DBGCEmulateCodeView.cpp@ 59036

Last change on this file since 59036 was 58903, checked in by vboxsync, 9 years ago
DBGF: I/O and MMIO breakpoint API changes.
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1	/* $Id: DBGCEmulateCodeView.cpp 58903 2015-11-27 15:07:07Z vboxsync $ */
2	/** @file
3	* DBGC - Debugger Console, CodeView / WinDbg Emulation.
4	*/
5
6	/*
7	* Copyright (C) 2006-2015 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	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	#define LOG_GROUP LOG_GROUP_DBGC
23	#include <VBox/dbg.h>
24	#include <VBox/vmm/dbgf.h>
25	#include <VBox/vmm/pgm.h>
26	#include <VBox/vmm/cpum.h>
27	#include <VBox/dis.h>
28	#include <VBox/param.h>
29	#include <VBox/err.h>
30	#include <VBox/log.h>
31
32	#include <iprt/asm.h>
33	#include <iprt/mem.h>
34	#include <iprt/string.h>
35	#include <iprt/assert.h>
36	#include <iprt/ctype.h>
37
38	#include <stdlib.h>
39	#include <stdio.h>
40
41	#include "DBGCInternal.h"
42
43
44	/*********************************************************************************************************************************
45	* Internal Functions *
46	*********************************************************************************************************************************/
47	static FNDBGCCMD dbgcCmdBrkAccess;
48	static FNDBGCCMD dbgcCmdBrkClear;
49	static FNDBGCCMD dbgcCmdBrkDisable;
50	static FNDBGCCMD dbgcCmdBrkEnable;
51	static FNDBGCCMD dbgcCmdBrkList;
52	static FNDBGCCMD dbgcCmdBrkSet;
53	static FNDBGCCMD dbgcCmdBrkREM;
54	static FNDBGCCMD dbgcCmdDumpMem;
55	static FNDBGCCMD dbgcCmdDumpDT;
56	static FNDBGCCMD dbgcCmdDumpIDT;
57	static FNDBGCCMD dbgcCmdDumpPageDir;
58	static FNDBGCCMD dbgcCmdDumpPageDirBoth;
59	static FNDBGCCMD dbgcCmdDumpPageHierarchy;
60	static FNDBGCCMD dbgcCmdDumpPageTable;
61	static FNDBGCCMD dbgcCmdDumpPageTableBoth;
62	static FNDBGCCMD dbgcCmdDumpTSS;
63	static FNDBGCCMD dbgcCmdEditMem;
64	static FNDBGCCMD dbgcCmdGo;
65	static FNDBGCCMD dbgcCmdListModules;
66	static FNDBGCCMD dbgcCmdListNear;
67	static FNDBGCCMD dbgcCmdListSource;
68	static FNDBGCCMD dbgcCmdMemoryInfo;
69	static FNDBGCCMD dbgcCmdReg;
70	static FNDBGCCMD dbgcCmdRegGuest;
71	static FNDBGCCMD dbgcCmdRegHyper;
72	static FNDBGCCMD dbgcCmdRegTerse;
73	static FNDBGCCMD dbgcCmdSearchMem;
74	static FNDBGCCMD dbgcCmdSearchMemType;
75	static FNDBGCCMD dbgcCmdEventCtrl;
76	static FNDBGCCMD dbgcCmdEventCtrlList;
77	static FNDBGCCMD dbgcCmdEventCtrlReset;
78	static FNDBGCCMD dbgcCmdStack;
79	static FNDBGCCMD dbgcCmdTrace;
80	static FNDBGCCMD dbgcCmdUnassemble;
81
82
83	/*********************************************************************************************************************************
84	* Global Variables *
85	*********************************************************************************************************************************/
86	/** 'ba' arguments. */
87	static const DBGCVARDESC g_aArgBrkAcc[] =
88	{
89	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
90	{ 1, 1, DBGCVAR_CAT_STRING, 0, "access", "The access type: x=execute, rw=read/write (alias r), w=write, i=not implemented." },
91	{ 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." },
92	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
93	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
94	{ 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)" },
95	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
96	};
97
98
99	/** 'bc', 'bd', 'be' arguments. */
100	static const DBGCVARDESC g_aArgBrks[] =
101	{
102	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
103	{ 0, ~0U, DBGCVAR_CAT_NUMBER, 0, "#bp", "Breakpoint number." },
104	{ 0, 1, DBGCVAR_CAT_STRING, 0, "all", "All breakpoints." },
105	};
106
107
108	/** 'bp' arguments. */
109	static const DBGCVARDESC g_aArgBrkSet[] =
110	{
111	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
112	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
113	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
114	{ 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)" },
115	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
116	};
117
118
119	/** 'br' arguments. */
120	static const DBGCVARDESC g_aArgBrkREM[] =
121	{
122	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
123	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
124	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
125	{ 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)" },
126	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
127	};
128
129
130	/** 'd?' arguments. */
131	static const DBGCVARDESC g_aArgDumpMem[] =
132	{
133	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
134	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start dumping memory." },
135	};
136
137
138	/** 'dg', 'dga', 'dl', 'dla' arguments. */
139	static const DBGCVARDESC g_aArgDumpDT[] =
140	{
141	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
142	{ 0, ~0U, DBGCVAR_CAT_NUMBER, 0, "sel", "Selector or selector range." },
143	{ 0, ~0U, DBGCVAR_CAT_POINTER, 0, "address", "Far address which selector should be dumped." },
144	};
145
146
147	/** 'di', 'dia' arguments. */
148	static const DBGCVARDESC g_aArgDumpIDT[] =
149	{
150	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
151	{ 0, ~0U, DBGCVAR_CAT_NUMBER, 0, "int", "The interrupt vector or interrupt vector range." },
152	};
153
154
155	/** 'dpd' arguments. /
156	static const DBGCVARDESC g_aArgDumpPD[] =
157	{
158	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
159	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "index", "Index into the page directory." },
160	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from. Range is applied to the page directory." },
161	};
162
163
164	/** 'dpda' arguments. */
165	static const DBGCVARDESC g_aArgDumpPDAddr[] =
166	{
167	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
168	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page directory entry to start dumping from." },
169	};
170
171
172	/** 'dph' arguments. /
173	static const DBGCVARDESC g_aArgDumpPH[] =
174	{
175	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
176	{ 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." },
177	{ 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." },
178	{ 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." },
179	};
180
181
182	/** 'dpt?' arguments. */
183	static const DBGCVARDESC g_aArgDumpPT[] =
184	{
185	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
186	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from." },
187	};
188
189
190	/** 'dpta' arguments. */
191	static const DBGCVARDESC g_aArgDumpPTAddr[] =
192	{
193	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
194	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page table entry to start dumping from." },
195	};
196
197
198	/** 'dt' arguments. */
199	static const DBGCVARDESC g_aArgDumpTSS[] =
200	{
201	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
202	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "tss", "TSS selector number." },
203	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "tss:ign\|addr", "TSS address. If the selector is a TSS selector, the offset will be ignored." }
204	};
205
206
207	/** 'e?' arguments. */
208	static const DBGCVARDESC g_aArgEditMem[] =
209	{
210	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
211	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to write." },
212	{ 1, ~0U, DBGCVAR_CAT_NUMBER, 0, "value", "Value to write." },
213	};
214
215
216	/** 'lm' arguments. */
217	static const DBGCVARDESC g_aArgListMods[] =
218	{
219	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
220	{ 0, ~0U, DBGCVAR_CAT_STRING, 0, "module", "Module name." },
221	};
222
223
224	/** 'ln' arguments. */
225	static const DBGCVARDESC g_aArgListNear[] =
226	{
227	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
228	{ 0, ~0U, DBGCVAR_CAT_POINTER, 0, "address", "Address of the symbol to look up." },
229	{ 0, ~0U, DBGCVAR_CAT_SYMBOL, 0, "symbol", "Symbol to lookup." },
230	};
231
232
233	/** 'ls' arguments. */
234	static const DBGCVARDESC g_aArgListSource[] =
235	{
236	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
237	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start looking for source lines." },
238	};
239
240
241	/** 'm' argument. */
242	static const DBGCVARDESC g_aArgMemoryInfo[] =
243	{
244	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
245	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Pointer to obtain info about." },
246	};
247
248
249	/** 'r' arguments. */
250	static const DBGCVARDESC g_aArgReg[] =
251	{
252	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
253	{ 0, 1, DBGCVAR_CAT_SYMBOL, 0, "register", "Register to show or set." },
254	{ 0, 1, DBGCVAR_CAT_STRING, DBGCVD_FLAGS_DEP_PREV, "=", "Equal sign." },
255	{ 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "value", "New register value." },
256	};
257
258
259	/** 's' arguments. */
260	static const DBGCVARDESC g_aArgSearchMem[] =
261	{
262	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
263	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-b", "Byte string." },
264	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-w", "Word string." },
265	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-d", "DWord string." },
266	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-q", "QWord string." },
267	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-a", "ASCII string." },
268	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-u", "Unicode string." },
269	{ 0, 1, DBGCVAR_CAT_OPTION_NUMBER, 0, "-n <Hits>", "Maximum number of hits." },
270	{ 0, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
271	{ 0, ~0U, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
272	};
273
274
275	/** 's?' arguments. */
276	static const DBGCVARDESC g_aArgSearchMemType[] =
277	{
278	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
279	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
280	{ 1, ~0U, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
281	};
282
283
284	/** 'sxe', 'sxn', 'sxi', 'sx-' arguments. */
285	static const DBGCVARDESC g_aArgEventCtrl[] =
286	{
287	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
288	{ 0, 1, DBGCVAR_CAT_STRING, 0, "-c", "The -c option, requires <cmds>." },
289	{ 0, 1, DBGCVAR_CAT_STRING, DBGCVD_FLAGS_DEP_PREV, "cmds", "Command to execute on this event." },
290	{ 1, ~0U, DBGCVAR_CAT_STRING, 0, "event", "One or more events, 'all' refering to all events." },
291	};
292
293	/** 'sx' and 'sr' arguments. */
294	static const DBGCVARDESC g_aArgEventCtrlOpt[] =
295	{
296	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
297	{ 0, ~0U, DBGCVAR_CAT_STRING, 0, "event", "Zero or more events, 'all' refering to all events and being the default." },
298	};
299
300	/** 'u' arguments. */
301	static const DBGCVARDESC g_aArgUnassemble[] =
302	{
303	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
304	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start disassembling." },
305	};
306
307
308	/** Command descriptors for the CodeView / WinDbg emulation.
309	* The emulation isn't attempting to be identical, only somewhat similar.
310	*/
311	const DBGCCMD g_aCmdsCodeView[] =
312	{
313	/* pszCmd, cArgsMin, cArgsMax, paArgDescs, cArgDescs, fFlags, pfnHandler pszSyntax, ....pszDescription */
314	{ "ba", 3, 6, &g_aArgBrkAcc[0], RT_ELEMENTS(g_aArgBrkAcc), 0, dbgcCmdBrkAccess, "<access> <size> <address> [passes [max passes]] [cmds]",
315	"Sets a data access breakpoint." },
316	{ "bc", 1, ~0U, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkClear, "all \| <bp#> [bp# []]", "Deletes a set of breakpoints." },
317	{ "bd", 1, ~0U, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkDisable, "all \| <bp#> [bp# []]", "Disables a set of breakpoints." },
318	{ "be", 1, ~0U, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkEnable, "all \| <bp#> [bp# []]", "Enables a set of breakpoints." },
319	{ "bl", 0, 0, NULL, 0, 0, dbgcCmdBrkList, "", "Lists all the breakpoints." },
320	{ "bp", 1, 4, &g_aArgBrkSet[0], RT_ELEMENTS(g_aArgBrkSet), 0, dbgcCmdBrkSet, "<address> [passes [max passes]] [cmds]",
321	"Sets a breakpoint (int 3)." },
322	{ "br", 1, 4, &g_aArgBrkREM[0], RT_ELEMENTS(g_aArgBrkREM), 0, dbgcCmdBrkREM, "<address> [passes [max passes]] [cmds]",
323	"Sets a recompiler specific breakpoint." },
324	{ "d", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory using last element size." },
325	{ "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
326	{ "db", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in bytes." },
327	{ "dd", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in double words." },
328	{ "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
329	{ "dg", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT)." },
330	{ "dga", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT) including not-present entries." },
331	{ "di", 0, ~0U, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT)." },
332	{ "dia", 0, ~0U, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT) including not-present entries." },
333	{ "dl", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT)." },
334	{ "dla", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT) including not-present entries." },
335	{ "dpd", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDir, "[addr\|index]", "Dumps page directory entries of the default context." },
336	{ "dpda", 0, 1, &g_aArgDumpPDAddr[0],RT_ELEMENTS(g_aArgDumpPDAddr), 0, dbgcCmdDumpPageDir, "[addr]", "Dumps memory at given address as a page directory." },
337	{ "dpdb", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDirBoth, "[addr\|index]", "Dumps page directory entries of the guest and the hypervisor. " },
338	{ "dpdg", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDir, "[addr\|index]", "Dumps page directory entries of the guest." },
339	{ "dpdh", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDir, "[addr\|index]", "Dumps page directory entries of the hypervisor. " },
340	{ "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." },
341	{ "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." },
342	{ "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." },
343	{ "dpt", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the default context." },
344	{ "dpta", 1, 1, &g_aArgDumpPTAddr[0],RT_ELEMENTS(g_aArgDumpPTAddr), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps memory at given address as a page table." },
345	{ "dptb", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTableBoth,"<addr>", "Dumps page table entries of the guest and the hypervisor." },
346	{ "dptg", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the guest." },
347	{ "dpth", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the hypervisor." },
348	{ "dq", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in quad words." },
349	{ "dt", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the task state segment (TSS)." },
350	{ "dt16", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the 16-bit task state segment (TSS)." },
351	{ "dt32", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the 32-bit task state segment (TSS)." },
352	{ "dt64", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the 64-bit task state segment (TSS)." },
353	{ "dw", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in words." },
354	/** @todo add 'e', 'ea str', 'eza str', 'eu str' and 'ezu str'. See also
355	* dbgcCmdSearchMem and its dbgcVarsToBytes usage. */
356	{ "eb", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 1-byte value to memory." },
357	{ "ew", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 2-byte value to memory." },
358	{ "ed", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 4-byte value to memory." },
359	{ "eq", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 8-byte value to memory." },
360	{ "g", 0, 0, NULL, 0, 0, dbgcCmdGo, "", "Continue execution." },
361	{ "k", 0, 0, NULL, 0, 0, dbgcCmdStack, "", "Callstack." },
362	{ "kg", 0, 0, NULL, 0, 0, dbgcCmdStack, "", "Callstack - guest." },
363	{ "kh", 0, 0, NULL, 0, 0, dbgcCmdStack, "", "Callstack - hypervisor." },
364	{ "lm", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules." },
365	{ "lmv", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules, verbose." },
366	{ "lmo", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules and their segments." },
367	{ "lmov", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules and their segments, verbose." },
368	{ "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." },
369	{ "ls", 0, 1, &g_aArgListSource[0],RT_ELEMENTS(g_aArgListSource), 0, dbgcCmdListSource, "[addr]", "Source." },
370	{ "m", 1, 1, &g_aArgMemoryInfo[0],RT_ELEMENTS(g_aArgMemoryInfo), 0, dbgcCmdMemoryInfo, "<addr>", "Display information about that piece of memory." },
371	{ "r", 0, 3, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdReg, "[reg [[=] newval]]", "Show or set register(s) - active reg set." },
372	{ "rg", 0, 3, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdRegGuest, "[reg [[=] newval]]", "Show or set register(s) - guest reg set." },
373	{ "rg32", 0, 0, NULL, 0, 0, dbgcCmdRegGuest, "", "Show 32-bit guest registers." },
374	{ "rg64", 0, 0, NULL, 0, 0, dbgcCmdRegGuest, "", "Show 64-bit guest registers." },
375	{ "rh", 0, 3, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdRegHyper, "[reg [[=] newval]]", "Show or set register(s) - hypervisor reg set." },
376	{ "rt", 0, 0, NULL, 0, 0, dbgcCmdRegTerse, "", "Toggles terse / verbose register info." },
377	{ "s", 0, ~0U, &g_aArgSearchMem[0], RT_ELEMENTS(g_aArgSearchMem), 0, dbgcCmdSearchMem, "[options] <range> <pattern>", "Continue last search." },
378	{ "sa", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an ascii string." },
379	{ "sb", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more bytes." },
380	{ "sd", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more double words." },
381	{ "sq", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more quad words." },
382	{ "su", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an unicode string." },
383	{ "sw", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more words." },
384	{ "sx", 0, 0, &g_aArgEventCtrlOpt[0], RT_ELEMENTS(g_aArgEventCtrlOpt), 0, dbgcCmdEventCtrlList, "[<event> [..]]", "Lists settings for exceptions, exits and other events. All if no filter is specified." },
385	{ "sx-", 2, ~0U, &g_aArgEventCtrl[0], RT_ELEMENTS(g_aArgEventCtrl), 0, dbgcCmdEventCtrl, "-c <cmd> <event> [..]", "Modifies the command for one or more exceptions, exits or other event. 'all' addresses all." },
386	{ "sxe", 2, ~0U, &g_aArgEventCtrl[0], RT_ELEMENTS(g_aArgEventCtrl), 0, dbgcCmdEventCtrl, "[-c <cmd>] <event> [..]", "Enable: Break into the debugger on the specified exceptions, exits and other events. 'all' addresses all." },
387	{ "sxn", 2, ~0U, &g_aArgEventCtrl[0], RT_ELEMENTS(g_aArgEventCtrl), 0, dbgcCmdEventCtrl, "[-c <cmd>] <event> [..]", "Notify: Display info in the debugger and continue on the specified exceptions, exits and other events. 'all' addresses all." },
388	{ "sxi", 2, ~0U, &g_aArgEventCtrl[0], RT_ELEMENTS(g_aArgEventCtrl), 0, dbgcCmdEventCtrl, "[-c <cmd>] <event> [..]", "Ignore: Ignore the specified exceptions, exits and other events ('all' = all of them). Without the -c option, the guest runs like normal." },
389	{ "sxr", 0, 0, &g_aArgEventCtrlOpt[0], RT_ELEMENTS(g_aArgEventCtrlOpt), 0, dbgcCmdEventCtrlReset, "", "Reset the settings to default for exceptions, exits and other events. All if no filter is specified." },
390	{ "t", 0, 0, NULL, 0, 0, dbgcCmdTrace, "", "Instruction trace (step into)." },
391	{ "u", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble." },
392	{ "u64", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 64-bit code." },
393	{ "u32", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 32-bit code." },
394	{ "u16", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code." },
395	{ "uv86", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code with v8086/real mode addressing." },
396	};
397
398	/** The number of commands in the CodeView/WinDbg emulation. */
399	const uint32_t g_cCmdsCodeView = RT_ELEMENTS(g_aCmdsCodeView);
400
401
402
403
404	/**
405	* @callback_method_impl{FNDBGCCMD, The 'go' command.}
406	*/
407	static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
408	{
409	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
410
411	/*
412	* Check if the VM is halted or not before trying to resume it.
413	*/
414	if (!DBGFR3IsHalted(pUVM))
415	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The VM is already running");
416
417	int rc = DBGFR3Resume(pUVM);
418	if (RT_FAILURE(rc))
419	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3Resume");
420
421	NOREF(paArgs); NOREF(cArgs);
422	return VINF_SUCCESS;
423	}
424
425
426	/**
427	* @callback_method_impl{FNDBGCCMD, The 'ba' command.}
428	*/
429	static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
430	{
431	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
432
433	/*
434	* Interpret access type.
435	*/
436	if ( !strchr("xrwi", paArgs[0].u.pszString[0])
437	\|\| paArgs[0].u.pszString[1])
438	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access type '%s' for '%s'. Valid types are 'e', 'r', 'w' and 'i'",
439	paArgs[0].u.pszString, pCmd->pszCmd);
440	uint8_t fType = 0;
441	switch (paArgs[0].u.pszString[0])
442	{
443	case 'x': fType = X86_DR7_RW_EO; break;
444	case 'r': fType = X86_DR7_RW_RW; break;
445	case 'w': fType = X86_DR7_RW_WO; break;
446	case 'i': fType = X86_DR7_RW_IO; break;
447	}
448
449	/*
450	* Validate size.
451	*/
452	if (fType == X86_DR7_RW_EO && paArgs[1].u.u64Number != 1)
453	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 'x' access type requires size 1!",
454	paArgs[1].u.u64Number, pCmd->pszCmd);
455	switch (paArgs[1].u.u64Number)
456	{
457	case 1:
458	case 2:
459	case 4:
460	break;
461	/case 8: - later/
462	default:
463	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 1, 2 or 4!",
464	paArgs[1].u.u64Number, pCmd->pszCmd);
465	}
466	uint8_t cb = (uint8_t)paArgs[1].u.u64Number;
467
468	/*
469	* Convert the pointer to a DBGF address.
470	*/
471	DBGFADDRESS Address;
472	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[2], &Address);
473	if (RT_FAILURE(rc))
474	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,%DV,)", &paArgs[2]);
475
476	/*
477	* Pick out the optional arguments.
