STAM.cpp@ 106061

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1	/* $Id: STAM.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
2	/** @file
3	* STAM - The Statistics Manager.
4	*/
5
6	/*
7	* Copyright (C) 2006-2024 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28	/** @page pg_stam STAM - The Statistics Manager
29	*
30	* The purpose for the statistics manager is to present the rest of the system
31	* with a somewhat uniform way of accessing VMM statistics. STAM sports a
32	* couple of different APIs for accessing them: STAMR3EnumU, STAMR3SnapshotU,
33	* STAMR3DumpU, STAMR3DumpToReleaseLogU and the debugger. Main is exposing the
34	* XML based one, STAMR3SnapshotU.
35	*
36	* The rest of the VMM together with the devices and drivers registers their
37	* statistics with STAM giving them a name. The name is hierarchical, the
38	* components separated by slashes ('/') and must start with a slash.
39	*
40	* Each item registered with STAM - also, half incorrectly, called a sample -
41	* has a type, unit, visibility, data pointer and description associated with it
42	* in addition to the name (described above). The type tells STAM what kind of
43	* structure the pointer is pointing to. The visibility allows unused
44	* statistics from cluttering the output or showing up in the GUI. All the bits
45	* together makes STAM able to present the items in a sensible way to the user.
46	* Some types also allows STAM to reset the data, which is very convenient when
47	* digging into specific operations and such.
48	*
49	* PS. The VirtualBox Debugger GUI has a viewer for inspecting the statistics
50	* STAM provides. You will also find statistics in the release and debug logs.
51	* And as mentioned in the introduction, the debugger console features a couple
52	* of command: .stats and .statsreset.
53	*
54	* @see grp_stam
55	*/
56
57
58	/*********************************************************************************************************************************
59	* Header Files *
60	*********************************************************************************************************************************/
61	#define LOG_GROUP LOG_GROUP_STAM
62	#include <VBox/vmm/stam.h>
63	#include "STAMInternal.h"
64	#include <VBox/vmm/vmcc.h>
65
66	#include <VBox/err.h>
67	#include <VBox/dbg.h>
68	#include <VBox/log.h>
69
70	#include <iprt/assert.h>
71	#include <iprt/asm.h>
72	#include <iprt/mem.h>
73	#include <iprt/stream.h>
74	#include <iprt/string.h>
75
76
77	/*********************************************************************************************************************************
78	* Defined Constants And Macros *
79	*********************************************************************************************************************************/
80	/** The maximum name length excluding the terminator. */
81	#define STAM_MAX_NAME_LEN 239
82
83
84	/*********************************************************************************************************************************
85	* Structures and Typedefs *
86	*********************************************************************************************************************************/
87	/**
88	* Argument structure for stamR3PrintOne().
89	*/
90	typedef struct STAMR3PRINTONEARGS
91	{
92	PUVM pUVM;
93	void *pvArg;
94	DECLCALLBACKMEMBER(void, pfnPrintf,(struct STAMR3PRINTONEARGS pvArg, const char pszFormat, ...));
95	} STAMR3PRINTONEARGS, *PSTAMR3PRINTONEARGS;
96
97
98	/**
99	* Argument structure to stamR3EnumOne().
100	*/
101	typedef struct STAMR3ENUMONEARGS
102	{
103	PVM pVM;
104	PFNSTAMR3ENUM pfnEnum;
105	void *pvUser;
106	} STAMR3ENUMONEARGS, *PSTAMR3ENUMONEARGS;
107
108
109	/**
110	* The snapshot status structure.
111	* Argument package passed to stamR3SnapshotOne, stamR3SnapshotPrintf and stamR3SnapshotOutput.
112	*/
113	typedef struct STAMR3SNAPSHOTONE
114	{
115	/** Pointer to the buffer start. */
116	char *pszStart;
117	/** Pointer to the buffer end. */
118	char *pszEnd;
119	/** Pointer to the current buffer position. */
120	char *psz;
121	/** Pointer to the VM. */
122	PVM pVM;
123	/** The number of bytes allocated. */
124	size_t cbAllocated;
125	/** The status code. */
126	int rc;
127	/** Whether to include the description strings. */
128	bool fWithDesc;
129	} STAMR3SNAPSHOTONE, *PSTAMR3SNAPSHOTONE;
130
131
132	/**
133	* Init record for a ring-0 statistic sample.
134	*/
135	typedef struct STAMR0SAMPLE
136	{
137	/** The GVMMSTATS structure offset of the variable. */
138	unsigned offVar;
139	/** The type. */
140	STAMTYPE enmType;
141	/** The unit. */
142	STAMUNIT enmUnit;
143	/** The name. */
144	const char *pszName;
145	/** The description. */
146	const char *pszDesc;
147	} STAMR0SAMPLE;
148
149
150	/*********************************************************************************************************************************
151	* Internal Functions *
152	*********************************************************************************************************************************/
153	static void stamR3LookupDestroyTree(PSTAMLOOKUP pRoot);
154	static int stamR3RegisterU(PUVM pUVM, void *pvSample, PFNSTAMR3CALLBACKRESET pfnReset,
155	PFNSTAMR3CALLBACKPRINT pfnPrint, STAMTYPE enmType, STAMVISIBILITY enmVisibility,
156	const char pszName, STAMUNIT enmUnit, const char pszDesc, uint8_t iRefreshGrp);
157	static int stamR3ResetOne(PSTAMDESC pDesc, void *pvArg);
158	static DECLCALLBACK(void) stamR3EnumLogPrintf(PSTAMR3PRINTONEARGS pvArg, const char *pszFormat, ...);
159	static DECLCALLBACK(void) stamR3EnumRelLogPrintf(PSTAMR3PRINTONEARGS pvArg, const char *pszFormat, ...);
160	static DECLCALLBACK(void) stamR3EnumPrintf(PSTAMR3PRINTONEARGS pvArg, const char *pszFormat, ...);
161	static int stamR3SnapshotOne(PSTAMDESC pDesc, void *pvArg);
162	static int stamR3SnapshotPrintf(PSTAMR3SNAPSHOTONE pThis, const char *pszFormat, ...);
163	static int stamR3PrintOne(PSTAMDESC pDesc, void *pvArg);
164	static int stamR3EnumOne(PSTAMDESC pDesc, void *pvArg);
165	static bool stamR3MultiMatch(const char * const papszExpressions, unsigned cExpressions, unsigned piExpression, const char *pszName);
166	static char ** stamR3SplitPattern(const char pszPat, unsigned pcExpressions, char **ppszCopy);
167	static int stamR3EnumU(PUVM pUVM, const char pszPat, bool fUpdateRing0, int (pfnCallback)(PSTAMDESC pDesc, void pvArg), void *pvArg);
168	static void stamR3Ring0StatsRegisterU(PUVM pUVM);
169
170	#ifdef VBOX_WITH_DEBUGGER
171	static FNDBGCCMD stamR3CmdStats;
172	static DECLCALLBACK(void) stamR3EnumDbgfPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...);
173	static FNDBGCCMD stamR3CmdStatsReset;
174	#endif
175
176
177	/*********************************************************************************************************************************
178	* Global Variables *
179	*********************************************************************************************************************************/
180	#ifdef VBOX_WITH_DEBUGGER
181	/** Pattern argument. */
182	static const DBGCVARDESC g_aArgPat[] =
183	{
184	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
185	{ 0, 1, DBGCVAR_CAT_STRING, 0, "pattern", "Which samples the command shall be applied to. Use '*' as wildcard. Use ';' to separate expression." }
186	};
187
188	/** Command descriptors. */
189	static const DBGCCMD g_aCmds[] =
190	{
191	/* pszCmd, cArgsMin, cArgsMax, paArgDesc, cArgDescs, fFlags, pfnHandler pszSyntax, ....pszDescription */
192	{ "stats", 0, 1, &g_aArgPat[0], RT_ELEMENTS(g_aArgPat), 0, stamR3CmdStats, "[pattern]", "Display statistics." },
193	{ "statsreset", 0, 1, &g_aArgPat[0], RT_ELEMENTS(g_aArgPat), 0, stamR3CmdStatsReset,"[pattern]", "Resets statistics." }
194	};
195	#endif
196
197
198	/**
199	* The GVMM mapping records - sans the host cpus.
200	*/
201	static const STAMR0SAMPLE g_aGVMMStats[] =
202	{
203	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltCalls", "The number of calls to GVMMR0SchedHalt." },
204	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltBlocking), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltBlocking", "The number of times we did go to sleep in GVMMR0SchedHalt." },
205	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltTimeouts), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltTimeouts", "The number of times we timed out in GVMMR0SchedHalt." },
206	{ 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." },
207	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltWakeUps", "The number of wake ups done during GVMMR0SchedHalt." },
208	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cWakeUpCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/WakeUpCalls", "The number of calls to GVMMR0WakeUp." },
209	{ 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." },
210	{ 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)." },
211	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cPokeCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/PokeCalls", "The number of calls to GVMMR0Poke." },
212	{ 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." },
213	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cPollCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/PollCalls", "The number of calls to GVMMR0SchedPoll." },
214	{ 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." },
215	{ RT_UOFFSETOF(GVMMSTATS, SchedVM.cPollWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/PollWakeUps", "The number of wake ups done during GVMMR0SchedPoll." },
216
217	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltCalls", "The number of calls to GVMMR0SchedHalt." },
218	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltBlocking), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltBlocking", "The number of times we did go to sleep in GVMMR0SchedHalt." },
219	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltTimeouts), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltTimeouts", "The number of times we timed out in GVMMR0SchedHalt." },
220	{ 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." },
221	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltWakeUps", "The number of wake ups done during GVMMR0SchedHalt." },
222	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cWakeUpCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/WakeUpCalls", "The number of calls to GVMMR0WakeUp." },
223	{ 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." },
224	{ 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)." },
225	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cPokeCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/PokeCalls", "The number of calls to GVMMR0Poke." },
226	{ 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." },
227	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cPollCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/PollCalls", "The number of calls to GVMMR0SchedPoll." },
228	{ 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." },
229	{ RT_UOFFSETOF(GVMMSTATS, SchedSum.cPollWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/PollWakeUps", "The number of wake ups done during GVMMR0SchedPoll." },
230
231	{ RT_UOFFSETOF(GVMMSTATS, cVMs), STAMTYPE_U32, STAMUNIT_COUNT, "/GVMM/VMs", "The number of VMs accessible to the caller." },
232	{ RT_UOFFSETOF(GVMMSTATS, cEMTs), STAMTYPE_U32, STAMUNIT_COUNT, "/GVMM/EMTs", "The number of emulation threads." },
233	{ RT_UOFFSETOF(GVMMSTATS, cHostCpus), STAMTYPE_U32, STAMUNIT_COUNT, "/GVMM/HostCPUs", "The number of host CPUs." },
234	};
235
236
237	/**
238	* The GMM mapping records.
239	*/
240	static const STAMR0SAMPLE g_aGMMStats[] =
241	{
242	{ RT_UOFFSETOF(GMMSTATS, cMaxPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cMaxPages", "The maximum number of pages GMM is allowed to allocate." },
243	{ RT_UOFFSETOF(GMMSTATS, cReservedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cReservedPages", "The number of pages that has been reserved." },
244	{ RT_UOFFSETOF(GMMSTATS, cOverCommittedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cOverCommittedPages", "The number of pages that we have over-committed in reservations." },
245	{ RT_UOFFSETOF(GMMSTATS, cAllocatedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cAllocatedPages", "The number of actually allocated (committed if you like) pages." },
246	{ RT_UOFFSETOF(GMMSTATS, cSharedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cSharedPages", "The number of pages that are shared. A subset of cAllocatedPages." },
247	{ RT_UOFFSETOF(GMMSTATS, cDuplicatePages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cDuplicatePages", "The number of pages that are actually shared between VMs." },
248	{ 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." },
249	{ RT_UOFFSETOF(GMMSTATS, cBalloonedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/cBalloonedPages", "The number of current ballooned pages." },
250	{ RT_UOFFSETOF(GMMSTATS, cChunks), STAMTYPE_U32, STAMUNIT_COUNT, "/GMM/cChunks", "The number of allocation chunks." },
251	{ RT_UOFFSETOF(GMMSTATS, cFreedChunks), STAMTYPE_U32, STAMUNIT_COUNT, "/GMM/cFreedChunks", "The number of freed chunks ever." },
252	{ RT_UOFFSETOF(GMMSTATS, cShareableModules), STAMTYPE_U32, STAMUNIT_COUNT, "/GMM/cShareableModules", "The number of shareable modules." },
253	{ RT_UOFFSETOF(GMMSTATS, idFreeGeneration), STAMTYPE_U64, STAMUNIT_NONE, "/GMM/idFreeGeneration", "The current chunk freeing generation number (for per-VM chunk lookup TLB versioning)." },
254	{ 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." },
255	{ RT_UOFFSETOF(GMMSTATS, VMStats.Reserved.cShadowPages), STAMTYPE_U32, STAMUNIT_PAGES, "/GMM/VM/Reserved/cShadowPages", "The amount of memory reserved for shadow/nested page tables." },
256	{ 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." },
257	{ 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." },
258	{ RT_UOFFSETOF(GMMSTATS, VMStats.Allocated.cShadowPages), STAMTYPE_U32, STAMUNIT_PAGES, "/GMM/VM/Allocated/cShadowPages", "The amount of memory allocated for shadow/nested page tables." },
259	{ 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." },
260	{ RT_UOFFSETOF(GMMSTATS, VMStats.cPrivatePages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/VM/cPrivatePages", "The current number of private pages." },
261	{ RT_UOFFSETOF(GMMSTATS, VMStats.cSharedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/VM/cSharedPages", "The current number of shared pages." },
262	{ RT_UOFFSETOF(GMMSTATS, VMStats.cBalloonedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/VM/cBalloonedPages", "The current number of ballooned pages." },
263	{ RT_UOFFSETOF(GMMSTATS, VMStats.cMaxBalloonedPages), STAMTYPE_U64, STAMUNIT_PAGES, "/GMM/VM/cMaxBalloonedPages", "The max number of pages that can be ballooned." },
264	{ 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." },
265	{ 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." },
266	{ 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." },
267	{ RT_UOFFSETOF(GMMSTATS, VMStats.cShareableModules), STAMTYPE_U32, STAMUNIT_COUNT, "/GMM/VM/cShareableModules", "The number of shareable modules traced by the VM." },
268	{ RT_UOFFSETOF(GMMSTATS, VMStats.enmPolicy), STAMTYPE_U32, STAMUNIT_NONE, "/GMM/VM/enmPolicy", "The current over-commit policy." },
269	{ 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." },
270	{ RT_UOFFSETOF(GMMSTATS, VMStats.fBallooningEnabled), STAMTYPE_BOOL, STAMUNIT_NONE, "/GMM/VM/fBallooningEnabled", "Whether ballooning is enabled or not." },
271	{ RT_UOFFSETOF(GMMSTATS, VMStats.fSharedPagingEnabled), STAMTYPE_BOOL, STAMUNIT_NONE, "/GMM/VM/fSharedPagingEnabled", "Whether shared paging is enabled or not." },
272	{ RT_UOFFSETOF(GMMSTATS, VMStats.fMayAllocate), STAMTYPE_BOOL, STAMUNIT_NONE, "/GMM/VM/fMayAllocate", "Whether the VM is allowed to allocate memory or not." },
273	};
274
275
276	/**
277	* Initializes the STAM.
278	*
279	* @returns VBox status code.
280	* @param pUVM The user mode VM structure.
281	*/
282	VMMR3DECL(int) STAMR3InitUVM(PUVM pUVM)
283	{
284	LogFlow(("STAMR3Init\n"));
285
286	/*
287	* Assert alignment and sizes.
288	*/
289	AssertCompile(sizeof(pUVM->stam.s) <= sizeof(pUVM->stam.padding));
290	AssertRelease(sizeof(pUVM->stam.s) <= sizeof(pUVM->stam.padding));
291
292	/*
293	* Initialize the read/write lock and list.
294	*/
295	int rc = RTSemRWCreate(&pUVM->stam.s.RWSem);
296	AssertRCReturn(rc, rc);
297
298	RTListInit(&pUVM->stam.s.List);
299
300	/*
301	* Initialize the root node.
302	*/
303	PSTAMLOOKUP pRoot = (PSTAMLOOKUP)RTMemAlloc(sizeof(STAMLOOKUP));
304	if (!pRoot)
305	{
306	RTSemRWDestroy(pUVM->stam.s.RWSem);
307	pUVM->stam.s.RWSem = NIL_RTSEMRW;
308	return VERR_NO_MEMORY;
309	}
310	pRoot->pParent = NULL;
311	pRoot->papChildren = NULL;
312	pRoot->pDesc = NULL;
313	pRoot->cDescsInTree = 0;
314	pRoot->cChildren = 0;
315	pRoot->iParent = UINT16_MAX;
316	pRoot->off = 0;
317	pRoot->cch = 0;
318	pRoot->szName[0] = '\0';
319
320	pUVM->stam.s.pRoot = pRoot;
321
322	/*
323	* Register the ring-0 statistics (GVMM/GMM).
324	*/
325	if (!SUPR3IsDriverless())
326	stamR3Ring0StatsRegisterU(pUVM);
327
328	#ifdef VBOX_WITH_DEBUGGER
329	/*
330	* Register debugger commands.
331	*/
332	static bool fRegisteredCmds = false;
333	if (!fRegisteredCmds)
334	{
335	rc = DBGCRegisterCommands(&g_aCmds[0], RT_ELEMENTS(g_aCmds));
336	if (RT_SUCCESS(rc))
337	fRegisteredCmds = true;
338	}
339	#endif
340
341	return VINF_SUCCESS;
342	}
343
344
345	/**
346	* Terminates the STAM.
347	*
348	* @param pUVM Pointer to the user mode VM structure.
349	*/
350	VMMR3DECL(void) STAMR3TermUVM(PUVM pUVM)
351	{
352	/*
353	* Free used memory and the RWLock.
354	*/
355	PSTAMDESC pCur, pNext;
356	RTListForEachSafe(&pUVM->stam.s.List, pCur, pNext, STAMDESC, ListEntry)
357	{
358	pCur->pLookup->pDesc = NULL;
359	if ( pCur->enmType != STAMTYPE_INTERNAL_SUM
360	&& pCur->enmType != STAMTYPE_INTERNAL_PCT_OF_SUM)
361	{ /* likely*/ }
362	else
363	RTMemFree(pCur->u.pSum);
364	RTMemFree(pCur);
365	}
366
367	stamR3LookupDestroyTree(pUVM->stam.s.pRoot);
368	pUVM->stam.s.pRoot = NULL;
369
370	Assert(pUVM->stam.s.RWSem != NIL_RTSEMRW);
371	RTSemRWDestroy(pUVM->stam.s.RWSem);
372	pUVM->stam.s.RWSem = NIL_RTSEMRW;
373	}
374
375
376	/**
377	* Registers a sample with the statistics manager.
378	*
379	* Statistics are maintained on a per VM basis and is normally registered
380	* during the VM init stage, but there is nothing preventing you from
381	* register them at runtime.
382	*
383	* Use STAMR3Deregister() to deregister statistics at runtime, however do
384	* not bother calling at termination time.
385	*
386	* It is not possible to register the same sample twice.
387	*
388	* @returns VBox status code.
389	* @param pUVM Pointer to the user mode VM structure.
390	* @param pvSample Pointer to the sample.
391	* @param enmType Sample type. This indicates what pvSample is pointing at.
392	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
393	* @param pszName Sample name. The name is on this form "/<component>/<sample>".
394	* Further nesting is possible.
395	* @param enmUnit Sample unit.
396	* @param pszDesc Sample description.
397	*/
398	VMMR3DECL(int) STAMR3RegisterU(PUVM pUVM, void pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, const char pszName,
399	STAMUNIT enmUnit, const char *pszDesc)
400	{
401	AssertReturn(enmType != STAMTYPE_CALLBACK && enmType < STAMTYPE_FIRST_INTERNAL_TYPE, VERR_INVALID_PARAMETER);
402	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
403	return stamR3RegisterU(pUVM, pvSample, NULL, NULL, enmType, enmVisibility, pszName, enmUnit, pszDesc, STAM_REFRESH_GRP_NONE);
404	}
405
406
407	/**
408	* Registers a sample with the statistics manager.
409	*
410	* Statistics are maintained on a per VM basis and is normally registered
411	* during the VM init stage, but there is nothing preventing you from
412	* register them at runtime.
413	*
414	* Use STAMR3Deregister() to deregister statistics at runtime, however do
415	* not bother calling at termination time.
