DBGCEmulateCodeView.cpp@ 48030

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1	/* $Id: DBGCEmulateCodeView.cpp 48017 2013-08-23 09:25:31Z 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 \| DBGF_DISAS_FLAGS_UNPATCHED_BYTES \| DBGF_DISAS_FLAGS_ANNOTATE_PATCHED;
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 and flags. */
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	if ( (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_DEFAULT_MODE
955	&& pDbgc->fRegCtxGuest
956	&& (CPUMGetGuestEFlags(pVCpu) & X86_EFL_VM))
957	{
958	fFlags &= ~DBGF_DISAS_FLAGS_MODE_MASK;
959	fFlags \|= DBGF_DISAS_FLAGS_16BIT_REAL_MODE;
960	}
961	}
962
963	if (pDbgc->fRegCtxGuest)
964	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_GUEST;
965	else
966	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_HYPER \| DBGF_DISAS_FLAGS_HYPER;
967	}
968	else if ((fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_DEFAULT_MODE && pDbgc->fDisasm)
969	{
970	fFlags &= ~DBGF_DISAS_FLAGS_MODE_MASK;
971	fFlags \|= pDbgc->fDisasm & (DBGF_DISAS_FLAGS_MODE_MASK \| DBGF_DISAS_FLAGS_HYPER);
972	}
973	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_NONE;
974	}
975	else
976	pDbgc->DisasmPos = paArgs[0];
977	pDbgc->pLastPos = &pDbgc->DisasmPos;
978
979	/*
980	* Range.
981	*/
982	switch (pDbgc->DisasmPos.enmRangeType)
983	{
984	case DBGCVAR_RANGE_NONE:
985	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
986	pDbgc->DisasmPos.u64Range = 10;
987	break;
988
989	case DBGCVAR_RANGE_ELEMENTS:
990	if (pDbgc->DisasmPos.u64Range > 2048)
991	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Too many lines requested. Max is 2048 lines");
992	break;
993
994	case DBGCVAR_RANGE_BYTES:
995	if (pDbgc->DisasmPos.u64Range > 65536)
996	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The requested range is too big. Max is 64KB");
997	break;
998
999	default:
1000	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown range type %d", pDbgc->DisasmPos.enmRangeType);
1001	}
1002
1003	/*
1004	* Convert physical and host addresses to guest addresses.
1005	*/
1006	RTDBGAS hDbgAs = pDbgc->hDbgAs;
1007	int rc;
1008	switch (pDbgc->DisasmPos.enmType)
1009	{
1010	case DBGCVAR_TYPE_GC_FLAT:
1011	case DBGCVAR_TYPE_GC_FAR:
1012	break;
1013	case DBGCVAR_TYPE_GC_PHYS:
1014	hDbgAs = DBGF_AS_PHYS;
1015	case DBGCVAR_TYPE_HC_FLAT:
1016	case DBGCVAR_TYPE_HC_PHYS:
1017	{
1018	DBGCVAR VarTmp;
1019	rc = DBGCCmdHlpEval(pCmdHlp, &VarTmp, "%%(%Dv)", &pDbgc->DisasmPos);
1020	if (RT_FAILURE(rc))
1021	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "failed to evaluate '%%(%Dv)'", &pDbgc->DisasmPos);
1022	pDbgc->DisasmPos = VarTmp;
1023	break;
1024	}
1025	default: AssertFailed(); break;
1026	}
1027
1028	DBGFADDRESS CurAddr;
1029	if ( (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_16BIT_REAL_MODE
1030	&& pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FAR)
1031	DBGFR3AddrFromFlat(pUVM, &CurAddr, ((uint32_t)pDbgc->DisasmPos.u.GCFar.sel << 4) + pDbgc->DisasmPos.u.GCFar.off);
1032	else
1033	{
1034	rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->DisasmPos, &CurAddr);
1035	if (RT_FAILURE(rc))
1036	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr failed on '%Dv'", &pDbgc->DisasmPos);
1037	}
1038
1039	if (CurAddr.fFlags & DBGFADDRESS_FLAGS_HMA)
1040	fFlags \|= DBGF_DISAS_FLAGS_HYPER; /* This crap is due to not using DBGFADDRESS as DBGFR3Disas* input. */
1041	pDbgc->fDisasm = fFlags;
1042
1043	/*
1044	* Figure out where we are and display it. Also calculate when we need to
1045	* check for a new symbol if possible.
1046	*/
1047	RTGCUINTPTR cbCheckSymbol;
1048	dbgcCmdUnassambleHelpListNear(pUVM, pCmdHlp, hDbgAs, &CurAddr, &cbCheckSymbol);
1049
1050	/*
1051	* Do the disassembling.
1052	*/
1053	unsigned cTries = 32;
1054	int iRangeLeft = (int)pDbgc->DisasmPos.u64Range;
1055	if (iRangeLeft == 0) /* kludge for 'r'. */
1056	iRangeLeft = -1;
1057	for (;;)
1058	{
1059	/*
1060	* Disassemble the instruction.
1061	*/
1062	char szDis[256];
1063	uint32_t cbInstr = 1;
1064	if (pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FLAT)
1065	rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, DBGF_SEL_FLAT, pDbgc->DisasmPos.u.GCFlat, fFlags,
1066	&szDis[0], sizeof(szDis), &cbInstr);
1067	else
1068	rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, pDbgc->DisasmPos.u.GCFar.sel, pDbgc->DisasmPos.u.GCFar.off, fFlags,
1069	&szDis[0], sizeof(szDis), &cbInstr);
1070	if (RT_SUCCESS(rc))
1071	{
1072	/* print it */
1073	rc = DBGCCmdHlpPrintf(pCmdHlp, "%-16DV %s\n", &pDbgc->DisasmPos, &szDis[0]);
1074	if (RT_FAILURE(rc))
1075	return rc;
1076	}
1077	else
1078	{
1079	/* bitch. */
1080	int rc2 = DBGCCmdHlpPrintf(pCmdHlp, "Failed to disassemble instruction, skipping one byte.\n");
1081	if (RT_FAILURE(rc2))
1082	return rc2;
1083	if (cTries-- > 0)
1084	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Too many disassembly failures. Giving up");
1085	cbInstr = 1;
1086	}
1087
1088	/* advance */
1089	if (iRangeLeft < 0) /* 'r' */
1090	break;
1091	if (pDbgc->DisasmPos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1092	iRangeLeft--;
1093	else
1094	iRangeLeft -= cbInstr;
1095	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DisasmPos, "(%Dv) + %x", &pDbgc->DisasmPos, cbInstr);
1096	if (RT_FAILURE(rc))
1097	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpEval(,,'(%Dv) + %x')", &pDbgc->DisasmPos, cbInstr);
1098	if (iRangeLeft <= 0)
1099	break;
1100	fFlags &= ~(DBGF_DISAS_FLAGS_CURRENT_GUEST \| DBGF_DISAS_FLAGS_CURRENT_HYPER);
1101
1102	/* Print next symbol? */
1103	if (cbCheckSymbol <= cbInstr)
1104	{
1105	if ( (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_16BIT_REAL_MODE
1106	&& pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FAR)
1107	DBGFR3AddrFromFlat(pUVM, &CurAddr, ((uint32_t)pDbgc->DisasmPos.u.GCFar.sel << 4) + pDbgc->DisasmPos.u.GCFar.off);
1108	else
1109	rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->DisasmPos, &CurAddr);
1110	if (RT_SUCCESS(rc))
1111	dbgcCmdUnassambleHelpListNear(pUVM, pCmdHlp, hDbgAs, &CurAddr, &cbCheckSymbol);
1112	else
1113	cbCheckSymbol = UINT32_MAX;
1114	}
1115	else
1116	cbCheckSymbol -= cbInstr;
1117	}
1118
1119	NOREF(pCmd);
1120	return VINF_SUCCESS;
1121	}
1122
1123
1124	/**
1125	* @interface_method_impl{FNDBCCMD, The 'ls' command.}
1126	*/
1127	static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1128	{
1129	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1130
1131	/*
1132	* Validate input.
1133	*/
1134	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
1135	if (cArgs == 1)
1136	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
1137	if (!pUVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1138	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Don't know where to start listing...");
1139	if (!pUVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
1140	return DBGCCmdHlpFail(pCmdHlp, pCmd, "GC address but no VM");
1141
1142	/*
1143	* Find address.
1144	*/
1145	if (!cArgs)
1146	{
1147	if (!DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1148	{
1149	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
1150	pDbgc->SourcePos.enmType = DBGCVAR_TYPE_GC_FAR;
1151	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
1152	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
1153	}
1154	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_NONE;
1155	}
1156	else
1157	pDbgc->SourcePos = paArgs[0];
1158	pDbgc->pLastPos = &pDbgc->SourcePos;
1159
1160	/*
1161	* Ensure the source address is flat GC.
1162	*/
1163	switch (pDbgc->SourcePos.enmType)
1164	{
1165	case DBGCVAR_TYPE_GC_FLAT:
1166	break;
1167	case DBGCVAR_TYPE_GC_PHYS:
1168	case DBGCVAR_TYPE_GC_FAR:
1169	case DBGCVAR_TYPE_HC_FLAT:
1170	case DBGCVAR_TYPE_HC_PHYS:
1171	{
1172	int rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "%%(%Dv)", &pDbgc->SourcePos);
1173	if (RT_FAILURE(rc))
1174	return DBGCCmdHlpPrintf(pCmdHlp, "error: Invalid address or address type. (rc=%d)\n", rc);
1175	break;
1176	}
1177	default: AssertFailed(); break;
1178	}
1179
1180	/*
1181	* Range.
1182	*/
1183	switch (pDbgc->SourcePos.enmRangeType)
1184	{
1185	case DBGCVAR_RANGE_NONE:
1186	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1187	pDbgc->SourcePos.u64Range = 10;
1188	break;
1189
1190	case DBGCVAR_RANGE_ELEMENTS:
1191	if (pDbgc->SourcePos.u64Range > 2048)
1192	return DBGCCmdHlpPrintf(pCmdHlp, "error: Too many lines requested. Max is 2048 lines.\n");
1193	break;
1194
1195	case DBGCVAR_RANGE_BYTES:
1196	if (pDbgc->SourcePos.u64Range > 65536)
1197	return DBGCCmdHlpPrintf(pCmdHlp, "error: The requested range is too big. Max is 64KB.\n");
1198	break;
1199
1200	default:
1201	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: Unknown range type %d.\n", pDbgc->SourcePos.enmRangeType);
1202	}
1203
1204	/*
1205	* Do the disassembling.
1206	*/
1207	bool fFirst = 1;
1208	RTDBGLINE LinePrev = { 0, 0, 0, 0, 0, "" };
1209	int iRangeLeft = (int)pDbgc->SourcePos.u64Range;
1210	if (iRangeLeft == 0) /* kludge for 'r'. */
1211	iRangeLeft = -1;
1212	for (;;)
1213	{
1214	/*
1215	* Get line info.
1216	*/
1217	RTDBGLINE Line;
1218	RTGCINTPTR off;
1219	DBGFADDRESS SourcePosAddr;
1220	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->SourcePos, &SourcePosAddr);
1221	if (RT_FAILURE(rc))
1222	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,%Dv)", &pDbgc->SourcePos);
1223	rc = DBGFR3AsLineByAddr(pUVM, pDbgc->hDbgAs, &SourcePosAddr, &off, &Line, NULL);
1224	if (RT_FAILURE(rc))
1225	return VINF_SUCCESS;
1226
1227	unsigned cLines = 0;
1228	if (memcmp(&Line, &LinePrev, sizeof(Line)))
1229	{
1230	/*
1231	* Print filenamename
1232	*/
1233	if (!fFirst && strcmp(Line.szFilename, LinePrev.szFilename))
1234	fFirst = true;
1235	if (fFirst)
1236	{
1237	rc = DBGCCmdHlpPrintf(pCmdHlp, "[%s @ %d]\n", Line.szFilename, Line.uLineNo);
1238	if (RT_FAILURE(rc))
1239	return rc;
1240	}
1241
1242	/*
1243	* Try open the file and read the line.
1244	*/
1245	FILE *phFile = fopen(Line.szFilename, "r");
1246	if (phFile)
1247	{
1248	/* Skip ahead to the desired line. */
1249	char szLine[4096];
1250	unsigned cBefore = fFirst ? RT_MIN(2, Line.uLineNo - 1) : Line.uLineNo - LinePrev.uLineNo - 1;
1251	if (cBefore > 7)
1252	cBefore = 0;
1253	unsigned cLeft = Line.uLineNo - cBefore;
1254	while (cLeft > 0)
1255	{
1256	szLine[0] = '\0';
1257	if (!fgets(szLine, sizeof(szLine), phFile))
1258	break;
1259	cLeft--;
1260	}
1261	if (!cLeft)
1262	{
1263	/* print the before lines */
1264	for (;;)
1265	{
1266	size_t cch = strlen(szLine);
1267	while (cch > 0 && (szLine[cch - 1] == '\r' \|\| szLine[cch - 1] == '\n' \|\| RT_C_IS_SPACE(szLine[cch - 1])) )
1268	szLine[--cch] = '\0';
1269	if (cBefore-- <= 0)
1270	break;
1271
1272	rc = DBGCCmdHlpPrintf(pCmdHlp, " %4d: %s\n", Line.uLineNo - cBefore - 1, szLine);
1273	szLine[0] = '\0';
1274	fgets(szLine, sizeof(szLine), phFile);
1275	cLines++;
1276	}
1277	/* print the actual line */
1278	rc = DBGCCmdHlpPrintf(pCmdHlp, "%08llx %4d: %s\n", Line.Address, Line.uLineNo, szLine);
1279	}
1280	fclose(phFile);
1281	if (RT_FAILURE(rc))
1282	return rc;
1283	fFirst = false;
1284	}
1285	else
1286	return DBGCCmdHlpPrintf(pCmdHlp, "Warning: couldn't open source file '%s'\n", Line.szFilename);
1287
1288	LinePrev = Line;
1289	}
1290
1291
1292	/*
1293	* Advance
1294	*/
1295	if (iRangeLeft < 0) /* 'r' */
1296	break;
1297	if (pDbgc->SourcePos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1298	iRangeLeft -= cLines;
1299	else
1300	iRangeLeft -= 1;
1301	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "(%Dv) + %x", &pDbgc->SourcePos, 1);
1302	if (RT_FAILURE(rc))
1303	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->SourcePos, 1);
1304	if (iRangeLeft <= 0)
1305	break;
1306	}
1307
1308	NOREF(pCmd);
1309	return 0;
1310	}
1311
1312
1313	/**
1314	* @interface_method_impl{FNDBCCMD, The 'r' command.}
1315	*/
1316	static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1317	{
1318	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1319	if (!pDbgc->fRegCtxGuest)
1320	return dbgcCmdRegHyper(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1321	return dbgcCmdRegGuest(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1322	}
1323
1324
1325	/**
1326	* @interface_method_impl{FNDBCCMD, Common worker for the dbgcCmdReg*()
1327	* commands.}
1328	*/
1329	static DECLCALLBACK(int) dbgcCmdRegCommon(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs,
1330	const char *pszPrefix)
1331	{
1332	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1333	Assert(cArgs == 1 \|\| cArgs == 2); /* cArgs == 0 is handled by the caller */
1334	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1 \|\| cArgs == 2);
1335	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_STRING
1336	\|\| paArgs[0].enmType == DBGCVAR_TYPE_SYMBOL);
1337
1338	/*
1339	* Parse the register name and kind.
1340	*/
1341	const char *pszReg = paArgs[0].u.pszString;
1342	if (*pszReg == '@')
1343	pszReg++;
1344	VMCPUID idCpu = pDbgc->idCpu;
1345	if (*pszPrefix)
1346	idCpu \|= DBGFREG_HYPER_VMCPUID;
1347	if (*pszReg == '.')
1348	{
1349	pszReg++;
1350	idCpu \|= DBGFREG_HYPER_VMCPUID;
1351	}
1352	const char * const pszActualPrefix = idCpu & DBGFREG_HYPER_VMCPUID ? "." : "";
1353
1354	/*
1355	* Query the register type & value (the setter needs the type).
