VirtualBox

About
Screenshots
Downloads
Documentation
End-user docs
Technical docs
Contribute
Community

Browse Source

Context Navigation

source: vbox/trunk/src/VBox/VMM/VMMR3/TM.cpp@ 84044

Last change on this file since 84044 was 82968, checked in by vboxsync, 4 years ago
Copyright year updates by scm.
Property svn:eol-style set to `native` Property svn:keywords set to `Id Revision`
File size: 172.6 KB

Rev	Line
[23]	1	/* $Id: TM.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
[1]	2	/** @file
[13005]	3	* TM - Time Manager.
[1]	4	*/
	5
	6	/*
[82968]	7	* Copyright (C) 2006-2020 Oracle Corporation
[1]	8	*
	9	* This file is part of VirtualBox Open Source Edition (OSE), as
	10	* available from http://www.virtualbox.org. This file is free software;
	11	* you can redistribute it and/or modify it under the terms of the GNU
[5999]	12	* General Public License (GPL) as published by the Free Software
	13	* Foundation, in version 2 as it comes in the "COPYING" file of the
	14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
	15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
[1]	16	*/
	17
	18	/** @page pg_tm TM - The Time Manager
	19	*
[2105]	20	* The Time Manager abstracts the CPU clocks and manages timers used by the VMM,
	21	* device and drivers.
[1]	22	*
[13005]	23	* @see grp_tm
[2611]	24	*
[13005]	25	*
[2105]	26	* @section sec_tm_clocks Clocks
[2611]	27	*
[2105]	28	* There are currently 4 clocks:
	29	* - Virtual (guest).
	30	* - Synchronous virtual (guest).
[13633]	31	* - CPU Tick (TSC) (guest). Only current use is rdtsc emulation. Usually a
[2105]	32	* function of the virtual clock.
[13633]	33	* - Real (host). This is only used for display updates atm.
[2611]	34	*
[13633]	35	* The most important clocks are the three first ones and of these the second is
	36	* the most interesting.
[1]	37	*
[2611]	38	*
[13633]	39	* The synchronous virtual clock is tied to the virtual clock except that it
	40	* will take into account timer delivery lag caused by host scheduling. It will
	41	* normally never advance beyond the head timer, and when lagging too far behind
	42	* it will gradually speed up to catch up with the virtual clock. All devices
	43	* implementing time sources accessible to and used by the guest is using this
	44	* clock (for timers and other things). This ensures consistency between the
	45	* time sources.
	46	*
	47	* The virtual clock is implemented as an offset to a monotonic, high
	48	* resolution, wall clock. The current time source is using the RTTimeNanoTS()
	49	* machinery based upon the Global Info Pages (GIP), that is, we're using TSC
	50	* deltas (usually 10 ms) to fill the gaps between GIP updates. The result is
	51	* a fairly high res clock that works in all contexts and on all hosts. The
	52	* virtual clock is paused when the VM isn't in the running state.
	53	*
	54	* The CPU tick (TSC) is normally virtualized as a function of the synchronous
	55	* virtual clock, where the frequency defaults to the host cpu frequency (as we
	56	* measure it). In this mode it is possible to configure the frequency. Another
	57	* (non-default) option is to use the raw unmodified host TSC values. And yet
	58	* another, to tie it to time spent executing guest code. All these things are
	59	* configurable should non-default behavior be desirable.
	60	*
	61	* The real clock is a monotonic clock (when available) with relatively low
	62	* resolution, though this a bit host specific. Note that we're currently not
	63	* servicing timers using the real clock when the VM is not running, this is
	64	* simply because it has not been needed yet therefore not implemented.
	65	*
	66	*
[2105]	67	* @subsection subsec_tm_timesync Guest Time Sync / UTC time
[2611]	68	*
[13633]	69	* Guest time syncing is primarily taken care of by the VMM device. The
	70	* principle is very simple, the guest additions periodically asks the VMM
	71	* device what the current UTC time is and makes adjustments accordingly.
[1]	72	*
[13633]	73	* A complicating factor is that the synchronous virtual clock might be doing
	74	* catchups and the guest perception is currently a little bit behind the world
	75	* but it will (hopefully) be catching up soon as we're feeding timer interrupts
	76	* at a slightly higher rate. Adjusting the guest clock to the current wall
	77	* time in the real world would be a bad idea then because the guest will be
	78	* advancing too fast and run ahead of world time (if the catchup works out).
	79	* To solve this problem TM provides the VMM device with an UTC time source that
	80	* gets adjusted with the current lag, so that when the guest eventually catches
	81	* up the lag it will be showing correct real world time.
[2611]	82	*
[13633]	83	*
[1]	84	* @section sec_tm_timers Timers
	85	*
[13633]	86	* The timers can use any of the TM clocks described in the previous section.
	87	* Each clock has its own scheduling facility, or timer queue if you like.
	88	* There are a few factors which makes it a bit complex. First, there is the
[19032]	89	* usual R0 vs R3 vs. RC thing. Then there are multiple threads, and then there
[13633]	90	* is the timer thread that periodically checks whether any timers has expired
	91	* without EMT noticing. On the API level, all but the create and save APIs
[33540]	92	* must be multithreaded. EMT will always run the timers.
[1]	93	*
[2105]	94	* The design is using a doubly linked list of active timers which is ordered
[13633]	95	* by expire date. This list is only modified by the EMT thread. Updates to
[19032]	96	* the list are batched in a singly linked list, which is then processed by the
[13633]	97	* EMT thread at the first opportunity (immediately, next time EMT modifies a
	98	* timer on that clock, or next timer timeout). Both lists are offset based and
	99	* all the elements are therefore allocated from the hyper heap.
[1]	100	*
[2105]	101	* For figuring out when there is need to schedule and run timers TM will:
	102	* - Poll whenever somebody queries the virtual clock.
	103	* - Poll the virtual clocks from the EM and REM loops.
	104	* - Poll the virtual clocks from trap exit path.
	105	* - Poll the virtual clocks and calculate first timeout from the halt loop.
	106	* - Employ a thread which periodically (100Hz) polls all the timer queues.
[2611]	107	*
	108	*
[19491]	109	* @image html TMTIMER-Statechart-Diagram.gif
	110	*
[2283]	111	* @section sec_tm_timer Logging
[2611]	112	*
[2283]	113	* Level 2: Logs a most of the timer state transitions and queue servicing.
	114	* Level 3: Logs a few oddments.
	115	* Level 4: Logs TMCLOCK_VIRTUAL_SYNC catch-up events.
[2611]	116	*
[1]	117	*/
	118
[57358]	119
	120	/*********************************************************************************************************************************
	121	* Header Files *
	122	*********************************************************************************************************************************/
[1]	123	#define LOG_GROUP LOG_GROUP_TM
[72685]	124	#ifdef DEBUG_bird
	125	# define DBGFTRACE_DISABLED /* annoying */
	126	#endif
[35346]	127	#include <VBox/vmm/tm.h>
[57431]	128	#include <iprt/asm-amd64-x86.h> /* for SUPGetCpuHzFromGip from sup.h */
[35346]	129	#include <VBox/vmm/vmm.h>
	130	#include <VBox/vmm/mm.h>
[45808]	131	#include <VBox/vmm/hm.h>
[72526]	132	#include <VBox/vmm/nem.h>
[54065]	133	#include <VBox/vmm/gim.h>
[35346]	134	#include <VBox/vmm/ssm.h>
	135	#include <VBox/vmm/dbgf.h>
[37517]	136	#include <VBox/vmm/dbgftrace.h>
[35346]	137	#include <VBox/vmm/pdmapi.h>
	138	#include <VBox/vmm/iom.h>
[1]	139	#include "TMInternal.h"
[35346]	140	#include <VBox/vmm/vm.h>
[44346]	141	#include <VBox/vmm/uvm.h>
[1]	142
[35346]	143	#include <VBox/vmm/pdmdev.h>
[80157]	144	#include <VBox/log.h>
[1]	145	#include <VBox/param.h>
	146	#include <VBox/err.h>
	147
	148	#include <iprt/asm.h>
[29250]	149	#include <iprt/asm-math.h>
[1]	150	#include <iprt/assert.h>
[80157]	151	#include <iprt/env.h>
[70018]	152	#include <iprt/file.h>
[80157]	153	#include <iprt/getopt.h>
	154	#include <iprt/semaphore.h>
	155	#include <iprt/string.h>
[1]	156	#include <iprt/thread.h>
	157	#include <iprt/time.h>
	158	#include <iprt/timer.h>
	159
[37517]	160	#include "TMInline.h"
[1876]	161
[37517]	162
[57358]	163	/*********************************************************************************************************************************
	164	* Defined Constants And Macros *
	165	*********************************************************************************************************************************/
[1]	166	/** The current saved state version.*/
[2283]	167	#define TM_SAVED_STATE_VERSION 3
[1]	168
	169
[57358]	170	/*********************************************************************************************************************************
	171	* Internal Functions *
	172	*********************************************************************************************************************************/
[9354]	173	static bool tmR3HasFixedTSC(PVM pVM);
[62644]	174	static uint64_t tmR3CalibrateTSC(void);
[1]	175	static DECLCALLBACK(int) tmR3Save(PVM pVM, PSSMHANDLE pSSM);
[22793]	176	static DECLCALLBACK(int) tmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
[9445]	177	static DECLCALLBACK(void) tmR3TimerCallback(PRTTIMER pTimer, void *pvUser, uint64_t iTick);
[1]	178	static void tmR3TimerQueueRun(PVM pVM, PTMTIMERQUEUE pQueue);
[2248]	179	static void tmR3TimerQueueRunVirtualSync(PVM pVM);
[44346]	180	static DECLCALLBACK(int) tmR3SetWarpDrive(PUVM pUVM, uint32_t u32Percent);
[30586]	181	#ifndef VBOX_WITHOUT_NS_ACCOUNTING
	182	static DECLCALLBACK(void) tmR3CpuLoadTimer(PVM pVM, PTMTIMER pTimer, void *pvUser);
	183	#endif
[1]	184	static DECLCALLBACK(void) tmR3TimerInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
	185	static DECLCALLBACK(void) tmR3TimerInfoActive(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
[1057]	186	static DECLCALLBACK(void) tmR3InfoClocks(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
[80157]	187	static DECLCALLBACK(void) tmR3InfoCpuLoad(PVM pVM, PCDBGFINFOHLP pHlp, int cArgs, char **papszArgs);
[54308]	188	static DECLCALLBACK(VBOXSTRICTRC) tmR3CpuTickParavirtDisable(PVM pVM, PVMCPU pVCpu, void *pvData);
[62869]	189	static const char * tmR3GetTSCModeName(PVM pVM);
	190	static const char * tmR3GetTSCModeNameEx(TMTSCMODE enmMode);
[1]	191
	192
	193	/**
	194	* Initializes the TM.
	195	*
	196	* @returns VBox status code.
[58122]	197	* @param pVM The cross context VM structure.
[1]	198	*/
[22808]	199	VMM_INT_DECL(int) TMR3Init(PVM pVM)
[1]	200	{
	201	LogFlow(("TMR3Init:\n"));
	202
	203	/*
	204	* Assert alignment and sizes.
	205	*/
[19717]	206	AssertCompileMemberAlignment(VM, tm.s, 32);
	207	AssertCompile(sizeof(pVM->tm.s) <= sizeof(pVM->tm.padding));
[20784]	208	AssertCompileMemberAlignment(TM, TimerCritSect, 8);
[19717]	209	AssertCompileMemberAlignment(TM, VirtualSyncLock, 8);
[1]	210
	211	/*
	212	* Init the structure.
	213	*/
	214	void *pv;
	215	int rc = MMHyperAlloc(pVM, sizeof(pVM->tm.s.paTimerQueuesR3[0]) * TMCLOCK_MAX, 0, MM_TAG_TM, &pv);
	216	AssertRCReturn(rc, rc);
	217	pVM->tm.s.paTimerQueuesR3 = (PTMTIMERQUEUE)pv;
[13633]	218	pVM->tm.s.paTimerQueuesR0 = MMHyperR3ToR0(pVM, pv);
	219	pVM->tm.s.paTimerQueuesRC = MMHyperR3ToRC(pVM, pv);
[1]	220
[73097]	221	pVM->tm.s.offVM = RT_UOFFSETOF(VM, tm.s);
[22890]	222	pVM->tm.s.idTimerCpu = pVM->cCpus - 1; /* The last CPU. */
[1]	223	pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL].enmClock = TMCLOCK_VIRTUAL;
	224	pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL].u64Expire = INT64_MAX;
	225	pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL_SYNC].enmClock = TMCLOCK_VIRTUAL_SYNC;
	226	pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL_SYNC].u64Expire = INT64_MAX;
	227	pVM->tm.s.paTimerQueuesR3[TMCLOCK_REAL].enmClock = TMCLOCK_REAL;
	228	pVM->tm.s.paTimerQueuesR3[TMCLOCK_REAL].u64Expire = INT64_MAX;
	229	pVM->tm.s.paTimerQueuesR3[TMCLOCK_TSC].enmClock = TMCLOCK_TSC;
	230	pVM->tm.s.paTimerQueuesR3[TMCLOCK_TSC].u64Expire = INT64_MAX;
	231
[19660]	232
[1]	233	/*
[2869]	234	* We directly use the GIP to calculate the virtual time. We map the
	235	* the GIP into the guest context so we can do this calculation there
	236	* as well and save costly world switches.
[1]	237	*/
[54252]	238	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
	239	pVM->tm.s.pvGIPR3 = (void *)pGip;
[39402]	240	AssertMsgReturn(pVM->tm.s.pvGIPR3, ("GIP support is now required!\n"), VERR_TM_GIP_REQUIRED);
[54252]	241	AssertMsgReturn((pGip->u32Version >> 16) == (SUPGLOBALINFOPAGE_VERSION >> 16),
	242	("Unsupported GIP version %#x! (expected=%#x)\n", pGip->u32Version, SUPGLOBALINFOPAGE_VERSION),
	243	VERR_TM_GIP_VERSION);
[36254]	244
[1]	245	RTHCPHYS HCPhysGIP;
[20864]	246	rc = SUPR3GipGetPhys(&HCPhysGIP);
[1]	247	AssertMsgRCReturn(rc, ("Failed to get GIP physical address!\n"), rc);
	248
[80118]	249	#ifndef PGM_WITHOUT_MAPPINGS
[9148]	250	RTGCPTR GCPtr;
[80118]	251	# ifdef SUP_WITH_LOTS_OF_CPUS
[54252]	252	rc = MMR3HyperMapHCPhys(pVM, pVM->tm.s.pvGIPR3, NIL_RTR0PTR, HCPhysGIP, (size_t)pGip->cPages * PAGE_SIZE,
[36254]	253	"GIP", &GCPtr);
[80118]	254	# else
[14597]	255	rc = MMR3HyperMapHCPhys(pVM, pVM->tm.s.pvGIPR3, NIL_RTR0PTR, HCPhysGIP, PAGE_SIZE, "GIP", &GCPtr);
[80118]	256	# endif
[13816]	257	if (RT_FAILURE(rc))
[1]	258	{
[13818]	259	AssertMsgFailed(("Failed to map GIP into GC, rc=%Rrc!\n", rc));
[1]	260	return rc;
	261	}
[13633]	262	pVM->tm.s.pvGIPRC = GCPtr;
	263	LogFlow(("TMR3Init: HCPhysGIP=%RHp at %RRv\n", HCPhysGIP, pVM->tm.s.pvGIPRC));
[80118]	264	MMR3HyperReserveFence(pVM);
	265	#endif
[1]	266
[80118]	267
[2869]	268	/* Check assumptions made in TMAllVirtual.cpp about the GIP update interval. */
[54252]	269	if ( pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC
	270	&& pGip->u32UpdateIntervalNS >= 250000000 /* 0.25s */)
[39402]	271	return VMSetError(pVM, VERR_TM_GIP_UPDATE_INTERVAL_TOO_BIG, RT_SRC_POS,
[6298]	272	N_("The GIP update interval is too big. u32UpdateIntervalNS=%RU32 (u32UpdateHz=%RU32)"),
[54252]	273	pGip->u32UpdateIntervalNS, pGip->u32UpdateHz);
[54550]	274
	275	/* Log GIP info that may come in handy. */
[55157]	276	LogRel(("TM: GIP - u32Mode=%d (%s) u32UpdateHz=%u u32UpdateIntervalNS=%u enmUseTscDelta=%d (%s) fGetGipCpu=%#x cCpus=%d\n",
[54550]	277	pGip->u32Mode, SUPGetGIPModeName(pGip), pGip->u32UpdateHz, pGip->u32UpdateIntervalNS,
[55157]	278	pGip->enmUseTscDelta, SUPGetGIPTscDeltaModeName(pGip), pGip->fGetGipCpu, pGip->cCpus));
[54352]	279	LogRel(("TM: GIP - u64CpuHz=%'RU64 (%#RX64) SUPGetCpuHzFromGip => %'RU64\n",
	280	pGip->u64CpuHz, pGip->u64CpuHz, SUPGetCpuHzFromGip(pGip)));
[54550]	281	for (uint32_t iCpuSet = 0; iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx); iCpuSet++)
	282	{
	283	uint16_t iGipCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
	284	if (iGipCpu != UINT16_MAX)
	285	LogRel(("TM: GIP - CPU: iCpuSet=%#x idCpu=%#x idApic=%#x iGipCpu=%#x i64TSCDelta=%RI64 enmState=%d u64CpuHz=%RU64(*) cErrors=%u\n",
	286	iCpuSet, pGip->aCPUs[iGipCpu].idCpu, pGip->aCPUs[iGipCpu].idApic, iGipCpu, pGip->aCPUs[iGipCpu].i64TSCDelta,
	287	pGip->aCPUs[iGipCpu].enmState, pGip->aCPUs[iGipCpu].u64CpuHz, pGip->aCPUs[iGipCpu].cErrors));
	288	}
[2854]	289
[1]	290	/*
[5505]	291	* Setup the VirtualGetRaw backend.
	292	*/
[54270]	293	pVM->tm.s.pfnVirtualGetRawR3 = tmVirtualNanoTSRediscover;
	294	pVM->tm.s.VirtualGetRawDataR3.pfnRediscover = tmVirtualNanoTSRediscover;
[58116]	295	pVM->tm.s.VirtualGetRawDataR3.pfnBad = tmVirtualNanoTSBad;
[54270]	296	pVM->tm.s.VirtualGetRawDataR3.pfnBadCpuIndex = tmVirtualNanoTSBadCpuIndex;
	297	pVM->tm.s.VirtualGetRawDataR3.pu64Prev = &pVM->tm.s.u64VirtualRawPrev;
	298	pVM->tm.s.VirtualGetRawDataRC.pu64Prev = MMHyperR3ToRC(pVM, (void *)&pVM->tm.s.u64VirtualRawPrev);
	299	pVM->tm.s.VirtualGetRawDataR0.pu64Prev = MMHyperR3ToR0(pVM, (void *)&pVM->tm.s.u64VirtualRawPrev);
[39402]	300	AssertRelease(pVM->tm.s.VirtualGetRawDataR0.pu64Prev);
[55157]	301	/* The rest is done in TMR3InitFinalize() since it's too early to call PDM. */
[5509]	302
[19444]	303	/*
[19709]	304	* Init the locks.
[19444]	305	*/
[25732]	306	rc = PDMR3CritSectInit(pVM, &pVM->tm.s.TimerCritSect, RT_SRC_POS, "TM Timer Lock");
[19444]	307	if (RT_FAILURE(rc))
	308	return rc;
[25732]	309	rc = PDMR3CritSectInit(pVM, &pVM->tm.s.VirtualSyncLock, RT_SRC_POS, "TM VirtualSync Lock");
[19709]	310	if (RT_FAILURE(rc))
	311	return rc;
[5509]	312
[5505]	313	/*
[2248]	314	* Get our CFGM node, create it if necessary.
	315	*/
	316	PCFGMNODE pCfgHandle = CFGMR3GetChild(CFGMR3GetRoot(pVM), "TM");
	317	if (!pCfgHandle)
	318	{
	319	rc = CFGMR3InsertNode(CFGMR3GetRoot(pVM), "TM", &pCfgHandle);
	320	AssertRCReturn(rc, rc);
	321	}
	322
	323	/*
[53438]	324	* Specific errors about some obsolete TM settings (remove after 2015-12-03).
[53430]	325	*/
[53438]	326	if (CFGMR3Exists(pCfgHandle, "TSCVirtualized"))
	327	return VMSetError(pVM, VERR_CFGM_CONFIG_UNKNOWN_VALUE, RT_SRC_POS,
[62011]	328	N_("Configuration error: TM setting \"TSCVirtualized\" is no longer supported. Use the \"TSCMode\" setting instead."));
[53438]	329	if (CFGMR3Exists(pCfgHandle, "UseRealTSC"))
	330	return VMSetError(pVM, VERR_CFGM_CONFIG_UNKNOWN_VALUE, RT_SRC_POS,
[62011]	331	N_("Configuration error: TM setting \"UseRealTSC\" is no longer supported. Use the \"TSCMode\" setting instead."));
[53430]	332
[53438]	333	if (CFGMR3Exists(pCfgHandle, "MaybeUseOffsettedHostTSC"))
	334	return VMSetError(pVM, VERR_CFGM_CONFIG_UNKNOWN_VALUE, RT_SRC_POS,
[62011]	335	N_("Configuration error: TM setting \"MaybeUseOffsettedHostTSC\" is no longer supported. Use the \"TSCMode\" setting instead."));
[53430]	336
	337	/*
	338	* Validate the rest of the TM settings.
