{
3929	int rc = dbgcDoListNear(pCmdHlp, pUVM, &paArgs[iArg]);
3930	if (RT_FAILURE(rc))
3931	return rc;
3932	}
3933
3934	NOREF(pCmd);
3935	return VINF_SUCCESS;
3936	}
3937
3938
3939	/**
3940	* Matches the module patters against a module name.
3941	*
3942	* @returns true if matching, otherwise false.
3943	* @param pszName The module name.
3944	* @param paArgs The module pattern argument list.
3945	* @param cArgs Number of arguments.
3946	*/
3947	static bool dbgcCmdListModuleMatch(const char *pszName, PCDBGCVAR paArgs, unsigned cArgs)
3948	{
3949	for (uint32_t i = 0; i < cArgs; i++)
3950	if (RTStrSimplePatternMatch(paArgs[i].u.pszString, pszName))
3951	return true;
3952	return false;
3953	}
3954
3955
3956	/**
3957	* @interface_method_impl{FNDBCCMD, The 'ln' (list near) command.}
3958	*/
3959	static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3960	{
3961	bool const fMappings = pCmd->pszCmd[2] == 'o';
3962	bool const fVerbose = pCmd->pszCmd[strlen(pCmd->pszCmd) - 1] == 'v';
3963	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3964
3965	/*
3966	* Iterate the modules in the current address space and print info about
3967	* those matching the input.
3968	*/
3969	RTDBGAS hAs = DBGFR3AsResolveAndRetain(pUVM, pDbgc->hDbgAs);
3970	uint32_t cMods = RTDbgAsModuleCount(hAs);
3971	for (uint32_t iMod = 0; iMod < cMods; iMod++)
3972	{
3973	RTDBGMOD hMod = RTDbgAsModuleByIndex(hAs, iMod);
3974	if (hMod != NIL_RTDBGMOD)
3975	{
3976	bool const fDeferred = RTDbgModIsDeferred(hMod);
3977	bool const fExports = RTDbgModIsExports(hMod);
3978	uint32_t const cSegs = fDeferred ? 1 : RTDbgModSegmentCount(hMod);
3979	const char * const pszName = RTDbgModName(hMod);
3980	const char * const pszImgFile = RTDbgModImageFile(hMod);
3981	const char * const pszImgFileUsed = RTDbgModImageFileUsed(hMod);
3982	const char * const pszDbgFile = RTDbgModDebugFile(hMod);
3983	if ( cArgs == 0
3984	\|\| dbgcCmdListModuleMatch(pszName, paArgs, cArgs))
3985	{
3986	/*
3987	* Find the mapping with the lower address, preferring a full
3988	* image mapping, for the main line.
3989	*/
3990	RTDBGASMAPINFO aMappings[128];
3991	uint32_t cMappings = RT_ELEMENTS(aMappings);
3992	int rc = RTDbgAsModuleQueryMapByIndex(hAs, iMod, &aMappings[0], &cMappings, 0 /fFlags/);
3993	if (RT_SUCCESS(rc))
3994	{
3995	bool fFull = false;
3996	RTUINTPTR uMin = RTUINTPTR_MAX;
3997	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
3998	if ( aMappings[iMap].Address < uMin
3999	&& ( !fFull
4000	\|\| aMappings[iMap].iSeg == NIL_RTDBGSEGIDX))
4001	uMin = aMappings[iMap].Address;
4002	if (!fVerbose \|\| !pszImgFile)
4003	DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %s%s\n", (RTGCUINTPTR)uMin, cSegs, pszName,
4004	fExports ? " (exports)" : fDeferred ? " (deferred)" : "");
4005	else
4006	DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %-12s %s%s\n", (RTGCUINTPTR)uMin, cSegs, pszName, pszImgFile,
4007	fExports ? " (exports)" : fDeferred ? " (deferred)" : "");
4008	if (fVerbose && pszImgFileUsed)
4009	DBGCCmdHlpPrintf(pCmdHlp, " Local image: %s\n", pszImgFileUsed);
4010	if (fVerbose && pszDbgFile)
4011	DBGCCmdHlpPrintf(pCmdHlp, " Debug file: %s\n", pszDbgFile);
4012
4013	if (fMappings)
4014	{
4015	/* sort by address first - not very efficient. */
4016	for (uint32_t i = 0; i + 1 < cMappings; i++)
4017	for (uint32_t j = i + 1; j < cMappings; j++)