1356	*/
1357	DBGFREGVALTYPE enmType;
1358	DBGFREGVAL Value;
1359	int rc = DBGFR3RegNmQuery(pUVM, idCpu, pszReg, &Value, &enmType);
1360	if (RT_FAILURE(rc))
1361	{
1362	if (rc == VERR_DBGF_REGISTER_NOT_FOUND)
1363	return DBGCCmdHlpVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "Unknown register: '%s%s'.\n",
1364	pszActualPrefix, pszReg);
1365	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmQuery failed querying '%s%s': %Rrc.\n",
1366	pszActualPrefix, pszReg, rc);
1367	}
1368	if (cArgs == 1)
1369	{
1370	/*
1371	* Show the register.
1372	*/
1373	char szValue[160];
1374	rc = DBGFR3RegFormatValue(szValue, sizeof(szValue), &Value, enmType, true /fSpecial/);
1375	if (RT_SUCCESS(rc))
1376	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s%s=%s\n", pszActualPrefix, pszReg, szValue);
1377	else
1378	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1379	}
1380	else if (cArgs == 2)
1381	{
1382	/*
1383	* Modify the register.
1384	*/
1385	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 1, paArgs[1].enmType == DBGCVAR_TYPE_STRING
1386	\|\| paArgs[1].enmType == DBGCVAR_TYPE_SYMBOL);
1387	if (enmType != DBGFREGVALTYPE_DTR)
1388	{
1389	enmType = DBGFREGVALTYPE_U64;
1390	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.u64);
1391	}
1392	else
1393	{
1394	enmType = DBGFREGVALTYPE_DTR;
1395	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.dtr.u64Base);
1396	if (RT_SUCCESS(rc) && paArgs[1].enmRangeType != DBGCVAR_RANGE_NONE)
1397	Value.dtr.u32Limit = (uint32_t)paArgs[1].u64Range;
1398	}
1399	if (RT_SUCCESS(rc))
1400	{
1401	rc = DBGFR3RegNmSet(pUVM, idCpu, pszReg, &Value, enmType);
1402	if (RT_FAILURE(rc))
1403	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmSet failed settings '%s%s': %Rrc\n",
1404	pszActualPrefix, pszReg, rc);
1405	}
1406	else
1407	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1408	}
1409	else
1410	{
1411	NOREF(pCmd); NOREF(paArgs);
1412	rc = DBGCCmdHlpPrintf(pCmdHlp, "Huh? cArgs=%d Expected 0, 1 or 2!\n", cArgs);
1413	}
1414	return rc;
1415	}
1416
1417
1418	/**
1419	* @interface_method_impl{FNDBCCMD,
1420	* The 'rg', 'rg64' and 'rg32' commands, worker for 'r'.}
1421	*/
1422	static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1423	{
1424	/*
1425	* Show all registers our selves.
1426	*/
1427	if (cArgs == 0)
1428	{
1429	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1430	bool const f64BitMode = !strcmp(pCmd->pszCmd, "rg64")
1431	\|\| ( strcmp(pCmd->pszCmd, "rg32") != 0
1432	&& DBGFR3CpuIsIn64BitCode(pUVM, pDbgc->idCpu));
1433	char szDisAndRegs[8192];
1434	int rc;
1435
1436	if (pDbgc->fRegTerse)
1437	{
1438	if (f64BitMode)
1439	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1440	"u %016VR{rip} L 0\n"
1441	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1442	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1443	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1444	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1445	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1446	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} rflags=%08VR{rflags}\n");
1447	else
1448	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1449	"u %04VR{cs}:%08VR{eip} L 0\n"
1450	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1451	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1452	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} eflags=%08VR{eflags}\n");
1453	}
1454	else
1455	{
1456	if (f64BitMode)
1457	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1458	"u %016VR{rip} L 0\n"
1459	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1460	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1461	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1462	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1463	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1464	"cs={%04VR{cs} base=%016VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} cr0=%016VR{cr0}\n"
1465	"ds={%04VR{ds} base=%016VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} cr2=%016VR{cr2}\n"
1466	"es={%04VR{es} base=%016VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} cr3=%016VR{cr3}\n"
1467	"fs={%04VR{fs} base=%016VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr4=%016VR{cr4}\n"
1468	"gs={%04VR{gs} base=%016VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr8=%016VR{cr8}\n"
1469	"ss={%04VR{ss} base=%016VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1470	"dr0=%016VR{dr0} dr1=%016VR{dr1} dr2=%016VR{dr2} dr3=%016VR{dr3}\n"
1471	"dr6=%016VR{dr6} dr7=%016VR{dr7}\n"
1472	"gdtr=%016VR{gdtr_base}:%04VR{gdtr_lim} idtr=%016VR{idtr_base}:%04VR{idtr_lim} rflags=%08VR{rflags}\n"
1473	"ldtr={%04VR{ldtr} base=%016VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%08VR{ldtr_attr}}\n"
1474	"tr ={%04VR{tr} base=%016VR{tr_base} limit=%08VR{tr_lim} flags=%08VR{tr_attr}}\n"
1475	" sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1476	" efer=%016VR{efer}\n"
1477	" pat=%016VR{pat}\n"
1478	" sf_mask=%016VR{sf_mask}\n"
1479	"krnl_gs_base=%016VR{krnl_gs_base}\n"
1480	" lstar=%016VR{lstar}\n"
1481	" star=%016VR{star} cstar=%016VR{cstar}\n"
1482	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1483	);
1484	else
1485	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1486	"u %04VR{cs}:%08VR{eip} L 0\n"
1487	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1488	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1489	"cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} dr0=%08VR{dr0} dr1=%08VR{dr1}\n"
1490	"ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} dr2=%08VR{dr2} dr3=%08VR{dr3}\n"
1491	"es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} dr6=%08VR{dr6} dr7=%08VR{dr7}\n"
1492	"fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr0=%08VR{cr0} cr2=%08VR{cr2}\n"
1493	"gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr3=%08VR{cr3} cr4=%08VR{cr4}\n"
1494	"ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}} cr8=%08VR{cr8}\n"
1495	"gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} idtr=%08VR{idtr_base}:%04VR{idtr_lim} eflags=%08VR{eflags}\n"
1496	"ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1497	"tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1498	"sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1499	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1500	);
1501	}
1502	if (RT_FAILURE(rc))
1503	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1504	char *pszRegs = strchr(szDisAndRegs, '\n');
1505	*pszRegs++ = '\0';
1506	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1507
1508	/*
1509	* Disassemble one instruction at cs:[r\|e]ip.
1510	*/
1511	if (!f64BitMode && strstr(pszRegs, " vm ")) /* a big ugly... */
1512	return pCmdHlp->pfnExec(pCmdHlp, "uv86 %s", szDisAndRegs + 2);
1513	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1514	}
1515	return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, "");
1516	}
1517
1518
1519	/**
1520	* @interface_method_impl{FNDBCCMD, The 'rh' command.}
1521	*/
1522	static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1523	{
1524	/*
1525	* Show all registers our selves.
1526	*/
1527	if (cArgs == 0)
1528	{
1529	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1530	char szDisAndRegs[8192];
1531	int rc;
1532
1533	if (pDbgc->fRegTerse)
1534	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1535	"u %VR{cs}:%VR{eip} L 0\n"
1536	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1537	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1538	".cs=%04VR{cs} .ds=%04VR{ds} .es=%04VR{es} .fs=%04VR{fs} .gs=%04VR{gs} .ss=%04VR{ss} .eflags=%08VR{eflags}\n");
1539	else
1540	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1541	"u %04VR{cs}:%08VR{eip} L 0\n"
1542	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1543	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1544	".cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} .dr0=%08VR{dr0} .dr1=%08VR{dr1}\n"
1545	".ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} .dr2=%08VR{dr2} .dr3=%08VR{dr3}\n"
1546	".es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} .dr6=%08VR{dr6} .dr6=%08VR{dr6}\n"
1547	".fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} .cr3=%016VR{cr3}\n"
1548	".gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}}\n"
1549	".ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1550	".gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} .idtr=%08VR{idtr_base}:%04VR{idtr_lim} .eflags=%08VR{eflags}\n"
1551	".ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1552	".tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1553	);
1554	if (RT_FAILURE(rc))
1555	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1556	char *pszRegs = strchr(szDisAndRegs, '\n');
1557	*pszRegs++ = '\0';
1558	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1559
1560	/*
1561	* Disassemble one instruction at cs:[r\|e]ip.
1562	*/
1563	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1564	}
1565	return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, ".");
1566	}
1567
1568
1569	/**
1570	* @interface_method_impl{FNDBCCMD, The 'rt' command.}
1571	*/
1572	static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1573	{
1574	NOREF(pCmd); NOREF(pUVM); NOREF(paArgs); NOREF(cArgs);
1575
1576	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1577	pDbgc->fRegTerse = !pDbgc->fRegTerse;
1578	return DBGCCmdHlpPrintf(pCmdHlp, pDbgc->fRegTerse ? "info: Terse register info.\n" : "info: Verbose register info.\n");
1579	}
1580
1581
1582	/**
1583	* @interface_method_impl{FNDBCCMD, The 't' command.}
1584	*/
1585	static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1586	{
1587	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1588
1589	int rc = DBGFR3Step(pUVM, pDbgc->idCpu);
1590	if (RT_SUCCESS(rc))
1591	pDbgc->fReady = false;
1592	else
1593	rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to single step VM %p\n", pDbgc->pVM);
1594
1595	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
1596	return rc;
1597	}
1598
1599
1600	/**
1601	* @interface_method_impl{FNDBCCMD, The 'k', 'kg' and 'kh' commands.}
1602	*/
1603	static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1604	{
1605	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1606
1607	/*
1608	* Figure which context we're called for and start walking that stack.
1609	*/
1610	int rc;
1611	PCDBGFSTACKFRAME pFirstFrame;
1612	bool const fGuest = pCmd->pszCmd[1] == 'g'
1613	\|\| (!pCmd->pszCmd[1] && pDbgc->fRegCtxGuest);
1614	rc = DBGFR3StackWalkBegin(pUVM, pDbgc->idCpu, fGuest ? DBGFCODETYPE_GUEST : DBGFCODETYPE_HYPER, &pFirstFrame);
1615	if (RT_FAILURE(rc))
1616	return DBGCCmdHlpPrintf(pCmdHlp, "Failed to begin stack walk, rc=%Rrc\n", rc);
1617
1618	/*
1619	* Print header.
1620	* 12345678 12345678 0023:87654321 12345678 87654321 12345678 87654321 symbol
1621	*/
1622	uint32_t fBitFlags = 0;
1623	for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
1624	pFrame;
1625	pFrame = DBGFR3StackWalkNext(pFrame))
1626	{
1627	uint32_t const fCurBitFlags = pFrame->fFlags & (DBGFSTACKFRAME_FLAGS_16BIT \| DBGFSTACKFRAME_FLAGS_32BIT \| DBGFSTACKFRAME_FLAGS_64BIT);
1628	if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_16BIT)
1629	{
1630	if (fCurBitFlags != fBitFlags)
1631	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "SS:BP Ret SS:BP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1632	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04RX16:%04RX16 %04RX16:%04RX16 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1633	pFrame->AddrFrame.Sel,
1634	(uint16_t)pFrame->AddrFrame.off,
1635	pFrame->AddrReturnFrame.Sel,
1636	(uint16_t)pFrame->AddrReturnFrame.off,
1637	(uint32_t)pFrame->AddrReturnPC.Sel,
1638	(uint32_t)pFrame->AddrReturnPC.off,
1639	pFrame->Args.au32[0],
1640	pFrame->Args.au32[1],
1641	pFrame->Args.au32[2],
1642	pFrame->Args.au32[3]);
1643	}
1644	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT)
1645	{
1646	if (fCurBitFlags != fBitFlags)
1647	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1648	rc = DBGCCmdHlpPrintf(pCmdHlp, "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1649	(uint32_t)pFrame->AddrFrame.off,
1650	(uint32_t)pFrame->AddrReturnFrame.off,
1651	(uint32_t)pFrame->AddrReturnPC.Sel,
1652	(uint32_t)pFrame->AddrReturnPC.off,
1653	pFrame->Args.au32[0],
1654	pFrame->Args.au32[1],
1655	pFrame->Args.au32[2],
1656	pFrame->Args.au32[3]);
1657	}
1658	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT)
1659	{
1660	if (fCurBitFlags != fBitFlags)
1661	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "RBP Ret SS:RBP Ret RIP CS:RIP / Symbol [line]\n");
1662	rc = DBGCCmdHlpPrintf(pCmdHlp, "%016RX64 %04RX16:%016RX64 %016RX64",
1663	(uint64_t)pFrame->AddrFrame.off,
1664	pFrame->AddrReturnFrame.Sel,
1665	(uint64_t)pFrame->AddrReturnFrame.off,
1666	(uint64_t)pFrame->AddrReturnPC.off);
1667	}
1668	if (RT_FAILURE(rc))
1669	break;
1670	if (!pFrame->pSymPC)
1671	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1672	fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1673	? " %RTsel:%016RGv"
1674	: fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT
1675	? " %RTsel:%08RGv"
1676	: " %RTsel:%04RGv"
1677	, pFrame->AddrPC.Sel, pFrame->AddrPC.off);
1678	else
1679	{
1680	RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value; /** @todo this isn't 100% correct for segmented stuff. */
1681	if (offDisp > 0)
1682	rc = DBGCCmdHlpPrintf(pCmdHlp, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
1683	else if (offDisp < 0)
1684	rc = DBGCCmdHlpPrintf(pCmdHlp, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
1685	else
1686	rc = DBGCCmdHlpPrintf(pCmdHlp, " %s", pFrame->pSymPC->szName);
1687	}
1688	if (RT_SUCCESS(rc) && pFrame->pLinePC)
1689	rc = DBGCCmdHlpPrintf(pCmdHlp, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
1690	if (RT_SUCCESS(rc))
1691	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
1692	if (RT_FAILURE(rc))
1693	break;
1694
1695	fBitFlags = fCurBitFlags;
1696	}
1697
1698	DBGFR3StackWalkEnd(pFirstFrame);
1699
1700	NOREF(paArgs); NOREF(cArgs);
1701	return rc;
1702	}
1703
1704
1705	static int dbgcCmdDumpDTWorker64(PDBGCCMDHLP pCmdHlp, PCX86DESC64 pDesc, unsigned iEntry, bool fHyper, bool *pfDblEntry)
1706	{
1707	/* GUEST64 */
1708	int rc;
1709
1710	const char *pszHyper = fHyper ? " HYPER" : "";
1711	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1712	if (pDesc->Gen.u1DescType)
1713	{
1714	static const char * const s_apszTypes[] =
1715	{
1716	"DataRO", /* 0 Read-Only */
1717	"DataRO", /* 1 Read-Only - Accessed */
1718	"DataRW", /* 2 Read/Write */
1719	"DataRW", /* 3 Read/Write - Accessed */
1720	"DownRO", /* 4 Expand-down, Read-Only */
1721	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1722	"DownRW", /* 6 Expand-down, Read/Write */
1723	"DownRW", /* 7 Expand-down, Read/Write - Accessed */
1724	"CodeEO", /* 8 Execute-Only */
1725	"CodeEO", /* 9 Execute-Only - Accessed */
1726	"CodeER", /* A Execute/Readable */
1727	"CodeER", /* B Execute/Readable - Accessed */
1728	"ConfE0", /* C Conforming, Execute-Only */
1729	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1730	"ConfER", /* E Conforming, Execute/Readable */
1731	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1732	};
1733	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1734	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1735	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1736	uint32_t u32Base = X86DESC_BASE(pDesc);
1737	uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1738
1739	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1740	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1741	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1742	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1743	}
1744	else
1745	{
1746	static const char * const s_apszTypes[] =
1747	{
1748	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1749	"Ill-1 ", /* 1 0001 Available 16-bit TSS */
1750	"LDT ", /* 2 0010 LDT */
1751	"Ill-3 ", /* 3 0011 Busy 16-bit TSS */
1752	"Ill-4 ", /* 4 0100 16-bit Call Gate */
1753	"Ill-5 ", /* 5 0101 Task Gate */
1754	"Ill-6 ", /* 6 0110 16-bit Interrupt Gate */
1755	"Ill-7 ", /* 7 0111 16-bit Trap Gate */
1756	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1757	"Tss64A", /* 9 1001 Available 32-bit TSS */
1758	"Ill-A ", /* A 1010 Reserved (Illegal) */
1759	"Tss64B", /* B 1011 Busy 32-bit TSS */
1760	"Call64", /* C 1100 32-bit Call Gate */
1761	"Ill-D ", /* D 1101 Reserved (Illegal) */
1762	"Int64 ", /* E 1110 32-bit Interrupt Gate */
1763	"Trap64" /* F 1111 32-bit Trap Gate */
1764	};
1765	switch (pDesc->Gen.u4Type)
1766	{
1767	/* raw */
1768	case X86_SEL_TYPE_SYS_UNDEFINED:
1769	case X86_SEL_TYPE_SYS_UNDEFINED2:
1770	case X86_SEL_TYPE_SYS_UNDEFINED4:
1771	case X86_SEL_TYPE_SYS_UNDEFINED3:
1772	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1773	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1774	case X86_SEL_TYPE_SYS_286_CALL_GATE:
1775	case X86_SEL_TYPE_SYS_286_INT_GATE:
1776	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1777	case X86_SEL_TYPE_SYS_TASK_GATE:
1778	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1779	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1780	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1781	break;
1782
1783	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1784	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1785	case X86_SEL_TYPE_SYS_LDT:
1786	{
1787	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1788	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1789	const char *pszLong = pDesc->Gen.u1Long ? "LONG" : " ";
1790
1791	uint64_t u64Base = X86DESC64_BASE(pDesc);
1792	uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1793
1794	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%016RX64 Lim=%08x DPL=%d %s %s %s %sAVL=%d R=%d%s\n",
1795	iEntry, s_apszTypes[pDesc->Gen.u4Type], u64Base, cbLimit,
1796	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszLong, pszBig,
1797	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1798	pszHyper);
1799	if (pfDblEntry)
1800	*pfDblEntry = true;
1801	break;
1802	}
1803
1804	case X86_SEL_TYPE_SYS_386_CALL_GATE:
1805	{
1806	unsigned cParams = pDesc->au8[4] & 0x1f;
1807	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1808	RTSEL sel = pDesc->au16[1];
1809	uint64_t off = pDesc->au16[0]
1810	\| ((uint64_t)pDesc->au16[3] << 16)
1811	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1812	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s %s=%d%s\n",
1813	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1814	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1815	if (pfDblEntry)
1816	*pfDblEntry = true;
1817	break;
1818	}
1819
1820	case X86_SEL_TYPE_SYS_386_INT_GATE:
1821	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1822	{
1823	RTSEL sel = pDesc->au16[1];
1824	uint64_t off = pDesc->au16[0]
1825	\| ((uint64_t)pDesc->au16[3] << 16)
1826	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1827	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s%s\n",
1828	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1829	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1830	if (pfDblEntry)
1831	*pfDblEntry = true;
1832	break;
1833	}
1834
1835	/* impossible, just it's necessary to keep gcc happy. */
1836	default:
1837	return VINF_SUCCESS;
1838	}
1839	}
1840	return VINF_SUCCESS;
1841	}
1842
1843
1844	/**
1845	* Worker function that displays one descriptor entry (GDT, LDT, IDT).