478	*/
479	uint64_t iHitTrigger = 0;
480	uint64_t iHitDisable = ~0;
481	const char *pszCmds = NULL;
482	unsigned iArg = 3;
483	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
484	{
485	iHitTrigger = paArgs[iArg].u.u64Number;
486	iArg++;
487	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
488	{
489	iHitDisable = paArgs[iArg].u.u64Number;
490	iArg++;
491	}
492	}
493	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
494	{
495	pszCmds = paArgs[iArg].u.pszString;
496	iArg++;
497	}
498
499	/*
500	* Try set the breakpoint.
501	*/
502	uint32_t iBp;
503	rc = DBGFR3BpSetReg(pUVM, &Address, iHitTrigger, iHitDisable, fType, cb, &iBp);
504	if (RT_SUCCESS(rc))
505	{
506	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
507	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
508	if (RT_SUCCESS(rc))
509	return DBGCCmdHlpPrintf(pCmdHlp, "Set access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
510	if (rc == VERR_DBGC_BP_EXISTS)
511	{
512	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
513	if (RT_SUCCESS(rc))
514	return DBGCCmdHlpPrintf(pCmdHlp, "Updated access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
515	}
516	int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
517	AssertRC(rc2);
518	}
519	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set access breakpoint at %RGv", Address.FlatPtr);
520	}
521
522
523	/**
524	* @callback_method_impl{FNDBGCCMD, The 'bc' command.}
525	*/
526	static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
527	{
528	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
529
530	/*
531	* Enumerate the arguments.
532	*/
533	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
534	int rc = VINF_SUCCESS;
535	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
536	{
537	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
538	{
539	/* one */
540	uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
541	if (iBp == paArgs[iArg].u.u64Number)
542	{
543	int rc2 = DBGFR3BpClear(pUVM, iBp);
544	if (RT_FAILURE(rc2))
545	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpClear(,%#x)", iBp);
546	if (RT_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
547	dbgcBpDelete(pDbgc, iBp);
548	}
549	else
550	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
551	}
552	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
553	{
554	/* all */
555	PDBGCBP pBp = pDbgc->pFirstBp;
556	while (pBp)
557	{
558	uint32_t iBp = pBp->iBp;
559	pBp = pBp->pNext;
560
561	int rc2 = DBGFR3BpClear(pUVM, iBp);
562	if (RT_FAILURE(rc2))
563	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpClear(,%#x)", iBp);
564	if (RT_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
565	dbgcBpDelete(pDbgc, iBp);
566	}
567	}
568	else
569	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
570	}
571	return rc;
572	}
573
574
575	/**
576	* @callback_method_impl{FNDBGCCMD, The 'bd' command.}
577	*/
578	static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
579	{
580	/*
581	* Enumerate the arguments.
582	*/
583	int rc = VINF_SUCCESS;
584	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
585	{
586	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
587	{
588	/* one */
589	uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
590	if (iBp == paArgs[iArg].u.u64Number)
591	{
592	rc = DBGFR3BpDisable(pUVM, iBp);
593	if (RT_FAILURE(rc))
594	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpDisable failed for breakpoint %#x", iBp);
595	}
596	else
597	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
598	}
599	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
600	{
601	/* all */
602	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
603	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
604	{
605	int rc2 = DBGFR3BpDisable(pUVM, pBp->iBp);
606	if (RT_FAILURE(rc2))
607	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpDisable failed for breakpoint %#x", pBp->iBp);
608	}
609	}
610	else
611	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
612	}
613	return rc;
614	}
615
616
617	/**
618	* @callback_method_impl{FNDBGCCMD, The 'be' command.}
619	*/
620	static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
621	{
622	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
623
624	/*
625	* Enumerate the arguments.
626	*/
627	int rc = VINF_SUCCESS;
628	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
629	{
630	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
631	{
632	/* one */
633	uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
634	if (iBp == paArgs[iArg].u.u64Number)
635	{
636	rc = DBGFR3BpEnable(pUVM, iBp);
637	if (RT_FAILURE(rc))
638	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnable failed for breakpoint %#x", iBp);
639	}
640	else
641	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
642	}
643	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
644	{
645	/* all */
646	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
647	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
648	{
649	int rc2 = DBGFR3BpEnable(pUVM, pBp->iBp);
650	if (RT_FAILURE(rc2))
651	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpEnable failed for breakpoint %#x", pBp->iBp);
652	}
653	}
654	else
655	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
656	}
657	return rc;
658	}
659
660
661	/**
662	* Breakpoint enumeration callback function.
663	*
664	* @returns VBox status code. Any failure will stop the enumeration.
665	* @param pUVM The user mode VM handle.
666	* @param pvUser The user argument.
667	* @param pBp Pointer to the breakpoint information. (readonly)
668	*/
669	static DECLCALLBACK(int) dbgcEnumBreakpointsCallback(PUVM pUVM, void *pvUser, PCDBGFBP pBp)
670	{
671	PDBGC pDbgc = (PDBGC)pvUser;
672	PDBGCBP pDbgcBp = dbgcBpGet(pDbgc, pBp->iBp);
673
674	/*
675	* BP type and size.
676	*/
677	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%#4x %c ", pBp->iBp, pBp->fEnabled ? 'e' : 'd');
678	bool fHasAddress = false;
679	switch (pBp->enmType)
680	{
681	case DBGFBPTYPE_INT3:
682	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " p %RGv", pBp->u.Int3.GCPtr);
683	fHasAddress = true;
684	break;
685	case DBGFBPTYPE_REG:
686	{
687	char chType;
688	switch (pBp->u.Reg.fType)
689	{
690	case X86_DR7_RW_EO: chType = 'x'; break;
691	case X86_DR7_RW_WO: chType = 'w'; break;
692	case X86_DR7_RW_IO: chType = 'i'; break;
693	case X86_DR7_RW_RW: chType = 'r'; break;
694	default: chType = '?'; break;
695
696	}
697	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%d %c %RGv", pBp->u.Reg.cb, chType, pBp->u.Reg.GCPtr);
698	fHasAddress = true;
699	break;
700	}
701
702	case DBGFBPTYPE_REM:
703	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " r %RGv", pBp->u.Rem.GCPtr);
704	fHasAddress = true;
705	break;
706
707	/** @todo realign the list when I/O and MMIO breakpoint command have been added and it's possible to test this code. */
708	case DBGFBPTYPE_PORT_IO:
709	case DBGFBPTYPE_MMIO:
710	{
711	uint32_t fAccess = pBp->enmType == DBGFBPTYPE_PORT_IO ? pBp->u.PortIo.fAccess : pBp->u.Mmio.fAccess;
712	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, pBp->enmType == DBGFBPTYPE_PORT_IO ? " i" : " m");
713	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " %c%c%c%c%c%c",
714	fAccess & DBGFBPIOACCESS_READ_MASK ? 'r' : '-',
715	fAccess & DBGFBPIOACCESS_READ_BYTE ? '1' : '-',
716	fAccess & DBGFBPIOACCESS_READ_WORD ? '2' : '-',
717	fAccess & DBGFBPIOACCESS_READ_DWORD ? '4' : '-',
718	fAccess & DBGFBPIOACCESS_READ_QWORD ? '8' : '-',
719	fAccess & DBGFBPIOACCESS_READ_OTHER ? '+' : '-');
720	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " %c%c%c%c%c%c",
721	fAccess & DBGFBPIOACCESS_WRITE_MASK ? 'w' : '-',
722	fAccess & DBGFBPIOACCESS_WRITE_BYTE ? '1' : '-',
723	fAccess & DBGFBPIOACCESS_WRITE_WORD ? '2' : '-',
724	fAccess & DBGFBPIOACCESS_WRITE_DWORD ? '4' : '-',
725	fAccess & DBGFBPIOACCESS_WRITE_QWORD ? '8' : '-',
726	fAccess & DBGFBPIOACCESS_WRITE_OTHER ? '+' : '-');
727	if (pBp->enmType == DBGFBPTYPE_PORT_IO)
728	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " %04x-%04x",
729	pBp->u.PortIo.uPort, pBp->u.PortIo.uPort + pBp->u.PortIo.cPorts - 1);
730	else
731	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%RGp LB %03x", pBp->u.Mmio.PhysAddr, pBp->u.Mmio.cb);
732	break;
733	}
734
735	default:
736	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " unknown type %d!!", pBp->enmType);
737	AssertFailed();
738	break;
739
740	}
741	if (pBp->iHitDisable == ~(uint64_t)0)
742	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " %04RX64 (%04RX64 to ~0) ", pBp->cHits, pBp->iHitTrigger);
743	else
744	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " %04RX64 (%04RX64 to %04RX64)", pBp->cHits, pBp->iHitTrigger, pBp->iHitDisable);
745
746	/*
747	* Try resolve the address if it has one.
748	*/
749	if (fHasAddress)
750	{
751	RTDBGSYMBOL Sym;
752	RTINTPTR off;
753	DBGFADDRESS Addr;
754	int rc = DBGFR3AsSymbolByAddr(pUVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pDbgc->pUVM, &Addr, pBp->u.GCPtr),
755	RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &off, &Sym, NULL);
756	if (RT_SUCCESS(rc))
757	{
758	if (!off)
759	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s", Sym.szName);
760	else if (off > 0)
761	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s+%RGv", Sym.szName, off);
762	else
763	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s-%RGv", Sym.szName, -off);
764	}
765	}
766
767	/*
768	* The commands.
769	*/
770	if (pDbgcBp)
771	{
772	if (pDbgcBp->cchCmd)
773	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n cmds: '%s'\n", pDbgcBp->szCmd);
774	else
775	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n");
776	}
777	else
778	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " [unknown bp]\n");
779
780	return VINF_SUCCESS;
781	}
782
783
784	/**
785	* @callback_method_impl{FNDBGCCMD, The 'bl' command.}
786	*/
787	static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
788	{
789	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
790	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, -1, cArgs == 0);
791	NOREF(paArgs);
792
793	/*
794	* Enumerate the breakpoints.
795	*/
796	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
797	int rc = DBGFR3BpEnum(pUVM, dbgcEnumBreakpointsCallback, pDbgc);
798	if (RT_FAILURE(rc))
799	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnum");
800	return rc;
801	}
802
803
804	/**
805	* @callback_method_impl{FNDBGCCMD, The 'bp' command.}
806	*/
807	static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
808	{
809	/*
810	* Convert the pointer to a DBGF address.
811	*/
812	DBGFADDRESS Address;
813	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
814	if (RT_FAILURE(rc))
815	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
816
817	/*
818	* Pick out the optional arguments.
819	*/
820	uint64_t iHitTrigger = 0;
821	uint64_t iHitDisable = ~0;
822	const char *pszCmds = NULL;
823	unsigned iArg = 1;
824	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
825	{
826	iHitTrigger = paArgs[iArg].u.u64Number;
827	iArg++;
828	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
829	{
830	iHitDisable = paArgs[iArg].u.u64Number;
831	iArg++;
832	}
833	}
834	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
835	{
836	pszCmds = paArgs[iArg].u.pszString;
837	iArg++;
838	}
839
840	/*
841	* Try set the breakpoint.
842	*/
843	uint32_t iBp;
844	rc = DBGFR3BpSet(pUVM, &Address, iHitTrigger, iHitDisable, &iBp);
845	if (RT_SUCCESS(rc))
846	{
847	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
848	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
849	if (RT_SUCCESS(rc))
850	return DBGCCmdHlpPrintf(pCmdHlp, "Set breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
851	if (rc == VERR_DBGC_BP_EXISTS)
852	{
853	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
854	if (RT_SUCCESS(rc))
855	return DBGCCmdHlpPrintf(pCmdHlp, "Updated breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
856	}
857	int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
858	AssertRC(rc2);
859	}
860	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set breakpoint at %RGv", Address.FlatPtr);
861	}
862
863
864	/**
865	* @callback_method_impl{FNDBGCCMD, The 'br' command.}
866	*/
867	static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
868	{
869	/*
870	* Convert the pointer to a DBGF address.
871	*/
872	DBGFADDRESS Address;
873	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
874	if (RT_FAILURE(rc))
875	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
876
877	/*
878	* Pick out the optional arguments.
879	*/
880	uint64_t iHitTrigger = 0;
881	uint64_t iHitDisable = ~0;
882	const char *pszCmds = NULL;
883	unsigned iArg = 1;
884	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
885	{
886	iHitTrigger = paArgs[iArg].u.u64Number;
887	iArg++;
888	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
889	{
890	iHitDisable = paArgs[iArg].u.u64Number;
891	iArg++;
892	}
893	}
894	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
895	{
896	pszCmds = paArgs[iArg].u.pszString;
897	iArg++;
898	}
899
900	/*
901	* Try set the breakpoint.
902	*/
903	uint32_t iBp;
904	rc = DBGFR3BpSetREM(pUVM, &Address, iHitTrigger, iHitDisable, &iBp);
905	if (RT_SUCCESS(rc))
906	{
907	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
908	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
909	if (RT_SUCCESS(rc))
910	return DBGCCmdHlpPrintf(pCmdHlp, "Set REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
911	if (rc == VERR_DBGC_BP_EXISTS)
912	{
913	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
914	if (RT_SUCCESS(rc))
915	return DBGCCmdHlpPrintf(pCmdHlp, "Updated REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
916	}
917	int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
918	AssertRC(rc2);
919	}
920	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set REM breakpoint at %RGv", Address.FlatPtr);
921	}
922
923
924	/**
925	* Helps the unassmble ('u') command display symbols it starts at and passes.
926	*
927	* @param pUVM The user mode VM handle.
928	* @param pCmdHlp The command helpers for printing via.
929	* @param hDbgAs The address space to look up addresses in.
930	* @param pAddress The current address.
931	* @param pcbCallAgain Where to return the distance to the next check (in
932	* instruction bytes).
933	*/
934	static void dbgcCmdUnassambleHelpListNear(PUVM pUVM, PDBGCCMDHLP pCmdHlp, RTDBGAS hDbgAs, PCDBGFADDRESS pAddress,
935	PRTUINTPTR pcbCallAgain)
936	{
937	RTDBGSYMBOL Symbol;
938	RTGCINTPTR offDispSym;
939	int rc = DBGFR3AsSymbolByAddr(pUVM, hDbgAs, pAddress, RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &offDispSym, &Symbol, NULL);
940	if (RT_FAILURE(rc) \|\| offDispSym > _1G)
941	rc = DBGFR3AsSymbolByAddr(pUVM, hDbgAs, pAddress, RTDBGSYMADDR_FLAGS_GREATER_OR_EQUAL, &offDispSym, &Symbol, NULL);
942	if (RT_SUCCESS(rc) && offDispSym < _1G)
943	{
944	if (!offDispSym)
945	{
946	DBGCCmdHlpPrintf(pCmdHlp, "%s:\n", Symbol.szName);
947	*pcbCallAgain = !Symbol.cb ? 64 : Symbol.cb;
948	}
949	else if (offDispSym > 0)
950	{
951	DBGCCmdHlpPrintf(pCmdHlp, "%s+%#llx:\n", Symbol.szName, (uint64_t)offDispSym);
952	*pcbCallAgain = !Symbol.cb ? 64 : Symbol.cb > (RTGCUINTPTR)offDispSym ? Symbol.cb - (RTGCUINTPTR)offDispSym : 1;
953	}
954	else
955	{
956	DBGCCmdHlpPrintf(pCmdHlp, "%s-%#llx:\n", Symbol.szName, (uint64_t)-offDispSym);
957	*pcbCallAgain = !Symbol.cb ? 64 : (RTGCUINTPTR)-offDispSym + Symbol.cb;
958	}
959	}
960	else
961	*pcbCallAgain = UINT32_MAX;
962	}
963
964
965	/**
966	* @callback_method_impl{FNDBGCCMD, The 'u' command.}
967	*/
968	static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
969	{
970	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
971
972	/*
973	* Validate input.
974	*/
975	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
976	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, -1, cArgs <= 1);
977	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 0 \|\| DBGCVAR_ISPOINTER(paArgs[0].enmType));
978
979	if (!cArgs && !DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
980	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Don't know where to start disassembling");
981
982	/*
983	* Check the desired mode.
984	*/
985	unsigned fFlags = DBGF_DISAS_FLAGS_NO_ADDRESS \| DBGF_DISAS_FLAGS_UNPATCHED_BYTES \| DBGF_DISAS_FLAGS_ANNOTATE_PATCHED;
986	switch (pCmd->pszCmd[1])
987	{
988	default: AssertFailed();
989	case '\0': fFlags \|= DBGF_DISAS_FLAGS_DEFAULT_MODE; break;
990	case '6': fFlags \|= DBGF_DISAS_FLAGS_64BIT_MODE; break;
991	case '3': fFlags \|= DBGF_DISAS_FLAGS_32BIT_MODE; break;
992	case '1': fFlags \|= DBGF_DISAS_FLAGS_16BIT_MODE; break;
993	case 'v': fFlags \|= DBGF_DISAS_FLAGS_16BIT_REAL_MODE; break;
994	}
995
996	/** @todo should use DBGFADDRESS for everything */
997
998	/*
999	* Find address.
1000	*/
1001	if (!cArgs)
1002	{
1003	if (!DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
1004	{
1005	/** @todo Batch query CS, RIP, CPU mode and flags. */
1006	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
1007	if ( pDbgc->fRegCtxGuest
1008	&& CPUMIsGuestIn64BitCode(pVCpu))
1009	{
1010	pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FLAT;
1011	pDbgc->SourcePos.u.GCFlat = CPUMGetGuestRIP(pVCpu);
1012	}
1013	else
1014	{
1015	pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FAR;
1016	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
1017	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
1018	if ( (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_DEFAULT_MODE
1019	&& pDbgc->fRegCtxGuest
1020	&& (CPUMGetGuestEFlags(pVCpu) & X86_EFL_VM))
1021	{
1022	fFlags &= ~DBGF_DISAS_FLAGS_MODE_MASK;
1023	fFlags \|= DBGF_DISAS_FLAGS_16BIT_REAL_MODE;
1024	}
1025	}
1026
1027	if (pDbgc->fRegCtxGuest)
1028	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_GUEST;
1029	else
1030	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_HYPER \| DBGF_DISAS_FLAGS_HYPER;
1031	}
1032	else if ((fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_DEFAULT_MODE && pDbgc->fDisasm)
1033	{
1034	fFlags &= ~DBGF_DISAS_FLAGS_MODE_MASK;
1035	fFlags \|= pDbgc->fDisasm & (DBGF_DISAS_FLAGS_MODE_MASK \| DBGF_DISAS_FLAGS_HYPER);
1036	}
1037	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_NONE;
1038	}
1039	else
1040	pDbgc->DisasmPos = paArgs[0];
1041	pDbgc->pLastPos = &pDbgc->DisasmPos;
1042
1043	/*
1044	* Range.
1045	*/
1046	switch (pDbgc->DisasmPos.enmRangeType)
1047	{
1048	case DBGCVAR_RANGE_NONE:
1049	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1050	pDbgc->DisasmPos.u64Range = 10;
1051	break;
1052
1053	case DBGCVAR_RANGE_ELEMENTS:
1054	if (pDbgc->DisasmPos.u64Range > 2048)
1055	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Too many lines requested. Max is 2048 lines");
1056	break;
1057
1058	case DBGCVAR_RANGE_BYTES:
1059	if (pDbgc->DisasmPos.u64Range > 65536)
1060	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The requested range is too big. Max is 64KB");
1061	break;
1062
1063	default:
1064	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown range type %d", pDbgc->DisasmPos.enmRangeType);
1065	}
1066
1067	/*
1068	* Convert physical and host addresses to guest addresses.
1069	*/
1070	RTDBGAS hDbgAs = pDbgc->hDbgAs;
1071	int rc;
1072	switch (pDbgc->DisasmPos.enmType)
1073	{
1074	case DBGCVAR_TYPE_GC_FLAT:
1075	case DBGCVAR_TYPE_GC_FAR:
1076	break;
1077	case DBGCVAR_TYPE_GC_PHYS:
1078	hDbgAs = DBGF_AS_PHYS;
1079	case DBGCVAR_TYPE_HC_FLAT:
1080	case DBGCVAR_TYPE_HC_PHYS:
1081	{
1082	DBGCVAR VarTmp;
1083	rc = DBGCCmdHlpEval(pCmdHlp, &VarTmp, "%%(%Dv)", &pDbgc->DisasmPos);
1084	if (RT_FAILURE(rc))
1085	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "failed to evaluate '%%(%Dv)'", &pDbgc->DisasmPos);
1086	pDbgc->DisasmPos = VarTmp;
1087	break;
1088	}
1089	default: AssertFailed(); break;
1090	}
1091
1092	DBGFADDRESS CurAddr;
1093	if ( (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_16BIT_REAL_MODE
1094	&& pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FAR)
1095	DBGFR3AddrFromFlat(pUVM, &CurAddr, ((uint32_t)pDbgc->DisasmPos.u.GCFar.sel << 4) + pDbgc->DisasmPos.u.GCFar.off);
1096	else
1097	{
1098	rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->DisasmPos, &CurAddr);
1099	if (RT_FAILURE(rc))
1100	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr failed on '%Dv'", &pDbgc->DisasmPos);
1101	}
1102
1103	if (CurAddr.fFlags & DBGFADDRESS_FLAGS_HMA)
1104	fFlags \|= DBGF_DISAS_FLAGS_HYPER; /* This crap is due to not using DBGFADDRESS as DBGFR3Disas* input. */
1105	pDbgc->fDisasm = fFlags;
1106
1107	/*
1108	* Figure out where we are and display it. Also calculate when we need to
1109	* check for a new symbol if possible.
