STAM.cpp@ 44399

Last change on this file since 44399 was 44399, checked in by vboxsync, 12 years ago
DBGF,DBGC,++: PVM -> PUVM. Some refactoring and cleanup as well.
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1	/* $Id: STAM.cpp 44399 2013-01-27 21:12:53Z vboxsync $ */
2	/** @file
3	* STAM - The Statistics Manager.
4	*/
5
6	/*
7	* Copyright (C) 2006-2013 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	/** @page pg_stam STAM - The Statistics Manager
19	*
20	* The purpose for the statistics manager is to present the rest of the system
21	* with a somewhat uniform way of accessing VMM statistics. STAM sports a
22	* couple of different APIs for accessing them: STAMR3EnumU, STAMR3SnapshotU,
23	* STAMR3DumpU, STAMR3DumpToReleaseLogU and the debugger. Main is exposing the
24	* XML based one, STAMR3SnapshotU.
25	*
26	* The rest of the VMM together with the devices and drivers registers their
27	* statistics with STAM giving them a name. The name is hierarchical, the
28	* components separated by slashes ('/') and must start with a slash.
29	*
30	* Each item registered with STAM - also, half incorrectly, called a sample -
31	* has a type, unit, visibility, data pointer and description associated with it
32	* in addition to the name (described above). The type tells STAM what kind of
33	* structure the pointer is pointing to. The visibility allows unused
34	* statistics from cluttering the output or showing up in the GUI. All the bits
35	* together makes STAM able to present the items in a sensible way to the user.
36	* Some types also allows STAM to reset the data, which is very convenient when
37	* digging into specific operations and such.
38	*
39	* PS. The VirtualBox Debugger GUI has a viewer for inspecting the statistics
40	* STAM provides. You will also find statistics in the release and debug logs.
41	* And as mentioned in the introduction, the debugger console features a couple
42	* of command: .stats and .statsreset.
43	*
44	* @see grp_stam
45	*/
46
47	/*******************************************************************************
48	* Header Files *
49	*******************************************************************************/
50	#define LOG_GROUP LOG_GROUP_STAM
51	#include <VBox/vmm/stam.h>
52	#include "STAMInternal.h"
53	#include <VBox/vmm/vm.h>
54	#include <VBox/vmm/uvm.h>
55	#include <VBox/err.h>
56	#include <VBox/dbg.h>
57	#include <VBox/log.h>
58
59	#include <iprt/assert.h>
60	#include <iprt/asm.h>
61	#include <iprt/alloc.h>
62	#include <iprt/stream.h>
63	#include <iprt/string.h>
64
65
66	/*******************************************************************************
67	* Structures and Typedefs *
68	*******************************************************************************/
69	/**
70	* Argument structure for stamR3PrintOne().
71	*/
72	typedef struct STAMR3PRINTONEARGS
73	{
74	PUVM pUVM;
75	void *pvArg;
76	DECLCALLBACKMEMBER(void, pfnPrintf)(struct STAMR3PRINTONEARGS pvArg, const char pszFormat, ...);
77	} STAMR3PRINTONEARGS, *PSTAMR3PRINTONEARGS;
78
79
80	/**
81	* Argument structure to stamR3EnumOne().
82	*/
83	typedef struct STAMR3ENUMONEARGS
84	{
85	PVM pVM;
86	PFNSTAMR3ENUM pfnEnum;
87	void *pvUser;
88	} STAMR3ENUMONEARGS, *PSTAMR3ENUMONEARGS;
89
90
91	/**
92	* The snapshot status structure.
93	* Argument package passed to stamR3SnapshotOne, stamR3SnapshotPrintf and stamR3SnapshotOutput.
94	*/
95	typedef struct STAMR3SNAPSHOTONE
96	{
97	/** Pointer to the buffer start. */
98	char *pszStart;
99	/** Pointer to the buffer end. */
100	char *pszEnd;
101	/** Pointer to the current buffer position. */
102	char *psz;
103	/** Pointer to the VM. */
104	PVM pVM;
105	/** The number of bytes allocated. */
106	size_t cbAllocated;
107	/** The status code. */
108	int rc;
109	/** Whether to include the description strings. */
110	bool fWithDesc;
111	} STAMR3SNAPSHOTONE, *PSTAMR3SNAPSHOTONE;
112
113
114	/**
115	* Init record for a ring-0 statistic sample.
116	*/
117	typedef struct STAMR0SAMPLE
118	{
119	/** The GVMMSTATS structure offset of the variable. */
120	unsigned offVar;
121	/** The type. */
122	STAMTYPE enmType;
123	/** The unit. */
124	STAMUNIT enmUnit;
125	/** The name. */
126	const char *pszName;
127	/** The description. */
128	const char *pszDesc;
129	} STAMR0SAMPLE;
130
131
132	/*******************************************************************************
133	* Internal Functions *
134	*******************************************************************************/
135	static int stamR3RegisterU(PUVM pUVM, void *pvSample, PFNSTAMR3CALLBACKRESET pfnReset, PFNSTAMR3CALLBACKPRINT pfnPrint,
136	STAMTYPE enmType, STAMVISIBILITY enmVisibility, const char pszName, STAMUNIT enmUnit, const char pszDesc);
137	static int stamR3ResetOne(PSTAMDESC pDesc, void *pvArg);
138	static DECLCALLBACK(void) stamR3EnumLogPrintf(PSTAMR3PRINTONEARGS pvArg, const char *pszFormat, ...);
139	static DECLCALLBACK(void) stamR3EnumRelLogPrintf(PSTAMR3PRINTONEARGS pvArg, const char *pszFormat, ...);
140	static DECLCALLBACK(void) stamR3EnumPrintf(PSTAMR3PRINTONEARGS pvArg, const char *pszFormat, ...);
141	static int stamR3SnapshotOne(PSTAMDESC pDesc, void *pvArg);
142	static int stamR3SnapshotPrintf(PSTAMR3SNAPSHOTONE pThis, const char *pszFormat, ...);
143	static int stamR3PrintOne(PSTAMDESC pDesc, void *pvArg);
144	static int stamR3EnumOne(PSTAMDESC pDesc, void *pvArg);
145	static bool stamR3MultiMatch(const char * const papszExpressions, unsigned cExpressions, unsigned piExpression, const char *pszName);
146	static char ** stamR3SplitPattern(const char pszPat, unsigned pcExpressions, char **ppszCopy);
147	static int stamR3EnumU(PUVM pUVM, const char pszPat, bool fUpdateRing0, int (pfnCallback)(PSTAMDESC pDesc, void pvArg), void *pvArg);
148	static void stamR3Ring0StatsRegisterU(PUVM pUVM);
149	static void stamR3Ring0StatsUpdateU(PUVM pUVM, const char *pszPat);
150	static void stamR3Ring0StatsUpdateMultiU(PUVM pUVM, const char * const *papszExpressions, unsigned cExpressions);
151
152	#ifdef VBOX_WITH_DEBUGGER
153	static FNDBGCCMD stamR3CmdStats;
154	static DECLCALLBACK(void) stamR3EnumDbgfPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...);
155	static FNDBGCCMD stamR3CmdStatsReset;
156	#endif
157
158
159	/*******************************************************************************
160	* Global Variables *
161	*******************************************************************************/
162	#ifdef VBOX_WITH_DEBUGGER
163	/** Pattern argument. */
164	static const DBGCVARDESC g_aArgPat[] =
165	{
166	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
167	{ 0, 1, DBGCVAR_CAT_STRING, 0, "pattern", "Which samples the command shall be applied to. Use '*' as wildcard. Use ';' to separate expression." }
168	};
169
170	/** Command descriptors. */
171	static const DBGCCMD g_aCmds[] =
172	{
173	/* pszCmd, cArgsMin, cArgsMax, paArgDesc, cArgDescs, fFlags, pfnHandler pszSyntax, ....pszDescription */
174	{ "stats", 0, 1, &g_aArgPat[0], RT_ELEMENTS(g_aArgPat), 0, stamR3CmdStats, "[pattern]", "Display statistics." },
175	{ "statsreset", 0, 1, &g_aArgPat[0], RT_ELEMENTS(g_aArgPat), 0, stamR3CmdStatsReset,"[pattern]", "Resets statistics." }
176	};
177	#endif
178
179
180	/**
181	* The GVMM mapping records - sans the host cpus.
182	*/
183	static const STAMR0SAMPLE g_aGVMMStats[] =
184	{
185	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltCalls", "The number of calls to GVMMR0SchedHalt." },
186	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltBlocking), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltBlocking", "The number of times we did go to sleep in GVMMR0SchedHalt." },
187	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltTimeouts), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltTimeouts", "The number of times we timed out in GVMMR0SchedHalt." },
188	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltNotBlocking), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltNotBlocking", "The number of times we didn't go to sleep in GVMMR0SchedHalt." },
189	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltWakeUps", "The number of wake ups done during GVMMR0SchedHalt." },
190	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cWakeUpCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/WakeUpCalls", "The number of calls to GVMMR0WakeUp." },
191	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cWakeUpNotHalted), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/WakeUpNotHalted", "The number of times the EMT thread wasn't actually halted when GVMMR0WakeUp was called." },
192	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cWakeUpWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/WakeUpWakeUps", "The number of wake ups done during GVMMR0WakeUp (not counting the explicit one)." },
193	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cPokeCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/PokeCalls", "The number of calls to GVMMR0Poke." },
194	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cPokeNotBusy), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/PokeNotBusy", "The number of times the EMT thread wasn't actually busy when GVMMR0Poke was called." },
195	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cPollCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/PollCalls", "The number of calls to GVMMR0SchedPoll." },
196	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cPollHalts), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/PollHalts", "The number of times the EMT has halted in a GVMMR0SchedPoll call." },
197	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cPollWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/PollWakeUps", "The number of wake ups done during GVMMR0SchedPoll." },
198
199	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltCalls", "The number of calls to GVMMR0SchedHalt." },
200	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltBlocking), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltBlocking", "The number of times we did go to sleep in GVMMR0SchedHalt." },
201	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltTimeouts), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltTimeouts", "The number of times we timed out in GVMMR0SchedHalt." },
202	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltNotBlocking), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltNotBlocking", "The number of times we didn't go to sleep in GVMMR0SchedHalt." },
203	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltWakeUps", "The number of wake ups done during GVMMR0SchedHalt." },
204	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cWakeUpCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/WakeUpCalls", "The number of calls to GVMMR0WakeUp." },
205	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cWakeUpNotHalted), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/WakeUpNotHalted", "The number of times the EMT thread wasn't actually halted when GVMMR0WakeUp was called." },
206	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cWakeUpWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/WakeUpWakeUps", "The number of wake ups done during GVMMR0WakeUp (not counting the explicit one)." },
207	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cPokeCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/PokeCalls", "The number of calls to GVMMR0Poke." },
208	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cPokeNotBusy), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/PokeNotBusy", "The number of times the EMT thread wasn't actually busy when GVMMR0Poke was called." },
209	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cPollCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/PollCalls", "The number of calls to GVMMR0SchedPoll." },
210	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cPollHalts), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/PollHalts", "The number of times the EMT has halted in a GVMMR0SchedPoll call." },
211	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cPollWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/PollWakeUps", "The number of wake ups done during GVMMR0SchedPoll." },
212
213	{ RT_UOFFSETOF(GVMMSTATS, cVMs), STAMTYPE_U32, STAMUNIT_CALLS, "/GVMM/VMs", "The number of VMs accessible to the caller." },
214	{ RT_UOFFSETOF(GVMMSTATS, cEMTs), STAMTYPE_U32, STAMUNIT_CALLS, "/GVMM/EMTs", "The number of emulation threads." },
215	{ RT_UOFFSETOF(GVMMSTATS, cHostCpus), STAMTYPE_U32, STAMUNIT_CALLS, "/GVMM/HostCPUs", "The number of host CPUs." },
216	};
217
218
219	/**
220	* The GMM mapping records.