1846	*
1847	* @returns pfnPrintf status code.
1848	* @param pCmdHlp The DBGC command helpers.
1849	* @param pDesc The descriptor to display.
1850	* @param iEntry The descriptor entry number.
1851	* @param fHyper Whether the selector belongs to the hypervisor or not.
1852	*/
1853	static int dbgcCmdDumpDTWorker32(PDBGCCMDHLP pCmdHlp, PCX86DESC pDesc, unsigned iEntry, bool fHyper)
1854	{
1855	int rc;
1856
1857	const char *pszHyper = fHyper ? " HYPER" : "";
1858	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1859	if (pDesc->Gen.u1DescType)
1860	{
1861	static const char * const s_apszTypes[] =
1862	{
1863	"DataRO", /* 0 Read-Only */
1864	"DataRO", /* 1 Read-Only - Accessed */
1865	"DataRW", /* 2 Read/Write */
1866	"DataRW", /* 3 Read/Write - Accessed */
1867	"DownRO", /* 4 Expand-down, Read-Only */
1868	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1869	"DownRW", /* 6 Expand-down, Read/Write */
1870	"DownRW", /* 7 Expand-down, Read/Write - Accessed */
1871	"CodeEO", /* 8 Execute-Only */
1872	"CodeEO", /* 9 Execute-Only - Accessed */
1873	"CodeER", /* A Execute/Readable */
1874	"CodeER", /* B Execute/Readable - Accessed */
1875	"ConfE0", /* C Conforming, Execute-Only */
1876	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1877	"ConfER", /* E Conforming, Execute/Readable */
1878	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1879	};
1880	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1881	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1882	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1883	uint32_t u32Base = pDesc->Gen.u16BaseLow
1884	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1885	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1886	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1887	if (pDesc->Gen.u1Granularity)
1888	cbLimit <<= PAGE_SHIFT;
1889
1890	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1891	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1892	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1893	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1894	}
1895	else
1896	{
1897	static const char * const s_apszTypes[] =
1898	{
1899	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1900	"Tss16A", /* 1 0001 Available 16-bit TSS */
1901	"LDT ", /* 2 0010 LDT */
1902	"Tss16B", /* 3 0011 Busy 16-bit TSS */
1903	"Call16", /* 4 0100 16-bit Call Gate */
1904	"TaskG ", /* 5 0101 Task Gate */
1905	"Int16 ", /* 6 0110 16-bit Interrupt Gate */
1906	"Trap16", /* 7 0111 16-bit Trap Gate */
1907	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1908	"Tss32A", /* 9 1001 Available 32-bit TSS */
1909	"Ill-A ", /* A 1010 Reserved (Illegal) */
1910	"Tss32B", /* B 1011 Busy 32-bit TSS */
1911	"Call32", /* C 1100 32-bit Call Gate */
1912	"Ill-D ", /* D 1101 Reserved (Illegal) */
1913	"Int32 ", /* E 1110 32-bit Interrupt Gate */
1914	"Trap32" /* F 1111 32-bit Trap Gate */
1915	};
1916	switch (pDesc->Gen.u4Type)
1917	{
1918	/* raw */
1919	case X86_SEL_TYPE_SYS_UNDEFINED:
1920	case X86_SEL_TYPE_SYS_UNDEFINED2:
1921	case X86_SEL_TYPE_SYS_UNDEFINED4:
1922	case X86_SEL_TYPE_SYS_UNDEFINED3:
1923	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1924	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1925	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1926	break;
1927
1928	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1929	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1930	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1931	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1932	case X86_SEL_TYPE_SYS_LDT:
1933	{
1934	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1935	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1936	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1937	uint32_t u32Base = pDesc->Gen.u16BaseLow
1938	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1939	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1940	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1941	if (pDesc->Gen.u1Granularity)
1942	cbLimit <<= PAGE_SHIFT;
1943
1944	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
1945	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1946	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszGranularity, pszBig,
1947	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1948	pszHyper);
1949	break;
1950	}
1951
1952	case X86_SEL_TYPE_SYS_TASK_GATE:
1953	{
1954	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s TSS=%04x DPL=%d %s%s\n",
1955	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc->au16[1],
1956	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1957	break;
1958	}
1959
1960	case X86_SEL_TYPE_SYS_286_CALL_GATE:
1961	case X86_SEL_TYPE_SYS_386_CALL_GATE:
1962	{
1963	unsigned cParams = pDesc->au8[4] & 0x1f;
1964	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1965	RTSEL sel = pDesc->au16[1];
1966	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
1967	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%08x DPL=%d %s %s=%d%s\n",
1968	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1969	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1970	break;
1971	}
1972
1973	case X86_SEL_TYPE_SYS_286_INT_GATE:
1974	case X86_SEL_TYPE_SYS_386_INT_GATE:
1975	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1976	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1977	{
1978	RTSEL sel = pDesc->au16[1];
1979	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
1980	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%08x DPL=%d %s%s\n",
1981	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1982	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1983	break;
1984	}
1985
1986	/* impossible, just it's necessary to keep gcc happy. */
1987	default:
1988	return VINF_SUCCESS;
1989	}
1990	}
1991	return rc;
1992	}
1993
1994
1995	/**
1996	* @interface_method_impl{FNDBCCMD, The 'dg', 'dga', 'dl' and 'dla' commands.}
1997	*/
1998	static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1999	{
2000	/*
2001	* Validate input.
2002	*/
2003	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2004
2005	/*
2006	* Get the CPU mode, check which command variation this is
2007	* and fix a default parameter if needed.
2008	*/
2009	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2010	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
2011	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2012	bool fGdt = pCmd->pszCmd[1] == 'g';
2013	bool fAll = pCmd->pszCmd[2] == 'a';
2014	RTSEL SelTable = fGdt ? 0 : X86_SEL_LDT;
2015
2016	DBGCVAR Var;
2017	if (!cArgs)
2018	{
2019	cArgs = 1;
2020	paArgs = &Var;
2021	Var.enmType = DBGCVAR_TYPE_NUMBER;
2022	Var.u.u64Number = 0;
2023	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2024	Var.u64Range = 1024;
2025	}
2026
2027	/*
2028	* Process the arguments.
2029	*/
2030	for (unsigned i = 0; i < cArgs; i++)
2031	{
2032	/*
2033	* Retrieve the selector value from the argument.
2034	* The parser may confuse pointers and numbers if more than one
2035	* argument is given, that that into account.
2036	*/
2037	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[i].enmType));
2038	uint64_t u64;
2039	unsigned cSels = 1;
2040	switch (paArgs[i].enmType)
2041	{
2042	case DBGCVAR_TYPE_NUMBER:
2043	u64 = paArgs[i].u.u64Number;
2044	if (paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE)
2045	cSels = RT_MIN(paArgs[i].u64Range, 1024);
2046	break;
2047	case DBGCVAR_TYPE_GC_FAR: u64 = paArgs[i].u.GCFar.sel; break;
2048	case DBGCVAR_TYPE_GC_FLAT: u64 = paArgs[i].u.GCFlat; break;
2049	case DBGCVAR_TYPE_GC_PHYS: u64 = paArgs[i].u.GCPhys; break;
2050	case DBGCVAR_TYPE_HC_FLAT: u64 = (uintptr_t)paArgs[i].u.pvHCFlat; break;
2051	case DBGCVAR_TYPE_HC_PHYS: u64 = paArgs[i].u.HCPhys; break;
2052	default: u64 = _64K; break;
2053	}
2054	if (u64 < _64K)
2055	{
2056	unsigned Sel = (RTSEL)u64;
2057
2058	/*
2059	* Dump the specified range.
2060	*/
2061	bool fSingle = cSels == 1;
2062	while ( cSels-- > 0
2063	&& Sel < _64K)
2064	{
2065	DBGFSELINFO SelInfo;
2066	int rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, Sel \| SelTable, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
2067	if (RT_SUCCESS(rc))
2068	{
2069	if (SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE)
2070	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x RealM Bas=%04x Lim=%04x\n",
2071	Sel, (unsigned)SelInfo.GCPtrBase, (unsigned)SelInfo.cbLimit);
2072	else if ( fAll
2073	\|\| fSingle
2074	\|\| SelInfo.u.Raw.Gen.u1Present)
2075	{
2076	if (enmMode == CPUMMODE_PROTECTED)
2077	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &SelInfo.u.Raw, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER));
2078	else
2079	{
2080	bool fDblSkip = false;
2081	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &SelInfo.u.Raw64, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER), &fDblSkip);
2082	if (fDblSkip)
2083	Sel += 4;
2084	}
2085	}
2086	}
2087	else
2088	{
2089	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %Rrc\n", Sel, rc);
2090	if (!fAll)
2091	return rc;
2092	}
2093	if (RT_FAILURE(rc))
2094	return rc;
2095
2096	/* next */
2097	Sel += 8;
2098	}
2099	}
2100	else
2101	DBGCCmdHlpPrintf(pCmdHlp, "error: %llx is out of bounds\n", u64);
2102	}
2103
2104	return VINF_SUCCESS;
2105	}
2106
2107
2108	/**
2109	* @interface_method_impl{FNDBCCMD, The 'di' and 'dia' commands.}
2110	*/
2111	static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2112	{
2113	/*
2114	* Validate input.
2115	*/
2116	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2117
2118	/*
2119	* Establish some stuff like the current IDTR and CPU mode,
2120	* and fix a default parameter.
2121	*/
2122	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2123	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
2124	uint16_t cbLimit;
2125	RTGCUINTPTR GCPtrBase = CPUMGetGuestIDTR(pVCpu, &cbLimit);
2126	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2127	unsigned cbEntry;
2128	switch (enmMode)
2129	{
2130	case CPUMMODE_REAL: cbEntry = sizeof(RTFAR16); break;
2131	case CPUMMODE_PROTECTED: cbEntry = sizeof(X86DESC); break;
2132	case CPUMMODE_LONG: cbEntry = sizeof(X86DESC64); break;
2133	default:
2134	return DBGCCmdHlpPrintf(pCmdHlp, "error: Invalid CPU mode %d.\n", enmMode);
2135	}
2136
2137	bool fAll = pCmd->pszCmd[2] == 'a';
2138	DBGCVAR Var;
2139	if (!cArgs)
2140	{
2141	cArgs = 1;
2142	paArgs = &Var;
2143	Var.enmType = DBGCVAR_TYPE_NUMBER;
2144	Var.u.u64Number = 0;
2145	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2146	Var.u64Range = 256;
2147	}
2148
2149	/*
2150	* Process the arguments.
2151	*/
2152	for (unsigned i = 0; i < cArgs; i++)
2153	{
2154	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER);
2155	if (paArgs[i].u.u64Number < 256)
2156	{
2157	RTGCUINTPTR iInt = (RTGCUINTPTR)paArgs[i].u.u64Number;
2158	unsigned cInts = paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE
2159	? paArgs[i].u64Range
2160	: 1;
2161	bool fSingle = cInts == 1;
2162	while ( cInts-- > 0
2163	&& iInt < 256)
2164	{
2165	/*
2166	* Try read it.
2167	*/
2168	union
2169	{
2170	RTFAR16 Real;
2171	X86DESC Prot;
2172	X86DESC64 Long;
2173	} u;
2174	if (iInt * cbEntry + (cbEntry - 1) > cbLimit)
2175	{
2176	DBGCCmdHlpPrintf(pCmdHlp, "%04x not within the IDT\n", (unsigned)iInt);
2177	if (!fAll && !fSingle)
2178	return VINF_SUCCESS;
2179	}
2180	DBGCVAR AddrVar;
2181	AddrVar.enmType = DBGCVAR_TYPE_GC_FLAT;
2182	AddrVar.u.GCFlat = GCPtrBase + iInt * cbEntry;
2183	AddrVar.enmRangeType = DBGCVAR_RANGE_NONE;
2184	int rc = pCmdHlp->pfnMemRead(pCmdHlp, &u, cbEntry, &AddrVar, NULL);
2185	if (RT_FAILURE(rc))
2186	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading IDT entry %#04x.\n", (unsigned)iInt);
2187
2188	/*
2189	* Display it.