1110	*/
1111	RTGCUINTPTR cbCheckSymbol;
1112	dbgcCmdUnassambleHelpListNear(pUVM, pCmdHlp, hDbgAs, &CurAddr, &cbCheckSymbol);
1113
1114	/*
1115	* Do the disassembling.
1116	*/
1117	unsigned cTries = 32;
1118	int iRangeLeft = (int)pDbgc->DisasmPos.u64Range;
1119	if (iRangeLeft == 0) /* kludge for 'r'. */
1120	iRangeLeft = -1;
1121	for (;;)
1122	{
1123	/*
1124	* Disassemble the instruction.
1125	*/
1126	char szDis[256];
1127	uint32_t cbInstr = 1;
1128	if (pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FLAT)
1129	rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, DBGF_SEL_FLAT, pDbgc->DisasmPos.u.GCFlat, fFlags,
1130	&szDis[0], sizeof(szDis), &cbInstr);
1131	else
1132	rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, pDbgc->DisasmPos.u.GCFar.sel, pDbgc->DisasmPos.u.GCFar.off, fFlags,
1133	&szDis[0], sizeof(szDis), &cbInstr);
1134	if (RT_SUCCESS(rc))
1135	{
1136	/* print it */
1137	rc = DBGCCmdHlpPrintf(pCmdHlp, "%-16DV %s\n", &pDbgc->DisasmPos, &szDis[0]);
1138	if (RT_FAILURE(rc))
1139	return rc;
1140	}
1141	else
1142	{
1143	/* bitch. */
1144	int rc2 = DBGCCmdHlpPrintf(pCmdHlp, "Failed to disassemble instruction, skipping one byte.\n");
1145	if (RT_FAILURE(rc2))
1146	return rc2;
1147	if (cTries-- > 0)
1148	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Too many disassembly failures. Giving up");
1149	cbInstr = 1;
1150	}
1151
1152	/* advance */
1153	if (iRangeLeft < 0) /* 'r' */
1154	break;
1155	if (pDbgc->DisasmPos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1156	iRangeLeft--;
1157	else
1158	iRangeLeft -= cbInstr;
1159	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DisasmPos, "(%Dv) + %x", &pDbgc->DisasmPos, cbInstr);
1160	if (RT_FAILURE(rc))
1161	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpEval(,,'(%Dv) + %x')", &pDbgc->DisasmPos, cbInstr);
1162	if (iRangeLeft <= 0)
1163	break;
1164	fFlags &= ~(DBGF_DISAS_FLAGS_CURRENT_GUEST \| DBGF_DISAS_FLAGS_CURRENT_HYPER);
1165
1166	/* Print next symbol? */
1167	if (cbCheckSymbol <= cbInstr)
1168	{
1169	if ( (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_16BIT_REAL_MODE
1170	&& pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FAR)
1171	DBGFR3AddrFromFlat(pUVM, &CurAddr, ((uint32_t)pDbgc->DisasmPos.u.GCFar.sel << 4) + pDbgc->DisasmPos.u.GCFar.off);
1172	else
1173	rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->DisasmPos, &CurAddr);
1174	if (RT_SUCCESS(rc))
1175	dbgcCmdUnassambleHelpListNear(pUVM, pCmdHlp, hDbgAs, &CurAddr, &cbCheckSymbol);
1176	else
1177	cbCheckSymbol = UINT32_MAX;
1178	}
1179	else
1180	cbCheckSymbol -= cbInstr;
1181	}
1182
1183	NOREF(pCmd);
1184	return VINF_SUCCESS;
1185	}
1186
1187
1188	/**
1189	* @callback_method_impl{FNDBGCCMD, The 'ls' command.}
1190	*/
1191	static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1192	{
1193	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1194
1195	/*
1196	* Validate input.
1197	*/
1198	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
1199	if (cArgs == 1)
1200	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
1201	if (!pUVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1202	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Don't know where to start listing...");
1203	if (!pUVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
1204	return DBGCCmdHlpFail(pCmdHlp, pCmd, "GC address but no VM");
1205
1206	/*
1207	* Find address.
1208	*/
1209	if (!cArgs)
1210	{
1211	if (!DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1212	{
1213	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
1214	pDbgc->SourcePos.enmType = DBGCVAR_TYPE_GC_FAR;
1215	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
1216	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
1217	}
1218	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_NONE;
1219	}
1220	else
1221	pDbgc->SourcePos = paArgs[0];
1222	pDbgc->pLastPos = &pDbgc->SourcePos;
1223
1224	/*
1225	* Ensure the source address is flat GC.
1226	*/
1227	switch (pDbgc->SourcePos.enmType)
1228	{
1229	case DBGCVAR_TYPE_GC_FLAT:
1230	break;
1231	case DBGCVAR_TYPE_GC_PHYS:
1232	case DBGCVAR_TYPE_GC_FAR:
1233	case DBGCVAR_TYPE_HC_FLAT:
1234	case DBGCVAR_TYPE_HC_PHYS:
1235	{
1236	int rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "%%(%Dv)", &pDbgc->SourcePos);
1237	if (RT_FAILURE(rc))
1238	return DBGCCmdHlpPrintf(pCmdHlp, "error: Invalid address or address type. (rc=%d)\n", rc);
1239	break;
1240	}
1241	default: AssertFailed(); break;
1242	}
1243
1244	/*
1245	* Range.
1246	*/
1247	switch (pDbgc->SourcePos.enmRangeType)
1248	{
1249	case DBGCVAR_RANGE_NONE:
1250	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1251	pDbgc->SourcePos.u64Range = 10;
1252	break;
1253
1254	case DBGCVAR_RANGE_ELEMENTS:
1255	if (pDbgc->SourcePos.u64Range > 2048)
1256	return DBGCCmdHlpPrintf(pCmdHlp, "error: Too many lines requested. Max is 2048 lines.\n");
1257	break;
1258
1259	case DBGCVAR_RANGE_BYTES:
1260	if (pDbgc->SourcePos.u64Range > 65536)
1261	return DBGCCmdHlpPrintf(pCmdHlp, "error: The requested range is too big. Max is 64KB.\n");
1262	break;
1263
1264	default:
1265	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: Unknown range type %d.\n", pDbgc->SourcePos.enmRangeType);
1266	}
1267
1268	/*
1269	* Do the disassembling.
1270	*/
1271	bool fFirst = 1;
1272	RTDBGLINE LinePrev = { 0, 0, 0, 0, 0, "" };
1273	int iRangeLeft = (int)pDbgc->SourcePos.u64Range;
1274	if (iRangeLeft == 0) /* kludge for 'r'. */
1275	iRangeLeft = -1;
1276	for (;;)
1277	{
1278	/*
1279	* Get line info.
1280	*/
1281	RTDBGLINE Line;
1282	RTGCINTPTR off;
1283	DBGFADDRESS SourcePosAddr;
1284	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->SourcePos, &SourcePosAddr);
1285	if (RT_FAILURE(rc))
1286	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,%Dv)", &pDbgc->SourcePos);
1287	rc = DBGFR3AsLineByAddr(pUVM, pDbgc->hDbgAs, &SourcePosAddr, &off, &Line, NULL);
1288	if (RT_FAILURE(rc))
1289	return VINF_SUCCESS;
1290
1291	unsigned cLines = 0;
1292	if (memcmp(&Line, &LinePrev, sizeof(Line)))
1293	{
1294	/*
1295	* Print filenamename
1296	*/
1297	if (!fFirst && strcmp(Line.szFilename, LinePrev.szFilename))
1298	fFirst = true;
1299	if (fFirst)
1300	{
1301	rc = DBGCCmdHlpPrintf(pCmdHlp, "[%s @ %d]\n", Line.szFilename, Line.uLineNo);
1302	if (RT_FAILURE(rc))
1303	return rc;
1304	}
1305
1306	/*
1307	* Try open the file and read the line.
1308	*/
1309	FILE *phFile = fopen(Line.szFilename, "r");
1310	if (phFile)
1311	{
1312	/* Skip ahead to the desired line. */
1313	char szLine[4096];
1314	unsigned cBefore = fFirst ? RT_MIN(2, Line.uLineNo - 1) : Line.uLineNo - LinePrev.uLineNo - 1;
1315	if (cBefore > 7)
1316	cBefore = 0;
1317	unsigned cLeft = Line.uLineNo - cBefore;
1318	while (cLeft > 0)
1319	{
1320	szLine[0] = '\0';
1321	if (!fgets(szLine, sizeof(szLine), phFile))
1322	break;
1323	cLeft--;
1324	}
1325	if (!cLeft)
1326	{
1327	/* print the before lines */
1328	for (;;)
1329	{
1330	size_t cch = strlen(szLine);
1331	while (cch > 0 && (szLine[cch - 1] == '\r' \|\| szLine[cch - 1] == '\n' \|\| RT_C_IS_SPACE(szLine[cch - 1])) )
1332	szLine[--cch] = '\0';
1333	if (cBefore-- <= 0)
1334	break;
1335
1336	rc = DBGCCmdHlpPrintf(pCmdHlp, " %4d: %s\n", Line.uLineNo - cBefore - 1, szLine);
1337	szLine[0] = '\0';
1338	(void)fgets(szLine, sizeof(szLine), phFile);
1339	cLines++;
1340	}
1341	/* print the actual line */
1342	rc = DBGCCmdHlpPrintf(pCmdHlp, "%08llx %4d: %s\n", Line.Address, Line.uLineNo, szLine);
1343	}
1344	fclose(phFile);
1345	if (RT_FAILURE(rc))
1346	return rc;
1347	fFirst = false;
1348	}
1349	else
1350	return DBGCCmdHlpPrintf(pCmdHlp, "Warning: couldn't open source file '%s'\n", Line.szFilename);
1351
1352	LinePrev = Line;
1353	}
1354
1355
1356	/*
1357	* Advance
1358	*/
1359	if (iRangeLeft < 0) /* 'r' */
1360	break;
1361	if (pDbgc->SourcePos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1362	iRangeLeft -= cLines;
1363	else
1364	iRangeLeft -= 1;
1365	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "(%Dv) + %x", &pDbgc->SourcePos, 1);
1366	if (RT_FAILURE(rc))
1367	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->SourcePos, 1);
1368	if (iRangeLeft <= 0)
1369	break;
1370	}
1371
1372	NOREF(pCmd);
1373	return 0;
1374	}
1375
1376
1377	/**
1378	* @callback_method_impl{FNDBGCCMD, The 'r' command.}
1379	*/
1380	static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1381	{
1382	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1383	if (!pDbgc->fRegCtxGuest)
1384	return dbgcCmdRegHyper(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1385	return dbgcCmdRegGuest(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1386	}
1387
1388
1389	/**
1390	* @callback_method_impl{FNDBGCCMD, Common worker for the dbgcCmdReg*()
1391	* commands.}
1392	*/
1393	static DECLCALLBACK(int) dbgcCmdRegCommon(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs,
1394	const char *pszPrefix)
1395	{
1396	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1397	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1 \|\| cArgs == 2 \|\| cArgs == 3);
1398	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_STRING
1399	\|\| paArgs[0].enmType == DBGCVAR_TYPE_SYMBOL);
1400
1401	/*
1402	* Parse the register name and kind.
1403	*/
1404	const char *pszReg = paArgs[0].u.pszString;
1405	if (*pszReg == '@')
1406	pszReg++;
1407	VMCPUID idCpu = pDbgc->idCpu;
1408	if (*pszPrefix)
1409	idCpu \|= DBGFREG_HYPER_VMCPUID;
1410	if (*pszReg == '.')
1411	{
1412	pszReg++;
1413	idCpu \|= DBGFREG_HYPER_VMCPUID;
1414	}
1415	const char * const pszActualPrefix = idCpu & DBGFREG_HYPER_VMCPUID ? "." : "";
1416
1417	/*
1418	* Query the register type & value (the setter needs the type).
1419	*/
1420	DBGFREGVALTYPE enmType;
1421	DBGFREGVAL Value;
1422	int rc = DBGFR3RegNmQuery(pUVM, idCpu, pszReg, &Value, &enmType);
1423	if (RT_FAILURE(rc))
1424	{
1425	if (rc == VERR_DBGF_REGISTER_NOT_FOUND)
1426	return DBGCCmdHlpVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "Unknown register: '%s%s'.\n",
1427	pszActualPrefix, pszReg);
1428	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmQuery failed querying '%s%s': %Rrc.\n",
1429	pszActualPrefix, pszReg, rc);
1430	}
1431	if (cArgs == 1)
1432	{
1433	/*
1434	* Show the register.
1435	*/
1436	char szValue[160];
1437	rc = DBGFR3RegFormatValue(szValue, sizeof(szValue), &Value, enmType, true /fSpecial/);
1438	if (RT_SUCCESS(rc))
1439	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s%s=%s\n", pszActualPrefix, pszReg, szValue);
1440	else
1441	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1442	}
1443	else
1444	{
1445	DBGCVAR NewValueTmp;
1446	PCDBGCVAR pNewValue;
1447	if (cArgs == 3)
1448	{
1449	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 1, paArgs[1].enmType == DBGCVAR_TYPE_STRING);
1450	if (strcmp(paArgs[1].u.pszString, "="))
1451	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Second argument must be '='.");
1452	pNewValue = &paArgs[2];
1453	}
1454	else
1455	{
1456	/* Not possible to convince the parser to support both codeview and
1457	windbg syntax and make the equal sign optional. Try help it. */
1458	/** @todo make DBGCCmdHlpConvert do more with strings. */
1459	rc = DBGCCmdHlpConvert(pCmdHlp, &paArgs[1], DBGCVAR_TYPE_NUMBER, true /fConvSyms/, &NewValueTmp);
1460	if (RT_FAILURE(rc))
1461	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "The last argument must be a value or valid symbol.");
1462	pNewValue = &NewValueTmp;
1463	}
1464
1465	/*
1466	* Modify the register.
1467	*/
1468	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 1, pNewValue->enmType == DBGCVAR_TYPE_NUMBER);
1469	if (enmType != DBGFREGVALTYPE_DTR)
1470	{
1471	enmType = DBGFREGVALTYPE_U64;
1472	rc = DBGCCmdHlpVarToNumber(pCmdHlp, pNewValue, &Value.u64);
1473	}
1474	else
1475	{
1476	enmType = DBGFREGVALTYPE_DTR;
1477	rc = DBGCCmdHlpVarToNumber(pCmdHlp, pNewValue, &Value.dtr.u64Base);
1478	if (RT_SUCCESS(rc) && pNewValue->enmRangeType != DBGCVAR_RANGE_NONE)
1479	Value.dtr.u32Limit = (uint32_t)pNewValue->u64Range;
1480	}
1481	if (RT_SUCCESS(rc))
1482	{
1483	rc = DBGFR3RegNmSet(pUVM, idCpu, pszReg, &Value, enmType);
1484	if (RT_FAILURE(rc))
1485	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmSet failed settings '%s%s': %Rrc\n",
1486	pszActualPrefix, pszReg, rc);
1487	if (rc != VINF_SUCCESS)
1488	DBGCCmdHlpPrintf(pCmdHlp, "%s: warning: %Rrc\n", pCmd->pszCmd, rc);
1489	}
1490	else
1491	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1492	}
1493	return rc;
1494	}
1495
1496
1497	/**
1498	* @callback_method_impl{FNDBGCCMD,
1499	* The 'rg'\, 'rg64' and 'rg32' commands\, worker for 'r'.}
1500	*/
1501	static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1502	{
1503	/*
1504	* Show all registers our selves.
1505	*/
1506	if (cArgs == 0)
1507	{
1508	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1509	bool const f64BitMode = !strcmp(pCmd->pszCmd, "rg64")
1510	\|\| ( strcmp(pCmd->pszCmd, "rg32") != 0
1511	&& DBGFR3CpuIsIn64BitCode(pUVM, pDbgc->idCpu));
1512	char szDisAndRegs[8192];
1513	int rc;
1514
1515	if (pDbgc->fRegTerse)
1516	{
1517	if (f64BitMode)
1518	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1519	"u %016VR{rip} L 0\n"
1520	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1521	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1522	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1523	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1524	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1525	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} rflags=%08VR{rflags}\n");
1526	else
1527	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1528	"u %04VR{cs}:%08VR{eip} L 0\n"
1529	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1530	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1531	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} eflags=%08VR{eflags}\n");
1532	}
1533	else
1534	{
1535	if (f64BitMode)
1536	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1537	"u %016VR{rip} L 0\n"
1538	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1539	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1540	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1541	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1542	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1543	"cs={%04VR{cs} base=%016VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} cr0=%016VR{cr0}\n"
1544	"ds={%04VR{ds} base=%016VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} cr2=%016VR{cr2}\n"
1545	"es={%04VR{es} base=%016VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} cr3=%016VR{cr3}\n"
1546	"fs={%04VR{fs} base=%016VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr4=%016VR{cr4}\n"
1547	"gs={%04VR{gs} base=%016VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr8=%016VR{cr8}\n"
1548	"ss={%04VR{ss} base=%016VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1549	"dr0=%016VR{dr0} dr1=%016VR{dr1} dr2=%016VR{dr2} dr3=%016VR{dr3}\n"
1550	"dr6=%016VR{dr6} dr7=%016VR{dr7}\n"
1551	"gdtr=%016VR{gdtr_base}:%04VR{gdtr_lim} idtr=%016VR{idtr_base}:%04VR{idtr_lim} rflags=%08VR{rflags}\n"
1552	"ldtr={%04VR{ldtr} base=%016VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%08VR{ldtr_attr}}\n"
1553	"tr ={%04VR{tr} base=%016VR{tr_base} limit=%08VR{tr_lim} flags=%08VR{tr_attr}}\n"
1554	" sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1555	" efer=%016VR{efer}\n"
1556	" pat=%016VR{pat}\n"
1557	" sf_mask=%016VR{sf_mask}\n"
1558	"krnl_gs_base=%016VR{krnl_gs_base}\n"
1559	" lstar=%016VR{lstar}\n"
1560	" star=%016VR{star} cstar=%016VR{cstar}\n"
1561	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1562	);
1563	else
1564	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1565	"u %04VR{cs}:%08VR{eip} L 0\n"
1566	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1567	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1568	"cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} dr0=%08VR{dr0} dr1=%08VR{dr1}\n"
1569	"ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} dr2=%08VR{dr2} dr3=%08VR{dr3}\n"
1570	"es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} dr6=%08VR{dr6} dr7=%08VR{dr7}\n"
1571	"fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr0=%08VR{cr0} cr2=%08VR{cr2}\n"
1572	"gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr3=%08VR{cr3} cr4=%08VR{cr4}\n"
1573	"ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}} cr8=%08VR{cr8}\n"
1574	"gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} idtr=%08VR{idtr_base}:%04VR{idtr_lim} eflags=%08VR{eflags}\n"
1575	"ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1576	"tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1577	"sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1578	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1579	);
1580	}
1581	if (RT_FAILURE(rc))
1582	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1583	char *pszRegs = strchr(szDisAndRegs, '\n');
1584	*pszRegs++ = '\0';
1585	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1586
1587	/*
1588	* Disassemble one instruction at cs:[r\|e]ip.
1589	*/
1590	if (!f64BitMode && strstr(pszRegs, " vm ")) /* a big ugly... */
1591	return pCmdHlp->pfnExec(pCmdHlp, "uv86 %s", szDisAndRegs + 2);
1592	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1593	}
1594	return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, "");
1595	}
1596
1597
1598	/**
1599	* @callback_method_impl{FNDBGCCMD, The 'rh' command.}
1600	*/
1601	static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1602	{
1603	/*
1604	* Show all registers our selves.
1605	*/
1606	if (cArgs == 0)
1607	{
1608	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1609	char szDisAndRegs[8192];
1610	int rc;
1611
1612	if (pDbgc->fRegTerse)
1613	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1614	"u %VR{cs}:%VR{eip} L 0\n"
1615	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1616	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1617	".cs=%04VR{cs} .ds=%04VR{ds} .es=%04VR{es} .fs=%04VR{fs} .gs=%04VR{gs} .ss=%04VR{ss} .eflags=%08VR{eflags}\n");
1618	else
1619	rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1620	"u %04VR{cs}:%08VR{eip} L 0\n"
1621	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1622	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1623	".cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} .dr0=%08VR{dr0} .dr1=%08VR{dr1}\n"
1624	".ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} .dr2=%08VR{dr2} .dr3=%08VR{dr3}\n"
1625	".es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} .dr6=%08VR{dr6} .dr6=%08VR{dr6}\n"
1626	".fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} .cr3=%016VR{cr3}\n"
1627	".gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}}\n"
1628	".ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1629	".gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} .idtr=%08VR{idtr_base}:%04VR{idtr_lim} .eflags=%08VR{eflags}\n"
1630	".ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1631	".tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1632	);
1633	if (RT_FAILURE(rc))
1634	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1635	char *pszRegs = strchr(szDisAndRegs, '\n');
1636	*pszRegs++ = '\0';
1637	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1638
1639	/*
1640	* Disassemble one instruction at cs:[r\|e]ip.