221	*/
222	static const STAMR0SAMPLE g_aGMMStats[] =
223	{
224	{ RT_UOFFSETOF(GMMSTATS, cMaxPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cMaxPages", "The maximum number of pages GMM is allowed to allocate." },
225	{ RT_UOFFSETOF(GMMSTATS, cReservedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cReservedPages", "The number of pages that has been reserved." },
226	{ RT_UOFFSETOF(GMMSTATS, cOverCommittedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cOverCommittedPages", "The number of pages that we have over-committed in reservations." },
227	{ RT_UOFFSETOF(GMMSTATS, cAllocatedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cAllocatedPages", "The number of actually allocated (committed if you like) pages." },
228	{ RT_UOFFSETOF(GMMSTATS, cSharedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cSharedPages", "The number of pages that are shared. A subset of cAllocatedPages." },
229	{ RT_UOFFSETOF(GMMSTATS, cDuplicatePages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cDuplicatePages", "The number of pages that are actually shared between VMs." },
230	{ RT_UOFFSETOF(GMMSTATS, cLeftBehindSharedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cLeftBehindSharedPages", "The number of pages that are shared that has been left behind by VMs not doing proper cleanups." },
231	{ RT_UOFFSETOF(GMMSTATS, cBalloonedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cBalloonedPages", "The number of current ballooned pages." },
232	{ RT_UOFFSETOF(GMMSTATS, cChunks), STAMTYPE_U32, STAMUNIT_COUNT, "/GMM/cChunks", "The number of allocation chunks." },
233	{ RT_UOFFSETOF(GMMSTATS, cFreedChunks), STAMTYPE_U32, STAMUNIT_COUNT, "/GMM/cFreedChunks", "The number of freed chunks ever." },
234	{ RT_UOFFSETOF(GMMSTATS, cShareableModules), STAMTYPE_U32, STAMUNIT_COUNT, "/GMM/cShareableModules", "The number of shareable modules." },
235	{ RT_UOFFSETOF(GMMSTATS, VMStats.Reserved.cBasePages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/VM/Reserved/cBasePages", "The amount of base memory (RAM, ROM, ++) reserved by the VM." },
236	{ RT_UOFFSETOF(GMMSTATS, VMStats.Reserved.cShadowPages), STAMTYPE_U32, STAMUNIT_PAGES, "/GMM/VM/Reserved/cShadowPages", "The amount of memory reserved for shadow/nested page tables." },
237	{ RT_UOFFSETOF(GMMSTATS, VMStats.Reserved.cFixedPages), STAMTYPE_U32, STAMUNIT_PAGES, "/GMM/VM/Reserved/cFixedPages", "The amount of memory reserved for fixed allocations like MMIO2 and the hyper heap." },
238	{ RT_UOFFSETOF(GMMSTATS, VMStats.Allocated.cBasePages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/VM/Allocated/cBasePages", "The amount of base memory (RAM, ROM, ++) allocated by the VM." },
239	{ RT_UOFFSETOF(GMMSTATS, VMStats.Allocated.cShadowPages), STAMTYPE_U32, STAMUNIT_PAGES, "/GMM/VM/Allocated/cShadowPages", "The amount of memory allocated for shadow/nested page tables." },
240	{ RT_UOFFSETOF(GMMSTATS, VMStats.Allocated.cFixedPages), STAMTYPE_U32, STAMUNIT_PAGES, "/GMM/VM/Allocated/cFixedPages", "The amount of memory allocated for fixed allocations like MMIO2 and the hyper heap." },
241	{ RT_UOFFSETOF(GMMSTATS, VMStats.cPrivatePages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/VM/cPrivatePages", "The current number of private pages." },
242	{ RT_UOFFSETOF(GMMSTATS, VMStats.cSharedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/VM/cSharedPages", "The current number of shared pages." },
243	{ RT_UOFFSETOF(GMMSTATS, VMStats.cBalloonedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/VM/cBalloonedPages", "The current number of ballooned pages." },
244	{ RT_UOFFSETOF(GMMSTATS, VMStats.cMaxBalloonedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/VM/cMaxBalloonedPages", "The max number of pages that can be ballooned." },
245	{ RT_UOFFSETOF(GMMSTATS, VMStats.cReqBalloonedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/VM/cReqBalloonedPages", "The number of pages we've currently requested the guest to give us." },
246	{ RT_UOFFSETOF(GMMSTATS, VMStats.cReqActuallyBalloonedPages),STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/VM/cReqActuallyBalloonedPages","The number of pages the guest has given us in response to the request." },
247	{ RT_UOFFSETOF(GMMSTATS, VMStats.cReqDeflatePages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/VM/cReqDeflatePages", "The number of pages we've currently requested the guest to take back." },
248	{ RT_UOFFSETOF(GMMSTATS, VMStats.cShareableModules), STAMTYPE_U32, STAMUNIT_COUNT, "/GMM/VM/cShareableModules", "The number of shareable modules traced by the VM." },
249	{ RT_UOFFSETOF(GMMSTATS, VMStats.enmPolicy), STAMTYPE_U32, STAMUNIT_NONE, "/GMM/VM/enmPolicy", "The current over-commit policy." },
250	{ RT_UOFFSETOF(GMMSTATS, VMStats.enmPriority), STAMTYPE_U32, STAMUNIT_NONE, "/GMM/VM/enmPriority", "The VM priority for arbitrating VMs in low and out of memory situation." },
251	{ RT_UOFFSETOF(GMMSTATS, VMStats.fBallooningEnabled), STAMTYPE_BOOL, STAMUNIT_NONE, "/GMM/VM/fBallooningEnabled", "Whether ballooning is enabled or not." },
252	{ RT_UOFFSETOF(GMMSTATS, VMStats.fBallooningEnabled), STAMTYPE_BOOL, STAMUNIT_NONE, "/GMM/VM/fSharedPagingEnabled", "Whether shared paging is enabled or not." },
253	{ RT_UOFFSETOF(GMMSTATS, VMStats.fBallooningEnabled), STAMTYPE_BOOL, STAMUNIT_NONE, "/GMM/VM/fMayAllocate", "Whether the VM is allowed to allocate memory or not." },
254	};
255
256
257	/**
258	* Initializes the STAM.
259	*
260	* @returns VBox status code.
261	* @param pVM Pointer to the VM.
262	*/
263	VMMR3DECL(int) STAMR3InitUVM(PUVM pUVM)
264	{
265	LogFlow(("STAMR3Init\n"));
266
267	/*
268	* Assert alignment and sizes.
269	*/
270	AssertCompile(sizeof(pUVM->stam.s) <= sizeof(pUVM->stam.padding));
271	AssertRelease(sizeof(pUVM->stam.s) <= sizeof(pUVM->stam.padding));
272
273	/*
274	* Setup any fixed pointers and offsets.
275	*/
276	int rc = RTSemRWCreate(&pUVM->stam.s.RWSem);
277	AssertRCReturn(rc, rc);
278
279	/*
280	* Register the ring-0 statistics (GVMM/GMM).
281	*/
282	stamR3Ring0StatsRegisterU(pUVM);
283
284	#ifdef VBOX_WITH_DEBUGGER
285	/*
286	* Register debugger commands.
287	*/
288	static bool fRegisteredCmds = false;
289	if (!fRegisteredCmds)
290	{
291	rc = DBGCRegisterCommands(&g_aCmds[0], RT_ELEMENTS(g_aCmds));
292	if (RT_SUCCESS(rc))
293	fRegisteredCmds = true;
294	}
295	#endif
296
297	return VINF_SUCCESS;
298	}
299
300
301	/**
302	* Terminates the STAM.
303	*
304	* @param pUVM Pointer to the user mode VM structure.
305	*/
306	VMMR3DECL(void) STAMR3TermUVM(PUVM pUVM)
307	{
308	/*
309	* Free used memory and the RWLock.
310	*/
311	PSTAMDESC pCur = pUVM->stam.s.pHead;
312	while (pCur)
313	{
314	void *pvFree = pCur;
315	pCur = pCur->pNext;
316	RTMemFree(pvFree);
317	}
318	pUVM->stam.s.pHead = NULL;
319
320	Assert(pUVM->stam.s.RWSem != NIL_RTSEMRW);
321	RTSemRWDestroy(pUVM->stam.s.RWSem);
322	pUVM->stam.s.RWSem = NIL_RTSEMRW;
323	}
324
325
326	/**
327	* Registers a sample with the statistics manager.
328	*
329	* Statistics are maintained on a per VM basis and is normally registered
330	* during the VM init stage, but there is nothing preventing you from
331	* register them at runtime.
332	*
333	* Use STAMR3Deregister() to deregister statistics at runtime, however do
334	* not bother calling at termination time.
335	*
336	* It is not possible to register the same sample twice.
337	*
338	* @returns VBox status.
339	* @param pUVM Pointer to the user mode VM structure.
340	* @param pvSample Pointer to the sample.
341	* @param enmType Sample type. This indicates what pvSample is pointing at.
342	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
343	* @param pszName Sample name. The name is on this form "/<component>/<sample>".
344	* Further nesting is possible.
345	* @param enmUnit Sample unit.
346	* @param pszDesc Sample description.
347	*/
348	VMMR3DECL(int) STAMR3RegisterU(PUVM pUVM, void pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, const char pszName, STAMUNIT enmUnit, const char *pszDesc)
349	{
350	AssertReturn(enmType != STAMTYPE_CALLBACK, VERR_INVALID_PARAMETER);
351	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
352	return stamR3RegisterU(pUVM, pvSample, NULL, NULL, enmType, enmVisibility, pszName, enmUnit, pszDesc);
353	}
354
355
356	/**
357	* Registers a sample with the statistics manager.
358	*
359	* Statistics are maintained on a per VM basis and is normally registered
360	* during the VM init stage, but there is nothing preventing you from
361	* register them at runtime.