4018	if (aMappings[j].Address < aMappings[i].Address)
4019	{
4020	RTDBGASMAPINFO Tmp = aMappings[j];
4021	aMappings[j] = aMappings[i];
4022	aMappings[i] = Tmp;
4023	}
4024
4025	/* print */
4026	if ( cMappings == 1
4027	&& aMappings[0].iSeg == NIL_RTDBGSEGIDX
4028	&& !fDeferred)
4029	{
4030	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
4031	{
4032	RTDBGSEGMENT SegInfo;
4033	rc = RTDbgModSegmentByIndex(hMod, iSeg, &SegInfo);
4034	if (RT_SUCCESS(rc))
4035	{
4036	if (SegInfo.uRva != RTUINTPTR_MAX)
4037	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4038	(RTGCUINTPTR)(aMappings[0].Address + SegInfo.uRva),
4039	(RTGCUINTPTR)SegInfo.cb, iSeg, SegInfo.szName);
4040	else
4041	DBGCCmdHlpPrintf(pCmdHlp, " %*s %RGv #%02x %s\n",
4042	sizeof(RTGCUINTPTR)*2, "noload",
4043	(RTGCUINTPTR)SegInfo.cb, iSeg, SegInfo.szName);
4044	}
4045	else
4046	DBGCCmdHlpPrintf(pCmdHlp, " Error query segment #%u: %Rrc\n", iSeg, rc);
4047	}
4048	}
4049	else
4050	{
4051	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4052	if (aMappings[iMap].iSeg == NIL_RTDBGSEGIDX)
4053	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv <everything>\n",
4054	(RTGCUINTPTR)aMappings[iMap].Address,
4055	(RTGCUINTPTR)RTDbgModImageSize(hMod));
4056	else if (!fDeferred)
4057	{
4058	RTDBGSEGMENT SegInfo;
4059	rc = RTDbgModSegmentByIndex(hMod, aMappings[iMap].iSeg, &SegInfo);
4060	if (RT_FAILURE(rc))
4061	{
4062	RT_ZERO(SegInfo);
4063	strcpy(SegInfo.szName, "error");
4064	}
4065	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4066	(RTGCUINTPTR)aMappings[iMap].Address,
4067	(RTGCUINTPTR)SegInfo.cb,
4068	aMappings[iMap].iSeg, SegInfo.szName);
4069	}
4070	else
4071	DBGCCmdHlpPrintf(pCmdHlp, " %RGv #%02x\n",
4072	(RTGCUINTPTR)aMappings[iMap].Address, aMappings[iMap].iSeg);
4073	}
4074	}
4075	}
4076	else
4077	DBGCCmdHlpPrintf(pCmdHlp, "%.*s %04x %s (rc=%Rrc)\n",
4078	sizeof(RTGCPTR) * 2, "???????????", cSegs, pszName, rc);
4079	/** @todo missing address space API for enumerating the mappings. */
4080	}
4081	RTDbgModRelease(hMod);
4082	}
4083	}
4084	RTDbgAsRelease(hAs);
4085
4086	NOREF(pCmd);
4087	return VINF_SUCCESS;
4088	}
4089
4090
4091
4092	/**
4093	* @callback_method_impl{Reads a unsigned 8-bit value.}
4094	*/
4095	static DECLCALLBACK(int) dbgcFuncReadU8(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4096	PDBGCVAR pResult)
4097	{
4098	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4099	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4100	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4101
4102	uint8_t b;
4103	int rc = DBGCCmdHlpMemRead(pCmdHlp, &b, sizeof(b), &paArgs[0], NULL);
4104	if (RT_FAILURE(rc))
4105	return rc;
4106	DBGCVAR_INIT_NUMBER(pResult, b);
4107
4108	NOREF(pFunc);
4109	return VINF_SUCCESS;
4110	}
4111
4112
4113	/**
4114	* @callback_method_impl{Reads a unsigned 16-bit value.}
4115	*/
4116	static DECLCALLBACK(int) dbgcFuncReadU16(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4117	PDBGCVAR pResult)
4118	{
4119	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4120	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4121	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4122
4123	uint16_t u16;
4124	int rc = DBGCCmdHlpMemRead(pCmdHlp, &u16, sizeof(u16), &paArgs[0], NULL);
4125	if (RT_FAILURE(rc))
4126	return rc;
4127	DBGCVAR_INIT_NUMBER(pResult, u16);
4128