416	*
417	* It is not possible to register the same sample twice.
418	*
419	* @returns VBox status code.
420	* @param pVM The cross context VM structure.
421	* @param pvSample Pointer to the sample.
422	* @param enmType Sample type. This indicates what pvSample is pointing at.
423	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
424	* @param pszName Sample name. The name is on this form "/<component>/<sample>".
425	* Further nesting is possible.
426	* @param enmUnit Sample unit.
427	* @param pszDesc Sample description.
428	*/
429	VMMR3DECL(int) STAMR3Register(PVM pVM, void pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, const char pszName,
430	STAMUNIT enmUnit, const char *pszDesc)
431	{
432	AssertReturn(enmType != STAMTYPE_CALLBACK && enmType < STAMTYPE_FIRST_INTERNAL_TYPE, VERR_INVALID_PARAMETER);
433	return stamR3RegisterU(pVM->pUVM, pvSample, NULL, NULL, enmType, enmVisibility, pszName, enmUnit, pszDesc,
434	STAM_REFRESH_GRP_NONE);
435	}
436
437
438	/**
439	* Same as STAMR3RegisterU except that the name is specified in a
440	* RTStrPrintf like fashion.
441	*
442	* @returns VBox status code.
443	* @param pUVM Pointer to the user mode VM structure.
444	* @param pvSample Pointer to the sample.
445	* @param enmType Sample type. This indicates what pvSample is pointing at.
446	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
447	* @param enmUnit Sample unit.
448	* @param pszDesc Sample description.
449	* @param pszName The sample name format string.
450	* @param ... Arguments to the format string.
451	*/
452	VMMR3DECL(int) STAMR3RegisterFU(PUVM pUVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
453	const char pszDesc, const char pszName, ...)
454	{
455	va_list args;
456	va_start(args, pszName);
457	int rc = STAMR3RegisterVU(pUVM, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName, args);
458	va_end(args);
459	return rc;
460	}
461
462
463	/**
464	* Same as STAMR3Register except that the name is specified in a
465	* RTStrPrintf like fashion.
466	*
467	* @returns VBox status code.
468	* @param pVM The cross context VM structure.
469	* @param pvSample Pointer to the sample.
470	* @param enmType Sample type. This indicates what pvSample is pointing at.
471	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
472	* @param enmUnit Sample unit.
473	* @param pszDesc Sample description.
474	* @param pszName The sample name format string.
475	* @param ... Arguments to the format string.
476	*/
477	VMMR3DECL(int) STAMR3RegisterF(PVM pVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
478	const char pszDesc, const char pszName, ...)
479	{
480	va_list args;
481	va_start(args, pszName);
482	int rc = STAMR3RegisterVU(pVM->pUVM, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName, args);
483	va_end(args);
484	return rc;
485	}
486
487
488	/**
489	* Same as STAMR3Register except that the name is specified in a
490	* RTStrPrintfV like fashion.
491	*
492	* @returns VBox status code.
493	* @param pUVM The user mode VM structure.
494	* @param pvSample Pointer to the sample.
495	* @param enmType Sample type. This indicates what pvSample is pointing at.
496	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
497	* @param enmUnit Sample unit.
498	* @param pszDesc Sample description.
499	* @param pszName The sample name format string.
500	* @param args Arguments to the format string.
501	*/
502	VMMR3DECL(int) STAMR3RegisterVU(PUVM pUVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
503	const char pszDesc, const char pszName, va_list args)
504	{
505	AssertReturn(enmType != STAMTYPE_CALLBACK, VERR_INVALID_PARAMETER);
506
507	char szFormattedName[STAM_MAX_NAME_LEN + 8];
508	size_t cch = RTStrPrintfV(szFormattedName, sizeof(szFormattedName), pszName, args);
509	AssertReturn(cch <= STAM_MAX_NAME_LEN, VERR_OUT_OF_RANGE);
510
511	return STAMR3RegisterU(pUVM, pvSample, enmType, enmVisibility, szFormattedName, enmUnit, pszDesc);
512	}
513
514
515	/**
516	* Same as STAMR3Register except that the name is specified in a
517	* RTStrPrintfV like fashion.
518	*
519	* @returns VBox status code.
520	* @param pVM The cross context VM structure.
521	* @param pvSample Pointer to the sample.
522	* @param enmType Sample type. This indicates what pvSample is pointing at.
523	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
524	* @param enmUnit Sample unit.
525	* @param pszDesc Sample description.
526	* @param pszName The sample name format string.
527	* @param args Arguments to the format string.
528	*/
529	VMMR3DECL(int) STAMR3RegisterV(PVM pVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
530	const char pszDesc, const char pszName, va_list args)
531	{
532	return STAMR3RegisterVU(pVM->pUVM, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName, args);
533	}
534
535
536	/**
537	* Similar to STAMR3Register except for the two callbacks, the implied type (STAMTYPE_CALLBACK),
538	* and name given in an RTStrPrintf like fashion.
539	*
540	* @returns VBox status code.
541	* @param pVM The cross context VM structure.
542	* @param pvSample Pointer to the sample.
543	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
544	* @param enmUnit Sample unit.
545	* @param pfnReset Callback for resetting the sample. NULL should be used if the sample can't be reset.
546	* @param pfnPrint Print the sample.
547	* @param pszDesc Sample description.
548	* @param pszName The sample name format string.
549	* @param ... Arguments to the format string.
550	* @remark There is currently no device or driver variant of this API. Add one if it should become necessary!
551	*/
552	VMMR3DECL(int) STAMR3RegisterCallback(PVM pVM, void *pvSample, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
553	PFNSTAMR3CALLBACKRESET pfnReset, PFNSTAMR3CALLBACKPRINT pfnPrint,
554	const char pszDesc, const char pszName, ...)
555	{
556	va_list args;
557	va_start(args, pszName);
558	int rc = STAMR3RegisterCallbackV(pVM, pvSample, enmVisibility, enmUnit, pfnReset, pfnPrint, pszDesc, pszName, args);
559	va_end(args);
560	return rc;
561	}
562
563
564	/**
565	* Same as STAMR3RegisterCallback() except for the ellipsis which is a va_list here.
566	*
567	* @returns VBox status code.
568	* @param pVM The cross context VM structure.
569	* @param pvSample Pointer to the sample.
570	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
571	* @param enmUnit Sample unit.
572	* @param pfnReset Callback for resetting the sample. NULL should be used if the sample can't be reset.
573	* @param pfnPrint Print the sample.
574	* @param pszDesc Sample description.
575	* @param pszName The sample name format string.
576	* @param args Arguments to the format string.
577	* @remark There is currently no device or driver variant of this API. Add one if it should become necessary!
578	*/
579	VMMR3DECL(int) STAMR3RegisterCallbackV(PVM pVM, void *pvSample, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
580	PFNSTAMR3CALLBACKRESET pfnReset, PFNSTAMR3CALLBACKPRINT pfnPrint,
581	const char pszDesc, const char pszName, va_list args)
582	{
583	char *pszFormattedName;
584	RTStrAPrintfV(&pszFormattedName, pszName, args);
585	if (!pszFormattedName)
586	return VERR_NO_MEMORY;
587
588	int rc = stamR3RegisterU(pVM->pUVM, pvSample, pfnReset, pfnPrint, STAMTYPE_CALLBACK, enmVisibility, pszFormattedName,
589	enmUnit, pszDesc, STAM_REFRESH_GRP_NONE);
590	RTStrFree(pszFormattedName);
591	return rc;
592	}
593
594
595	/**
596	* Same as STAMR3RegisterFU, except there is an extra refresh group parameter.
597	*
598	* @returns VBox status code.
599	* @param pUVM Pointer to the user mode VM structure.
600	* @param pvSample Pointer to the sample.
601	* @param enmType Sample type. This indicates what pvSample is pointing at.
602	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
603	* @param enmUnit Sample unit.
604	* @param iRefreshGrp The refresh group, STAM_REFRESH_GRP_XXX.
605	* @param pszDesc Sample description.
606	* @param pszName The sample name format string.
607	* @param ... Arguments to the format string.
608	*/
609	VMMR3DECL(int) STAMR3RegisterRefresh(PUVM pUVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
610	uint8_t iRefreshGrp, const char pszDesc, const char pszName, ...)
611	{
612	va_list args;
613	va_start(args, pszName);
614	int rc = STAMR3RegisterRefreshV(pUVM, pvSample, enmType, enmVisibility, enmUnit, iRefreshGrp, pszDesc, pszName, args);
615	va_end(args);
616	return rc;
617	}
618
619
620	/**
621	* Same as STAMR3RegisterVU, except there is an extra refresh group parameter.
622	*
623	* @returns VBox status code.
624	* @param pUVM The user mode VM structure.
625	* @param pvSample Pointer to the sample.
626	* @param enmType Sample type. This indicates what pvSample is pointing at.
627	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
628	* @param enmUnit Sample unit.
629	* @param iRefreshGrp The refresh group, STAM_REFRESH_GRP_XXX.
630	* @param pszDesc Sample description.
631	* @param pszName The sample name format string.
632	* @param va Arguments to the format string.
633	*/
634	VMMR3DECL(int) STAMR3RegisterRefreshV(PUVM pUVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
635	uint8_t iRefreshGrp, const char pszDesc, const char pszName, va_list va)
636	{
637	AssertReturn(enmType != STAMTYPE_CALLBACK && enmType < STAMTYPE_FIRST_INTERNAL_TYPE, VERR_INVALID_PARAMETER);
638
639	char szFormattedName[STAM_MAX_NAME_LEN + 8];
640	size_t cch = RTStrPrintfV(szFormattedName, sizeof(szFormattedName), pszName, va);
641	AssertReturn(cch <= STAM_MAX_NAME_LEN, VERR_OUT_OF_RANGE);
642
643	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
644	return stamR3RegisterU(pUVM, pvSample, NULL, NULL, enmType, enmVisibility, pszName, enmUnit, pszDesc, iRefreshGrp);
645	}
646
647
648	/**
649	* Refreshes the cached sum (STAMSUMSAMPLE::u) of a sum sample.
650	*/
651	static void stamR3SumRefresh(PSTAMSUMSAMPLE pSum)
652	{
653	switch (pSum->enmType)
654	{
655	case STAMTYPE_COUNTER:
656	{
657	uint64_t uSum = 0;
658	uintptr_t i = pSum->cSummands;
659	while (i-- > 0)
660	{
661	PSTAMDESC const pDesc = pSum->apSummands[i];
662	switch (pDesc->enmType)
663	{
664	case STAMTYPE_COUNTER:
665	uSum += pDesc->u.pCounter->c;
666	break;
667
668	case STAMTYPE_U64:
669	case STAMTYPE_U64_RESET:
670	case STAMTYPE_X64:
671	case STAMTYPE_X64_RESET:
672	uSum += *pDesc->u.pu64;
673	break;
674
675	case STAMTYPE_U32:
676	case STAMTYPE_U32_RESET:
677	case STAMTYPE_X32:
678	case STAMTYPE_X32_RESET:
679	uSum += *pDesc->u.pu32;
680	break;
681
682	case STAMTYPE_U16:
683	case STAMTYPE_U16_RESET:
684	case STAMTYPE_X16:
685	case STAMTYPE_X16_RESET:
686	uSum += *pDesc->u.pu16;
687	break;
688
689	case STAMTYPE_U8:
690	case STAMTYPE_U8_RESET:
691	case STAMTYPE_X8:
692	case STAMTYPE_X8_RESET:
693	uSum += *pDesc->u.pu8;
694	break;
695
696	default:
697	AssertFailedBreak();
698	}
699	}
700	pSum->u.Counter.c = uSum;
701	break;
702	}
703
704	case STAMTYPE_PROFILE:
705	{
706	uint64_t cPeriods = 0;
707	uint64_t uTotal = 0;
708	uint64_t uMax = 0;
709	uint64_t uMin = UINT64_MAX;
710	uintptr_t i = pSum->cSummands;
711	while (i-- > 0)
712	{
713	PSTAMDESC const pDesc = pSum->apSummands[i];
714	AssertContinue( pDesc->enmType == STAMTYPE_PROFILE
715	\|\| pDesc->enmType == STAMTYPE_PROFILE_ADV);
716	PSTAMPROFILE const pProfile = pDesc->u.pProfile;
717	cPeriods += pProfile->cPeriods;
718	uTotal += pProfile->cTicks;
719	uint64_t u = pProfile->cTicksMax;
720	if (u > uMax)
721	uMax = u;
722	u = pProfile->cTicksMin;
723	if (u < uMin)
724	uMin = u;
725	}
726
727	pSum->u.Profile.cTicks = uTotal;
728	pSum->u.Profile.cPeriods = cPeriods;
729	pSum->u.Profile.cTicksMin = uMin;
730	pSum->u.Profile.cTicksMax = uMax;
731	break;
732	}
733
734	default:
735	AssertFailedReturnVoid();
736	}
737	}
738
739
740	/**
741	* Used by STAMR3RegisterSumV to locate the samples to sum up.
742	*/
743	static int stamR3RegisterSumEnumCallback(PSTAMDESC pDesc, void *pvArg)
744	{
745	PSTAMSUMSAMPLE const pSum = (PSTAMSUMSAMPLE)pvArg;
746	if (pSum->cSummands == 0)
747	{
748	/*
749	* The first time around we check that the type is a supported one
750	* and just set the unit.
751	*/
752	switch (pDesc->enmType)
753	{
754	case STAMTYPE_COUNTER:
755	case STAMTYPE_U64:
756	case STAMTYPE_U64_RESET:
757	case STAMTYPE_X64:
758	case STAMTYPE_X64_RESET:
759	case STAMTYPE_U32:
760	case STAMTYPE_U32_RESET:
761	case STAMTYPE_X32:
762	case STAMTYPE_X32_RESET:
763	case STAMTYPE_U16:
764	case STAMTYPE_U16_RESET:
765	case STAMTYPE_X16:
766	case STAMTYPE_X16_RESET:
767	case STAMTYPE_U8:
768	case STAMTYPE_U8_RESET:
769	case STAMTYPE_X8:
770	case STAMTYPE_X8_RESET:
771	pSum->enmType = STAMTYPE_COUNTER;
772	break;
773
774	case STAMTYPE_PROFILE:
775	case STAMTYPE_PROFILE_ADV:
776	pSum->enmType = STAMTYPE_PROFILE;
777	break;
778
779	default:
780	AssertMsgFailedReturn(("Summing up enmType=%d types have not been implemented yet! Sorry.\n", pDesc->enmType),
781	VERR_WRONG_TYPE);
782	}
783	pSum->enmTypeFirst = pDesc->enmType;
784	pSum->enmUnit = pDesc->enmUnit;
785	}
786	else
787	{
788	/*
789	* Make sure additional sample compatible with the first,
790	* both type and unit.
791	*/
792	if (RT_LIKELY( pDesc->enmType == pSum->enmType
793	\|\| pDesc->enmType == (STAMTYPE)pSum->enmTypeFirst))
794	{ /* likely */ }
795	else
796	{
797	switch (pSum->enmType)
798	{
799	case STAMTYPE_COUNTER:
800	AssertMsgReturn( pDesc->enmType == STAMTYPE_COUNTER
801	\|\| pDesc->enmType == STAMTYPE_U64
802	\|\| pDesc->enmType == STAMTYPE_U64_RESET
803	\|\| pDesc->enmType == STAMTYPE_X64
804	\|\| pDesc->enmType == STAMTYPE_X64_RESET
805	\|\| pDesc->enmType == STAMTYPE_U32
806	\|\| pDesc->enmType == STAMTYPE_U32_RESET
807	\|\| pDesc->enmType == STAMTYPE_X32
808	\|\| pDesc->enmType == STAMTYPE_X32_RESET
809	\|\| pDesc->enmType == STAMTYPE_U16
810	\|\| pDesc->enmType == STAMTYPE_U16_RESET
811	\|\| pDesc->enmType == STAMTYPE_X16
812	\|\| pDesc->enmType == STAMTYPE_X16_RESET
813	\|\| pDesc->enmType == STAMTYPE_U8
814	\|\| pDesc->enmType == STAMTYPE_U8_RESET
815	\|\| pDesc->enmType == STAMTYPE_X8
816	\|\| pDesc->enmType == STAMTYPE_X8_RESET,
817	("Unsupported type mixup: %d & %d (%s)\n", pSum->enmType, pDesc->enmType, pDesc->pszName),
818	VERR_MISMATCH);
819	break;
820
821	case STAMTYPE_PROFILE:
822	AssertMsgReturn( pDesc->enmType == STAMTYPE_PROFILE
823	\|\| pDesc->enmType == STAMTYPE_PROFILE_ADV,
824	("Unsupported type mixup: %d & %d (%s)\n", pSum->enmType, pDesc->enmType, pDesc->pszName),
825	VERR_MISMATCH);
826	break;
827
828	default:
829	AssertFailedReturn(VERR_MISMATCH);
830	}
831	}
832
833	if (RT_LIKELY(pDesc->enmUnit == pSum->enmUnit))
834	{ /* likely */ }
835	else if (pDesc->enmUnit != STAMUNIT_NONE)
836	{
837	AssertReturn(pSum->enmUnit == STAMUNIT_NONE, VERR_MISMATCH);
838	pSum->enmUnit = pDesc->enmUnit;
839	}
840
841	AssertReturn(pSum->cSummands < pSum->cSummandsAlloc, VERR_TOO_MUCH_DATA);
842	}
843	pSum->apSummands[pSum->cSummands++] = pDesc;
844	return VINF_SUCCESS;
845	}
846
847
848	/**
849	* Registers a sum that is to be calculated from the @a pszSummandPattern hits.
850	*
851	* @returns VBox status code.
852	* @param pUVM Pointer to the user mode VM structure.
853	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
854	* @param pszSummandPattern A simple pattern for the elements that should be
855	* summed up. These must have matching types and
856	* units.
857	* @param pszDesc Sample description.
858	* @param pszName The sample name format string.
859	* @param va Arguments to the format string.
860	*/
861	VMMR3DECL(int) STAMR3RegisterSumV(PUVM pUVM, STAMVISIBILITY enmVisibility, const char *pszSummandPattern,
862	const char pszDesc, const char pszName, va_list va)
863	{
864	char szFormattedName[STAM_MAX_NAME_LEN + 8];
865	size_t cch = RTStrPrintfV(szFormattedName, sizeof(szFormattedName), pszName, va);
866	AssertReturn(cch <= STAM_MAX_NAME_LEN, VERR_OUT_OF_RANGE);
867
868	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
869
870	/*
871	* We have to resolve the summands before we continue with the actual registration.
872	*/
873	uint8_t const cMaxSummands = 32;
874	PSTAMSUMSAMPLE const pSum = (PSTAMSUMSAMPLE)RTMemAllocZ(RT_UOFFSETOF_DYN(STAMSUMSAMPLE, apSummands[cMaxSummands]));
875	AssertReturn(pSum, VERR_NO_MEMORY);
876	pSum->cSummandsAlloc = cMaxSummands;
877
878	STAM_LOCK_WR(pUVM);
879
880	int rc = stamR3EnumU(pUVM, pszSummandPattern, false /fUpdateRing0/, stamR3RegisterSumEnumCallback, pSum);
881	if (RT_SUCCESS(rc))
882	{
883	if (pSum->cSummands > 0)
884	rc = stamR3RegisterU(pUVM, pSum, NULL, NULL, STAMTYPE_INTERNAL_SUM, enmVisibility, szFormattedName,
885	(STAMUNIT)pSum->enmUnit, pszDesc, STAM_REFRESH_GRP_NONE);
886	else
887	AssertFailedStmt(rc = VERR_NO_DATA);
888	}
889
890	STAM_UNLOCK_WR(pUVM);
891
892	if (RT_FAILURE(rc))
893	RTMemFree(pSum);
894	return rc;
895	}
896
897
898	/**
899	* Registers a sum that is to be calculated from the @a pszSummandPattern hits.
900	*
901	* @returns VBox status code.
902	* @param pUVM Pointer to the user mode VM structure.
903	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
904	* @param pszSummandPattern A simple pattern for the elements that should be
905	* summed up. These must have matching types and
906	* units.
907	* @param pszDesc Sample description.
908	* @param pszName The sample name format string.
909	* @param ... Arguments to the format string.
910	*/
911	VMMR3DECL(int) STAMR3RegisterSum(PUVM pUVM, STAMVISIBILITY enmVisibility, const char *pszSummandPattern,
912	const char pszDesc, const char pszName, ...)