362	*
363	* Use STAMR3Deregister() to deregister statistics at runtime, however do
364	* not bother calling at termination time.
365	*
366	* It is not possible to register the same sample twice.
367	*
368	* @returns VBox status.
369	* @param pVM Pointer to the VM.
370	* @param pvSample Pointer to the sample.
371	* @param enmType Sample type. This indicates what pvSample is pointing at.
372	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
373	* @param pszName Sample name. The name is on this form "/<component>/<sample>".
374	* Further nesting is possible.
375	* @param enmUnit Sample unit.
376	* @param pszDesc Sample description.
377	*/
378	VMMR3DECL(int) STAMR3Register(PVM pVM, void pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, const char pszName, STAMUNIT enmUnit, const char *pszDesc)
379	{
380	AssertReturn(enmType != STAMTYPE_CALLBACK, VERR_INVALID_PARAMETER);
381	return stamR3RegisterU(pVM->pUVM, pvSample, NULL, NULL, enmType, enmVisibility, pszName, enmUnit, pszDesc);
382	}
383
384
385	/**
386	* Same as STAMR3RegisterU except that the name is specified in a
387	* RTStrPrintf like fashion.
388	*
389	* @returns VBox status.
390	* @param pUVM Pointer to the user mode VM structure.
391	* @param pvSample Pointer to the sample.
392	* @param enmType Sample type. This indicates what pvSample is pointing at.
393	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
394	* @param enmUnit Sample unit.
395	* @param pszDesc Sample description.
396	* @param pszName The sample name format string.
397	* @param ... Arguments to the format string.
398	*/
399	VMMR3DECL(int) STAMR3RegisterFU(PUVM pUVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
400	const char pszDesc, const char pszName, ...)
401	{
402	va_list args;
403	va_start(args, pszName);
404	int rc = STAMR3RegisterVU(pUVM, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName, args);
405	va_end(args);
406	return rc;
407	}
408
409
410	/**
411	* Same as STAMR3Register except that the name is specified in a
412	* RTStrPrintf like fashion.
413	*
414	* @returns VBox status.
415	* @param pVM Pointer to the VM.
416	* @param pvSample Pointer to the sample.
417	* @param enmType Sample type. This indicates what pvSample is pointing at.
418	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
419	* @param enmUnit Sample unit.
420	* @param pszDesc Sample description.
421	* @param pszName The sample name format string.
422	* @param ... Arguments to the format string.
423	*/
424	VMMR3DECL(int) STAMR3RegisterF(PVM pVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
425	const char pszDesc, const char pszName, ...)
426	{
427	va_list args;
428	va_start(args, pszName);
429	int rc = STAMR3RegisterVU(pVM->pUVM, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName, args);
430	va_end(args);
431	return rc;
432	}
433
434
435	/**
436	* Same as STAMR3Register except that the name is specified in a
437	* RTStrPrintfV like fashion.
438	*
439	* @returns VBox status.
440	* @param pVM Pointer to the VM.
441	* @param pvSample Pointer to the sample.
442	* @param enmType Sample type. This indicates what pvSample is pointing at.
443	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
444	* @param enmUnit Sample unit.
445	* @param pszDesc Sample description.
446	* @param pszName The sample name format string.
447	* @param args Arguments to the format string.
448	*/
449	VMMR3DECL(int) STAMR3RegisterVU(PUVM pUVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
450	const char pszDesc, const char pszName, va_list args)
451	{
452	AssertReturn(enmType != STAMTYPE_CALLBACK, VERR_INVALID_PARAMETER);
453
454	char *pszFormattedName;
455	RTStrAPrintfV(&pszFormattedName, pszName, args);
456	if (!pszFormattedName)
457	return VERR_NO_MEMORY;
458
459	int rc = STAMR3RegisterU(pUVM, pvSample, enmType, enmVisibility, pszFormattedName, enmUnit, pszDesc);
460	RTStrFree(pszFormattedName);
461	return rc;
462	}
463
464
465	/**
466	* Same as STAMR3Register except that the name is specified in a
467	* RTStrPrintfV like fashion.
468	*
469	* @returns VBox status.
470	* @param pVM Pointer to the VM.
471	* @param pvSample Pointer to the sample.
472	* @param enmType Sample type. This indicates what pvSample is pointing at.
473	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
474	* @param enmUnit Sample unit.
475	* @param pszDesc Sample description.
476	* @param pszName The sample name format string.
477	* @param args Arguments to the format string.
478	*/
479	VMMR3DECL(int) STAMR3RegisterV(PVM pVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
480	const char pszDesc, const char pszName, va_list args)
481	{
482	return STAMR3RegisterVU(pVM->pUVM, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName, args);
483	}
484
485
486	/**
487	* Similar to STAMR3Register except for the two callbacks, the implied type (STAMTYPE_CALLBACK),
488	* and name given in an RTStrPrintf like fashion.
489	*
490	* @returns VBox status.
491	* @param pVM Pointer to the VM.
492	* @param pvSample Pointer to the sample.
493	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
494	* @param enmUnit Sample unit.
495	* @param pfnReset Callback for resetting the sample. NULL should be used if the sample can't be reset.
496	* @param pfnPrint Print the sample.
497	* @param pszDesc Sample description.
498	* @param pszName The sample name format string.
499	* @param ... Arguments to the format string.
500	* @remark There is currently no device or driver variant of this API. Add one if it should become necessary!
501	*/
502	VMMR3DECL(int) STAMR3RegisterCallback(PVM pVM, void *pvSample, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
503	PFNSTAMR3CALLBACKRESET pfnReset, PFNSTAMR3CALLBACKPRINT pfnPrint,
504	const char pszDesc, const char pszName, ...)
505	{
506	va_list args;
507	va_start(args, pszName);
508	int rc = STAMR3RegisterCallbackV(pVM, pvSample, enmVisibility, enmUnit, pfnReset, pfnPrint, pszDesc, pszName, args);
509	va_end(args);
510	return rc;
511	}
512
513
514	/**
515	* Same as STAMR3RegisterCallback() except for the ellipsis which is a va_list here.
516	*
517	* @returns VBox status.
518	* @param pVM Pointer to the VM.
519	* @param pvSample Pointer to the sample.
520	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
521	* @param enmUnit Sample unit.
522	* @param pfnReset Callback for resetting the sample. NULL should be used if the sample can't be reset.
523	* @param pfnPrint Print the sample.
524	* @param pszDesc Sample description.
525	* @param pszName The sample name format string.
526	* @param args Arguments to the format string.
527	* @remark There is currently no device or driver variant of this API. Add one if it should become necessary!
528	*/
529	VMMR3DECL(int) STAMR3RegisterCallbackV(PVM pVM, void *pvSample, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
530	PFNSTAMR3CALLBACKRESET pfnReset, PFNSTAMR3CALLBACKPRINT pfnPrint,
531	const char pszDesc, const char pszName, va_list args)
532	{
533	char *pszFormattedName;
534	RTStrAPrintfV(&pszFormattedName, pszName, args);
535	if (!pszFormattedName)
536	return VERR_NO_MEMORY;
537
538	int rc = stamR3RegisterU(pVM->pUVM, pvSample, pfnReset, pfnPrint, STAMTYPE_CALLBACK, enmVisibility, pszFormattedName, enmUnit, pszDesc);
539	RTStrFree(pszFormattedName);
540	return rc;
541	}
542
543
544	#ifdef VBOX_STRICT
545	/**
546	* Divide the strings into sub-strings using '/' as delimiter
547	* and then compare them in strcmp fashion.
548	*
549	* @returns Difference.
550	* @retval 0 if equal.
551	* @retval < 0 if psz1 is less than psz2.
552	* @retval > 0 if psz1 greater than psz2.
553	*
554	* @param psz1 The first string.
555	* @param psz2 The second string.
556	*/
557	static int stamR3SlashCompare(const char psz1, const char psz2)
558	{
559	for (;;)
560	{
561	unsigned int ch1 = *psz1++;
562	unsigned int ch2 = *psz2++;
563	if (ch1 != ch2)
564	{
565	/* slash is end-of-sub-string, so it trumps everything but '\0'. */
566	if (ch1 == '/')
567	return ch2 ? -1 : 1;
568	if (ch2 == '/')
569	return ch1 ? 1 : -1;
570	return ch1 - ch2;
571	}
572
573	/* done? */
574	if (ch1 == '\0')
575	return 0;
576	}
577	}
578	#endif /* VBOX_STRICT */
579
580
581	/**
582	* Internal worker for the different register calls.
583	*
584	* @returns VBox status.
585	* @param pUVM Pointer to the user mode VM structure.
586	* @param pvSample Pointer to the sample.
587	* @param pfnReset Callback for resetting the sample. NULL should be used if the sample can't be reset.
588	* @param pfnPrint Print the sample.
589	* @param enmType Sample type. This indicates what pvSample is pointing at.
590	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
591	* @param enmUnit Sample unit.
592	* @param pszDesc Sample description.
593	* @param pszName The sample name format string.
594	* @param args Arguments to the format string.
595	* @remark There is currently no device or driver variant of this API. Add one if it should become necessary!
596	*/
597	static int stamR3RegisterU(PUVM pUVM, void *pvSample, PFNSTAMR3CALLBACKRESET pfnReset, PFNSTAMR3CALLBACKPRINT pfnPrint,
598	STAMTYPE enmType, STAMVISIBILITY enmVisibility, const char pszName, STAMUNIT enmUnit, const char pszDesc)
599	{
600	STAM_LOCK_WR(pUVM);
601
602	/*
603	* Check if exists.
604	*/
605	PSTAMDESC pPrev = NULL;
606	PSTAMDESC pCur = pUVM->stam.s.pHead;
607	while (pCur)
608	{
609	int iDiff = strcmp(pCur->pszName, pszName);
610	/* passed it */
611	if (iDiff > 0)
612	break;
613	/* found it. */
614	if (!iDiff)
615	{
616	STAM_UNLOCK_WR(pUVM);
617	AssertMsgFailed(("Duplicate sample name: %s\n", pszName));
618	return VERR_ALREADY_EXISTS;
619	}
620
621	/* next */
622	pPrev = pCur;
623	pCur = pCur->pNext;
624	}
625
626	/*
627	* Check that the name doesn't screw up sorting order when taking
628	* slashes into account. The QT4 GUI makes some assumptions.
629	* Problematic chars are: !"#$%&'()*+,-.
630	*/
631	Assert(pszName[0] == '/');
632	if (pPrev)
633	Assert(stamR3SlashCompare(pPrev->pszName, pszName) < 0);
634	if (pCur)
635	Assert(stamR3SlashCompare(pCur->pszName, pszName) > 0);
636
637	#ifdef VBOX_STRICT
638	/*
639	* Check alignment requirements.