1641	*/
1642	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1643	}
1644	return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, ".");
1645	}
1646
1647
1648	/**
1649	* @callback_method_impl{FNDBGCCMD, The 'rt' command.}
1650	*/
1651	static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1652	{
1653	NOREF(pCmd); NOREF(pUVM); NOREF(paArgs); NOREF(cArgs);
1654
1655	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1656	pDbgc->fRegTerse = !pDbgc->fRegTerse;
1657	return DBGCCmdHlpPrintf(pCmdHlp, pDbgc->fRegTerse ? "info: Terse register info.\n" : "info: Verbose register info.\n");
1658	}
1659
1660
1661	/**
1662	* @callback_method_impl{FNDBGCCMD, The 't' command.}
1663	*/
1664	static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1665	{
1666	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1667
1668	int rc = DBGFR3Step(pUVM, pDbgc->idCpu);
1669	if (RT_SUCCESS(rc))
1670	pDbgc->fReady = false;
1671	else
1672	rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to single step VM %p\n", pDbgc->pVM);
1673
1674	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
1675	return rc;
1676	}
1677
1678
1679	/**
1680	* @callback_method_impl{FNDBGCCMD, The 'k'\, 'kg' and 'kh' commands.}
1681	*/
1682	static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1683	{
1684	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1685
1686	/*
1687	* Figure which context we're called for and start walking that stack.
1688	*/
1689	int rc;
1690	PCDBGFSTACKFRAME pFirstFrame;
1691	bool const fGuest = pCmd->pszCmd[1] == 'g'
1692	\|\| (!pCmd->pszCmd[1] && pDbgc->fRegCtxGuest);
1693	rc = DBGFR3StackWalkBegin(pUVM, pDbgc->idCpu, fGuest ? DBGFCODETYPE_GUEST : DBGFCODETYPE_HYPER, &pFirstFrame);
1694	if (RT_FAILURE(rc))
1695	return DBGCCmdHlpPrintf(pCmdHlp, "Failed to begin stack walk, rc=%Rrc\n", rc);
1696
1697	/*
1698	* Print header.
1699	* 12345678 12345678 0023:87654321 12345678 87654321 12345678 87654321 symbol
1700	*/
1701	uint32_t fBitFlags = 0;
1702	for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
1703	pFrame;
1704	pFrame = DBGFR3StackWalkNext(pFrame))
1705	{
1706	uint32_t const fCurBitFlags = pFrame->fFlags & (DBGFSTACKFRAME_FLAGS_16BIT \| DBGFSTACKFRAME_FLAGS_32BIT \| DBGFSTACKFRAME_FLAGS_64BIT);
1707	if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_16BIT)
1708	{
1709	if (fCurBitFlags != fBitFlags)
1710	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "SS:BP Ret SS:BP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1711	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04RX16:%04RX16 %04RX16:%04RX16 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1712	pFrame->AddrFrame.Sel,
1713	(uint16_t)pFrame->AddrFrame.off,
1714	pFrame->AddrReturnFrame.Sel,
1715	(uint16_t)pFrame->AddrReturnFrame.off,
1716	(uint32_t)pFrame->AddrReturnPC.Sel,
1717	(uint32_t)pFrame->AddrReturnPC.off,
1718	pFrame->Args.au32[0],
1719	pFrame->Args.au32[1],
1720	pFrame->Args.au32[2],
1721	pFrame->Args.au32[3]);
1722	}
1723	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT)
1724	{
1725	if (fCurBitFlags != fBitFlags)
1726	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1727	rc = DBGCCmdHlpPrintf(pCmdHlp, "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1728	(uint32_t)pFrame->AddrFrame.off,
1729	(uint32_t)pFrame->AddrReturnFrame.off,
1730	(uint32_t)pFrame->AddrReturnPC.Sel,
1731	(uint32_t)pFrame->AddrReturnPC.off,
1732	pFrame->Args.au32[0],
1733	pFrame->Args.au32[1],
1734	pFrame->Args.au32[2],
1735	pFrame->Args.au32[3]);
1736	}
1737	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT)
1738	{
1739	if (fCurBitFlags != fBitFlags)
1740	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "RBP Ret SS:RBP Ret RIP CS:RIP / Symbol [line]\n");
1741	rc = DBGCCmdHlpPrintf(pCmdHlp, "%016RX64 %04RX16:%016RX64 %016RX64",
1742	(uint64_t)pFrame->AddrFrame.off,
1743	pFrame->AddrReturnFrame.Sel,
1744	(uint64_t)pFrame->AddrReturnFrame.off,
1745	(uint64_t)pFrame->AddrReturnPC.off);
1746	}
1747	if (RT_FAILURE(rc))
1748	break;
1749	if (!pFrame->pSymPC)
1750	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1751	fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1752	? " %RTsel:%016RGv"
1753	: fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT
1754	? " %RTsel:%08RGv"
1755	: " %RTsel:%04RGv"
1756	, pFrame->AddrPC.Sel, pFrame->AddrPC.off);
1757	else
1758	{
1759	RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value; /** @todo this isn't 100% correct for segmented stuff. */
1760	if (offDisp > 0)
1761	rc = DBGCCmdHlpPrintf(pCmdHlp, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
1762	else if (offDisp < 0)
1763	rc = DBGCCmdHlpPrintf(pCmdHlp, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
1764	else
1765	rc = DBGCCmdHlpPrintf(pCmdHlp, " %s", pFrame->pSymPC->szName);
1766	}
1767	if (RT_SUCCESS(rc) && pFrame->pLinePC)
1768	rc = DBGCCmdHlpPrintf(pCmdHlp, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
1769	if (RT_SUCCESS(rc))
1770	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
1771	if (RT_FAILURE(rc))
1772	break;
1773
1774	fBitFlags = fCurBitFlags;
1775	}
1776
1777	DBGFR3StackWalkEnd(pFirstFrame);
1778
1779	NOREF(paArgs); NOREF(cArgs);
1780	return rc;
1781	}
1782
1783
1784	static int dbgcCmdDumpDTWorker64(PDBGCCMDHLP pCmdHlp, PCX86DESC64 pDesc, unsigned iEntry, bool fHyper, bool *pfDblEntry)
1785	{
1786	/* GUEST64 */
1787	int rc;
1788
1789	const char *pszHyper = fHyper ? " HYPER" : "";
1790	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1791	if (pDesc->Gen.u1DescType)
1792	{
1793	static const char * const s_apszTypes[] =
1794	{
1795	"DataRO", /* 0 Read-Only */
1796	"DataRO", /* 1 Read-Only - Accessed */
1797	"DataRW", /* 2 Read/Write */
1798	"DataRW", /* 3 Read/Write - Accessed */
1799	"DownRO", /* 4 Expand-down, Read-Only */
1800	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1801	"DownRW", /* 6 Expand-down, Read/Write */
1802	"DownRW", /* 7 Expand-down, Read/Write - Accessed */
1803	"CodeEO", /* 8 Execute-Only */
1804	"CodeEO", /* 9 Execute-Only - Accessed */
1805	"CodeER", /* A Execute/Readable */
1806	"CodeER", /* B Execute/Readable - Accessed */
1807	"ConfE0", /* C Conforming, Execute-Only */
1808	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1809	"ConfER", /* E Conforming, Execute/Readable */
1810	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1811	};
1812	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1813	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1814	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1815	uint32_t u32Base = X86DESC_BASE(pDesc);
1816	uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1817
1818	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1819	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1820	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1821	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1822	}
1823	else
1824	{
1825	static const char * const s_apszTypes[] =
1826	{
1827	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1828	"Ill-1 ", /* 1 0001 Available 16-bit TSS */
1829	"LDT ", /* 2 0010 LDT */
1830	"Ill-3 ", /* 3 0011 Busy 16-bit TSS */
1831	"Ill-4 ", /* 4 0100 16-bit Call Gate */
1832	"Ill-5 ", /* 5 0101 Task Gate */
1833	"Ill-6 ", /* 6 0110 16-bit Interrupt Gate */
1834	"Ill-7 ", /* 7 0111 16-bit Trap Gate */
1835	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1836	"Tss64A", /* 9 1001 Available 32-bit TSS */
1837	"Ill-A ", /* A 1010 Reserved (Illegal) */
1838	"Tss64B", /* B 1011 Busy 32-bit TSS */
1839	"Call64", /* C 1100 32-bit Call Gate */
1840	"Ill-D ", /* D 1101 Reserved (Illegal) */
1841	"Int64 ", /* E 1110 32-bit Interrupt Gate */
1842	"Trap64" /* F 1111 32-bit Trap Gate */
1843	};
1844	switch (pDesc->Gen.u4Type)
1845	{
1846	/* raw */
1847	case X86_SEL_TYPE_SYS_UNDEFINED:
1848	case X86_SEL_TYPE_SYS_UNDEFINED2:
1849	case X86_SEL_TYPE_SYS_UNDEFINED4:
1850	case X86_SEL_TYPE_SYS_UNDEFINED3:
1851	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1852	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1853	case X86_SEL_TYPE_SYS_286_CALL_GATE:
1854	case X86_SEL_TYPE_SYS_286_INT_GATE:
1855	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1856	case X86_SEL_TYPE_SYS_TASK_GATE:
1857	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1858	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1859	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1860	break;
1861
1862	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1863	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1864	case X86_SEL_TYPE_SYS_LDT:
1865	{
1866	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1867	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1868	const char *pszLong = pDesc->Gen.u1Long ? "LONG" : " ";
1869
1870	uint64_t u64Base = X86DESC64_BASE(pDesc);
1871	uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1872
1873	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%016RX64 Lim=%08x DPL=%d %s %s %s %sAVL=%d R=%d%s\n",
1874	iEntry, s_apszTypes[pDesc->Gen.u4Type], u64Base, cbLimit,
1875	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszLong, pszBig,
1876	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1877	pszHyper);
1878	if (pfDblEntry)
1879	*pfDblEntry = true;
1880	break;
1881	}
1882
1883	case X86_SEL_TYPE_SYS_386_CALL_GATE:
1884	{
1885	unsigned cParams = pDesc->au8[4] & 0x1f;
1886	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1887	RTSEL sel = pDesc->au16[1];
1888	uint64_t off = pDesc->au16[0]
1889	\| ((uint64_t)pDesc->au16[3] << 16)
1890	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1891	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s %s=%d%s\n",
1892	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1893	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1894	if (pfDblEntry)
1895	*pfDblEntry = true;
1896	break;
1897	}
1898
1899	case X86_SEL_TYPE_SYS_386_INT_GATE:
1900	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1901	{
1902	RTSEL sel = pDesc->Gate.u16Sel;
1903	uint64_t off = pDesc->Gate.u16OffsetLow
1904	\| ((uint64_t)pDesc->Gate.u16OffsetHigh << 16)
1905	\| ((uint64_t)pDesc->Gate.u32OffsetTop << 32);
1906	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%016RX64 DPL=%u %s IST=%u%s\n",
1907	iEntry, s_apszTypes[pDesc->Gate.u4Type], sel, off,
1908	pDesc->Gate.u2Dpl, pszPresent, pDesc->Gate.u3IST, pszHyper);
1909	if (pfDblEntry)
1910	*pfDblEntry = true;
1911	break;
1912	}
1913
1914	/* impossible, just it's necessary to keep gcc happy. */
1915	default:
1916	return VINF_SUCCESS;
1917	}
1918	}
1919	return VINF_SUCCESS;
1920	}
1921
1922
1923	/**
1924	* Worker function that displays one descriptor entry (GDT, LDT, IDT).
1925	*
1926	* @returns pfnPrintf status code.
1927	* @param pCmdHlp The DBGC command helpers.
1928	* @param pDesc The descriptor to display.
1929	* @param iEntry The descriptor entry number.
1930	* @param fHyper Whether the selector belongs to the hypervisor or not.
1931	*/
1932	static int dbgcCmdDumpDTWorker32(PDBGCCMDHLP pCmdHlp, PCX86DESC pDesc, unsigned iEntry, bool fHyper)
1933	{
1934	int rc;
1935
1936	const char *pszHyper = fHyper ? " HYPER" : "";
1937	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1938	if (pDesc->Gen.u1DescType)
1939	{
1940	static const char * const s_apszTypes[] =
1941	{
1942	"DataRO", /* 0 Read-Only */
1943	"DataRO", /* 1 Read-Only - Accessed */
1944	"DataRW", /* 2 Read/Write */
1945	"DataRW", /* 3 Read/Write - Accessed */
1946	"DownRO", /* 4 Expand-down, Read-Only */
1947	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1948	"DownRW", /* 6 Expand-down, Read/Write */
1949	"DownRW", /* 7 Expand-down, Read/Write - Accessed */
1950	"CodeEO", /* 8 Execute-Only */
1951	"CodeEO", /* 9 Execute-Only - Accessed */
1952	"CodeER", /* A Execute/Readable */
1953	"CodeER", /* B Execute/Readable - Accessed */
1954	"ConfE0", /* C Conforming, Execute-Only */
1955	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1956	"ConfER", /* E Conforming, Execute/Readable */
1957	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1958	};
1959	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1960	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1961	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1962	uint32_t u32Base = pDesc->Gen.u16BaseLow
1963	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1964	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1965	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1966	if (pDesc->Gen.u1Granularity)
1967	cbLimit <<= PAGE_SHIFT;
1968
1969	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1970	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1971	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1972	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1973	}
1974	else
1975	{
1976	static const char * const s_apszTypes[] =
1977	{
1978	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1979	"Tss16A", /* 1 0001 Available 16-bit TSS */
1980	"LDT ", /* 2 0010 LDT */
1981	"Tss16B", /* 3 0011 Busy 16-bit TSS */
1982	"Call16", /* 4 0100 16-bit Call Gate */
1983	"TaskG ", /* 5 0101 Task Gate */
1984	"Int16 ", /* 6 0110 16-bit Interrupt Gate */
1985	"Trap16", /* 7 0111 16-bit Trap Gate */
1986	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1987	"Tss32A", /* 9 1001 Available 32-bit TSS */
1988	"Ill-A ", /* A 1010 Reserved (Illegal) */
1989	"Tss32B", /* B 1011 Busy 32-bit TSS */
1990	"Call32", /* C 1100 32-bit Call Gate */
1991	"Ill-D ", /* D 1101 Reserved (Illegal) */
1992	"Int32 ", /* E 1110 32-bit Interrupt Gate */
1993	"Trap32" /* F 1111 32-bit Trap Gate */
1994	};
1995	switch (pDesc->Gen.u4Type)
1996	{
1997	/* raw */
1998	case X86_SEL_TYPE_SYS_UNDEFINED:
1999	case X86_SEL_TYPE_SYS_UNDEFINED2:
2000	case X86_SEL_TYPE_SYS_UNDEFINED4:
2001	case X86_SEL_TYPE_SYS_UNDEFINED3:
2002	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s %.8Rhxs DPL=%d %s%s\n",
2003	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
2004	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
2005	break;
2006
2007	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
2008	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
2009	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
2010	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
2011	case X86_SEL_TYPE_SYS_LDT:
2012	{
2013	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
2014	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
2015	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
2016	uint32_t u32Base = pDesc->Gen.u16BaseLow
2017	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
2018	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
2019	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
2020	if (pDesc->Gen.u1Granularity)
2021	cbLimit <<= PAGE_SHIFT;
2022
2023	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
2024	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
2025	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszGranularity, pszBig,
2026	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
2027	pszHyper);
2028	break;
2029	}
2030
2031	case X86_SEL_TYPE_SYS_TASK_GATE:
2032	{
2033	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s TSS=%04x DPL=%d %s%s\n",
2034	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc->au16[1],
2035	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
2036	break;
2037	}
2038
2039	case X86_SEL_TYPE_SYS_286_CALL_GATE:
2040	case X86_SEL_TYPE_SYS_386_CALL_GATE:
2041	{
2042	unsigned cParams = pDesc->au8[4] & 0x1f;
2043	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
2044	RTSEL sel = pDesc->au16[1];
2045	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
2046	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%08x DPL=%d %s %s=%d%s\n",
2047	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
2048	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
2049	break;
2050	}
2051
2052	case X86_SEL_TYPE_SYS_286_INT_GATE:
2053	case X86_SEL_TYPE_SYS_386_INT_GATE:
2054	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
2055	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
2056	{
2057	RTSEL sel = pDesc->au16[1];
2058	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
2059	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%08x DPL=%d %s%s\n",
2060	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
2061	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
2062	break;
2063	}
2064
2065	/* impossible, just it's necessary to keep gcc happy. */
2066	default:
2067	return VINF_SUCCESS;
2068	}
2069	}
2070	return rc;
2071	}
2072
2073
2074	/**
2075	* @callback_method_impl{FNDBGCCMD, The 'dg'\, 'dga'\, 'dl' and 'dla' commands.}
2076	*/
2077	static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2078	{
2079	/*
2080	* Validate input.
2081	*/
2082	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2083
2084	/*
2085	* Get the CPU mode, check which command variation this is
2086	* and fix a default parameter if needed.
2087	*/
2088	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2089	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
2090	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2091	bool fGdt = pCmd->pszCmd[1] == 'g';
2092	bool fAll = pCmd->pszCmd[2] == 'a';
2093	RTSEL SelTable = fGdt ? 0 : X86_SEL_LDT;
2094
2095	DBGCVAR Var;
2096	if (!cArgs)
2097	{
2098	cArgs = 1;
2099	paArgs = &Var;
2100	Var.enmType = DBGCVAR_TYPE_NUMBER;
2101	Var.u.u64Number = 0;
2102	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2103	Var.u64Range = 1024;
2104	}
2105
2106	/*
2107	* Process the arguments.
2108	*/
2109	for (unsigned i = 0; i < cArgs; i++)
2110	{
2111	/*
2112	* Retrieve the selector value from the argument.
2113	* The parser may confuse pointers and numbers if more than one
2114	* argument is given, that that into account.
2115	*/
2116	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[i].enmType));
2117	uint64_t u64;
2118	unsigned cSels = 1;
2119	switch (paArgs[i].enmType)
2120	{
2121	case DBGCVAR_TYPE_NUMBER:
2122	u64 = paArgs[i].u.u64Number;
2123	if (paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE)
2124	cSels = RT_MIN(paArgs[i].u64Range, 1024);
2125	break;
2126	case DBGCVAR_TYPE_GC_FAR: u64 = paArgs[i].u.GCFar.sel; break;
2127	case DBGCVAR_TYPE_GC_FLAT: u64 = paArgs[i].u.GCFlat; break;
2128	case DBGCVAR_TYPE_GC_PHYS: u64 = paArgs[i].u.GCPhys; break;
2129	case DBGCVAR_TYPE_HC_FLAT: u64 = (uintptr_t)paArgs[i].u.pvHCFlat; break;
2130	case DBGCVAR_TYPE_HC_PHYS: u64 = paArgs[i].u.HCPhys; break;
2131	default: u64 = _64K; break;
2132	}
2133	if (u64 < _64K)
2134	{
2135	unsigned Sel = (RTSEL)u64;
2136
2137	/*
2138	* Dump the specified range.
2139	*/
2140	bool fSingle = cSels == 1;
2141	while ( cSels-- > 0
2142	&& Sel < _64K)
2143	{
2144	DBGFSELINFO SelInfo;
2145	int rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, Sel \| SelTable, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
2146	if (RT_SUCCESS(rc))
2147	{
2148	if (SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE)
2149	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x RealM Bas=%04x Lim=%04x\n",
2150	Sel, (unsigned)SelInfo.GCPtrBase, (unsigned)SelInfo.cbLimit);
2151	else if ( fAll
2152	\|\| fSingle
2153	\|\| SelInfo.u.Raw.Gen.u1Present)
2154	{
2155	if (enmMode == CPUMMODE_PROTECTED)
2156	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &SelInfo.u.Raw, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER));
2157	else
2158	{
2159	bool fDblSkip = false;
2160	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &SelInfo.u.Raw64, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER), &fDblSkip);
2161	if (fDblSkip)
2162	Sel += 4;
2163	}
2164	}
2165	}
2166	else
2167	{
2168	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %Rrc\n", Sel, rc);
2169	if (!fAll)
2170	return rc;
2171	}
2172	if (RT_FAILURE(rc))
2173	return rc;
2174
2175	/* next */
2176	Sel += 8;
2177	}
2178	}
2179	else
2180	DBGCCmdHlpPrintf(pCmdHlp, "error: %llx is out of bounds\n", u64);
2181	}
2182
2183	return VINF_SUCCESS;
2184	}
2185
2186
2187	/**
2188	* @callback_method_impl{FNDBGCCMD, The 'di' and 'dia' commands.}
2189	*/
2190	static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2191	{
2192	/*
2193	* Validate input.
2194	*/
2195	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2196
2197	/*
2198	* Establish some stuff like the current IDTR and CPU mode,
2199	* and fix a default parameter.