913	{
914	va_list va;
915	va_start(va, pszName);
916	int rc = STAMR3RegisterSumV(pUVM, enmVisibility, pszSummandPattern, pszDesc, pszName, va);
917	va_end(va);
918	return rc;
919	}
920
921
922	/**
923	* Refreshes the cached value (STAMSUMSAMPLE::u) of a percent-of-sum sample.
924	*/
925	static void stamR3PctOfSumRefresh(PSTAMDESC pDesc, PSTAMSUMSAMPLE pSum)
926	{
927	/*
928	* First the value so we only read it once.
929	*/
930	PSTAMDESC const pValDesc = pSum->apSummands[0];
931	uint64_t uValue;
932	switch (pValDesc->enmType)
933	{
934	case STAMTYPE_COUNTER:
935	uValue = pValDesc->u.pCounter->c;
936	break;
937
938	case STAMTYPE_U64:
939	case STAMTYPE_U64_RESET:
940	case STAMTYPE_X64:
941	case STAMTYPE_X64_RESET:
942	uValue = *pValDesc->u.pu64;
943	break;
944
945	case STAMTYPE_U32:
946	case STAMTYPE_U32_RESET:
947	case STAMTYPE_X32:
948	case STAMTYPE_X32_RESET:
949	uValue = *pValDesc->u.pu32;
950	break;
951
952	case STAMTYPE_U16:
953	case STAMTYPE_U16_RESET:
954	case STAMTYPE_X16:
955	case STAMTYPE_X16_RESET:
956	uValue = *pValDesc->u.pu16;
957	break;
958
959	case STAMTYPE_U8:
960	case STAMTYPE_U8_RESET:
961	case STAMTYPE_X8:
962	case STAMTYPE_X8_RESET:
963	uValue = *pValDesc->u.pu8;
964	break;
965
966	case STAMTYPE_PROFILE:
967	case STAMTYPE_PROFILE_ADV:
968	uValue = pValDesc->u.pProfile->cTicks;
969	break;
970
971	case STAMTYPE_INTERNAL_SUM:
972	{
973	PSTAMSUMSAMPLE const pSubSum = pValDesc->u.pSum;
974	stamR3SumRefresh(pSubSum);
975	if (pSubSum->enmType == STAMTYPE_COUNTER)
976	uValue = pSubSum->u.Counter.c;
977	else
978	uValue = pSubSum->u.Profile.cTicks;
979	break;
980	}
981
982	default:
983	AssertFailedReturnVoid();
984	}
985
986	/*
987	* Sum it up with the rest.
988	*/
989	uint64_t uSum = pSum->fAddValueToSum ? uValue : 0;
990	uintptr_t i = pSum->cSummands;
991	while (i-- > 1)
992	{
993	PSTAMDESC const pSummandDesc = pSum->apSummands[i];
994	switch (pSummandDesc->enmType)
995	{
996	case STAMTYPE_COUNTER:
997	uSum += pSummandDesc->u.pCounter->c;
998	break;
999
1000	case STAMTYPE_U64:
1001	case STAMTYPE_U64_RESET:
1002	case STAMTYPE_X64:
1003	case STAMTYPE_X64_RESET:
1004	uSum += *pSummandDesc->u.pu64;
1005	break;
1006
1007	case STAMTYPE_U32:
1008	case STAMTYPE_U32_RESET:
1009	case STAMTYPE_X32:
1010	case STAMTYPE_X32_RESET:
1011	uSum += *pSummandDesc->u.pu32;
1012	break;
1013
1014	case STAMTYPE_U16:
1015	case STAMTYPE_U16_RESET:
1016	case STAMTYPE_X16:
1017	case STAMTYPE_X16_RESET:
1018	uSum += *pSummandDesc->u.pu16;
1019	break;
1020
1021	case STAMTYPE_U8:
1022	case STAMTYPE_U8_RESET:
1023	case STAMTYPE_X8:
1024	case STAMTYPE_X8_RESET:
1025	uSum += *pSummandDesc->u.pu8;
1026	break;
1027
1028	case STAMTYPE_PROFILE:
1029	case STAMTYPE_PROFILE_ADV:
1030	uSum += pSummandDesc->u.pProfile->cTicks;
1031	break;
1032
1033	case STAMTYPE_INTERNAL_SUM:
1034	{
1035	PSTAMSUMSAMPLE const pSubSum = pSummandDesc->u.pSum;
1036	stamR3SumRefresh(pSubSum);
1037	if (pSubSum->enmType == STAMTYPE_COUNTER)
1038	uSum += pSubSum->u.Counter.c;
1039	else
1040	uSum += pSubSum->u.Profile.cTicks;
1041	break;
1042	}
1043
1044	default:
1045	AssertFailedBreak();
1046	}
1047	}
1048
1049	/*
1050	* Calculate the percentage.
1051	*/
1052	if (uSum && uValue)
1053	{
1054	switch (pDesc->enmUnit)
1055	{
1056	case STAMUNIT_PCT:
1057	pSum->u.Counter.c = uValue * 100 / uSum;
1058	break;
1059	case STAMUNIT_PP1K:
1060	pSum->u.Counter.c = uValue * 1000 / uSum;
1061	break;
1062	case STAMUNIT_PP10K:
1063	pSum->u.Counter.c = uValue * 10000 / uSum;
1064	break;
1065	default:
1066	AssertFailed();
1067	RT_FALL_THROUGH();
1068	case STAMUNIT_PPM:
1069	pSum->u.Counter.c = uValue * 1000000 / uSum;
1070	break;
1071	case STAMUNIT_PPB:
1072	pSum->u.Counter.c = uValue * 1000000000 / uSum;
1073	break;
1074	}
1075	}
1076	else
1077	pSum->u.Counter.c = 0;
1078	}
1079
1080
1081	/**
1082	* Used by STAMR3RegisterPctOfSumV to locate the value to turn into a
1083	* percentage.
1084	*/
1085	static int stamR3RegisterPctOfSumEnumCallbackForValue(PSTAMDESC pDesc, void *pvArg)
1086	{
1087	PSTAMSUMSAMPLE const pSum = (PSTAMSUMSAMPLE)pvArg;
1088	AssertReturn(pSum->cSummands == 0, VERR_TOO_MUCH_DATA);
1089
1090	/*
1091	* Check for compatibility.
1092	*/
1093	switch (pDesc->enmType)
1094	{
1095	case STAMTYPE_COUNTER:
1096	case STAMTYPE_U64:
1097	case STAMTYPE_U64_RESET:
1098	case STAMTYPE_X64:
1099	case STAMTYPE_X64_RESET:
1100	case STAMTYPE_U32:
1101	case STAMTYPE_U32_RESET:
1102	case STAMTYPE_X32:
1103	case STAMTYPE_X32_RESET:
1104	case STAMTYPE_U16:
1105	case STAMTYPE_U16_RESET:
1106	case STAMTYPE_X16:
1107	case STAMTYPE_X16_RESET:
1108	case STAMTYPE_U8:
1109	case STAMTYPE_U8_RESET:
1110	case STAMTYPE_X8:
1111	case STAMTYPE_X8_RESET:
1112	case STAMTYPE_PROFILE:
1113	case STAMTYPE_PROFILE_ADV:
1114	case STAMTYPE_INTERNAL_SUM:
1115	break;
1116
1117	default:
1118	AssertMsgFailedReturn(("Pct-of-sum for enmType=%d types have not been implemented yet! Sorry.\n", pDesc->enmType),
1119	VERR_WRONG_TYPE);
1120	}
1121	pSum->enmTypeFirst = pDesc->enmType;
1122	pSum->apSummands[0] = pDesc;
1123	pSum->cSummands = 1;
1124	return VINF_SUCCESS;
1125	}
1126
1127
1128	/**
1129	* Used by STAMR3RegisterPctOfSumV to locate the samples to sum up.
1130	*/
1131	static int stamR3RegisterPctOfSumEnumCallbackForSummands(PSTAMDESC pDesc, void *pvArg)
1132	{
1133	PSTAMSUMSAMPLE const pSum = (PSTAMSUMSAMPLE)pvArg;
1134
1135	/*
1136	* Skip if the same as the value we're calculating the percentage for.
1137	*/
1138	if (pDesc == pSum->apSummands[0])
1139	return VINF_SUCCESS;
1140
1141	/*
1142	* Make sure additional samples are compatible with the first as far as type.
1143	*/
1144	if (RT_LIKELY( pDesc->enmType == pSum->enmType
1145	\|\| pDesc->enmType == (STAMTYPE)pSum->enmTypeFirst))
1146	{ /* likely */ }
1147	else
1148	{
1149	switch (pDesc->enmType)
1150	{
1151	case STAMTYPE_COUNTER:
1152	case STAMTYPE_U64:
1153	case STAMTYPE_U64_RESET:
1154	case STAMTYPE_X64:
1155	case STAMTYPE_X64_RESET:
1156	case STAMTYPE_U32:
1157	case STAMTYPE_U32_RESET:
1158	case STAMTYPE_X32:
1159	case STAMTYPE_X32_RESET:
1160	case STAMTYPE_U16:
1161	case STAMTYPE_U16_RESET:
1162	case STAMTYPE_X16:
1163	case STAMTYPE_X16_RESET:
1164	case STAMTYPE_U8:
1165	case STAMTYPE_U8_RESET:
1166	case STAMTYPE_X8:
1167	case STAMTYPE_X8_RESET:
1168	case STAMTYPE_PROFILE:
1169	case STAMTYPE_PROFILE_ADV:
1170	case STAMTYPE_INTERNAL_SUM:
1171	break;
1172
1173	default:
1174	AssertMsgFailedReturn(("Unsupported pct-of-sum type: %d (%s)\n", pDesc->enmType, pDesc->pszName), VERR_MISMATCH);
1175	}
1176	}
1177
1178	AssertReturn(pSum->cSummands < pSum->cSummandsAlloc, VERR_TOO_MUCH_DATA);
1179	pSum->apSummands[pSum->cSummands++] = pDesc;
1180	return VINF_SUCCESS;
1181	}
1182
1183
1184	/**
1185	* Registers a percentage of a sum that is to be calculated from @a pszValue and
1186	* the @a pszSummandPattern hits.
1187	*
1188	* @returns VBox status code.
1189	* @param pUVM Pointer to the user mode VM structure.
1190	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
1191	* @param enmUnit The sample unit: STAMUNIT_PCT, STAMUNIT_PP1K,
1192	* STAMUNIT_PP10K, STAMUNIT_PPM or STAMUNIT_PPB.
1193	* @param pszValue Name of the sample which value should be put
1194	* against the sum of all.
1195	* @param pszSummandPattern A simple pattern for the elements that should be
1196	* summed up and used to divide @a pszName by when
1197	* calculating the percentage. These must have
1198	* compatible types.
1199	* @param fAddValueToSum Whether to add @a pszValue to the values that
1200	* @a pszSummandPattern specifies (@c true) or not
1201	* (@c false).
1202	* @param pszDesc Sample description.
1203	* @param pszName The sample name format string.
1204	* @param va Arguments to the format string.
1205	*/
1206	VMMR3DECL(int) STAMR3RegisterPctOfSumV(PUVM pUVM, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit, const char *pszValue,
1207	bool fAddValueToSum, const char pszSummandPattern, const char pszDesc,
1208	const char *pszName, va_list va)
1209	{
1210	char szFormattedName[STAM_MAX_NAME_LEN + 8];
1211	size_t cch = RTStrPrintfV(szFormattedName, sizeof(szFormattedName), pszName, va);
1212	AssertReturn(cch <= STAM_MAX_NAME_LEN, VERR_OUT_OF_RANGE);
1213	switch (enmUnit)
1214	{
1215	case STAMUNIT_PCT:
1216	case STAMUNIT_PP1K:
1217	case STAMUNIT_PP10K:
1218	case STAMUNIT_PPM:
1219	case STAMUNIT_PPB:
1220	break;
1221	default:
1222	AssertFailedReturn(VERR_INVALID_PARAMETER);
1223	}
1224
1225	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1226
1227	/*
1228	* We have to resolve the value and summands before we continue with the
1229	* actual registration. We reuse the STAMSUMSAMPLE structure here.
1230	*/
1231	uint8_t const cMaxSummands = 32;
1232	PSTAMSUMSAMPLE const pSum = (PSTAMSUMSAMPLE)RTMemAllocZ(RT_UOFFSETOF_DYN(STAMSUMSAMPLE, apSummands[cMaxSummands]));
1233	AssertReturn(pSum, VERR_NO_MEMORY);
1234	pSum->cSummandsAlloc = cMaxSummands;
1235	pSum->enmType = STAMTYPE_COUNTER;
1236	pSum->enmUnit = enmUnit;
1237	pSum->fAddValueToSum = fAddValueToSum;
1238
1239	STAM_LOCK_WR(pUVM);
1240
1241	/* The first summand entry is the value. */
1242	int rc = stamR3EnumU(pUVM, pszValue, false /fUpdateRing0/, stamR3RegisterPctOfSumEnumCallbackForValue, pSum);
1243	if (RT_SUCCESS(rc))
1244	{
1245	if (pSum->cSummands == 1)
1246	{
1247	/* The additional ones are part of the sum we should divide the value by. */
1248	rc = stamR3EnumU(pUVM, pszSummandPattern, false /fUpdateRing0/, stamR3RegisterPctOfSumEnumCallbackForSummands, pSum);
1249	if (RT_SUCCESS(rc))
1250	{
1251	/* Now, register it. */
1252	if (pSum->cSummands > 1)
1253	rc = stamR3RegisterU(pUVM, pSum, NULL, NULL, STAMTYPE_INTERNAL_PCT_OF_SUM, enmVisibility, szFormattedName,
1254	(STAMUNIT)pSum->enmUnit, pszDesc, STAM_REFRESH_GRP_NONE);
1255	else
1256	AssertFailedStmt(rc = VERR_NO_DATA);
1257	}
1258	}
1259	else
1260	AssertFailedStmt(rc = VERR_NO_DATA);
1261	}
1262
1263	STAM_UNLOCK_WR(pUVM);
1264
1265	if (RT_FAILURE(rc))
1266	RTMemFree(pSum);
1267	return rc;
1268	}
1269
1270
1271	/**
1272	* Registers a percentage of a sum that is to be calculated from @a pszValue and
1273	* the @a pszSummandPattern hits.
1274	*
1275	* @returns VBox status code.
1276	* @param pUVM Pointer to the user mode VM structure.
1277	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
1278	* @param enmUnit The sample unit: STAMUNIT_PCT, STAMUNIT_PP1K,
1279	* STAMUNIT_PP10K, STAMUNIT_PPM or STAMUNIT_PPB.
1280	* @param pszValue Name of the sample which value should be put
1281	* against the sum of all.
1282	* @param pszSummandPattern A simple pattern for the elements that should be
1283	* summed up and used to divide @a pszName by when
1284	* calculating the percentage. These must have
1285	* compatible types.
1286	* @param fAddValueToSum Whether to add @a pszValue to the values that
1287	* @a pszSummandPattern specifies (@c true) or not
1288	* (@c false).
1289	* @param pszDesc Sample description.
1290	* @param pszName The sample name format string.
1291	* @param ... Arguments to the format string.
1292	*/
1293	VMMR3DECL(int) STAMR3RegisterPctOfSum(PUVM pUVM, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit, const char *pszValue,
1294	bool fAddValueToSum, const char pszSummandPattern, const char pszDesc,
1295	const char *pszName, ...)
1296	{
1297	va_list va;
1298	va_start(va, pszName);
1299	int rc = STAMR3RegisterPctOfSumV(pUVM, enmVisibility, enmUnit, pszValue, fAddValueToSum, pszSummandPattern,
1300	pszDesc, pszName, va);
1301	va_end(va);
1302	return rc;
1303	}
1304
1305
1306	#ifdef VBOX_STRICT
1307	/**
1308	* Divide the strings into sub-strings using '/' as delimiter
1309	* and then compare them in strcmp fashion.
1310	*
1311	* @returns Difference.
1312	* @retval 0 if equal.
1313	* @retval < 0 if psz1 is less than psz2.
1314	* @retval > 0 if psz1 greater than psz2.
1315	*
1316	* @param psz1 The first string.
1317	* @param psz2 The second string.
1318	*/
1319	static int stamR3SlashCompare(const char psz1, const char psz2)
1320	{
1321	for (;;)
1322	{
1323	unsigned int ch1 = *psz1++;
1324	unsigned int ch2 = *psz2++;
1325	if (ch1 != ch2)
1326	{
1327	/* slash is end-of-sub-string, so it trumps everything but '\0'. */
1328	if (ch1 == '/')
1329	return ch2 ? -1 : 1;
1330	if (ch2 == '/')
1331	return ch1 ? 1 : -1;
1332	return ch1 - ch2;
1333	}
1334
1335	/* done? */
1336	if (ch1 == '\0')
1337	return 0;
1338	}
1339	}
1340	#endif /* VBOX_STRICT */
1341
1342
1343	/**
1344	* Compares a lookup node with a name.
1345	*
1346	* @returns like strcmp and memcmp.
1347	* @param pNode The lookup node.
1348	* @param pchName The name, not necessarily terminated.
1349	* @param cchName The length of the name.
1350	*/
1351	DECL_FORCE_INLINE(int) stamR3LookupCmp(PSTAMLOOKUP pNode, const char *pchName, uint32_t cchName)
1352	{
1353	uint32_t cchComp = RT_MIN(pNode->cch, cchName);
1354	int iDiff = memcmp(pNode->szName, pchName, cchComp);
1355	if (!iDiff && pNode->cch != cchName)
1356	iDiff = pNode->cch > cchName ? 2 : -2;
1357	return iDiff;
1358	}
1359
1360
1361	/**
1362	* Creates a new lookup child node.
1363	*
1364	* @returns Pointer to the newly created lookup node.
1365	* @param pParent The parent node.
1366	* @param pchName The name (not necessarily terminated).
1367	* @param cchName The length of the name.
1368	* @param offName The offset of the node in a path.
1369	* @param iChild Child index of a node that's before the one
1370	* we're inserting (returned by
1371	* stamR3LookupFindChild).
1372	*/
1373	static PSTAMLOOKUP stamR3LookupNewChild(PSTAMLOOKUP pParent, const char *pchName, uint32_t cchName, uint32_t offName,
1374	uint32_t iChild)
1375	{
1376	Assert(cchName <= UINT8_MAX);
1377	Assert(offName <= UINT8_MAX);
1378	Assert(iChild < UINT16_MAX);
1379
1380	/*
1381	* Allocate a new entry.
1382	*/
1383	PSTAMLOOKUP pNew = (PSTAMLOOKUP)RTMemAlloc(RT_UOFFSETOF_DYN(STAMLOOKUP, szName[cchName + 1]));
1384	if (!pNew)
1385	return NULL;
1386	pNew->pParent = pParent;
1387	pNew->papChildren = NULL;
1388	pNew->pDesc = NULL;
1389	pNew->cDescsInTree = 0;
1390	pNew->cChildren = 0;
1391	pNew->cch = (uint16_t)cchName;
1392	pNew->off = (uint16_t)offName;
1393	memcpy(pNew->szName, pchName, cchName);
1394	pNew->szName[cchName] = '\0';
1395
1396	/*
1397	* Reallocate the array?
1398	*/
1399	if (RT_IS_POWER_OF_TWO(pParent->cChildren))
1400	{
1401	uint32_t cNew = pParent->cChildren ? (uint32_t)pParent->cChildren * 2 : 8;
1402	AssertReturnStmt(cNew <= 0x8000, RTMemFree(pNew), NULL);
1403	void pvNew = RTMemRealloc(pParent->papChildren, cNew sizeof(pParent->papChildren[0]));
1404	if (!pvNew)
1405	{
1406	RTMemFree(pNew);
1407	return NULL;
1408	}
1409	pParent->papChildren = (PSTAMLOOKUP *)pvNew;
1410	}
1411
1412	/*
1413	* Find the exact insertion point using iChild as a very good clue from
1414	* the find function.
1415	*/
1416	if (!pParent->cChildren)
1417	iChild = 0;
1418	else
1419	{
1420	if (iChild >= pParent->cChildren)
1421	iChild = pParent->cChildren - 1;
1422	while ( iChild < pParent->cChildren
1423	&& stamR3LookupCmp(pParent->papChildren[iChild], pchName, cchName) < 0)
1424	iChild++;
1425	}
1426
1427	/*
1428	* Insert it.
1429	*/
1430	if (iChild < pParent->cChildren)
1431	{
1432	/* Do shift. */
1433	uint32_t i = pParent->cChildren;
1434	while (i > iChild)
1435	{
1436	PSTAMLOOKUP pNode = pParent->papChildren[i - 1];
1437	pParent->papChildren[i] = pNode;
1438	pNode->iParent = i;
1439	i--;
1440	}
1441	}
1442
1443	pNew->iParent = iChild;
1444	pParent->papChildren[iChild] = pNew;
1445	pParent->cChildren++;
1446
1447	return pNew;
1448	}
1449
1450
1451	/**
1452	* Looks up a child.