640	*/
641	switch (enmType)
642	{
643	/* 8 byte / 64-bit */
644	case STAMTYPE_U64:
645	case STAMTYPE_U64_RESET:
646	case STAMTYPE_X64:
647	case STAMTYPE_X64_RESET:
648	case STAMTYPE_COUNTER:
649	case STAMTYPE_PROFILE:
650	case STAMTYPE_PROFILE_ADV:
651	AssertMsg(!((uintptr_t)pvSample & 7), ("%p - %s\n", pvSample, pszName));
652	break;
653
654	/* 4 byte / 32-bit */
655	case STAMTYPE_RATIO_U32:
656	case STAMTYPE_RATIO_U32_RESET:
657	case STAMTYPE_U32:
658	case STAMTYPE_U32_RESET:
659	case STAMTYPE_X32:
660	case STAMTYPE_X32_RESET:
661	AssertMsg(!((uintptr_t)pvSample & 3), ("%p - %s\n", pvSample, pszName));
662	break;
663
664	/* 2 byte / 32-bit */
665	case STAMTYPE_U16:
666	case STAMTYPE_U16_RESET:
667	case STAMTYPE_X16:
668	case STAMTYPE_X16_RESET:
669	AssertMsg(!((uintptr_t)pvSample & 1), ("%p - %s\n", pvSample, pszName));
670	break;
671
672	/* 1 byte / 8-bit / unaligned */
673	case STAMTYPE_U8:
674	case STAMTYPE_U8_RESET:
675	case STAMTYPE_X8:
676	case STAMTYPE_X8_RESET:
677	case STAMTYPE_BOOL:
678	case STAMTYPE_BOOL_RESET:
679	case STAMTYPE_CALLBACK:
680	break;
681
682	default:
683	AssertMsgFailed(("%d\n", enmType));
684	break;
685	}
686	#endif /* VBOX_STRICT */
687
688	/*
689	* Create a new node and insert it at the current location.
690	*/
691	int rc;
692	size_t cchName = strlen(pszName) + 1;
693	size_t cchDesc = pszDesc ? strlen(pszDesc) + 1 : 0;
694	PSTAMDESC pNew = (PSTAMDESC)RTMemAlloc(sizeof(*pNew) + cchName + cchDesc);
695	if (pNew)
696	{
697	pNew->pszName = (char )memcpy((char )(pNew + 1), pszName, cchName);
698	pNew->enmType = enmType;
699	pNew->enmVisibility = enmVisibility;
700	if (enmType != STAMTYPE_CALLBACK)
701	pNew->u.pv = pvSample;
702	else
703	{
704	pNew->u.Callback.pvSample = pvSample;
705	pNew->u.Callback.pfnReset = pfnReset;
706	pNew->u.Callback.pfnPrint = pfnPrint;
707	}
708	pNew->enmUnit = enmUnit;
709	pNew->pszDesc = NULL;
710	if (pszDesc)
711	pNew->pszDesc = (char )memcpy((char )(pNew + 1) + cchName, pszDesc, cchDesc);
712
713	pNew->pNext = pCur;
714	if (pPrev)
715	pPrev->pNext = pNew;
716	else
717	pUVM->stam.s.pHead = pNew;
718
719	stamR3ResetOne(pNew, pUVM->pVM);
720	rc = VINF_SUCCESS;
721	}
722	else
723	rc = VERR_NO_MEMORY;
724
725	STAM_UNLOCK_WR(pUVM);
726	return rc;
727	}
728
729
730	/**
731	* Deregisters a sample previously registered by STAR3Register().
732	*
733	* This is intended used for devices which can be unplugged and for
734	* temporary samples.
735	*
736	* @returns VBox status.
737	* @param pUVM Pointer to the user mode VM structure.
738	* @param pvSample Pointer to the sample registered with STAMR3Register().
739	*/
740	VMMR3DECL(int) STAMR3DeregisterU(PUVM pUVM, void *pvSample)
741	{
742	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
743
744	STAM_LOCK_WR(pUVM);
745
746	/*
747	* Search for it.
748	*/
749	int rc = VERR_INVALID_HANDLE;
750	PSTAMDESC pPrev = NULL;
751	PSTAMDESC pCur = pUVM->stam.s.pHead;
752	while (pCur)
753	{
754	if (pCur->u.pv == pvSample)
755	{
756	void *pvFree = pCur;
757	pCur = pCur->pNext;
758	if (pPrev)
759	pPrev->pNext = pCur;
760	else
761	pUVM->stam.s.pHead = pCur;
762
763	RTMemFree(pvFree);
764	rc = VINF_SUCCESS;
765	continue;
766	}
767
768	/* next */
769	pPrev = pCur;
770	pCur = pCur->pNext;
771	}
772
773	STAM_UNLOCK_WR(pUVM);
774	return rc;
775	}
776
777
778	/**
779	* Deregisters a sample previously registered by STAR3Register().
780	*
781	* This is intended used for devices which can be unplugged and for
782	* temporary samples.
783	*
784	* @returns VBox status.
785	* @param pVM Pointer to the VM.
786	* @param pvSample Pointer to the sample registered with STAMR3Register().
787	*/
788	VMMR3DECL(int) STAMR3Deregister(PVM pVM, void *pvSample)
789	{
790	return STAMR3DeregisterU(pVM->pUVM, pvSample);
791	}
792
793
794	/**
795	* Resets statistics for the specified VM.
796	* It's possible to select a subset of the samples.
797	*
798	* @returns VBox status. (Basically, it cannot fail.)
799	* @param pUVM The user mode VM handle.
800	* @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
801	* If NULL all samples are reset.
802	* @remarks Don't confuse this with the other 'XYZR3Reset' methods, it's not called at VM reset.
803	*/
804	VMMR3DECL(int) STAMR3Reset(PUVM pUVM, const char *pszPat)
805	{
806	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
807	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
808
809	int rc = VINF_SUCCESS;
810
811	/* ring-0 */
812	GVMMRESETSTATISTICSSREQ GVMMReq;
813	GMMRESETSTATISTICSSREQ GMMReq;
814	bool fGVMMMatched = !pszPat \|\| !*pszPat;
815	bool fGMMMatched = fGVMMMatched;
816	if (fGVMMMatched)
817	{
818	memset(&GVMMReq.Stats, 0xff, sizeof(GVMMReq.Stats));
819	memset(&GMMReq.Stats, 0xff, sizeof(GMMReq.Stats));
820	}
821	else
822	{
823	char *pszCopy;
824	unsigned cExpressions;
825	char **papszExpressions = stamR3SplitPattern(pszPat, &cExpressions, &pszCopy);
826	if (!papszExpressions)
827	return VERR_NO_MEMORY;
828
829	/* GVMM */
830	RT_ZERO(GVMMReq.Stats);
831	for (unsigned i = 0; i < RT_ELEMENTS(g_aGVMMStats); i++)
832	if (stamR3MultiMatch(papszExpressions, cExpressions, NULL, g_aGVMMStats[i].pszName))
833	{
834	((uint8_t )&GVMMReq.Stats + g_aGVMMStats[i].offVar) = 0xff;
835	fGVMMMatched = true;
836	}
837	if (!fGVMMMatched)
838	{
839	/** @todo match cpu leaves some rainy day. */
840	}
841
842	/* GMM */
843	RT_ZERO(GMMReq.Stats);
844	for (unsigned i = 0; i < RT_ELEMENTS(g_aGMMStats); i++)
845	if (stamR3MultiMatch(papszExpressions, cExpressions, NULL, g_aGMMStats[i].pszName))
846	{
847	((uint8_t )&GMMReq.Stats + g_aGMMStats[i].offVar) = 0xff;
848	fGMMMatched = true;
849	}
850
851	RTMemTmpFree(papszExpressions);
852	RTStrFree(pszCopy);
853	}
854
855	STAM_LOCK_WR(pUVM);
856
857	if (fGVMMMatched)
858	{
859	PVM pVM = pUVM->pVM;
860	GVMMReq.Hdr.cbReq = sizeof(GVMMReq);
861	GVMMReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
862	GVMMReq.pSession = pVM->pSession;
863	rc = SUPR3CallVMMR0Ex(pVM->pVMR0, NIL_VMCPUID, VMMR0_DO_GVMM_RESET_STATISTICS, 0, &GVMMReq.Hdr);
864	}
865
866	if (fGMMMatched)
867	{
868	PVM pVM = pUVM->pVM;
869	GMMReq.Hdr.cbReq = sizeof(GMMReq);
870	GMMReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
871	GMMReq.pSession = pVM->pSession;
872	rc = SUPR3CallVMMR0Ex(pVM->pVMR0, NIL_VMCPUID, VMMR0_DO_GMM_RESET_STATISTICS, 0, &GMMReq.Hdr);
873	}
874
875	/* and the reset */
876	stamR3EnumU(pUVM, pszPat, false /* fUpdateRing0 */, stamR3ResetOne, pUVM->pVM);
877
878	STAM_UNLOCK_WR(pUVM);
879	return rc;
880	}
881
882
883	/**
884	* Resets one statistics sample.
885	* Callback for stamR3EnumU().
886	*
887	* @returns VINF_SUCCESS
888	* @param pDesc Pointer to the current descriptor.
889	* @param pvArg User argument - Pointer to the VM.
890	*/
891	static int stamR3ResetOne(PSTAMDESC pDesc, void *pvArg)
892	{
893	switch (pDesc->enmType)
894	{
895	case STAMTYPE_COUNTER:
896	ASMAtomicXchgU64(&pDesc->u.pCounter->c, 0);
897	break;
898
899	case STAMTYPE_PROFILE:
900	case STAMTYPE_PROFILE_ADV:
901	ASMAtomicXchgU64(&pDesc->u.pProfile->cPeriods, 0);
902	ASMAtomicXchgU64(&pDesc->u.pProfile->cTicks, 0);
903	ASMAtomicXchgU64(&pDesc->u.pProfile->cTicksMax, 0);
904	ASMAtomicXchgU64(&pDesc->u.pProfile->cTicksMin, ~0);
905	break;
906
907	case STAMTYPE_RATIO_U32_RESET:
908	ASMAtomicXchgU32(&pDesc->u.pRatioU32->u32A, 0);
909	ASMAtomicXchgU32(&pDesc->u.pRatioU32->u32B, 0);
910	break;
911
912	case STAMTYPE_CALLBACK:
913	if (pDesc->u.Callback.pfnReset)
914	pDesc->u.Callback.pfnReset((PVM)pvArg, pDesc->u.Callback.pvSample);
915	break;
916
917	case STAMTYPE_U8_RESET:
918	case STAMTYPE_X8_RESET:
919	ASMAtomicXchgU8(pDesc->u.pu8, 0);
920	break;
921
922	case STAMTYPE_U16_RESET:
923	case STAMTYPE_X16_RESET:
924	ASMAtomicXchgU16(pDesc->u.pu16, 0);
925	break;
926
927	case STAMTYPE_U32_RESET:
928	case STAMTYPE_X32_RESET:
929	ASMAtomicXchgU32(pDesc->u.pu32, 0);
930	break;
931
932	case STAMTYPE_U64_RESET:
933	case STAMTYPE_X64_RESET:
934	ASMAtomicXchgU64(pDesc->u.pu64, 0);
935	break;
936
937	case STAMTYPE_BOOL_RESET:
938	ASMAtomicXchgBool(pDesc->u.pf, false);
939	break;
940
941	/* These are custom and will not be touched. */
942	case STAMTYPE_U8:
943	case STAMTYPE_X8:
944	case STAMTYPE_U16:
945	case STAMTYPE_X16:
946	case STAMTYPE_U32:
947	case STAMTYPE_X32:
948	case STAMTYPE_U64:
949	case STAMTYPE_X64:
950	case STAMTYPE_RATIO_U32:
951	case STAMTYPE_BOOL:
952	break;
953
954	default:
955	AssertMsgFailed(("enmType=%d\n", pDesc->enmType));
956	break;
957	}
958	NOREF(pvArg);
959	return VINF_SUCCESS;
960	}
961
962
963	/**
964	* Get a snapshot of the statistics.