2200	*/
2201	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2202	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
2203	uint16_t cbLimit;
2204	RTGCUINTPTR GCPtrBase = CPUMGetGuestIDTR(pVCpu, &cbLimit);
2205	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2206	unsigned cbEntry;
2207	switch (enmMode)
2208	{
2209	case CPUMMODE_REAL: cbEntry = sizeof(RTFAR16); break;
2210	case CPUMMODE_PROTECTED: cbEntry = sizeof(X86DESC); break;
2211	case CPUMMODE_LONG: cbEntry = sizeof(X86DESC64); break;
2212	default:
2213	return DBGCCmdHlpPrintf(pCmdHlp, "error: Invalid CPU mode %d.\n", enmMode);
2214	}
2215
2216	bool fAll = pCmd->pszCmd[2] == 'a';
2217	DBGCVAR Var;
2218	if (!cArgs)
2219	{
2220	cArgs = 1;
2221	paArgs = &Var;
2222	Var.enmType = DBGCVAR_TYPE_NUMBER;
2223	Var.u.u64Number = 0;
2224	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2225	Var.u64Range = 256;
2226	}
2227
2228	/*
2229	* Process the arguments.
2230	*/
2231	for (unsigned i = 0; i < cArgs; i++)
2232	{
2233	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER);
2234	if (paArgs[i].u.u64Number < 256)
2235	{
2236	RTGCUINTPTR iInt = (RTGCUINTPTR)paArgs[i].u.u64Number;
2237	unsigned cInts = paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE
2238	? paArgs[i].u64Range
2239	: 1;
2240	bool fSingle = cInts == 1;
2241	while ( cInts-- > 0
2242	&& iInt < 256)
2243	{
2244	/*
2245	* Try read it.
2246	*/
2247	union
2248	{
2249	RTFAR16 Real;
2250	X86DESC Prot;
2251	X86DESC64 Long;
2252	} u;
2253	if (iInt * cbEntry + (cbEntry - 1) > cbLimit)
2254	{
2255	DBGCCmdHlpPrintf(pCmdHlp, "%04x not within the IDT\n", (unsigned)iInt);
2256	if (!fAll && !fSingle)
2257	return VINF_SUCCESS;
2258	}
2259	DBGCVAR AddrVar;
2260	AddrVar.enmType = DBGCVAR_TYPE_GC_FLAT;
2261	AddrVar.u.GCFlat = GCPtrBase + iInt * cbEntry;
2262	AddrVar.enmRangeType = DBGCVAR_RANGE_NONE;
2263	int rc = pCmdHlp->pfnMemRead(pCmdHlp, &u, cbEntry, &AddrVar, NULL);
2264	if (RT_FAILURE(rc))
2265	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading IDT entry %#04x.\n", (unsigned)iInt);
2266
2267	/*
2268	* Display it.
2269	*/
2270	switch (enmMode)
2271	{
2272	case CPUMMODE_REAL:
2273	rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %RTfp16\n", (unsigned)iInt, u.Real);
2274	/** @todo resolve 16:16 IDTE to a symbol */
2275	break;
2276	case CPUMMODE_PROTECTED:
2277	if (fAll \|\| fSingle \|\| u.Prot.Gen.u1Present)
2278	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &u.Prot, iInt, false);
2279	break;
2280	case CPUMMODE_LONG:
2281	if (fAll \|\| fSingle \|\| u.Long.Gen.u1Present)
2282	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &u.Long, iInt, false, NULL);
2283	break;
2284	default: break; /* to shut up gcc */
2285	}
2286	if (RT_FAILURE(rc))
2287	return rc;
2288
2289	/* next */
2290	iInt++;
2291	}
2292	}
2293	else
2294	DBGCCmdHlpPrintf(pCmdHlp, "error: %llx is out of bounds (max 256)\n", paArgs[i].u.u64Number);
2295	}
2296
2297	return VINF_SUCCESS;
2298	}
2299
2300
2301	/**
2302	* @callback_method_impl{FNDBGCCMD,
2303	* The 'da'\, 'dq'\, 'dd'\, 'dw' and 'db' commands.}
2304	*/
2305	static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2306	{
2307	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2308
2309	/*
2310	* Validate input.
2311	*/
2312	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2313	if (cArgs == 1)
2314	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2315	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2316
2317	/*
2318	* Figure out the element size.
2319	*/
2320	unsigned cbElement;
2321	bool fAscii = false;
2322	switch (pCmd->pszCmd[1])
2323	{
2324	default:
2325	case 'b': cbElement = 1; break;
2326	case 'w': cbElement = 2; break;
2327	case 'd': cbElement = 4; break;
2328	case 'q': cbElement = 8; break;
2329	case 'a':
2330	cbElement = 1;
2331	fAscii = true;
2332	break;
2333	case '\0':
2334	fAscii = !!(pDbgc->cbDumpElement & 0x80000000);
2335	cbElement = pDbgc->cbDumpElement & 0x7fffffff;
2336	if (!cbElement)
2337	cbElement = 1;
2338	break;
2339	}
2340
2341	/*
2342	* Find address.
2343	*/
2344	if (!cArgs)
2345	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_NONE;
2346	else
2347	pDbgc->DumpPos = paArgs[0];
2348
2349	/*
2350	* Range.
2351	*/
2352	switch (pDbgc->DumpPos.enmRangeType)
2353	{
2354	case DBGCVAR_RANGE_NONE:
2355	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2356	pDbgc->DumpPos.u64Range = 0x60;
2357	break;
2358
2359	case DBGCVAR_RANGE_ELEMENTS:
2360	if (pDbgc->DumpPos.u64Range > 2048)
2361	return DBGCCmdHlpPrintf(pCmdHlp, "error: Too many elements requested. Max is 2048 elements.\n");
2362	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2363	pDbgc->DumpPos.u64Range = (cbElement ? cbElement : 1) * pDbgc->DumpPos.u64Range;
2364	break;
2365
2366	case DBGCVAR_RANGE_BYTES:
2367	if (pDbgc->DumpPos.u64Range > 65536)
2368	return DBGCCmdHlpPrintf(pCmdHlp, "error: The requested range is too big. Max is 64KB.\n");
2369	break;
2370
2371	default:
2372	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: Unknown range type %d.\n", pDbgc->DumpPos.enmRangeType);
2373	}
2374
2375	pDbgc->pLastPos = &pDbgc->DumpPos;
2376
2377	/*
2378	* Do the dumping.
2379	*/
2380	pDbgc->cbDumpElement = cbElement \| (fAscii << 31);
2381	int cbLeft = (int)pDbgc->DumpPos.u64Range;
2382	uint8_t u8Prev = '\0';
2383	for (;;)
2384	{
2385	/*
2386	* Read memory.
2387	*/
2388	char achBuffer[16];
2389	size_t cbReq = RT_MIN((int)sizeof(achBuffer), cbLeft);
2390	size_t cb = RT_MIN((int)sizeof(achBuffer), cbLeft);
2391	int rc = pCmdHlp->pfnMemRead(pCmdHlp, &achBuffer, cbReq, &pDbgc->DumpPos, &cb);
2392	if (RT_FAILURE(rc))
2393	{
2394	if (u8Prev && u8Prev != '\n')
2395	DBGCCmdHlpPrintf(pCmdHlp, "\n");
2396	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading memory at %DV.\n", &pDbgc->DumpPos);
2397	}
2398
2399	/*
2400	* Display it.
2401	*/
2402	memset(&achBuffer[cb], 0, sizeof(achBuffer) - cb);
2403	if (!fAscii)
2404	{
2405	DBGCCmdHlpPrintf(pCmdHlp, "%DV:", &pDbgc->DumpPos);
2406	unsigned i;
2407	for (i = 0; i < cb; i += cbElement)
2408	{
2409	const char *pszSpace = " ";
2410	if (cbElement <= 2 && i == 8 && !fAscii)
2411	pszSpace = "-";
2412	switch (cbElement)
2413	{
2414	case 1: DBGCCmdHlpPrintf(pCmdHlp, "%s%02x", pszSpace, (uint8_t )&achBuffer[i]); break;
2415	case 2: DBGCCmdHlpPrintf(pCmdHlp, "%s%04x", pszSpace, (uint16_t )&achBuffer[i]); break;
2416	case 4: DBGCCmdHlpPrintf(pCmdHlp, "%s%08x", pszSpace, (uint32_t )&achBuffer[i]); break;
2417	case 8: DBGCCmdHlpPrintf(pCmdHlp, "%s%016llx", pszSpace, (uint64_t )&achBuffer[i]); break;
2418	}
2419	}
2420
2421	/* chars column */
2422	if (pDbgc->cbDumpElement == 1)
2423	{
2424	while (i++ < sizeof(achBuffer))
2425	DBGCCmdHlpPrintf(pCmdHlp, " ");
2426	DBGCCmdHlpPrintf(pCmdHlp, " ");
2427	for (i = 0; i < cb; i += cbElement)
2428	{
2429	uint8_t u8 = (uint8_t )&achBuffer[i];
2430	if (RT_C_IS_PRINT(u8) && u8 < 127 && u8 >= 32)
2431	DBGCCmdHlpPrintf(pCmdHlp, "%c", u8);
2432	else
2433	DBGCCmdHlpPrintf(pCmdHlp, ".");
2434	}
2435	}
2436	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2437	}
2438	else
2439	{
2440	/*
2441	* We print up to the first zero and stop there.
2442	* Only printables + '\t' and '\n' are printed.
2443	*/
2444	if (!u8Prev)
2445	DBGCCmdHlpPrintf(pCmdHlp, "%DV:\n", &pDbgc->DumpPos);
2446	uint8_t u8 = '\0';
2447	unsigned i;
2448	for (i = 0; i < cb; i++)
2449	{
2450	u8Prev = u8;
2451	u8 = (uint8_t )&achBuffer[i];
2452	if ( u8 < 127
2453	&& ( (RT_C_IS_PRINT(u8) && u8 >= 32)
2454	\|\| u8 == '\t'
2455	\|\| u8 == '\n'))
2456	DBGCCmdHlpPrintf(pCmdHlp, "%c", u8);
2457	else if (!u8)
2458	break;
2459	else
2460	DBGCCmdHlpPrintf(pCmdHlp, "\\x%x", u8);
2461	}
2462	if (u8 == '\0')
2463	cb = cbLeft = i + 1;
2464	if (cbLeft - cb <= 0 && u8Prev != '\n')
2465	DBGCCmdHlpPrintf(pCmdHlp, "\n");
2466	}
2467
2468	/*
2469	* Advance
2470	*/
2471	cbLeft -= (int)cb;
2472	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DumpPos, "(%Dv) + %x", &pDbgc->DumpPos, cb);
2473	if (RT_FAILURE(rc))
2474	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DumpPos, cb);
2475	if (cbLeft <= 0)
2476	break;
2477	}
2478
2479	NOREF(pCmd);
2480	return VINF_SUCCESS;
2481	}
2482
2483
2484	/**
2485	* Best guess at which paging mode currently applies to the guest
2486	* paging structures.
2487	*
2488	* This have to come up with a decent answer even when the guest
2489	* is in non-paged protected mode or real mode.
2490	*
2491	* @returns cr3.
2492	* @param pDbgc The DBGC instance.
2493	* @param pfPAE Where to store the page address extension indicator.
2494	* @param pfLME Where to store the long mode enabled indicator.
2495	* @param pfPSE Where to store the page size extension indicator.
2496	* @param pfPGE Where to store the page global enabled indicator.
2497	* @param pfNXE Where to store the no-execution enabled indicator.
2498	*/
2499	static RTGCPHYS dbgcGetGuestPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2500	{
2501	PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2502	RTGCUINTREG cr4 = CPUMGetGuestCR4(pVCpu);
2503	*pfPSE = !!(cr4 & X86_CR4_PSE);
2504	*pfPGE = !!(cr4 & X86_CR4_PGE);
2505	if (cr4 & X86_CR4_PAE)
2506	{
2507	*pfPSE = true;
2508	*pfPAE = true;
2509	}
2510	else
2511	*pfPAE = false;
2512
2513	*pfLME = CPUMGetGuestMode(pVCpu) == CPUMMODE_LONG;
2514	pfNXE = false; / GUEST64 GUESTNX */
2515	return CPUMGetGuestCR3(pVCpu);
2516	}
2517
2518
2519	/**
2520	* Determine the shadow paging mode.
2521	*
2522	* @returns cr3.
2523	* @param pDbgc The DBGC instance.
2524	* @param pfPAE Where to store the page address extension indicator.
2525	* @param pfLME Where to store the long mode enabled indicator.
2526	* @param pfPSE Where to store the page size extension indicator.
2527	* @param pfPGE Where to store the page global enabled indicator.
2528	* @param pfNXE Where to store the no-execution enabled indicator.
2529	*/
2530	static RTHCPHYS dbgcGetShadowPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2531	{
2532	PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2533
2534	*pfPSE = true;
2535	*pfPGE = false;
2536	switch (PGMGetShadowMode(pVCpu))
2537	{
2538	default:
2539	case PGMMODE_32_BIT:
2540	pfPAE = pfLME = *pfNXE = false;
2541	break;
2542	case PGMMODE_PAE:
2543	pfLME = pfNXE = false;
2544	*pfPAE = true;
2545	break;
2546	case PGMMODE_PAE_NX:
2547	*pfLME = false;
2548	pfPAE = pfNXE = true;
2549	break;
2550	case PGMMODE_AMD64:
2551	*pfNXE = false;
2552	pfPAE = pfLME = true;
2553	break;
2554	case PGMMODE_AMD64_NX:
2555	pfPAE = pfLME = *pfNXE = true;
2556	break;
2557	}
2558	return PGMGetHyperCR3(pVCpu);
2559	}
2560
2561
2562	/**
2563	* @callback_method_impl{FNDBGCCMD,
2564	* The 'dpd'\, 'dpda'\, 'dpdb'\, 'dpdg' and 'dpdh' commands.}
2565	*/
2566	static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2567	{
2568	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2569
2570	/*
2571	* Validate input.
2572	*/
2573	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2574	if (cArgs == 1 && pCmd->pszCmd[3] == 'a')
2575	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2576	if (cArgs == 1 && pCmd->pszCmd[3] != 'a')
2577	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2578	\|\| DBGCVAR_ISPOINTER(paArgs[0].enmType));
2579	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2580
2581	/*
2582	* Guest or shadow page directories? Get the paging parameters.
2583	*/
2584	bool fGuest = pCmd->pszCmd[3] != 'h';
2585	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2586	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2587	? pDbgc->fRegCtxGuest
2588	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2589
2590	bool fPAE, fLME, fPSE, fPGE, fNXE;
2591	uint64_t cr3 = fGuest
2592	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2593	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2594	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2595
2596	/*
2597	* Setup default argument if none was specified.
2598	* Fix address / index confusion.
2599	*/
2600	DBGCVAR VarDefault;
2601	if (!cArgs)
2602	{
2603	if (pCmd->pszCmd[3] == 'a')
2604	{
2605	if (fLME \|\| fPAE)
2606	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");
2607	if (fGuest)
2608	DBGCVAR_INIT_GC_PHYS(&VarDefault, cr3);
2609	else
2610	DBGCVAR_INIT_HC_PHYS(&VarDefault, cr3);
2611	}
2612	else
2613	DBGCVAR_INIT_GC_FLAT(&VarDefault, 0);
2614	paArgs = &VarDefault;
2615	cArgs = 1;
2616	}
2617	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
2618	{
2619	/* If it's a number (not an address), it's an index, so convert it to an address. */
2620	Assert(pCmd->pszCmd[3] != 'a');
2621	VarDefault = paArgs[0];
2622	if (fPAE)
2623	return DBGCCmdHlpPrintf(pCmdHlp, "PDE indexing is only implemented for 32-bit paging.\n");
2624	if (VarDefault.u.u64Number >= PAGE_SIZE / cbEntry)
2625	return DBGCCmdHlpPrintf(pCmdHlp, "PDE index is out of range [0..%d].\n", PAGE_SIZE / cbEntry - 1);
2626	VarDefault.u.u64Number <<= X86_PD_SHIFT;
2627	VarDefault.enmType = DBGCVAR_TYPE_GC_FLAT;
2628	paArgs = &VarDefault;
2629	}
2630
2631	/*
2632	* Locate the PDE to start displaying at.
2633	*
2634	* The 'dpda' command takes the address of a PDE, while the others are guest
2635	* virtual address which PDEs should be displayed. So, 'dpda' is rather simple
2636	* while the others require us to do all the tedious walking thru the paging
2637	* hierarchy to find the intended PDE.
2638	*/
2639	unsigned iEntry = ~0U; /* The page directory index. ~0U for 'dpta'. */
2640	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PDE (iEntry != ~0U). */
2641	DBGCVAR VarPDEAddr; /* The address of the current PDE. */
2642	unsigned cEntries; /* The number of entries to display. */
2643	unsigned cEntriesMax; /* The max number of entries to display. */
2644	int rc;
2645	if (pCmd->pszCmd[3] == 'a')
2646	{
2647	VarPDEAddr = paArgs[0];
2648	switch (VarPDEAddr.enmRangeType)
2649	{
2650	case DBGCVAR_RANGE_BYTES: cEntries = VarPDEAddr.u64Range / cbEntry; break;
2651	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPDEAddr.u64Range; break;
2652	default: cEntries = 10; break;
2653	}
2654	cEntriesMax = PAGE_SIZE / cbEntry;
2655	}
2656	else
2657	{
2658	/*
2659	* Determine the range.
2660	*/
2661	switch (paArgs[0].enmRangeType)
2662	{
2663	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2664	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2665	default: cEntries = 10; break;
2666	}
2667
2668	/*
2669	* Normalize the input address, it must be a flat GC address.
2670	*/
2671	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2672	if (RT_FAILURE(rc))
2673	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2674	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2675	{
2676	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2677	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2678	}
2679	if (fPAE)
2680	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_PAE_SHIFT) - 1);
2681	else
2682	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_SHIFT) - 1);
2683
2684	/*
2685	* Do the paging walk until we get to the page directory.
2686	*/
2687	DBGCVAR VarCur;
2688	if (fGuest)
2689	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2690	else
2691	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2692	if (fLME)
2693	{
2694	/* Page Map Level 4 Lookup. */
2695	/* Check if it's a valid address first? */
2696	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2697	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2698	X86PML4E Pml4e;
2699	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2700	if (RT_FAILURE(rc))
2701	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2702	if (!Pml4e.n.u1Present)
2703	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2704
2705	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2706	Assert(fPAE);
2707	}
2708	if (fPAE)
2709	{
2710	/* Page directory pointer table. */
2711	X86PDPE Pdpe;
2712	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2713	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2714	if (RT_FAILURE(rc))
2715	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2716	if (!Pdpe.n.u1Present)
2717	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2718
2719	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2720	VarPDEAddr = VarCur;
2721	VarPDEAddr.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2722	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDEPAE);
2723	}
2724	else
2725	{
2726	/* 32-bit legacy - CR3 == page directory. */
2727	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK;
2728	VarPDEAddr = VarCur;
2729	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDE);
2730	}
2731	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2732	}
2733
2734	/* adjust cEntries */
2735	cEntries = RT_MAX(1, cEntries);
2736	cEntries = RT_MIN(cEntries, cEntriesMax);
2737
2738	/*
2739	* The display loop.
2740	*/
2741	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (index %#x):\n" : "%DV:\n",
2742	&VarPDEAddr, iEntry);
2743	do
2744	{
2745	/*
2746	* Read.
2747	*/
2748	X86PDEPAE Pde;
2749	Pde.u = 0;
2750	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, cbEntry, &VarPDEAddr, NULL);
2751	if (RT_FAILURE(rc))
2752	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarPDEAddr);
2753
2754	/*
2755	* Display.
2756	*/
2757	if (iEntry != ~0U)
2758	{
2759	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2760	iEntry++;
2761	}
2762	if (fPSE && Pde.b.u1Size)
2763	DBGCCmdHlpPrintf(pCmdHlp,
2764	fPAE
2765	? "%016llx big phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2766	: "%08llx big phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2767	Pde.u,
2768	Pde.u & X86_PDE_PAE_PG_MASK,
2769	Pde.b.u1Present ? "p " : "np",
2770	Pde.b.u1Write ? "w" : "r",
2771	Pde.b.u1User ? "u" : "s",
2772	Pde.b.u1Accessed ? "a " : "na",
2773	Pde.b.u1Dirty ? "d " : "nd",
2774	Pde.b.u3Available,
2775	Pde.b.u1Global ? (fPGE ? "g" : "G") : " ",
2776	Pde.b.u1WriteThru ? "pwt" : " ",
2777	Pde.b.u1CacheDisable ? "pcd" : " ",
2778	Pde.b.u1PAT ? "pat" : "",
2779	Pde.b.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2780	else
2781	DBGCCmdHlpPrintf(pCmdHlp,
2782	fPAE
2783	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s"
2784	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s",
2785	Pde.u,
2786	Pde.u & X86_PDE_PAE_PG_MASK,
2787	Pde.n.u1Present ? "p " : "np",
2788	Pde.n.u1Write ? "w" : "r",
2789	Pde.n.u1User ? "u" : "s",
2790	Pde.n.u1Accessed ? "a " : "na",
2791	Pde.u & RT_BIT(6) ? "6 " : " ",
2792	Pde.n.u3Available,
2793	Pde.u & RT_BIT(8) ? "8" : " ",
2794	Pde.n.u1WriteThru ? "pwt" : " ",
2795	Pde.n.u1CacheDisable ? "pcd" : " ",
2796	Pde.u & RT_BIT(7) ? "7" : "",
2797	Pde.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2798	if (Pde.u & UINT64_C(0x7fff000000000000))
2799	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pde.u & UINT64_C(0x7fff000000000000)));
2800	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2801	if (RT_FAILURE(rc))
2802	return rc;
2803
2804	/*
2805	* Advance.