1453	*
1454	* @returns Pointer to child node if found, NULL if not.
1455	* @param pParent The parent node.
1456	* @param pchName The name (not necessarily terminated).
1457	* @param cchName The length of the name.
1458	* @param piChild Where to store a child index suitable for
1459	* passing to stamR3LookupNewChild when NULL is
1460	* returned.
1461	*/
1462	static PSTAMLOOKUP stamR3LookupFindChild(PSTAMLOOKUP pParent, const char pchName, uint32_t cchName, uint32_t piChild)
1463	{
1464	uint32_t iChild = pParent->cChildren;
1465	if (iChild > 4)
1466	{
1467	uint32_t iFirst = 0;
1468	uint32_t iEnd = iChild;
1469	iChild /= 2;
1470	for (;;)
1471	{
1472	int iDiff = stamR3LookupCmp(pParent->papChildren[iChild], pchName, cchName);
1473	if (!iDiff)
1474	{
1475	if (piChild)
1476	*piChild = iChild;
1477	return pParent->papChildren[iChild];
1478	}
1479
1480	/* Split. */
1481	if (iDiff < 0)
1482	{
1483	iFirst = iChild + 1;
1484	if (iFirst >= iEnd)
1485	{
1486	if (piChild)
1487	*piChild = iChild;
1488	break;
1489	}
1490	}
1491	else
1492	{
1493	if (iChild == iFirst)
1494	{
1495	if (piChild)
1496	*piChild = iChild ? iChild - 1 : 0;
1497	break;
1498	}
1499	iEnd = iChild;
1500	}
1501
1502	/* Calc next child. */
1503	iChild = (iEnd - iFirst) / 2 + iFirst;
1504	}
1505	return NULL;
1506	}
1507
1508	/*
1509	* Linear search.
1510	*/
1511	while (iChild-- > 0)
1512	{
1513	int iDiff = stamR3LookupCmp(pParent->papChildren[iChild], pchName, cchName);
1514	if (iDiff <= 0)
1515	{
1516	if (piChild)
1517	*piChild = iChild;
1518	return !iDiff ? pParent->papChildren[iChild] : NULL;
1519	}
1520	}
1521	if (piChild)
1522	*piChild = 0;
1523	return NULL;
1524	}
1525
1526
1527	/**
1528	* Find the next sample descriptor node.
1529	*
1530	* This is for use with insertion in the big list and pattern range lookups.
1531	*
1532	* @returns Pointer to the next sample descriptor. NULL if not found (i.e.
1533	* we're at the end of the list).
1534	* @param pLookup The current node.
1535	*/
1536	static PSTAMDESC stamR3LookupFindNextWithDesc(PSTAMLOOKUP pLookup)
1537	{
1538	Assert(!pLookup->pDesc);
1539	PSTAMLOOKUP pCur = pLookup;
1540	uint32_t iCur = 0;
1541	for (;;)
1542	{
1543	/*
1544	* Check all children.
1545	*/
1546	uint32_t cChildren = pCur->cChildren;
1547	if (iCur < cChildren)
1548	{
1549	PSTAMLOOKUP *papChildren = pCur->papChildren;
1550	do
1551	{
1552	PSTAMLOOKUP pChild = papChildren[iCur];
1553	if (pChild->pDesc)
1554	return pChild->pDesc;
1555
1556	if (pChild->cChildren > 0)
1557	{
1558	/* One level down. */
1559	iCur = 0;
1560	pCur = pChild;
1561	break;
1562	}
1563	} while (++iCur < cChildren);
1564	}
1565	else
1566	{
1567	/*
1568	* One level up, resuming after the current.
1569	*/
1570	iCur = pCur->iParent + 1;
1571	pCur = pCur->pParent;
1572	if (!pCur)
1573	return NULL;
1574	}
1575	}
1576	}
1577
1578
1579	/**
1580	* Look up a sample descriptor by name.
1581	*
1582	* @returns Pointer to a sample descriptor.
1583	* @param pRoot The root node.
1584	* @param pszName The name to lookup.
1585	*/
1586	static PSTAMDESC stamR3LookupFindDesc(PSTAMLOOKUP pRoot, const char *pszName)
1587	{
1588	Assert(!pRoot->pParent);
1589	while (*pszName++ == '/')
1590	{
1591	const char *pszEnd = strchr(pszName, '/');
1592	uint32_t cch = pszEnd ? pszEnd - pszName : (uint32_t)strlen(pszName);
1593	PSTAMLOOKUP pChild = stamR3LookupFindChild(pRoot, pszName, cch, NULL);
1594	if (!pChild)
1595	break;
1596	if (!pszEnd)
1597	return pChild->pDesc;
1598	pszName = pszEnd;
1599	pRoot = pChild;
1600	}
1601
1602	return NULL;
1603	}
1604
1605
1606	/**
1607	* Finds the first sample descriptor for a given lookup range.
1608	*
1609	* This is for pattern range lookups.
1610	*
1611	* @returns Pointer to the first descriptor.
1612	* @param pFirst The first node in the range.
1613	* @param pLast The last node in the range.
1614	*/
1615	static PSTAMDESC stamR3LookupFindFirstDescForRange(PSTAMLOOKUP pFirst, PSTAMLOOKUP pLast)
1616	{
1617	if (pFirst->pDesc)
1618	return pFirst->pDesc;
1619
1620	PSTAMLOOKUP pCur = pFirst;
1621	uint32_t iCur = 0;
1622	for (;;)
1623	{
1624	uint32_t cChildren = pCur->cChildren;
1625	if (iCur < pCur->cChildren)
1626	{
1627	/*
1628	* Check all children.
1629	*/
1630	PSTAMLOOKUP * const papChildren = pCur->papChildren;
1631	do
1632	{
1633	PSTAMLOOKUP pChild = papChildren[iCur];
1634	if (pChild->pDesc)
1635	return pChild->pDesc;
1636	if (pChild->cChildren > 0)
1637	{
1638	/* One level down. */
1639	iCur = 0;
1640	pCur = pChild;
1641	break;
1642	}
1643	if (pChild == pLast)
1644	return NULL;
1645	} while (++iCur < cChildren);
1646	}
1647	else
1648	{
1649	/*
1650	* One level up, checking current and its 'older' sibilings.
1651	*/
1652	if (pCur == pLast)
1653	return NULL;
1654	iCur = pCur->iParent + 1;
1655	pCur = pCur->pParent;
1656	if (!pCur)
1657	break;
1658	}
1659	}
1660
1661	return NULL;
1662	}
1663
1664
1665	/**
1666	* Finds the last sample descriptor for a given lookup range.
1667	*
1668	* This is for pattern range lookups.
1669	*
1670	* @returns Pointer to the first descriptor.
1671	* @param pFirst The first node in the range.
1672	* @param pLast The last node in the range.
1673	*/
1674	static PSTAMDESC stamR3LookupFindLastDescForRange(PSTAMLOOKUP pFirst, PSTAMLOOKUP pLast)
1675	{
1676	PSTAMLOOKUP pCur = pLast;
1677	uint32_t iCur = pCur->cChildren - 1;
1678	for (;;)
1679	{
1680	if (iCur < pCur->cChildren)
1681	{
1682	/*
1683	* Check children backwards, depth first.
1684	*/
1685	PSTAMLOOKUP * const papChildren = pCur->papChildren;
1686	do
1687	{
1688	PSTAMLOOKUP pChild = papChildren[iCur];
1689	if (pChild->cChildren > 0)
1690	{
1691	/* One level down. */
1692	iCur = pChild->cChildren - 1;
1693	pCur = pChild;
1694	break;
1695	}
1696
1697	if (pChild->pDesc)
1698	return pChild->pDesc;
1699	if (pChild == pFirst)
1700	return NULL;
1701	} while (iCur-- > 0); /* (underflow handled above) */
1702	}
1703	else
1704	{
1705	/*
1706	* One level up, checking current and its 'older' sibilings.
1707	*/
1708	if (pCur->pDesc)
1709	return pCur->pDesc;
1710	if (pCur == pFirst)
1711	return NULL;
1712	iCur = pCur->iParent - 1; /* (underflow handled above) */
1713	pCur = pCur->pParent;
1714	if (!pCur)
1715	break;
1716	}
1717	}
1718
1719	return NULL;
1720	}
1721
1722
1723	/**
1724	* Look up the first and last descriptors for a (single) pattern expression.
1725	*
1726	* This is used to optimize pattern enumerations and doesn't have to return 100%
1727	* accurate results if that costs too much.
1728	*
1729	* @returns Pointer to the first descriptor in the range.
1730	* @param pRoot The root node.
1731	* @param pList The descriptor list anchor.
1732	* @param pszPat The name patter to lookup.
1733	* @param ppLastDesc Where to store the address of the last
1734	* descriptor (approximate).
1735	*/
1736	static PSTAMDESC stamR3LookupFindPatternDescRange(PSTAMLOOKUP pRoot, PRTLISTANCHOR pList, const char *pszPat,
1737	PSTAMDESC *ppLastDesc)
1738	{
1739	Assert(!pRoot->pParent);
1740
1741	/*
1742	* If there is an early enough wildcard, the whole list needs to be searched.
1743	*/
1744	if ( pszPat[0] == '*' \|\| pszPat[0] == '?'
1745	\|\| pszPat[1] == '*' \|\| pszPat[1] == '?')
1746	{
1747	*ppLastDesc = RTListGetLast(pList, STAMDESC, ListEntry);
1748	return RTListGetFirst(pList, STAMDESC, ListEntry);
1749	}
1750
1751	/*
1752	* All statistics starts with a slash.
1753	*/
1754	while ( *pszPat++ == '/'
1755	&& pRoot->cDescsInTree > 0
1756	&& pRoot->cChildren > 0)
1757	{
1758	const char *pszEnd = strchr(pszPat, '/');
1759	uint32_t cch = pszEnd ? pszEnd - pszPat : (uint32_t)strlen(pszPat);
1760	if (!cch)
1761	break;
1762
1763	const char pszPat1 = (const char )memchr(pszPat, '*', cch);
1764	const char pszPat2 = (const char )memchr(pszPat, '?', cch);
1765	if (pszPat1 \|\| pszPat2)
1766	{
1767	/* We've narrowed it down to a sub-tree now. */
1768	PSTAMLOOKUP pFirst = pRoot->papChildren[0];
1769	PSTAMLOOKUP pLast = pRoot->papChildren[pRoot->cChildren - 1];
1770	/** @todo narrow the range further if both pszPat1/2 != pszPat. */
1771
1772	*ppLastDesc = stamR3LookupFindLastDescForRange(pFirst, pLast);
1773	return stamR3LookupFindFirstDescForRange(pFirst, pLast);
1774	}
1775
1776	PSTAMLOOKUP pChild = stamR3LookupFindChild(pRoot, pszPat, cch, NULL);
1777	if (!pChild)
1778	break;
1779
1780	/* Advance */
1781	if (!pszEnd)
1782	return *ppLastDesc = pChild->pDesc;
1783	pszPat = pszEnd;
1784	pRoot = pChild;
1785	}
1786
1787	/* No match. */
1788	*ppLastDesc = NULL;
1789	return NULL;
1790	}
1791
1792
1793	/**
1794	* Look up the first descriptors for starts-with name string.
1795	*
1796	* This is used to optimize deletion.
1797	*
1798	* @returns Pointer to the first descriptor in the range.
1799	* @param pRoot The root node.
1800	* @param pchPrefix The name prefix.
1801	* @param cchPrefix The name prefix length (can be shorter than the
1802	* actual string).
1803	* @param ppLastDesc Where to store the address of the last descriptor.
1804	* @sa stamR3LookupFindPatternDescRange
1805	*/
1806	static PSTAMDESC stamR3LookupFindByPrefixRange(PSTAMLOOKUP pRoot, const char *pchPrefix, uint32_t cchPrefix,
1807	PSTAMDESC *ppLastDesc)
1808
1809	{
1810	*ppLastDesc = NULL;
1811	Assert(!pRoot->pParent);
1812	AssertReturn(cchPrefix > 0, NULL);
1813
1814	/*
1815	* We start with a root slash.
1816	*/
1817	if (!cchPrefix \|\| *pchPrefix != '/')
1818	return NULL;
1819
1820	/*
1821	* Walk thru the prefix component by component, since that's how
1822	* the lookup tree is organized.
1823	*/
1824	while ( cchPrefix
1825	&& *pchPrefix == '/'
1826	&& pRoot->cDescsInTree > 0
1827	&& pRoot->cChildren > 0)
1828	{
1829	cchPrefix -= 1;
1830	pchPrefix += 1;
1831
1832	const char pszEnd = (const char )memchr(pchPrefix, '/', cchPrefix);
1833	if (!pszEnd)
1834	{
1835	/*
1836	* We've narrowed it down to a sub-tree now. If we've no more prefix to work
1837	* with now (e.g. '/Devices/'), the prefix matches all the children. Otherwise,
1838	* traverse the children to find the ones matching the prefix.
1839	*/
1840	if (!cchPrefix)
1841	{
1842	*ppLastDesc = stamR3LookupFindLastDescForRange(pRoot->papChildren[0], pRoot->papChildren[pRoot->cChildren - 1]);
1843	return stamR3LookupFindFirstDescForRange(pRoot->papChildren[0], pRoot->papChildren[pRoot->cChildren - 1]);
1844	}
1845
1846	size_t iEnd = pRoot->cChildren;
1847	if (iEnd < 16)
1848	{
1849	/* Linear scan of the children: */
1850	for (size_t i = 0; i < pRoot->cChildren; i++)
1851	{
1852	PSTAMLOOKUP pCur = pRoot->papChildren[i];
1853	if (pCur->cch >= cchPrefix)
1854	{
1855	int iDiff = memcmp(pCur->szName, pchPrefix, cchPrefix);
1856	if (iDiff == 0)
1857	{
1858	size_t iLast = i;
1859	while (++iLast < pRoot->cChildren)
1860	{
1861	PSTAMLOOKUP pCur2 = pRoot->papChildren[iLast];
1862	if ( pCur2->cch < cchPrefix
1863	\|\| memcmp(pCur2->szName, pchPrefix, cchPrefix) != 0)
1864	break;
1865	}
1866	iLast--;
1867
1868	*ppLastDesc = stamR3LookupFindLastDescForRange(pCur, pRoot->papChildren[iLast]);
1869	return stamR3LookupFindFirstDescForRange(pCur, pRoot->papChildren[iLast]);
1870	}
1871	if (iDiff > 0)
1872	break;
1873	}
1874	}
1875	}
1876	else
1877	{
1878	/* Binary search to find something matching the prefix, followed
1879	by a reverse scan to locate the first child: */
1880	size_t iFirst = 0;
1881	size_t i = iEnd / 2;
1882	for (;;)
1883	{
1884	PSTAMLOOKUP pCur = pRoot->papChildren[i];
1885	int iDiff;
1886	if (pCur->cch >= cchPrefix)
1887	iDiff = memcmp(pCur->szName, pchPrefix, cchPrefix);
1888	else
1889	{
1890	iDiff = memcmp(pCur->szName, pchPrefix, pCur->cch);
1891	if (!iDiff)
1892	iDiff = -1;
1893	}
1894	if (iDiff > 0)
1895	{
1896	if (iFirst < i)
1897	iEnd = i;
1898	else
1899	return NULL;
1900	}
1901	else if (iDiff < 0)
1902	{
1903	i += 1;
1904	if (i < iEnd)
1905	iFirst = i;
1906	else
1907	return NULL;
1908	}
1909	else
1910	{
1911	/* Match. Reverse scan to find the first. */
1912	iFirst = i;
1913	while ( iFirst > 0
1914	&& (pCur = pRoot->papChildren[iFirst - 1])->cch >= cchPrefix
1915	&& memcmp(pCur->szName, pchPrefix, cchPrefix) == 0)
1916	iFirst--;
1917
1918	/* Forward scan to find the last.*/
1919	size_t iLast = i;
1920	while (++iLast < pRoot->cChildren)
1921	{
1922	pCur = pRoot->papChildren[iLast];
1923	if ( pCur->cch < cchPrefix
1924	\|\| memcmp(pCur->szName, pchPrefix, cchPrefix) != 0)
1925	break;
1926	}
1927	iLast--;
1928
1929	*ppLastDesc = stamR3LookupFindLastDescForRange(pRoot->papChildren[iFirst], pRoot->papChildren[iLast]);
1930	return stamR3LookupFindFirstDescForRange(pRoot->papChildren[iFirst], pRoot->papChildren[iLast]);
1931	}
1932
1933	i = iFirst + (iEnd - iFirst) / 2;
1934	}
1935	}
1936	break;
1937	}
1938
1939	/* Find child matching the path component: */
1940	uint32_t cchChild = pszEnd - pchPrefix;
1941	PSTAMLOOKUP pChild = stamR3LookupFindChild(pRoot, pchPrefix, cchChild, NULL);
1942	if (!pChild)
1943	break;
1944
1945	/* Advance: */
1946	cchPrefix -= cchChild;
1947	pchPrefix = pszEnd;
1948	pRoot = pChild;
1949	}
1950	return NULL;
1951	}
1952
1953
1954	/**
1955	* Increments the cDescInTree member of the given node an all ancestors.
1956	*
1957	* @param pLookup The lookup node.
1958	*/
1959	static void stamR3LookupIncUsage(PSTAMLOOKUP pLookup)
1960	{
1961	Assert(pLookup->pDesc);
1962
1963	PSTAMLOOKUP pCur = pLookup;
1964	while (pCur != NULL)
1965	{
1966	pCur->cDescsInTree++;
1967	pCur = pCur->pParent;
1968	}
1969	}
1970
1971
1972	/**
1973	* Descrements the cDescInTree member of the given node an all ancestors.
1974	*
1975	* @param pLookup The lookup node.
1976	*/
1977	static void stamR3LookupDecUsage(PSTAMLOOKUP pLookup)
1978	{
1979	Assert(!pLookup->pDesc);
1980
1981	PSTAMLOOKUP pCur = pLookup;
1982	while (pCur != NULL)
1983	{
1984	Assert(pCur->cDescsInTree > 0);
1985	pCur->cDescsInTree--;
1986	pCur = pCur->pParent;
1987	}
1988	}
1989
1990
1991	/**
1992	* Frees empty lookup nodes if it's worth it.
1993	*
1994	* @param pLookup The lookup node.
1995	*/
1996	static void stamR3LookupMaybeFree(PSTAMLOOKUP pLookup)
1997	{
1998	Assert(!pLookup->pDesc);
1999
2000	/*
2001	* Free between two and three levels of nodes. Freeing too much most
2002	* likely wasted effort since we're either going to repopluate the tree
2003	* or quit the whole thing.
2004	*/
2005	if (pLookup->cDescsInTree > 0)
2006	return;
2007
2008	PSTAMLOOKUP pCur = pLookup->pParent;
2009	if (!pCur)
2010	return;
2011	if (pCur->cDescsInTree > 0)
2012	return;
2013	PSTAMLOOKUP pParent = pCur->pParent;
2014	if (!pParent)
2015	return;
2016
2017	if (pParent->cDescsInTree == 0 && pParent->pParent)
2018	{
2019	pCur = pParent;
2020	pParent = pCur->pParent;
2021	}
2022
2023	/*
2024	* Remove pCur from pParent.
2025	*/
2026	PSTAMLOOKUP *papChildren = pParent->papChildren;
2027	uint32_t cChildren = --pParent->cChildren;
2028	for (uint32_t i = pCur->iParent; i < cChildren; i++)
2029	{
2030	PSTAMLOOKUP pChild = papChildren[i + 1];
2031	pChild->iParent = i;
2032	papChildren[i] = pChild;
2033	}
2034	pCur->pParent = NULL;
2035	pCur->iParent = UINT16_MAX;
2036
2037	/*
2038	* Destroy pCur.
2039	*/
2040	stamR3LookupDestroyTree(pCur);
2041	}
2042
2043
2044	/**
2045	* Destroys a lookup tree.
2046	*
2047	* This is used by STAMR3Term as well as stamR3LookupMaybeFree.
2048	*
2049	* @param pRoot The root of the tree (must have no parent).
2050	*/
2051	static void stamR3LookupDestroyTree(PSTAMLOOKUP pRoot)
2052	{
2053	Assert(pRoot); Assert(!pRoot->pParent);
2054	PSTAMLOOKUP pCur = pRoot;
2055	for (;;)
2056	{
2057	uint32_t i = pCur->cChildren;
2058	if (i > 0)
2059	{
2060	/*
2061	* Push child (with leaf optimization).