2190	*/
2191	switch (enmMode)
2192	{
2193	case CPUMMODE_REAL:
2194	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %RTfp16\n", (unsigned)iInt, u.Real);
2195	/** @todo resolve 16:16 IDTE to a symbol */
2196	break;
2197	case CPUMMODE_PROTECTED:
2198	if (fAll \|\| fSingle \|\| u.Prot.Gen.u1Present)
2199	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &u.Prot, iInt, false);
2200	break;
2201	case CPUMMODE_LONG:
2202	if (fAll \|\| fSingle \|\| u.Long.Gen.u1Present)
2203	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &u.Long, iInt, false, NULL);
2204	break;
2205	default: break; /* to shut up gcc */
2206	}
2207	if (RT_FAILURE(rc))
2208	return rc;
2209
2210	/* next */
2211	iInt++;
2212	}
2213	}
2214	else
2215	DBGCCmdHlpPrintf(pCmdHlp, "error: %llx is out of bounds (max 256)\n", paArgs[i].u.u64Number);
2216	}
2217
2218	return VINF_SUCCESS;
2219	}
2220
2221
2222	/**
2223	* @interface_method_impl{FNDBCCMD, The 'da', 'dq', 'dd', 'dw' and 'db'
2224	* commands.}
2225	*/
2226	static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2227	{
2228	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2229
2230	/*
2231	* Validate input.
2232	*/
2233	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2234	if (cArgs == 1)
2235	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2236	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2237
2238	/*
2239	* Figure out the element size.
2240	*/
2241	unsigned cbElement;
2242	bool fAscii = false;
2243	switch (pCmd->pszCmd[1])
2244	{
2245	default:
2246	case 'b': cbElement = 1; break;
2247	case 'w': cbElement = 2; break;
2248	case 'd': cbElement = 4; break;
2249	case 'q': cbElement = 8; break;
2250	case 'a':
2251	cbElement = 1;
2252	fAscii = true;
2253	break;
2254	case '\0':
2255	fAscii = !!(pDbgc->cbDumpElement & 0x80000000);
2256	cbElement = pDbgc->cbDumpElement & 0x7fffffff;
2257	if (!cbElement)
2258	cbElement = 1;
2259	break;
2260	}
2261
2262	/*
2263	* Find address.
2264	*/
2265	if (!cArgs)
2266	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_NONE;
2267	else
2268	pDbgc->DumpPos = paArgs[0];
2269
2270	/*
2271	* Range.
2272	*/
2273	switch (pDbgc->DumpPos.enmRangeType)
2274	{
2275	case DBGCVAR_RANGE_NONE:
2276	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2277	pDbgc->DumpPos.u64Range = 0x60;
2278	break;
2279
2280	case DBGCVAR_RANGE_ELEMENTS:
2281	if (pDbgc->DumpPos.u64Range > 2048)
2282	return DBGCCmdHlpPrintf(pCmdHlp, "error: Too many elements requested. Max is 2048 elements.\n");
2283	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2284	pDbgc->DumpPos.u64Range = (cbElement ? cbElement : 1) * pDbgc->DumpPos.u64Range;
2285	break;
2286
2287	case DBGCVAR_RANGE_BYTES:
2288	if (pDbgc->DumpPos.u64Range > 65536)
2289	return DBGCCmdHlpPrintf(pCmdHlp, "error: The requested range is too big. Max is 64KB.\n");
2290	break;
2291
2292	default:
2293	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: Unknown range type %d.\n", pDbgc->DumpPos.enmRangeType);
2294	}
2295
2296	pDbgc->pLastPos = &pDbgc->DumpPos;
2297
2298	/*
2299	* Do the dumping.
2300	*/
2301	pDbgc->cbDumpElement = cbElement \| (fAscii << 31);
2302	int cbLeft = (int)pDbgc->DumpPos.u64Range;
2303	uint8_t u8Prev = '\0';
2304	for (;;)
2305	{
2306	/*
2307	* Read memory.
2308	*/
2309	char achBuffer[16];
2310	size_t cbReq = RT_MIN((int)sizeof(achBuffer), cbLeft);
2311	size_t cb = RT_MIN((int)sizeof(achBuffer), cbLeft);
2312	int rc = pCmdHlp->pfnMemRead(pCmdHlp, &achBuffer, cbReq, &pDbgc->DumpPos, &cb);
2313	if (RT_FAILURE(rc))
2314	{
2315	if (u8Prev && u8Prev != '\n')
2316	DBGCCmdHlpPrintf(pCmdHlp, "\n");
2317	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading memory at %DV.\n", &pDbgc->DumpPos);
2318	}
2319
2320	/*
2321	* Display it.
2322	*/
2323	memset(&achBuffer[cb], 0, sizeof(achBuffer) - cb);
2324	if (!fAscii)
2325	{
2326	DBGCCmdHlpPrintf(pCmdHlp, "%DV:", &pDbgc->DumpPos);
2327	unsigned i;
2328	for (i = 0; i < cb; i += cbElement)
2329	{
2330	const char *pszSpace = " ";
2331	if (cbElement <= 2 && i == 8 && !fAscii)
2332	pszSpace = "-";
2333	switch (cbElement)
2334	{
2335	case 1: DBGCCmdHlpPrintf(pCmdHlp, "%s%02x", pszSpace, (uint8_t )&achBuffer[i]); break;
2336	case 2: DBGCCmdHlpPrintf(pCmdHlp, "%s%04x", pszSpace, (uint16_t )&achBuffer[i]); break;
2337	case 4: DBGCCmdHlpPrintf(pCmdHlp, "%s%08x", pszSpace, (uint32_t )&achBuffer[i]); break;
2338	case 8: DBGCCmdHlpPrintf(pCmdHlp, "%s%016llx", pszSpace, (uint64_t )&achBuffer[i]); break;
2339	}
2340	}
2341
2342	/* chars column */
2343	if (pDbgc->cbDumpElement == 1)
2344	{
2345	while (i++ < sizeof(achBuffer))
2346	DBGCCmdHlpPrintf(pCmdHlp, " ");
2347	DBGCCmdHlpPrintf(pCmdHlp, " ");
2348	for (i = 0; i < cb; i += cbElement)
2349	{
2350	uint8_t u8 = (uint8_t )&achBuffer[i];
2351	if (RT_C_IS_PRINT(u8) && u8 < 127 && u8 >= 32)
2352	DBGCCmdHlpPrintf(pCmdHlp, "%c", u8);
2353	else
2354	DBGCCmdHlpPrintf(pCmdHlp, ".");
2355	}
2356	}
2357	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2358	}
2359	else
2360	{
2361	/*
2362	* We print up to the first zero and stop there.
2363	* Only printables + '\t' and '\n' are printed.
2364	*/
2365	if (!u8Prev)
2366	DBGCCmdHlpPrintf(pCmdHlp, "%DV:\n", &pDbgc->DumpPos);
2367	uint8_t u8 = '\0';
2368	unsigned i;
2369	for (i = 0; i < cb; i++)
2370	{
2371	u8Prev = u8;
2372	u8 = (uint8_t )&achBuffer[i];
2373	if ( u8 < 127
2374	&& ( (RT_C_IS_PRINT(u8) && u8 >= 32)
2375	\|\| u8 == '\t'
2376	\|\| u8 == '\n'))
2377	DBGCCmdHlpPrintf(pCmdHlp, "%c", u8);
2378	else if (!u8)
2379	break;
2380	else
2381	DBGCCmdHlpPrintf(pCmdHlp, "\\x%x", u8);
2382	}
2383	if (u8 == '\0')
2384	cb = cbLeft = i + 1;
2385	if (cbLeft - cb <= 0 && u8Prev != '\n')
2386	DBGCCmdHlpPrintf(pCmdHlp, "\n");
2387	}
2388
2389	/*
2390	* Advance
2391	*/
2392	cbLeft -= (int)cb;
2393	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DumpPos, "(%Dv) + %x", &pDbgc->DumpPos, cb);
2394	if (RT_FAILURE(rc))
2395	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DumpPos, cb);
2396	if (cbLeft <= 0)
2397	break;
2398	}
2399
2400	NOREF(pCmd);
2401	return VINF_SUCCESS;
2402	}
2403
2404
2405	/**
2406	* Best guess at which paging mode currently applies to the guest
2407	* paging structures.
2408	*
2409	* This have to come up with a decent answer even when the guest
2410	* is in non-paged protected mode or real mode.
2411	*
2412	* @returns cr3.
2413	* @param pDbgc The DBGC instance.
2414	* @param pfPAE Where to store the page address extension indicator.
2415	* @param pfLME Where to store the long mode enabled indicator.
2416	* @param pfPSE Where to store the page size extension indicator.
2417	* @param pfPGE Where to store the page global enabled indicator.
2418	* @param pfNXE Where to store the no-execution enabled indicator.
2419	*/
2420	static RTGCPHYS dbgcGetGuestPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2421	{
2422	PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2423	RTGCUINTREG cr4 = CPUMGetGuestCR4(pVCpu);
2424	*pfPSE = !!(cr4 & X86_CR4_PSE);
2425	*pfPGE = !!(cr4 & X86_CR4_PGE);
2426	if (cr4 & X86_CR4_PAE)
2427	{
2428	*pfPSE = true;
2429	*pfPAE = true;
2430	}
2431	else
2432	*pfPAE = false;
2433
2434	*pfLME = CPUMGetGuestMode(pVCpu) == CPUMMODE_LONG;
2435	pfNXE = false; / GUEST64 GUESTNX */
2436	return CPUMGetGuestCR3(pVCpu);
2437	}
2438
2439
2440	/**
2441	* Determine the shadow paging mode.
2442	*
2443	* @returns cr3.
2444	* @param pDbgc The DBGC instance.
2445	* @param pfPAE Where to store the page address extension indicator.
2446	* @param pfLME Where to store the long mode enabled indicator.
2447	* @param pfPSE Where to store the page size extension indicator.
2448	* @param pfPGE Where to store the page global enabled indicator.
2449	* @param pfNXE Where to store the no-execution enabled indicator.
2450	*/
2451	static RTHCPHYS dbgcGetShadowPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2452	{
2453	PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2454
2455	*pfPSE = true;
2456	*pfPGE = false;
2457	switch (PGMGetShadowMode(pVCpu))
2458	{
2459	default:
2460	case PGMMODE_32_BIT:
2461	pfPAE = pfLME = *pfNXE = false;
2462	break;
2463	case PGMMODE_PAE:
2464	pfLME = pfNXE = false;
2465	*pfPAE = true;
2466	break;
2467	case PGMMODE_PAE_NX:
2468	*pfLME = false;
2469	pfPAE = pfNXE = true;
2470	break;
2471	case PGMMODE_AMD64:
2472	*pfNXE = false;
2473	pfPAE = pfLME = true;
2474	break;
2475	case PGMMODE_AMD64_NX:
2476	pfPAE = pfLME = *pfNXE = true;
2477	break;
2478	}
2479	return PGMGetHyperCR3(pVCpu);
2480	}
2481
2482
2483	/**
2484	* @interface_method_impl{FNDBCCMD, The 'dpd', 'dpda', 'dpdb', 'dpdg' and 'dpdh'
2485	* commands.}
2486	*/
2487	static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2488	{
2489	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2490
2491	/*
2492	* Validate input.
2493	*/
2494	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2495	if (cArgs == 1 && pCmd->pszCmd[3] == 'a')
2496	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2497	if (cArgs == 1 && pCmd->pszCmd[3] != 'a')
2498	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2499	\|\| DBGCVAR_ISPOINTER(paArgs[0].enmType));
2500	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2501
2502	/*
2503	* Guest or shadow page directories? Get the paging parameters.
2504	*/
2505	bool fGuest = pCmd->pszCmd[3] != 'h';
2506	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2507	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2508	? pDbgc->fRegCtxGuest
2509	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2510
2511	bool fPAE, fLME, fPSE, fPGE, fNXE;
2512	uint64_t cr3 = fGuest
2513	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2514	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2515	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2516
2517	/*
2518	* Setup default argument if none was specified.
2519	* Fix address / index confusion.
2520	*/
2521	DBGCVAR VarDefault;
2522	if (!cArgs)
2523	{
2524	if (pCmd->pszCmd[3] == 'a')
2525	{
2526	if (fLME \|\| fPAE)
2527	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");
2528	if (fGuest)
2529	DBGCVAR_INIT_GC_PHYS(&VarDefault, cr3);
2530	else
2531	DBGCVAR_INIT_HC_PHYS(&VarDefault, cr3);
2532	}
2533	else
2534	DBGCVAR_INIT_GC_FLAT(&VarDefault, 0);
2535	paArgs = &VarDefault;
2536	cArgs = 1;
2537	}
2538	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
2539	{
2540	/* If it's a number (not an address), it's an index, so convert it to an address. */
2541	Assert(pCmd->pszCmd[3] != 'a');
2542	VarDefault = paArgs[0];
2543	if (fPAE)
2544	return DBGCCmdHlpPrintf(pCmdHlp, "PDE indexing is only implemented for 32-bit paging.\n");
2545	if (VarDefault.u.u64Number >= PAGE_SIZE / cbEntry)
2546	return DBGCCmdHlpPrintf(pCmdHlp, "PDE index is out of range [0..%d].\n", PAGE_SIZE / cbEntry - 1);
2547	VarDefault.u.u64Number <<= X86_PD_SHIFT;
2548	VarDefault.enmType = DBGCVAR_TYPE_GC_FLAT;
2549	paArgs = &VarDefault;
2550	}
2551
2552	/*
2553	* Locate the PDE to start displaying at.
2554	*
2555	* The 'dpda' command takes the address of a PDE, while the others are guest
2556	* virtual address which PDEs should be displayed. So, 'dpda' is rather simple
2557	* while the others require us to do all the tedious walking thru the paging
2558	* hierarchy to find the intended PDE.
2559	*/
2560	unsigned iEntry = ~0U; /* The page directory index. ~0U for 'dpta'. */
2561	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PDE (iEntry != ~0U). */
2562	DBGCVAR VarPDEAddr; /* The address of the current PDE. */
2563	unsigned cEntries; /* The number of entries to display. */
2564	unsigned cEntriesMax; /* The max number of entries to display. */
2565	int rc;
2566	if (pCmd->pszCmd[3] == 'a')
2567	{
2568	VarPDEAddr = paArgs[0];
2569	switch (VarPDEAddr.enmRangeType)
2570	{
2571	case DBGCVAR_RANGE_BYTES: cEntries = VarPDEAddr.u64Range / cbEntry; break;
2572	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPDEAddr.u64Range; break;
2573	default: cEntries = 10; break;
2574	}
2575	cEntriesMax = PAGE_SIZE / cbEntry;
2576	}
2577	else
2578	{
2579	/*
2580	* Determine the range.
2581	*/
2582	switch (paArgs[0].enmRangeType)
2583	{
2584	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2585	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2586	default: cEntries = 10; break;
2587	}
2588
2589	/*
2590	* Normalize the input address, it must be a flat GC address.
2591	*/
2592	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2593	if (RT_FAILURE(rc))
2594	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2595	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2596	{
2597	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2598	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2599	}
2600	if (fPAE)
2601	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_PAE_SHIFT) - 1);
2602	else
2603	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_SHIFT) - 1);
2604
2605	/*
2606	* Do the paging walk until we get to the page directory.
2607	*/
2608	DBGCVAR VarCur;
2609	if (fGuest)
2610	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2611	else
2612	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2613	if (fLME)
2614	{
2615	/* Page Map Level 4 Lookup. */
2616	/* Check if it's a valid address first? */
2617	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2618	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2619	X86PML4E Pml4e;
2620	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2621	if (RT_FAILURE(rc))
2622	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2623	if (!Pml4e.n.u1Present)
2624	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2625
2626	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2627	Assert(fPAE);
2628	}
2629	if (fPAE)
2630	{
2631	/* Page directory pointer table. */
2632	X86PDPE Pdpe;
2633	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2634	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2635	if (RT_FAILURE(rc))
2636	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2637	if (!Pdpe.n.u1Present)
2638	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2639
2640	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2641	VarPDEAddr = VarCur;
2642	VarPDEAddr.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2643	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDEPAE);
2644	}
2645	else
2646	{
2647	/* 32-bit legacy - CR3 == page directory. */
2648	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK;
2649	VarPDEAddr = VarCur;
2650	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDE);
2651	}
2652	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2653	}
2654
2655	/* adjust cEntries */
2656	cEntries = RT_MAX(1, cEntries);
2657	cEntries = RT_MIN(cEntries, cEntriesMax);
2658
2659	/*
2660	* The display loop.
2661	*/
2662	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (index %#x):\n" : "%DV:\n",
2663	&VarPDEAddr, iEntry);
2664	do
2665	{
2666	/*
2667	* Read.