965	* It's possible to select a subset of the samples.
966	*
967	* @returns VBox status. (Basically, it cannot fail.)
968	* @param pUVM The user mode VM handle.
969	* @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
970	* If NULL all samples are reset.
971	* @param fWithDesc Whether to include the descriptions.
972	* @param ppszSnapshot Where to store the pointer to the snapshot data.
973	* The format of the snapshot should be XML, but that will have to be discussed
974	* when this function is implemented.
975	* The returned pointer must be freed by calling STAMR3SnapshotFree().
976	* @param pcchSnapshot Where to store the size of the snapshot data. (Excluding the trailing '\0')
977	*/
978	VMMR3DECL(int) STAMR3Snapshot(PUVM pUVM, const char pszPat, char ppszSnapshot, size_t pcchSnapshot, bool fWithDesc)
979	{
980	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
981	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
982
983	STAMR3SNAPSHOTONE State = { NULL, NULL, NULL, pUVM->pVM, 0, VINF_SUCCESS, fWithDesc };
984
985	/*
986	* Write the XML header.
987	*/
988	/** @todo Make this proper & valid XML. */
989	stamR3SnapshotPrintf(&State, "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n");
990
991	/*
992	* Write the content.
993	*/
994	stamR3SnapshotPrintf(&State, "<Statistics>\n");
995	int rc = stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3SnapshotOne, &State);
996	stamR3SnapshotPrintf(&State, "</Statistics>\n");
997
998	if (RT_SUCCESS(rc))
999	rc = State.rc;
1000	else
1001	{
1002	RTMemFree(State.pszStart);
1003	State.pszStart = State.pszEnd = State.psz = NULL;
1004	State.cbAllocated = 0;
1005	}
1006
1007	/*
1008	* Done.
1009	*/
1010	*ppszSnapshot = State.pszStart;
1011	if (pcchSnapshot)
1012	*pcchSnapshot = State.psz - State.pszStart;
1013	return rc;
1014	}
1015
1016
1017	/**
1018	* stamR3EnumU callback employed by STAMR3Snapshot.
1019	*
1020	* @returns VBox status code, but it's interpreted as 0 == success / !0 == failure by enmR3Enum.
1021	* @param pDesc The sample.
1022	* @param pvArg The snapshot status structure.
1023	*/
1024	static int stamR3SnapshotOne(PSTAMDESC pDesc, void *pvArg)
1025	{
1026	PSTAMR3SNAPSHOTONE pThis = (PSTAMR3SNAPSHOTONE)pvArg;
1027
1028	switch (pDesc->enmType)
1029	{
1030	case STAMTYPE_COUNTER:
1031	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pDesc->u.pCounter->c == 0)
1032	return VINF_SUCCESS;
1033	stamR3SnapshotPrintf(pThis, "<Counter c=\"%lld\"", pDesc->u.pCounter->c);
1034	break;
1035
1036	case STAMTYPE_PROFILE:
1037	case STAMTYPE_PROFILE_ADV:
1038	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pDesc->u.pProfile->cPeriods == 0)
1039	return VINF_SUCCESS;
1040	stamR3SnapshotPrintf(pThis, "<Profile cPeriods=\"%lld\" cTicks=\"%lld\" cTicksMin=\"%lld\" cTicksMax=\"%lld\"",
1041	pDesc->u.pProfile->cPeriods, pDesc->u.pProfile->cTicks, pDesc->u.pProfile->cTicksMin,
1042	pDesc->u.pProfile->cTicksMax);
1043	break;
1044
1045	case STAMTYPE_RATIO_U32:
1046	case STAMTYPE_RATIO_U32_RESET:
1047	if (pDesc->enmVisibility == STAMVISIBILITY_USED && !pDesc->u.pRatioU32->u32A && !pDesc->u.pRatioU32->u32B)
1048	return VINF_SUCCESS;
1049	stamR3SnapshotPrintf(pThis, "<Ratio32 u32A=\"%lld\" u32B=\"%lld\"",
1050	pDesc->u.pRatioU32->u32A, pDesc->u.pRatioU32->u32B);
1051	break;
1052
1053	case STAMTYPE_CALLBACK:
1054	{
1055	char szBuf[512];
1056	pDesc->u.Callback.pfnPrint(pThis->pVM, pDesc->u.Callback.pvSample, szBuf, sizeof(szBuf));
1057	stamR3SnapshotPrintf(pThis, "<Callback val=\"%s\"", szBuf);
1058	break;
1059	}
1060
1061	case STAMTYPE_U8:
1062	case STAMTYPE_U8_RESET:
1063	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu8 == 0)
1064	return VINF_SUCCESS;
1065	stamR3SnapshotPrintf(pThis, "<U8 val=\"%u\"", *pDesc->u.pu8);
1066	break;
1067
1068	case STAMTYPE_X8:
1069	case STAMTYPE_X8_RESET:
1070	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu8 == 0)
1071	return VINF_SUCCESS;
1072	stamR3SnapshotPrintf(pThis, "<X8 val=\"%#x\"", *pDesc->u.pu8);
1073	break;
1074
1075	case STAMTYPE_U16:
1076	case STAMTYPE_U16_RESET:
1077	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu16 == 0)
1078	return VINF_SUCCESS;
1079	stamR3SnapshotPrintf(pThis, "<U16 val=\"%u\"", *pDesc->u.pu16);
1080	break;
1081
1082	case STAMTYPE_X16:
1083	case STAMTYPE_X16_RESET:
1084	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu16 == 0)
1085	return VINF_SUCCESS;
1086	stamR3SnapshotPrintf(pThis, "<X16 val=\"%#x\"", *pDesc->u.pu16);
1087	break;
1088
1089	case STAMTYPE_U32:
1090	case STAMTYPE_U32_RESET:
1091	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu32 == 0)
1092	return VINF_SUCCESS;
1093	stamR3SnapshotPrintf(pThis, "<U32 val=\"%u\"", *pDesc->u.pu32);
1094	break;
1095
1096	case STAMTYPE_X32:
1097	case STAMTYPE_X32_RESET:
1098	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu32 == 0)
1099	return VINF_SUCCESS;
1100	stamR3SnapshotPrintf(pThis, "<X32 val=\"%#x\"", *pDesc->u.pu32);
1101	break;
1102
1103	case STAMTYPE_U64:
1104	case STAMTYPE_U64_RESET:
1105	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu64 == 0)
1106	return VINF_SUCCESS;
1107	stamR3SnapshotPrintf(pThis, "<U64 val=\"%llu\"", *pDesc->u.pu64);
1108	break;
1109
1110	case STAMTYPE_X64:
1111	case STAMTYPE_X64_RESET:
1112	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu64 == 0)
1113	return VINF_SUCCESS;
1114	stamR3SnapshotPrintf(pThis, "<X64 val=\"%#llx\"", *pDesc->u.pu64);
1115	break;
1116
1117	case STAMTYPE_BOOL:
1118	case STAMTYPE_BOOL_RESET:
1119	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pf == false)
1120	return VINF_SUCCESS;
1121	stamR3SnapshotPrintf(pThis, "<BOOL val=\"%RTbool\"", *pDesc->u.pf);
1122	break;
1123
1124	default:
1125	AssertMsgFailed(("%d\n", pDesc->enmType));
1126	return 0;
1127	}
1128
1129	stamR3SnapshotPrintf(pThis, " unit=\"%s\"", STAMR3GetUnit(pDesc->enmUnit));
1130
1131	switch (pDesc->enmVisibility)
1132	{
1133	default:
1134	case STAMVISIBILITY_ALWAYS:
1135	break;
1136	case STAMVISIBILITY_USED:
1137	stamR3SnapshotPrintf(pThis, " vis=\"used\"");
1138	break;
1139	case STAMVISIBILITY_NOT_GUI:
1140	stamR3SnapshotPrintf(pThis, " vis=\"not-gui\"");
1141	break;
1142	}
1143
1144	stamR3SnapshotPrintf(pThis, " name=\"%s\"", pDesc->pszName);
1145
1146	if (pThis->fWithDesc && pDesc->pszDesc)
1147	{
1148	/*
1149	* The description is a bit tricky as it may include chars that
1150	* xml requires to be escaped.
1151	*/
1152	const char *pszBadChar = strpbrk(pDesc->pszDesc, "&<>\"'");
1153	if (!pszBadChar)
1154	return stamR3SnapshotPrintf(pThis, " desc=\"%s\"/>\n", pDesc->pszDesc);
1155
1156	stamR3SnapshotPrintf(pThis, " desc=\"");
1157	const char *pszCur = pDesc->pszDesc;
1158	do
1159	{
1160	stamR3SnapshotPrintf(pThis, "%.*s", pszBadChar - pszCur, pszCur);
1161	switch (*pszBadChar)
1162	{
1163	case '&': stamR3SnapshotPrintf(pThis, "&"); break;
1164	case '<': stamR3SnapshotPrintf(pThis, "<"); break;
1165	case '>': stamR3SnapshotPrintf(pThis, ">"); break;
1166	case '"': stamR3SnapshotPrintf(pThis, """); break;
1167	case '\'': stamR3SnapshotPrintf(pThis, "'"); break;
1168	default: AssertMsgFailed(("%c", *pszBadChar)); break;
1169	}
1170	pszCur = pszBadChar + 1;
1171	pszBadChar = strpbrk(pszCur, "&<>\"'");
1172	} while (pszBadChar);
1173	return stamR3SnapshotPrintf(pThis, "%s\"/>\n", pszCur);
1174	}
1175	return stamR3SnapshotPrintf(pThis, "/>\n");
1176	}
1177
1178
1179	/**
1180	* Output callback for stamR3SnapshotPrintf.
1181	*
1182	* @returns number of bytes written.
1183	* @param pvArg The snapshot status structure.
1184	* @param pach Pointer to an array of characters (bytes).
1185	* @param cch The number or chars (bytes) to write from the array.