2062	*/
2063	PSTAMLOOKUP pChild = pCur->papChildren[--i];
2064	if (pChild->cChildren != 0)
2065	pCur = pChild;
2066	else
2067	{
2068	/* free leaves. */
2069	for (;;)
2070	{
2071	if (pChild->papChildren)
2072	{
2073	RTMemFree(pChild->papChildren);
2074	pChild->papChildren = NULL;
2075	}
2076	RTMemFree(pChild);
2077	pCur->papChildren[i] = NULL;
2078
2079	/* next */
2080	if (i == 0)
2081	{
2082	pCur->cChildren = 0;
2083	break;
2084	}
2085	pChild = pCur->papChildren[--i];
2086	if (pChild->cChildren != 0)
2087	{
2088	pCur->cChildren = i + 1;
2089	pCur = pChild;
2090	break;
2091	}
2092	}
2093	}
2094	}
2095	else
2096	{
2097	/*
2098	* Pop and free current.
2099	*/
2100	Assert(!pCur->pDesc);
2101
2102	PSTAMLOOKUP pParent = pCur->pParent;
2103	Assert(pCur->iParent == (pParent ? pParent->cChildren - 1 : UINT16_MAX));
2104
2105	RTMemFree(pCur->papChildren);
2106	pCur->papChildren = NULL;
2107	RTMemFree(pCur);
2108
2109	pCur = pParent;
2110	if (!pCur)
2111	break;
2112	pCur->papChildren[--pCur->cChildren] = NULL;
2113	}
2114	}
2115	}
2116
2117
2118	/**
2119	* Internal worker for the different register calls.
2120	*
2121	* @returns VBox status code.
2122	* @param pUVM Pointer to the user mode VM structure.
2123	* @param pvSample Pointer to the sample.
2124	* @param pfnReset Callback for resetting the sample. NULL should be used if the sample can't be reset.
2125	* @param pfnPrint Print the sample.
2126	* @param enmType Sample type. This indicates what pvSample is pointing at.
2127	* @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
2128	* @param pszName The sample name format string.
2129	* @param enmUnit Sample unit.
2130	* @param pszDesc Sample description.
2131	* @param iRefreshGrp The refresh group, STAM_REFRESH_GRP_XXX.
2132	* @remark There is currently no device or driver variant of this API. Add one if it should become necessary!
2133	*/
2134	static int stamR3RegisterU(PUVM pUVM, void *pvSample, PFNSTAMR3CALLBACKRESET pfnReset, PFNSTAMR3CALLBACKPRINT pfnPrint,
2135	STAMTYPE enmType, STAMVISIBILITY enmVisibility,
2136	const char pszName, STAMUNIT enmUnit, const char pszDesc, uint8_t iRefreshGrp)
2137	{
2138	AssertReturn(pszName[0] == '/', VERR_INVALID_NAME);
2139	AssertReturn(pszName[1] != '/' && pszName[1], VERR_INVALID_NAME);
2140	uint32_t const cchName = (uint32_t)strlen(pszName);
2141	AssertReturn(cchName <= STAM_MAX_NAME_LEN, VERR_OUT_OF_RANGE);
2142	AssertReturn(pszName[cchName - 1] != '/', VERR_INVALID_NAME);
2143	AssertReturn(memchr(pszName, '\\', cchName) == NULL, VERR_INVALID_NAME);
2144	AssertReturn(iRefreshGrp == STAM_REFRESH_GRP_NONE \|\| iRefreshGrp < 64, VERR_INVALID_PARAMETER);
2145
2146	STAM_LOCK_WR(pUVM);
2147
2148	/*
2149	* Look up the tree location, populating the lookup tree as we walk it.
2150	*/
2151	PSTAMLOOKUP pLookup = pUVM->stam.s.pRoot; Assert(pLookup);
2152	uint32_t offName = 1;
2153	for (;;)
2154	{
2155	/* Get the next part of the path. */
2156	const char *pszStart = &pszName[offName];
2157	const char *pszEnd = strchr(pszStart, '/');
2158	uint32_t cch = pszEnd ? (uint32_t)(pszEnd - pszStart) : cchName - offName;
2159	if (cch == 0)
2160	{
2161	STAM_UNLOCK_WR(pUVM);
2162	AssertMsgFailed(("No double or trailing slashes are allowed: '%s'\n", pszName));
2163	return VERR_INVALID_NAME;
2164	}
2165
2166	/* Do the looking up. */
2167	uint32_t iChild = 0;
2168	PSTAMLOOKUP pChild = stamR3LookupFindChild(pLookup, pszStart, cch, &iChild);
2169	if (!pChild)
2170	{
2171	pChild = stamR3LookupNewChild(pLookup, pszStart, cch, offName, iChild);
2172	if (!pChild)
2173	{
2174	STAM_UNLOCK_WR(pUVM);
2175	return VERR_NO_MEMORY;
2176	}
2177	}
2178
2179	/* Advance. */
2180	pLookup = pChild;
2181	if (!pszEnd)
2182	break;
2183	offName += cch + 1;
2184	}
2185	if (pLookup->pDesc)
2186	{
2187	STAM_UNLOCK_WR(pUVM);
2188	AssertMsgFailed(("Duplicate sample name: %s\n", pszName));
2189	return VERR_ALREADY_EXISTS;
2190	}
2191
2192	PSTAMDESC pCur = stamR3LookupFindNextWithDesc(pLookup);
2193
2194	/*
2195	* Check that the name doesn't screw up sorting order when taking
2196	* slashes into account. The QT GUI makes some assumptions.
2197	* Problematic chars are: !"#$%&'()*+,-.
2198	*/
2199	#ifdef VBOX_STRICT
2200	Assert(pszName[0] == '/');
2201	PSTAMDESC pPrev = pCur
2202	? RTListGetPrev(&pUVM->stam.s.List, pCur, STAMDESC, ListEntry)
2203	: RTListGetLast(&pUVM->stam.s.List, STAMDESC, ListEntry);
2204	Assert(!pPrev \|\| strcmp(pszName, pPrev->pszName) > 0);
2205	Assert(!pCur \|\| strcmp(pszName, pCur->pszName) < 0);
2206	Assert(!pPrev \|\| stamR3SlashCompare(pPrev->pszName, pszName) < 0);
2207	Assert(!pCur \|\| stamR3SlashCompare(pCur->pszName, pszName) > 0);
2208
2209	/*
2210	* Check alignment requirements.
2211	*/
2212	switch (enmType)
2213	{
2214	/* 8 byte / 64-bit */
2215	case STAMTYPE_U64:
2216	case STAMTYPE_U64_RESET:
2217	case STAMTYPE_X64:
2218	case STAMTYPE_X64_RESET:
2219	case STAMTYPE_COUNTER:
2220	case STAMTYPE_PROFILE:
2221	case STAMTYPE_PROFILE_ADV:
2222	AssertMsg(!((uintptr_t)pvSample & 7), ("%p - %s\n", pvSample, pszName));
2223	break;
2224
2225	/* 4 byte / 32-bit */
2226	case STAMTYPE_RATIO_U32:
2227	case STAMTYPE_RATIO_U32_RESET:
2228	case STAMTYPE_U32:
2229	case STAMTYPE_U32_RESET:
2230	case STAMTYPE_X32:
2231	case STAMTYPE_X32_RESET:
2232	AssertMsg(!((uintptr_t)pvSample & 3), ("%p - %s\n", pvSample, pszName));
2233	break;
2234
2235	/* 2 byte / 32-bit */
2236	case STAMTYPE_U16:
2237	case STAMTYPE_U16_RESET:
2238	case STAMTYPE_X16:
2239	case STAMTYPE_X16_RESET:
2240	AssertMsg(!((uintptr_t)pvSample & 1), ("%p - %s\n", pvSample, pszName));
2241	break;
2242
2243	/* 1 byte / 8-bit / unaligned */
2244	case STAMTYPE_U8:
2245	case STAMTYPE_U8_RESET:
2246	case STAMTYPE_X8:
2247	case STAMTYPE_X8_RESET:
2248	case STAMTYPE_BOOL:
2249	case STAMTYPE_BOOL_RESET:
2250	case STAMTYPE_CALLBACK:
2251	case STAMTYPE_INTERNAL_SUM:
2252	case STAMTYPE_INTERNAL_PCT_OF_SUM:
2253	break;
2254
2255	default:
2256	AssertMsgFailed(("%d\n", enmType));
2257	break;
2258	}
2259	#endif /* VBOX_STRICT */
2260
2261	/*
2262	* Create a new node and insert it at the current location.
2263	*/
2264	int rc;
2265	size_t cbDesc = pszDesc ? strlen(pszDesc) + 1 : 0;
2266	PSTAMDESC pNew = (PSTAMDESC)RTMemAlloc(sizeof(*pNew) + cchName + 1 + cbDesc);
2267	if (pNew)
2268	{
2269	pNew->pszName = (char )memcpy((char )(pNew + 1), pszName, cchName + 1);
2270	pNew->enmType = enmType;
2271	pNew->enmVisibility = enmVisibility;
2272	if (enmType != STAMTYPE_CALLBACK)
2273	pNew->u.pv = pvSample;
2274	else
2275	{
2276	pNew->u.Callback.pvSample = pvSample;
2277	pNew->u.Callback.pfnReset = pfnReset;
2278	pNew->u.Callback.pfnPrint = pfnPrint;
2279	}
2280	pNew->enmUnit = enmUnit;
2281	pNew->iRefreshGroup = iRefreshGrp;
2282	pNew->pszDesc = NULL;
2283	if (pszDesc)
2284	pNew->pszDesc = (char )memcpy((char )(pNew + 1) + cchName + 1, pszDesc, cbDesc);
2285
2286	if (pCur)
2287	RTListNodeInsertBefore(&pCur->ListEntry, &pNew->ListEntry);
2288	else
2289	RTListAppend(&pUVM->stam.s.List, &pNew->ListEntry);
2290
2291	pNew->pLookup = pLookup;
2292	pLookup->pDesc = pNew;
2293	stamR3LookupIncUsage(pLookup);
2294
2295	stamR3ResetOne(pNew, pUVM->pVM);
2296	rc = VINF_SUCCESS;
2297	}
2298	else
2299	rc = VERR_NO_MEMORY;
2300
2301	STAM_UNLOCK_WR(pUVM);
2302	return rc;
2303	}
2304
2305
2306	/**
2307	* Destroys the statistics descriptor, unlinking it and freeing all resources.
2308	*
2309	* @returns VINF_SUCCESS
2310	* @param pCur The descriptor to destroy.
2311	*/
2312	static int stamR3DestroyDesc(PSTAMDESC pCur)
2313	{
2314	RTListNodeRemove(&pCur->ListEntry);
2315	pCur->pLookup->pDesc = NULL; /** @todo free lookup nodes once it's working. */
2316	stamR3LookupDecUsage(pCur->pLookup);
2317	stamR3LookupMaybeFree(pCur->pLookup);
2318	if ( pCur->enmType != STAMTYPE_INTERNAL_SUM
2319	&& pCur->enmType != STAMTYPE_INTERNAL_PCT_OF_SUM)
2320	{ /* likely */ }
2321	else
2322	RTMemFree(pCur->u.pSum);
2323	RTMemFree(pCur);
2324
2325	return VINF_SUCCESS;
2326	}
2327
2328
2329	/**
2330	* Deregisters a sample previously registered by STAR3Register() given its
2331	* address.
2332	*
2333	* This is intended used for devices which can be unplugged and for
2334	* temporary samples.
2335	*
2336	* @returns VBox status code.
2337	* @param pUVM Pointer to the user mode VM structure.
2338	* @param pvSample Pointer to the sample registered with STAMR3Register().
2339	*/
2340	VMMR3DECL(int) STAMR3DeregisterByAddr(PUVM pUVM, void *pvSample)
2341	{
2342	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2343
2344	/* This is a complete waste of time when shutting down. */
2345	VMSTATE enmState = VMR3GetStateU(pUVM);
2346	if (enmState >= VMSTATE_DESTROYING)
2347	return VINF_SUCCESS;
2348
2349	STAM_LOCK_WR(pUVM);
2350
2351	/*
2352	* Search for it.
2353	*/
2354	int rc = VERR_INVALID_HANDLE;
2355	PSTAMDESC pCur, pNext;
2356	RTListForEachSafe(&pUVM->stam.s.List, pCur, pNext, STAMDESC, ListEntry)
2357	{
2358	if (pCur->u.pv == pvSample)
2359	rc = stamR3DestroyDesc(pCur);
2360	}
2361
2362	STAM_UNLOCK_WR(pUVM);
2363	return rc;
2364	}
2365
2366
2367	/**
2368	* Worker for STAMR3Deregister, STAMR3DeregisterV and STAMR3DeregisterF.
2369	*
2370	* @returns VBox status code.
2371	* @retval VWRN_NOT_FOUND if no matching names found.
2372	*
2373	* @param pUVM Pointer to the user mode VM structure.
2374	* @param pszPat The name pattern.
2375	*/
2376	static int stamR3DeregisterByPattern(PUVM pUVM, const char *pszPat)
2377	{
2378	Assert(!strchr(pszPat, '\|')); /* single pattern! */
2379
2380	int rc = VWRN_NOT_FOUND;
2381	STAM_LOCK_WR(pUVM);
2382
2383	PSTAMDESC pLast;
2384	PSTAMDESC pCur = stamR3LookupFindPatternDescRange(pUVM->stam.s.pRoot, &pUVM->stam.s.List, pszPat, &pLast);
2385	if (pCur)
2386	{
2387	for (;;)
2388	{
2389	PSTAMDESC pNext = RTListNodeGetNext(&pCur->ListEntry, STAMDESC, ListEntry);
2390
2391	if (RTStrSimplePatternMatch(pszPat, pCur->pszName))
2392	rc = stamR3DestroyDesc(pCur);
2393
2394	/* advance. */
2395	if (pCur == pLast)
2396	break;
2397	pCur = pNext;
2398	}
2399	Assert(pLast);
2400	}
2401	else
2402	Assert(!pLast);
2403
2404	STAM_UNLOCK_WR(pUVM);
2405	return rc;
2406	}
2407
2408
2409	/**
2410	* Deregister zero or more samples given a (single) pattern matching their
2411	* names.
2412	*
2413	* @returns VBox status code.
2414	* @param pUVM Pointer to the user mode VM structure.
2415	* @param pszPat The name pattern.
2416	* @sa STAMR3DeregisterF, STAMR3DeregisterV
2417	*/
2418	VMMR3DECL(int) STAMR3Deregister(PUVM pUVM, const char *pszPat)
2419	{
2420	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2421
2422	/* This is a complete waste of time when shutting down. */
2423	VMSTATE enmState = VMR3GetStateU(pUVM);
2424	if (enmState >= VMSTATE_DESTROYING)
2425	return VINF_SUCCESS;
2426
2427	return stamR3DeregisterByPattern(pUVM, pszPat);
2428	}
2429
2430
2431	/**
2432	* Deregister zero or more samples given a (single) pattern matching their
2433	* names.
2434	*
2435	* @returns VBox status code.
2436	* @param pUVM Pointer to the user mode VM structure.
2437	* @param pszPatFmt The name pattern format string.
2438	* @param ... Format string arguments.
2439	* @sa STAMR3Deregister, STAMR3DeregisterV
2440	*/
2441	VMMR3DECL(int) STAMR3DeregisterF(PUVM pUVM, const char *pszPatFmt, ...)
2442	{
2443	va_list va;
2444	va_start(va, pszPatFmt);
2445	int rc = STAMR3DeregisterV(pUVM, pszPatFmt, va);
2446	va_end(va);
2447	return rc;
2448	}
2449
2450
2451	/**
2452	* Deregister zero or more samples given a (single) pattern matching their
2453	* names.
2454	*
2455	* @returns VBox status code.
2456	* @param pUVM Pointer to the user mode VM structure.
2457	* @param pszPatFmt The name pattern format string.
2458	* @param va Format string arguments.
2459	* @sa STAMR3Deregister, STAMR3DeregisterF
2460	*/
2461	VMMR3DECL(int) STAMR3DeregisterV(PUVM pUVM, const char *pszPatFmt, va_list va)
2462	{
2463	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2464
2465	/* This is a complete waste of time when shutting down. */
2466	VMSTATE enmState = VMR3GetStateU(pUVM);
2467	if (enmState >= VMSTATE_DESTROYING)
2468	return VINF_SUCCESS;
2469
2470	char szPat[STAM_MAX_NAME_LEN + 8];
2471	size_t cchPat = RTStrPrintfV(szPat, sizeof(szPat), pszPatFmt, va);
2472	AssertReturn(cchPat <= STAM_MAX_NAME_LEN, VERR_OUT_OF_RANGE);
2473
2474	return stamR3DeregisterByPattern(pUVM, szPat);
2475	}
2476
2477
2478	/**
2479	* Deregister zero or more samples given their name prefix.
2480	*
2481	* @returns VBox status code.
2482	* @param pUVM Pointer to the user mode VM structure.
2483	* @param pszPrefix The name prefix of the samples to remove.
2484	* @sa STAMR3Deregister, STAMR3DeregisterF, STAMR3DeregisterV
2485	*/
2486	VMMR3DECL(int) STAMR3DeregisterByPrefix(PUVM pUVM, const char *pszPrefix)
2487	{
2488	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2489
2490	/* This is a complete waste of time when shutting down. */
2491	VMSTATE enmState = VMR3GetStateU(pUVM);
2492	if (enmState >= VMSTATE_DESTROYING)
2493	return VINF_SUCCESS;
2494
2495	size_t const cchPrefix = strlen(pszPrefix);
2496	int rc = VWRN_NOT_FOUND;
2497	STAM_LOCK_WR(pUVM);
2498
2499	PSTAMDESC pLast;
2500	PSTAMDESC pCur = stamR3LookupFindByPrefixRange(pUVM->stam.s.pRoot, pszPrefix, (uint32_t)cchPrefix, &pLast);
2501	if (pCur)
2502	for (;;)
2503	{
2504	PSTAMDESC const pNext = RTListNodeGetNext(&pCur->ListEntry, STAMDESC, ListEntry);
2505	Assert(strncmp(pCur->pszName, pszPrefix, cchPrefix) == 0);
2506
2507	rc = stamR3DestroyDesc(pCur);
2508
2509	/* advance. */
2510	if (pCur == pLast)
2511	break;
2512	pCur = pNext;
2513	}
2514
2515	STAM_UNLOCK_WR(pUVM);
2516	return rc;
2517	}
2518
2519
2520	/**
2521	* Resets statistics for the specified VM.
2522	* It's possible to select a subset of the samples.
2523	*
2524	* @returns VBox status code. (Basically, it cannot fail.)
2525	* @param pUVM The user mode VM handle.
2526	* @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
2527	* If NULL all samples are reset.
2528	* @remarks Don't confuse this with the other 'XYZR3Reset' methods, it's not called at VM reset.