4129	NOREF(pFunc);
4130	return VINF_SUCCESS;
4131	}
4132
4133
4134	/**
4135	* @callback_method_impl{Reads a unsigned 32-bit value.}
4136	*/
4137	static DECLCALLBACK(int) dbgcFuncReadU32(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4138	PDBGCVAR pResult)
4139	{
4140	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4141	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4142	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4143
4144	uint32_t u32;
4145	int rc = DBGCCmdHlpMemRead(pCmdHlp, &u32, sizeof(u32), &paArgs[0], NULL);
4146	if (RT_FAILURE(rc))
4147	return rc;
4148	DBGCVAR_INIT_NUMBER(pResult, u32);
4149
4150	NOREF(pFunc);
4151	return VINF_SUCCESS;
4152	}
4153
4154
4155	/**
4156	* @callback_method_impl{Reads a unsigned 64-bit value.}
4157	*/
4158	static DECLCALLBACK(int) dbgcFuncReadU64(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4159	PDBGCVAR pResult)
4160	{
4161	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4162	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4163	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4164
4165	uint64_t u64;
4166	int rc = DBGCCmdHlpMemRead(pCmdHlp, &u64, sizeof(u64), &paArgs[0], NULL);
4167	if (RT_FAILURE(rc))
4168	return rc;
4169	DBGCVAR_INIT_NUMBER(pResult, u64);
4170
4171	NOREF(pFunc);
4172	return VINF_SUCCESS;
4173	}
4174
4175
4176	/**
4177	* @callback_method_impl{Reads a unsigned pointer-sized value.}
4178	*/
4179	static DECLCALLBACK(int) dbgcFuncReadPtr(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4180	PDBGCVAR pResult)
4181	{
4182	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4183	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4184	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4185
4186	CPUMMODE enmMode = DBGCCmdHlpGetCpuMode(pCmdHlp);
4187	if (enmMode == CPUMMODE_LONG)
4188	return dbgcFuncReadU64(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4189	return dbgcFuncReadU32(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4190	}
4191
4192
4193	/**
4194	* @callback_method_impl{The hi(value) function implementation.}
4195	*/
4196	static DECLCALLBACK(int) dbgcFuncHi(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4197	PDBGCVAR pResult)
4198	{
4199	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4200
4201	uint16_t uHi;
4202	switch (paArgs[0].enmType)
4203	{
4204	case DBGCVAR_TYPE_GC_FLAT: uHi = (uint16_t)(paArgs[0].u.GCFlat >> 16); break;
4205	case DBGCVAR_TYPE_GC_FAR: uHi = (uint16_t)paArgs[0].u.GCFar.sel; break;
4206	case DBGCVAR_TYPE_GC_PHYS: uHi = (uint16_t)(paArgs[0].u.GCPhys >> 16); break;
4207	case DBGCVAR_TYPE_HC_FLAT: uHi = (uint16_t)((uintptr_t)paArgs[0].u.pvHCFlat >> 16); break;
4208	case DBGCVAR_TYPE_HC_PHYS: uHi = (uint16_t)(paArgs[0].u.HCPhys >> 16); break;
4209	case DBGCVAR_TYPE_NUMBER: uHi = (uint16_t)(paArgs[0].u.u64Number >> 16); break;
4210	default:
4211	AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4212	}
4213	DBGCVAR_INIT_NUMBER(pResult, uHi);
4214	DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4215
4216	NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4217	return VINF_SUCCESS;
4218	}
4219
4220
4221	/**
4222	* @callback_method_impl{The low(value) function implementation.}
4223	*/
4224	static DECLCALLBACK(int) dbgcFuncLow(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4225	PDBGCVAR pResult)
4226	{