	339	*/
[53571]	340	rc = CFGMR3ValidateConfig(pCfgHandle, "/TM/",
[53721]	341	"TSCMode\|"
[54065]	342	"TSCModeSwitchAllowed\|"
[53438]	343	"TSCTicksPerSecond\|"
	344	"TSCTiedToExecution\|"
	345	"TSCNotTiedToHalt\|"
	346	"ScheduleSlack\|"
	347	"CatchUpStopThreshold\|"
	348	"CatchUpGiveUpThreshold\|"
	349	"CatchUpStartThreshold0\|CatchUpStartThreshold1\|CatchUpStartThreshold2\|CatchUpStartThreshold3\|"
	350	"CatchUpStartThreshold4\|CatchUpStartThreshold5\|CatchUpStartThreshold6\|CatchUpStartThreshold7\|"
	351	"CatchUpStartThreshold8\|CatchUpStartThreshold9\|"
	352	"CatchUpPrecentage0\|CatchUpPrecentage1\|CatchUpPrecentage2\|CatchUpPrecentage3\|"
	353	"CatchUpPrecentage4\|CatchUpPrecentage5\|CatchUpPrecentage6\|CatchUpPrecentage7\|"
	354	"CatchUpPrecentage8\|CatchUpPrecentage9\|"
	355	"UTCOffset\|"
[70018]	356	"UTCTouchFileOnJump\|"
[53438]	357	"WarpDrivePercentage\|"
	358	"HostHzMax\|"
	359	"HostHzFudgeFactorTimerCpu\|"
	360	"HostHzFudgeFactorOtherCpu\|"
	361	"HostHzFudgeFactorCatchUp100\|"
	362	"HostHzFudgeFactorCatchUp200\|"
	363	"HostHzFudgeFactorCatchUp400\|"
[70018]	364	"TimerMillies"
	365	,
[53438]	366	"",
	367	"TM", 0);
	368	if (RT_FAILURE(rc))
	369	return rc;
[53430]	370
	371	/*
[33540]	372	* Determine the TSC configuration and frequency.
[1]	373	*/
[53441]	374	/** @cfgm{/TM/TSCMode, string, Depends on the CPU and VM config}
	375	* The name of the TSC mode to use: VirtTSCEmulated, RealTSCOffset or Dynamic.
[53438]	376	* The default depends on the VM configuration and the capabilities of the
	377	* host CPU. Other config options or runtime changes may override the TSC
	378	* mode specified here.
[53441]	379	*/
	380	char szTSCMode[32];
	381	rc = CFGMR3QueryString(pCfgHandle, "TSCMode", szTSCMode, sizeof(szTSCMode));
[1057]	382	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
[53438]	383	{
	384	/** @todo Rainy-day/never: Dynamic mode isn't currently suitable for SMP VMs, so
	385	* fall back on the more expensive emulated mode. With the current TSC handling
	386	* (frequent switching between offsetted mode and taking VM exits, on all VCPUs
	387	* without any kind of coordination) will lead to inconsistent TSC behavior with
	388	* guest SMP, including TSC going backwards. */
[72526]	389	pVM->tm.s.enmTSCMode = NEMR3NeedSpecialTscMode(pVM) ? TMTSCMODE_NATIVE_API
	390	: pVM->cCpus == 1 && tmR3HasFixedTSC(pVM) ? TMTSCMODE_DYNAMIC : TMTSCMODE_VIRT_TSC_EMULATED;
[53438]	391	}
[13816]	392	else if (RT_FAILURE(rc))
[54065]	393	return VMSetError(pVM, rc, RT_SRC_POS, N_("Configuration error: Failed to querying string value \"TSCMode\""));
[53430]	394	else
[2581]	395	{
[53441]	396	if (!RTStrCmp(szTSCMode, "VirtTSCEmulated"))
	397	pVM->tm.s.enmTSCMode = TMTSCMODE_VIRT_TSC_EMULATED;
	398	else if (!RTStrCmp(szTSCMode, "RealTSCOffset"))
	399	pVM->tm.s.enmTSCMode = TMTSCMODE_REAL_TSC_OFFSET;
	400	else if (!RTStrCmp(szTSCMode, "Dynamic"))
	401	pVM->tm.s.enmTSCMode = TMTSCMODE_DYNAMIC;
[2581]	402	else
[54065]	403	return VMSetError(pVM, rc, RT_SRC_POS, N_("Configuration error: Unrecognized TM TSC mode value \"%s\""), szTSCMode);
[72526]	404	if (NEMR3NeedSpecialTscMode(pVM))
	405	{
	406	LogRel(("TM: NEM overrides the /TM/TSCMode=%s settings.\n", szTSCMode));
	407	pVM->tm.s.enmTSCMode = TMTSCMODE_NATIVE_API;
	408	}
[2581]	409	}
	410
[54065]	411	/**
	412	* @cfgm{/TM/TSCModeSwitchAllowed, bool, Whether TM TSC mode switch is allowed
	413	* at runtime}
	414	* When using paravirtualized guests, we dynamically switch TSC modes to a more
	415	* optimal one for performance. This setting allows overriding this behaviour.
	416	*/
	417	rc = CFGMR3QueryBool(pCfgHandle, "TSCModeSwitchAllowed", &pVM->tm.s.fTSCModeSwitchAllowed);
	418	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
	419	{
	420	/* This is finally determined in TMR3InitFinalize() as GIM isn't initialized yet. */
	421	pVM->tm.s.fTSCModeSwitchAllowed = true;
	422	}
	423	else if (RT_FAILURE(rc))
	424	return VMSetError(pVM, rc, RT_SRC_POS, N_("Configuration error: Failed to querying bool value \"TSCModeSwitchAllowed\""));
[72526]	425	if (pVM->tm.s.fTSCModeSwitchAllowed && pVM->tm.s.enmTSCMode == TMTSCMODE_NATIVE_API)
	426	{
	427	LogRel(("TM: NEM overrides the /TM/TSCModeSwitchAllowed setting.\n"));
	428	pVM->tm.s.fTSCModeSwitchAllowed = false;
	429	}
[54065]	430
[52764]	431	/** @cfgm{/TM/TSCTicksPerSecond, uint32_t, Current TSC frequency from GIP}
[12549]	432	* The number of TSC ticks per second (i.e. the TSC frequency). This will
[53441]	433	* override enmTSCMode.
[12549]	434	*/
[2248]	435	rc = CFGMR3QueryU64(pCfgHandle, "TSCTicksPerSecond", &pVM->tm.s.cTSCTicksPerSecond);
[1057]	436	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
	437	{
[62644]	438	pVM->tm.s.cTSCTicksPerSecond = tmR3CalibrateTSC();
[72526]	439	if ( ( pVM->tm.s.enmTSCMode == TMTSCMODE_DYNAMIC
	440	\|\| pVM->tm.s.enmTSCMode == TMTSCMODE_VIRT_TSC_EMULATED)
[53430]	441	&& pVM->tm.s.cTSCTicksPerSecond >= _4G)
[2581]	442	{
[1956]	443	pVM->tm.s.cTSCTicksPerSecond = _4G - 1; /* (A limitation of our math code) */
[53441]	444	pVM->tm.s.enmTSCMode = TMTSCMODE_VIRT_TSC_EMULATED;
[2581]	445	}
[1057]	446	}
[13816]	447	else if (RT_FAILURE(rc))
[2611]	448	return VMSetError(pVM, rc, RT_SRC_POS,
[6298]	449	N_("Configuration error: Failed to querying uint64_t value \"TSCTicksPerSecond\""));
[1057]	450	else if ( pVM->tm.s.cTSCTicksPerSecond < _1M
[1956]	451	\|\| pVM->tm.s.cTSCTicksPerSecond >= _4G)
[2611]	452	return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS,
[6300]	453	N_("Configuration error: \"TSCTicksPerSecond\" = %RI64 is not in the range 1MHz..4GHz-1"),
[1057]	454	pVM->tm.s.cTSCTicksPerSecond);
[72526]	455	else if (pVM->tm.s.enmTSCMode != TMTSCMODE_NATIVE_API)
	456	pVM->tm.s.enmTSCMode = TMTSCMODE_VIRT_TSC_EMULATED;
[1057]	457	else
[72526]	458	{
	459	LogRel(("TM: NEM overrides the /TM/TSCTicksPerSecond=%RU64 setting.\n", pVM->tm.s.cTSCTicksPerSecond));
	460	pVM->tm.s.cTSCTicksPerSecond = tmR3CalibrateTSC();
	461	}
[1057]	462
[52764]	463	/** @cfgm{/TM/TSCTiedToExecution, bool, false}
[12549]	464	* Whether the TSC should be tied to execution. This will exclude most of the
[19032]	465	* virtualization overhead, but will by default include the time spent in the
[12549]	466	* halt state (see TM/TSCNotTiedToHalt). This setting will override all other
	467	* TSC settings except for TSCTicksPerSecond and TSCNotTiedToHalt, which should
	468	* be used avoided or used with great care. Note that this will only work right
	469	* together with VT-x or AMD-V, and with a single virtual CPU. */
	470	rc = CFGMR3QueryBoolDef(pCfgHandle, "TSCTiedToExecution", &pVM->tm.s.fTSCTiedToExecution, false);
	471	if (RT_FAILURE(rc))
	472	return VMSetError(pVM, rc, RT_SRC_POS,
	473	N_("Configuration error: Failed to querying bool value \"TSCTiedToExecution\""));
[72526]	474	if (pVM->tm.s.fTSCTiedToExecution && pVM->tm.s.enmTSCMode == TMTSCMODE_NATIVE_API)
	475	return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS, N_("/TM/TSCTiedToExecution is not supported in NEM mode!"));
[12549]	476	if (pVM->tm.s.fTSCTiedToExecution)
[53441]	477	pVM->tm.s.enmTSCMode = TMTSCMODE_VIRT_TSC_EMULATED;
[12549]	478
[72526]	479
	480	/** @cfgm{/TM/TSCNotTiedToHalt, bool, false}
	481	* This is used with /TM/TSCTiedToExecution to control how TSC operates
	482	* accross HLT instructions. When true HLT is considered execution time and
	483	* TSC continues to run, while when false (default) TSC stops during halt. */
[12549]	484	rc = CFGMR3QueryBoolDef(pCfgHandle, "TSCNotTiedToHalt", &pVM->tm.s.fTSCNotTiedToHalt, false);
	485	if (RT_FAILURE(rc))
	486	return VMSetError(pVM, rc, RT_SRC_POS,
	487	N_("Configuration error: Failed to querying bool value \"TSCNotTiedToHalt\""));
	488
[1]	489	/*
[2248]	490	* Configure the timer synchronous virtual time.
[1]	491	*/
[52764]	492	/** @cfgm{/TM/ScheduleSlack, uint32_t, ns, 0, UINT32_MAX, 100000}
[13633]	493	* Scheduling slack when processing timers. */
[2248]	494	rc = CFGMR3QueryU32(pCfgHandle, "ScheduleSlack", &pVM->tm.s.u32VirtualSyncScheduleSlack);
	495	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
[2283]	496	pVM->tm.s.u32VirtualSyncScheduleSlack = 100000; /* 0.100ms (ASSUMES virtual time is nanoseconds) */
[13816]	497	else if (RT_FAILURE(rc))
[2611]	498	return VMSetError(pVM, rc, RT_SRC_POS,
[6298]	499	N_("Configuration error: Failed to querying 32-bit integer value \"ScheduleSlack\""));
[1]	500
[52764]	501	/** @cfgm{/TM/CatchUpStopThreshold, uint64_t, ns, 0, UINT64_MAX, 500000}
[13633]	502	* When to stop a catch-up, considering it successful. */
[2248]	503	rc = CFGMR3QueryU64(pCfgHandle, "CatchUpStopThreshold", &pVM->tm.s.u64VirtualSyncCatchUpStopThreshold);
	504	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
	505	pVM->tm.s.u64VirtualSyncCatchUpStopThreshold = 500000; /* 0.5ms */
[13816]	506	else if (RT_FAILURE(rc))
[2611]	507	return VMSetError(pVM, rc, RT_SRC_POS,
[6298]	508	N_("Configuration error: Failed to querying 64-bit integer value \"CatchUpStopThreshold\""));
[2248]	509
[52764]	510	/** @cfgm{/TM/CatchUpGiveUpThreshold, uint64_t, ns, 0, UINT64_MAX, 60000000000}
[13633]	511	* When to give up a catch-up attempt. */
[2248]	512	rc = CFGMR3QueryU64(pCfgHandle, "CatchUpGiveUpThreshold", &pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold);
	513	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
[2283]	514	pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold = UINT64_C(60000000000); /* 60 sec */
[13816]	515	else if (RT_FAILURE(rc))
[2611]	516	return VMSetError(pVM, rc, RT_SRC_POS,
[6298]	517	N_("Configuration error: Failed to querying 64-bit integer value \"CatchUpGiveUpThreshold\""));
[2248]	518
	519
[52764]	520	/** @cfgm{/TM/CatchUpPrecentage[0..9], uint32_t, %, 1, 2000, various}
[13633]	521	* The catch-up percent for a given period. */
[52764]	522	/** @cfgm{/TM/CatchUpStartThreshold[0..9], uint64_t, ns, 0, UINT64_MAX}
[13633]	523	* The catch-up period threshold, or if you like, when a period starts. */
[2248]	524	#define TM_CFG_PERIOD(iPeriod, DefStart, DefPct) \
	525	do \
	526	{ \
	527	uint64_t u64; \
	528	rc = CFGMR3QueryU64(pCfgHandle, "CatchUpStartThreshold" #iPeriod, &u64); \
	529	if (rc == VERR_CFGM_VALUE_NOT_FOUND) \
[2283]	530	u64 = UINT64_C(DefStart); \
[13816]	531	else if (RT_FAILURE(rc)) \
[6298]	532	return VMSetError(pVM, rc, RT_SRC_POS, N_("Configuration error: Failed to querying 64-bit integer value \"CatchUpThreshold" #iPeriod "\"")); \
[2248]	533	if ( (iPeriod > 0 && u64 <= pVM->tm.s.aVirtualSyncCatchUpPeriods[iPeriod - 1].u64Start) \
	534	\|\| u64 >= pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold) \
[20050]	535	return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS, N_("Configuration error: Invalid start of period #" #iPeriod ": %'RU64"), u64); \
[2248]	536	pVM->tm.s.aVirtualSyncCatchUpPeriods[iPeriod].u64Start = u64; \
	537	rc = CFGMR3QueryU32(pCfgHandle, "CatchUpPrecentage" #iPeriod, &pVM->tm.s.aVirtualSyncCatchUpPeriods[iPeriod].u32Percentage); \
	538	if (rc == VERR_CFGM_VALUE_NOT_FOUND) \
	539	pVM->tm.s.aVirtualSyncCatchUpPeriods[iPeriod].u32Percentage = (DefPct); \
[13816]	540	else if (RT_FAILURE(rc)) \
[6298]	541	return VMSetError(pVM, rc, RT_SRC_POS, N_("Configuration error: Failed to querying 32-bit integer value \"CatchUpPrecentage" #iPeriod "\"")); \
[2248]	542	} while (0)
[2283]	543	/* This needs more tuning. Not sure if we really need so many period and be so gentle. */
	544	TM_CFG_PERIOD(0, 750000, 5); /* 0.75ms at 1.05x */
	545	TM_CFG_PERIOD(1, 1500000, 10); /* 1.50ms at 1.10x */
	546	TM_CFG_PERIOD(2, 8000000, 25); /* 8ms at 1.25x */
	547	TM_CFG_PERIOD(3, 30000000, 50); /* 30ms at 1.50x */
[2975]	548	TM_CFG_PERIOD(4, 75000000, 75); /* 75ms at 1.75x */
[2283]	549	TM_CFG_PERIOD(5, 175000000, 100); /* 175ms at 2x */
	550	TM_CFG_PERIOD(6, 500000000, 200); /* 500ms at 3x */
	551	TM_CFG_PERIOD(7, 3000000000, 300); /* 3s at 4x */
	552	TM_CFG_PERIOD(8,30000000000, 400); /* 30s at 5x */
	553	TM_CFG_PERIOD(9,55000000000, 500); /* 55s at 6x */
	554	AssertCompile(RT_ELEMENTS(pVM->tm.s.aVirtualSyncCatchUpPeriods) == 10);
[2248]	555	#undef TM_CFG_PERIOD
	556
[1]	557	/*
[2623]	558	* Configure real world time (UTC).
[2611]	559	*/
[52764]	560	/** @cfgm{/TM/UTCOffset, int64_t, ns, INT64_MIN, INT64_MAX, 0}
[13633]	561	* The UTC offset. This is used to put the guest back or forwards in time. */
[2623]	562	rc = CFGMR3QueryS64(pCfgHandle, "UTCOffset", &pVM->tm.s.offUTC);
[2611]	563	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
[2623]	564	pVM->tm.s.offUTC = 0; /* ns */
[13816]	565	else if (RT_FAILURE(rc))
[2611]	566	return VMSetError(pVM, rc, RT_SRC_POS,
[6298]	567	N_("Configuration error: Failed to querying 64-bit integer value \"UTCOffset\""));
[2611]	568
[70018]	569	/** @cfgm{/TM/UTCTouchFileOnJump, string, none}
	570	* File to be written to everytime the host time jumps. */
	571	rc = CFGMR3QueryStringAlloc(pCfgHandle, "UTCTouchFileOnJump", &pVM->tm.s.pszUtcTouchFileOnJump);
	572	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
	573	pVM->tm.s.pszUtcTouchFileOnJump = NULL;
	574	else if (RT_FAILURE(rc))
	575	return VMSetError(pVM, rc, RT_SRC_POS,
	576	N_("Configuration error: Failed to querying string value \"UTCTouchFileOnJump\""));
	577
[2611]	578	/*
[443]	579	* Setup the warp drive.
[1]	580	*/
[52764]	581	/** @cfgm{/TM/WarpDrivePercentage, uint32_t, %, 0, 20000, 100}
[13633]	582	* The warp drive percentage, 100% is normal speed. This is used to speed up
	583	* or slow down the virtual clock, which can be useful for fast forwarding
	584	* borring periods during tests. */
[2248]	585	rc = CFGMR3QueryU32(pCfgHandle, "WarpDrivePercentage", &pVM->tm.s.u32VirtualWarpDrivePercentage);
[443]	586	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
[2248]	587	rc = CFGMR3QueryU32(CFGMR3GetRoot(pVM), "WarpDrivePercentage", &pVM->tm.s.u32VirtualWarpDrivePercentage); /* legacy */
	588	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
[443]	589	pVM->tm.s.u32VirtualWarpDrivePercentage = 100;
[13816]	590	else if (RT_FAILURE(rc))
[2611]	591	return VMSetError(pVM, rc, RT_SRC_POS,
[6298]	592	N_("Configuration error: Failed to querying uint32_t value \"WarpDrivePercent\""));
[2611]	593	else if ( pVM->tm.s.u32VirtualWarpDrivePercentage < 2
[443]	594	\|\| pVM->tm.s.u32VirtualWarpDrivePercentage > 20000)
[2611]	595	return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS,
[6300]	596	N_("Configuration error: \"WarpDrivePercent\" = %RI32 is not in the range 2..20000"),
[443]	597	pVM->tm.s.u32VirtualWarpDrivePercentage);
	598	pVM->tm.s.fVirtualWarpDrive = pVM->tm.s.u32VirtualWarpDrivePercentage != 100;
	599	if (pVM->tm.s.fVirtualWarpDrive)
[53430]	600	{
[72526]	601	if (pVM->tm.s.enmTSCMode == TMTSCMODE_NATIVE_API)
	602	LogRel(("TM: Warp-drive active, escept for TSC which is in NEM mode. u32VirtualWarpDrivePercentage=%RI32\n",
	603	pVM->tm.s.u32VirtualWarpDrivePercentage));
	604	else
	605	{
	606	pVM->tm.s.enmTSCMode = TMTSCMODE_VIRT_TSC_EMULATED;
	607	LogRel(("TM: Warp-drive active. u32VirtualWarpDrivePercentage=%RI32\n", pVM->tm.s.u32VirtualWarpDrivePercentage));
	608	}
[53430]	609	}
[443]	610
	611	/*
[32796]	612	* Gather the Host Hz configuration values.
	613	*/
	614	rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzMax", &pVM->tm.s.cHostHzMax, 20000);
	615	if (RT_FAILURE(rc))
	616	return VMSetError(pVM, rc, RT_SRC_POS,
	617	N_("Configuration error: Failed to querying uint32_t value \"HostHzMax\""));
	618
	619	rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorTimerCpu", &pVM->tm.s.cPctHostHzFudgeFactorTimerCpu, 111);
	620	if (RT_FAILURE(rc))
	621	return VMSetError(pVM, rc, RT_SRC_POS,
	622	N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorTimerCpu\""));
	623
	624	rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorOtherCpu", &pVM->tm.s.cPctHostHzFudgeFactorOtherCpu, 110);
	625	if (RT_FAILURE(rc))
	626	return VMSetError(pVM, rc, RT_SRC_POS,
	627	N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorOtherCpu\""));
	628
	629	rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorCatchUp100", &pVM->tm.s.cPctHostHzFudgeFactorCatchUp100, 300);
	630	if (RT_FAILURE(rc))
	631	return VMSetError(pVM, rc, RT_SRC_POS,
	632	N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorCatchUp100\""));
	633
	634	rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorCatchUp200", &pVM->tm.s.cPctHostHzFudgeFactorCatchUp200, 250);
	635	if (RT_FAILURE(rc))
	636	return VMSetError(pVM, rc, RT_SRC_POS,
	637	N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorCatchUp200\""));
	638
	639	rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorCatchUp400", &pVM->tm.s.cPctHostHzFudgeFactorCatchUp400, 200);
	640	if (RT_FAILURE(rc))
	641	return VMSetError(pVM, rc, RT_SRC_POS,
	642	N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorCatchUp400\""));
	643
	644	/*
[54065]	645	* Finally, setup and report.