2668	*/
2669	X86PDEPAE Pde;
2670	Pde.u = 0;
2671	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, cbEntry, &VarPDEAddr, NULL);
2672	if (RT_FAILURE(rc))
2673	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarPDEAddr);
2674
2675	/*
2676	* Display.
2677	*/
2678	if (iEntry != ~0U)
2679	{
2680	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2681	iEntry++;
2682	}
2683	if (fPSE && Pde.b.u1Size)
2684	DBGCCmdHlpPrintf(pCmdHlp,
2685	fPAE
2686	? "%016llx big phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2687	: "%08llx big phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2688	Pde.u,
2689	Pde.u & X86_PDE_PAE_PG_MASK,
2690	Pde.b.u1Present ? "p " : "np",
2691	Pde.b.u1Write ? "w" : "r",
2692	Pde.b.u1User ? "u" : "s",
2693	Pde.b.u1Accessed ? "a " : "na",
2694	Pde.b.u1Dirty ? "d " : "nd",
2695	Pde.b.u3Available,
2696	Pde.b.u1Global ? (fPGE ? "g" : "G") : " ",
2697	Pde.b.u1WriteThru ? "pwt" : " ",
2698	Pde.b.u1CacheDisable ? "pcd" : " ",
2699	Pde.b.u1PAT ? "pat" : "",
2700	Pde.b.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2701	else
2702	DBGCCmdHlpPrintf(pCmdHlp,
2703	fPAE
2704	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s"
2705	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s",
2706	Pde.u,
2707	Pde.u & X86_PDE_PAE_PG_MASK,
2708	Pde.n.u1Present ? "p " : "np",
2709	Pde.n.u1Write ? "w" : "r",
2710	Pde.n.u1User ? "u" : "s",
2711	Pde.n.u1Accessed ? "a " : "na",
2712	Pde.u & RT_BIT(6) ? "6 " : " ",
2713	Pde.n.u3Available,
2714	Pde.u & RT_BIT(8) ? "8" : " ",
2715	Pde.n.u1WriteThru ? "pwt" : " ",
2716	Pde.n.u1CacheDisable ? "pcd" : " ",
2717	Pde.u & RT_BIT(7) ? "7" : "",
2718	Pde.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2719	if (Pde.u & UINT64_C(0x7fff000000000000))
2720	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pde.u & UINT64_C(0x7fff000000000000)));
2721	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2722	if (RT_FAILURE(rc))
2723	return rc;
2724
2725	/*
2726	* Advance.
2727	*/
2728	VarPDEAddr.u.u64Number += cbEntry;
2729	if (iEntry != ~0U)
2730	VarGCPtr.u.GCFlat += fPAE ? RT_BIT_32(X86_PD_PAE_SHIFT) : RT_BIT_32(X86_PD_SHIFT);
2731	} while (cEntries-- > 0);
2732
2733	return VINF_SUCCESS;
2734	}
2735
2736
2737	/**
2738	* @interface_method_impl{FNDBCCMD, The 'dpdb' command.}
2739	*/
2740	static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2741	{
2742	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2743	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2744	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2745	if (RT_FAILURE(rc1))
2746	return rc1;
2747	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
2748	return rc2;
2749	}
2750
2751
2752	/**
2753	* @interface_method_impl{FNDBCCMD, The 'dph*' commands and main part of 'm'.}
2754	*/
2755	static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2756	{
2757	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2758	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2759
2760	/*
2761	* Figure the context and base flags.
2762	*/
2763	uint32_t fFlags = DBGFPGDMP_FLAGS_PAGE_INFO \| DBGFPGDMP_FLAGS_PRINT_CR3;
2764	if (pCmd->pszCmd[0] == 'm')
2765	fFlags \|= DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW;
2766	else if (pCmd->pszCmd[3] == '\0')
2767	fFlags \|= pDbgc->fRegCtxGuest ? DBGFPGDMP_FLAGS_GUEST : DBGFPGDMP_FLAGS_SHADOW;
2768	else if (pCmd->pszCmd[3] == 'g')
2769	fFlags \|= DBGFPGDMP_FLAGS_GUEST;
2770	else if (pCmd->pszCmd[3] == 'h')
2771	fFlags \|= DBGFPGDMP_FLAGS_SHADOW;
2772	else
2773	AssertFailed();
2774
2775	if (pDbgc->cPagingHierarchyDumps == 0)
2776	fFlags \|= DBGFPGDMP_FLAGS_HEADER;
2777	pDbgc->cPagingHierarchyDumps = (pDbgc->cPagingHierarchyDumps + 1) % 42;
2778
2779	/*
2780	* Get the range.
2781	*/
2782	PCDBGCVAR pRange = cArgs > 0 ? &paArgs[0] : pDbgc->pLastPos;
2783	RTGCPTR GCPtrFirst = NIL_RTGCPTR;
2784	int rc = DBGCCmdHlpVarToFlatAddr(pCmdHlp, pRange, &GCPtrFirst);
2785	if (RT_FAILURE(rc))
2786	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to convert %DV to a flat address: %Rrc", pRange, rc);
2787
2788	uint64_t cbRange;
2789	rc = DBGCCmdHlpVarGetRange(pCmdHlp, pRange, PAGE_SIZE, PAGE_SIZE * 8, &cbRange);
2790	if (RT_FAILURE(rc))
2791	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to obtain the range of %DV: %Rrc", pRange, rc);
2792
2793	RTGCPTR GCPtrLast = RTGCPTR_MAX - GCPtrFirst;
2794	if (cbRange >= GCPtrLast)
2795	GCPtrLast = RTGCPTR_MAX;
2796	else if (!cbRange)
2797	GCPtrLast = GCPtrFirst;
2798	else
2799	GCPtrLast = GCPtrFirst + cbRange - 1;
2800
2801	/*
2802	* Do we have a CR3?
2803	*/
2804	uint64_t cr3 = 0;
2805	if (cArgs > 1)
2806	{
2807	if ((fFlags & (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW)) == (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW))
2808	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No CR3 or mode arguments when dumping both context, please.");
2809	if (paArgs[1].enmType != DBGCVAR_TYPE_NUMBER)
2810	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The CR3 argument is not a number: %DV", &paArgs[1]);
2811	cr3 = paArgs[1].u.u64Number;
2812	}
2813	else
2814	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_CR3;
2815
2816	/*
2817	* Do we have a mode?
2818	*/
2819	if (cArgs > 2)
2820	{
2821	if (paArgs[2].enmType != DBGCVAR_TYPE_STRING)
2822	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The mode argument is not a string: %DV", &paArgs[2]);
2823	static const struct MODETOFLAGS
2824	{
2825	const char *pszName;
2826	uint32_t fFlags;
2827	} s_aModeToFlags[] =
2828	{
2829	{ "ept", DBGFPGDMP_FLAGS_EPT },
2830	{ "legacy", 0 },
2831	{ "legacy-np", DBGFPGDMP_FLAGS_NP },
2832	{ "pse", DBGFPGDMP_FLAGS_PSE },
2833	{ "pse-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_NP },
2834	{ "pae", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE },
2835	{ "pae-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NP },
2836	{ "pae-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE },
2837	{ "pae-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP },
2838	{ "long", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME },
2839	{ "long-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NP },
2840	{ "long-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE },
2841	{ "long-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP }
2842	};
2843	int i = RT_ELEMENTS(s_aModeToFlags);
2844	while (i-- > 0)
2845	if (!strcmp(s_aModeToFlags[i].pszName, paArgs[2].u.pszString))
2846	{
2847	fFlags \|= s_aModeToFlags[i].fFlags;
2848	break;
2849	}
2850	if (i < 0)
2851	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown mode: \"%s\"", paArgs[2].u.pszString);
2852	}
2853	else
2854	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_MODE;
2855
2856	/*
2857	* Call the worker.
2858	*/
2859	rc = DBGFR3PagingDumpEx(pUVM, pDbgc->idCpu, fFlags, cr3, GCPtrFirst, GCPtrLast, 99 /cMaxDepth/,
2860	DBGCCmdHlpGetDbgfOutputHlp(pCmdHlp));
2861	if (RT_FAILURE(rc))
2862	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3PagingDumpEx: %Rrc\n", rc);
2863	return VINF_SUCCESS;
2864	}
2865
2866
2867
2868	/**
2869	* @interface_method_impl{FNDBCCMD, The 'dpg*' commands.}
2870	*/
2871	static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2872	{
2873	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2874
2875	/*
2876	* Validate input.
2877	*/
2878	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1);
2879	if (pCmd->pszCmd[3] == 'a')
2880	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2881	else
2882	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2883	\|\| DBGCVAR_ISPOINTER(paArgs[0].enmType));
2884	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2885
2886	/*
2887	* Guest or shadow page tables? Get the paging parameters.
2888	*/
2889	bool fGuest = pCmd->pszCmd[3] != 'h';
2890	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2891	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2892	? pDbgc->fRegCtxGuest
2893	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2894
2895	bool fPAE, fLME, fPSE, fPGE, fNXE;
2896	uint64_t cr3 = fGuest
2897	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2898	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2899	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2900
2901	/*
2902	* Locate the PTE to start displaying at.
2903	*
2904	* The 'dpta' command takes the address of a PTE, while the others are guest
2905	* virtual address which PTEs should be displayed. So, 'pdta' is rather simple
2906	* while the others require us to do all the tedious walking thru the paging
2907	* hierarchy to find the intended PTE.
2908	*/
2909	unsigned iEntry = ~0U; /* The page table index. ~0U for 'dpta'. */
2910	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PTE (iEntry != ~0U). */
2911	DBGCVAR VarPTEAddr; /* The address of the current PTE. */
2912	unsigned cEntries; /* The number of entries to display. */
2913	unsigned cEntriesMax; /* The max number of entries to display. */
2914	int rc;
2915	if (pCmd->pszCmd[3] == 'a')
2916	{
2917	VarPTEAddr = paArgs[0];
2918	switch (VarPTEAddr.enmRangeType)
2919	{
2920	case DBGCVAR_RANGE_BYTES: cEntries = VarPTEAddr.u64Range / cbEntry; break;
2921	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPTEAddr.u64Range; break;
2922	default: cEntries = 10; break;
2923	}
2924	cEntriesMax = PAGE_SIZE / cbEntry;
2925	}
2926	else
2927	{
2928	/*
2929	* Determine the range.
2930	*/
2931	switch (paArgs[0].enmRangeType)
2932	{
2933	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2934	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2935	default: cEntries = 10; break;
2936	}
2937
2938	/*
2939	* Normalize the input address, it must be a flat GC address.
2940	*/
2941	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2942	if (RT_FAILURE(rc))
2943	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2944	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2945	{
2946	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2947	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2948	}
2949	VarGCPtr.u.GCFlat &= ~(RTGCPTR)PAGE_OFFSET_MASK;
2950
2951	/*
2952	* Do the paging walk until we get to the page table.
2953	*/
2954	DBGCVAR VarCur;
2955	if (fGuest)
2956	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2957	else
2958	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2959	if (fLME)
2960	{
2961	/* Page Map Level 4 Lookup. */
2962	/* Check if it's a valid address first? */
2963	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2964	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2965	X86PML4E Pml4e;
2966	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2967	if (RT_FAILURE(rc))
2968	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2969	if (!Pml4e.n.u1Present)
2970	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2971
2972	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2973	Assert(fPAE);
2974	}
2975	if (fPAE)
2976	{
2977	/* Page directory pointer table. */
2978	X86PDPE Pdpe;
2979	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2980	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2981	if (RT_FAILURE(rc))
2982	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2983	if (!Pdpe.n.u1Present)
2984	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2985
2986	VarCur.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2987
2988	/* Page directory (PAE). */
2989	X86PDEPAE Pde;
2990	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK) * sizeof(Pde);
2991	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
2992	if (RT_FAILURE(rc))
2993	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
2994	if (!Pde.n.u1Present)
2995	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
2996	if (fPSE && Pde.n.u1Size)
2997	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
2998
2999	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
3000	VarPTEAddr = VarCur;
3001	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PAE_PG_MASK;
3002	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTEPAE);
3003	}
3004	else
3005	{
3006	/* Page directory (legacy). */
3007	X86PDE Pde;
3008	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK) * sizeof(Pde);
3009	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
3010	if (RT_FAILURE(rc))
3011	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3012	if (!Pde.n.u1Present)
3013	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3014	if (fPSE && Pde.n.u1Size)
3015	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3016
3017	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_SHIFT) & X86_PT_MASK;
3018	VarPTEAddr = VarCur;
3019	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PG_MASK;
3020	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTE);
3021	}
3022	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
3023	}
3024
3025	/* adjust cEntries */
3026	cEntries = RT_MAX(1, cEntries);
3027	cEntries = RT_MIN(cEntries, cEntriesMax);
3028
3029	/*
3030	* The display loop.
3031	*/
3032	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (base %DV / index %#x):\n" : "%DV:\n",
3033	&VarPTEAddr, &VarGCPtr, iEntry);
3034	do
3035	{
3036	/*
3037	* Read.
3038	*/
3039	X86PTEPAE Pte;
3040	Pte.u = 0;
3041	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pte, cbEntry, &VarPTEAddr, NULL);
3042	if (RT_FAILURE(rc))
3043	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PTE memory at %DV.\n", &VarPTEAddr);
3044
3045	/*
3046	* Display.
3047	*/
3048	if (iEntry != ~0U)
3049	{
3050	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
3051	iEntry++;
3052	}
3053	DBGCCmdHlpPrintf(pCmdHlp,
3054	fPAE
3055	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
3056	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
3057	Pte.u,
3058	Pte.u & X86_PTE_PAE_PG_MASK,
3059	Pte.n.u1Present ? "p " : "np",
3060	Pte.n.u1Write ? "w" : "r",
3061	Pte.n.u1User ? "u" : "s",
3062	Pte.n.u1Accessed ? "a " : "na",
3063	Pte.n.u1Dirty ? "d " : "nd",
3064	Pte.n.u3Available,
3065	Pte.n.u1Global ? (fPGE ? "g" : "G") : " ",
3066	Pte.n.u1WriteThru ? "pwt" : " ",
3067	Pte.n.u1CacheDisable ? "pcd" : " ",
3068	Pte.n.u1PAT ? "pat" : " ",
3069	Pte.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " "
3070	);
3071	if (Pte.u & UINT64_C(0x7fff000000000000))
3072	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pte.u & UINT64_C(0x7fff000000000000)));
3073	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3074	if (RT_FAILURE(rc))
3075	return rc;
3076
3077	/*
3078	* Advance.
3079	*/
3080	VarPTEAddr.u.u64Number += cbEntry;
3081	if (iEntry != ~0U)
3082	VarGCPtr.u.GCFlat += PAGE_SIZE;
3083	} while (cEntries-- > 0);
3084
3085	return VINF_SUCCESS;
3086	}
3087
3088
3089	/**
3090	* @interface_method_impl{FNDBCCMD, The 'dptb' command.}
3091	*/
3092	static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3093	{
3094	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3095	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
3096	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
3097	if (RT_FAILURE(rc1))
3098	return rc1;
3099	NOREF(pCmd); NOREF(cArgs);
3100	return rc2;
3101	}
3102
3103
3104	/**
3105	* @interface_method_impl{FNDBCCMD, The 'dt' command.}
3106	*/
3107	static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3108	{
3109	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3110	int rc;
3111
3112	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3113	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
3114	if (cArgs == 1)
3115	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType != DBGCVAR_TYPE_STRING
3116	&& paArgs[0].enmType != DBGCVAR_TYPE_SYMBOL);
3117
3118	/*
3119	* Check if the command indicates the type.
3120	*/
3121	enum { kTss16, kTss32, kTss64, kTssToBeDetermined } enmTssType = kTssToBeDetermined;
3122	if (!strcmp(pCmd->pszCmd, "dt16"))
3123	enmTssType = kTss16;
3124	else if (!strcmp(pCmd->pszCmd, "dt32"))
3125	enmTssType = kTss32;
3126	else if (!strcmp(pCmd->pszCmd, "dt64"))
3127	enmTssType = kTss64;
3128
3129	/*
3130	* We can get a TSS selector (number), a far pointer using a TSS selector, or some kind of TSS pointer.