2529	*/
2530	VMMR3DECL(int) STAMR3Reset(PUVM pUVM, const char *pszPat)
2531	{
2532	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2533	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
2534
2535	int rc = VINF_SUCCESS;
2536
2537	/* ring-0 */
2538	GVMMRESETSTATISTICSSREQ GVMMReq;
2539	GMMRESETSTATISTICSSREQ GMMReq;
2540	bool fGVMMMatched = (!pszPat \|\| !*pszPat) && !SUPR3IsDriverless();
2541	bool fGMMMatched = fGVMMMatched;
2542	if (fGVMMMatched)
2543	{
2544	memset(&GVMMReq.Stats, 0xff, sizeof(GVMMReq.Stats));
2545	memset(&GMMReq.Stats, 0xff, sizeof(GMMReq.Stats));
2546	}
2547	else
2548	{
2549	char *pszCopy;
2550	unsigned cExpressions;
2551	char **papszExpressions = stamR3SplitPattern(pszPat, &cExpressions, &pszCopy);
2552	if (!papszExpressions)
2553	return VERR_NO_MEMORY;
2554
2555	/* GVMM */
2556	RT_ZERO(GVMMReq.Stats);
2557	for (unsigned i = 0; i < RT_ELEMENTS(g_aGVMMStats); i++)
2558	if (stamR3MultiMatch(papszExpressions, cExpressions, NULL, g_aGVMMStats[i].pszName))
2559	{
2560	((uint8_t )&GVMMReq.Stats + g_aGVMMStats[i].offVar) = 0xff;
2561	fGVMMMatched = true;
2562	}
2563	if (!fGVMMMatched)
2564	{
2565	/** @todo match cpu leaves some rainy day. */
2566	}
2567
2568	/* GMM */
2569	RT_ZERO(GMMReq.Stats);
2570	for (unsigned i = 0; i < RT_ELEMENTS(g_aGMMStats); i++)
2571	if (stamR3MultiMatch(papszExpressions, cExpressions, NULL, g_aGMMStats[i].pszName))
2572	{
2573	((uint8_t )&GMMReq.Stats + g_aGMMStats[i].offVar) = 0xff;
2574	fGMMMatched = true;
2575	}
2576
2577	RTMemTmpFree(papszExpressions);
2578	RTStrFree(pszCopy);
2579	}
2580
2581	STAM_LOCK_WR(pUVM);
2582
2583	if (fGVMMMatched)
2584	{
2585	PVM pVM = pUVM->pVM;
2586	GVMMReq.Hdr.cbReq = sizeof(GVMMReq);
2587	GVMMReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
2588	GVMMReq.pSession = pVM->pSession;
2589	rc = SUPR3CallVMMR0Ex(VMCC_GET_VMR0_FOR_CALL(pVM), NIL_VMCPUID, VMMR0_DO_GVMM_RESET_STATISTICS, 0, &GVMMReq.Hdr);
2590	}
2591
2592	if (fGMMMatched)
2593	{
2594	PVM pVM = pUVM->pVM;
2595	GMMReq.Hdr.cbReq = sizeof(GMMReq);
2596	GMMReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
2597	GMMReq.pSession = pVM->pSession;
2598	rc = SUPR3CallVMMR0Ex(VMCC_GET_VMR0_FOR_CALL(pVM), NIL_VMCPUID, VMMR0_DO_GMM_RESET_STATISTICS, 0, &GMMReq.Hdr);
2599	}
2600
2601	/* and the reset */
2602	stamR3EnumU(pUVM, pszPat, false /* fUpdateRing0 */, stamR3ResetOne, pUVM->pVM);
2603
2604	STAM_UNLOCK_WR(pUVM);
2605	return rc;
2606	}
2607
2608
2609	/**
2610	* Resets one statistics sample.
2611	* Callback for stamR3EnumU().
2612	*
2613	* @returns VINF_SUCCESS
2614	* @param pDesc Pointer to the current descriptor.
2615	* @param pvArg User argument - Pointer to the VM.
2616	*/
2617	static int stamR3ResetOne(PSTAMDESC pDesc, void *pvArg)
2618	{
2619	switch (pDesc->enmType)
2620	{
2621	case STAMTYPE_COUNTER:
2622	ASMAtomicXchgU64(&pDesc->u.pCounter->c, 0);
2623	break;
2624
2625	case STAMTYPE_PROFILE:
2626	case STAMTYPE_PROFILE_ADV:
2627	ASMAtomicXchgU64(&pDesc->u.pProfile->cPeriods, 0);
2628	ASMAtomicXchgU64(&pDesc->u.pProfile->cTicks, 0);
2629	ASMAtomicXchgU64(&pDesc->u.pProfile->cTicksMax, 0);
2630	ASMAtomicXchgU64(&pDesc->u.pProfile->cTicksMin, UINT64_MAX);
2631	break;
2632
2633	case STAMTYPE_RATIO_U32_RESET:
2634	ASMAtomicXchgU32(&pDesc->u.pRatioU32->u32A, 0);
2635	ASMAtomicXchgU32(&pDesc->u.pRatioU32->u32B, 0);
2636	break;
2637
2638	case STAMTYPE_CALLBACK:
2639	if (pDesc->u.Callback.pfnReset)
2640	pDesc->u.Callback.pfnReset((PVM)pvArg, pDesc->u.Callback.pvSample);
2641	break;
2642
2643	case STAMTYPE_U8_RESET:
2644	case STAMTYPE_X8_RESET:
2645	ASMAtomicXchgU8(pDesc->u.pu8, 0);
2646	break;
2647
2648	case STAMTYPE_U16_RESET:
2649	case STAMTYPE_X16_RESET:
2650	ASMAtomicXchgU16(pDesc->u.pu16, 0);
2651	break;
2652
2653	case STAMTYPE_U32_RESET:
2654	case STAMTYPE_X32_RESET:
2655	ASMAtomicXchgU32(pDesc->u.pu32, 0);
2656	break;
2657
2658	case STAMTYPE_U64_RESET:
2659	case STAMTYPE_X64_RESET:
2660	ASMAtomicXchgU64(pDesc->u.pu64, 0);
2661	break;
2662
2663	case STAMTYPE_BOOL_RESET:
2664	ASMAtomicXchgBool(pDesc->u.pf, false);
2665	break;
2666
2667	/* These are custom and will not be touched. */
2668	case STAMTYPE_U8:
2669	case STAMTYPE_X8:
2670	case STAMTYPE_U16:
2671	case STAMTYPE_X16:
2672	case STAMTYPE_U32:
2673	case STAMTYPE_X32:
2674	case STAMTYPE_U64:
2675	case STAMTYPE_X64:
2676	case STAMTYPE_RATIO_U32:
2677	case STAMTYPE_BOOL:
2678	case STAMTYPE_INTERNAL_SUM:
2679	case STAMTYPE_INTERNAL_PCT_OF_SUM:
2680	break;
2681
2682	default:
2683	AssertMsgFailed(("enmType=%d\n", pDesc->enmType));
2684	break;
2685	}
2686	NOREF(pvArg);
2687	return VINF_SUCCESS;
2688	}
2689
2690
2691	/**
2692	* Get a snapshot of the statistics.
2693	* It's possible to select a subset of the samples.
2694	*
2695	* @returns VBox status code. (Basically, it cannot fail.)
2696	* @param pUVM The user mode VM handle.
2697	* @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
2698	* If NULL all samples are reset.
2699	* @param fWithDesc Whether to include the descriptions.
2700	* @param ppszSnapshot Where to store the pointer to the snapshot data.
2701	* The format of the snapshot should be XML, but that will have to be discussed
2702	* when this function is implemented.
2703	* The returned pointer must be freed by calling STAMR3SnapshotFree().
2704	* @param pcchSnapshot Where to store the size of the snapshot data. (Excluding the trailing '\0')
2705	*/
2706	VMMR3DECL(int) STAMR3Snapshot(PUVM pUVM, const char pszPat, char ppszSnapshot, size_t pcchSnapshot, bool fWithDesc)
2707	{
2708	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2709	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
2710
2711	STAMR3SNAPSHOTONE State = { NULL, NULL, NULL, pUVM->pVM, 0, VINF_SUCCESS, fWithDesc };
2712
2713	/*
2714	* Write the XML header.
2715	*/
2716	/** @todo Make this proper & valid XML. */
2717	stamR3SnapshotPrintf(&State, "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n");
2718
2719	/*
2720	* Write the content.
2721	*/
2722	stamR3SnapshotPrintf(&State, "<Statistics>\n");
2723	int rc = stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3SnapshotOne, &State);
2724	stamR3SnapshotPrintf(&State, "</Statistics>\n");
2725
2726	if (RT_SUCCESS(rc))
2727	rc = State.rc;
2728	else
2729	{
2730	RTMemFree(State.pszStart);
2731	State.pszStart = State.pszEnd = State.psz = NULL;
2732	State.cbAllocated = 0;
2733	}
2734
2735	/*
2736	* Done.
2737	*/
2738	*ppszSnapshot = State.pszStart;
2739	if (pcchSnapshot)
2740	*pcchSnapshot = State.psz - State.pszStart;
2741	return rc;
2742	}
2743
2744
2745	/**
2746	* stamR3EnumU callback employed by STAMR3Snapshot.
2747	*
2748	* @returns VBox status code, but it's interpreted as 0 == success / !0 == failure by enmR3Enum.
2749	* @param pDesc The sample.
2750	* @param pvArg The snapshot status structure.
2751	*/
2752	static int stamR3SnapshotOne(PSTAMDESC pDesc, void *pvArg)
2753	{
2754	PSTAMR3SNAPSHOTONE pThis = (PSTAMR3SNAPSHOTONE)pvArg;
2755
2756	switch (pDesc->enmType)
2757	{
2758	case STAMTYPE_COUNTER:
2759	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pDesc->u.pCounter->c == 0)
2760	return VINF_SUCCESS;
2761	stamR3SnapshotPrintf(pThis, "<Counter c=\"%lld\"", pDesc->u.pCounter->c);
2762	break;
2763
2764	case STAMTYPE_PROFILE:
2765	case STAMTYPE_PROFILE_ADV:
2766	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pDesc->u.pProfile->cPeriods == 0)
2767	return VINF_SUCCESS;
2768	stamR3SnapshotPrintf(pThis, "<Profile cPeriods=\"%lld\" cTicks=\"%lld\" cTicksMin=\"%lld\" cTicksMax=\"%lld\"",
2769	pDesc->u.pProfile->cPeriods, pDesc->u.pProfile->cTicks, pDesc->u.pProfile->cTicksMin,
2770	pDesc->u.pProfile->cTicksMax);
2771	break;
2772
2773	case STAMTYPE_RATIO_U32:
2774	case STAMTYPE_RATIO_U32_RESET:
2775	if (pDesc->enmVisibility == STAMVISIBILITY_USED && !pDesc->u.pRatioU32->u32A && !pDesc->u.pRatioU32->u32B)
2776	return VINF_SUCCESS;
2777	stamR3SnapshotPrintf(pThis, "<Ratio32 u32A=\"%lld\" u32B=\"%lld\"",
2778	pDesc->u.pRatioU32->u32A, pDesc->u.pRatioU32->u32B);
2779	break;
2780
2781	case STAMTYPE_CALLBACK:
2782	{
2783	char szBuf[512];
2784	pDesc->u.Callback.pfnPrint(pThis->pVM, pDesc->u.Callback.pvSample, szBuf, sizeof(szBuf));
2785	stamR3SnapshotPrintf(pThis, "<Callback val=\"%s\"", szBuf);
2786	break;
2787	}
2788
2789	case STAMTYPE_U8:
2790	case STAMTYPE_U8_RESET:
2791	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu8 == 0)
2792	return VINF_SUCCESS;
2793	stamR3SnapshotPrintf(pThis, "<U8 val=\"%u\"", *pDesc->u.pu8);
2794	break;
2795
2796	case STAMTYPE_X8:
2797	case STAMTYPE_X8_RESET:
2798	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu8 == 0)
2799	return VINF_SUCCESS;
2800	stamR3SnapshotPrintf(pThis, "<X8 val=\"%#x\"", *pDesc->u.pu8);
2801	break;
2802
2803	case STAMTYPE_U16:
2804	case STAMTYPE_U16_RESET:
2805	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu16 == 0)
2806	return VINF_SUCCESS;
2807	stamR3SnapshotPrintf(pThis, "<U16 val=\"%u\"", *pDesc->u.pu16);
2808	break;
2809
2810	case STAMTYPE_X16:
2811	case STAMTYPE_X16_RESET:
2812	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu16 == 0)
2813	return VINF_SUCCESS;
2814	stamR3SnapshotPrintf(pThis, "<X16 val=\"%#x\"", *pDesc->u.pu16);
2815	break;
2816
2817	case STAMTYPE_U32:
2818	case STAMTYPE_U32_RESET:
2819	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu32 == 0)
2820	return VINF_SUCCESS;
2821	stamR3SnapshotPrintf(pThis, "<U32 val=\"%u\"", *pDesc->u.pu32);
2822	break;
2823
2824	case STAMTYPE_X32:
2825	case STAMTYPE_X32_RESET:
2826	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu32 == 0)
2827	return VINF_SUCCESS;
2828	stamR3SnapshotPrintf(pThis, "<X32 val=\"%#x\"", *pDesc->u.pu32);
2829	break;
2830
2831	case STAMTYPE_U64:
2832	case STAMTYPE_U64_RESET:
2833	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu64 == 0)
2834	return VINF_SUCCESS;
2835	stamR3SnapshotPrintf(pThis, "<U64 val=\"%llu\"", *pDesc->u.pu64);
2836	break;
2837
2838	case STAMTYPE_X64:
2839	case STAMTYPE_X64_RESET:
2840	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu64 == 0)
2841	return VINF_SUCCESS;
2842	stamR3SnapshotPrintf(pThis, "<X64 val=\"%#llx\"", *pDesc->u.pu64);
2843	break;
2844
2845	case STAMTYPE_BOOL:
2846	case STAMTYPE_BOOL_RESET:
2847	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pf == false)
2848	return VINF_SUCCESS;
2849	stamR3SnapshotPrintf(pThis, "<BOOL val=\"%RTbool\"", *pDesc->u.pf);
2850	break;
2851
2852	case STAMTYPE_INTERNAL_SUM:
2853	{
2854	PSTAMSUMSAMPLE const pSum = pDesc->u.pSum;
2855	stamR3SumRefresh(pSum);
2856	switch (pSum->enmType)
2857	{
2858	case STAMTYPE_COUNTER:
2859	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pSum->u.Counter.c == 0)
2860	return VINF_SUCCESS;
2861	stamR3SnapshotPrintf(pThis, "<Counter c=\"%lld\"", pSum->u.Counter.c);
2862	break;
2863
2864	case STAMTYPE_PROFILE:
2865	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pSum->u.Profile.cPeriods == 0)
2866	return VINF_SUCCESS;
2867	stamR3SnapshotPrintf(pThis, "<Profile cPeriods=\"%lld\" cTicks=\"%lld\" cTicksMin=\"%lld\" cTicksMax=\"%lld\"",
2868	pSum->u.Profile.cPeriods, pSum->u.Profile.cTicks, pSum->u.Profile.cTicksMin,
2869	pSum->u.Profile.cTicksMax);
2870	break;
2871
2872	default:
2873	AssertMsgFailedReturn(("%d\n", pSum->enmType), VINF_SUCCESS);
2874	}
2875	break;
2876	}
2877
2878	case STAMTYPE_INTERNAL_PCT_OF_SUM:
2879	{
2880	PSTAMSUMSAMPLE const pSum = pDesc->u.pSum;
2881	stamR3PctOfSumRefresh(pDesc, pSum);
2882	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pSum->u.Counter.c == 0)
2883	return VINF_SUCCESS;
2884	stamR3SnapshotPrintf(pThis, "<Counter c=\"%lld\"", pSum->u.Counter.c);
2885	break;
2886	}
2887
2888	default:
2889	AssertMsgFailedReturn(("%d\n", pDesc->enmType), VINF_SUCCESS);
2890	}
2891
2892	stamR3SnapshotPrintf(pThis, " unit=\"%s\"", STAMR3GetUnit(pDesc->enmUnit));
2893
2894	switch (pDesc->enmVisibility)
2895	{
2896	default:
2897	case STAMVISIBILITY_ALWAYS:
2898	break;
2899	case STAMVISIBILITY_USED:
2900	stamR3SnapshotPrintf(pThis, " vis=\"used\"");
2901	break;
2902	case STAMVISIBILITY_NOT_GUI:
2903	stamR3SnapshotPrintf(pThis, " vis=\"not-gui\"");
2904	break;
2905	}
2906
2907	stamR3SnapshotPrintf(pThis, " name=\"%s\"", pDesc->pszName);
2908
2909	if (pThis->fWithDesc && pDesc->pszDesc)
2910	{
2911	/*
2912	* The description is a bit tricky as it may include chars that
2913	* xml requires to be escaped.
2914	*/
2915	const char *pszBadChar = strpbrk(pDesc->pszDesc, "&<>\"'");
2916	if (!pszBadChar)
2917	return stamR3SnapshotPrintf(pThis, " desc=\"%s\"/>\n", pDesc->pszDesc);
2918
2919	stamR3SnapshotPrintf(pThis, " desc=\"");
2920	const char *pszCur = pDesc->pszDesc;
2921	do
2922	{
2923	stamR3SnapshotPrintf(pThis, "%.*s", pszBadChar - pszCur, pszCur);
2924	switch (*pszBadChar)
2925	{
2926	case '&': stamR3SnapshotPrintf(pThis, "&"); break;
2927	case '<': stamR3SnapshotPrintf(pThis, "<"); break;
2928	case '>': stamR3SnapshotPrintf(pThis, ">"); break;
2929	case '"': stamR3SnapshotPrintf(pThis, """); break;
2930	case '\'': stamR3SnapshotPrintf(pThis, "'"); break;
2931	default: AssertMsgFailed(("%c", *pszBadChar)); break;
2932	}
2933	pszCur = pszBadChar + 1;
2934	pszBadChar = strpbrk(pszCur, "&<>\"'");
2935	} while (pszBadChar);
2936	return stamR3SnapshotPrintf(pThis, "%s\"/>\n", pszCur);
2937	}
2938	return stamR3SnapshotPrintf(pThis, "/>\n");
2939	}
2940
2941
2942	/**
2943	* Output callback for stamR3SnapshotPrintf.
2944	*
2945	* @returns number of bytes written.
2946	* @param pvArg The snapshot status structure.
2947	* @param pach Pointer to an array of characters (bytes).
2948	* @param cch The number or chars (bytes) to write from the array.
2949	*/
2950	static DECLCALLBACK(size_t) stamR3SnapshotOutput(void pvArg, const char pach, size_t cch)
2951	{
2952	PSTAMR3SNAPSHOTONE pThis = (PSTAMR3SNAPSHOTONE)pvArg;
2953
2954	/*
2955	* Make sure we've got space for it.
2956	*/
2957	if (RT_UNLIKELY((uintptr_t)pThis->pszEnd - (uintptr_t)pThis->psz < cch + 1))
2958	{
2959	if (RT_FAILURE(pThis->rc))
2960	return 0;
2961
2962	size_t cbNewSize = pThis->cbAllocated;
2963	if (cbNewSize > cch)
2964	cbNewSize *= 2;
2965	else
2966	cbNewSize += RT_ALIGN(cch + 1, 0x1000);
2967	char pszNew = (char )RTMemRealloc(pThis->pszStart, cbNewSize);
2968	if (!pszNew)
2969	{
2970	/*
2971	* Free up immediately, out-of-memory is bad news and this
2972	* isn't an important allocations / API.
2973	*/
2974	pThis->rc = VERR_NO_MEMORY;
2975	RTMemFree(pThis->pszStart);
2976	pThis->pszStart = pThis->pszEnd = pThis->psz = NULL;
2977	pThis->cbAllocated = 0;
2978	return 0;
2979	}
2980
2981	pThis->psz = pszNew + (pThis->psz - pThis->pszStart);
2982	pThis->pszStart = pszNew;
2983	pThis->pszEnd = pszNew + cbNewSize;
2984	pThis->cbAllocated = cbNewSize;
2985	}
2986
2987	/*
2988	* Copy the chars to the buffer and terminate it.
2989	*/
2990	if (cch)
2991	{
2992	memcpy(pThis->psz, pach, cch);
2993	pThis->psz += cch;
2994	}
2995	*pThis->psz = '\0';
2996	return cch;
2997	}
2998
2999
3000	/**
3001	* Wrapper around RTStrFormatV for use by the snapshot API.
3002	*
3003	* @returns VBox status code.
3004	* @param pThis The snapshot status structure.
3005	* @param pszFormat The format string.
3006	* @param ... Optional arguments.
3007	*/
3008	static int stamR3SnapshotPrintf(PSTAMR3SNAPSHOTONE pThis, const char *pszFormat, ...)
3009	{
3010	va_list va;
3011	va_start(va, pszFormat);
3012	RTStrFormatV(stamR3SnapshotOutput, pThis, NULL, NULL, pszFormat, va);
3013	va_end(va);
3014	return pThis->rc;
3015	}
3016
3017
3018	/**
3019	* Releases a statistics snapshot returned by STAMR3Snapshot().
3020	*
3021	* @returns VBox status code.
3022	* @param pUVM The user mode VM handle.
3023	* @param pszSnapshot The snapshot data pointer returned by STAMR3Snapshot().
3024	* NULL is allowed.
3025	*/
3026	VMMR3DECL(int) STAMR3SnapshotFree(PUVM pUVM, char *pszSnapshot)
3027	{
3028	if (pszSnapshot)
3029	RTMemFree(pszSnapshot);
3030	NOREF(pUVM);
3031	return VINF_SUCCESS;
3032	}
3033
3034
3035	/**
3036	* Dumps the selected statistics to the log.
3037	*
3038	* @returns VBox status code.
3039	* @param pUVM Pointer to the user mode VM structure.
3040	* @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
3041	* If NULL all samples are written to the log.