	646	*/
	647	pVM->tm.s.enmOriginalTSCMode = pVM->tm.s.enmTSCMode;
	648	CPUMR3SetCR4Feature(pVM, X86_CR4_TSD, ~X86_CR4_TSD);
[55019]	649	LogRel(("TM: cTSCTicksPerSecond=%'RU64 (%#RX64) enmTSCMode=%d (%s)\n"
[54065]	650	"TM: TSCTiedToExecution=%RTbool TSCNotTiedToHalt=%RTbool\n",
	651	pVM->tm.s.cTSCTicksPerSecond, pVM->tm.s.cTSCTicksPerSecond, pVM->tm.s.enmTSCMode, tmR3GetTSCModeName(pVM),
	652	pVM->tm.s.fTSCTiedToExecution, pVM->tm.s.fTSCNotTiedToHalt));
	653
	654	/*
[443]	655	* Start the timer (guard against REM not yielding).
	656	*/
[52764]	657	/** @cfgm{/TM/TimerMillies, uint32_t, ms, 1, 1000, 10}
[13633]	658	* The watchdog timer interval. */
[1]	659	uint32_t u32Millies;
[2248]	660	rc = CFGMR3QueryU32(pCfgHandle, "TimerMillies", &u32Millies);
[1]	661	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
[77284]	662	u32Millies = VM_IS_HM_ENABLED(pVM) ? 1000 : 10;
[13816]	663	else if (RT_FAILURE(rc))
[2611]	664	return VMSetError(pVM, rc, RT_SRC_POS,
[6298]	665	N_("Configuration error: Failed to query uint32_t value \"TimerMillies\""));
[1]	666	rc = RTTimerCreate(&pVM->tm.s.pTimer, u32Millies, tmR3TimerCallback, pVM);
[13816]	667	if (RT_FAILURE(rc))
[1]	668	{
[13818]	669	AssertMsgFailed(("Failed to create timer, u32Millies=%d rc=%Rrc.\n", u32Millies, rc));
[1]	670	return rc;
	671	}
[33595]	672	Log(("TM: Created timer %p firing every %d milliseconds\n", pVM->tm.s.pTimer, u32Millies));
[1]	673	pVM->tm.s.u32TimerMillies = u32Millies;
	674
[2248]	675	/*
	676	* Register saved state.
	677	*/
	678	rc = SSMR3RegisterInternal(pVM, "tm", 1, TM_SAVED_STATE_VERSION, sizeof(uint64_t) * 8,
[22480]	679	NULL, NULL, NULL,
[2248]	680	NULL, tmR3Save, NULL,
	681	NULL, tmR3Load, NULL);
[13816]	682	if (RT_FAILURE(rc))
[2248]	683	return rc;
	684
[1]	685	/*
	686	* Register statistics.
	687	*/
[13633]	688	STAM_REL_REG_USED(pVM,(void*)&pVM->tm.s.VirtualGetRawDataR3.c1nsSteps,STAMTYPE_U32, "/TM/R3/1nsSteps", STAMUNIT_OCCURENCES, "Virtual time 1ns steps (due to TSC / GIP variations).");
	689	STAM_REL_REG_USED(pVM,(void*)&pVM->tm.s.VirtualGetRawDataR3.cBadPrev, STAMTYPE_U32, "/TM/R3/cBadPrev", STAMUNIT_OCCURENCES, "Times the previous virtual time was considered erratic (shouldn't ever happen).");
	690	STAM_REL_REG_USED(pVM,(void*)&pVM->tm.s.VirtualGetRawDataR0.c1nsSteps,STAMTYPE_U32, "/TM/R0/1nsSteps", STAMUNIT_OCCURENCES, "Virtual time 1ns steps (due to TSC / GIP variations).");
	691	STAM_REL_REG_USED(pVM,(void*)&pVM->tm.s.VirtualGetRawDataR0.cBadPrev, STAMTYPE_U32, "/TM/R0/cBadPrev", STAMUNIT_OCCURENCES, "Times the previous virtual time was considered erratic (shouldn't ever happen).");
[20050]	692	STAM_REL_REG_USED(pVM,(void*)&pVM->tm.s.VirtualGetRawDataRC.c1nsSteps,STAMTYPE_U32, "/TM/RC/1nsSteps", STAMUNIT_OCCURENCES, "Virtual time 1ns steps (due to TSC / GIP variations).");
	693	STAM_REL_REG_USED(pVM,(void*)&pVM->tm.s.VirtualGetRawDataRC.cBadPrev, STAMTYPE_U32, "/TM/RC/cBadPrev", STAMUNIT_OCCURENCES, "Times the previous virtual time was considered erratic (shouldn't ever happen).");
[13633]	694	STAM_REL_REG( pVM,(void*)&pVM->tm.s.offVirtualSync, STAMTYPE_U64, "/TM/VirtualSync/CurrentOffset", STAMUNIT_NS, "The current offset. (subtract GivenUp to get the lag)");
[33595]	695	STAM_REL_REG_USED(pVM,(void*)&pVM->tm.s.offVirtualSyncGivenUp, STAMTYPE_U64, "/TM/VirtualSync/GivenUp", STAMUNIT_NS, "Nanoseconds of the 'CurrentOffset' that's been given up and won't ever be attempted caught up with.");
[32796]	696	STAM_REL_REG( pVM,(void*)&pVM->tm.s.uMaxHzHint, STAMTYPE_U32, "/TM/MaxHzHint", STAMUNIT_HZ, "Max guest timer frequency hint.");
[2869]	697
	698	#ifdef VBOX_WITH_STATISTICS
[13633]	699	STAM_REG_USED(pVM,(void *)&pVM->tm.s.VirtualGetRawDataR3.cExpired, STAMTYPE_U32, "/TM/R3/cExpired", STAMUNIT_OCCURENCES, "Times the TSC interval expired (overlaps 1ns steps).");
	700	STAM_REG_USED(pVM,(void *)&pVM->tm.s.VirtualGetRawDataR3.cUpdateRaces,STAMTYPE_U32, "/TM/R3/cUpdateRaces", STAMUNIT_OCCURENCES, "Thread races when updating the previous timestamp.");
	701	STAM_REG_USED(pVM,(void *)&pVM->tm.s.VirtualGetRawDataR0.cExpired, STAMTYPE_U32, "/TM/R0/cExpired", STAMUNIT_OCCURENCES, "Times the TSC interval expired (overlaps 1ns steps).");
	702	STAM_REG_USED(pVM,(void *)&pVM->tm.s.VirtualGetRawDataR0.cUpdateRaces,STAMTYPE_U32, "/TM/R0/cUpdateRaces", STAMUNIT_OCCURENCES, "Thread races when updating the previous timestamp.");
[20050]	703	STAM_REG_USED(pVM,(void *)&pVM->tm.s.VirtualGetRawDataRC.cExpired, STAMTYPE_U32, "/TM/RC/cExpired", STAMUNIT_OCCURENCES, "Times the TSC interval expired (overlaps 1ns steps).");
	704	STAM_REG_USED(pVM,(void *)&pVM->tm.s.VirtualGetRawDataRC.cUpdateRaces,STAMTYPE_U32, "/TM/RC/cUpdateRaces", STAMUNIT_OCCURENCES, "Thread races when updating the previous timestamp.");
[13633]	705	STAM_REG(pVM, &pVM->tm.s.StatDoQueues, STAMTYPE_PROFILE, "/TM/DoQueues", STAMUNIT_TICKS_PER_CALL, "Profiling timer TMR3TimerQueuesDo.");
[19709]	706	STAM_REG(pVM, &pVM->tm.s.aStatDoQueues[TMCLOCK_VIRTUAL], STAMTYPE_PROFILE_ADV, "/TM/DoQueues/Virtual", STAMUNIT_TICKS_PER_CALL, "Time spent on the virtual clock queue.");
	707	STAM_REG(pVM, &pVM->tm.s.aStatDoQueues[TMCLOCK_VIRTUAL_SYNC], STAMTYPE_PROFILE_ADV, "/TM/DoQueues/VirtualSync", STAMUNIT_TICKS_PER_CALL, "Time spent on the virtual sync clock queue.");
	708	STAM_REG(pVM, &pVM->tm.s.aStatDoQueues[TMCLOCK_REAL], STAMTYPE_PROFILE_ADV, "/TM/DoQueues/Real", STAMUNIT_TICKS_PER_CALL, "Time spent on the real clock queue.");
[5505]	709
[19660]	710	STAM_REG(pVM, &pVM->tm.s.StatPoll, STAMTYPE_COUNTER, "/TM/Poll", STAMUNIT_OCCURENCES, "TMTimerPoll calls.");
	711	STAM_REG(pVM, &pVM->tm.s.StatPollAlreadySet, STAMTYPE_COUNTER, "/TM/Poll/AlreadySet", STAMUNIT_OCCURENCES, "TMTimerPoll calls where the FF was already set.");
[19810]	712	STAM_REG(pVM, &pVM->tm.s.StatPollELoop, STAMTYPE_COUNTER, "/TM/Poll/ELoop", STAMUNIT_OCCURENCES, "Times TMTimerPoll has given up getting a consistent virtual sync data set.");
	713	STAM_REG(pVM, &pVM->tm.s.StatPollMiss, STAMTYPE_COUNTER, "/TM/Poll/Miss", STAMUNIT_OCCURENCES, "TMTimerPoll calls where nothing had expired.");
	714	STAM_REG(pVM, &pVM->tm.s.StatPollRunning, STAMTYPE_COUNTER, "/TM/Poll/Running", STAMUNIT_OCCURENCES, "TMTimerPoll calls where the queues were being run.");
	715	STAM_REG(pVM, &pVM->tm.s.StatPollSimple, STAMTYPE_COUNTER, "/TM/Poll/Simple", STAMUNIT_OCCURENCES, "TMTimerPoll calls where we could take the simple path.");
[19660]	716	STAM_REG(pVM, &pVM->tm.s.StatPollVirtual, STAMTYPE_COUNTER, "/TM/Poll/HitsVirtual", STAMUNIT_OCCURENCES, "The number of times TMTimerPoll found an expired TMCLOCK_VIRTUAL queue.");
	717	STAM_REG(pVM, &pVM->tm.s.StatPollVirtualSync, STAMTYPE_COUNTER, "/TM/Poll/HitsVirtualSync", STAMUNIT_OCCURENCES, "The number of times TMTimerPoll found an expired TMCLOCK_VIRTUAL_SYNC queue.");
[1]	718
[13633]	719	STAM_REG(pVM, &pVM->tm.s.StatPostponedR3, STAMTYPE_COUNTER, "/TM/PostponedR3", STAMUNIT_OCCURENCES, "Postponed due to unschedulable state, in ring-3.");
	720	STAM_REG(pVM, &pVM->tm.s.StatPostponedRZ, STAMTYPE_COUNTER, "/TM/PostponedRZ", STAMUNIT_OCCURENCES, "Postponed due to unschedulable state, in ring-0 / RC.");
[1]	721
[13633]	722	STAM_REG(pVM, &pVM->tm.s.StatScheduleOneR3, STAMTYPE_PROFILE, "/TM/ScheduleOneR3", STAMUNIT_TICKS_PER_CALL, "Profiling the scheduling of one queue during a TMTimer* call in EMT.");
	723	STAM_REG(pVM, &pVM->tm.s.StatScheduleOneRZ, STAMTYPE_PROFILE, "/TM/ScheduleOneRZ", STAMUNIT_TICKS_PER_CALL, "Profiling the scheduling of one queue during a TMTimer* call in EMT.");
	724	STAM_REG(pVM, &pVM->tm.s.StatScheduleSetFF, STAMTYPE_COUNTER, "/TM/ScheduleSetFF", STAMUNIT_OCCURENCES, "The number of times the timer FF was set instead of doing scheduling.");
[1]	725
[37517]	726	STAM_REG(pVM, &pVM->tm.s.StatTimerSet, STAMTYPE_COUNTER, "/TM/TimerSet", STAMUNIT_OCCURENCES, "Calls, except virtual sync timers");
[20752]	727	STAM_REG(pVM, &pVM->tm.s.StatTimerSetOpt, STAMTYPE_COUNTER, "/TM/TimerSet/Opt", STAMUNIT_OCCURENCES, "Optimized path taken.");
	728	STAM_REG(pVM, &pVM->tm.s.StatTimerSetR3, STAMTYPE_PROFILE, "/TM/TimerSet/R3", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerSet calls made in ring-3.");
	729	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRZ, STAMTYPE_PROFILE, "/TM/TimerSet/RZ", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerSet calls made in ring-0 / RC.");
	730	STAM_REG(pVM, &pVM->tm.s.StatTimerSetStActive, STAMTYPE_COUNTER, "/TM/TimerSet/StActive", STAMUNIT_OCCURENCES, "ACTIVE");
	731	STAM_REG(pVM, &pVM->tm.s.StatTimerSetStExpDeliver, STAMTYPE_COUNTER, "/TM/TimerSet/StExpDeliver", STAMUNIT_OCCURENCES, "EXPIRED_DELIVER");
	732	STAM_REG(pVM, &pVM->tm.s.StatTimerSetStOther, STAMTYPE_COUNTER, "/TM/TimerSet/StOther", STAMUNIT_OCCURENCES, "Other states");
	733	STAM_REG(pVM, &pVM->tm.s.StatTimerSetStPendStop, STAMTYPE_COUNTER, "/TM/TimerSet/StPendStop", STAMUNIT_OCCURENCES, "PENDING_STOP");
	734	STAM_REG(pVM, &pVM->tm.s.StatTimerSetStPendStopSched, STAMTYPE_COUNTER, "/TM/TimerSet/StPendStopSched", STAMUNIT_OCCURENCES, "PENDING_STOP_SCHEDULE");
	735	STAM_REG(pVM, &pVM->tm.s.StatTimerSetStPendSched, STAMTYPE_COUNTER, "/TM/TimerSet/StPendSched", STAMUNIT_OCCURENCES, "PENDING_SCHEDULE");
	736	STAM_REG(pVM, &pVM->tm.s.StatTimerSetStPendResched, STAMTYPE_COUNTER, "/TM/TimerSet/StPendResched", STAMUNIT_OCCURENCES, "PENDING_RESCHEDULE");
	737	STAM_REG(pVM, &pVM->tm.s.StatTimerSetStStopped, STAMTYPE_COUNTER, "/TM/TimerSet/StStopped", STAMUNIT_OCCURENCES, "STOPPED");
[1]	738
[37517]	739	STAM_REG(pVM, &pVM->tm.s.StatTimerSetVs, STAMTYPE_COUNTER, "/TM/TimerSetVs", STAMUNIT_OCCURENCES, "TMTimerSet calls on virtual sync timers");
	740	STAM_REG(pVM, &pVM->tm.s.StatTimerSetVsR3, STAMTYPE_PROFILE, "/TM/TimerSetVs/R3", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerSet calls made in ring-3 on virtual sync timers.");
	741	STAM_REG(pVM, &pVM->tm.s.StatTimerSetVsRZ, STAMTYPE_PROFILE, "/TM/TimerSetVs/RZ", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerSet calls made in ring-0 / RC on virtual sync timers.");
	742	STAM_REG(pVM, &pVM->tm.s.StatTimerSetVsStActive, STAMTYPE_COUNTER, "/TM/TimerSetVs/StActive", STAMUNIT_OCCURENCES, "ACTIVE");
	743	STAM_REG(pVM, &pVM->tm.s.StatTimerSetVsStExpDeliver, STAMTYPE_COUNTER, "/TM/TimerSetVs/StExpDeliver", STAMUNIT_OCCURENCES, "EXPIRED_DELIVER");
	744	STAM_REG(pVM, &pVM->tm.s.StatTimerSetVsStStopped, STAMTYPE_COUNTER, "/TM/TimerSetVs/StStopped", STAMUNIT_OCCURENCES, "STOPPED");
	745
	746	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelative, STAMTYPE_COUNTER, "/TM/TimerSetRelative", STAMUNIT_OCCURENCES, "Calls, except virtual sync timers");
[20752]	747	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeOpt, STAMTYPE_COUNTER, "/TM/TimerSetRelative/Opt", STAMUNIT_OCCURENCES, "Optimized path taken.");
[37517]	748	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeR3, STAMTYPE_PROFILE, "/TM/TimerSetRelative/R3", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerSetRelative calls made in ring-3 (sans virtual sync).");
	749	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeRZ, STAMTYPE_PROFILE, "/TM/TimerSetRelative/RZ", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerSetReltaive calls made in ring-0 / RC (sans virtual sync).");
[20750]	750	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStActive, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StActive", STAMUNIT_OCCURENCES, "ACTIVE");
	751	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStExpDeliver, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StExpDeliver", STAMUNIT_OCCURENCES, "EXPIRED_DELIVER");
	752	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStOther, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StOther", STAMUNIT_OCCURENCES, "Other states");
	753	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStPendStop, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StPendStop", STAMUNIT_OCCURENCES, "PENDING_STOP");
	754	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStPendStopSched, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StPendStopSched",STAMUNIT_OCCURENCES, "PENDING_STOP_SCHEDULE");
	755	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStPendSched, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StPendSched", STAMUNIT_OCCURENCES, "PENDING_SCHEDULE");
	756	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStPendResched, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StPendResched", STAMUNIT_OCCURENCES, "PENDING_RESCHEDULE");
	757	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStStopped, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StStopped", STAMUNIT_OCCURENCES, "STOPPED");
[20733]	758
[37517]	759	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVs, STAMTYPE_COUNTER, "/TM/TimerSetRelativeVs", STAMUNIT_OCCURENCES, "TMTimerSetRelative calls on virtual sync timers");
	760	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVsR3, STAMTYPE_PROFILE, "/TM/TimerSetRelativeVs/R3", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerSetRelative calls made in ring-3 on virtual sync timers.");
	761	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVsRZ, STAMTYPE_PROFILE, "/TM/TimerSetRelativeVs/RZ", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerSetReltaive calls made in ring-0 / RC on virtual sync timers.");
	762	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVsStActive, STAMTYPE_COUNTER, "/TM/TimerSetRelativeVs/StActive", STAMUNIT_OCCURENCES, "ACTIVE");
	763	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVsStExpDeliver, STAMTYPE_COUNTER, "/TM/TimerSetRelativeVs/StExpDeliver", STAMUNIT_OCCURENCES, "EXPIRED_DELIVER");
	764	STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVsStStopped, STAMTYPE_COUNTER, "/TM/TimerSetRelativeVs/StStopped", STAMUNIT_OCCURENCES, "STOPPED");
	765
[13633]	766	STAM_REG(pVM, &pVM->tm.s.StatTimerStopR3, STAMTYPE_PROFILE, "/TM/TimerStopR3", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerStop calls made in ring-3.");
	767	STAM_REG(pVM, &pVM->tm.s.StatTimerStopRZ, STAMTYPE_PROFILE, "/TM/TimerStopRZ", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerStop calls made in ring-0 / RC.");
[1]	768
[13633]	769	STAM_REG(pVM, &pVM->tm.s.StatVirtualGet, STAMTYPE_COUNTER, "/TM/VirtualGet", STAMUNIT_OCCURENCES, "The number of times TMTimerGet was called when the clock was running.");
	770	STAM_REG(pVM, &pVM->tm.s.StatVirtualGetSetFF, STAMTYPE_COUNTER, "/TM/VirtualGetSetFF", STAMUNIT_OCCURENCES, "Times we set the FF when calling TMTimerGet.");
[19753]	771	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGet, STAMTYPE_COUNTER, "/TM/VirtualSyncGet", STAMUNIT_OCCURENCES, "The number of times tmVirtualSyncGetEx was called.");
[37517]	772	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetAdjLast, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/AdjLast", STAMUNIT_OCCURENCES, "Times we've adjusted against the last returned time stamp .");
[19810]	773	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetELoop, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/ELoop", STAMUNIT_OCCURENCES, "Times tmVirtualSyncGetEx has given up getting a consistent virtual sync data set.");
[19803]	774	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetExpired, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/Expired", STAMUNIT_OCCURENCES, "Times tmVirtualSyncGetEx encountered an expired timer stopping the clock.");
	775	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetLocked, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/Locked", STAMUNIT_OCCURENCES, "Times we successfully acquired the lock in tmVirtualSyncGetEx.");
	776	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetLockless, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/Lockless", STAMUNIT_OCCURENCES, "Times tmVirtualSyncGetEx returned without needing to take the lock.");
	777	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetSetFF, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/SetFF", STAMUNIT_OCCURENCES, "Times we set the FF when calling tmVirtualSyncGetEx.");
[13633]	778	STAM_REG(pVM, &pVM->tm.s.StatVirtualPause, STAMTYPE_COUNTER, "/TM/VirtualPause", STAMUNIT_OCCURENCES, "The number of times TMR3TimerPause was called.");
	779	STAM_REG(pVM, &pVM->tm.s.StatVirtualResume, STAMTYPE_COUNTER, "/TM/VirtualResume", STAMUNIT_OCCURENCES, "The number of times TMR3TimerResume was called.");