3131	*/
3132	uint32_t SelTss = UINT32_MAX;
3133	DBGCVAR VarTssAddr;
3134	if (cArgs == 0)
3135	{
3136	/** @todo consider querying the hidden bits instead (missing API). */
3137	uint16_t SelTR;
3138	rc = DBGFR3RegCpuQueryU16(pUVM, pDbgc->idCpu, DBGFREG_TR, &SelTR);
3139	if (RT_FAILURE(rc))
3140	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to query TR, rc=%Rrc\n", rc);
3141	DBGCVAR_INIT_GC_FAR(&VarTssAddr, SelTR, 0);
3142	SelTss = SelTR;
3143	}
3144	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
3145	{
3146	if (paArgs[0].u.u64Number < 0xffff)
3147	DBGCVAR_INIT_GC_FAR(&VarTssAddr, (RTSEL)paArgs[0].u.u64Number, 0);
3148	else
3149	{
3150	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_ELEMENTS)
3151	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Element count doesn't combine with a TSS address.\n");
3152	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, paArgs[0].u.u64Number);
3153	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_BYTES)
3154	{
3155	VarTssAddr.enmRangeType = paArgs[0].enmRangeType;
3156	VarTssAddr.u64Range = paArgs[0].u64Range;
3157	}
3158	}
3159	}
3160	else
3161	VarTssAddr = paArgs[0];
3162
3163	/*
3164	* Deal with TSS:ign by means of the GDT.
3165	*/
3166	if (VarTssAddr.enmType == DBGCVAR_TYPE_GC_FAR)
3167	{
3168	SelTss = VarTssAddr.u.GCFar.sel;
3169	DBGFSELINFO SelInfo;
3170	rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, VarTssAddr.u.GCFar.sel, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
3171	if (RT_FAILURE(rc))
3172	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3SelQueryInfo(,%u,%d,,) -> %Rrc.\n",
3173	pDbgc->idCpu, VarTssAddr.u.GCFar.sel, rc);
3174
3175	if (SelInfo.u.Raw.Gen.u1DescType)
3176	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (!sys)\n", VarTssAddr.u.GCFar.sel);
3177
3178	switch (SelInfo.u.Raw.Gen.u4Type)
3179	{
3180	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
3181	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
3182	if (enmTssType == kTssToBeDetermined)
3183	enmTssType = kTss16;
3184	break;
3185
3186	case X86_SEL_TYPE_SYS_386_TSS_BUSY: /* AMD64 too */
3187	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
3188	if (enmTssType == kTssToBeDetermined)
3189	enmTssType = SelInfo.fFlags & DBGFSELINFO_FLAGS_LONG_MODE ? kTss64 : kTss32;
3190	break;
3191
3192	default:
3193	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (type=%x)\n",
3194	VarTssAddr.u.GCFar.sel, SelInfo.u.Raw.Gen.u4Type);
3195	}
3196
3197	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, SelInfo.GCPtrBase);
3198	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, RT_MAX(SelInfo.cbLimit + 1, SelInfo.cbLimit));
3199	}
3200
3201	/*
3202	* Determine the TSS type if none is currently given.
3203	*/
3204	if (enmTssType == kTssToBeDetermined)
3205	{
3206	if ( VarTssAddr.u64Range > 0
3207	&& VarTssAddr.u64Range < sizeof(X86TSS32) - 4)
3208	enmTssType = kTss16;
3209	else
3210	{
3211	uint64_t uEfer;
3212	rc = DBGFR3RegCpuQueryU64(pUVM, pDbgc->idCpu, DBGFREG_MSR_K6_EFER, &uEfer);
3213	if ( RT_FAILURE(rc)
3214	\|\| !(uEfer & MSR_K6_EFER_LMA) )
3215	enmTssType = kTss32;
3216	else
3217	enmTssType = kTss64;
3218	}
3219	}
3220
3221	/*
3222	* Figure the min/max sizes.
3223	* ASSUMES max TSS size is 64 KB.
3224	*/
3225	uint32_t cbTssMin;
3226	uint32_t cbTssMax;
3227	switch (enmTssType)
3228	{
3229	case kTss16:
3230	cbTssMin = cbTssMax = sizeof(X86TSS16);
3231	break;
3232	case kTss32:
3233	cbTssMin = RT_OFFSETOF(X86TSS32, IntRedirBitmap);
3234	cbTssMax = _64K;
3235	break;
3236	case kTss64:
3237	cbTssMin = RT_OFFSETOF(X86TSS64, IntRedirBitmap);
3238	cbTssMax = _64K;
3239	break;
3240	default:
3241	AssertFailedReturn(VERR_INTERNAL_ERROR);
3242	}
3243	uint32_t cbTss = VarTssAddr.enmRangeType == DBGCVAR_RANGE_BYTES ? (uint32_t)VarTssAddr.u64Range : 0;
3244	if (cbTss == 0)
3245	cbTss = cbTssMin;
3246	else if (cbTss < cbTssMin)
3247	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Minimum TSS size is %u bytes, you specified %llu (%llx) bytes.\n",
3248	cbTssMin, VarTssAddr.u64Range, VarTssAddr.u64Range);
3249	else if (cbTss > cbTssMax)
3250	cbTss = cbTssMax;
3251	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, cbTss);
3252
3253	/*
3254	* Read the TSS into a temporary buffer.
3255	*/
3256	uint8_t abBuf[_64K];
3257	size_t cbTssRead;
3258	rc = DBGCCmdHlpMemRead(pCmdHlp, abBuf, cbTss, &VarTssAddr, &cbTssRead);
3259	if (RT_FAILURE(rc))
3260	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read TSS at %Dv: %Rrc\n", &VarTssAddr, rc);
3261	if (cbTssRead < cbTssMin)
3262	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read essential parts of the TSS (read %zu, min %zu).\n",
3263	cbTssRead, cbTssMin);
3264	if (cbTssRead < cbTss)
3265	memset(&abBuf[cbTssRead], 0xff, cbTss - cbTssRead);
3266
3267
3268	/*
3269	* Format the TSS.
3270	*/
3271	uint16_t offIoBitmap;
3272	switch (enmTssType)
3273	{
3274	case kTss16:
3275	{
3276	PCX86TSS16 pTss = (PCX86TSS16)&abBuf[0];
3277	if (SelTss != UINT32_MAX)
3278	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS16 at %Dv\n", SelTss, &VarTssAddr);
3279	else
3280	DBGCCmdHlpPrintf(pCmdHlp, "TSS16 at %Dv\n", &VarTssAddr);
3281	DBGCCmdHlpPrintf(pCmdHlp,
3282	"ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x\n"
3283	"ip=%04x sp=%04x bp=%04x\n"
3284	"cs=%04x ss=%04x ds=%04x es=%04x flags=%04x\n"
3285	"ss:sp0=%04x:%04x ss:sp1=%04x:%04x ss:sp2=%04x:%04x\n"
3286	"prev=%04x ldtr=%04x\n"
3287	,
3288	pTss->ax, pTss->bx, pTss->cx, pTss->dx, pTss->si, pTss->di,
3289	pTss->ip, pTss->sp, pTss->bp,
3290	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->flags,
3291	pTss->ss0, pTss->sp0, pTss->ss1, pTss->sp1, pTss->ss2, pTss->sp2,
3292	pTss->selPrev, pTss->selLdt);
3293	if (pTss->cs != 0)
3294	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%04x L 0", pTss->cs, pTss->ip);
3295	offIoBitmap = 0;
3296	break;
3297	}
3298
3299	case kTss32:
3300	{
3301	PCX86TSS32 pTss = (PCX86TSS32)&abBuf[0];
3302	if (SelTss != UINT32_MAX)
3303	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS32 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3304	else
3305	DBGCCmdHlpPrintf(pCmdHlp, "TSS32 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3306	DBGCCmdHlpPrintf(pCmdHlp,
3307	"eax=%08x bx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
3308	"eip=%08x esp=%08x ebp=%08x\n"
3309	"cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x eflags=%08x\n"
3310	"ss:esp0=%04x:%08x ss:esp1=%04x:%08x ss:esp2=%04x:%08x\n"
3311	"prev=%04x ldtr=%04x cr3=%08x debug=%u iomap=%04x\n"
3312	,
3313	pTss->eax, pTss->ebx, pTss->ecx, pTss->edx, pTss->esi, pTss->edi,
3314	pTss->eip, pTss->esp, pTss->ebp,
3315	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->fs, pTss->gs, pTss->eflags,
3316	pTss->ss0, pTss->esp0, pTss->ss1, pTss->esp1, pTss->ss2, pTss->esp2,
3317	pTss->selPrev, pTss->selLdt, pTss->cr3, pTss->fDebugTrap, pTss->offIoBitmap);
3318	if (pTss->cs != 0)
3319	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%08x L 0", pTss->cs, pTss->eip);
3320	offIoBitmap = pTss->offIoBitmap;
3321	break;
3322	}
3323
3324	case kTss64:
3325	{
3326	PCX86TSS64 pTss = (PCX86TSS64)&abBuf[0];
3327	if (SelTss != UINT32_MAX)
3328	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS64 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3329	else
3330	DBGCCmdHlpPrintf(pCmdHlp, "TSS64 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3331	DBGCCmdHlpPrintf(pCmdHlp,
3332	"rsp0=%016RX16 rsp1=%016RX16 rsp2=%016RX16\n"
3333	"ist1=%016RX16 ist2=%016RX16\n"
3334	"ist3=%016RX16 ist4=%016RX16\n"
3335	"ist5=%016RX16 ist6=%016RX16\n"
3336	"ist7=%016RX16 iomap=%04x\n"
3337	,
3338	pTss->rsp0, pTss->rsp1, pTss->rsp2,
3339	pTss->ist1, pTss->ist2,
3340	pTss->ist3, pTss->ist4,
3341	pTss->ist5, pTss->ist6,
3342	pTss->ist7, pTss->offIoBitmap);
3343	offIoBitmap = pTss->offIoBitmap;
3344	break;
3345	}
3346
3347	default:
3348	AssertFailedReturn(VERR_INTERNAL_ERROR);
3349	}
3350
3351	/*
3352	* Dump the interrupt redirection bitmap.
3353	*/
3354	if (enmTssType != kTss16)
3355	{
3356	if ( offIoBitmap > cbTssMin
3357	&& offIoBitmap < cbTss) /** @todo check exactly what the edge cases are here. */
3358	{
3359	if (offIoBitmap - cbTssMin >= 32)
3360	{
3361	DBGCCmdHlpPrintf(pCmdHlp, "Interrupt redirection:\n");
3362	uint8_t const *pbIntRedirBitmap = &abBuf[offIoBitmap - 32];
3363	uint32_t iStart = 0;
3364	bool fPrev = ASMBitTest(pbIntRedirBitmap, 0); /* LE/BE issue */
3365	for (uint32_t i = 0; i < 256; i++)
3366	{
3367	bool fThis = ASMBitTest(pbIntRedirBitmap, i);
3368	if (fThis != fPrev)
3369	{
3370	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, i - 1, fPrev ? "Protected mode" : "Redirected");
3371	fPrev = fThis;
3372	iStart = i;
3373	}
3374	}
3375	if (iStart != 255)
3376	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, 255, fPrev ? "Protected mode" : "Redirected");
3377	}
3378	else
3379	DBGCCmdHlpPrintf(pCmdHlp, "Invalid interrupt redirection bitmap size: %u (%#x), expected 32 bytes.\n",
3380	offIoBitmap - cbTssMin, offIoBitmap - cbTssMin);
3381	}
3382	else if (offIoBitmap > 0)
3383	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3384	else
3385	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap\n");
3386	}
3387
3388	/*
3389	* Dump the I/O permission bitmap if present. The IOPM cannot start below offset 0x64
3390	* (that applies to both 32-bit and 64-bit TSSs since their size is the same).
3391	*/
3392	if (enmTssType != kTss16)
3393	{
3394	if (offIoBitmap < cbTss && offIoBitmap >= 0x64)
3395	{
3396	uint32_t cPorts = RT_MIN((cbTss - offIoBitmap) * 8, _64K);
3397	DBGCVAR VarAddr;
3398	DBGCCmdHlpEval(pCmdHlp, &VarAddr, "%DV + %#x", &VarTssAddr, offIoBitmap);
3399	DBGCCmdHlpPrintf(pCmdHlp, "I/O bitmap at %DV - %#x ports:\n", &VarAddr, cPorts);
3400
3401	uint8_t const *pbIoBitmap = &abBuf[offIoBitmap];
3402	uint32_t iStart = 0;
3403	bool fPrev = ASMBitTest(pbIoBitmap, 0);
3404	uint32_t cLine = 0;
3405	for (uint32_t i = 1; i < cPorts; i++)
3406	{
3407	bool fThis = ASMBitTest(pbIoBitmap, i);
3408	if (fThis != fPrev)
3409	{
3410	cLine++;
3411	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s%s", iStart, i-1,
3412	fPrev ? "GP" : "OK", (cLine % 6) == 0 ? "\n" : " ");
3413	fPrev = fThis;
3414	iStart = i;
3415	}
3416	}
3417	if (iStart != _64K-1)
3418	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s\n", iStart, _64K-1, fPrev ? "GP" : "OK");
3419	}
3420	else if (offIoBitmap > 0)
3421	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3422	else
3423	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap\n");
3424	}
3425
3426	return VINF_SUCCESS;
3427	}
3428
3429
3430	/**
3431	* @interface_method_impl{FNDBCCMD, The 'm' command.}
3432	*/
3433	static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3434	{
3435	DBGCCmdHlpPrintf(pCmdHlp, "Address: %DV\n", &paArgs[0]);
3436	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3437	return dbgcCmdDumpPageHierarchy(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
3438	}
3439
3440
3441	/**
3442	* Converts one or more variables into a byte buffer for a
3443	* given unit size.
3444	*
3445	* @returns VBox status codes:
3446	* @retval VERR_TOO_MUCH_DATA if the buffer is too small, bitched.
3447	* @retval VERR_INTERNAL_ERROR on bad variable type, bitched.
3448	* @retval VINF_SUCCESS on success.
3449	*
3450	* @param pvBuf The buffer to convert into.
3451	* @param pcbBuf The buffer size on input. The size of the result on output.
3452	* @param cbUnit The unit size to apply when converting.
3453	* The high bit is used to indicate unicode string.
3454	* @param paVars The array of variables to convert.
3455	* @param cVars The number of variables.