4227	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4228
4229	uint16_t uLow;
4230	switch (paArgs[0].enmType)
4231	{
4232	case DBGCVAR_TYPE_GC_FLAT: uLow = (uint16_t)paArgs[0].u.GCFlat; break;
4233	case DBGCVAR_TYPE_GC_FAR: uLow = (uint16_t)paArgs[0].u.GCFar.off; break;
4234	case DBGCVAR_TYPE_GC_PHYS: uLow = (uint16_t)paArgs[0].u.GCPhys; break;
4235	case DBGCVAR_TYPE_HC_FLAT: uLow = (uint16_t)(uintptr_t)paArgs[0].u.pvHCFlat; break;
4236	case DBGCVAR_TYPE_HC_PHYS: uLow = (uint16_t)paArgs[0].u.HCPhys; break;
4237	case DBGCVAR_TYPE_NUMBER: uLow = (uint16_t)paArgs[0].u.u64Number; break;
4238	default:
4239	AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4240	}
4241	DBGCVAR_INIT_NUMBER(pResult, uLow);
4242	DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4243
4244	NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4245	return VINF_SUCCESS;
4246	}
4247
4248
4249	/**
4250	* @callback_method_impl{The low(value) function implementation.}
4251	*/
4252	static DECLCALLBACK(int) dbgcFuncNot(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4253	PDBGCVAR pResult)
4254	{
4255	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4256	NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4257	return DBGCCmdHlpEval(pCmdHlp, pResult, "!(%Dv)", &paArgs[0]);
4258	}
4259
4260
4261	/** Generic pointer argument wo/ range. */
4262	static const DBGCVARDESC g_aArgPointerWoRange[] =
4263	{
4264	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4265	{ 1, 1, DBGCVAR_CAT_POINTER_NO_RANGE, 0, "value", "Address or number." },
4266	};
4267
4268	/** Generic pointer or number argument. */
4269	static const DBGCVARDESC g_aArgPointerNumber[] =
4270	{
4271	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4272	{ 1, 1, DBGCVAR_CAT_POINTER_NUMBER, 0, "value", "Address or number." },
4273	};
4274
4275
4276
4277	/** Function descriptors for the CodeView / WinDbg emulation.
4278	* The emulation isn't attempting to be identical, only somewhat similar.
4279	*/
4280	const DBGCFUNC g_aFuncsCodeView[] =
4281	{
4282	{ "by", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU8, "address", "Reads a byte at the given address." },
4283	{ "dwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU32, "address", "Reads a 32-bit value at the given address." },
4284	{ "hi", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncHi, "value", "Returns the high 16-bit bits of a value." },
4285	{ "low", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncLow, "value", "Returns the low 16-bit bits of a value." },
4286	{ "not", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncNot, "address", "Boolean NOT." },
4287	{ "poi", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadPtr, "address", "Reads a pointer sized (CS) value at the given address." },
4288	{ "qwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU64, "address", "Reads a 32-bit value at the given address." },
4289	{ "wo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU16, "address", "Reads a 16-bit value at the given address." },
4290	};
4291
4292	/** The number of functions in the CodeView/WinDbg emulation. */
4293	const uint32_t g_cFuncsCodeView = RT_ELEMENTS(g_aFuncsCodeView);
4294

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source: vbox/trunk/src/VBox/Debugger/DBGCEmulateCodeView.cpp@ 46158

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