[1]	780
[13633]	781	STAM_REG(pVM, &pVM->tm.s.StatTimerCallbackSetFF, STAMTYPE_COUNTER, "/TM/CallbackSetFF", STAMUNIT_OCCURENCES, "The number of times the timer callback set FF.");
[54195]	782	STAM_REG(pVM, &pVM->tm.s.StatTimerCallback, STAMTYPE_COUNTER, "/TM/Callback", STAMUNIT_OCCURENCES, "The number of times the timer callback is invoked.");
[1]	783
[13633]	784	STAM_REG(pVM, &pVM->tm.s.StatTSCCatchupLE010, STAMTYPE_COUNTER, "/TM/TSC/Intercept/CatchupLE010", STAMUNIT_OCCURENCES, "In catch-up mode, 10% or lower.");
	785	STAM_REG(pVM, &pVM->tm.s.StatTSCCatchupLE025, STAMTYPE_COUNTER, "/TM/TSC/Intercept/CatchupLE025", STAMUNIT_OCCURENCES, "In catch-up mode, 25%-11%.");
	786	STAM_REG(pVM, &pVM->tm.s.StatTSCCatchupLE100, STAMTYPE_COUNTER, "/TM/TSC/Intercept/CatchupLE100", STAMUNIT_OCCURENCES, "In catch-up mode, 100%-26%.");
	787	STAM_REG(pVM, &pVM->tm.s.StatTSCCatchupOther, STAMTYPE_COUNTER, "/TM/TSC/Intercept/CatchupOther", STAMUNIT_OCCURENCES, "In catch-up mode, > 100%.");
	788	STAM_REG(pVM, &pVM->tm.s.StatTSCNotFixed, STAMTYPE_COUNTER, "/TM/TSC/Intercept/NotFixed", STAMUNIT_OCCURENCES, "TSC is not fixed, it may run at variable speed.");
	789	STAM_REG(pVM, &pVM->tm.s.StatTSCNotTicking, STAMTYPE_COUNTER, "/TM/TSC/Intercept/NotTicking", STAMUNIT_OCCURENCES, "TSC is not ticking.");
	790	STAM_REG(pVM, &pVM->tm.s.StatTSCSyncNotTicking, STAMTYPE_COUNTER, "/TM/TSC/Intercept/SyncNotTicking", STAMUNIT_OCCURENCES, "VirtualSync isn't ticking.");
	791	STAM_REG(pVM, &pVM->tm.s.StatTSCWarp, STAMTYPE_COUNTER, "/TM/TSC/Intercept/Warp", STAMUNIT_OCCURENCES, "Warpdrive is active.");
[20678]	792	STAM_REG(pVM, &pVM->tm.s.StatTSCSet, STAMTYPE_COUNTER, "/TM/TSC/Sets", STAMUNIT_OCCURENCES, "Calls to TMCpuTickSet.");
[22242]	793	STAM_REG(pVM, &pVM->tm.s.StatTSCUnderflow, STAMTYPE_COUNTER, "/TM/TSC/Underflow", STAMUNIT_OCCURENCES, "TSC underflow; corrected with last seen value .");
[51852]	794	STAM_REG(pVM, &pVM->tm.s.StatVirtualPause, STAMTYPE_COUNTER, "/TM/TSC/Pause", STAMUNIT_OCCURENCES, "The number of times the TSC was paused.");
	795	STAM_REG(pVM, &pVM->tm.s.StatVirtualResume, STAMTYPE_COUNTER, "/TM/TSC/Resume", STAMUNIT_OCCURENCES, "The number of times the TSC was resumed.");
[20685]	796	#endif /* VBOX_WITH_STATISTICS */
[2248]	797
[22890]	798	for (VMCPUID i = 0; i < pVM->cCpus; i++)
[30581]	799	{
[80191]	800	PVMCPU pVCpu = pVM->apCpusR3[i];
	801	STAMR3RegisterF(pVM, &pVCpu->tm.s.offTSCRawSrc, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS, "TSC offset relative the raw source", "/TM/TSC/offCPU%u", i);
[30581]	802	#ifndef VBOX_WITHOUT_NS_ACCOUNTING
[30799]	803	# if defined(VBOX_WITH_STATISTICS) \|\| defined(VBOX_WITH_NS_ACCOUNTING_STATS)
[80191]	804	STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsTotal, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Resettable: Total CPU run time.", "/TM/CPU/%02u", i);
	805	STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsExecuting, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent executing guest code.", "/TM/CPU/%02u/PrfExecuting", i);
	806	STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsExecLong, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent executing guest code - long hauls.", "/TM/CPU/%02u/PrfExecLong", i);
	807	STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsExecShort, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent executing guest code - short stretches.", "/TM/CPU/%02u/PrfExecShort", i);
	808	STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsExecTiny, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent executing guest code - tiny bits.", "/TM/CPU/%02u/PrfExecTiny", i);
	809	STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsHalted, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent halted.", "/TM/CPU/%02u/PrfHalted", i);
	810	STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsOther, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent in the VMM or preempted.", "/TM/CPU/%02u/PrfOther", i);
[30684]	811	# endif
[80191]	812	STAMR3RegisterF(pVM, &pVCpu->tm.s.cNsTotal, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Total CPU run time.", "/TM/CPU/%02u/cNsTotal", i);
	813	STAMR3RegisterF(pVM, &pVCpu->tm.s.cNsExecuting, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Time spent executing guest code.", "/TM/CPU/%02u/cNsExecuting", i);
	814	STAMR3RegisterF(pVM, &pVCpu->tm.s.cNsHalted, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Time spent halted.", "/TM/CPU/%02u/cNsHalted", i);
	815	STAMR3RegisterF(pVM, &pVCpu->tm.s.cNsOther, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Time spent in the VMM or preempted.", "/TM/CPU/%02u/cNsOther", i);
	816	STAMR3RegisterF(pVM, &pVCpu->tm.s.cPeriodsExecuting, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Times executed guest code.", "/TM/CPU/%02u/cPeriodsExecuting", i);
	817	STAMR3RegisterF(pVM, &pVCpu->tm.s.cPeriodsHalted, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Times halted.", "/TM/CPU/%02u/cPeriodsHalted", i);
	818	STAMR3RegisterF(pVM, &pVCpu->tm.s.CpuLoad.cPctExecuting, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent executing guest code recently.", "/TM/CPU/%02u/pctExecuting", i);
	819	STAMR3RegisterF(pVM, &pVCpu->tm.s.CpuLoad.cPctHalted, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent halted recently.", "/TM/CPU/%02u/pctHalted", i);
	820	STAMR3RegisterF(pVM, &pVCpu->tm.s.CpuLoad.cPctOther, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent in the VMM or preempted recently.", "/TM/CPU/%02u/pctOther", i);
[30581]	821	#endif
	822	}
[30586]	823	#ifndef VBOX_WITHOUT_NS_ACCOUNTING
[30684]	824	STAMR3RegisterF(pVM, &pVM->tm.s.CpuLoad.cPctExecuting, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent executing guest code recently.", "/TM/CPU/pctExecuting");
	825	STAMR3RegisterF(pVM, &pVM->tm.s.CpuLoad.cPctHalted, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent halted recently.", "/TM/CPU/pctHalted");
	826	STAMR3RegisterF(pVM, &pVM->tm.s.CpuLoad.cPctOther, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent in the VMM or preempted recently.", "/TM/CPU/pctOther");
[30586]	827	#endif
[20685]	828
	829	#ifdef VBOX_WITH_STATISTICS
[13633]	830	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncCatchup, STAMTYPE_PROFILE_ADV, "/TM/VirtualSync/CatchUp", STAMUNIT_TICKS_PER_OCCURENCE, "Counting and measuring the times spent catching up.");
	831	STAM_REG(pVM, (void *)&pVM->tm.s.fVirtualSyncCatchUp, STAMTYPE_U8, "/TM/VirtualSync/CatchUpActive", STAMUNIT_NONE, "Catch-Up active indicator.");
	832	STAM_REG(pVM, (void *)&pVM->tm.s.u32VirtualSyncCatchUpPercentage, STAMTYPE_U32, "/TM/VirtualSync/CatchUpPercentage", STAMUNIT_PCT, "The catch-up percentage. (+100/100 to get clock multiplier)");
[19709]	833	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncFF, STAMTYPE_PROFILE, "/TM/VirtualSync/FF", STAMUNIT_TICKS_PER_OCCURENCE, "Time spent in TMR3VirtualSyncFF by all but the dedicate timer EMT.");
[13633]	834	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGiveUp, STAMTYPE_COUNTER, "/TM/VirtualSync/GiveUp", STAMUNIT_OCCURENCES, "Times the catch-up was abandoned.");
	835	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGiveUpBeforeStarting, STAMTYPE_COUNTER, "/TM/VirtualSync/GiveUpBeforeStarting",STAMUNIT_OCCURENCES, "Times the catch-up was abandoned before even starting. (Typically debugging++.)");
	836	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncRun, STAMTYPE_COUNTER, "/TM/VirtualSync/Run", STAMUNIT_OCCURENCES, "Times the virtual sync timer queue was considered.");
	837	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncRunRestart, STAMTYPE_COUNTER, "/TM/VirtualSync/Run/Restarts", STAMUNIT_OCCURENCES, "Times the clock was restarted after a run.");
	838	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncRunStop, STAMTYPE_COUNTER, "/TM/VirtualSync/Run/Stop", STAMUNIT_OCCURENCES, "Times the clock was stopped when calculating the current time before examining the timers.");
	839	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncRunStoppedAlready, STAMTYPE_COUNTER, "/TM/VirtualSync/Run/StoppedAlready", STAMUNIT_OCCURENCES, "Times the clock was already stopped elsewhere (TMVirtualSyncGet).");
	840	STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncRunSlack, STAMTYPE_PROFILE, "/TM/VirtualSync/Run/Slack", STAMUNIT_NS_PER_OCCURENCE, "The scheduling slack. (Catch-up handed out when running timers.)");
[2248]	841	for (unsigned i = 0; i < RT_ELEMENTS(pVM->tm.s.aVirtualSyncCatchUpPeriods); i++)
	842	{
[13633]	843	STAMR3RegisterF(pVM, &pVM->tm.s.aVirtualSyncCatchUpPeriods[i].u32Percentage, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "The catch-up percentage.", "/TM/VirtualSync/Periods/%u", i);
	844	STAMR3RegisterF(pVM, &pVM->tm.s.aStatVirtualSyncCatchupAdjust[i], STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Times adjusted to this period.", "/TM/VirtualSync/Periods/%u/Adjust", i);
	845	STAMR3RegisterF(pVM, &pVM->tm.s.aStatVirtualSyncCatchupInitial[i], STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Times started in this period.", "/TM/VirtualSync/Periods/%u/Initial", i);
	846	STAMR3RegisterF(pVM, &pVM->tm.s.aVirtualSyncCatchUpPeriods[i].u64Start, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Start of this period (lag).", "/TM/VirtualSync/Periods/%u/Start", i);
[2248]	847	}
[1]	848	#endif /* VBOX_WITH_STATISTICS */
	849
	850	/*
	851	* Register info handlers.
	852	*/
[2283]	853	DBGFR3InfoRegisterInternalEx(pVM, "timers", "Dumps all timers. No arguments.", tmR3TimerInfo, DBGFINFO_FLAGS_RUN_ON_EMT);
	854	DBGFR3InfoRegisterInternalEx(pVM, "activetimers", "Dumps active all timers. No arguments.", tmR3TimerInfoActive, DBGFINFO_FLAGS_RUN_ON_EMT);
	855	DBGFR3InfoRegisterInternalEx(pVM, "clocks", "Display the time of the various clocks.", tmR3InfoClocks, DBGFINFO_FLAGS_RUN_ON_EMT);
[80159]	856	DBGFR3InfoRegisterInternalArgv(pVM, "cpuload", "Display the CPU load stats (--help for details).", tmR3InfoCpuLoad, 0);
[1]	857
	858	return VINF_SUCCESS;
	859	}
	860
[13796]	861
[13778]	862	/**
[2581]	863	* Checks if the host CPU has a fixed TSC frequency.
[2611]	864	*
[2581]	865	* @returns true if it has, false if it hasn't.
[2611]	866	*
[55116]	867	* @remarks This test doesn't bother with very old CPUs that don't do power
[2581]	868	* management or any other stuff that might influence the TSC rate.
	869	* This isn't currently relevant.
	870	*/
[9354]	871	static bool tmR3HasFixedTSC(PVM pVM)
[2581]	872	{
[54549]	873	/*
	874	* ASSUME that if the GIP is in invariant TSC mode, it's because the CPU
	875	* actually has invariant TSC.
	876	*/
[53430]	877	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
	878	if (pGip->u32Mode == SUPGIPMODE_INVARIANT_TSC)
	879	return true;
	880
[54549]	881	/*
	882	* Go by features and model info from the CPUID instruction.
	883	*/
[2581]	884	if (ASMHasCpuId())
	885	{
	886	uint32_t uEAX, uEBX, uECX, uEDX;
[9354]	887
[54549]	888	/*
	889	* By feature. (Used to be AMD specific, intel seems to have picked it up.)
	890	*/
	891	ASMCpuId(0x80000000, &uEAX, &uEBX, &uECX, &uEDX);
	892	if (uEAX >= 0x80000007 && ASMIsValidExtRange(uEAX))
	893	{
	894	ASMCpuId(0x80000007, &uEAX, &uEBX, &uECX, &uEDX);
	895	if ( (uEDX & X86_CPUID_AMD_ADVPOWER_EDX_TSCINVAR) /* TscInvariant */
	896	&& pGip->u32Mode != SUPGIPMODE_ASYNC_TSC) /* No fixed tsc if the gip timer is in async mode. */
	897	return true;
	898	}
	899
	900	/*
	901	* By model.
	902	*/
[23794]	903	if (CPUMGetHostCpuVendor(pVM) == CPUMCPUVENDOR_AMD)
[2581]	904	{
[2611]	905	/*
[2581]	906	* AuthenticAMD - Check for APM support and that TscInvariant is set.
	907	*
[2611]	908	* This test isn't correct with respect to fixed/non-fixed TSC and
[2581]	909	* older models, but this isn't relevant since the result is currently
[33540]	910	* only used for making a decision on AMD-V models.
[2581]	911	*/
[54549]	912	#if 0 /* Promoted to generic */
[2581]	913	ASMCpuId(0x80000000, &uEAX, &uEBX, &uECX, &uEDX);
	914	if (uEAX >= 0x80000007)
	915	{
	916	ASMCpuId(0x80000007, &uEAX, &uEBX, &uECX, &uEDX);
[10567]	917	if ( (uEDX & X86_CPUID_AMD_ADVPOWER_EDX_TSCINVAR) /* TscInvariant */
[53430]	918	&& ( pGip->u32Mode == SUPGIPMODE_SYNC_TSC /* No fixed tsc if the gip timer is in async mode. */
	919	\|\| pGip->u32Mode == SUPGIPMODE_INVARIANT_TSC))
[2581]	920	return true;
	921	}
[54549]	922	#endif
[2581]	923	}
[23794]	924	else if (CPUMGetHostCpuVendor(pVM) == CPUMCPUVENDOR_INTEL)
[2581]	925	{
[2611]	926	/*
[2581]	927	* GenuineIntel - Check the model number.
[2611]	928	*
[2581]	929	* This test is lacking in the same way and for the same reasons
	930	* as the AMD test above.
	931	*/
[55116]	932	/** @todo use ASMGetCpuFamily() and ASMGetCpuModel() here. */
[2581]	933	ASMCpuId(1, &uEAX, &uEBX, &uECX, &uEDX);
	934	unsigned uModel = (uEAX >> 4) & 0x0f;
	935	unsigned uFamily = (uEAX >> 8) & 0x0f;
	936	if (uFamily == 0x0f)
	937	uFamily += (uEAX >> 20) & 0xff;
	938	if (uFamily >= 0x06)
	939	uModel += ((uEAX >> 16) & 0x0f) << 4;
	940	if ( (uFamily == 0x0f /P4/ && uModel >= 0x03)
	941	\|\| (uFamily == 0x06 /P2/P3/ && uModel >= 0x0e))
	942	return true;
	943	}
[42492]	944	else if (CPUMGetHostCpuVendor(pVM) == CPUMCPUVENDOR_VIA)
	945	{
	946	/*
	947	* CentaurHauls - Check the model, family and stepping.
	948	*
	949	* This only checks for VIA CPU models Nano X2, Nano X3,
	950	* Eden X2 and QuadCore.
	951	*/
[55116]	952	/** @todo use ASMGetCpuFamily() and ASMGetCpuModel() here. */
[42493]	953	ASMCpuId(1, &uEAX, &uEBX, &uECX, &uEDX);
[42492]	954	unsigned uStepping = (uEAX & 0x0f);
	955	unsigned uModel = (uEAX >> 4) & 0x0f;
	956	unsigned uFamily = (uEAX >> 8) & 0x0f;
	957	if ( uFamily == 0x06
	958	&& uModel == 0x0f
	959	&& uStepping >= 0x0c
	960	&& uStepping <= 0x0f)
	961	return true;
	962	}
[76886]	963	else if (CPUMGetHostCpuVendor(pVM) == CPUMCPUVENDOR_SHANGHAI)
	964	{
	965	/*
	966	* Shanghai - Check the model, family and stepping.
	967	*/
	968	/** @todo use ASMGetCpuFamily() and ASMGetCpuModel() here. */
	969	ASMCpuId(1, &uEAX, &uEBX, &uECX, &uEDX);
	970	unsigned uFamily = (uEAX >> 8) & 0x0f;
	971	if ( uFamily == 0x06
	972	\|\| uFamily == 0x07)
	973	{
	974	return true;
	975	}
	976	}
[2581]	977	}
	978	return false;
	979	}
	980
	981
	982	/**
[1]	983	* Calibrate the CPU tick.
	984	*
	985	* @returns Number of ticks per second.
	986	*/
[62644]	987	static uint64_t tmR3CalibrateTSC(void)
[1]	988	{
[54549]	989	uint64_t u64Hz;
	990
[1]	991	/*
[54549]	992	* Use GIP when available. Prefere the nominal one, no need to wait for it.
[1]	993	*/
[54549]	994	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
	995	if (pGip)
[53430]	996	{
[54549]	997	u64Hz = pGip->u64CpuHz;
	998	if (u64Hz < _1T && u64Hz > _1M)
	999	return u64Hz;
	1000	AssertFailed(); /* This shouldn't happen. */
[53430]	1001
[54549]	1002	u64Hz = SUPGetCpuHzFromGip(pGip);
	1003	if (u64Hz < _1T && u64Hz > _1M)
	1004	return u64Hz;
[2828]	1005
[54549]	1006	AssertFailed(); /* This shouldn't happen. */
[1]	1007	}
[54549]	1008	/* else: This should only happen in fake SUPLib mode, which we don't really support any more... */
[1]	1009
[53430]	1010	/* Call this once first to make sure it's initialized. */
[1]	1011	RTTimeNanoTS();
	1012
	1013	/*
	1014	* Yield the CPU to increase our chances of getting
	1015	* a correct value.
	1016	*/
	1017	RTThreadYield(); /* Try avoid interruptions between TSC and NanoTS samplings. */
	1018	static const unsigned s_auSleep[5] = { 50, 30, 30, 40, 40 };
	1019	uint64_t au64Samples[5];
	1020	unsigned i;
[11311]	1021	for (i = 0; i < RT_ELEMENTS(au64Samples); i++)
[1]	1022	{
[25728]	1023	RTMSINTERVAL cMillies;
	1024	int cTries = 5;
	1025	uint64_t u64Start = ASMReadTSC();
	1026	uint64_t u64End;
	1027	uint64_t StartTS = RTTimeNanoTS();
	1028	uint64_t EndTS;
[1]	1029	do
	1030	{
	1031	RTThreadSleep(s_auSleep[i]);
	1032	u64End = ASMReadTSC();
	1033	EndTS = RTTimeNanoTS();
[25728]	1034	cMillies = (RTMSINTERVAL)((EndTS - StartTS + 500000) / 1000000);
[1]	1035	} while ( cMillies == 0 /* the sleep may be interrupted... */
	1036	\|\| (cMillies < 20 && --cTries > 0));
	1037	uint64_t u64Diff = u64End - u64Start;
	1038
	1039	au64Samples[i] = (u64Diff * 1000) / cMillies;
	1040	AssertMsg(cTries > 0, ("cMillies=%d i=%d\n", cMillies, i));
	1041	}
	1042
	1043	/*
	1044	* Discard the highest and lowest results and calculate the average.