1186	*/
1187	static DECLCALLBACK(size_t) stamR3SnapshotOutput(void pvArg, const char pach, size_t cch)
1188	{
1189	PSTAMR3SNAPSHOTONE pThis = (PSTAMR3SNAPSHOTONE)pvArg;
1190
1191	/*
1192	* Make sure we've got space for it.
1193	*/
1194	if (RT_UNLIKELY((uintptr_t)pThis->pszEnd - (uintptr_t)pThis->psz < cch + 1))
1195	{
1196	if (RT_FAILURE(pThis->rc))
1197	return 0;
1198
1199	size_t cbNewSize = pThis->cbAllocated;
1200	if (cbNewSize > cch)
1201	cbNewSize *= 2;
1202	else
1203	cbNewSize += RT_ALIGN(cch + 1, 0x1000);
1204	char pszNew = (char )RTMemRealloc(pThis->pszStart, cbNewSize);
1205	if (!pszNew)
1206	{
1207	/*
1208	* Free up immediately, out-of-memory is bad news and this
1209	* isn't an important allocations / API.
1210	*/
1211	pThis->rc = VERR_NO_MEMORY;
1212	RTMemFree(pThis->pszStart);
1213	pThis->pszStart = pThis->pszEnd = pThis->psz = NULL;
1214	pThis->cbAllocated = 0;
1215	return 0;
1216	}
1217
1218	pThis->psz = pszNew + (pThis->psz - pThis->pszStart);
1219	pThis->pszStart = pszNew;
1220	pThis->pszEnd = pszNew + cbNewSize;
1221	pThis->cbAllocated = cbNewSize;
1222	}
1223
1224	/*
1225	* Copy the chars to the buffer and terminate it.
1226	*/
1227	memcpy(pThis->psz, pach, cch);
1228	pThis->psz += cch;
1229	*pThis->psz = '\0';
1230	return cch;
1231	}
1232
1233
1234	/**
1235	* Wrapper around RTStrFormatV for use by the snapshot API.
1236	*
1237	* @returns VBox status code.
1238	* @param pThis The snapshot status structure.
1239	* @param pszFormat The format string.
1240	* @param ... Optional arguments.
1241	*/
1242	static int stamR3SnapshotPrintf(PSTAMR3SNAPSHOTONE pThis, const char *pszFormat, ...)
1243	{
1244	va_list va;
1245	va_start(va, pszFormat);
1246	RTStrFormatV(stamR3SnapshotOutput, pThis, NULL, NULL, pszFormat, va);
1247	va_end(va);
1248	return pThis->rc;
1249	}
1250
1251
1252	/**
1253	* Releases a statistics snapshot returned by STAMR3Snapshot().
1254	*
1255	* @returns VBox status.
1256	* @param pUVM The user mode VM handle.
1257	* @param pszSnapshot The snapshot data pointer returned by STAMR3Snapshot().
1258	* NULL is allowed.
1259	*/
1260	VMMR3DECL(int) STAMR3SnapshotFree(PUVM pUVM, char *pszSnapshot)
1261	{
1262	if (!pszSnapshot)
1263	RTMemFree(pszSnapshot);
1264	NOREF(pUVM);
1265	return VINF_SUCCESS;
1266	}
1267
1268
1269	/**
1270	* Dumps the selected statistics to the log.
1271	*
1272	* @returns VBox status.
1273	* @param pUVM Pointer to the user mode VM structure.
1274	* @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
1275	* If NULL all samples are written to the log.
1276	*/
1277	VMMR3DECL(int) STAMR3Dump(PUVM pUVM, const char *pszPat)
1278	{
1279	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1280	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
1281
1282	STAMR3PRINTONEARGS Args;
1283	Args.pUVM = pUVM;
1284	Args.pvArg = NULL;
1285	Args.pfnPrintf = stamR3EnumLogPrintf;
1286
1287	stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3PrintOne, &Args);
1288	return VINF_SUCCESS;
1289	}
1290
1291
1292	/**
1293	* Prints to the log.
1294	*
1295	* @param pArgs Pointer to the print one argument structure.
1296	* @param pszFormat Format string.
1297	* @param ... Format arguments.
1298	*/
1299	static DECLCALLBACK(void) stamR3EnumLogPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...)
1300	{
1301	va_list va;
1302	va_start(va, pszFormat);
1303	RTLogPrintfV(pszFormat, va);
1304	va_end(va);
1305	NOREF(pArgs);
1306	}
1307
1308
1309	/**
1310	* Dumps the selected statistics to the release log.
1311	*
1312	* @returns VBox status.
1313	* @param pUVM Pointer to the user mode VM structure.
1314	* @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
1315	* If NULL all samples are written to the log.
1316	*/
1317	VMMR3DECL(int) STAMR3DumpToReleaseLog(PUVM pUVM, const char *pszPat)
1318	{
1319	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1320	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
1321
1322	STAMR3PRINTONEARGS Args;
1323	Args.pUVM = pUVM;
1324	Args.pvArg = NULL;
1325	Args.pfnPrintf = stamR3EnumRelLogPrintf;
1326
1327	stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3PrintOne, &Args);
1328	return VINF_SUCCESS;
1329	}
1330
1331	/**
1332	* Prints to the release log.
1333	*
1334	* @param pArgs Pointer to the print one argument structure.
1335	* @param pszFormat Format string.
1336	* @param ... Format arguments.
1337	*/
1338	static DECLCALLBACK(void) stamR3EnumRelLogPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...)
1339	{
1340	va_list va;
1341	va_start(va, pszFormat);
1342	RTLogRelPrintfV(pszFormat, va);
1343	va_end(va);
1344	NOREF(pArgs);
1345	}
1346
1347
1348	/**
1349	* Prints the selected statistics to standard out.
1350	*
1351	* @returns VBox status.
1352	* @param pUVM The user mode VM handle.
1353	* @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
1354	* If NULL all samples are reset.
1355	*/
1356	VMMR3DECL(int) STAMR3Print(PUVM pUVM, const char *pszPat)
1357	{
1358	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1359	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
1360
1361	STAMR3PRINTONEARGS Args;
1362	Args.pUVM = pUVM;
1363	Args.pvArg = NULL;
1364	Args.pfnPrintf = stamR3EnumPrintf;
1365
1366	stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3PrintOne, &Args);
1367	return VINF_SUCCESS;
1368	}
1369
1370
1371	/**
1372	* Prints to stdout.
1373	*
1374	* @param pArgs Pointer to the print one argument structure.
1375	* @param pszFormat Format string.
1376	* @param ... Format arguments.
1377	*/
1378	static DECLCALLBACK(void) stamR3EnumPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...)
1379	{
1380	va_list va;
1381	va_start(va, pszFormat);
1382	RTPrintfV(pszFormat, va);
1383	va_end(va);
1384	NOREF(pArgs);
1385	}
1386
1387
1388	/**
1389	* Prints one sample.
1390	* Callback for stamR3EnumU().
1391	*
1392	* @returns VINF_SUCCESS
1393	* @param pDesc Pointer to the current descriptor.
1394	* @param pvArg User argument - STAMR3PRINTONEARGS.
1395	*/
1396	static int stamR3PrintOne(PSTAMDESC pDesc, void *pvArg)
1397	{
1398	PSTAMR3PRINTONEARGS pArgs = (PSTAMR3PRINTONEARGS)pvArg;
1399
1400	switch (pDesc->enmType)
1401	{
1402	case STAMTYPE_COUNTER:
1403	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pDesc->u.pCounter->c == 0)
1404	return VINF_SUCCESS;
1405
1406	pArgs->pfnPrintf(pArgs, "%-32s %8llu %s\n", pDesc->pszName, pDesc->u.pCounter->c, STAMR3GetUnit(pDesc->enmUnit));
1407	break;
1408
1409	case STAMTYPE_PROFILE:
1410	case STAMTYPE_PROFILE_ADV:
1411	{
1412	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pDesc->u.pProfile->cPeriods == 0)
1413	return VINF_SUCCESS;
1414
1415	uint64_t u64 = pDesc->u.pProfile->cPeriods ? pDesc->u.pProfile->cPeriods : 1;
1416	pArgs->pfnPrintf(pArgs, "%-32s %8llu %s (%12llu ticks, %7llu times, max %9llu, min %7lld)\n", pDesc->pszName,
1417	pDesc->u.pProfile->cTicks / u64, STAMR3GetUnit(pDesc->enmUnit),
1418	pDesc->u.pProfile->cTicks, pDesc->u.pProfile->cPeriods, pDesc->u.pProfile->cTicksMax, pDesc->u.pProfile->cTicksMin);
1419	break;
1420	}
1421
1422	case STAMTYPE_RATIO_U32:
1423	case STAMTYPE_RATIO_U32_RESET:
1424	if (pDesc->enmVisibility == STAMVISIBILITY_USED && !pDesc->u.pRatioU32->u32A && !pDesc->u.pRatioU32->u32B)
1425	return VINF_SUCCESS;
1426	pArgs->pfnPrintf(pArgs, "%-32s %8u:%-8u %s\n", pDesc->pszName,
1427	pDesc->u.pRatioU32->u32A, pDesc->u.pRatioU32->u32B, STAMR3GetUnit(pDesc->enmUnit));
1428	break;
1429
1430	case STAMTYPE_CALLBACK:
1431	{
1432	char szBuf[512];
1433	pDesc->u.Callback.pfnPrint(pArgs->pUVM->pVM, pDesc->u.Callback.pvSample, szBuf, sizeof(szBuf));
1434	pArgs->pfnPrintf(pArgs, "%-32s %s %s\n", pDesc->pszName, szBuf, STAMR3GetUnit(pDesc->enmUnit));
1435	break;
1436	}
1437
1438	case STAMTYPE_U8:
1439	case STAMTYPE_U8_RESET:
1440	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu8 == 0)
1441	return VINF_SUCCESS;
1442	pArgs->pfnPrintf(pArgs, "%-32s %8u %s\n", pDesc->pszName, *pDesc->u.pu8, STAMR3GetUnit(pDesc->enmUnit));
1443	break;
1444
1445	case STAMTYPE_X8:
1446	case STAMTYPE_X8_RESET:
1447	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu8 == 0)
1448	return VINF_SUCCESS;
1449	pArgs->pfnPrintf(pArgs, "%-32s %8x %s\n", pDesc->pszName, *pDesc->u.pu8, STAMR3GetUnit(pDesc->enmUnit));
1450	break;
1451
1452	case STAMTYPE_U16:
1453	case STAMTYPE_U16_RESET:
1454	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu16 == 0)
1455	return VINF_SUCCESS;
1456	pArgs->pfnPrintf(pArgs, "%-32s %8u %s\n", pDesc->pszName, *pDesc->u.pu16, STAMR3GetUnit(pDesc->enmUnit));
1457	break;
1458
1459	case STAMTYPE_X16:
1460	case STAMTYPE_X16_RESET:
1461	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu16 == 0)
1462	return VINF_SUCCESS;
1463	pArgs->pfnPrintf(pArgs, "%-32s %8x %s\n", pDesc->pszName, *pDesc->u.pu16, STAMR3GetUnit(pDesc->enmUnit));
1464	break;
1465
1466	case STAMTYPE_U32:
1467	case STAMTYPE_U32_RESET:
1468	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu32 == 0)
1469	return VINF_SUCCESS;
1470	pArgs->pfnPrintf(pArgs, "%-32s %8u %s\n", pDesc->pszName, *pDesc->u.pu32, STAMR3GetUnit(pDesc->enmUnit));
1471	break;
1472
1473	case STAMTYPE_X32:
1474	case STAMTYPE_X32_RESET:
1475	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu32 == 0)
1476	return VINF_SUCCESS;
1477	pArgs->pfnPrintf(pArgs, "%-32s %8x %s\n", pDesc->pszName, *pDesc->u.pu32, STAMR3GetUnit(pDesc->enmUnit));
1478	break;
1479
1480	case STAMTYPE_U64:
1481	case STAMTYPE_U64_RESET:
1482	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu64 == 0)
1483	return VINF_SUCCESS;
1484	pArgs->pfnPrintf(pArgs, "%-32s %8llu %s\n", pDesc->pszName, *pDesc->u.pu64, STAMR3GetUnit(pDesc->enmUnit));
1485	break;
1486
1487	case STAMTYPE_X64:
1488	case STAMTYPE_X64_RESET:
1489	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu64 == 0)
1490	return VINF_SUCCESS;
1491	pArgs->pfnPrintf(pArgs, "%-32s %8llx %s\n", pDesc->pszName, *pDesc->u.pu64, STAMR3GetUnit(pDesc->enmUnit));
1492	break;
1493
1494	case STAMTYPE_BOOL:
1495	case STAMTYPE_BOOL_RESET:
1496	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pf == false)
1497	return VINF_SUCCESS;
1498	pArgs->pfnPrintf(pArgs, "%-32s %s %s\n", pDesc->pszName, *pDesc->u.pf ? "true " : "false ", STAMR3GetUnit(pDesc->enmUnit));
1499	break;
1500
1501	default:
1502	AssertMsgFailed(("enmType=%d\n", pDesc->enmType));
1503	break;
1504	}
1505	NOREF(pvArg);
1506	return VINF_SUCCESS;
1507	}
1508
1509
1510	/**
1511	* Enumerate the statistics by the means of a callback function.