2806	*/
2807	VarPDEAddr.u.u64Number += cbEntry;
2808	if (iEntry != ~0U)
2809	VarGCPtr.u.GCFlat += fPAE ? RT_BIT_32(X86_PD_PAE_SHIFT) : RT_BIT_32(X86_PD_SHIFT);
2810	} while (cEntries-- > 0);
2811
2812	return VINF_SUCCESS;
2813	}
2814
2815
2816	/**
2817	* @callback_method_impl{FNDBGCCMD, The 'dpdb' command.}
2818	*/
2819	static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2820	{
2821	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2822	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2823	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2824	if (RT_FAILURE(rc1))
2825	return rc1;
2826	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
2827	return rc2;
2828	}
2829
2830
2831	/**
2832	* @callback_method_impl{FNDBGCCMD, The 'dph*' commands and main part of 'm'.}
2833	*/
2834	static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2835	{
2836	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2837	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2838
2839	/*
2840	* Figure the context and base flags.
2841	*/
2842	uint32_t fFlags = DBGFPGDMP_FLAGS_PAGE_INFO \| DBGFPGDMP_FLAGS_PRINT_CR3;
2843	if (pCmd->pszCmd[0] == 'm')
2844	fFlags \|= DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW;
2845	else if (pCmd->pszCmd[3] == '\0')
2846	fFlags \|= pDbgc->fRegCtxGuest ? DBGFPGDMP_FLAGS_GUEST : DBGFPGDMP_FLAGS_SHADOW;
2847	else if (pCmd->pszCmd[3] == 'g')
2848	fFlags \|= DBGFPGDMP_FLAGS_GUEST;
2849	else if (pCmd->pszCmd[3] == 'h')
2850	fFlags \|= DBGFPGDMP_FLAGS_SHADOW;
2851	else
2852	AssertFailed();
2853
2854	if (pDbgc->cPagingHierarchyDumps == 0)
2855	fFlags \|= DBGFPGDMP_FLAGS_HEADER;
2856	pDbgc->cPagingHierarchyDumps = (pDbgc->cPagingHierarchyDumps + 1) % 42;
2857
2858	/*
2859	* Get the range.
2860	*/
2861	PCDBGCVAR pRange = cArgs > 0 ? &paArgs[0] : pDbgc->pLastPos;
2862	RTGCPTR GCPtrFirst = NIL_RTGCPTR;
2863	int rc = DBGCCmdHlpVarToFlatAddr(pCmdHlp, pRange, &GCPtrFirst);
2864	if (RT_FAILURE(rc))
2865	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to convert %DV to a flat address: %Rrc", pRange, rc);
2866
2867	uint64_t cbRange;
2868	rc = DBGCCmdHlpVarGetRange(pCmdHlp, pRange, PAGE_SIZE, PAGE_SIZE * 8, &cbRange);
2869	if (RT_FAILURE(rc))
2870	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to obtain the range of %DV: %Rrc", pRange, rc);
2871
2872	RTGCPTR GCPtrLast = RTGCPTR_MAX - GCPtrFirst;
2873	if (cbRange >= GCPtrLast)
2874	GCPtrLast = RTGCPTR_MAX;
2875	else if (!cbRange)
2876	GCPtrLast = GCPtrFirst;
2877	else
2878	GCPtrLast = GCPtrFirst + cbRange - 1;
2879
2880	/*
2881	* Do we have a CR3?
2882	*/
2883	uint64_t cr3 = 0;
2884	if (cArgs > 1)
2885	{
2886	if ((fFlags & (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW)) == (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW))
2887	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No CR3 or mode arguments when dumping both context, please.");
2888	if (paArgs[1].enmType != DBGCVAR_TYPE_NUMBER)
2889	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The CR3 argument is not a number: %DV", &paArgs[1]);
2890	cr3 = paArgs[1].u.u64Number;
2891	}
2892	else
2893	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_CR3;
2894
2895	/*
2896	* Do we have a mode?
2897	*/
2898	if (cArgs > 2)
2899	{
2900	if (paArgs[2].enmType != DBGCVAR_TYPE_STRING)
2901	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The mode argument is not a string: %DV", &paArgs[2]);
2902	static const struct MODETOFLAGS
2903	{
2904	const char *pszName;
2905	uint32_t fFlags;
2906	} s_aModeToFlags[] =
2907	{
2908	{ "ept", DBGFPGDMP_FLAGS_EPT },
2909	{ "legacy", 0 },
2910	{ "legacy-np", DBGFPGDMP_FLAGS_NP },
2911	{ "pse", DBGFPGDMP_FLAGS_PSE },
2912	{ "pse-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_NP },
2913	{ "pae", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE },
2914	{ "pae-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NP },
2915	{ "pae-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE },
2916	{ "pae-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP },
2917	{ "long", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME },
2918	{ "long-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NP },
2919	{ "long-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE },
2920	{ "long-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP }
2921	};
2922	int i = RT_ELEMENTS(s_aModeToFlags);
2923	while (i-- > 0)
2924	if (!strcmp(s_aModeToFlags[i].pszName, paArgs[2].u.pszString))
2925	{
2926	fFlags \|= s_aModeToFlags[i].fFlags;
2927	break;
2928	}
2929	if (i < 0)
2930	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown mode: \"%s\"", paArgs[2].u.pszString);
2931	}
2932	else
2933	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_MODE;
2934
2935	/*
2936	* Call the worker.
2937	*/
2938	rc = DBGFR3PagingDumpEx(pUVM, pDbgc->idCpu, fFlags, cr3, GCPtrFirst, GCPtrLast, 99 /cMaxDepth/,
2939	DBGCCmdHlpGetDbgfOutputHlp(pCmdHlp));
2940	if (RT_FAILURE(rc))
2941	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3PagingDumpEx: %Rrc\n", rc);
2942	return VINF_SUCCESS;
2943	}
2944
2945
2946
2947	/**
2948	* @callback_method_impl{FNDBGCCMD, The 'dpg*' commands.}
2949	*/
2950	static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2951	{
2952	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2953
2954	/*
2955	* Validate input.
2956	*/
2957	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1);
2958	if (pCmd->pszCmd[3] == 'a')
2959	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2960	else
2961	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2962	\|\| DBGCVAR_ISPOINTER(paArgs[0].enmType));
2963	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2964
2965	/*
2966	* Guest or shadow page tables? Get the paging parameters.
2967	*/
2968	bool fGuest = pCmd->pszCmd[3] != 'h';
2969	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2970	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2971	? pDbgc->fRegCtxGuest
2972	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2973
2974	bool fPAE, fLME, fPSE, fPGE, fNXE;
2975	uint64_t cr3 = fGuest
2976	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2977	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2978	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2979
2980	/*
2981	* Locate the PTE to start displaying at.
2982	*
2983	* The 'dpta' command takes the address of a PTE, while the others are guest
2984	* virtual address which PTEs should be displayed. So, 'pdta' is rather simple
2985	* while the others require us to do all the tedious walking thru the paging
2986	* hierarchy to find the intended PTE.
2987	*/
2988	unsigned iEntry = ~0U; /* The page table index. ~0U for 'dpta'. */
2989	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PTE (iEntry != ~0U). */
2990	DBGCVAR VarPTEAddr; /* The address of the current PTE. */
2991	unsigned cEntries; /* The number of entries to display. */
2992	unsigned cEntriesMax; /* The max number of entries to display. */
2993	int rc;
2994	if (pCmd->pszCmd[3] == 'a')
2995	{
2996	VarPTEAddr = paArgs[0];
2997	switch (VarPTEAddr.enmRangeType)
2998	{
2999	case DBGCVAR_RANGE_BYTES: cEntries = VarPTEAddr.u64Range / cbEntry; break;
3000	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPTEAddr.u64Range; break;
3001	default: cEntries = 10; break;
3002	}
3003	cEntriesMax = PAGE_SIZE / cbEntry;
3004	}
3005	else
3006	{
3007	/*
3008	* Determine the range.
3009	*/
3010	switch (paArgs[0].enmRangeType)
3011	{
3012	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
3013	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
3014	default: cEntries = 10; break;
3015	}
3016
3017	/*
3018	* Normalize the input address, it must be a flat GC address.
3019	*/
3020	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
3021	if (RT_FAILURE(rc))
3022	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3023	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
3024	{
3025	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
3026	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
3027	}
3028	VarGCPtr.u.GCFlat &= ~(RTGCPTR)PAGE_OFFSET_MASK;
3029
3030	/*
3031	* Do the paging walk until we get to the page table.
3032	*/
3033	DBGCVAR VarCur;
3034	if (fGuest)
3035	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
3036	else
3037	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
3038	if (fLME)
3039	{
3040	/* Page Map Level 4 Lookup. */
3041	/* Check if it's a valid address first? */
3042	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
3043	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
3044	X86PML4E Pml4e;
3045	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
3046	if (RT_FAILURE(rc))
3047	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
3048	if (!Pml4e.n.u1Present)
3049	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
3050
3051	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
3052	Assert(fPAE);
3053	}
3054	if (fPAE)
3055	{
3056	/* Page directory pointer table. */
3057	X86PDPE Pdpe;
3058	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
3059	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
3060	if (RT_FAILURE(rc))
3061	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
3062	if (!Pdpe.n.u1Present)
3063	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
3064
3065	VarCur.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
3066
3067	/* Page directory (PAE). */
3068	X86PDEPAE Pde;
3069	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK) * sizeof(Pde);
3070	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
3071	if (RT_FAILURE(rc))
3072	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3073	if (!Pde.n.u1Present)
3074	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3075	if (fPSE && Pde.n.u1Size)
3076	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3077
3078	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
3079	VarPTEAddr = VarCur;
3080	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PAE_PG_MASK;
3081	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTEPAE);
3082	}
3083	else
3084	{
3085	/* Page directory (legacy). */
3086	X86PDE Pde;
3087	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK) * sizeof(Pde);
3088	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
3089	if (RT_FAILURE(rc))
3090	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3091	if (!Pde.n.u1Present)
3092	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3093	if (fPSE && Pde.n.u1Size)
3094	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3095
3096	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_SHIFT) & X86_PT_MASK;
3097	VarPTEAddr = VarCur;
3098	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PG_MASK;
3099	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTE);
3100	}
3101	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
3102	}
3103
3104	/* adjust cEntries */
3105	cEntries = RT_MAX(1, cEntries);
3106	cEntries = RT_MIN(cEntries, cEntriesMax);
3107
3108	/*
3109	* The display loop.
3110	*/
3111	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (base %DV / index %#x):\n" : "%DV:\n",
3112	&VarPTEAddr, &VarGCPtr, iEntry);
3113	do
3114	{
3115	/*
3116	* Read.
3117	*/
3118	X86PTEPAE Pte;
3119	Pte.u = 0;
3120	rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pte, cbEntry, &VarPTEAddr, NULL);
3121	if (RT_FAILURE(rc))
3122	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PTE memory at %DV.\n", &VarPTEAddr);
3123
3124	/*
3125	* Display.
3126	*/
3127	if (iEntry != ~0U)
3128	{
3129	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
3130	iEntry++;
3131	}
3132	DBGCCmdHlpPrintf(pCmdHlp,
3133	fPAE
3134	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
3135	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
3136	Pte.u,
3137	Pte.u & X86_PTE_PAE_PG_MASK,
3138	Pte.n.u1Present ? "p " : "np",
3139	Pte.n.u1Write ? "w" : "r",
3140	Pte.n.u1User ? "u" : "s",
3141	Pte.n.u1Accessed ? "a " : "na",
3142	Pte.n.u1Dirty ? "d " : "nd",
3143	Pte.n.u3Available,
3144	Pte.n.u1Global ? (fPGE ? "g" : "G") : " ",
3145	Pte.n.u1WriteThru ? "pwt" : " ",
3146	Pte.n.u1CacheDisable ? "pcd" : " ",
3147	Pte.n.u1PAT ? "pat" : " ",
3148	Pte.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " "
3149	);
3150	if (Pte.u & UINT64_C(0x7fff000000000000))
3151	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pte.u & UINT64_C(0x7fff000000000000)));
3152	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3153	if (RT_FAILURE(rc))
3154	return rc;
3155
3156	/*
3157	* Advance.
3158	*/
3159	VarPTEAddr.u.u64Number += cbEntry;
3160	if (iEntry != ~0U)
3161	VarGCPtr.u.GCFlat += PAGE_SIZE;
3162	} while (cEntries-- > 0);
3163
3164	return VINF_SUCCESS;
3165	}
3166
3167
3168	/**
3169	* @callback_method_impl{FNDBGCCMD, The 'dptb' command.}
3170	*/
3171	static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3172	{
3173	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3174	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
3175	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
3176	if (RT_FAILURE(rc1))
3177	return rc1;
3178	NOREF(pCmd); NOREF(cArgs);
3179	return rc2;
3180	}
3181
3182
3183	/**
3184	* @callback_method_impl{FNDBGCCMD, The 'dt' command.}
3185	*/
3186	static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3187	{
3188	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3189	int rc;
3190
3191	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3192	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
3193	if (cArgs == 1)
3194	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType != DBGCVAR_TYPE_STRING
3195	&& paArgs[0].enmType != DBGCVAR_TYPE_SYMBOL);
3196
3197	/*
3198	* Check if the command indicates the type.
3199	*/
3200	enum { kTss16, kTss32, kTss64, kTssToBeDetermined } enmTssType = kTssToBeDetermined;
3201	if (!strcmp(pCmd->pszCmd, "dt16"))
3202	enmTssType = kTss16;
3203	else if (!strcmp(pCmd->pszCmd, "dt32"))
3204	enmTssType = kTss32;
3205	else if (!strcmp(pCmd->pszCmd, "dt64"))
3206	enmTssType = kTss64;
3207
3208	/*
3209	* We can get a TSS selector (number), a far pointer using a TSS selector, or some kind of TSS pointer.
3210	*/
3211	uint32_t SelTss = UINT32_MAX;
3212	DBGCVAR VarTssAddr;
3213	if (cArgs == 0)
3214	{
3215	/** @todo consider querying the hidden bits instead (missing API). */
3216	uint16_t SelTR;
3217	rc = DBGFR3RegCpuQueryU16(pUVM, pDbgc->idCpu, DBGFREG_TR, &SelTR);
3218	if (RT_FAILURE(rc))
3219	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to query TR, rc=%Rrc\n", rc);
3220	DBGCVAR_INIT_GC_FAR(&VarTssAddr, SelTR, 0);
3221	SelTss = SelTR;
3222	}
3223	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
3224	{
3225	if (paArgs[0].u.u64Number < 0xffff)
3226	DBGCVAR_INIT_GC_FAR(&VarTssAddr, (RTSEL)paArgs[0].u.u64Number, 0);
3227	else
3228	{
3229	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_ELEMENTS)
3230	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Element count doesn't combine with a TSS address.\n");
3231	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, paArgs[0].u.u64Number);
3232	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_BYTES)
3233	{
3234	VarTssAddr.enmRangeType = paArgs[0].enmRangeType;
3235	VarTssAddr.u64Range = paArgs[0].u64Range;
3236	}
3237	}
3238	}
3239	else
3240	VarTssAddr = paArgs[0];
3241
3242	/*
3243	* Deal with TSS:ign by means of the GDT.
3244	*/
3245	if (VarTssAddr.enmType == DBGCVAR_TYPE_GC_FAR)
3246	{
3247	SelTss = VarTssAddr.u.GCFar.sel;
3248	DBGFSELINFO SelInfo;
3249	rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, VarTssAddr.u.GCFar.sel, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
3250	if (RT_FAILURE(rc))
3251	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3SelQueryInfo(,%u,%d,,) -> %Rrc.\n",
3252	pDbgc->idCpu, VarTssAddr.u.GCFar.sel, rc);
3253
3254	if (SelInfo.u.Raw.Gen.u1DescType)
3255	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (!sys)\n", VarTssAddr.u.GCFar.sel);
3256
3257	switch (SelInfo.u.Raw.Gen.u4Type)
3258	{
3259	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
3260	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
3261	if (enmTssType == kTssToBeDetermined)
3262	enmTssType = kTss16;
3263	break;
3264
3265	case X86_SEL_TYPE_SYS_386_TSS_BUSY: /* AMD64 too */
3266	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
3267	if (enmTssType == kTssToBeDetermined)
3268	enmTssType = SelInfo.fFlags & DBGFSELINFO_FLAGS_LONG_MODE ? kTss64 : kTss32;
3269	break;
3270
3271	default:
3272	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (type=%x)\n",
3273	VarTssAddr.u.GCFar.sel, SelInfo.u.Raw.Gen.u4Type);
3274	}
3275
3276	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, SelInfo.GCPtrBase);
3277	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, RT_MAX(SelInfo.cbLimit + 1, SelInfo.cbLimit));
3278	}
3279
3280	/*
3281	* Determine the TSS type if none is currently given.
3282	*/
3283	if (enmTssType == kTssToBeDetermined)
3284	{
3285	if ( VarTssAddr.u64Range > 0
3286	&& VarTssAddr.u64Range < sizeof(X86TSS32) - 4)
3287	enmTssType = kTss16;
3288	else
3289	{
3290	uint64_t uEfer;
3291	rc = DBGFR3RegCpuQueryU64(pUVM, pDbgc->idCpu, DBGFREG_MSR_K6_EFER, &uEfer);
3292	if ( RT_FAILURE(rc)
3293	\|\| !(uEfer & MSR_K6_EFER_LMA) )
3294	enmTssType = kTss32;
3295	else
3296	enmTssType = kTss64;
3297	}
3298	}
3299
3300	/*
3301	* Figure the min/max sizes.
3302	* ASSUMES max TSS size is 64 KB.
3303	*/
3304	uint32_t cbTssMin;
3305	uint32_t cbTssMax;
3306	switch (enmTssType)
3307	{
3308	case kTss16:
3309	cbTssMin = cbTssMax = sizeof(X86TSS16);
3310	break;
3311	case kTss32:
3312	cbTssMin = RT_OFFSETOF(X86TSS32, IntRedirBitmap);
3313	cbTssMax = _64K;
3314	break;
3315	case kTss64:
3316	cbTssMin = RT_OFFSETOF(X86TSS64, IntRedirBitmap);
3317	cbTssMax = _64K;
3318	break;
3319	default:
3320	AssertFailedReturn(VERR_INTERNAL_ERROR);
3321	}
3322	uint32_t cbTss = VarTssAddr.enmRangeType == DBGCVAR_RANGE_BYTES ? (uint32_t)VarTssAddr.u64Range : 0;
3323	if (cbTss == 0)
3324	cbTss = cbTssMin;
3325	else if (cbTss < cbTssMin)
3326	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Minimum TSS size is %u bytes, you specified %llu (%llx) bytes.\n",
3327	cbTssMin, VarTssAddr.u64Range, VarTssAddr.u64Range);
3328	else if (cbTss > cbTssMax)
3329	cbTss = cbTssMax;
3330	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, cbTss);
3331
3332	/*
3333	* Read the TSS into a temporary buffer.
3334	*/
3335	uint8_t abBuf[_64K];
3336	size_t cbTssRead;
3337	rc = DBGCCmdHlpMemRead(pCmdHlp, abBuf, cbTss, &VarTssAddr, &cbTssRead);
3338	if (RT_FAILURE(rc))
3339	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read TSS at %Dv: %Rrc\n", &VarTssAddr, rc);
3340	if (cbTssRead < cbTssMin)
3341	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read essential parts of the TSS (read %zu, min %zu).\n",
3342	cbTssRead, cbTssMin);
3343	if (cbTssRead < cbTss)
3344	memset(&abBuf[cbTssRead], 0xff, cbTss - cbTssRead);
3345
3346
3347	/*
3348	* Format the TSS.