	1045	*/
	1046	unsigned iHigh = 0;
	1047	unsigned iLow = 0;
[11311]	1048	for (i = 1; i < RT_ELEMENTS(au64Samples); i++)
[1]	1049	{
	1050	if (au64Samples[i] < au64Samples[iLow])
	1051	iLow = i;
	1052	if (au64Samples[i] > au64Samples[iHigh])
	1053	iHigh = i;
	1054	}
	1055	au64Samples[iLow] = 0;
	1056	au64Samples[iHigh] = 0;
	1057
	1058	u64Hz = au64Samples[0];
[11311]	1059	for (i = 1; i < RT_ELEMENTS(au64Samples); i++)
[1]	1060	u64Hz += au64Samples[i];
[11311]	1061	u64Hz /= RT_ELEMENTS(au64Samples) - 2;
[1]	1062
	1063	return u64Hz;
	1064	}
	1065
	1066
	1067	/**
[5509]	1068	* Finalizes the TM initialization.
	1069	*
	1070	* @returns VBox status code.
[58122]	1071	* @param pVM The cross context VM structure.
[5509]	1072	*/
[22808]	1073	VMM_INT_DECL(int) TMR3InitFinalize(PVM pVM)
[5509]	1074	{
	1075	int rc;
	1076
[30586]	1077	/*
	1078	* Resolve symbols.
	1079	*/
[70948]	1080	if (VM_IS_RAW_MODE_ENABLED(pVM))
[45808]	1081	{
[58116]	1082	rc = PDMR3LdrGetSymbolRC(pVM, NULL, "tmVirtualNanoTSBad", &pVM->tm.s.VirtualGetRawDataRC.pfnBad);
[45808]	1083	AssertRCReturn(rc, rc);
[54270]	1084	rc = PDMR3LdrGetSymbolRC(pVM, NULL, "tmVirtualNanoTSBadCpuIndex", &pVM->tm.s.VirtualGetRawDataRC.pfnBadCpuIndex);
	1085	AssertRCReturn(rc, rc);
[54202]	1086	rc = PDMR3LdrGetSymbolRC(pVM, NULL, "tmVirtualNanoTSRediscover", &pVM->tm.s.VirtualGetRawDataRC.pfnRediscover);
[45808]	1087	AssertRCReturn(rc, rc);
[54270]	1088	pVM->tm.s.pfnVirtualGetRawRC = pVM->tm.s.VirtualGetRawDataRC.pfnRediscover;
[45808]	1089	}
[5509]	1090
[58116]	1091	rc = PDMR3LdrGetSymbolR0(pVM, NULL, "tmVirtualNanoTSBad", &pVM->tm.s.VirtualGetRawDataR0.pfnBad);
[5509]	1092	AssertRCReturn(rc, rc);
[54270]	1093	rc = PDMR3LdrGetSymbolR0(pVM, NULL, "tmVirtualNanoTSBadCpuIndex", &pVM->tm.s.VirtualGetRawDataR0.pfnBadCpuIndex);
	1094	AssertRCReturn(rc, rc);
[54202]	1095	rc = PDMR3LdrGetSymbolR0(pVM, NULL, "tmVirtualNanoTSRediscover", &pVM->tm.s.VirtualGetRawDataR0.pfnRediscover);
[5509]	1096	AssertRCReturn(rc, rc);
[54270]	1097	pVM->tm.s.pfnVirtualGetRawR0 = pVM->tm.s.VirtualGetRawDataR0.pfnRediscover;
[5509]	1098
[30586]	1099	#ifndef VBOX_WITHOUT_NS_ACCOUNTING
	1100	/*
[33540]	1101	* Create a timer for refreshing the CPU load stats.
[30586]	1102	*/
	1103	PTMTIMER pTimer;
	1104	rc = TMR3TimerCreateInternal(pVM, TMCLOCK_REAL, tmR3CpuLoadTimer, NULL, "CPU Load Timer", &pTimer);
	1105	if (RT_SUCCESS(rc))
	1106	rc = TMTimerSetMillies(pTimer, 1000);
	1107	#endif
	1108
[54065]	1109	/*
	1110	* GIM is now initialized. Determine if TSC mode switching is allowed (respecting CFGM override).
	1111	*/
[70948]	1112	pVM->tm.s.fTSCModeSwitchAllowed &= tmR3HasFixedTSC(pVM) && GIMIsEnabled(pVM) && !VM_IS_RAW_MODE_ENABLED(pVM);
[55151]	1113	LogRel(("TM: TMR3InitFinalize: fTSCModeSwitchAllowed=%RTbool\n", pVM->tm.s.fTSCModeSwitchAllowed));
[30586]	1114	return rc;
[5509]	1115	}
	1116
	1117
	1118	/**
[1]	1119	* Applies relocations to data and code managed by this
	1120	* component. This function will be called at init and
	1121	* whenever the VMM need to relocate it self inside the GC.
	1122	*
[58122]	1123	* @param pVM The cross context VM structure.
[1]	1124	* @param offDelta Relocation delta relative to old location.
	1125	*/
[22808]	1126	VMM_INT_DECL(void) TMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
[1]	1127	{
	1128	LogFlow(("TMR3Relocate\n"));
[5505]	1129
[1]	1130	pVM->tm.s.paTimerQueuesR0 = MMHyperR3ToR0(pVM, pVM->tm.s.paTimerQueuesR3);
	1131
[70948]	1132	if (VM_IS_RAW_MODE_ENABLED(pVM))
[45808]	1133	{
[54270]	1134	pVM->tm.s.pvGIPRC = MMHyperR3ToRC(pVM, pVM->tm.s.pvGIPR3);
	1135	pVM->tm.s.paTimerQueuesRC = MMHyperR3ToRC(pVM, pVM->tm.s.paTimerQueuesR3);
	1136	pVM->tm.s.VirtualGetRawDataRC.pu64Prev += offDelta;
	1137	pVM->tm.s.VirtualGetRawDataRC.pfnBad += offDelta;
	1138	pVM->tm.s.VirtualGetRawDataRC.pfnBadCpuIndex += offDelta;
	1139	pVM->tm.s.VirtualGetRawDataRC.pfnRediscover += offDelta;
	1140	pVM->tm.s.pfnVirtualGetRawRC += offDelta;
[45808]	1141	}
[5505]	1142
[1]	1143	/*
[13830]	1144	* Iterate the timers updating the pVMRC pointers.
[1]	1145	*/
	1146	for (PTMTIMER pTimer = pVM->tm.s.pCreated; pTimer; pTimer = pTimer->pBigNext)
	1147	{
[13633]	1148	pTimer->pVMRC = pVM->pVMRC;
[80281]	1149	pTimer->pVMR0 = pVM->pVMR0ForCall; /** @todo fix properly */
[1]	1150	}
	1151	}
	1152
	1153
	1154	/**
	1155	* Terminates the TM.
	1156	*
	1157	* Termination means cleaning up and freeing all resources,
	1158	* the VM it self is at this point powered off or suspended.
	1159	*
	1160	* @returns VBox status code.
[58122]	1161	* @param pVM The cross context VM structure.
[1]	1162	*/
[22808]	1163	VMM_INT_DECL(int) TMR3Term(PVM pVM)
[1]	1164	{
	1165	AssertMsg(pVM->tm.s.offVM, ("bad init order!\n"));
	1166	if (pVM->tm.s.pTimer)
	1167	{
	1168	int rc = RTTimerDestroy(pVM->tm.s.pTimer);
	1169	AssertRC(rc);
	1170	pVM->tm.s.pTimer = NULL;
	1171	}
	1172
	1173	return VINF_SUCCESS;
	1174	}
	1175
[13796]	1176
[13778]	1177	/**
[1]	1178	* The VM is being reset.
	1179	*
	1180	* For the TM component this means that a rescheduling is preformed,
	1181	* the FF is cleared and but without running the queues. We'll have to
	1182	* check if this makes sense or not, but it seems like a good idea now....
	1183	*
[58122]	1184	* @param pVM The cross context VM structure.
[1]	1185	*/
[22808]	1186	VMM_INT_DECL(void) TMR3Reset(PVM pVM)
[1]	1187	{
	1188	LogFlow(("TMR3Reset:\n"));
	1189	VM_ASSERT_EMT(pVM);
[37527]	1190	TM_LOCK_TIMERS(pVM);
[1]	1191
	1192	/*
[2884]	1193	* Abort any pending catch up.
[19752]	1194	* This isn't perfect...
[2884]	1195	*/
	1196	if (pVM->tm.s.fVirtualSyncCatchUp)
	1197	{
[19660]	1198	const uint64_t offVirtualNow = TMVirtualGetNoCheck(pVM);
	1199	const uint64_t offVirtualSyncNow = TMVirtualSyncGetNoCheck(pVM);
[2884]	1200	if (pVM->tm.s.fVirtualSyncCatchUp)
	1201	{
	1202	STAM_PROFILE_ADV_STOP(&pVM->tm.s.StatVirtualSyncCatchup, c);
	1203
	1204	const uint64_t offOld = pVM->tm.s.offVirtualSyncGivenUp;
	1205	const uint64_t offNew = offVirtualNow - offVirtualSyncNow;
	1206	Assert(offOld <= offNew);
[19803]	1207	ASMAtomicWriteU64((uint64_t volatile *)&pVM->tm.s.offVirtualSyncGivenUp, offNew);
	1208	ASMAtomicWriteU64((uint64_t volatile *)&pVM->tm.s.offVirtualSync, offNew);
	1209	ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, false);
[20050]	1210	LogRel(("TM: Aborting catch-up attempt on reset with a %'RU64 ns lag on reset; new total: %'RU64 ns\n", offNew - offOld, offNew));
[2884]	1211	}
	1212	}
	1213
	1214	/*
[1]	1215	* Process the queues.
	1216	*/
	1217	for (int i = 0; i < TMCLOCK_MAX; i++)
	1218	tmTimerQueueSchedule(pVM, &pVM->tm.s.paTimerQueuesR3[i]);
	1219	#ifdef VBOX_STRICT
	1220	tmTimerQueuesSanityChecks(pVM, "TMR3Reset");
	1221	#endif
[19444]	1222
[80191]	1223	PVMCPU pVCpuDst = pVM->apCpusR3[pVM->tm.s.idTimerCpu];
[19660]	1224	VMCPU_FF_CLEAR(pVCpuDst, VMCPU_FF_TIMER); /** @todo FIXME: this isn't right. */
[54065]	1225
	1226	/*
	1227	* Switch TM TSC mode back to the original mode after a reset for
	1228	* paravirtualized guests that alter the TM TSC mode during operation.
	1229	*/
	1230	if ( pVM->tm.s.fTSCModeSwitchAllowed
	1231	&& pVM->tm.s.enmTSCMode != pVM->tm.s.enmOriginalTSCMode)
	1232	{
[54444]	1233	VM_ASSERT_EMT0(pVM);
[80191]	1234	tmR3CpuTickParavirtDisable(pVM, pVM->apCpusR3[0], NULL /* pvData */);
[54065]	1235	}
	1236	Assert(!GIMIsParavirtTscEnabled(pVM));
	1237	pVM->tm.s.fParavirtTscEnabled = false;
	1238
[68020]	1239	/*
[68106]	1240	* Reset TSC to avoid a Windows 8+ bug (see @bugref{8926}). If Windows
	1241	* sees TSC value beyond 0x40000000000 at startup, it will reset the
	1242	* TSC on boot-up CPU only, causing confusion and mayhem with SMP.
[68020]	1243	*/
	1244	VM_ASSERT_EMT0(pVM);
	1245	uint64_t offTscRawSrc;
[72522]	1246	switch (pVM->tm.s.enmTSCMode)
[68020]	1247	{
[72522]	1248	case TMTSCMODE_REAL_TSC_OFFSET:
	1249	offTscRawSrc = SUPReadTsc();
	1250	break;
	1251	case TMTSCMODE_DYNAMIC:
	1252	case TMTSCMODE_VIRT_TSC_EMULATED:
	1253	offTscRawSrc = TMVirtualSyncGetNoCheck(pVM);
	1254	offTscRawSrc = ASMMultU64ByU32DivByU32(offTscRawSrc, pVM->tm.s.cTSCTicksPerSecond, TMCLOCK_FREQ_VIRTUAL);
	1255	break;
	1256	case TMTSCMODE_NATIVE_API:
	1257	/** @todo NEM TSC reset on reset for Windows8+ bug workaround. */
	1258	offTscRawSrc = 0;
	1259	break;
	1260	default:
	1261	AssertFailedBreakStmt(offTscRawSrc = 0);
[68020]	1262	}
[80191]	1263	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
[68020]	1264	{
[80191]	1265	PVMCPU pVCpu = pVM->apCpusR3[idCpu];
	1266	pVCpu->tm.s.offTSCRawSrc = offTscRawSrc;
	1267	pVCpu->tm.s.u64TSC = 0;
	1268	pVCpu->tm.s.u64TSCLastSeen = 0;
[68020]	1269	}
	1270
[37527]	1271	TM_UNLOCK_TIMERS(pVM);
[1]	1272	}
	1273
	1274
	1275	/**
[13633]	1276	* Resolve a builtin RC symbol.
[1]	1277	* Called by PDM when loading or relocating GC modules.
	1278	*
	1279	* @returns VBox status
[58122]	1280	* @param pVM The cross context VM structure.
[13633]	1281	* @param pszSymbol Symbol to resolve.
	1282	* @param pRCPtrValue Where to store the symbol value.
	1283	* @remark This has to work before TMR3Relocate() is called.
[1]	1284	*/
[22808]	1285	VMM_INT_DECL(int) TMR3GetImportRC(PVM pVM, const char *pszSymbol, PRTRCPTR pRCPtrValue)
[1]	1286	{
	1287	if (!strcmp(pszSymbol, "g_pSUPGlobalInfoPage"))
[13633]	1288	*pRCPtrValue = MMHyperR3ToRC(pVM, &pVM->tm.s.pvGIPRC);
[1]	1289	//else if (..)
	1290	else
	1291	return VERR_SYMBOL_NOT_FOUND;
	1292	return VINF_SUCCESS;
	1293	}
	1294
	1295
	1296	/**
	1297	* Execute state save operation.
	1298	*
	1299	* @returns VBox status code.
[58122]	1300	* @param pVM The cross context VM structure.
[1]	1301	* @param pSSM SSM operation handle.
	1302	*/
	1303	static DECLCALLBACK(int) tmR3Save(PVM pVM, PSSMHANDLE pSSM)
	1304	{
	1305	LogFlow(("tmR3Save:\n"));
[19032]	1306	#ifdef VBOX_STRICT
[22890]	1307	for (VMCPUID i = 0; i < pVM->cCpus; i++)
[19032]	1308	{
[80191]	1309	PVMCPU pVCpu = pVM->apCpusR3[i];
[19032]	1310	Assert(!pVCpu->tm.s.fTSCTicking);
	1311	}
[19324]	1312	Assert(!pVM->tm.s.cVirtualTicking);
[1]	1313	Assert(!pVM->tm.s.fVirtualSyncTicking);
[51852]	1314	Assert(!pVM->tm.s.cTSCsTicking);
[19032]	1315	#endif
[1]	1316
	1317	/*
	1318	* Save the virtual clocks.
	1319	*/
	1320	/* the virtual clock. */
	1321	SSMR3PutU64(pSSM, TMCLOCK_FREQ_VIRTUAL);
	1322	SSMR3PutU64(pSSM, pVM->tm.s.u64Virtual);
	1323
	1324	/* the virtual timer synchronous clock. */
	1325	SSMR3PutU64(pSSM, pVM->tm.s.u64VirtualSync);
[2283]	1326	SSMR3PutU64(pSSM, pVM->tm.s.offVirtualSync);
	1327	SSMR3PutU64(pSSM, pVM->tm.s.offVirtualSyncGivenUp);
[1]	1328	SSMR3PutU64(pSSM, pVM->tm.s.u64VirtualSyncCatchUpPrev);
	1329	SSMR3PutBool(pSSM, pVM->tm.s.fVirtualSyncCatchUp);
	1330
	1331	/* real time clock */
	1332	SSMR3PutU64(pSSM, TMCLOCK_FREQ_REAL);
	1333
[22890]	1334	/* the cpu tick clock. */
	1335	for (VMCPUID i = 0; i < pVM->cCpus; i++)
[19032]	1336	{
[80191]	1337	PVMCPU pVCpu = pVM->apCpusR3[i];
[19032]	1338	SSMR3PutU64(pSSM, TMCpuTickGet(pVCpu));
	1339	}
[1]	1340	return SSMR3PutU64(pSSM, pVM->tm.s.cTSCTicksPerSecond);
	1341	}
	1342
	1343
	1344	/**
	1345	* Execute state load operation.
	1346	*
	1347	* @returns VBox status code.
[58122]	1348	* @param pVM The cross context VM structure.
[1]	1349	* @param pSSM SSM operation handle.
[22480]	1350	* @param uVersion Data layout version.
[22793]	1351	* @param uPass The data pass.
[1]	1352	*/
[22793]	1353	static DECLCALLBACK(int) tmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
[1]	1354	{
	1355	LogFlow(("tmR3Load:\n"));
[19032]	1356
[22793]	1357	Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
[19032]	1358	#ifdef VBOX_STRICT
[22890]	1359	for (VMCPUID i = 0; i < pVM->cCpus; i++)
[19032]	1360	{
[80191]	1361	PVMCPU pVCpu = pVM->apCpusR3[i];
[19032]	1362	Assert(!pVCpu->tm.s.fTSCTicking);
	1363	}
[19324]	1364	Assert(!pVM->tm.s.cVirtualTicking);
[1]	1365	Assert(!pVM->tm.s.fVirtualSyncTicking);
[51852]	1366	Assert(!pVM->tm.s.cTSCsTicking);
[19032]	1367	#endif
[1]	1368
	1369	/*
	1370	* Validate version.
	1371	*/
[22480]	1372	if (uVersion != TM_SAVED_STATE_VERSION)
[1]	1373	{
[22480]	1374	AssertMsgFailed(("tmR3Load: Invalid version uVersion=%d!\n", uVersion));
[1]	1375	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
	1376	}
	1377
	1378	/*
	1379	* Load the virtual clock.
	1380	*/
[19324]	1381	pVM->tm.s.cVirtualTicking = 0;
[1]	1382	/* the virtual clock. */
	1383	uint64_t u64Hz;
	1384	int rc = SSMR3GetU64(pSSM, &u64Hz);
[13816]	1385	if (RT_FAILURE(rc))
[1]	1386	return rc;
	1387	if (u64Hz != TMCLOCK_FREQ_VIRTUAL)
	1388	{
[20050]	1389	AssertMsgFailed(("The virtual clock frequency differs! Saved: %'RU64 Binary: %'RU64\n",
[1]	1390	u64Hz, TMCLOCK_FREQ_VIRTUAL));
	1391	return VERR_SSM_VIRTUAL_CLOCK_HZ;
	1392	}
	1393	SSMR3GetU64(pSSM, &pVM->tm.s.u64Virtual);
	1394	pVM->tm.s.u64VirtualOffset = 0;
	1395
	1396	/* the virtual timer synchronous clock. */
	1397	pVM->tm.s.fVirtualSyncTicking = false;
	1398	uint64_t u64;
	1399	SSMR3GetU64(pSSM, &u64);
[2248]	1400	pVM->tm.s.u64VirtualSync = u64;
	1401	SSMR3GetU64(pSSM, &u64);
[2283]	1402	pVM->tm.s.offVirtualSync = u64;
[1]	1403	SSMR3GetU64(pSSM, &u64);
[2283]	1404	pVM->tm.s.offVirtualSyncGivenUp = u64;
	1405	SSMR3GetU64(pSSM, &u64);
[1]	1406	pVM->tm.s.u64VirtualSyncCatchUpPrev = u64;
	1407	bool f;
	1408	SSMR3GetBool(pSSM, &f);
	1409	pVM->tm.s.fVirtualSyncCatchUp = f;
	1410
	1411	/* the real clock */
	1412	rc = SSMR3GetU64(pSSM, &u64Hz);
[13816]	1413	if (RT_FAILURE(rc))
[1]	1414	return rc;
	1415	if (u64Hz != TMCLOCK_FREQ_REAL)
	1416	{
[20050]	1417	AssertMsgFailed(("The real clock frequency differs! Saved: %'RU64 Binary: %'RU64\n",
[1]	1418	u64Hz, TMCLOCK_FREQ_REAL));
[33540]	1419	return VERR_SSM_VIRTUAL_CLOCK_HZ; /* misleading... */
[1]	1420	}
	1421
	1422	/* the cpu tick clock. */
[51959]	1423	pVM->tm.s.cTSCsTicking = 0;
	1424	pVM->tm.s.offTSCPause = 0;
	1425	pVM->tm.s.u64LastPausedTSC = 0;
[22890]	1426	for (VMCPUID i = 0; i < pVM->cCpus; i++)
[19032]	1427	{
[80191]	1428	PVMCPU pVCpu = pVM->apCpusR3[i];
[19032]	1429
	1430	pVCpu->tm.s.fTSCTicking = false;
	1431	SSMR3GetU64(pSSM, &pVCpu->tm.s.u64TSC);
[51959]	1432	if (pVM->tm.s.u64LastPausedTSC < pVCpu->tm.s.u64TSC)
	1433	pVM->tm.s.u64LastPausedTSC = pVCpu->tm.s.u64TSC;
[19032]	1434
[53441]	1435	if (pVM->tm.s.enmTSCMode == TMTSCMODE_REAL_TSC_OFFSET)
[20689]	1436	pVCpu->tm.s.offTSCRawSrc = 0; /** @todo TSC restore stuff and HWACC. */
[19032]	1437	}
	1438
[1]	1439	rc = SSMR3GetU64(pSSM, &u64Hz);
[13816]	1440	if (RT_FAILURE(rc))
[1]	1441	return rc;
[53441]	1442	if (pVM->tm.s.enmTSCMode != TMTSCMODE_REAL_TSC_OFFSET)
[1956]	1443	pVM->tm.s.cTSCTicksPerSecond = u64Hz;
[19032]	1444
[53441]	1445	LogRel(("TM: cTSCTicksPerSecond=%#RX64 (%'RU64) enmTSCMode=%d (%s) (state load)\n",
	1446	pVM->tm.s.cTSCTicksPerSecond, pVM->tm.s.cTSCTicksPerSecond, pVM->tm.s.enmTSCMode, tmR3GetTSCModeName(pVM)));
[1]	1447
[57075]	1448	/* Disabled as this isn't tested, also should this apply only if GIM is enabled etc. */
	1449	#if 0
[1]	1450	/*
[57075]	1451	* If the current host TSC frequency is incompatible with what is in the
	1452	* saved state of the VM, fall back to emulating TSC and disallow TSC mode
	1453	* switches during VM runtime (e.g. by GIM).