3042	*/
3043	VMMR3DECL(int) STAMR3Dump(PUVM pUVM, const char *pszPat)
3044	{
3045	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3046	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
3047
3048	STAMR3PRINTONEARGS Args;
3049	Args.pUVM = pUVM;
3050	Args.pvArg = NULL;
3051	Args.pfnPrintf = stamR3EnumLogPrintf;
3052
3053	stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3PrintOne, &Args);
3054	return VINF_SUCCESS;
3055	}
3056
3057
3058	/**
3059	* Prints to the log.
3060	*
3061	* @param pArgs Pointer to the print one argument structure.
3062	* @param pszFormat Format string.
3063	* @param ... Format arguments.
3064	*/
3065	static DECLCALLBACK(void) stamR3EnumLogPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...)
3066	{
3067	va_list va;
3068	va_start(va, pszFormat);
3069	RTLogPrintfV(pszFormat, va);
3070	va_end(va);
3071	NOREF(pArgs);
3072	}
3073
3074
3075	/**
3076	* Dumps the selected statistics to the release log.
3077	*
3078	* @returns VBox status code.
3079	* @param pUVM Pointer to the user mode VM structure.
3080	* @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
3081	* If NULL all samples are written to the log.
3082	*/
3083	VMMR3DECL(int) STAMR3DumpToReleaseLog(PUVM pUVM, const char *pszPat)
3084	{
3085	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3086	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
3087
3088	STAMR3PRINTONEARGS Args;
3089	Args.pUVM = pUVM;
3090	Args.pvArg = NULL;
3091	Args.pfnPrintf = stamR3EnumRelLogPrintf;
3092
3093	stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3PrintOne, &Args);
3094	return VINF_SUCCESS;
3095	}
3096
3097	/**
3098	* Prints to the release log.
3099	*
3100	* @param pArgs Pointer to the print one argument structure.
3101	* @param pszFormat Format string.
3102	* @param ... Format arguments.
3103	*/
3104	static DECLCALLBACK(void) stamR3EnumRelLogPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...)
3105	{
3106	va_list va;
3107	va_start(va, pszFormat);
3108	RTLogRelPrintfV(pszFormat, va);
3109	va_end(va);
3110	NOREF(pArgs);
3111	}
3112
3113
3114	/**
3115	* Prints the selected statistics to standard out.
3116	*
3117	* @returns VBox status code.
3118	* @param pUVM The user mode VM handle.
3119	* @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
3120	* If NULL all samples are reset.
3121	*/
3122	VMMR3DECL(int) STAMR3Print(PUVM pUVM, const char *pszPat)
3123	{
3124	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3125	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
3126
3127	STAMR3PRINTONEARGS Args;
3128	Args.pUVM = pUVM;
3129	Args.pvArg = NULL;
3130	Args.pfnPrintf = stamR3EnumPrintf;
3131
3132	stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3PrintOne, &Args);
3133	return VINF_SUCCESS;
3134	}
3135
3136
3137	/**
3138	* Prints to stdout.
3139	*
3140	* @param pArgs Pointer to the print one argument structure.
3141	* @param pszFormat Format string.
3142	* @param ... Format arguments.
3143	*/
3144	static DECLCALLBACK(void) stamR3EnumPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...)
3145	{
3146	va_list va;
3147	va_start(va, pszFormat);
3148	RTPrintfV(pszFormat, va);
3149	va_end(va);
3150	NOREF(pArgs);
3151	}
3152
3153
3154	/**
3155	* Prints one sample.
3156	* Callback for stamR3EnumU().
3157	*
3158	* @returns VINF_SUCCESS
3159	* @param pDesc Pointer to the current descriptor.
3160	* @param pvArg User argument - STAMR3PRINTONEARGS.
3161	*/
3162	static int stamR3PrintOne(PSTAMDESC pDesc, void *pvArg)
3163	{
3164	PSTAMR3PRINTONEARGS pArgs = (PSTAMR3PRINTONEARGS)pvArg;
3165
3166	switch (pDesc->enmType)
3167	{
3168	case STAMTYPE_COUNTER:
3169	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pDesc->u.pCounter->c == 0)
3170	return VINF_SUCCESS;
3171
3172	pArgs->pfnPrintf(pArgs, "%-32s %8llu %s\n", pDesc->pszName, pDesc->u.pCounter->c, STAMR3GetUnit(pDesc->enmUnit));
3173	break;
3174
3175	case STAMTYPE_PROFILE:
3176	case STAMTYPE_PROFILE_ADV:
3177	{
3178	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pDesc->u.pProfile->cPeriods == 0)
3179	return VINF_SUCCESS;
3180
3181	uint64_t const u64 = pDesc->u.pProfile->cPeriods ? pDesc->u.pProfile->cPeriods : 1;
3182	pArgs->pfnPrintf(pArgs, "%-32s %8llu %s (%12llu %s, %7llu %s, max %9llu, min %7lld)\n", pDesc->pszName,
3183	pDesc->u.pProfile->cTicks / u64, STAMR3GetUnit(pDesc->enmUnit),
3184	pDesc->u.pProfile->cTicks, STAMR3GetUnit1(pDesc->enmUnit),
3185	pDesc->u.pProfile->cPeriods, STAMR3GetUnit2(pDesc->enmUnit),
3186	pDesc->u.pProfile->cTicksMax, pDesc->u.pProfile->cTicksMin);
3187	break;
3188	}
3189
3190	case STAMTYPE_RATIO_U32:
3191	case STAMTYPE_RATIO_U32_RESET:
3192	if (pDesc->enmVisibility == STAMVISIBILITY_USED && !pDesc->u.pRatioU32->u32A && !pDesc->u.pRatioU32->u32B)
3193	return VINF_SUCCESS;
3194	pArgs->pfnPrintf(pArgs, "%-32s %8u:%-8u %s\n", pDesc->pszName,
3195	pDesc->u.pRatioU32->u32A, pDesc->u.pRatioU32->u32B, STAMR3GetUnit(pDesc->enmUnit));
3196	break;
3197
3198	case STAMTYPE_CALLBACK:
3199	{
3200	char szBuf[512];
3201	pDesc->u.Callback.pfnPrint(pArgs->pUVM->pVM, pDesc->u.Callback.pvSample, szBuf, sizeof(szBuf));
3202	pArgs->pfnPrintf(pArgs, "%-32s %s %s\n", pDesc->pszName, szBuf, STAMR3GetUnit(pDesc->enmUnit));
3203	break;
3204	}
3205
3206	case STAMTYPE_U8:
3207	case STAMTYPE_U8_RESET:
3208	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu8 == 0)
3209	return VINF_SUCCESS;
3210	pArgs->pfnPrintf(pArgs, "%-32s %8u %s\n", pDesc->pszName, *pDesc->u.pu8, STAMR3GetUnit(pDesc->enmUnit));
3211	break;
3212
3213	case STAMTYPE_X8:
3214	case STAMTYPE_X8_RESET:
3215	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu8 == 0)
3216	return VINF_SUCCESS;
3217	pArgs->pfnPrintf(pArgs, "%-32s %8x %s\n", pDesc->pszName, *pDesc->u.pu8, STAMR3GetUnit(pDesc->enmUnit));
3218	break;
3219
3220	case STAMTYPE_U16:
3221	case STAMTYPE_U16_RESET:
3222	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu16 == 0)
3223	return VINF_SUCCESS;
3224	pArgs->pfnPrintf(pArgs, "%-32s %8u %s\n", pDesc->pszName, *pDesc->u.pu16, STAMR3GetUnit(pDesc->enmUnit));
3225	break;
3226
3227	case STAMTYPE_X16:
3228	case STAMTYPE_X16_RESET:
3229	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu16 == 0)
3230	return VINF_SUCCESS;
3231	pArgs->pfnPrintf(pArgs, "%-32s %8x %s\n", pDesc->pszName, *pDesc->u.pu16, STAMR3GetUnit(pDesc->enmUnit));
3232	break;
3233
3234	case STAMTYPE_U32:
3235	case STAMTYPE_U32_RESET:
3236	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu32 == 0)
3237	return VINF_SUCCESS;
3238	pArgs->pfnPrintf(pArgs, "%-32s %8u %s\n", pDesc->pszName, *pDesc->u.pu32, STAMR3GetUnit(pDesc->enmUnit));
3239	break;
3240
3241	case STAMTYPE_X32:
3242	case STAMTYPE_X32_RESET:
3243	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu32 == 0)
3244	return VINF_SUCCESS;
3245	pArgs->pfnPrintf(pArgs, "%-32s %8x %s\n", pDesc->pszName, *pDesc->u.pu32, STAMR3GetUnit(pDesc->enmUnit));
3246	break;
3247
3248	case STAMTYPE_U64:
3249	case STAMTYPE_U64_RESET:
3250	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu64 == 0)
3251	return VINF_SUCCESS;
3252	pArgs->pfnPrintf(pArgs, "%-32s %8llu %s\n", pDesc->pszName, *pDesc->u.pu64, STAMR3GetUnit(pDesc->enmUnit));
3253	break;
3254
3255	case STAMTYPE_X64:
3256	case STAMTYPE_X64_RESET:
3257	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu64 == 0)
3258	return VINF_SUCCESS;
3259	pArgs->pfnPrintf(pArgs, "%-32s %8llx %s\n", pDesc->pszName, *pDesc->u.pu64, STAMR3GetUnit(pDesc->enmUnit));
3260	break;
3261
3262	case STAMTYPE_BOOL:
3263	case STAMTYPE_BOOL_RESET:
3264	if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pf == false)
3265	return VINF_SUCCESS;
3266	pArgs->pfnPrintf(pArgs, "%-32s %s %s\n", pDesc->pszName, *pDesc->u.pf ? "true " : "false ", STAMR3GetUnit(pDesc->enmUnit));
3267	break;
3268
3269	case STAMTYPE_INTERNAL_SUM:
3270	{
3271	PSTAMSUMSAMPLE const pSum = pDesc->u.pSum;
3272	stamR3SumRefresh(pSum);
3273	switch (pSum->enmType)
3274	{
3275	case STAMTYPE_COUNTER:
3276	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pSum->u.Counter.c == 0)
3277	return VINF_SUCCESS;
3278	pArgs->pfnPrintf(pArgs, "%-32s %8llu %s\n", pDesc->pszName, pSum->u.Counter.c, STAMR3GetUnit(pDesc->enmUnit));
3279	break;
3280
3281	case STAMTYPE_PROFILE:
3282	{
3283	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pSum->u.Profile.cPeriods == 0)
3284	return VINF_SUCCESS;
3285
3286	uint64_t const u64 = pSum->u.Profile.cPeriods ? pSum->u.Profile.cPeriods : 1;
3287	pArgs->pfnPrintf(pArgs, "%-32s %8llu %s (%12llu %s, %7llu %s, max %9llu, min %7lld)\n", pDesc->pszName,
3288	pSum->u.Profile.cTicks / u64, STAMR3GetUnit(pDesc->enmUnit),
3289	pSum->u.Profile.cTicks, STAMR3GetUnit1(pDesc->enmUnit),
3290	pSum->u.Profile.cPeriods, STAMR3GetUnit2(pDesc->enmUnit),
3291	pSum->u.Profile.cTicksMax, pSum->u.Profile.cTicksMin);
3292	break;
3293	}
3294
3295	default:
3296	AssertMsgFailed(("%d\n", pSum->enmType));
3297	break;
3298	}
3299	break;
3300	}
3301
3302	case STAMTYPE_INTERNAL_PCT_OF_SUM:
3303	{
3304	PSTAMSUMSAMPLE const pSum = pDesc->u.pSum;
3305	stamR3PctOfSumRefresh(pDesc, pSum);
3306	if (pDesc->enmVisibility == STAMVISIBILITY_USED && pSum->u.Counter.c == 0)
3307	return VINF_SUCCESS;
3308	pArgs->pfnPrintf(pArgs, "%-32s %8llu %s\n", pDesc->pszName, pSum->u.Counter.c, STAMR3GetUnit(pDesc->enmUnit));
3309	break;
3310	}
3311
3312	default:
3313	AssertMsgFailed(("enmType=%d\n", pDesc->enmType));
3314	break;
3315	}
3316	return VINF_SUCCESS;
3317	}
3318
3319
3320	/**
3321	* Enumerate the statistics by the means of a callback function.
3322	*
3323	* @returns Whatever the callback returns.
3324	*
3325	* @param pUVM The user mode VM handle.
3326	* @param pszPat The pattern to match samples.
3327	* @param pfnEnum The callback function.
3328	* @param pvUser The pvUser argument of the callback function.
3329	*/
3330	VMMR3DECL(int) STAMR3Enum(PUVM pUVM, const char pszPat, PFNSTAMR3ENUM pfnEnum, void pvUser)
3331	{
3332	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3333	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
3334
3335	STAMR3ENUMONEARGS Args;
3336	Args.pVM = pUVM->pVM;
3337	Args.pfnEnum = pfnEnum;
3338	Args.pvUser = pvUser;
3339
3340	return stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3EnumOne, &Args);
3341	}
3342
3343
3344	/**
3345	* Callback function for STARTR3Enum().
3346	*
3347	* @returns whatever the callback returns.
3348	* @param pDesc Pointer to the current descriptor.
3349	* @param pvArg Points to a STAMR3ENUMONEARGS structure.
3350	*/
3351	static int stamR3EnumOne(PSTAMDESC pDesc, void *pvArg)
3352	{
3353	PSTAMR3ENUMONEARGS const pArgs = (PSTAMR3ENUMONEARGS)pvArg;
3354	const char * const pszUnit = STAMR3GetUnit(pDesc->enmUnit);
3355	switch (pDesc->enmType)
3356	{
3357	default:
3358	return pArgs->pfnEnum(pDesc->pszName, pDesc->enmType, pDesc->u.pv, pDesc->enmUnit, pszUnit,
3359	pDesc->enmVisibility, pDesc->pszDesc, pArgs->pvUser);
3360
3361	case STAMTYPE_CALLBACK:
3362	{
3363	/* Give the enumerator something useful. */
3364	char szBuf[512];
3365	pDesc->u.Callback.pfnPrint(pArgs->pVM, pDesc->u.Callback.pvSample, szBuf, sizeof(szBuf));
3366	return pArgs->pfnEnum(pDesc->pszName, pDesc->enmType, szBuf, pDesc->enmUnit, pszUnit,
3367	pDesc->enmVisibility, pDesc->pszDesc, pArgs->pvUser);
3368	}
3369
3370	case STAMTYPE_INTERNAL_SUM:
3371	{
3372	PSTAMSUMSAMPLE const pSum = pDesc->u.pSum;
3373	stamR3SumRefresh(pSum);
3374	return pArgs->pfnEnum(pDesc->pszName, pSum->enmType, &pSum->u, pDesc->enmUnit, pszUnit,
3375	pDesc->enmVisibility, pDesc->pszDesc, pArgs->pvUser);
3376	}
3377
3378	case STAMTYPE_INTERNAL_PCT_OF_SUM:
3379	{
3380	PSTAMSUMSAMPLE const pSum = pDesc->u.pSum;
3381	stamR3PctOfSumRefresh(pDesc, pSum);
3382	return pArgs->pfnEnum(pDesc->pszName, pSum->enmType, &pSum->u, pDesc->enmUnit, pszUnit,
3383	pDesc->enmVisibility, pDesc->pszDesc, pArgs->pvUser);
3384	}
3385	}
3386	}
3387
3388	static void stamR3RefreshGroup(PUVM pUVM, uint8_t iRefreshGroup, uint64_t *pbmRefreshedGroups)
3389	{
3390	*pbmRefreshedGroups \|= RT_BIT_64(iRefreshGroup);
3391
3392	PVM pVM = pUVM->pVM;
3393	if (pVM && pVM->pSession)
3394	{
3395	switch (iRefreshGroup)
3396	{
3397	/*
3398	* GVMM
3399	*/
3400	case STAM_REFRESH_GRP_GVMM:
3401	{
3402	GVMMQUERYSTATISTICSSREQ Req;
3403	Req.Hdr.cbReq = sizeof(Req);
3404	Req.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
3405	Req.pSession = pVM->pSession;
3406	int rc = SUPR3CallVMMR0Ex(VMCC_GET_VMR0_FOR_CALL(pVM), NIL_VMCPUID, VMMR0_DO_GVMM_QUERY_STATISTICS, 0, &Req.Hdr);
3407	if (RT_SUCCESS(rc))
3408	{
3409	pUVM->stam.s.GVMMStats = Req.Stats;
3410
3411	/*
3412	* Check if the number of host CPUs has changed (it will the first
3413	* time around and normally never again).
3414	*/
3415	if (RT_UNLIKELY(pUVM->stam.s.GVMMStats.cHostCpus > pUVM->stam.s.cRegisteredHostCpus))
3416	{
3417	if (RT_UNLIKELY(pUVM->stam.s.GVMMStats.cHostCpus > pUVM->stam.s.cRegisteredHostCpus))
3418	{
3419	STAM_UNLOCK_RD(pUVM);
3420	STAM_LOCK_WR(pUVM);
3421	uint32_t cCpus = pUVM->stam.s.GVMMStats.cHostCpus;
3422	for (uint32_t iCpu = pUVM->stam.s.cRegisteredHostCpus; iCpu < cCpus; iCpu++)
3423	{
3424	char szName[120];
3425	size_t cchBase = RTStrPrintf(szName, sizeof(szName), "/GVMM/HostCpus/%u", iCpu);
3426	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aHostCpus[iCpu].idCpu, NULL, NULL,
3427	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_NONE,
3428	"Host CPU ID", STAM_REFRESH_GRP_GVMM);
3429	strcpy(&szName[cchBase], "/idxCpuSet");
3430	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aHostCpus[iCpu].idxCpuSet, NULL, NULL,
3431	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_NONE,
3432	"CPU Set index", STAM_REFRESH_GRP_GVMM);
3433	strcpy(&szName[cchBase], "/DesiredHz");
3434	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aHostCpus[iCpu].uDesiredHz, NULL, NULL,
3435	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_HZ,
3436	"The desired frequency", STAM_REFRESH_GRP_GVMM);
3437	strcpy(&szName[cchBase], "/CurTimerHz");
3438	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aHostCpus[iCpu].uTimerHz, NULL, NULL,
3439	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_HZ,
3440	"The current timer frequency", STAM_REFRESH_GRP_GVMM);
3441	strcpy(&szName[cchBase], "/PPTChanges");
3442	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aHostCpus[iCpu].cChanges, NULL, NULL,
3443	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_OCCURENCES,
3444	"RTTimerChangeInterval calls", STAM_REFRESH_GRP_GVMM);
3445	strcpy(&szName[cchBase], "/PPTStarts");
3446	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aHostCpus[iCpu].cStarts, NULL, NULL,
3447	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_OCCURENCES,
3448	"RTTimerStart calls", STAM_REFRESH_GRP_GVMM);
3449	}
3450	pUVM->stam.s.cRegisteredHostCpus = cCpus;
3451	STAM_UNLOCK_WR(pUVM);
3452	STAM_LOCK_RD(pUVM);
3453	}
3454	}
3455	}
3456	break;
3457	}
3458
3459	/*
3460	* GMM
3461	*/
3462	case STAM_REFRESH_GRP_GMM:
3463	{
3464	GMMQUERYSTATISTICSSREQ Req;
3465	Req.Hdr.cbReq = sizeof(Req);
3466	Req.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
3467	Req.pSession = pVM->pSession;
3468	int rc = SUPR3CallVMMR0Ex(VMCC_GET_VMR0_FOR_CALL(pVM), NIL_VMCPUID, VMMR0_DO_GMM_QUERY_STATISTICS, 0, &Req.Hdr);
3469	if (RT_SUCCESS(rc))
3470	pUVM->stam.s.GMMStats = Req.Stats;
3471	break;
3472	}
3473
3474	/*
3475	* NEM.
3476	*/
3477	case STAM_REFRESH_GRP_NEM:
3478	SUPR3CallVMMR0(VMCC_GET_VMR0_FOR_CALL(pVM), NIL_VMCPUID, VMMR0_DO_NEM_UPDATE_STATISTICS, NULL);
3479	break;
3480
3481	default:
3482	AssertMsgFailed(("iRefreshGroup=%d\n", iRefreshGroup));
3483	}
3484	}
3485	}
3486
3487
3488	/**
3489	* Refreshes the statistics behind the given entry, if necessary.
3490	*
3491	* This helps implement fetching global ring-0 stats into ring-3 accessible
3492	* storage. GVMM, GMM and NEM makes use of this.
3493	*
3494	* @param pUVM The user mode VM handle.
3495	* @param pCur The statistics descriptor which group to check
3496	* and maybe update.
3497	* @param pbmRefreshedGroups Bitmap tracking what has already been updated.