3456	*/
3457	int dbgcVarsToBytes(PDBGCCMDHLP pCmdHlp, void pvBuf, uint32_t pcbBuf, size_t cbUnit, PCDBGCVAR paVars, unsigned cVars)
3458	{
3459	union
3460	{
3461	uint8_t *pu8;
3462	uint16_t *pu16;
3463	uint32_t *pu32;
3464	uint64_t *pu64;
3465	} u, uEnd;
3466	u.pu8 = (uint8_t *)pvBuf;
3467	uEnd.pu8 = u.pu8 + *pcbBuf;
3468
3469	unsigned i;
3470	for (i = 0; i < cVars && u.pu8 < uEnd.pu8; i++)
3471	{
3472	switch (paVars[i].enmType)
3473	{
3474	case DBGCVAR_TYPE_GC_FAR:
3475	case DBGCVAR_TYPE_GC_FLAT:
3476	case DBGCVAR_TYPE_GC_PHYS:
3477	case DBGCVAR_TYPE_HC_FLAT:
3478	case DBGCVAR_TYPE_HC_PHYS:
3479	case DBGCVAR_TYPE_NUMBER:
3480	{
3481	uint64_t u64 = paVars[i].u.u64Number;
3482	switch (cbUnit & 0x1f)
3483	{
3484	case 1:
3485	do
3486	{
3487	*u.pu8++ = u64;
3488	u64 >>= 8;
3489	} while (u64);
3490	break;
3491	case 2:
3492	do
3493	{
3494	*u.pu16++ = u64;
3495	u64 >>= 16;
3496	} while (u64);
3497	break;
3498	case 4:
3499	*u.pu32++ = u64;
3500	u64 >>= 32;
3501	if (u64)
3502	*u.pu32++ = u64;
3503	break;
3504	case 8:
3505	*u.pu64++ = u64;
3506	break;
3507	}
3508	break;
3509	}
3510
3511	case DBGCVAR_TYPE_STRING:
3512	case DBGCVAR_TYPE_SYMBOL:
3513	{
3514	const char *psz = paVars[i].u.pszString;
3515	size_t cbString = strlen(psz);
3516	if (cbUnit & RT_BIT_32(31))
3517	{
3518	/* Explode char to unit. */
3519	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8) * (cbUnit & 0x1f))
3520	{
3521	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3522	return VERR_TOO_MUCH_DATA;
3523	}
3524	while (*psz)
3525	{
3526	switch (cbUnit & 0x1f)
3527	{
3528	case 1: u.pu8++ = psz; break;
3529	case 2: u.pu16++ = psz; break;
3530	case 4: u.pu32++ = psz; break;
3531	case 8: u.pu64++ = psz; break;
3532	}
3533	psz++;
3534	}
3535	}
3536	else
3537	{
3538	/* Raw copy with zero padding if the size isn't aligned. */
3539	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8))
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
3545	size_t cbCopy = cbString & ~(cbUnit - 1);
3546	memcpy(u.pu8, psz, cbCopy);
3547	u.pu8 += cbCopy;
3548	psz += cbCopy;
3549
3550	size_t cbReminder = cbString & (cbUnit - 1);
3551	if (cbReminder)
3552	{
3553	memcpy(u.pu8, psz, cbString & (cbUnit - 1));
3554	memset(u.pu8 + cbReminder, 0, cbUnit - cbReminder);
3555	u.pu8 += cbUnit;
3556	}
3557	}
3558	break;
3559	}
3560
3561	default:
3562	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3563	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INTERNAL_ERROR,
3564	"i=%d enmType=%d\n", i, paVars[i].enmType);
3565	return VERR_INTERNAL_ERROR;
3566	}
3567	}
3568	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3569	if (i != cVars)
3570	{
3571	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3572	return VERR_TOO_MUCH_DATA;
3573	}
3574	return VINF_SUCCESS;
3575	}
3576
3577
3578	/**
3579	* @interface_method_impl{FNDBCCMD, The 'eb', 'ew', 'ed' and 'eq' commands.}
3580	*/
3581	static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3582	{
3583	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3584	unsigned iArg;
3585
3586	/*
3587	* Validate input.
3588	*/
3589	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2);
3590	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
3591	for (iArg = 1; iArg < cArgs; iArg++)
3592	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER);
3593	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3594
3595	/*
3596	* Figure out the element size.
3597	*/
3598	unsigned cbElement;
3599	switch (pCmd->pszCmd[1])
3600	{
3601	default:
3602	case 'b': cbElement = 1; break;
3603	case 'w': cbElement = 2; break;
3604	case 'd': cbElement = 4; break;
3605	case 'q': cbElement = 8; break;
3606	}
3607
3608	/*
3609	* Do setting.
3610	*/
3611	DBGCVAR Addr = paArgs[0];
3612	for (iArg = 1;;)
3613	{
3614	size_t cbWritten;
3615	int rc = pCmdHlp->pfnMemWrite(pCmdHlp, &paArgs[iArg].u, cbElement, &Addr, &cbWritten);
3616	if (RT_FAILURE(rc))
3617	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Writing memory at %DV.\n", &Addr);
3618	if (cbWritten != cbElement)
3619	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Only wrote %u out of %u bytes!\n", cbWritten, cbElement);
3620
3621	/* advance. */
3622	iArg++;
3623	if (iArg >= cArgs)
3624	break;
3625	rc = DBGCCmdHlpEval(pCmdHlp, &Addr, "%Dv + %#x", &Addr, cbElement);
3626	if (RT_FAILURE(rc))
3627	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3628	}
3629
3630	return VINF_SUCCESS;
3631	}
3632
3633
3634	/**
3635	* Executes the search.
3636	*
3637	* @returns VBox status code.
3638	* @param pCmdHlp The command helpers.
3639	* @param pUVM The user mode VM handle.
3640	* @param pAddress The address to start searching from. (undefined on output)
3641	* @param cbRange The address range to search. Must not wrap.
3642	* @param pabBytes The byte pattern to search for.
3643	* @param cbBytes The size of the pattern.
3644	* @param cbUnit The search unit.
3645	* @param cMaxHits The max number of hits.
3646	* @param pResult Where to store the result if it's a function invocation.
3647	*/
3648	static int dbgcCmdWorkerSearchMemDoIt(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGFADDRESS pAddress, RTGCUINTPTR cbRange,
3649	const uint8_t *pabBytes, uint32_t cbBytes,
3650	uint32_t cbUnit, uint64_t cMaxHits, PDBGCVAR pResult)
3651	{
3652	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3653
3654	/*
3655	* Do the search.
3656	*/
3657	uint64_t cHits = 0;
3658	for (;;)
3659	{
3660	/* search */
3661	DBGFADDRESS HitAddress;
3662	int rc = DBGFR3MemScan(pUVM, pDbgc->idCpu, pAddress, cbRange, 1, pabBytes, cbBytes, &HitAddress);
3663	if (RT_FAILURE(rc))
3664	{
3665	if (rc != VERR_DBGF_MEM_NOT_FOUND)
3666	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3MemScan\n");
3667
3668	/* update the current address so we can save it (later). */
3669	pAddress->off += cbRange;
3670	pAddress->FlatPtr += cbRange;
3671	cbRange = 0;
3672	break;
3673	}
3674
3675	/* report result */
3676	DBGCVAR VarCur;
3677	rc = DBGCCmdHlpVarFromDbgfAddr(pCmdHlp, &HitAddress, &VarCur);
3678	if (RT_FAILURE(rc))
3679	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGCCmdHlpVarFromDbgfAddr\n");
3680	if (!pResult)
3681	pCmdHlp->pfnExec(pCmdHlp, "db %DV LB 10", &VarCur);
3682	else
3683	DBGCVAR_ASSIGN(pResult, &VarCur);
3684
3685	/* advance */
3686	cbRange -= HitAddress.FlatPtr - pAddress->FlatPtr;
3687	*pAddress = HitAddress;
3688	pAddress->FlatPtr += cbBytes;
3689	pAddress->off += cbBytes;
3690	if (cbRange <= cbBytes)
3691	{
3692	cbRange = 0;
3693	break;
3694	}
3695	cbRange -= cbBytes;
3696
3697	if (++cHits >= cMaxHits)
3698	{
3699	/// @todo save the search.
3700	break;
3701	}
3702	}
3703
3704	/*
3705	* Save the search so we can resume it...
3706	*/
3707	if (pDbgc->abSearch != pabBytes)
3708	{
3709	memcpy(pDbgc->abSearch, pabBytes, cbBytes);
3710	pDbgc->cbSearch = cbBytes;
3711	pDbgc->cbSearchUnit = cbUnit;
3712	}
3713	pDbgc->cMaxSearchHits = cMaxHits;
3714	pDbgc->SearchAddr = *pAddress;
3715	pDbgc->cbSearchRange = cbRange;
3716
3717	return cHits ? VINF_SUCCESS : VERR_DBGC_COMMAND_FAILED;
3718	}
3719
3720
3721	/**
3722	* Resumes the previous search.
3723	*
3724	* @returns VBox status code.
3725	* @param pCmdHlp Pointer to the command helper functions.
3726	* @param pUVM The user mode VM handle.
3727	* @param pResult Where to store the result of a function invocation.
3728	*/
3729	static int dbgcCmdWorkerSearchMemResume(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGCVAR pResult)
3730	{
3731	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3732
3733	/*
3734	* Make sure there is a previous command.
3735	*/
3736	if (!pDbgc->cbSearch)
3737	{
3738	DBGCCmdHlpPrintf(pCmdHlp, "Error: No previous search\n");
3739	return VERR_DBGC_COMMAND_FAILED;
3740	}
3741
3742	/*
3743	* Make range and address adjustments.
3744	*/
3745	DBGFADDRESS Address = pDbgc->SearchAddr;
3746	if (Address.FlatPtr == ~(RTGCUINTPTR)0)
3747	{
3748	Address.FlatPtr -= Address.off;
3749	Address.off = 0;
3750	}
3751
3752	RTGCUINTPTR cbRange = pDbgc->cbSearchRange;
3753	if (!cbRange)
3754	cbRange = ~(RTGCUINTPTR)0;
3755	if (Address.FlatPtr + cbRange < pDbgc->SearchAddr.FlatPtr)
3756	cbRange = ~(RTGCUINTPTR)0 - pDbgc->SearchAddr.FlatPtr + !!pDbgc->SearchAddr.FlatPtr;
3757
3758	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, pDbgc->abSearch, pDbgc->cbSearch,
3759	pDbgc->cbSearchUnit, pDbgc->cMaxSearchHits, pResult);
3760	}
3761
3762
3763	/**
3764	* Search memory, worker for the 's' and 's?' functions.
3765	*
3766	* @returns VBox status.
3767	* @param pCmdHlp Pointer to the command helper functions.
3768	* @param pUVM The user mode VM handle.
3769	* @param pAddress Where to start searching. If no range, search till end of address space.
3770	* @param cMaxHits The maximum number of hits.
3771	* @param chType The search type.
3772	* @param paPatArgs The pattern variable array.
3773	* @param cPatArgs Number of pattern variables.
3774	* @param pResult Where to store the result of a function invocation.
3775	*/
3776	static int dbgcCmdWorkerSearchMem(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pAddress, uint64_t cMaxHits, char chType,
3777	PCDBGCVAR paPatArgs, unsigned cPatArgs, PDBGCVAR pResult)
3778	{
3779	if (pResult)
3780	DBGCVAR_INIT_GC_FLAT(pResult, 0);
3781
3782	/*
3783	* Convert the search pattern into bytes and DBGFR3MemScan can deal with.
3784	*/
3785	uint32_t cbUnit;
3786	switch (chType)
3787	{
3788	case 'a':
3789	case 'b': cbUnit = 1; break;
3790	case 'u': cbUnit = 2 \| RT_BIT_32(31); break;
3791	case 'w': cbUnit = 2; break;
3792	case 'd': cbUnit = 4; break;
3793	case 'q': cbUnit = 8; break;
3794	default:
3795	return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "chType=%c\n", chType);
3796	}
3797	uint8_t abBytes[RT_SIZEOFMEMB(DBGC, abSearch)];
3798	uint32_t cbBytes = sizeof(abBytes);
3799	int rc = dbgcVarsToBytes(pCmdHlp, abBytes, &cbBytes, cbUnit, paPatArgs, cPatArgs);
3800	if (RT_FAILURE(rc))
3801	return VERR_DBGC_COMMAND_FAILED;
3802
3803	/*
3804	* Make DBGF address and fix the range.
3805	*/
3806	DBGFADDRESS Address;
3807	rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pAddress, &Address);
3808	if (RT_FAILURE(rc))
3809	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "VarToDbgfAddr(,%Dv,)\n", pAddress);
3810
3811	RTGCUINTPTR cbRange;
3812	switch (pAddress->enmRangeType)
3813	{
3814	case DBGCVAR_RANGE_BYTES:
3815	cbRange = pAddress->u64Range;
3816	if (cbRange != pAddress->u64Range)
3817	cbRange = ~(RTGCUINTPTR)0;
3818	break;
3819
3820	case DBGCVAR_RANGE_ELEMENTS:
3821	cbRange = (RTGCUINTPTR)(pAddress->u64Range * cbUnit);
3822	if ( cbRange != pAddress->u64Range * cbUnit
3823	\|\| cbRange < pAddress->u64Range)
3824	cbRange = ~(RTGCUINTPTR)0;
3825	break;
3826
3827	default:
3828	cbRange = ~(RTGCUINTPTR)0;
3829	break;
3830	}
3831	if (Address.FlatPtr + cbRange < Address.FlatPtr)
3832	cbRange = ~(RTGCUINTPTR)0 - Address.FlatPtr + !!Address.FlatPtr;
3833
3834	/*
3835	* Ok, do it.
3836	*/
3837	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, abBytes, cbBytes, cbUnit, cMaxHits, pResult);
3838	}
3839
3840
3841	/**
3842	* @interface_method_impl{FNDBCCMD, The 's' command.}
3843	*/
3844	static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3845	{
3846	/* check that the parser did what it's supposed to do. */
3847	//if ( cArgs <= 2
3848	// && paArgs[0].enmType != DBGCVAR_TYPE_STRING)
3849	// return DBGCCmdHlpPrintf(pCmdHlp, "parser error\n");
3850
3851	/*
3852	* Repeat previous search?
3853	*/
3854	if (cArgs == 0)
3855	return dbgcCmdWorkerSearchMemResume(pCmdHlp, pUVM, NULL);
3856
3857	/*
3858	* Parse arguments.
3859	*/
3860
3861	return -1;
3862	}
3863
3864
3865	/**
3866	* @interface_method_impl{FNDBCCMD, The 's?' command.}
3867	*/
3868	static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3869	{
3870	/* check that the parser did what it's supposed to do. */
3871	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2 && DBGCVAR_ISGCPOINTER(paArgs[0].enmType));
3872	return dbgcCmdWorkerSearchMem(pCmdHlp, pUVM, &paArgs[0], 25, pCmd->pszCmd[1], paArgs + 1, cArgs - 1, NULL);
3873	}
3874
3875
3876	/**
3877	* List near symbol.
3878	*
3879	* @returns VBox status code.
3880	* @param pCmdHlp Pointer to command helper functions.
3881	* @param pUVM The user mode VM handle.
3882	* @param pArg Pointer to the address or symbol to lookup.
3883	*/
3884	static int dbgcDoListNear(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pArg)
3885	{
3886	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3887
3888	RTDBGSYMBOL Symbol;
3889	int rc;
3890	if (pArg->enmType == DBGCVAR_TYPE_SYMBOL)
3891	{
3892	/*
3893	* Lookup the symbol address.
3894	*/
3895	rc = DBGFR3AsSymbolByName(pUVM, pDbgc->hDbgAs, pArg->u.pszString, &Symbol, NULL);
3896	if (RT_FAILURE(rc))
3897	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3AsSymbolByName(,,%s,)\n", pArg->u.pszString);
3898
3899	rc = DBGCCmdHlpPrintf(pCmdHlp, "%RTptr %s\n", Symbol.Value, Symbol.szName);
3900	}
3901	else
3902	{
3903	/*
3904	* Convert it to a flat GC address and lookup that address.
3905	*/
3906	DBGCVAR AddrVar;
3907	rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(%DV)", pArg);
3908	if (RT_FAILURE(rc))
3909	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(%DV)\n", pArg);
3910
3911	RTINTPTR offDisp;
3912	DBGFADDRESS Addr;
3913	rc = DBGFR3AsSymbolByAddr(pUVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pDbgc->pUVM, &Addr, AddrVar.u.GCFlat),
3914	RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &offDisp, &Symbol, NULL);
3915	if (RT_FAILURE(rc))
3916	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3ASymbolByAddr(,,%RGv,,)\n", AddrVar.u.GCFlat);
3917
3918	if (!offDisp)
3919	rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s", &AddrVar, Symbol.szName);
3920	else if (offDisp > 0)
3921	rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s + %RGv", &AddrVar, Symbol.szName, offDisp);
3922	else
3923	rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s - %RGv", &AddrVar, Symbol.szName, -offDisp);
3924	if (Symbol.cb > 0)
3925	rc = DBGCCmdHlpPrintf(pCmdHlp, " (LB %RGv)\n", Symbol.cb);
3926	else
3927	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3928	}
3929
3930	return rc;
3931	}
3932
3933
3934	/**
3935	* @interface_method_impl{FNDBCCMD, The 'ln' (listnear) command.}
3936	*/
3937	static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3938	{
3939	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3940	if (!cArgs)
3941	{
3942	/*
3943	* Current cs:eip symbol.