	1454	*/
[57107]	1455	if ( GIMIsEnabled(pVM)
	1456	\|\| pVM->tm.s.enmTSCMode == TMTSCMODE_REAL_TSC_OFFSET)
[57075]	1457	{
[57107]	1458	uint64_t uGipCpuHz;
	1459	bool fRelax = RTSystemIsInsideVM();
	1460	bool fCompat = SUPIsTscFreqCompatible(pVM->tm.s.cTSCTicksPerSecond, &uGipCpuHz, fRelax);
	1461	if (!fCompat)
[57075]	1462	{
[57107]	1463	pVM->tm.s.enmTSCMode = TMTSCMODE_VIRT_TSC_EMULATED;
	1464	pVM->tm.s.fTSCModeSwitchAllowed = false;
	1465	if (g_pSUPGlobalInfoPage->u32Mode != SUPGIPMODE_ASYNC_TSC)
	1466	{
	1467	LogRel(("TM: TSC frequency incompatible! uGipCpuHz=%#RX64 (%'RU64) enmTSCMode=%d (%s) fTSCModeSwitchAllowed=%RTbool (state load)\n",
	1468	uGipCpuHz, uGipCpuHz, pVM->tm.s.enmTSCMode, tmR3GetTSCModeName(pVM), pVM->tm.s.fTSCModeSwitchAllowed));
	1469	}
	1470	else
	1471	{
	1472	LogRel(("TM: GIP is async, enmTSCMode=%d (%s) fTSCModeSwitchAllowed=%RTbool (state load)\n",
	1473	uGipCpuHz, uGipCpuHz, pVM->tm.s.enmTSCMode, tmR3GetTSCModeName(pVM), pVM->tm.s.fTSCModeSwitchAllowed));
	1474	}
[57075]	1475	}
	1476	}
	1477	#endif
	1478
	1479	/*
[1]	1480	* Make sure timers get rescheduled immediately.
	1481	*/
[80191]	1482	PVMCPU pVCpuDst = pVM->apCpusR3[pVM->tm.s.idTimerCpu];
[19660]	1483	VMCPU_FF_SET(pVCpuDst, VMCPU_FF_TIMER);
[1]	1484
	1485	return VINF_SUCCESS;
	1486	}
	1487
[82333]	1488	#ifdef VBOX_WITH_STATISTICS
	1489	/** Names the clock of the timer. */
	1490	static const char *tmR3TimerClockName(PTMTIMERR3 pTimer)
	1491	{
	1492	switch (pTimer->enmClock)
	1493	{
	1494	case TMCLOCK_VIRTUAL: return "virtual";
	1495	case TMCLOCK_VIRTUAL_SYNC: return "virtual-sync";
	1496	case TMCLOCK_REAL: return "real";
	1497	case TMCLOCK_TSC: return "tsc";
	1498	case TMCLOCK_MAX: break;
	1499	}
	1500	return "corrupt clock value";
	1501	}
	1502	#endif
[1]	1503
[82333]	1504
[2248]	1505	/**
	1506	* Internal TMR3TimerCreate worker.
[2611]	1507	*
[2248]	1508	* @returns VBox status code.
[58122]	1509	* @param pVM The cross context VM structure.
[2248]	1510	* @param enmClock The timer clock.
	1511	* @param pszDesc The timer description.
	1512	* @param ppTimer Where to store the timer pointer on success.
	1513	*/
	1514	static int tmr3TimerCreate(PVM pVM, TMCLOCK enmClock, const char *pszDesc, PPTMTIMERR3 ppTimer)
[1]	1515	{
	1516	VM_ASSERT_EMT(pVM);
	1517
	1518	/*
	1519	* Allocate the timer.
	1520	*/
[4787]	1521	PTMTIMERR3 pTimer = NULL;
[1]	1522	if (pVM->tm.s.pFree && VM_IS_EMT(pVM))
	1523	{
	1524	pTimer = pVM->tm.s.pFree;
	1525	pVM->tm.s.pFree = pTimer->pBigNext;
	1526	Log3(("TM: Recycling timer %p, new free head %p.\n", pTimer, pTimer->pBigNext));
	1527	}
	1528
	1529	if (!pTimer)
	1530	{
	1531	int rc = MMHyperAlloc(pVM, sizeof(pTimer), 0, MM_TAG_TM, (void *)&pTimer);
[13816]	1532	if (RT_FAILURE(rc))
[1]	1533	return rc;
	1534	Log3(("TM: Allocated new timer %p\n", pTimer));
	1535	}
	1536
	1537	/*
	1538	* Initialize it.
	1539	*/
	1540	pTimer->u64Expire = 0;
	1541	pTimer->enmClock = enmClock;
	1542	pTimer->pVMR3 = pVM;
[80281]	1543	pTimer->pVMR0 = pVM->pVMR0ForCall; /** @todo fix properly */
[13633]	1544	pTimer->pVMRC = pVM->pVMRC;
[1]	1545	pTimer->enmState = TMTIMERSTATE_STOPPED;
	1546	pTimer->offScheduleNext = 0;
	1547	pTimer->offNext = 0;
	1548	pTimer->offPrev = 0;
[20087]	1549	pTimer->pvUser = NULL;
	1550	pTimer->pCritSect = NULL;
[1]	1551	pTimer->pszDesc = pszDesc;
	1552
	1553	/* insert into the list of created timers. */
[37527]	1554	TM_LOCK_TIMERS(pVM);
[1]	1555	pTimer->pBigPrev = NULL;
	1556	pTimer->pBigNext = pVM->tm.s.pCreated;
	1557	pVM->tm.s.pCreated = pTimer;
	1558	if (pTimer->pBigNext)
	1559	pTimer->pBigNext->pBigPrev = pTimer;
	1560	#ifdef VBOX_STRICT
	1561	tmTimerQueuesSanityChecks(pVM, "tmR3TimerCreate");
	1562	#endif
[37527]	1563	TM_UNLOCK_TIMERS(pVM);
[1]	1564
[82333]	1565	/*
	1566	* Register statistics.
	1567	*/
	1568	#ifdef VBOX_WITH_STATISTICS
	1569
	1570	STAMR3RegisterF(pVM, &pTimer->StatTimer, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL,
	1571	tmR3TimerClockName(pTimer), "/TM/Timers/%s", pszDesc);
	1572	STAMR3RegisterF(pVM, &pTimer->StatCritSectEnter, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL,
	1573	"", "/TM/Timers/%s/CritSectEnter", pszDesc);
	1574	STAMR3RegisterF(pVM, &pTimer->StatGet, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_CALLS,
	1575	"", "/TM/Timers/%s/Get", pszDesc);
	1576	STAMR3RegisterF(pVM, &pTimer->StatSetAbsolute, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_CALLS,
	1577	"", "/TM/Timers/%s/SetAbsolute", pszDesc);
	1578	STAMR3RegisterF(pVM, &pTimer->StatSetRelative, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_CALLS,
	1579	"", "/TM/Timers/%s/SetRelative", pszDesc);
	1580	STAMR3RegisterF(pVM, &pTimer->StatStop, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_CALLS,
	1581	"", "/TM/Timers/%s/Stop", pszDesc);
	1582	#endif
	1583
[1]	1584	*ppTimer = pTimer;
	1585	return VINF_SUCCESS;
	1586	}
	1587
	1588
	1589	/**
	1590	* Creates a device timer.
	1591	*
[58170]	1592	* @returns VBox status code.
[58122]	1593	* @param pVM The cross context VM structure.
[1]	1594	* @param pDevIns Device instance.
	1595	* @param enmClock The clock to use on this timer.
	1596	* @param pfnCallback Callback function.
[20087]	1597	* @param pvUser The user argument to the callback.
	1598	* @param fFlags Timer creation flags, see grp_tm_timer_flags.
[1]	1599	* @param pszDesc Pointer to description string which must stay around
	1600	* until the timer is fully destroyed (i.e. a bit after TMTimerDestroy()).
	1601	* @param ppTimer Where to store the timer on success.
	1602	*/
[37324]	1603	VMM_INT_DECL(int) TMR3TimerCreateDevice(PVM pVM, PPDMDEVINS pDevIns, TMCLOCK enmClock,
	1604	PFNTMTIMERDEV pfnCallback, void *pvUser,
	1605	uint32_t fFlags, const char *pszDesc, PPTMTIMERR3 ppTimer)
[1]	1606	{
[20087]	1607	AssertReturn(!(fFlags & ~(TMTIMER_FLAGS_NO_CRIT_SECT)), VERR_INVALID_PARAMETER);
	1608
[1]	1609	/*
	1610	* Allocate and init stuff.
	1611	*/
	1612	int rc = tmr3TimerCreate(pVM, enmClock, pszDesc, ppTimer);
[13816]	1613	if (RT_SUCCESS(rc))
[1]	1614	{
	1615	(*ppTimer)->enmType = TMTIMERTYPE_DEV;
	1616	(*ppTimer)->u.Dev.pfnTimer = pfnCallback;
	1617	(*ppTimer)->u.Dev.pDevIns = pDevIns;
[20087]	1618	(*ppTimer)->pvUser = pvUser;
[37324]	1619	if (!(fFlags & TMTIMER_FLAGS_NO_CRIT_SECT))
[37466]	1620	(*ppTimer)->pCritSect = PDMR3DevGetCritSect(pVM, pDevIns);
[1]	1621	Log(("TM: Created device timer %p clock %d callback %p '%s'\n", (*ppTimer), enmClock, pfnCallback, pszDesc));
	1622	}
	1623
	1624	return rc;
	1625	}
	1626
	1627
[37358]	1628
	1629
[1]	1630	/**
[37358]	1631	* Creates a USB device timer.
	1632	*
[58170]	1633	* @returns VBox status code.
[58122]	1634	* @param pVM The cross context VM structure.
[37358]	1635	* @param pUsbIns The USB device instance.
	1636	* @param enmClock The clock to use on this timer.
	1637	* @param pfnCallback Callback function.
	1638	* @param pvUser The user argument to the callback.
	1639	* @param fFlags Timer creation flags, see grp_tm_timer_flags.
	1640	* @param pszDesc Pointer to description string which must stay around
	1641	* until the timer is fully destroyed (i.e. a bit after TMTimerDestroy()).
	1642	* @param ppTimer Where to store the timer on success.
	1643	*/
	1644	VMM_INT_DECL(int) TMR3TimerCreateUsb(PVM pVM, PPDMUSBINS pUsbIns, TMCLOCK enmClock,
	1645	PFNTMTIMERUSB pfnCallback, void *pvUser,
	1646	uint32_t fFlags, const char *pszDesc, PPTMTIMERR3 ppTimer)
	1647	{
	1648	AssertReturn(!(fFlags & ~(TMTIMER_FLAGS_NO_CRIT_SECT)), VERR_INVALID_PARAMETER);
	1649
	1650	/*
	1651	* Allocate and init stuff.
	1652	*/
	1653	int rc = tmr3TimerCreate(pVM, enmClock, pszDesc, ppTimer);
	1654	if (RT_SUCCESS(rc))
	1655	{
	1656	(*ppTimer)->enmType = TMTIMERTYPE_USB;
	1657	(*ppTimer)->u.Usb.pfnTimer = pfnCallback;
	1658	(*ppTimer)->u.Usb.pUsbIns = pUsbIns;
	1659	(*ppTimer)->pvUser = pvUser;
	1660	//if (!(fFlags & TMTIMER_FLAGS_NO_CRIT_SECT))
	1661	//{
	1662	// if (pDevIns->pCritSectR3)
	1663	// (*ppTimer)->pCritSect = pUsbIns->pCritSectR3;
	1664	// else
	1665	// (*ppTimer)->pCritSect = IOMR3GetCritSect(pVM);
	1666	//}
	1667	Log(("TM: Created USB device timer %p clock %d callback %p '%s'\n", (*ppTimer), enmClock, pfnCallback, pszDesc));
	1668	}
	1669
	1670	return rc;
	1671	}
	1672
	1673
	1674	/**
[1]	1675	* Creates a driver timer.
	1676	*
[58170]	1677	* @returns VBox status code.
[58122]	1678	* @param pVM The cross context VM structure.
[1]	1679	* @param pDrvIns Driver instance.
	1680	* @param enmClock The clock to use on this timer.
	1681	* @param pfnCallback Callback function.
[20096]	1682	* @param pvUser The user argument to the callback.
	1683	* @param fFlags Timer creation flags, see grp_tm_timer_flags.
[1]	1684	* @param pszDesc Pointer to description string which must stay around
	1685	* until the timer is fully destroyed (i.e. a bit after TMTimerDestroy()).
	1686	* @param ppTimer Where to store the timer on success.
	1687	*/
[22808]	1688	VMM_INT_DECL(int) TMR3TimerCreateDriver(PVM pVM, PPDMDRVINS pDrvIns, TMCLOCK enmClock, PFNTMTIMERDRV pfnCallback, void *pvUser,
	1689	uint32_t fFlags, const char *pszDesc, PPTMTIMERR3 ppTimer)
[1]	1690	{
[20096]	1691	AssertReturn(!(fFlags & ~(TMTIMER_FLAGS_NO_CRIT_SECT)), VERR_INVALID_PARAMETER);
	1692
[1]	1693	/*
	1694	* Allocate and init stuff.
	1695	*/
	1696	int rc = tmr3TimerCreate(pVM, enmClock, pszDesc, ppTimer);
[13816]	1697	if (RT_SUCCESS(rc))
[1]	1698	{
	1699	(*ppTimer)->enmType = TMTIMERTYPE_DRV;
	1700	(*ppTimer)->u.Drv.pfnTimer = pfnCallback;
	1701	(*ppTimer)->u.Drv.pDrvIns = pDrvIns;
[20096]	1702	(*ppTimer)->pvUser = pvUser;
[1]	1703	Log(("TM: Created device timer %p clock %d callback %p '%s'\n", (*ppTimer), enmClock, pfnCallback, pszDesc));
	1704	}
	1705
	1706	return rc;
	1707	}
	1708
	1709
	1710	/**
	1711	* Creates an internal timer.
	1712	*
[58170]	1713	* @returns VBox status code.
[58122]	1714	* @param pVM The cross context VM structure.
[1]	1715	* @param enmClock The clock to use on this timer.
	1716	* @param pfnCallback Callback function.
	1717	* @param pvUser User argument to be passed to the callback.
	1718	* @param pszDesc Pointer to description string which must stay around
	1719	* until the timer is fully destroyed (i.e. a bit after TMTimerDestroy()).
	1720	* @param ppTimer Where to store the timer on success.
	1721	*/
[12989]	1722	VMMR3DECL(int) TMR3TimerCreateInternal(PVM pVM, TMCLOCK enmClock, PFNTMTIMERINT pfnCallback, void pvUser, const char pszDesc, PPTMTIMERR3 ppTimer)
[1]	1723	{
	1724	/*
	1725	* Allocate and init stuff.
	1726	*/
	1727	PTMTIMER pTimer;
	1728	int rc = tmr3TimerCreate(pVM, enmClock, pszDesc, &pTimer);
[13816]	1729	if (RT_SUCCESS(rc))
[1]	1730	{
	1731	pTimer->enmType = TMTIMERTYPE_INTERNAL;
	1732	pTimer->u.Internal.pfnTimer = pfnCallback;
[20087]	1733	pTimer->pvUser = pvUser;
[1]	1734	*ppTimer = pTimer;
	1735	Log(("TM: Created internal timer %p clock %d callback %p '%s'\n", pTimer, enmClock, pfnCallback, pszDesc));
	1736	}
	1737
	1738	return rc;
	1739	}
	1740
	1741	/**
	1742	* Creates an external timer.
	1743	*
	1744	* @returns Timer handle on success.
	1745	* @returns NULL on failure.
[58122]	1746	* @param pVM The cross context VM structure.
[1]	1747	* @param enmClock The clock to use on this timer.
	1748	* @param pfnCallback Callback function.
	1749	* @param pvUser User argument.
	1750	* @param pszDesc Pointer to description string which must stay around
	1751	* until the timer is fully destroyed (i.e. a bit after TMTimerDestroy()).
	1752	*/
[12989]	1753	VMMR3DECL(PTMTIMERR3) TMR3TimerCreateExternal(PVM pVM, TMCLOCK enmClock, PFNTMTIMEREXT pfnCallback, void pvUser, const char pszDesc)
[1]	1754	{
	1755	/*
	1756	* Allocate and init stuff.
	1757	*/
[4787]	1758	PTMTIMERR3 pTimer;
[1]	1759	int rc = tmr3TimerCreate(pVM, enmClock, pszDesc, &pTimer);
[13816]	1760	if (RT_SUCCESS(rc))
[1]	1761	{
	1762	pTimer->enmType = TMTIMERTYPE_EXTERNAL;
	1763	pTimer->u.External.pfnTimer = pfnCallback;
[20087]	1764	pTimer->pvUser = pvUser;
[1]	1765	Log(("TM: Created external timer %p clock %d callback %p '%s'\n", pTimer, enmClock, pfnCallback, pszDesc));
	1766	return pTimer;
	1767	}
	1768
	1769	return NULL;
	1770	}
	1771
	1772
	1773	/**
[19538]	1774	* Destroy a timer
	1775	*
[58170]	1776	* @returns VBox status code.
[19538]	1777	* @param pTimer Timer handle as returned by one of the create functions.
	1778	*/
	1779	VMMR3DECL(int) TMR3TimerDestroy(PTMTIMER pTimer)
	1780	{
	1781	/*
	1782	* Be extra careful here.
	1783	*/
	1784	if (!pTimer)
	1785	return VINF_SUCCESS;
	1786	AssertPtr(pTimer);
	1787	Assert((unsigned)pTimer->enmClock < (unsigned)TMCLOCK_MAX);
	1788
	1789	PVM pVM = pTimer->CTX_SUFF(pVM);
	1790	PTMTIMERQUEUE pQueue = &pVM->tm.s.CTX_SUFF(paTimerQueues)[pTimer->enmClock];
	1791	bool fActive = false;
	1792	bool fPending = false;
	1793
[20089]	1794	AssertMsg( !pTimer->pCritSect
	1795	\|\| VMR3GetState(pVM) != VMSTATE_RUNNING
	1796	\|\| PDMCritSectIsOwner(pTimer->pCritSect), ("%s\n", pTimer->pszDesc));
	1797
[19538]	1798	/*
	1799	* The rest of the game happens behind the lock, just
	1800	* like create does. All the work is done here.
	1801	*/
[37527]	1802	TM_LOCK_TIMERS(pVM);
[19538]	1803	for (int cRetries = 1000;; cRetries--)
	1804	{
	1805	/*
	1806	* Change to the DESTROY state.
	1807	*/
[39034]	1808	TMTIMERSTATE const enmState = pTimer->enmState;
[19538]	1809	Log2(("TMTimerDestroy: %p:{.enmState=%s, .pszDesc='%s'} cRetries=%d\n",
	1810	pTimer, tmTimerState(enmState), R3STRING(pTimer->pszDesc), cRetries));
	1811	switch (enmState)
	1812	{
	1813	case TMTIMERSTATE_STOPPED:
[20050]	1814	case TMTIMERSTATE_EXPIRED_DELIVER:
[19538]	1815	break;
	1816
	1817	case TMTIMERSTATE_ACTIVE:
	1818	fActive = true;
	1819	break;
	1820
	1821	case TMTIMERSTATE_PENDING_STOP:
	1822	case TMTIMERSTATE_PENDING_STOP_SCHEDULE:
	1823	case TMTIMERSTATE_PENDING_RESCHEDULE:
	1824	fActive = true;
	1825	fPending = true;
	1826	break;
	1827
	1828	case TMTIMERSTATE_PENDING_SCHEDULE:
	1829	fPending = true;
	1830	break;
	1831
	1832	/*
	1833	* This shouldn't happen as the caller should make sure there are no races.