3498	*/
3499	DECLINLINE(void) stamR3Refresh(PUVM pUVM, PSTAMDESC pCur, uint64_t *pbmRefreshedGroups)
3500	{
3501	uint8_t const iRefreshGroup = pCur->iRefreshGroup;
3502	if (RT_LIKELY(iRefreshGroup == STAM_REFRESH_GRP_NONE))
3503	{ /* likely */ }
3504	else if (!(*pbmRefreshedGroups & RT_BIT_64(iRefreshGroup)))
3505	stamR3RefreshGroup(pUVM, iRefreshGroup, pbmRefreshedGroups);
3506	}
3507
3508
3509	/**
3510	* Match a name against an array of patterns.
3511	*
3512	* @returns true if it matches, false if it doesn't match.
3513	* @param papszExpressions The array of pattern expressions.
3514	* @param cExpressions The number of array entries.
3515	* @param piExpression Where to read/store the current skip index. Optional.
3516	* @param pszName The name to match.
3517	*/
3518	static bool stamR3MultiMatch(const char * const *papszExpressions, unsigned cExpressions,
3519	unsigned piExpression, const char pszName)
3520	{
3521	for (unsigned i = piExpression ? *piExpression : 0; i < cExpressions; i++)
3522	{
3523	const char *pszPat = papszExpressions[i];
3524	if (RTStrSimplePatternMatch(pszPat, pszName))
3525	{
3526	/* later:
3527	if (piExpression && i > *piExpression)
3528	{
3529	Check if we can skip some expressions.
3530	Requires the expressions to be sorted.
3531	}*/
3532	return true;
3533	}
3534	}
3535	return false;
3536	}
3537
3538
3539	/**
3540	* Splits a multi pattern into single ones.
3541	*
3542	* @returns Pointer to an array of single patterns. Free it with RTMemTmpFree.
3543	* @param pszPat The pattern to split.
3544	* @param pcExpressions The number of array elements.
3545	* @param ppszCopy The pattern copy to free using RTStrFree.
3546	*/
3547	static char *stamR3SplitPattern(const char pszPat, unsigned pcExpressions, char *ppszCopy)
3548	{
3549	Assert(pszPat && *pszPat);
3550
3551	char *pszCopy = RTStrDup(pszPat);
3552	if (!pszCopy)
3553	return NULL;
3554
3555	/* count them & allocate array. */
3556	char *psz = pszCopy;
3557	unsigned cExpressions = 1;
3558	while ((psz = strchr(psz, '\|')) != NULL)
3559	cExpressions++, psz++;
3560
3561	char papszExpressions = (char )RTMemTmpAllocZ((cExpressions + 1) * sizeof(char *));
3562	if (!papszExpressions)
3563	{
3564	RTStrFree(pszCopy);
3565	return NULL;
3566	}
3567
3568	/* split */
3569	psz = pszCopy;
3570	for (unsigned i = 0;;)
3571	{
3572	papszExpressions[i] = psz;
3573	if (++i >= cExpressions)
3574	break;
3575	psz = strchr(psz, '\|');
3576	*psz++ = '\0';
3577	}
3578
3579	/* sort the array, putting '' last. /
3580	/** @todo sort it... */
3581
3582	*pcExpressions = cExpressions;
3583	*ppszCopy = pszCopy;
3584	return papszExpressions;
3585	}
3586
3587
3588	/**
3589	* Enumerates the nodes selected by a pattern or all nodes if no pattern
3590	* is specified.
3591	*
3592	* The call may lock STAM for writing before calling this function, however do
3593	* not lock it for reading as this function may need to write lock STAM.
3594	*
3595	* @returns The rc from the callback.
3596	* @param pUVM Pointer to the user mode VM structure.
3597	* @param pszPat Pattern.
3598	* @param fUpdateRing0 Update the stats residing in ring-0.
3599	* @param pfnCallback Callback function which shall be called for matching nodes.
3600	* If it returns anything but VINF_SUCCESS the enumeration is
3601	* terminated and the status code returned to the caller.
3602	* @param pvArg User parameter for the callback.
3603	*/
3604	static int stamR3EnumU(PUVM pUVM, const char *pszPat, bool fUpdateRing0,
3605	int (pfnCallback)(PSTAMDESC pDesc, void pvArg), void *pvArg)
3606	{
3607	size_t const cchPat = pszPat ? strlen(pszPat) : 0;
3608	int rc = VINF_SUCCESS;
3609	uint64_t bmRefreshedGroups = 0;
3610	PSTAMDESC pCur;
3611
3612	/*
3613	* All.
3614	*/
3615	if ( cchPat < 1
3616	\|\| ( cchPat == 1
3617	&& pszPat == ''))
3618	{
3619	STAM_LOCK_RD(pUVM);
3620	RTListForEach(&pUVM->stam.s.List, pCur, STAMDESC, ListEntry)
3621	{
3622	if (fUpdateRing0)
3623	stamR3Refresh(pUVM, pCur, &bmRefreshedGroups);
3624	rc = pfnCallback(pCur, pvArg);
3625	if (rc)
3626	break;
3627	}
3628	STAM_UNLOCK_RD(pUVM);
3629	}
3630
3631	/*
3632	* Single expression pattern.
3633	*/
3634	else if (memchr(pszPat, '\|', cchPat) == NULL)
3635	{
3636	const char pszAsterisk = (const char )memchr(pszPat, '*', cchPat);
3637	const char pszQuestion = (const char )memchr(pszPat, '?', cchPat);
3638
3639	STAM_LOCK_RD(pUVM);
3640	if (!pszAsterisk && !pszQuestion)
3641	{
3642	pCur = stamR3LookupFindDesc(pUVM->stam.s.pRoot, pszPat);
3643	if (pCur)
3644	{
3645	if (fUpdateRing0)
3646	stamR3Refresh(pUVM, pCur, &bmRefreshedGroups);
3647	rc = pfnCallback(pCur, pvArg);
3648	}
3649	}
3650	/* Is this a prefix expression where we can use the lookup tree to
3651	efficiently figure out the exact range? */
3652	else if ( pszAsterisk == &pszPat[cchPat - 1]
3653	&& pszPat[0] == '/'
3654	&& !pszQuestion)
3655	{
3656	PSTAMDESC pLast;
3657	pCur = stamR3LookupFindByPrefixRange(pUVM->stam.s.pRoot, pszPat, (uint32_t)(cchPat - 1), &pLast);
3658	if (pCur)
3659	{
3660	for (;;)
3661	{
3662	Assert(strncmp(pCur->pszName, pszPat, cchPat - 1) == 0);
3663	if (fUpdateRing0)
3664	stamR3Refresh(pUVM, pCur, &bmRefreshedGroups);
3665	rc = pfnCallback(pCur, pvArg);
3666	if (rc)
3667	break;
3668	if (pCur == pLast)
3669	break;
3670	pCur = RTListNodeGetNext(&pCur->ListEntry, STAMDESC, ListEntry);
3671	}
3672	Assert(pLast);
3673	}
3674	else
3675	Assert(!pLast);
3676	}
3677	else
3678	{
3679	/* It's a more complicated pattern. Find the approximate range
3680	and scan it for matches. */
3681	PSTAMDESC pLast;
3682	pCur = stamR3LookupFindPatternDescRange(pUVM->stam.s.pRoot, &pUVM->stam.s.List, pszPat, &pLast);
3683	if (pCur)
3684	{
3685	for (;;)
3686	{
3687	if (RTStrSimplePatternMatch(pszPat, pCur->pszName))
3688	{
3689	if (fUpdateRing0)
3690	stamR3Refresh(pUVM, pCur, &bmRefreshedGroups);
3691	rc = pfnCallback(pCur, pvArg);
3692	if (rc)
3693	break;
3694	}
3695	if (pCur == pLast)
3696	break;
3697	pCur = RTListNodeGetNext(&pCur->ListEntry, STAMDESC, ListEntry);
3698	}
3699	Assert(pLast);
3700	}
3701	else
3702	Assert(!pLast);
3703	}
3704	STAM_UNLOCK_RD(pUVM);
3705	}
3706
3707	/*
3708	* Multi expression pattern.
3709	*/
3710	else
3711	{
3712	/*
3713	* Split up the pattern first.
3714	*/
3715	char *pszCopy;
3716	unsigned cExpressions;
3717	char **papszExpressions = stamR3SplitPattern(pszPat, &cExpressions, &pszCopy);
3718	if (!papszExpressions)
3719	return VERR_NO_MEMORY;
3720
3721	/*
3722	* Perform the enumeration.
3723	*/
3724	STAM_LOCK_RD(pUVM);
3725	unsigned iExpression = 0;
3726	RTListForEach(&pUVM->stam.s.List, pCur, STAMDESC, ListEntry)
3727	{
3728	if (stamR3MultiMatch(papszExpressions, cExpressions, &iExpression, pCur->pszName))
3729	{
3730	if (fUpdateRing0)
3731	stamR3Refresh(pUVM, pCur, &bmRefreshedGroups);
3732	rc = pfnCallback(pCur, pvArg);
3733	if (rc)
3734	break;
3735	}
3736	}
3737	STAM_UNLOCK_RD(pUVM);
3738
3739	RTMemTmpFree(papszExpressions);
3740	RTStrFree(pszCopy);
3741	}
3742
3743	return rc;
3744	}
3745
3746
3747	/**
3748	* Registers the ring-0 statistics.
3749	*
3750	* @param pUVM Pointer to the user mode VM structure.
3751	*/
3752	static void stamR3Ring0StatsRegisterU(PUVM pUVM)
3753	{
3754	/* GVMM */
3755	for (unsigned i = 0; i < RT_ELEMENTS(g_aGVMMStats); i++)
3756	stamR3RegisterU(pUVM, (uint8_t *)&pUVM->stam.s.GVMMStats + g_aGVMMStats[i].offVar, NULL, NULL,
3757	g_aGVMMStats[i].enmType, STAMVISIBILITY_ALWAYS, g_aGVMMStats[i].pszName,
3758	g_aGVMMStats[i].enmUnit, g_aGVMMStats[i].pszDesc, STAM_REFRESH_GRP_GVMM);
3759
3760	for (unsigned i = 0; i < pUVM->cCpus; i++)
3761	{
3762	char szName[120];
3763	size_t cchBase = RTStrPrintf(szName, sizeof(szName), pUVM->cCpus < 10 ? "/GVMM/VCpus/%u/" : "/GVMM/VCpus/%02u/", i);
3764
3765	strcpy(&szName[cchBase], "cWakeUpTimerHits");
3766	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aVCpus[i].cWakeUpTimerHits, NULL, NULL,
3767	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_OCCURENCES, "", STAM_REFRESH_GRP_GVMM);
3768
3769	strcpy(&szName[cchBase], "cWakeUpTimerMisses");
3770	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aVCpus[i].cWakeUpTimerMisses, NULL, NULL,
3771	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_OCCURENCES, "", STAM_REFRESH_GRP_GVMM);
3772
3773	strcpy(&szName[cchBase], "cWakeUpTimerCanceled");
3774	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aVCpus[i].cWakeUpTimerCanceled, NULL, NULL,
3775	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_OCCURENCES, "", STAM_REFRESH_GRP_GVMM);
3776
3777	strcpy(&szName[cchBase], "cWakeUpTimerSameCpu");
3778	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aVCpus[i].cWakeUpTimerSameCpu, NULL, NULL,
3779	STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_OCCURENCES, "", STAM_REFRESH_GRP_GVMM);
3780
3781	strcpy(&szName[cchBase], "Start");
3782	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aVCpus[i].Start, NULL, NULL,
3783	STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_TICKS_PER_CALL, "", STAM_REFRESH_GRP_GVMM);
3784
3785	strcpy(&szName[cchBase], "Stop");
3786	stamR3RegisterU(pUVM, &pUVM->stam.s.GVMMStats.aVCpus[i].Stop, NULL, NULL,
3787	STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_TICKS_PER_CALL, "", STAM_REFRESH_GRP_GVMM);
3788	}
3789	pUVM->stam.s.cRegisteredHostCpus = 0;
3790
3791	/* GMM */
3792	for (unsigned i = 0; i < RT_ELEMENTS(g_aGMMStats); i++)
3793	stamR3RegisterU(pUVM, (uint8_t *)&pUVM->stam.s.GMMStats + g_aGMMStats[i].offVar, NULL, NULL,
3794	g_aGMMStats[i].enmType, STAMVISIBILITY_ALWAYS, g_aGMMStats[i].pszName,
3795	g_aGMMStats[i].enmUnit, g_aGMMStats[i].pszDesc, STAM_REFRESH_GRP_GMM);
3796	}
3797
3798
3799	/**
3800	* Get the unit string.
3801	*
3802	* @returns Pointer to read only unit string.
3803	* @param enmUnit The unit.
3804	*/
3805	VMMR3DECL(const char *) STAMR3GetUnit(STAMUNIT enmUnit)
3806	{
3807	switch (enmUnit)
3808	{
3809	case STAMUNIT_NONE: return "";
3810	case STAMUNIT_CALLS: return "calls";
3811	case STAMUNIT_CALLS_PER_TB: return "calls/tb";
3812	case STAMUNIT_COUNT: return "count";
3813	case STAMUNIT_BYTES: return "bytes";
3814	case STAMUNIT_BYTES_PER_CALL: return "bytes/call";
3815	case STAMUNIT_PAGES: return "pages";
3816	case STAMUNIT_ERRORS: return "errors";
3817	case STAMUNIT_OCCURENCES: return "times";
3818	case STAMUNIT_TICKS: return "ticks";
3819	case STAMUNIT_TICKS_PER_CALL: return "ticks/call";
3820	case STAMUNIT_TICKS_PER_OCCURENCE: return "ticks/time";
3821	case STAMUNIT_GOOD_BAD: return "good:bad";
3822	case STAMUNIT_MEGABYTES: return "megabytes";
3823	case STAMUNIT_KILOBYTES: return "kilobytes";
3824	case STAMUNIT_NS: return "ns";
3825	case STAMUNIT_NS_PER_CALL: return "ns/call";
3826	case STAMUNIT_NS_PER_OCCURENCE: return "ns/time";
3827	case STAMUNIT_PCT: return "%";
3828	case STAMUNIT_PP1K: return "pp1k";
3829	case STAMUNIT_PP10K: return "pp10k";
3830	case STAMUNIT_PPM: return "ppm";
3831	case STAMUNIT_PPB: return "ppb";
3832	case STAMUNIT_HZ: return "Hz";
3833	case STAMUNIT_INSTR: return "instr";
3834	case STAMUNIT_INSTR_PER_TB: return "instr/tb";
3835	case STAMUNIT_BYTES_PER_TB: return "bytes/tb";
3836
3837	default:
3838	AssertMsgFailed(("Unknown unit %d\n", enmUnit));
3839	return "(?unit?)";
3840	}
3841	}
3842
3843
3844	/**
3845	* For something per something-else unit, get the first something.
3846	*
3847	* @returns Pointer to read only unit string.
3848	* @param enmUnit The unit.
3849	*/
3850	VMMR3DECL(const char *) STAMR3GetUnit1(STAMUNIT enmUnit)
3851	{
3852	switch (enmUnit)
3853	{
3854	case STAMUNIT_NONE: return "";
3855	case STAMUNIT_CALLS: return "calls";
3856	case STAMUNIT_CALLS_PER_TB: return "calls";
3857	case STAMUNIT_COUNT: return "count";
3858	case STAMUNIT_BYTES: return "bytes";
3859	case STAMUNIT_BYTES_PER_CALL: return "bytes";
3860	case STAMUNIT_PAGES: return "pages";
3861	case STAMUNIT_ERRORS: return "errors";
3862	case STAMUNIT_OCCURENCES: return "times";
3863	case STAMUNIT_TICKS: return "ticks";
3864	case STAMUNIT_TICKS_PER_CALL: return "ticks";
3865	case STAMUNIT_TICKS_PER_OCCURENCE: return "ticks";
3866	case STAMUNIT_GOOD_BAD: return "good";
3867	case STAMUNIT_MEGABYTES: return "megabytes";
3868	case STAMUNIT_KILOBYTES: return "kilobytes";
3869	case STAMUNIT_NS: return "ns";
3870	case STAMUNIT_NS_PER_CALL: return "ns";
3871	case STAMUNIT_NS_PER_OCCURENCE: return "ns";
3872	case STAMUNIT_PCT: return "%";
3873	case STAMUNIT_PP1K: return "pp1k";
3874	case STAMUNIT_PP10K: return "pp10k";
3875	case STAMUNIT_PPM: return "ppm";
3876	case STAMUNIT_PPB: return "ppb";
3877	case STAMUNIT_HZ: return "Hz";
3878	case STAMUNIT_INSTR: return "instr";
3879	case STAMUNIT_INSTR_PER_TB: return "instr";
3880	case STAMUNIT_BYTES_PER_TB: return "bytes";
3881
3882	default:
3883	AssertMsgFailed(("Unknown unit %d\n", enmUnit));
3884	return "(?unit?)";
3885	}
3886	}
3887
3888
3889	/**
3890	* For something per something-else unit, get the something-else.
3891	*
3892	* @returns Pointer to read only unit string.
3893	* @param enmUnit The unit.
3894	*/
3895	VMMR3DECL(const char *) STAMR3GetUnit2(STAMUNIT enmUnit)
3896	{
3897	switch (enmUnit)
3898	{
3899	case STAMUNIT_TICKS_PER_CALL: return "calls";
3900	case STAMUNIT_NS_PER_CALL: return "calls";
3901	case STAMUNIT_BYTES_PER_CALL: return "calls";
3902	case STAMUNIT_TICKS_PER_OCCURENCE: return "times";
3903	case STAMUNIT_NS_PER_OCCURENCE: return "times";
3904	case STAMUNIT_NONE: return "times";
3905	case STAMUNIT_GOOD_BAD: return "bad";
3906	case STAMUNIT_CALLS_PER_TB: return "tbs";
3907	case STAMUNIT_INSTR_PER_TB: return "tbs";
3908	case STAMUNIT_BYTES_PER_TB: return "tbs";
3909	default:
3910	AssertMsgFailed(("Wrong unit %d\n", enmUnit));
3911	return "times";
3912	}
3913	}
3914
3915	#ifdef VBOX_WITH_DEBUGGER
3916
3917	/**
3918	* @callback_method_impl{FNDBGCCMD, The '.stats' command.}
3919	*/
3920	static DECLCALLBACK(int) stamR3CmdStats(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3921	{
3922	/*
3923	* Validate input.
3924	*/
3925	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3926	if (RTListIsEmpty(&pUVM->stam.s.List))
3927	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No statistics present");
3928
3929	/*
3930	* Do the printing.
3931	*/
3932	STAMR3PRINTONEARGS Args;
3933	Args.pUVM = pUVM;
3934	Args.pvArg = pCmdHlp;
3935	Args.pfnPrintf = stamR3EnumDbgfPrintf;
3936
3937	return stamR3EnumU(pUVM, cArgs ? paArgs[0].u.pszString : NULL, true /* fUpdateRing0 */, stamR3PrintOne, &Args);
3938	}
3939
3940
3941	/**
3942	* Display one sample in the debugger.
3943	*
3944	* @param pArgs Pointer to the print one argument structure.
3945	* @param pszFormat Format string.
3946	* @param ... Format arguments.
3947	*/
3948	static DECLCALLBACK(void) stamR3EnumDbgfPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...)
3949	{
3950	PDBGCCMDHLP pCmdHlp = (PDBGCCMDHLP)pArgs->pvArg;
3951
3952	va_list va;
3953	va_start(va, pszFormat);
3954	pCmdHlp->pfnPrintfV(pCmdHlp, NULL, pszFormat, va);
3955	va_end(va);
3956	NOREF(pArgs);
3957	}
3958
3959
3960	/**
3961	* @callback_method_impl{FNDBGCCMD, The '.statsreset' command.}
3962	*/
3963	static DECLCALLBACK(int) stamR3CmdStatsReset(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3964	{
3965	/*
3966	* Validate input.
3967	*/
3968	DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3969	if (RTListIsEmpty(&pUVM->stam.s.List))
3970	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No statistics present");
3971
3972	/*
3973	* Execute reset.
3974	*/
3975	int rc = STAMR3Reset(pUVM, cArgs ? paArgs[0].u.pszString : NULL);
3976	if (RT_SUCCESS(rc))
3977	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "STAMR3ResetU");
3978	return DBGCCmdHlpPrintf(pCmdHlp, "Statistics have been reset.\n");
3979	}
3980
3981	#endif /* VBOX_WITH_DEBUGGER */
3982

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source: vbox/trunk/src/VBox/VMM/VMMR3/STAM.cpp@ 106061

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