3349	*/
3350	uint16_t offIoBitmap;
3351	switch (enmTssType)
3352	{
3353	case kTss16:
3354	{
3355	PCX86TSS16 pTss = (PCX86TSS16)&abBuf[0];
3356	if (SelTss != UINT32_MAX)
3357	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS16 at %Dv\n", SelTss, &VarTssAddr);
3358	else
3359	DBGCCmdHlpPrintf(pCmdHlp, "TSS16 at %Dv\n", &VarTssAddr);
3360	DBGCCmdHlpPrintf(pCmdHlp,
3361	"ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x\n"
3362	"ip=%04x sp=%04x bp=%04x\n"
3363	"cs=%04x ss=%04x ds=%04x es=%04x flags=%04x\n"
3364	"ss:sp0=%04x:%04x ss:sp1=%04x:%04x ss:sp2=%04x:%04x\n"
3365	"prev=%04x ldtr=%04x\n"
3366	,
3367	pTss->ax, pTss->bx, pTss->cx, pTss->dx, pTss->si, pTss->di,
3368	pTss->ip, pTss->sp, pTss->bp,
3369	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->flags,
3370	pTss->ss0, pTss->sp0, pTss->ss1, pTss->sp1, pTss->ss2, pTss->sp2,
3371	pTss->selPrev, pTss->selLdt);
3372	if (pTss->cs != 0)
3373	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%04x L 0", pTss->cs, pTss->ip);
3374	offIoBitmap = 0;
3375	break;
3376	}
3377
3378	case kTss32:
3379	{
3380	PCX86TSS32 pTss = (PCX86TSS32)&abBuf[0];
3381	if (SelTss != UINT32_MAX)
3382	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS32 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3383	else
3384	DBGCCmdHlpPrintf(pCmdHlp, "TSS32 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3385	DBGCCmdHlpPrintf(pCmdHlp,
3386	"eax=%08x bx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
3387	"eip=%08x esp=%08x ebp=%08x\n"
3388	"cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x eflags=%08x\n"
3389	"ss:esp0=%04x:%08x ss:esp1=%04x:%08x ss:esp2=%04x:%08x\n"
3390	"prev=%04x ldtr=%04x cr3=%08x debug=%u iomap=%04x\n"
3391	,
3392	pTss->eax, pTss->ebx, pTss->ecx, pTss->edx, pTss->esi, pTss->edi,
3393	pTss->eip, pTss->esp, pTss->ebp,
3394	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->fs, pTss->gs, pTss->eflags,
3395	pTss->ss0, pTss->esp0, pTss->ss1, pTss->esp1, pTss->ss2, pTss->esp2,
3396	pTss->selPrev, pTss->selLdt, pTss->cr3, pTss->fDebugTrap, pTss->offIoBitmap);
3397	if (pTss->cs != 0)
3398	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%08x L 0", pTss->cs, pTss->eip);
3399	offIoBitmap = pTss->offIoBitmap;
3400	break;
3401	}
3402
3403	case kTss64:
3404	{
3405	PCX86TSS64 pTss = (PCX86TSS64)&abBuf[0];
3406	if (SelTss != UINT32_MAX)
3407	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS64 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3408	else
3409	DBGCCmdHlpPrintf(pCmdHlp, "TSS64 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3410	DBGCCmdHlpPrintf(pCmdHlp,
3411	"rsp0=%016RX16 rsp1=%016RX16 rsp2=%016RX16\n"
3412	"ist1=%016RX16 ist2=%016RX16\n"
3413	"ist3=%016RX16 ist4=%016RX16\n"
3414	"ist5=%016RX16 ist6=%016RX16\n"
3415	"ist7=%016RX16 iomap=%04x\n"
3416	,
3417	pTss->rsp0, pTss->rsp1, pTss->rsp2,
3418	pTss->ist1, pTss->ist2,
3419	pTss->ist3, pTss->ist4,
3420	pTss->ist5, pTss->ist6,
3421	pTss->ist7, pTss->offIoBitmap);
3422	offIoBitmap = pTss->offIoBitmap;
3423	break;
3424	}
3425
3426	default:
3427	AssertFailedReturn(VERR_INTERNAL_ERROR);
3428	}
3429
3430	/*
3431	* Dump the interrupt redirection bitmap.
3432	*/
3433	if (enmTssType != kTss16)
3434	{
3435	if ( offIoBitmap > cbTssMin
3436	&& offIoBitmap < cbTss) /** @todo check exactly what the edge cases are here. */
3437	{
3438	if (offIoBitmap - cbTssMin >= 32)
3439	{
3440	DBGCCmdHlpPrintf(pCmdHlp, "Interrupt redirection:\n");
3441	uint8_t const *pbIntRedirBitmap = &abBuf[offIoBitmap - 32];
3442	uint32_t iStart = 0;
3443	bool fPrev = ASMBitTest(pbIntRedirBitmap, 0); /* LE/BE issue */
3444	for (uint32_t i = 0; i < 256; i++)
3445	{
3446	bool fThis = ASMBitTest(pbIntRedirBitmap, i);
3447	if (fThis != fPrev)
3448	{
3449	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, i - 1, fPrev ? "Protected mode" : "Redirected");
3450	fPrev = fThis;
3451	iStart = i;
3452	}
3453	}
3454	if (iStart != 255)
3455	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, 255, fPrev ? "Protected mode" : "Redirected");
3456	}
3457	else
3458	DBGCCmdHlpPrintf(pCmdHlp, "Invalid interrupt redirection bitmap size: %u (%#x), expected 32 bytes.\n",
3459	offIoBitmap - cbTssMin, offIoBitmap - cbTssMin);
3460	}
3461	else if (offIoBitmap > 0)
3462	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3463	else
3464	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap\n");
3465	}
3466
3467	/*
3468	* Dump the I/O permission bitmap if present. The IOPM cannot start below offset 0x64
3469	* (that applies to both 32-bit and 64-bit TSSs since their size is the same).
3470	*/
3471	if (enmTssType != kTss16)
3472	{
3473	if (offIoBitmap < cbTss && offIoBitmap >= 0x64)
3474	{
3475	uint32_t cPorts = RT_MIN((cbTss - offIoBitmap) * 8, _64K);
3476	DBGCVAR VarAddr;
3477	DBGCCmdHlpEval(pCmdHlp, &VarAddr, "%DV + %#x", &VarTssAddr, offIoBitmap);
3478	DBGCCmdHlpPrintf(pCmdHlp, "I/O bitmap at %DV - %#x ports:\n", &VarAddr, cPorts);
3479
3480	uint8_t const *pbIoBitmap = &abBuf[offIoBitmap];
3481	uint32_t iStart = 0;
3482	bool fPrev = ASMBitTest(pbIoBitmap, 0);
3483	uint32_t cLine = 0;
3484	for (uint32_t i = 1; i < cPorts; i++)
3485	{
3486	bool fThis = ASMBitTest(pbIoBitmap, i);
3487	if (fThis != fPrev)
3488	{
3489	cLine++;
3490	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s%s", iStart, i-1,
3491	fPrev ? "GP" : "OK", (cLine % 6) == 0 ? "\n" : " ");
3492	fPrev = fThis;
3493	iStart = i;
3494	}
3495	}
3496	if (iStart != _64K-1)
3497	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s\n", iStart, _64K-1, fPrev ? "GP" : "OK");
3498	}
3499	else if (offIoBitmap > 0)
3500	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3501	else
3502	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap\n");
3503	}
3504
3505	return VINF_SUCCESS;
3506	}
3507
3508
3509	/**
3510	* @callback_method_impl{FNDBGCCMD, The 'm' command.}
3511	*/
3512	static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3513	{
3514	DBGCCmdHlpPrintf(pCmdHlp, "Address: %DV\n", &paArgs[0]);
3515	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3516	return dbgcCmdDumpPageHierarchy(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
3517	}
3518
3519
3520	/**
3521	* Converts one or more variables into a byte buffer for a
3522	* given unit size.
3523	*
3524	* @returns VBox status codes:
3525	* @retval VERR_TOO_MUCH_DATA if the buffer is too small, bitched.
3526	* @retval VERR_INTERNAL_ERROR on bad variable type, bitched.
3527	* @retval VINF_SUCCESS on success.
3528	*
3529	* @param pvBuf The buffer to convert into.
3530	* @param pcbBuf The buffer size on input. The size of the result on output.
3531	* @param cbUnit The unit size to apply when converting.
3532	* The high bit is used to indicate unicode string.
3533	* @param paVars The array of variables to convert.
3534	* @param cVars The number of variables.
3535	*/
3536	int dbgcVarsToBytes(PDBGCCMDHLP pCmdHlp, void pvBuf, uint32_t pcbBuf, size_t cbUnit, PCDBGCVAR paVars, unsigned cVars)
3537	{
3538	union
3539	{
3540	uint8_t *pu8;
3541	uint16_t *pu16;
3542	uint32_t *pu32;
3543	uint64_t *pu64;
3544	} u, uEnd;
3545	u.pu8 = (uint8_t *)pvBuf;
3546	uEnd.pu8 = u.pu8 + *pcbBuf;
3547
3548	unsigned i;
3549	for (i = 0; i < cVars && u.pu8 < uEnd.pu8; i++)
3550	{
3551	switch (paVars[i].enmType)
3552	{
3553	case DBGCVAR_TYPE_GC_FAR:
3554	case DBGCVAR_TYPE_GC_FLAT:
3555	case DBGCVAR_TYPE_GC_PHYS:
3556	case DBGCVAR_TYPE_HC_FLAT:
3557	case DBGCVAR_TYPE_HC_PHYS:
3558	case DBGCVAR_TYPE_NUMBER:
3559	{
3560	uint64_t u64 = paVars[i].u.u64Number;
3561	switch (cbUnit & 0x1f)
3562	{
3563	case 1:
3564	do
3565	{
3566	*u.pu8++ = u64;
3567	u64 >>= 8;
3568	} while (u64);
3569	break;
3570	case 2:
3571	do
3572	{
3573	*u.pu16++ = u64;
3574	u64 >>= 16;
3575	} while (u64);
3576	break;
3577	case 4:
3578	*u.pu32++ = u64;
3579	u64 >>= 32;
3580	if (u64)
3581	*u.pu32++ = u64;
3582	break;
3583	case 8:
3584	*u.pu64++ = u64;
3585	break;
3586	}
3587	break;
3588	}
3589
3590	case DBGCVAR_TYPE_STRING:
3591	case DBGCVAR_TYPE_SYMBOL:
3592	{
3593	const char *psz = paVars[i].u.pszString;
3594	size_t cbString = strlen(psz);
3595	if (cbUnit & RT_BIT_32(31))
3596	{
3597	/* Explode char to unit. */
3598	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8) * (cbUnit & 0x1f))
3599	{
3600	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3601	return VERR_TOO_MUCH_DATA;
3602	}
3603	while (*psz)
3604	{
3605	switch (cbUnit & 0x1f)
3606	{
3607	case 1: u.pu8++ = psz; break;
3608	case 2: u.pu16++ = psz; break;
3609	case 4: u.pu32++ = psz; break;
3610	case 8: u.pu64++ = psz; break;
3611	}
3612	psz++;
3613	}
3614	}
3615	else
3616	{
3617	/* Raw copy with zero padding if the size isn't aligned. */
3618	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8))
3619	{
3620	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3621	return VERR_TOO_MUCH_DATA;
3622	}
3623
3624	size_t cbCopy = cbString & ~(cbUnit - 1);
3625	memcpy(u.pu8, psz, cbCopy);
3626	u.pu8 += cbCopy;
3627	psz += cbCopy;
3628
3629	size_t cbReminder = cbString & (cbUnit - 1);
3630	if (cbReminder)
3631	{
3632	memcpy(u.pu8, psz, cbString & (cbUnit - 1));
3633	memset(u.pu8 + cbReminder, 0, cbUnit - cbReminder);
3634	u.pu8 += cbUnit;
3635	}
3636	}
3637	break;
3638	}
3639
3640	default:
3641	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3642	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INTERNAL_ERROR,
3643	"i=%d enmType=%d\n", i, paVars[i].enmType);
3644	return VERR_INTERNAL_ERROR;
3645	}
3646	}
3647	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3648	if (i != cVars)
3649	{
3650	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3651	return VERR_TOO_MUCH_DATA;
3652	}
3653	return VINF_SUCCESS;
3654	}
3655
3656
3657	/**
3658	* @callback_method_impl{FNDBGCCMD, The 'eb'\, 'ew'\, 'ed' and 'eq' commands.}
3659	*/
3660	static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3661	{
3662	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3663	unsigned iArg;
3664
3665	/*
3666	* Validate input.
3667	*/
3668	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2);
3669	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
3670	for (iArg = 1; iArg < cArgs; iArg++)
3671	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER);
3672	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3673
3674	/*
3675	* Figure out the element size.
3676	*/
3677	unsigned cbElement;
3678	switch (pCmd->pszCmd[1])
3679	{
3680	default:
3681	case 'b': cbElement = 1; break;
3682	case 'w': cbElement = 2; break;
3683	case 'd': cbElement = 4; break;
3684	case 'q': cbElement = 8; break;
3685	}
3686
3687	/*
3688	* Do setting.
3689	*/
3690	DBGCVAR Addr = paArgs[0];
3691	for (iArg = 1;;)
3692	{
3693	size_t cbWritten;
3694	int rc = pCmdHlp->pfnMemWrite(pCmdHlp, &paArgs[iArg].u, cbElement, &Addr, &cbWritten);
3695	if (RT_FAILURE(rc))
3696	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Writing memory at %DV.\n", &Addr);
3697	if (cbWritten != cbElement)
3698	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Only wrote %u out of %u bytes!\n", cbWritten, cbElement);
3699
3700	/* advance. */
3701	iArg++;
3702	if (iArg >= cArgs)
3703	break;
3704	rc = DBGCCmdHlpEval(pCmdHlp, &Addr, "%Dv + %#x", &Addr, cbElement);
3705	if (RT_FAILURE(rc))
3706	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3707	}
3708
3709	return VINF_SUCCESS;
3710	}
3711
3712
3713	/**
3714	* Executes the search.
3715	*
3716	* @returns VBox status code.
3717	* @param pCmdHlp The command helpers.
3718	* @param pUVM The user mode VM handle.
3719	* @param pAddress The address to start searching from. (undefined on output)
3720	* @param cbRange The address range to search. Must not wrap.
3721	* @param pabBytes The byte pattern to search for.
3722	* @param cbBytes The size of the pattern.
3723	* @param cbUnit The search unit.
3724	* @param cMaxHits The max number of hits.
3725	* @param pResult Where to store the result if it's a function invocation.
3726	*/
3727	static int dbgcCmdWorkerSearchMemDoIt(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGFADDRESS pAddress, RTGCUINTPTR cbRange,
3728	const uint8_t *pabBytes, uint32_t cbBytes,
3729	uint32_t cbUnit, uint64_t cMaxHits, PDBGCVAR pResult)
3730	{
3731	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3732
3733	/*
3734	* Do the search.
3735	*/
3736	uint64_t cHits = 0;
3737	for (;;)
3738	{
3739	/* search */
3740	DBGFADDRESS HitAddress;
3741	int rc = DBGFR3MemScan(pUVM, pDbgc->idCpu, pAddress, cbRange, 1, pabBytes, cbBytes, &HitAddress);
3742	if (RT_FAILURE(rc))
3743	{
3744	if (rc != VERR_DBGF_MEM_NOT_FOUND)
3745	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3MemScan\n");
3746
3747	/* update the current address so we can save it (later). */
3748	pAddress->off += cbRange;
3749	pAddress->FlatPtr += cbRange;
3750	cbRange = 0;
3751	break;
3752	}
3753
3754	/* report result */
3755	DBGCVAR VarCur;
3756	rc = DBGCCmdHlpVarFromDbgfAddr(pCmdHlp, &HitAddress, &VarCur);
3757	if (RT_FAILURE(rc))
3758	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGCCmdHlpVarFromDbgfAddr\n");
3759	if (!pResult)
3760	pCmdHlp->pfnExec(pCmdHlp, "db %DV LB 10", &VarCur);
3761	else
3762	DBGCVAR_ASSIGN(pResult, &VarCur);
3763
3764	/* advance */
3765	cbRange -= HitAddress.FlatPtr - pAddress->FlatPtr;
3766	*pAddress = HitAddress;
3767	pAddress->FlatPtr += cbBytes;
3768	pAddress->off += cbBytes;
3769	if (cbRange <= cbBytes)
3770	{
3771	cbRange = 0;
3772	break;
3773	}
3774	cbRange -= cbBytes;
3775
3776	if (++cHits >= cMaxHits)
3777	{
3778	/// @todo save the search.
3779	break;
3780	}
3781	}
3782
3783	/*
3784	* Save the search so we can resume it...
3785	*/
3786	if (pDbgc->abSearch != pabBytes)
3787	{
3788	memcpy(pDbgc->abSearch, pabBytes, cbBytes);
3789	pDbgc->cbSearch = cbBytes;
3790	pDbgc->cbSearchUnit = cbUnit;
3791	}
3792	pDbgc->cMaxSearchHits = cMaxHits;
3793	pDbgc->SearchAddr = *pAddress;
3794	pDbgc->cbSearchRange = cbRange;
3795
3796	return cHits ? VINF_SUCCESS : VERR_DBGC_COMMAND_FAILED;
3797	}
3798
3799
3800	/**
3801	* Resumes the previous search.
3802	*
3803	* @returns VBox status code.
3804	* @param pCmdHlp Pointer to the command helper functions.
3805	* @param pUVM The user mode VM handle.
3806	* @param pResult Where to store the result of a function invocation.
3807	*/
3808	static int dbgcCmdWorkerSearchMemResume(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGCVAR pResult)
3809	{
3810	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3811
3812	/*
3813	* Make sure there is a previous command.
3814	*/
3815	if (!pDbgc->cbSearch)
3816	{
3817	DBGCCmdHlpPrintf(pCmdHlp, "Error: No previous search\n");
3818	return VERR_DBGC_COMMAND_FAILED;
3819	}
3820
3821	/*
3822	* Make range and address adjustments.
3823	*/
3824	DBGFADDRESS Address = pDbgc->SearchAddr;
3825	if (Address.FlatPtr == ~(RTGCUINTPTR)0)
3826	{
3827	Address.FlatPtr -= Address.off;
3828	Address.off = 0;
3829	}
3830
3831	RTGCUINTPTR cbRange = pDbgc->cbSearchRange;
3832	if (!cbRange)
3833	cbRange = ~(RTGCUINTPTR)0;
3834	if (Address.FlatPtr + cbRange < pDbgc->SearchAddr.FlatPtr)
3835	cbRange = ~(RTGCUINTPTR)0 - pDbgc->SearchAddr.FlatPtr + !!pDbgc->SearchAddr.FlatPtr;
3836
3837	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, pDbgc->abSearch, pDbgc->cbSearch,
3838	pDbgc->cbSearchUnit, pDbgc->cMaxSearchHits, pResult);
3839	}
3840
3841
3842	/**
3843	* Search memory, worker for the 's' and 's?' functions.
3844	*
3845	* @returns VBox status code.
3846	* @param pCmdHlp Pointer to the command helper functions.
3847	* @param pUVM The user mode VM handle.
3848	* @param pAddress Where to start searching. If no range, search till end of address space.
3849	* @param cMaxHits The maximum number of hits.
3850	* @param chType The search type.
3851	* @param paPatArgs The pattern variable array.
3852	* @param cPatArgs Number of pattern variables.
3853	* @param pResult Where to store the result of a function invocation.
3854	*/
3855	static int dbgcCmdWorkerSearchMem(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pAddress, uint64_t cMaxHits, char chType,
3856	PCDBGCVAR paPatArgs, unsigned cPatArgs, PDBGCVAR pResult)
3857	{
3858	if (pResult)
3859	DBGCVAR_INIT_GC_FLAT(pResult, 0);
3860
3861	/*
3862	* Convert the search pattern into bytes and DBGFR3MemScan can deal with.
3863	*/
3864	uint32_t cbUnit;
3865	switch (chType)
3866	{
3867	case 'a':
3868	case 'b': cbUnit = 1; break;
3869	case 'u': cbUnit = 2 \| RT_BIT_32(31); break;
3870	case 'w': cbUnit = 2; break;
3871	case 'd': cbUnit = 4; break;
3872	case 'q': cbUnit = 8; break;
3873	default:
3874	return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "chType=%c\n", chType);
3875	}
3876	uint8_t abBytes[RT_SIZEOFMEMB(DBGC, abSearch)];
3877	uint32_t cbBytes = sizeof(abBytes);
3878	int rc = dbgcVarsToBytes(pCmdHlp, abBytes, &cbBytes, cbUnit, paPatArgs, cPatArgs);
3879	if (RT_FAILURE(rc))
3880	return VERR_DBGC_COMMAND_FAILED;
3881
3882	/*
3883	* Make DBGF address and fix the range.
3884	*/
3885	DBGFADDRESS Address;
3886	rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pAddress, &Address);
3887	if (RT_FAILURE(rc))
3888	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "VarToDbgfAddr(,%Dv,)\n", pAddress);
3889
3890	RTGCUINTPTR cbRange;
3891	switch (pAddress->enmRangeType)
3892	{
3893	case DBGCVAR_RANGE_BYTES:
3894	cbRange = pAddress->u64Range;
3895	if (cbRange != pAddress->u64Range)
3896	cbRange = ~(RTGCUINTPTR)0;
3897	break;
3898
3899	case DBGCVAR_RANGE_ELEMENTS:
3900	cbRange = (RTGCUINTPTR)(pAddress->u64Range * cbUnit);
3901	if ( cbRange != pAddress->u64Range * cbUnit
3902	\|\| cbRange < pAddress->u64Range)
3903	cbRange = ~(RTGCUINTPTR)0;
3904	break;
3905
3906	default:
3907	cbRange = ~(RTGCUINTPTR)0;
3908	break;
3909	}
3910	if (Address.FlatPtr + cbRange < Address.FlatPtr)
3911	cbRange = ~(RTGCUINTPTR)0 - Address.FlatPtr + !!Address.FlatPtr;
3912
3913	/*
3914	* Ok, do it.