	1834	*/
[20050]	1835	case TMTIMERSTATE_EXPIRED_GET_UNLINK:
[19538]	1836	case TMTIMERSTATE_PENDING_SCHEDULE_SET_EXPIRE:
	1837	case TMTIMERSTATE_PENDING_RESCHEDULE_SET_EXPIRE:
	1838	AssertMsgFailed(("%p:.enmState=%s %s\n", pTimer, tmTimerState(enmState), pTimer->pszDesc));
[37527]	1839	TM_UNLOCK_TIMERS(pVM);
[19538]	1840	if (!RTThreadYield())
	1841	RTThreadSleep(1);
	1842	AssertMsgReturn(cRetries > 0, ("Failed waiting for stable state. state=%d (%s)\n", pTimer->enmState, pTimer->pszDesc),
	1843	VERR_TM_UNSTABLE_STATE);
[37527]	1844	TM_LOCK_TIMERS(pVM);
[19538]	1845	continue;
	1846
	1847	/*
	1848	* Invalid states.
	1849	*/
	1850	case TMTIMERSTATE_FREE:
	1851	case TMTIMERSTATE_DESTROY:
[37527]	1852	TM_UNLOCK_TIMERS(pVM);
[19538]	1853	AssertLogRelMsgFailedReturn(("pTimer=%p %s\n", pTimer, tmTimerState(enmState)), VERR_TM_INVALID_STATE);
	1854
	1855	default:
	1856	AssertMsgFailed(("Unknown timer state %d (%s)\n", enmState, R3STRING(pTimer->pszDesc)));
[37527]	1857	TM_UNLOCK_TIMERS(pVM);
[19538]	1858	return VERR_TM_UNKNOWN_STATE;
	1859	}
	1860
	1861	/*
	1862	* Try switch to the destroy state.
	1863	* This should always succeed as the caller should make sure there are no race.
	1864	*/
	1865	bool fRc;
	1866	TM_TRY_SET_STATE(pTimer, TMTIMERSTATE_DESTROY, enmState, fRc);
	1867	if (fRc)
	1868	break;
	1869	AssertMsgFailed(("%p:.enmState=%s %s\n", pTimer, tmTimerState(enmState), pTimer->pszDesc));
[37527]	1870	TM_UNLOCK_TIMERS(pVM);
[19538]	1871	AssertMsgReturn(cRetries > 0, ("Failed waiting for stable state. state=%d (%s)\n", pTimer->enmState, pTimer->pszDesc),
	1872	VERR_TM_UNSTABLE_STATE);
[37527]	1873	TM_LOCK_TIMERS(pVM);
[19538]	1874	}
	1875
	1876	/*
	1877	* Unlink from the active list.
	1878	*/
	1879	if (fActive)
	1880	{
	1881	const PTMTIMER pPrev = TMTIMER_GET_PREV(pTimer);
	1882	const PTMTIMER pNext = TMTIMER_GET_NEXT(pTimer);
	1883	if (pPrev)
	1884	TMTIMER_SET_NEXT(pPrev, pNext);
	1885	else
	1886	{
	1887	TMTIMER_SET_HEAD(pQueue, pNext);
	1888	pQueue->u64Expire = pNext ? pNext->u64Expire : INT64_MAX;
	1889	}
	1890	if (pNext)
	1891	TMTIMER_SET_PREV(pNext, pPrev);
	1892	pTimer->offNext = 0;
	1893	pTimer->offPrev = 0;
	1894	}
	1895
	1896	/*
	1897	* Unlink from the schedule list by running it.
	1898	*/
	1899	if (fPending)
	1900	{
	1901	Log3(("TMR3TimerDestroy: tmTimerQueueSchedule\n"));
[20733]	1902	STAM_PROFILE_START(&pVM->tm.s.CTX_SUFF_Z(StatScheduleOne), a);
[19538]	1903	Assert(pQueue->offSchedule);
	1904	tmTimerQueueSchedule(pVM, pQueue);
[44800]	1905	STAM_PROFILE_STOP(&pVM->tm.s.CTX_SUFF_Z(StatScheduleOne), a);
[19538]	1906	}
	1907
	1908	/*
[82333]	1909	* Deregister statistics.
[19538]	1910	*/
[82333]	1911	#ifdef VBOX_WITH_STATISTICS
	1912	char szPrefix[128];
	1913	RTStrPrintf(szPrefix, sizeof(szPrefix), "/TM/Timers/%s", pTimer->pszDesc);
	1914	STAMR3DeregisterByPrefix(pVM->pUVM, szPrefix);
	1915	#endif
	1916
	1917	/*
	1918	* Ready to move the timer from the created list and onto the free list.
	1919	*/
[19538]	1920	Assert(!pTimer->offNext); Assert(!pTimer->offPrev); Assert(!pTimer->offScheduleNext);
	1921
	1922	/* unlink from created list */
	1923	if (pTimer->pBigPrev)
	1924	pTimer->pBigPrev->pBigNext = pTimer->pBigNext;
	1925	else
	1926	pVM->tm.s.pCreated = pTimer->pBigNext;
	1927	if (pTimer->pBigNext)
	1928	pTimer->pBigNext->pBigPrev = pTimer->pBigPrev;
	1929	pTimer->pBigNext = 0;
	1930	pTimer->pBigPrev = 0;
	1931
	1932	/* free */
	1933	Log2(("TM: Inserting %p into the free list ahead of %p!\n", pTimer, pVM->tm.s.pFree));
	1934	TM_SET_STATE(pTimer, TMTIMERSTATE_FREE);
	1935	pTimer->pBigNext = pVM->tm.s.pFree;
	1936	pVM->tm.s.pFree = pTimer;
	1937
	1938	#ifdef VBOX_STRICT
	1939	tmTimerQueuesSanityChecks(pVM, "TMR3TimerDestroy");
	1940	#endif
[37527]	1941	TM_UNLOCK_TIMERS(pVM);
[19538]	1942	return VINF_SUCCESS;
	1943	}
	1944
	1945
	1946	/**
[1]	1947	* Destroy all timers owned by a device.
	1948	*
[58170]	1949	* @returns VBox status code.
[58122]	1950	* @param pVM The cross context VM structure.
[1]	1951	* @param pDevIns Device which timers should be destroyed.
	1952	*/
[22808]	1953	VMM_INT_DECL(int) TMR3TimerDestroyDevice(PVM pVM, PPDMDEVINS pDevIns)
[1]	1954	{
	1955	LogFlow(("TMR3TimerDestroyDevice: pDevIns=%p\n", pDevIns));
	1956	if (!pDevIns)
	1957	return VERR_INVALID_PARAMETER;
	1958
[37527]	1959	TM_LOCK_TIMERS(pVM);
[1]	1960	PTMTIMER pCur = pVM->tm.s.pCreated;
	1961	while (pCur)
	1962	{
	1963	PTMTIMER pDestroy = pCur;
	1964	pCur = pDestroy->pBigNext;
	1965	if ( pDestroy->enmType == TMTIMERTYPE_DEV
	1966	&& pDestroy->u.Dev.pDevIns == pDevIns)
	1967	{
[19507]	1968	int rc = TMR3TimerDestroy(pDestroy);
[1]	1969	AssertRC(rc);
	1970	}
	1971	}
[37527]	1972	TM_UNLOCK_TIMERS(pVM);
[19444]	1973
[1]	1974	LogFlow(("TMR3TimerDestroyDevice: returns VINF_SUCCESS\n"));
	1975	return VINF_SUCCESS;
	1976	}
	1977
	1978
	1979	/**
[37358]	1980	* Destroy all timers owned by a USB device.
	1981	*
[58170]	1982	* @returns VBox status code.
[58122]	1983	* @param pVM The cross context VM structure.
[37358]	1984	* @param pUsbIns USB device which timers should be destroyed.
	1985	*/
	1986	VMM_INT_DECL(int) TMR3TimerDestroyUsb(PVM pVM, PPDMUSBINS pUsbIns)
	1987	{
	1988	LogFlow(("TMR3TimerDestroyUsb: pUsbIns=%p\n", pUsbIns));
	1989	if (!pUsbIns)
	1990	return VERR_INVALID_PARAMETER;
	1991
[37527]	1992	TM_LOCK_TIMERS(pVM);
[37358]	1993	PTMTIMER pCur = pVM->tm.s.pCreated;
	1994	while (pCur)
	1995	{
	1996	PTMTIMER pDestroy = pCur;
	1997	pCur = pDestroy->pBigNext;
	1998	if ( pDestroy->enmType == TMTIMERTYPE_USB
	1999	&& pDestroy->u.Usb.pUsbIns == pUsbIns)
	2000	{
	2001	int rc = TMR3TimerDestroy(pDestroy);
	2002	AssertRC(rc);
	2003	}
	2004	}
[37527]	2005	TM_UNLOCK_TIMERS(pVM);
[37358]	2006
	2007	LogFlow(("TMR3TimerDestroyUsb: returns VINF_SUCCESS\n"));
	2008	return VINF_SUCCESS;
	2009	}
	2010
	2011
	2012	/**
[1]	2013	* Destroy all timers owned by a driver.
	2014	*
[58170]	2015	* @returns VBox status code.
[58122]	2016	* @param pVM The cross context VM structure.
[1]	2017	* @param pDrvIns Driver which timers should be destroyed.
	2018	*/
[22808]	2019	VMM_INT_DECL(int) TMR3TimerDestroyDriver(PVM pVM, PPDMDRVINS pDrvIns)
[1]	2020	{
	2021	LogFlow(("TMR3TimerDestroyDriver: pDrvIns=%p\n", pDrvIns));
	2022	if (!pDrvIns)
	2023	return VERR_INVALID_PARAMETER;
	2024
[37527]	2025	TM_LOCK_TIMERS(pVM);
[1]	2026	PTMTIMER pCur = pVM->tm.s.pCreated;
	2027	while (pCur)
	2028	{
	2029	PTMTIMER pDestroy = pCur;
	2030	pCur = pDestroy->pBigNext;
	2031	if ( pDestroy->enmType == TMTIMERTYPE_DRV
	2032	&& pDestroy->u.Drv.pDrvIns == pDrvIns)
	2033	{
[19507]	2034	int rc = TMR3TimerDestroy(pDestroy);
[1]	2035	AssertRC(rc);
	2036	}
	2037	}
[37527]	2038	TM_UNLOCK_TIMERS(pVM);
[19444]	2039
[1]	2040	LogFlow(("TMR3TimerDestroyDriver: returns VINF_SUCCESS\n"));
	2041	return VINF_SUCCESS;
	2042	}
	2043
	2044
	2045	/**
[13633]	2046	* Internal function for getting the clock time.
	2047	*
	2048	* @returns clock time.
[58122]	2049	* @param pVM The cross context VM structure.
[13633]	2050	* @param enmClock The clock.
	2051	*/
	2052	DECLINLINE(uint64_t) tmClock(PVM pVM, TMCLOCK enmClock)
	2053	{
	2054	switch (enmClock)
	2055	{
	2056	case TMCLOCK_VIRTUAL: return TMVirtualGet(pVM);
	2057	case TMCLOCK_VIRTUAL_SYNC: return TMVirtualSyncGet(pVM);
	2058	case TMCLOCK_REAL: return TMRealGet(pVM);
[80191]	2059	case TMCLOCK_TSC: return TMCpuTickGet(pVM->apCpusR3[0] /* just take VCPU 0 */);
[13633]	2060	default:
	2061	AssertMsgFailed(("enmClock=%d\n", enmClock));
	2062	return ~(uint64_t)0;
	2063	}
	2064	}
	2065
	2066
	2067	/**
[2248]	2068	* Checks if the sync queue has one or more expired timers.
[1]	2069	*
[2248]	2070	* @returns true / false.
[1]	2071	*
[58122]	2072	* @param pVM The cross context VM structure.
[1]	2073	* @param enmClock The queue.
	2074	*/
[2248]	2075	DECLINLINE(bool) tmR3HasExpiredTimer(PVM pVM, TMCLOCK enmClock)
[1]	2076	{
[13633]	2077	const uint64_t u64Expire = pVM->tm.s.CTX_SUFF(paTimerQueues)[enmClock].u64Expire;
[1]	2078	return u64Expire != INT64_MAX && u64Expire <= tmClock(pVM, enmClock);
	2079	}
	2080
	2081
	2082	/**
[2248]	2083	* Checks for expired timers in all the queues.
	2084	*
	2085	* @returns true / false.
[58122]	2086	* @param pVM The cross context VM structure.
[2248]	2087	*/
	2088	DECLINLINE(bool) tmR3AnyExpiredTimers(PVM pVM)
	2089	{
[2611]	2090	/*
[2248]	2091	* Combine the time calculation for the first two since we're not on EMT
	2092	* TMVirtualSyncGet only permits EMT.
	2093	*/
[19660]	2094	uint64_t u64Now = TMVirtualGetNoCheck(pVM);
[13633]	2095	if (pVM->tm.s.CTX_SUFF(paTimerQueues)[TMCLOCK_VIRTUAL].u64Expire <= u64Now)
[2248]	2096	return true;
[2611]	2097	u64Now = pVM->tm.s.fVirtualSyncTicking
	2098	? u64Now - pVM->tm.s.offVirtualSync
[2248]	2099	: pVM->tm.s.u64VirtualSync;
[13633]	2100	if (pVM->tm.s.CTX_SUFF(paTimerQueues)[TMCLOCK_VIRTUAL_SYNC].u64Expire <= u64Now)
[2248]	2101	return true;
	2102
	2103	/*
	2104	* The remaining timers.
	2105	*/
	2106	if (tmR3HasExpiredTimer(pVM, TMCLOCK_REAL))
	2107	return true;
	2108	if (tmR3HasExpiredTimer(pVM, TMCLOCK_TSC))
	2109	return true;
	2110	return false;
	2111	}
	2112
	2113
	2114	/**
[33540]	2115	* Schedule timer callback.
[1]	2116	*
	2117	* @param pTimer Timer handle.
[41800]	2118	* @param pvUser Pointer to the VM.
[2248]	2119	* @thread Timer thread.
[2611]	2120	*
[1]	2121	* @remark We cannot do the scheduling and queues running from a timer handler
	2122	* since it's not executing in EMT, and even if it was it would be async
	2123	* and we wouldn't know the state of the affairs.
	2124	* So, we'll just raise the timer FF and force any REM execution to exit.
	2125	*/
[9444]	2126	static DECLCALLBACK(void) tmR3TimerCallback(PRTTIMER pTimer, void pvUser, uint64_t /iTick*/)
[1]	2127	{
[19660]	2128	PVM pVM = (PVM)pvUser;
[80191]	2129	PVMCPU pVCpuDst = pVM->apCpusR3[pVM->tm.s.idTimerCpu];
[39078]	2130	NOREF(pTimer);
[19660]	2131
[1]	2132	AssertCompile(TMCLOCK_MAX == 4);
[54195]	2133	STAM_COUNTER_INC(&pVM->tm.s.StatTimerCallback);
	2134
[1]	2135	#ifdef DEBUG_Sander /* very annoying, keep it private. */
[46420]	2136	if (VMCPU_FF_IS_SET(pVCpuDst, VMCPU_FF_TIMER))
[1]	2137	Log(("tmR3TimerCallback: timer event still pending!!\n"));
	2138	#endif
[46420]	2139	if ( !VMCPU_FF_IS_SET(pVCpuDst, VMCPU_FF_TIMER)
[19660]	2140	&& ( pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL_SYNC].offSchedule /** @todo FIXME - reconsider offSchedule as a reason for running the timer queues. */
[1]	2141	\|\| pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL].offSchedule
	2142	\|\| pVM->tm.s.paTimerQueuesR3[TMCLOCK_REAL].offSchedule
	2143	\|\| pVM->tm.s.paTimerQueuesR3[TMCLOCK_TSC].offSchedule
[2248]	2144	\|\| tmR3AnyExpiredTimers(pVM)
[1]	2145	)
[46420]	2146	&& !VMCPU_FF_IS_SET(pVCpuDst, VMCPU_FF_TIMER)
[19444]	2147	&& !pVM->tm.s.fRunningQueues
[1]	2148	)
	2149	{
[19660]	2150	Log5(("TM(%u): FF: 0 -> 1\n", __LINE__));
	2151	VMCPU_FF_SET(pVCpuDst, VMCPU_FF_TIMER);
[54195]	2152	VMR3NotifyCpuFFU(pVCpuDst->pUVCpu, VMNOTIFYFF_FLAGS_DONE_REM \| VMNOTIFYFF_FLAGS_POKE);
[1]	2153	STAM_COUNTER_INC(&pVM->tm.s.StatTimerCallbackSetFF);
	2154	}
	2155	}
	2156
	2157
	2158	/**
	2159	* Schedules and runs any pending timers.
	2160	*
	2161	* This is normally called from a forced action handler in EMT.
	2162	*
[58122]	2163	* @param pVM The cross context VM structure.
[19399]	2164	*
	2165	* @thread EMT (actually EMT0, but we fend off the others)
[1]	2166	*/
[12989]	2167	VMMR3DECL(void) TMR3TimerQueuesDo(PVM pVM)
[1]	2168	{
[19444]	2169	/*
[19660]	2170	* Only the dedicated timer EMT should do stuff here.
[19709]	2171	* (fRunningQueues is only used as an indicator.)
[19444]	2172	*/
[22890]	2173	Assert(pVM->tm.s.idTimerCpu < pVM->cCpus);
[80191]	2174	PVMCPU pVCpuDst = pVM->apCpusR3[pVM->tm.s.idTimerCpu];
[19709]	2175	if (VMMGetCpu(pVM) != pVCpuDst)
[19485]	2176	{
[22890]	2177	Assert(pVM->cCpus > 1);
[19444]	2178	return;
[19485]	2179	}
[1]	2180	STAM_PROFILE_START(&pVM->tm.s.StatDoQueues, a);
	2181	Log2(("TMR3TimerQueuesDo:\n"));
[19709]	2182	Assert(!pVM->tm.s.fRunningQueues);
	2183	ASMAtomicWriteBool(&pVM->tm.s.fRunningQueues, true);
[37527]	2184	TM_LOCK_TIMERS(pVM);
[1]	2185
	2186	/*
	2187	* Process the queues.
	2188	*/
	2189	AssertCompile(TMCLOCK_MAX == 4);
	2190
[19709]	2191	/* TMCLOCK_VIRTUAL_SYNC (see also TMR3VirtualSyncFF) */
	2192	STAM_PROFILE_ADV_START(&pVM->tm.s.aStatDoQueues[TMCLOCK_VIRTUAL_SYNC], s1);
[37527]	2193	PDMCritSectEnter(&pVM->tm.s.VirtualSyncLock, VERR_IGNORED);
[19709]	2194	ASMAtomicWriteBool(&pVM->tm.s.fRunningVirtualSyncQueue, true);
	2195	VMCPU_FF_CLEAR(pVCpuDst, VMCPU_FF_TIMER); /* Clear the FF once we started working for real. */
	2196
[37517]	2197	Assert(!pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL_SYNC].offSchedule);
[2248]	2198	tmR3TimerQueueRunVirtualSync(pVM);
[19660]	2199	if (pVM->tm.s.fVirtualSyncTicking) /** @todo move into tmR3TimerQueueRunVirtualSync - FIXME */
	2200	VM_FF_CLEAR(pVM, VM_FF_TM_VIRTUAL_SYNC);
[1]	2201
[19709]	2202	ASMAtomicWriteBool(&pVM->tm.s.fRunningVirtualSyncQueue, false);
[37527]	2203	PDMCritSectLeave(&pVM->tm.s.VirtualSyncLock);
[19709]	2204	STAM_PROFILE_ADV_STOP(&pVM->tm.s.aStatDoQueues[TMCLOCK_VIRTUAL_SYNC], s1);
	2205
[2248]	2206	/* TMCLOCK_VIRTUAL */
[19709]	2207	STAM_PROFILE_ADV_START(&pVM->tm.s.aStatDoQueues[TMCLOCK_VIRTUAL], s2);
	2208	if (pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL].offSchedule)
	2209	tmTimerQueueSchedule(pVM, &pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL]);
[2248]	2210	tmR3TimerQueueRun(pVM, &pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL]);
[19709]	2211	STAM_PROFILE_ADV_STOP(&pVM->tm.s.aStatDoQueues[TMCLOCK_VIRTUAL], s2);
[1]	2212
[2248]	2213	/* TMCLOCK_TSC */
[19660]	2214	Assert(!pVM->tm.s.paTimerQueuesR3[TMCLOCK_TSC].offActive); /* not used */
[1]	2215
[2248]	2216	/* TMCLOCK_REAL */
[19709]	2217	STAM_PROFILE_ADV_START(&pVM->tm.s.aStatDoQueues[TMCLOCK_REAL], s3);
	2218	if (pVM->tm.s.paTimerQueuesR3[TMCLOCK_REAL].offSchedule)
	2219	tmTimerQueueSchedule(pVM, &pVM->tm.s.paTimerQueuesR3[TMCLOCK_REAL]);
[2248]	2220	tmR3TimerQueueRun(pVM, &pVM->tm.s.paTimerQueuesR3[TMCLOCK_REAL]);
[19709]	2221	STAM_PROFILE_ADV_STOP(&pVM->tm.s.aStatDoQueues[TMCLOCK_REAL], s3);
[1]	2222
	2223	#ifdef VBOX_STRICT
[33540]	2224	/* check that we didn't screw up. */
[1]	2225	tmTimerQueuesSanityChecks(pVM, "TMR3TimerQueuesDo");
	2226	#endif
	2227
[19709]	2228	/* done */
[1]	2229	Log2(("TMR3TimerQueuesDo: returns void\n"));
[19709]	2230	ASMAtomicWriteBool(&pVM->tm.s.fRunningQueues, false);
[37527]	2231	TM_UNLOCK_TIMERS(pVM);
[1]	2232	STAM_PROFILE_STOP(&pVM->tm.s.StatDoQueues, a);
	2233	}
	2234
[20374]	2235	//RT_C_DECLS_BEGIN
[19660]	2236	//int iomLock(PVM pVM);
	2237	//void iomUnlock(PVM pVM);
[20374]	2238	//RT_C_DECLS_END
[1]	2239
[19660]	2240
[1]	2241	/**
	2242	* Schedules and runs any pending times in the specified queue.