3944	*/
3945	DBGCVAR AddrVar;
3946	const char *pszFmtExpr = pDbgc->fRegCtxGuest ? "%%(cs:eip)" : "%%(.cs:.eip)";
3947	int rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, pszFmtExpr);
3948	if (RT_FAILURE(rc))
3949	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%s\n", pszFmtExpr + 1);
3950	return dbgcDoListNear(pCmdHlp, pUVM, &AddrVar);
3951	}
3952
3953	/** @todo Fix the darn parser, it's resolving symbols specified as arguments before we get in here. */
3954	/*
3955	* Iterate arguments.
3956	*/
3957	for (unsigned iArg = 0; iArg < cArgs; iArg++)
3958	{
3959	int rc = dbgcDoListNear(pCmdHlp, pUVM, &paArgs[iArg]);
3960	if (RT_FAILURE(rc))
3961	return rc;
3962	}
3963
3964	NOREF(pCmd);
3965	return VINF_SUCCESS;
3966	}
3967
3968
3969	/**
3970	* Matches the module patters against a module name.
3971	*
3972	* @returns true if matching, otherwise false.
3973	* @param pszName The module name.
3974	* @param paArgs The module pattern argument list.
3975	* @param cArgs Number of arguments.
3976	*/
3977	static bool dbgcCmdListModuleMatch(const char *pszName, PCDBGCVAR paArgs, unsigned cArgs)
3978	{
3979	for (uint32_t i = 0; i < cArgs; i++)
3980	if (RTStrSimplePatternMatch(paArgs[i].u.pszString, pszName))
3981	return true;
3982	return false;
3983	}
3984
3985
3986	/**
3987	* @interface_method_impl{FNDBCCMD, The 'ln' (list near) command.}
3988	*/
3989	static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3990	{
3991	bool const fMappings = pCmd->pszCmd[2] == 'o';
3992	bool const fVerbose = pCmd->pszCmd[strlen(pCmd->pszCmd) - 1] == 'v';
3993	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3994
3995	/*
3996	* Iterate the modules in the current address space and print info about
3997	* those matching the input.
3998	*/
3999	RTDBGAS hAs = DBGFR3AsResolveAndRetain(pUVM, pDbgc->hDbgAs);
4000	uint32_t cMods = RTDbgAsModuleCount(hAs);
4001	for (uint32_t iMod = 0; iMod < cMods; iMod++)
4002	{
4003	RTDBGMOD hMod = RTDbgAsModuleByIndex(hAs, iMod);
4004	if (hMod != NIL_RTDBGMOD)
4005	{
4006	bool const fDeferred = RTDbgModIsDeferred(hMod);
4007	bool const fExports = RTDbgModIsExports(hMod);
4008	uint32_t const cSegs = fDeferred ? 1 : RTDbgModSegmentCount(hMod);
4009	const char * const pszName = RTDbgModName(hMod);
4010	const char * const pszImgFile = RTDbgModImageFile(hMod);
4011	const char * const pszImgFileUsed = RTDbgModImageFileUsed(hMod);
4012	const char * const pszDbgFile = RTDbgModDebugFile(hMod);
4013	if ( cArgs == 0
4014	\|\| dbgcCmdListModuleMatch(pszName, paArgs, cArgs))
4015	{
4016	/*
4017	* Find the mapping with the lower address, preferring a full
4018	* image mapping, for the main line.
4019	*/
4020	RTDBGASMAPINFO aMappings[128];
4021	uint32_t cMappings = RT_ELEMENTS(aMappings);
4022	int rc = RTDbgAsModuleQueryMapByIndex(hAs, iMod, &aMappings[0], &cMappings, 0 /fFlags/);
4023	if (RT_SUCCESS(rc))
4024	{
4025	bool fFull = false;
4026	RTUINTPTR uMin = RTUINTPTR_MAX;
4027	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4028	if ( aMappings[iMap].Address < uMin
4029	&& ( !fFull
4030	\|\| aMappings[iMap].iSeg == NIL_RTDBGSEGIDX))
4031	uMin = aMappings[iMap].Address;
4032	if (!fVerbose \|\| !pszImgFile)
4033	DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %s%s\n", (RTGCUINTPTR)uMin, cSegs, pszName,
4034	fExports ? " (exports)" : fDeferred ? " (deferred)" : "");
4035	else
4036	DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %-12s %s%s\n", (RTGCUINTPTR)uMin, cSegs, pszName, pszImgFile,
4037	fExports ? " (exports)" : fDeferred ? " (deferred)" : "");
4038	if (fVerbose && pszImgFileUsed)
4039	DBGCCmdHlpPrintf(pCmdHlp, " Local image: %s\n", pszImgFileUsed);
4040	if (fVerbose && pszDbgFile)
4041	DBGCCmdHlpPrintf(pCmdHlp, " Debug file: %s\n", pszDbgFile);
4042
4043	if (fMappings)
4044	{
4045	/* sort by address first - not very efficient. */
4046	for (uint32_t i = 0; i + 1 < cMappings; i++)
4047	for (uint32_t j = i + 1; j < cMappings; j++)
4048	if (aMappings[j].Address < aMappings[i].Address)
4049	{
4050	RTDBGASMAPINFO Tmp = aMappings[j];
4051	aMappings[j] = aMappings[i];
4052	aMappings[i] = Tmp;
4053	}
4054
4055	/* print */
4056	if ( cMappings == 1
4057	&& aMappings[0].iSeg == NIL_RTDBGSEGIDX
4058	&& !fDeferred)
4059	{
4060	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
4061	{
4062	RTDBGSEGMENT SegInfo;
4063	rc = RTDbgModSegmentByIndex(hMod, iSeg, &SegInfo);
4064	if (RT_SUCCESS(rc))
4065	{
4066	if (SegInfo.uRva != RTUINTPTR_MAX)
4067	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4068	(RTGCUINTPTR)(aMappings[0].Address + SegInfo.uRva),
4069	(RTGCUINTPTR)SegInfo.cb, iSeg, SegInfo.szName);
4070	else
4071	DBGCCmdHlpPrintf(pCmdHlp, " %*s %RGv #%02x %s\n",
4072	sizeof(RTGCUINTPTR)*2, "noload",
4073	(RTGCUINTPTR)SegInfo.cb, iSeg, SegInfo.szName);
4074	}
4075	else
4076	DBGCCmdHlpPrintf(pCmdHlp, " Error query segment #%u: %Rrc\n", iSeg, rc);
4077	}
4078	}
4079	else
4080	{
4081	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4082	if (aMappings[iMap].iSeg == NIL_RTDBGSEGIDX)
4083	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv <everything>\n",
4084	(RTGCUINTPTR)aMappings[iMap].Address,
4085	(RTGCUINTPTR)RTDbgModImageSize(hMod));
4086	else if (!fDeferred)
4087	{
4088	RTDBGSEGMENT SegInfo;
4089	rc = RTDbgModSegmentByIndex(hMod, aMappings[iMap].iSeg, &SegInfo);
4090	if (RT_FAILURE(rc))
4091	{
4092	RT_ZERO(SegInfo);
4093	strcpy(SegInfo.szName, "error");
4094	}
4095	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4096	(RTGCUINTPTR)aMappings[iMap].Address,
4097	(RTGCUINTPTR)SegInfo.cb,
4098	aMappings[iMap].iSeg, SegInfo.szName);
4099	}
4100	else
4101	DBGCCmdHlpPrintf(pCmdHlp, " %RGv #%02x\n",
4102	(RTGCUINTPTR)aMappings[iMap].Address, aMappings[iMap].iSeg);
4103	}
4104	}
4105	}
4106	else
4107	DBGCCmdHlpPrintf(pCmdHlp, "%.*s %04x %s (rc=%Rrc)\n",
4108	sizeof(RTGCPTR) * 2, "???????????", cSegs, pszName, rc);
4109	/** @todo missing address space API for enumerating the mappings. */
4110	}
4111	RTDbgModRelease(hMod);
4112	}
4113	}
4114	RTDbgAsRelease(hAs);
4115
4116	NOREF(pCmd);
4117	return VINF_SUCCESS;
4118	}
4119
4120
4121
4122	/**
4123	* @callback_method_impl{Reads a unsigned 8-bit value.}
4124	*/
4125	static DECLCALLBACK(int) dbgcFuncReadU8(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4126	PDBGCVAR pResult)
4127	{
4128	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4129	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4130	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4131
4132	uint8_t b;
4133	int rc = DBGCCmdHlpMemRead(pCmdHlp, &b, sizeof(b), &paArgs[0], NULL);
4134	if (RT_FAILURE(rc))
4135	return rc;
4136	DBGCVAR_INIT_NUMBER(pResult, b);
4137
4138	NOREF(pFunc);
4139	return VINF_SUCCESS;
4140	}
4141
4142
4143	/**
4144	* @callback_method_impl{Reads a unsigned 16-bit value.}
4145	*/
4146	static DECLCALLBACK(int) dbgcFuncReadU16(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4147	PDBGCVAR pResult)
4148	{
4149	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4150	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4151	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4152
4153	uint16_t u16;
4154	int rc = DBGCCmdHlpMemRead(pCmdHlp, &u16, sizeof(u16), &paArgs[0], NULL);
4155	if (RT_FAILURE(rc))
4156	return rc;
4157	DBGCVAR_INIT_NUMBER(pResult, u16);
4158
4159	NOREF(pFunc);
4160	return VINF_SUCCESS;
4161	}
4162
4163
4164	/**
4165	* @callback_method_impl{Reads a unsigned 32-bit value.}
4166	*/
4167	static DECLCALLBACK(int) dbgcFuncReadU32(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4168	PDBGCVAR pResult)
4169	{
4170	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4171	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4172	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4173
4174	uint32_t u32;
4175	int rc = DBGCCmdHlpMemRead(pCmdHlp, &u32, sizeof(u32), &paArgs[0], NULL);
4176	if (RT_FAILURE(rc))
4177	return rc;
4178	DBGCVAR_INIT_NUMBER(pResult, u32);
4179
4180	NOREF(pFunc);
4181	return VINF_SUCCESS;
4182	}
4183
4184
4185	/**
4186	* @callback_method_impl{Reads a unsigned 64-bit value.}
4187	*/
4188	static DECLCALLBACK(int) dbgcFuncReadU64(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4189	PDBGCVAR pResult)
4190	{
4191	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4192	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4193	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4194
4195	uint64_t u64;
4196	int rc = DBGCCmdHlpMemRead(pCmdHlp, &u64, sizeof(u64), &paArgs[0], NULL);
4197	if (RT_FAILURE(rc))
4198	return rc;
4199	DBGCVAR_INIT_NUMBER(pResult, u64);
4200
4201	NOREF(pFunc);
4202	return VINF_SUCCESS;
4203	}
4204
4205
4206	/**
4207	* @callback_method_impl{Reads a unsigned pointer-sized value.}
4208	*/
4209	static DECLCALLBACK(int) dbgcFuncReadPtr(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4210	PDBGCVAR pResult)
4211	{
4212	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4213	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4214	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4215
4216	CPUMMODE enmMode = DBGCCmdHlpGetCpuMode(pCmdHlp);
4217	if (enmMode == CPUMMODE_LONG)
4218	return dbgcFuncReadU64(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4219	return dbgcFuncReadU32(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4220	}
4221
4222
4223	/**
4224	* @callback_method_impl{The hi(value) function implementation.}
4225	*/
4226	static DECLCALLBACK(int) dbgcFuncHi(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4227	PDBGCVAR pResult)
4228	{
4229	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4230
4231	uint16_t uHi;
4232	switch (paArgs[0].enmType)
4233	{
4234	case DBGCVAR_TYPE_GC_FLAT: uHi = (uint16_t)(paArgs[0].u.GCFlat >> 16); break;
4235	case DBGCVAR_TYPE_GC_FAR: uHi = (uint16_t)paArgs[0].u.GCFar.sel; break;
4236	case DBGCVAR_TYPE_GC_PHYS: uHi = (uint16_t)(paArgs[0].u.GCPhys >> 16); break;
4237	case DBGCVAR_TYPE_HC_FLAT: uHi = (uint16_t)((uintptr_t)paArgs[0].u.pvHCFlat >> 16); break;
4238	case DBGCVAR_TYPE_HC_PHYS: uHi = (uint16_t)(paArgs[0].u.HCPhys >> 16); break;
4239	case DBGCVAR_TYPE_NUMBER: uHi = (uint16_t)(paArgs[0].u.u64Number >> 16); break;
4240	default:
4241	AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4242	}
4243	DBGCVAR_INIT_NUMBER(pResult, uHi);
4244	DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4245
4246	NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4247	return VINF_SUCCESS;
4248	}
4249
4250
4251	/**
4252	* @callback_method_impl{The low(value) function implementation.}
4253	*/
4254	static DECLCALLBACK(int) dbgcFuncLow(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4255	PDBGCVAR pResult)
4256	{
4257	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4258
4259	uint16_t uLow;
4260	switch (paArgs[0].enmType)
4261	{
4262	case DBGCVAR_TYPE_GC_FLAT: uLow = (uint16_t)paArgs[0].u.GCFlat; break;
4263	case DBGCVAR_TYPE_GC_FAR: uLow = (uint16_t)paArgs[0].u.GCFar.off; break;
4264	case DBGCVAR_TYPE_GC_PHYS: uLow = (uint16_t)paArgs[0].u.GCPhys; break;
4265	case DBGCVAR_TYPE_HC_FLAT: uLow = (uint16_t)(uintptr_t)paArgs[0].u.pvHCFlat; break;
4266	case DBGCVAR_TYPE_HC_PHYS: uLow = (uint16_t)paArgs[0].u.HCPhys; break;
4267	case DBGCVAR_TYPE_NUMBER: uLow = (uint16_t)paArgs[0].u.u64Number; break;
4268	default:
4269	AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4270	}
4271	DBGCVAR_INIT_NUMBER(pResult, uLow);
4272	DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4273
4274	NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4275	return VINF_SUCCESS;
4276	}
4277
4278
4279	/**
4280	* @callback_method_impl{The low(value) function implementation.}
4281	*/
4282	static DECLCALLBACK(int) dbgcFuncNot(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4283	PDBGCVAR pResult)
4284	{
4285	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4286	NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4287	return DBGCCmdHlpEval(pCmdHlp, pResult, "!(%Dv)", &paArgs[0]);
4288	}
4289
4290
4291	/** Generic pointer argument wo/ range. */
4292	static const DBGCVARDESC g_aArgPointerWoRange[] =
4293	{
4294	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4295	{ 1, 1, DBGCVAR_CAT_POINTER_NO_RANGE, 0, "value", "Address or number." },
4296	};
4297
4298	/** Generic pointer or number argument. */
4299	static const DBGCVARDESC g_aArgPointerNumber[] =
4300	{
4301	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4302	{ 1, 1, DBGCVAR_CAT_POINTER_NUMBER, 0, "value", "Address or number." },
4303	};
4304
4305
4306
4307	/** Function descriptors for the CodeView / WinDbg emulation.
4308	* The emulation isn't attempting to be identical, only somewhat similar.
4309	*/
4310	const DBGCFUNC g_aFuncsCodeView[] =
4311	{
4312	{ "by", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU8, "address", "Reads a byte at the given address." },
4313	{ "dwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU32, "address", "Reads a 32-bit value at the given address." },
4314	{ "hi", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncHi, "value", "Returns the high 16-bit bits of a value." },
4315	{ "low", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncLow, "value", "Returns the low 16-bit bits of a value." },
4316	{ "not", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncNot, "address", "Boolean NOT." },
4317	{ "poi", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadPtr, "address", "Reads a pointer sized (CS) value at the given address." },
4318	{ "qwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU64, "address", "Reads a 32-bit value at the given address." },
4319	{ "wo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU16, "address", "Reads a 16-bit value at the given address." },
4320	};
4321
4322	/** The number of functions in the CodeView/WinDbg emulation. */
4323	const uint32_t g_cFuncsCodeView = RT_ELEMENTS(g_aFuncsCodeView);
4324

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source: vbox/trunk/src/VBox/Debugger/DBGCEmulateCodeView.cpp@ 48030

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