3915	*/
3916	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, abBytes, cbBytes, cbUnit, cMaxHits, pResult);
3917	}
3918
3919
3920	/**
3921	* @callback_method_impl{FNDBGCCMD, The 's' command.}
3922	*/
3923	static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3924	{
3925	/* check that the parser did what it's supposed to do. */
3926	//if ( cArgs <= 2
3927	// && paArgs[0].enmType != DBGCVAR_TYPE_STRING)
3928	// return DBGCCmdHlpPrintf(pCmdHlp, "parser error\n");
3929
3930	/*
3931	* Repeat previous search?
3932	*/
3933	if (cArgs == 0)
3934	return dbgcCmdWorkerSearchMemResume(pCmdHlp, pUVM, NULL);
3935
3936	/*
3937	* Parse arguments.
3938	*/
3939
3940	return -1;
3941	}
3942
3943
3944	/**
3945	* @callback_method_impl{FNDBGCCMD, The 's?' command.}
3946	*/
3947	static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3948	{
3949	/* check that the parser did what it's supposed to do. */
3950	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2 && DBGCVAR_ISGCPOINTER(paArgs[0].enmType));
3951	return dbgcCmdWorkerSearchMem(pCmdHlp, pUVM, &paArgs[0], 25, pCmd->pszCmd[1], paArgs + 1, cArgs - 1, NULL);
3952	}
3953
3954
3955	/**
3956	* @callback_method_impl{FNDBGCCMD, The 'sx[eni-]' commands.}
3957	*/
3958	static DECLCALLBACK(int) dbgcCmdEventCtrl(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3959	{
3960	return VERR_NOT_IMPLEMENTED;
3961	}
3962
3963
3964	/**
3965	* @callback_method_impl{FNDBGCCMD, The 'sx' commands.}
3966	*/
3967	static DECLCALLBACK(int) dbgcCmdEventCtrlList(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3968	{
3969	return VERR_NOT_IMPLEMENTED;
3970	}
3971
3972
3973	/**
3974	* @callback_method_impl{FNDBGCCMD, The 'sxr' commands.}
3975	*/
3976	static DECLCALLBACK(int) dbgcCmdEventCtrlReset(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3977	{
3978	return VERR_NOT_IMPLEMENTED;
3979	}
3980
3981
3982
3983	/**
3984	* List near symbol.
3985	*
3986	* @returns VBox status code.
3987	* @param pCmdHlp Pointer to command helper functions.
3988	* @param pUVM The user mode VM handle.
3989	* @param pArg Pointer to the address or symbol to lookup.
3990	*/
3991	static int dbgcDoListNear(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pArg)
3992	{
3993	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3994
3995	RTDBGSYMBOL Symbol;
3996	int rc;
3997	if (pArg->enmType == DBGCVAR_TYPE_SYMBOL)
3998	{
3999	/*
4000	* Lookup the symbol address.
4001	*/
4002	rc = DBGFR3AsSymbolByName(pUVM, pDbgc->hDbgAs, pArg->u.pszString, &Symbol, NULL);
4003	if (RT_FAILURE(rc))
4004	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3AsSymbolByName(,,%s,)\n", pArg->u.pszString);
4005
4006	rc = DBGCCmdHlpPrintf(pCmdHlp, "%RTptr %s\n", Symbol.Value, Symbol.szName);
4007	}
4008	else
4009	{
4010	/*
4011	* Convert it to a flat GC address and lookup that address.
4012	*/
4013	DBGCVAR AddrVar;
4014	rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(%DV)", pArg);
4015	if (RT_FAILURE(rc))
4016	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(%DV)\n", pArg);
4017
4018	RTINTPTR offDisp;
4019	DBGFADDRESS Addr;
4020	rc = DBGFR3AsSymbolByAddr(pUVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pDbgc->pUVM, &Addr, AddrVar.u.GCFlat),
4021	RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &offDisp, &Symbol, NULL);
4022	if (RT_FAILURE(rc))
4023	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3ASymbolByAddr(,,%RGv,,)\n", AddrVar.u.GCFlat);
4024
4025	if (!offDisp)
4026	rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s", &AddrVar, Symbol.szName);
4027	else if (offDisp > 0)
4028	rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s + %RGv", &AddrVar, Symbol.szName, offDisp);
4029	else
4030	rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s - %RGv", &AddrVar, Symbol.szName, -offDisp);
4031	if (Symbol.cb > 0)
4032	rc = DBGCCmdHlpPrintf(pCmdHlp, " (LB %RGv)\n", Symbol.cb);
4033	else
4034	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
4035	}
4036
4037	return rc;
4038	}
4039
4040
4041	/**
4042	* @callback_method_impl{FNDBGCCMD, The 'ln' (listnear) command.}
4043	*/
4044	static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
4045	{
4046	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
4047	if (!cArgs)
4048	{
4049	/*
4050	* Current cs:eip symbol.
4051	*/
4052	DBGCVAR AddrVar;
4053	const char *pszFmtExpr = pDbgc->fRegCtxGuest ? "%%(cs:eip)" : "%%(.cs:.eip)";
4054	int rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, pszFmtExpr);
4055	if (RT_FAILURE(rc))
4056	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%s\n", pszFmtExpr + 1);
4057	return dbgcDoListNear(pCmdHlp, pUVM, &AddrVar);
4058	}
4059
4060	/** @todo Fix the darn parser, it's resolving symbols specified as arguments before we get in here. */
4061	/*
4062	* Iterate arguments.
4063	*/
4064	for (unsigned iArg = 0; iArg < cArgs; iArg++)
4065	{
4066	int rc = dbgcDoListNear(pCmdHlp, pUVM, &paArgs[iArg]);
4067	if (RT_FAILURE(rc))
4068	return rc;
4069	}
4070
4071	NOREF(pCmd);
4072	return VINF_SUCCESS;
4073	}
4074
4075
4076	/**
4077	* Matches the module patters against a module name.
4078	*
4079	* @returns true if matching, otherwise false.
4080	* @param pszName The module name.
4081	* @param paArgs The module pattern argument list.
4082	* @param cArgs Number of arguments.
4083	*/
4084	static bool dbgcCmdListModuleMatch(const char *pszName, PCDBGCVAR paArgs, unsigned cArgs)
4085	{
4086	for (uint32_t i = 0; i < cArgs; i++)
4087	if (RTStrSimplePatternMatch(paArgs[i].u.pszString, pszName))
4088	return true;
4089	return false;
4090	}
4091
4092
4093	/**
4094	* @callback_method_impl{FNDBGCCMD, The 'ln' (list near) command.}
4095	*/
4096	static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
4097	{
4098	bool const fMappings = pCmd->pszCmd[2] == 'o';
4099	bool const fVerbose = pCmd->pszCmd[strlen(pCmd->pszCmd) - 1] == 'v';
4100	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
4101
4102	/*
4103	* Iterate the modules in the current address space and print info about
4104	* those matching the input.
4105	*/
4106	RTDBGAS hAs = DBGFR3AsResolveAndRetain(pUVM, pDbgc->hDbgAs);
4107	uint32_t cMods = RTDbgAsModuleCount(hAs);
4108	for (uint32_t iMod = 0; iMod < cMods; iMod++)
4109	{
4110	RTDBGMOD hMod = RTDbgAsModuleByIndex(hAs, iMod);
4111	if (hMod != NIL_RTDBGMOD)
4112	{
4113	bool const fDeferred = RTDbgModIsDeferred(hMod);
4114	bool const fExports = RTDbgModIsExports(hMod);
4115	uint32_t const cSegs = fDeferred ? 1 : RTDbgModSegmentCount(hMod);
4116	const char * const pszName = RTDbgModName(hMod);
4117	const char * const pszImgFile = RTDbgModImageFile(hMod);
4118	const char * const pszImgFileUsed = RTDbgModImageFileUsed(hMod);
4119	const char * const pszDbgFile = RTDbgModDebugFile(hMod);
4120	if ( cArgs == 0
4121	\|\| dbgcCmdListModuleMatch(pszName, paArgs, cArgs))
4122	{
4123	/*
4124	* Find the mapping with the lower address, preferring a full
4125	* image mapping, for the main line.
4126	*/
4127	RTDBGASMAPINFO aMappings[128];
4128	uint32_t cMappings = RT_ELEMENTS(aMappings);
4129	int rc = RTDbgAsModuleQueryMapByIndex(hAs, iMod, &aMappings[0], &cMappings, 0 /fFlags/);
4130	if (RT_SUCCESS(rc))
4131	{
4132	bool fFull = false;
4133	RTUINTPTR uMin = RTUINTPTR_MAX;
4134	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4135	if ( aMappings[iMap].Address < uMin
4136	&& ( !fFull
4137	\|\| aMappings[iMap].iSeg == NIL_RTDBGSEGIDX))
4138	uMin = aMappings[iMap].Address;
4139	if (!fVerbose \|\| !pszImgFile)
4140	DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %s%s\n", (RTGCUINTPTR)uMin, cSegs, pszName,
4141	fExports ? " (exports)" : fDeferred ? " (deferred)" : "");
4142	else
4143	DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %-12s %s%s\n", (RTGCUINTPTR)uMin, cSegs, pszName, pszImgFile,
4144	fExports ? " (exports)" : fDeferred ? " (deferred)" : "");
4145	if (fVerbose && pszImgFileUsed)
4146	DBGCCmdHlpPrintf(pCmdHlp, " Local image: %s\n", pszImgFileUsed);
4147	if (fVerbose && pszDbgFile)
4148	DBGCCmdHlpPrintf(pCmdHlp, " Debug file: %s\n", pszDbgFile);
4149
4150	if (fMappings)
4151	{
4152	/* sort by address first - not very efficient. */
4153	for (uint32_t i = 0; i + 1 < cMappings; i++)
4154	for (uint32_t j = i + 1; j < cMappings; j++)
4155	if (aMappings[j].Address < aMappings[i].Address)
4156	{
4157	RTDBGASMAPINFO Tmp = aMappings[j];
4158	aMappings[j] = aMappings[i];
4159	aMappings[i] = Tmp;
4160	}
4161
4162	/* print */
4163	if ( cMappings == 1
4164	&& aMappings[0].iSeg == NIL_RTDBGSEGIDX
4165	&& !fDeferred)
4166	{
4167	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
4168	{
4169	RTDBGSEGMENT SegInfo;
4170	rc = RTDbgModSegmentByIndex(hMod, iSeg, &SegInfo);
4171	if (RT_SUCCESS(rc))
4172	{
4173	if (SegInfo.uRva != RTUINTPTR_MAX)
4174	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4175	(RTGCUINTPTR)(aMappings[0].Address + SegInfo.uRva),
4176	(RTGCUINTPTR)SegInfo.cb, iSeg, SegInfo.szName);
4177	else
4178	DBGCCmdHlpPrintf(pCmdHlp, " %*s %RGv #%02x %s\n",
4179	sizeof(RTGCUINTPTR)*2, "noload",
4180	(RTGCUINTPTR)SegInfo.cb, iSeg, SegInfo.szName);
4181	}
4182	else
4183	DBGCCmdHlpPrintf(pCmdHlp, " Error query segment #%u: %Rrc\n", iSeg, rc);
4184	}
4185	}
4186	else
4187	{
4188	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4189	if (aMappings[iMap].iSeg == NIL_RTDBGSEGIDX)
4190	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv <everything>\n",
4191	(RTGCUINTPTR)aMappings[iMap].Address,
4192	(RTGCUINTPTR)RTDbgModImageSize(hMod));
4193	else if (!fDeferred)
4194	{
4195	RTDBGSEGMENT SegInfo;
4196	rc = RTDbgModSegmentByIndex(hMod, aMappings[iMap].iSeg, &SegInfo);
4197	if (RT_FAILURE(rc))
4198	{
4199	RT_ZERO(SegInfo);
4200	strcpy(SegInfo.szName, "error");
4201	}
4202	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4203	(RTGCUINTPTR)aMappings[iMap].Address,
4204	(RTGCUINTPTR)SegInfo.cb,
4205	aMappings[iMap].iSeg, SegInfo.szName);
4206	}
4207	else
4208	DBGCCmdHlpPrintf(pCmdHlp, " %RGv #%02x\n",
4209	(RTGCUINTPTR)aMappings[iMap].Address, aMappings[iMap].iSeg);
4210	}
4211	}
4212	}
4213	else
4214	DBGCCmdHlpPrintf(pCmdHlp, "%.*s %04x %s (rc=%Rrc)\n",
4215	sizeof(RTGCPTR) * 2, "???????????", cSegs, pszName, rc);
4216	/** @todo missing address space API for enumerating the mappings. */
4217	}
4218	RTDbgModRelease(hMod);
4219	}
4220	}
4221	RTDbgAsRelease(hAs);
4222
4223	NOREF(pCmd);
4224	return VINF_SUCCESS;
4225	}
4226
4227
4228
4229	/**
4230	* @callback_method_impl{FNDBGCFUNC, Reads a unsigned 8-bit value.}
4231	*/
4232	static DECLCALLBACK(int) dbgcFuncReadU8(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4233	PDBGCVAR pResult)
4234	{
4235	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4236	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4237	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4238
4239	uint8_t b;
4240	int rc = DBGCCmdHlpMemRead(pCmdHlp, &b, sizeof(b), &paArgs[0], NULL);
4241	if (RT_FAILURE(rc))
4242	return rc;
4243	DBGCVAR_INIT_NUMBER(pResult, b);
4244
4245	NOREF(pFunc);
4246	return VINF_SUCCESS;
4247	}
4248
4249
4250	/**
4251	* @callback_method_impl{FNDBGCFUNC, Reads a unsigned 16-bit value.}
4252	*/
4253	static DECLCALLBACK(int) dbgcFuncReadU16(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4254	PDBGCVAR pResult)
4255	{
4256	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4257	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4258	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4259
4260	uint16_t u16;
4261	int rc = DBGCCmdHlpMemRead(pCmdHlp, &u16, sizeof(u16), &paArgs[0], NULL);
4262	if (RT_FAILURE(rc))
4263	return rc;
4264	DBGCVAR_INIT_NUMBER(pResult, u16);
4265
4266	NOREF(pFunc);
4267	return VINF_SUCCESS;
4268	}
4269
4270
4271	/**
4272	* @callback_method_impl{FNDBGCFUNC, Reads a unsigned 32-bit value.}
4273	*/
4274	static DECLCALLBACK(int) dbgcFuncReadU32(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4275	PDBGCVAR pResult)
4276	{
4277	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4278	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4279	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4280
4281	uint32_t u32;
4282	int rc = DBGCCmdHlpMemRead(pCmdHlp, &u32, sizeof(u32), &paArgs[0], NULL);
4283	if (RT_FAILURE(rc))
4284	return rc;
4285	DBGCVAR_INIT_NUMBER(pResult, u32);
4286
4287	NOREF(pFunc);
4288	return VINF_SUCCESS;
4289	}
4290
4291
4292	/**
4293	* @callback_method_impl{FNDBGCFUNC, Reads a unsigned 64-bit value.}
4294	*/
4295	static DECLCALLBACK(int) dbgcFuncReadU64(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4296	PDBGCVAR pResult)
4297	{
4298	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4299	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4300	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4301
4302	uint64_t u64;
4303	int rc = DBGCCmdHlpMemRead(pCmdHlp, &u64, sizeof(u64), &paArgs[0], NULL);
4304	if (RT_FAILURE(rc))
4305	return rc;
4306	DBGCVAR_INIT_NUMBER(pResult, u64);
4307
4308	NOREF(pFunc);
4309	return VINF_SUCCESS;
4310	}
4311
4312
4313	/**
4314	* @callback_method_impl{FNDBGCFUNC, Reads a unsigned pointer-sized value.}
4315	*/
4316	static DECLCALLBACK(int) dbgcFuncReadPtr(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4317	PDBGCVAR pResult)
4318	{
4319	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4320	AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4321	AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4322
4323	CPUMMODE enmMode = DBGCCmdHlpGetCpuMode(pCmdHlp);
4324	if (enmMode == CPUMMODE_LONG)
4325	return dbgcFuncReadU64(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4326	return dbgcFuncReadU32(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4327	}
4328
4329
4330	/**
4331	* @callback_method_impl{FNDBGCFUNC, The hi(value) function implementation.}
4332	*/
4333	static DECLCALLBACK(int) dbgcFuncHi(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4334	PDBGCVAR pResult)
4335	{
4336	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4337
4338	uint16_t uHi;
4339	switch (paArgs[0].enmType)
4340	{
4341	case DBGCVAR_TYPE_GC_FLAT: uHi = (uint16_t)(paArgs[0].u.GCFlat >> 16); break;
4342	case DBGCVAR_TYPE_GC_FAR: uHi = (uint16_t)paArgs[0].u.GCFar.sel; break;
4343	case DBGCVAR_TYPE_GC_PHYS: uHi = (uint16_t)(paArgs[0].u.GCPhys >> 16); break;
4344	case DBGCVAR_TYPE_HC_FLAT: uHi = (uint16_t)((uintptr_t)paArgs[0].u.pvHCFlat >> 16); break;
4345	case DBGCVAR_TYPE_HC_PHYS: uHi = (uint16_t)(paArgs[0].u.HCPhys >> 16); break;
4346	case DBGCVAR_TYPE_NUMBER: uHi = (uint16_t)(paArgs[0].u.u64Number >> 16); break;
4347	default:
4348	AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4349	}
4350	DBGCVAR_INIT_NUMBER(pResult, uHi);
4351	DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4352
4353	NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4354	return VINF_SUCCESS;
4355	}
4356
4357
4358	/**
4359	* @callback_method_impl{FNDBGCFUNC, The low(value) function implementation.}
4360	*/
4361	static DECLCALLBACK(int) dbgcFuncLow(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4362	PDBGCVAR pResult)
4363	{
4364	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4365
4366	uint16_t uLow;
4367	switch (paArgs[0].enmType)
4368	{
4369	case DBGCVAR_TYPE_GC_FLAT: uLow = (uint16_t)paArgs[0].u.GCFlat; break;
4370	case DBGCVAR_TYPE_GC_FAR: uLow = (uint16_t)paArgs[0].u.GCFar.off; break;
4371	case DBGCVAR_TYPE_GC_PHYS: uLow = (uint16_t)paArgs[0].u.GCPhys; break;
4372	case DBGCVAR_TYPE_HC_FLAT: uLow = (uint16_t)(uintptr_t)paArgs[0].u.pvHCFlat; break;
4373	case DBGCVAR_TYPE_HC_PHYS: uLow = (uint16_t)paArgs[0].u.HCPhys; break;
4374	case DBGCVAR_TYPE_NUMBER: uLow = (uint16_t)paArgs[0].u.u64Number; break;
4375	default:
4376	AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4377	}
4378	DBGCVAR_INIT_NUMBER(pResult, uLow);
4379	DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4380
4381	NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4382	return VINF_SUCCESS;
4383	}
4384
4385
4386	/**
4387	* @callback_method_impl{FNDBGCFUNC,The low(value) function implementation.}
4388	*/
4389	static DECLCALLBACK(int) dbgcFuncNot(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4390	PDBGCVAR pResult)
4391	{
4392	AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4393	NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4394	return DBGCCmdHlpEval(pCmdHlp, pResult, "!(%Dv)", &paArgs[0]);
4395	}
4396
4397
4398	/** Generic pointer argument wo/ range. */
4399	static const DBGCVARDESC g_aArgPointerWoRange[] =
4400	{
4401	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4402	{ 1, 1, DBGCVAR_CAT_POINTER_NO_RANGE, 0, "value", "Address or number." },
4403	};
4404
4405	/** Generic pointer or number argument. */
4406	static const DBGCVARDESC g_aArgPointerNumber[] =
4407	{
4408	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4409	{ 1, 1, DBGCVAR_CAT_POINTER_NUMBER, 0, "value", "Address or number." },
4410	};
4411
4412
4413
4414	/** Function descriptors for the CodeView / WinDbg emulation.
4415	* The emulation isn't attempting to be identical, only somewhat similar.
4416	*/
4417	const DBGCFUNC g_aFuncsCodeView[] =
4418	{
4419	{ "by", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU8, "address", "Reads a byte at the given address." },
4420	{ "dwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU32, "address", "Reads a 32-bit value at the given address." },
4421	{ "hi", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncHi, "value", "Returns the high 16-bit bits of a value." },
4422	{ "low", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncLow, "value", "Returns the low 16-bit bits of a value." },
4423	{ "not", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncNot, "address", "Boolean NOT." },
4424	{ "poi", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadPtr, "address", "Reads a pointer sized (CS) value at the given address." },
4425	{ "qwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU64, "address", "Reads a 32-bit value at the given address." },
4426	{ "wo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU16, "address", "Reads a 16-bit value at the given address." },
4427	};
4428
4429	/** The number of functions in the CodeView/WinDbg emulation. */
4430	const uint32_t g_cFuncsCodeView = RT_ELEMENTS(g_aFuncsCodeView);
4431

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source: vbox/trunk/src/VBox/Debugger/DBGCEmulateCodeView.cpp@ 59036

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