1512	*
1513	* @returns Whatever the callback returns.
1514	*
1515	* @param pUVM The user mode VM handle.
1516	* @param pszPat The pattern to match samples.
1517	* @param pfnEnum The callback function.
1518	* @param pvUser The pvUser argument of the callback function.
1519	*/
1520	VMMR3DECL(int) STAMR3Enum(PUVM pUVM, const char pszPat, PFNSTAMR3ENUM pfnEnum, void pvUser)
1521	{
1522	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1523	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
1524
1525	STAMR3ENUMONEARGS Args;
1526	Args.pVM = pUVM->pVM;
1527	Args.pfnEnum = pfnEnum;
1528	Args.pvUser = pvUser;
1529
1530	return stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3EnumOne, &Args);
1531	}
1532
1533
1534	/**
1535	* Callback function for STARTR3Enum().
1536	*
1537	* @returns whatever the callback returns.
1538	* @param pDesc Pointer to the current descriptor.
1539	* @param pvArg Points to a STAMR3ENUMONEARGS structure.
1540	*/
1541	static int stamR3EnumOne(PSTAMDESC pDesc, void *pvArg)
1542	{
1543	PSTAMR3ENUMONEARGS pArgs = (PSTAMR3ENUMONEARGS)pvArg;
1544	int rc;
1545	if (pDesc->enmType == STAMTYPE_CALLBACK)
1546	{
1547	/* Give the enumerator something useful. */
1548	char szBuf[512];
1549	pDesc->u.Callback.pfnPrint(pArgs->pVM, pDesc->u.Callback.pvSample, szBuf, sizeof(szBuf));
1550	rc = pArgs->pfnEnum(pDesc->pszName, pDesc->enmType, szBuf, pDesc->enmUnit,
1551	pDesc->enmVisibility, pDesc->pszDesc, pArgs->pvUser);
1552	}
1553	else
1554	rc = pArgs->pfnEnum(pDesc->pszName, pDesc->enmType, pDesc->u.pv, pDesc->enmUnit,
1555	pDesc->enmVisibility, pDesc->pszDesc, pArgs->pvUser);
1556	return rc;
1557	}
1558
1559
1560	/**
1561	* Match a name against an array of patterns.
1562	*
1563	* @returns true if it matches, false if it doesn't match.
1564	* @param papszExpressions The array of pattern expressions.
1565	* @param cExpressions The number of array entries.
1566	* @param piExpression Where to read/store the current skip index. Optional.
1567	* @param pszName The name to match.
1568	*/
1569	static bool stamR3MultiMatch(const char * const *papszExpressions, unsigned cExpressions,
1570	unsigned piExpression, const char pszName)
1571	{
1572	for (unsigned i = piExpression ? *piExpression : 0; i < cExpressions; i++)
1573	{
1574	const char *pszPat = papszExpressions[i];
1575	if (RTStrSimplePatternMatch(pszPat, pszName))
1576	{
1577	/* later:
1578	if (piExpression && i > *piExpression)
1579	{
1580	check if we can skip some expressions
1581	}*/
1582	return true;
1583	}
1584	}
1585	return false;
1586	}
1587
1588
1589	/**
1590	* Splits a multi pattern into single ones.
1591	*
1592	* @returns Pointer to an array of single patterns. Free it with RTMemTmpFree.
1593	* @param pszPat The pattern to split.
1594	* @param pcExpressions The number of array elements.
1595	* @param pszCopy The pattern copy to free using RTStrFree.
1596	*/
1597	static char *stamR3SplitPattern(const char pszPat, unsigned pcExpressions, char *ppszCopy)
1598	{
1599	Assert(pszPat && *pszPat);
1600
1601	char *pszCopy = RTStrDup(pszPat);
1602	if (!pszCopy)
1603	return NULL;
1604
1605	/* count them & allocate array. */
1606	char *psz = pszCopy;
1607	unsigned cExpressions = 1;
1608	while ((psz = strchr(psz, '\|')) != NULL)
1609	cExpressions++, psz++;
1610
1611	char papszExpressions = (char )RTMemTmpAllocZ((cExpressions + 1) * sizeof(char *));
1612	if (!papszExpressions)
1613	{
1614	RTStrFree(pszCopy);
1615	return NULL;
1616	}
1617
1618	/* split */
1619	psz = pszCopy;
1620	for (unsigned i = 0;;)
1621	{
1622	papszExpressions[i] = psz;
1623	if (++i >= cExpressions)
1624	break;
1625	psz = strchr(psz, '\|');
1626	*psz++ = '\0';
1627	}
1628
1629	/* sort the array, putting '' last. /
1630	/** @todo sort it... */
1631
1632	*pcExpressions = cExpressions;
1633	*ppszCopy = pszCopy;
1634	return papszExpressions;
1635	}
1636
1637
1638	/**
1639	* Enumerates the nodes selected by a pattern or all nodes if no pattern
1640	* is specified.
1641	*
1642	* The call may lock STAM for writing before calling this function, however do
1643	* not lock it for reading as this function may need to write lock STAM.
1644	*
1645	* @returns The rc from the callback.
1646	* @param pUVM Pointer to the user mode VM structure.
1647	* @param pszPat Pattern.
1648	* @param fUpdateRing0 Update the ring-0 .
1649	* @param pfnCallback Callback function which shall be called for matching nodes.
1650	* If it returns anything but VINF_SUCCESS the enumeration is
1651	* terminated and the status code returned to the caller.
1652	* @param pvArg User parameter for the callback.
1653	*/
1654	static int stamR3EnumU(PUVM pUVM, const char *pszPat, bool fUpdateRing0,
1655	int (pfnCallback)(PSTAMDESC pDesc, void pvArg), void *pvArg)
1656	{
1657	int rc = VINF_SUCCESS;
1658
1659	/*
1660	* All
1661	*/
1662	if (!pszPat \|\| !pszPat \|\| !strcmp(pszPat, ""))
1663	{
1664	if (fUpdateRing0)
1665	stamR3Ring0StatsUpdateU(pUVM, "*");
1666
1667	STAM_LOCK_RD(pUVM);
1668	PSTAMDESC pCur = pUVM->stam.s.pHead;
1669	while (pCur)
1670	{
1671	rc = pfnCallback(pCur, pvArg);
1672	if (rc)
1673	break;
1674
1675	/* next */
1676	pCur = pCur->pNext;
1677	}
1678	STAM_UNLOCK_RD(pUVM);
1679	}
1680
1681	/*
1682	* Single expression pattern.
1683	*/
1684	else if (!strchr(pszPat, '\|'))
1685	{
1686	if (fUpdateRing0)
1687	stamR3Ring0StatsUpdateU(pUVM, pszPat);
1688
1689	STAM_LOCK_RD(pUVM);
1690	/** @todo This needs to be optimized since the GUI is using this path for the VM info dialog.
1691	* Note that it's doing exact matching. Organizing the samples in a tree would speed up thing
1692	* no end (at least for debug and profile builds). */
1693	for (PSTAMDESC pCur = pUVM->stam.s.pHead; pCur; pCur = pCur->pNext)
1694	if (RTStrSimplePatternMatch(pszPat, pCur->pszName))
1695	{
1696	rc = pfnCallback(pCur, pvArg);
1697	if (rc)
1698	break;
1699	}
1700	STAM_UNLOCK_RD(pUVM);
1701	}
1702
1703	/*
1704	* Multi expression pattern.
1705	*/
1706	else
1707	{
1708	/*
1709	* Split up the pattern first.
1710	*/
1711	char *pszCopy;
1712	unsigned cExpressions;
1713	char **papszExpressions = stamR3SplitPattern(pszPat, &cExpressions, &pszCopy);
1714	if (!papszExpressions)
1715	return VERR_NO_MEMORY;
1716
1717	/*
1718	* Perform the enumeration.
1719	*/
1720	if (fUpdateRing0)
1721	stamR3Ring0StatsUpdateMultiU(pUVM, papszExpressions, cExpressions);
1722
1723	STAM_LOCK_RD(pUVM);
1724	unsigned iExpression = 0;
1725	for (PSTAMDESC pCur = pUVM->stam.s.pHead; pCur; pCur = pCur->pNext)
1726	if (stamR3MultiMatch(papszExpressions, cExpressions, &iExpression, pCur->pszName))
1727	{
1728	rc = pfnCallback(pCur, pvArg);
1729	if (rc)
1730	break;
1731	}
1732	STAM_UNLOCK_RD(pUVM);
1733
1734	RTMemTmpFree(papszExpressions);
1735	RTStrFree(pszCopy);
1736	}
1737
1738	return rc;
1739	}
1740
1741
1742	/**
1743	* Registers the ring-0 statistics.
1744	*
1745	* @param pUVM Pointer to the user mode VM structure.
1746	*/
1747	static void stamR3Ring0StatsRegisterU(PUVM pUVM)
1748	{
1749	/* GVMM */
1750	for (unsigned i = 0; i < RT_ELEMENTS(g_aGVMMStats); i++)
1751	stamR3RegisterU(pUVM, (uint8_t *)&pUVM->stam.s.GVMMStats + g_aGVMMStats[i].offVar, NULL, NULL,
1752	g_aGVMMStats[i].enmType, STAMVISIBILITY_ALWAYS, g_aGVMMStats[i].pszName,
1753	g_aGVMMStats[i].enmUnit, g_aGVMMStats[i].pszDesc);
1754	pUVM->stam.s.cRegisteredHostCpus = 0;
1755
1756	/* GMM */
1757	for (unsigned i = 0; i < RT_ELEMENTS(g_aGMMStats); i++)
1758	stamR3RegisterU(pUVM, (uint8_t *)&pUVM->stam.s.GMMStats + g_aGMMStats[i].offVar, NULL, NULL,
1759	g_aGMMStats[i].enmType, STAMVISIBILITY_ALWAYS, g_aGMMStats[i].pszName,
1760	g_aGMMStats[i].enmUnit, g_aGMMStats[i].pszDesc);
1761	}
1762
1763
1764	/**
1765	* Updates the ring-0 statistics (the copy).
1766	*
1767	* @param pUVM Pointer to the user mode VM structure.
1768	* @param pszPat The pattern.
1769	*/
1770	static void stamR3Ring0StatsUpdateU(PUVM pUVM, const char *pszPat)
1771	{
1772	stamR3Ring0StatsUpdateMultiU(pUVM, &pszPat, 1);
1773	}
1774
1775
1776	/**
1777	* Updates the ring-0 statistics.
1778	*
1779	* The ring-0 statistics aren't directly addressable from ring-3 and must be
1780	* copied when needed.
1781	*
1782	* @param pUVM Pointer to the user mode VM structure.
1783	* @param pszPat The pattern (for knowing when to skip).
1784	*/
1785	static void stamR3Ring0StatsUpdateMultiU(PUVM pUVM, const char * const *papszExpressions, unsigned cExpressions)
1786	{
1787	PVM pVM = pUVM->pVM;
1788	if (!pVM \|\| !pVM->pSession)
1789	return;
1790
1791	/*
1792	* GVMM
1793	*/
1794	bool fUpdate = false;
1795	for (unsigned i = 0; i < RT_ELEMENTS(g_aGVMMStats); i++)
1796	if (stamR3MultiMatch(papszExpressions, cExpressions, NULL, g_aGVMMStats[i].pszName))
1797	{
1798	fUpdate = true;
1799	break;
1800	}
1801	if (!fUpdate)
1802	{
1803	/** @todo check the cpu leaves - rainy day. */
1804	}
1805	if (fUpdate)
1806	{
1807	GVMMQUERYSTATISTICSSREQ Req;
1808	Req.Hdr.cbReq = sizeof(Req);
1809	Req.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
1810	Req.pSession = pVM->pSession;
1811	int rc = SUPR3CallVMMR0Ex(pVM->pVMR0, NIL_VMCPUID, VMMR0_DO_GVMM_QUERY_STATISTICS, 0, &Req.Hdr);
1812	if (RT_SUCCESS(rc))
1813	{
1814	pUVM->stam.s.GVMMStats = Req.Stats;
1815
1816	/*
1817	* Check if the number of host CPUs has changed (it will the first
1818	* time around and normally never again).
1819	*/
1820	if (RT_UNLIKELY(pUVM->stam.s.GVMMStats.cHostCpus > pUVM->stam.s.cRegisteredHostCpus))
1821	{
1822	STAM_LOCK_WR(pUVM);
1823	if (RT_UNLIKELY(pUVM->stam.s.GVMMStats.cHostCpus > pUVM->stam.s.cRegisteredHostCpus))
1824	{
1825	uint32_t cCpus = pUVM->stam.s.GVMMStats.cHostCpus;
1826	for (uint32_t iCpu = pUVM->stam.s.cRegisteredHostCpus; iCpu < cCpus; iCpu++)
1827	{
1828	char szName[120];
1829	size_t cchBase = RTStrPrintf(szName, sizeof(szName), "/GVMM/HostCpus/%u", iCpu);
1830	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aHostCpus[iCpu].idCpu, NULL, NULL,
1831	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_NONE, "Host CPU ID");
1832	strcpy(&szName[cchBase], "/idxCpuSet");
1833	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aHostCpus[iCpu].idxCpuSet, NULL, NULL,
1834	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_NONE, "CPU Set index");
1835	strcpy(&szName[cchBase], "/DesiredHz");
1836	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aHostCpus[iCpu].uDesiredHz, NULL, NULL,
1837	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_HZ, "The desired frequency");
1838	strcpy(&szName[cchBase], "/CurTimerHz");
1839	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aHostCpus[iCpu].uTimerHz, NULL, NULL,
1840	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_HZ, "The current timer frequency");
1841	strcpy(&szName[cchBase], "/PPTChanges");
1842	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aHostCpus[iCpu].cChanges, NULL, NULL,
1843	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_OCCURENCES, "RTTimerChangeInterval calls");
1844	strcpy(&szName[cchBase], "/PPTStarts");
1845	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aHostCpus[iCpu].cStarts, NULL, NULL,
1846	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_OCCURENCES, "RTTimerStart calls");
1847	}
1848	pUVM->stam.s.cRegisteredHostCpus = cCpus;
1849	}
1850	STAM_UNLOCK_WR(pUVM);
1851	}
1852	}
1853	}
1854
1855	/*
1856	* GMM
1857	*/
1858	fUpdate = false;
1859	for (unsigned i = 0; i < RT_ELEMENTS(g_aGMMStats); i++)
1860	if (stamR3MultiMatch(papszExpressions, cExpressions, NULL, g_aGMMStats[i].pszName))
1861	{
1862	fUpdate = true;
1863	break;
1864	}
1865	if (fUpdate)
1866	{
1867	GMMQUERYSTATISTICSSREQ Req;
1868	Req.Hdr.cbReq = sizeof(Req);
1869	Req.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
1870	Req.pSession = pVM->pSession;
1871	int rc = SUPR3CallVMMR0Ex(pVM->pVMR0, NIL_VMCPUID, VMMR0_DO_GMM_QUERY_STATISTICS, 0, &Req.Hdr);
1872	if (RT_SUCCESS(rc))
1873	pUVM->stam.s.GMMStats = Req.Stats;
1874	}
1875	}
1876
1877
1878	/**
1879	* Get the unit string.
1880	*
1881	* @returns Pointer to read only unit string.
1882	* @param enmUnit The unit.
1883	*/
1884	VMMR3DECL(const char *) STAMR3GetUnit(STAMUNIT enmUnit)
1885	{
1886	switch (enmUnit)
1887	{
1888	case STAMUNIT_NONE: return "";
1889	case STAMUNIT_CALLS: return "calls";
1890	case STAMUNIT_COUNT: return "count";
1891	case STAMUNIT_BYTES: return "bytes";
1892	case STAMUNIT_PAGES: return "pages";
1893	case STAMUNIT_ERRORS: return "errors";
1894	case STAMUNIT_OCCURENCES: return "times";
1895	case STAMUNIT_TICKS: return "ticks";
1896	case STAMUNIT_TICKS_PER_CALL: return "ticks/call";
1897	case STAMUNIT_TICKS_PER_OCCURENCE: return "ticks/time";
1898	case STAMUNIT_GOOD_BAD: return "good:bad";
1899	case STAMUNIT_MEGABYTES: return "megabytes";
1900	case STAMUNIT_KILOBYTES: return "kilobytes";
1901	case STAMUNIT_NS: return "ns";
1902	case STAMUNIT_NS_PER_CALL: return "ns/call";
1903	case STAMUNIT_NS_PER_OCCURENCE: return "ns/time";
1904	case STAMUNIT_PCT: return "%";
1905	case STAMUNIT_HZ: return "Hz";
1906
1907	default:
1908	AssertMsgFailed(("Unknown unit %d\n", enmUnit));
1909	return "(?unit?)";
1910	}
1911	}
1912
1913	#ifdef VBOX_WITH_DEBUGGER
1914
1915	/**
1916	* @callback_method_impl{FNDBGCCMD, The '.stats' command.}
1917	*/
1918	static DECLCALLBACK(int) stamR3CmdStats(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1919	{
1920	/*
1921	* Validate input.
1922	*/
1923	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
1924	if (!pUVM->stam.s.pHead)
1925	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No statistics present");
1926
1927	/*
1928	* Do the printing.
1929	*/
1930	STAMR3PRINTONEARGS Args;
1931	Args.pUVM = pUVM;
1932	Args.pvArg = pCmdHlp;
1933	Args.pfnPrintf = stamR3EnumDbgfPrintf;
1934
1935	return stamR3EnumU(pUVM, cArgs ? paArgs[0].u.pszString : NULL, true /* fUpdateRing0 */, stamR3PrintOne, &Args);
1936	}
1937
1938
1939	/**
1940	* Display one sample in the debugger.
1941	*
1942	* @param pArgs Pointer to the print one argument structure.
1943	* @param pszFormat Format string.
1944	* @param ... Format arguments.
1945	*/
1946	static DECLCALLBACK(void) stamR3EnumDbgfPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...)
1947	{
1948	PDBGCCMDHLP pCmdHlp = (PDBGCCMDHLP)pArgs->pvArg;
1949
1950	va_list va;
1951	va_start(va, pszFormat);
1952	pCmdHlp->pfnPrintfV(pCmdHlp, NULL, pszFormat, va);
1953	va_end(va);
1954	NOREF(pArgs);
1955	}
1956
1957
1958	/**
1959	* @callback_method_impl{FNDBGCCMD, The '.statsreset' command.}
1960	*/
1961	static DECLCALLBACK(int) stamR3CmdStatsReset(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1962	{
1963	/*
1964	* Validate input.
1965	*/
1966	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
1967	if (!pUVM->stam.s.pHead)
1968	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No statistics present");
1969
1970	/*
1971	* Execute reset.
1972	*/
1973	int rc = STAMR3Reset(pUVM, cArgs ? paArgs[0].u.pszString : NULL);
1974	if (RT_SUCCESS(rc))
1975	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "STAMR3ResetU");
1976	return DBGCCmdHlpPrintf(pCmdHlp, "Statistics have been reset.\n");
1977	}
1978
1979	#endif /* VBOX_WITH_DEBUGGER */
1980

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source: vbox/trunk/src/VBox/VMM/VMMR3/STAM.cpp@ 44399

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