	2243	*
	2244	* This is normally called from a forced action handler in EMT.
	2245	*
[58122]	2246	* @param pVM The cross context VM structure.
[1]	2247	* @param pQueue The queue to run.
	2248	*/
	2249	static void tmR3TimerQueueRun(PVM pVM, PTMTIMERQUEUE pQueue)
	2250	{
	2251	VM_ASSERT_EMT(pVM);
	2252
	2253	/*
	2254	* Run timers.
	2255	*
	2256	* We check the clock once and run all timers which are ACTIVE
	2257	* and have an expire time less or equal to the time we read.
	2258	*
	2259	* N.B. A generic unlink must be applied since other threads
	2260	* are allowed to mess with any active timer at any time.
	2261	* However, we only allow EMT to handle EXPIRED_PENDING
	2262	* timers, thus enabling the timer handler function to
	2263	* arm the timer again.
	2264	*/
	2265	PTMTIMER pNext = TMTIMER_GET_HEAD(pQueue);
	2266	if (!pNext)
	2267	return;
[2248]	2268	const uint64_t u64Now = tmClock(pVM, pQueue->enmClock);
[1]	2269	while (pNext && pNext->u64Expire <= u64Now)
	2270	{
[20087]	2271	PTMTIMER pTimer = pNext;
[1]	2272	pNext = TMTIMER_GET_NEXT(pTimer);
[20087]	2273	PPDMCRITSECT pCritSect = pTimer->pCritSect;
	2274	if (pCritSect)
[82333]	2275	{
	2276	STAM_PROFILE_START(&pTimer->StatCritSectEnter, Locking);
[39402]	2277	PDMCritSectEnter(pCritSect, VERR_IGNORED);
[82333]	2278	STAM_PROFILE_STOP(&pTimer->StatCritSectEnter, Locking);
	2279	}
[19497]	2280	Log2(("tmR3TimerQueueRun: %p:{.enmState=%s, .enmClock=%d, .enmType=%d, u64Expire=%llx (now=%llx) .pszDesc=%s}\n",
[1]	2281	pTimer, tmTimerState(pTimer->enmState), pTimer->enmClock, pTimer->enmType, pTimer->u64Expire, u64Now, pTimer->pszDesc));
	2282	bool fRc;
[20050]	2283	TM_TRY_SET_STATE(pTimer, TMTIMERSTATE_EXPIRED_GET_UNLINK, TMTIMERSTATE_ACTIVE, fRc);
[1]	2284	if (fRc)
	2285	{
	2286	Assert(!pTimer->offScheduleNext); /* this can trigger falsely */
	2287
	2288	/* unlink */
	2289	const PTMTIMER pPrev = TMTIMER_GET_PREV(pTimer);
	2290	if (pPrev)
	2291	TMTIMER_SET_NEXT(pPrev, pNext);
	2292	else
	2293	{
	2294	TMTIMER_SET_HEAD(pQueue, pNext);
	2295	pQueue->u64Expire = pNext ? pNext->u64Expire : INT64_MAX;
	2296	}
	2297	if (pNext)
	2298	TMTIMER_SET_PREV(pNext, pPrev);
	2299	pTimer->offNext = 0;
	2300	pTimer->offPrev = 0;
	2301
	2302	/* fire */
[20050]	2303	TM_SET_STATE(pTimer, TMTIMERSTATE_EXPIRED_DELIVER);
[82333]	2304	STAM_PROFILE_START(&pTimer->StatTimer, PrfTimer);
[1]	2305	switch (pTimer->enmType)
	2306	{
[20087]	2307	case TMTIMERTYPE_DEV: pTimer->u.Dev.pfnTimer(pTimer->u.Dev.pDevIns, pTimer, pTimer->pvUser); break;
[37358]	2308	case TMTIMERTYPE_USB: pTimer->u.Usb.pfnTimer(pTimer->u.Usb.pUsbIns, pTimer, pTimer->pvUser); break;
[20096]	2309	case TMTIMERTYPE_DRV: pTimer->u.Drv.pfnTimer(pTimer->u.Drv.pDrvIns, pTimer, pTimer->pvUser); break;
[20087]	2310	case TMTIMERTYPE_INTERNAL: pTimer->u.Internal.pfnTimer(pVM, pTimer, pTimer->pvUser); break;
	2311	case TMTIMERTYPE_EXTERNAL: pTimer->u.External.pfnTimer(pTimer->pvUser); break;
[1]	2312	default:
	2313	AssertMsgFailed(("Invalid timer type %d (%s)\n", pTimer->enmType, pTimer->pszDesc));
	2314	break;
	2315	}
[82333]	2316	STAM_PROFILE_STOP(&pTimer->StatTimer, PrfTimer);
[1]	2317
	2318	/* change the state if it wasn't changed already in the handler. */
[20050]	2319	TM_TRY_SET_STATE(pTimer, TMTIMERSTATE_STOPPED, TMTIMERSTATE_EXPIRED_DELIVER, fRc);
[1]	2320	Log2(("tmR3TimerQueueRun: new state %s\n", tmTimerState(pTimer->enmState)));
	2321	}
[20087]	2322	if (pCritSect)
	2323	PDMCritSectLeave(pCritSect);
[1]	2324	} /* run loop */
	2325	}
	2326
	2327
	2328	/**
[2611]	2329	* Schedules and runs any pending times in the timer queue for the
[2248]	2330	* synchronous virtual clock.
[2611]	2331	*
[2248]	2332	* This scheduling is a bit different from the other queues as it need
[2611]	2333	* to implement the special requirements of the timer synchronous virtual
[33540]	2334	* clock, thus this 2nd queue run function.
[2248]	2335	*
[58122]	2336	* @param pVM The cross context VM structure.
[19803]	2337	*
[37517]	2338	* @remarks The caller must the Virtual Sync lock. Owning the TM lock is no
	2339	* longer important.
[2248]	2340	*/
	2341	static void tmR3TimerQueueRunVirtualSync(PVM pVM)
	2342	{
	2343	PTMTIMERQUEUE const pQueue = &pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL_SYNC];
	2344	VM_ASSERT_EMT(pVM);
[37517]	2345	Assert(PDMCritSectIsOwner(&pVM->tm.s.VirtualSyncLock));
[2248]	2346
	2347	/*
	2348	* Any timers?
	2349	*/
	2350	PTMTIMER pNext = TMTIMER_GET_HEAD(pQueue);
	2351	if (RT_UNLIKELY(!pNext))
	2352	{
[19324]	2353	Assert(pVM->tm.s.fVirtualSyncTicking \|\| !pVM->tm.s.cVirtualTicking);
[2248]	2354	return;
	2355	}
	2356	STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncRun);
	2357
	2358	/*
	2359	* Calculate the time frame for which we will dispatch timers.
	2360	*
	2361	* We use a time frame ranging from the current sync time (which is most likely the
[2283]	2362	* same as the head timer) and some configurable period (100000ns) up towards the
[2248]	2363	* current virtual time. This period might also need to be restricted by the catch-up
	2364	* rate so frequent calls to this function won't accelerate the time too much, however
[33540]	2365	* this will be implemented at a later point if necessary.
[2248]	2366	*
[2611]	2367	* Without this frame we would 1) having to run timers much more frequently
[2248]	2368	* and 2) lag behind at a steady rate.
	2369	*/
[19803]	2370	const uint64_t u64VirtualNow = TMVirtualGetNoCheck(pVM);
	2371	uint64_t const offSyncGivenUp = pVM->tm.s.offVirtualSyncGivenUp;
	2372	uint64_t u64Now;
[2248]	2373	if (!pVM->tm.s.fVirtualSyncTicking)
	2374	{
	2375	STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncRunStoppedAlready);
	2376	u64Now = pVM->tm.s.u64VirtualSync;
[2283]	2377	Assert(u64Now <= pNext->u64Expire);
[2248]	2378	}
	2379	else
	2380	{
[19803]	2381	/* Calc 'now'. */
[20050]	2382	bool fStopCatchup = false;
	2383	bool fUpdateStuff = false;
	2384	uint64_t off = pVM->tm.s.offVirtualSync;
[2248]	2385	if (pVM->tm.s.fVirtualSyncCatchUp)
	2386	{
[2908]	2387	uint64_t u64Delta = u64VirtualNow - pVM->tm.s.u64VirtualSyncCatchUpPrev;
[2248]	2388	if (RT_LIKELY(!(u64Delta >> 32)))
	2389	{
[2908]	2390	uint64_t u64Sub = ASMMultU64ByU32DivByU32(u64Delta, pVM->tm.s.u32VirtualSyncCatchUpPercentage, 100);
[19803]	2391	if (off > u64Sub + offSyncGivenUp)
[2283]	2392	{
	2393	off -= u64Sub;
[20050]	2394	Log4(("TM: %'RU64/-%'8RU64: sub %'RU64 [tmR3TimerQueueRunVirtualSync]\n", u64VirtualNow - off, off - offSyncGivenUp, u64Sub));
[2283]	2395	}
[2248]	2396	else
[2283]	2397	{
	2398	STAM_PROFILE_ADV_STOP(&pVM->tm.s.StatVirtualSyncCatchup, c);
[19803]	2399	fStopCatchup = true;
	2400	off = offSyncGivenUp;
[2283]	2401	}
[25214]	2402	fUpdateStuff = true;
[2248]	2403	}
	2404	}
	2405	u64Now = u64VirtualNow - off;
	2406
[37517]	2407	/* Adjust against last returned time. */
	2408	uint64_t u64Last = ASMAtomicUoReadU64(&pVM->tm.s.u64VirtualSync);
	2409	if (u64Last > u64Now)
	2410	{
	2411	u64Now = u64Last + 1;
	2412	STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncGetAdjLast);
	2413	}
	2414
[2283]	2415	/* Check if stopped by expired timer. */
[39034]	2416	uint64_t const u64Expire = pNext->u64Expire;
	2417	if (u64Now >= u64Expire)
[2248]	2418	{
	2419	STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncRunStop);
[39034]	2420	u64Now = u64Expire;
[19803]	2421	ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSync, u64Now);
	2422	ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncTicking, false);
[20050]	2423	Log4(("TM: %'RU64/-%'8RU64: exp tmr [tmR3TimerQueueRunVirtualSync]\n", u64Now, u64VirtualNow - u64Now - offSyncGivenUp));
[2248]	2424	}
[37517]	2425	else
[19803]	2426	{
[37517]	2427	ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSync, u64Now);
	2428	if (fUpdateStuff)
[20050]	2429	{
[37517]	2430	ASMAtomicWriteU64(&pVM->tm.s.offVirtualSync, off);
	2431	ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSyncCatchUpPrev, u64VirtualNow);
	2432	ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSync, u64Now);
	2433	if (fStopCatchup)
	2434	{
	2435	ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, false);
	2436	Log4(("TM: %'RU64/0: caught up [tmR3TimerQueueRunVirtualSync]\n", u64VirtualNow));
	2437	}
[20050]	2438	}
[19803]	2439	}
[2248]	2440	}
	2441
[2283]	2442	/* calc end of frame. */
	2443	uint64_t u64Max = u64Now + pVM->tm.s.u32VirtualSyncScheduleSlack;
[19803]	2444	if (u64Max > u64VirtualNow - offSyncGivenUp)
	2445	u64Max = u64VirtualNow - offSyncGivenUp;
[2283]	2446
	2447	/* assert sanity */
[19803]	2448	Assert(u64Now <= u64VirtualNow - offSyncGivenUp);
	2449	Assert(u64Max <= u64VirtualNow - offSyncGivenUp);
[2283]	2450	Assert(u64Now <= u64Max);
[19803]	2451	Assert(offSyncGivenUp == pVM->tm.s.offVirtualSyncGivenUp);
[2283]	2452
[2248]	2453	/*
	2454	* Process the expired timers moving the clock along as we progress.
	2455	*/
[2283]	2456	#ifdef VBOX_STRICT
	2457	uint64_t u64Prev = u64Now; NOREF(u64Prev);
	2458	#endif
[2248]	2459	while (pNext && pNext->u64Expire <= u64Max)
	2460	{
[37517]	2461	/* Advance */
	2462	PTMTIMER pTimer = pNext;
[2248]	2463	pNext = TMTIMER_GET_NEXT(pTimer);
[37517]	2464
	2465	/* Take the associated lock. */
	2466	PPDMCRITSECT pCritSect = pTimer->pCritSect;
[20091]	2467	if (pCritSect)
[82333]	2468	{
	2469	STAM_PROFILE_START(&pTimer->StatCritSectEnter, Locking);
[39402]	2470	PDMCritSectEnter(pCritSect, VERR_IGNORED);
[82333]	2471	STAM_PROFILE_STOP(&pTimer->StatCritSectEnter, Locking);
	2472	}
[37517]	2473
[19497]	2474	Log2(("tmR3TimerQueueRun: %p:{.enmState=%s, .enmClock=%d, .enmType=%d, u64Expire=%llx (now=%llx) .pszDesc=%s}\n",
[2248]	2475	pTimer, tmTimerState(pTimer->enmState), pTimer->enmClock, pTimer->enmType, pTimer->u64Expire, u64Now, pTimer->pszDesc));
	2476
[37517]	2477	/* Advance the clock - don't permit timers to be out of order or armed
	2478	in the 'past'. */
[2283]	2479	#ifdef VBOX_STRICT
[37517]	2480	AssertMsg(pTimer->u64Expire >= u64Prev, ("%'RU64 < %'RU64 %s\n", pTimer->u64Expire, u64Prev, pTimer->pszDesc));
	2481	u64Prev = pTimer->u64Expire;
[2283]	2482	#endif
[37517]	2483	ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSync, pTimer->u64Expire);
	2484	ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncTicking, false);
[2248]	2485
[37517]	2486	/* Unlink it, change the state and do the callout. */
	2487	tmTimerQueueUnlinkActive(pQueue, pTimer);
	2488	TM_SET_STATE(pTimer, TMTIMERSTATE_EXPIRED_DELIVER);
[82333]	2489	STAM_PROFILE_START(&pTimer->StatTimer, PrfTimer);
[37517]	2490	switch (pTimer->enmType)
	2491	{
	2492	case TMTIMERTYPE_DEV: pTimer->u.Dev.pfnTimer(pTimer->u.Dev.pDevIns, pTimer, pTimer->pvUser); break;
	2493	case TMTIMERTYPE_USB: pTimer->u.Usb.pfnTimer(pTimer->u.Usb.pUsbIns, pTimer, pTimer->pvUser); break;
	2494	case TMTIMERTYPE_DRV: pTimer->u.Drv.pfnTimer(pTimer->u.Drv.pDrvIns, pTimer, pTimer->pvUser); break;
	2495	case TMTIMERTYPE_INTERNAL: pTimer->u.Internal.pfnTimer(pVM, pTimer, pTimer->pvUser); break;
	2496	case TMTIMERTYPE_EXTERNAL: pTimer->u.External.pfnTimer(pTimer->pvUser); break;
	2497	default:
	2498	AssertMsgFailed(("Invalid timer type %d (%s)\n", pTimer->enmType, pTimer->pszDesc));
	2499	break;
	2500	}
[82333]	2501	STAM_PROFILE_STOP(&pTimer->StatTimer, PrfTimer);
[2248]	2502
[37517]	2503	/* Change the state if it wasn't changed already in the handler.
	2504	Reset the Hz hint too since this is the same as TMTimerStop. */
	2505	bool fRc;
	2506	TM_TRY_SET_STATE(pTimer, TMTIMERSTATE_STOPPED, TMTIMERSTATE_EXPIRED_DELIVER, fRc);
	2507	if (fRc && pTimer->uHzHint)
	2508	{
	2509	if (pTimer->uHzHint >= pVM->tm.s.uMaxHzHint)
	2510	ASMAtomicWriteBool(&pVM->tm.s.fHzHintNeedsUpdating, true);
	2511	pTimer->uHzHint = 0;
[2248]	2512	}
[37517]	2513	Log2(("tmR3TimerQueueRun: new state %s\n", tmTimerState(pTimer->enmState)));
	2514
	2515	/* Leave the associated lock. */
[20091]	2516	if (pCritSect)
	2517	PDMCritSectLeave(pCritSect);
[2248]	2518	} /* run loop */
	2519
[37517]	2520
[2248]	2521	/*
[2611]	2522	* Restart the clock if it was stopped to serve any timers,
[2248]	2523	* and start/adjust catch-up if necessary.
	2524	*/
	2525	if ( !pVM->tm.s.fVirtualSyncTicking
[19324]	2526	&& pVM->tm.s.cVirtualTicking)
[2248]	2527	{
	2528	STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncRunRestart);
	2529
[2283]	2530	/* calc the slack we've handed out. */
[19660]	2531	const uint64_t u64VirtualNow2 = TMVirtualGetNoCheck(pVM);
[2248]	2532	Assert(u64VirtualNow2 >= u64VirtualNow);
[37415]	2533	AssertMsg(pVM->tm.s.u64VirtualSync >= u64Now, ("%'RU64 < %'RU64\n", pVM->tm.s.u64VirtualSync, u64Now));
[2248]	2534	const uint64_t offSlack = pVM->tm.s.u64VirtualSync - u64Now;
[2283]	2535	STAM_STATS({
	2536	if (offSlack)
	2537	{
[2248]	2538	PSTAMPROFILE p = &pVM->tm.s.StatVirtualSyncRunSlack;
[2283]	2539	p->cPeriods++;
[2248]	2540	p->cTicks += offSlack;
	2541	if (p->cTicksMax < offSlack) p->cTicksMax = offSlack;
[2283]	2542	if (p->cTicksMin > offSlack) p->cTicksMin = offSlack;
	2543	}
[2248]	2544	});
	2545
	2546	/* Let the time run a little bit while we were busy running timers(?). */
	2547	uint64_t u64Elapsed;
[19803]	2548	#define MAX_ELAPSED 30000U /* ns */
[2248]	2549	if (offSlack > MAX_ELAPSED)
	2550	u64Elapsed = 0;
	2551	else
	2552	{
	2553	u64Elapsed = u64VirtualNow2 - u64VirtualNow;
	2554	if (u64Elapsed > MAX_ELAPSED)
	2555	u64Elapsed = MAX_ELAPSED;
	2556	u64Elapsed = u64Elapsed > offSlack ? u64Elapsed - offSlack : 0;
	2557	}
	2558	#undef MAX_ELAPSED
	2559
	2560	/* Calc the current offset. */
	2561	uint64_t offNew = u64VirtualNow2 - pVM->tm.s.u64VirtualSync - u64Elapsed;
[2283]	2562	Assert(!(offNew & RT_BIT_64(63)));
	2563	uint64_t offLag = offNew - pVM->tm.s.offVirtualSyncGivenUp;
	2564	Assert(!(offLag & RT_BIT_64(63)));
[2248]	2565
[2611]	2566	/*
	2567	* Deal with starting, adjusting and stopping catchup.
[2283]	2568	*/
[2248]	2569	if (pVM->tm.s.fVirtualSyncCatchUp)
	2570	{
[2283]	2571	if (offLag <= pVM->tm.s.u64VirtualSyncCatchUpStopThreshold)
[2248]	2572	{
	2573	/* stop */
	2574	STAM_PROFILE_ADV_STOP(&pVM->tm.s.StatVirtualSyncCatchup, c);
[19803]	2575	ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, false);
[20050]	2576	Log4(("TM: %'RU64/-%'8RU64: caught up [pt]\n", u64VirtualNow2 - offNew, offLag));
[2248]	2577	}
[2283]	2578	else if (offLag <= pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold)
[2248]	2579	{
	2580	/* adjust */
	2581	unsigned i = 0;
	2582	while ( i + 1 < RT_ELEMENTS(pVM->tm.s.aVirtualSyncCatchUpPeriods)
[2283]	2583	&& offLag >= pVM->tm.s.aVirtualSyncCatchUpPeriods[i + 1].u64Start)
[2248]	2584	i++;
	2585	if (pVM->tm.s.u32VirtualSyncCatchUpPercentage < pVM->tm.s.aVirtualSyncCatchUpPeriods[i].u32Percentage)
	2586	{
	2587	STAM_COUNTER_INC(&pVM->tm.s.aStatVirtualSyncCatchupAdjust[i]);
[19803]	2588	ASMAtomicWriteU32(&pVM->tm.s.u32VirtualSyncCatchUpPercentage, pVM->tm.s.aVirtualSyncCatchUpPeriods[i].u32Percentage);
[20050]	2589	Log4(("TM: %'RU64/%'8RU64: adj %u%%\n", u64VirtualNow2 - offNew, offLag, pVM->tm.s.u32VirtualSyncCatchUpPercentage));
[2248]	2590	}
	2591	pVM->tm.s.u64VirtualSyncCatchUpPrev = u64VirtualNow2;
	2592	}
	2593	else
	2594	{
	2595	/* give up */
	2596	STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncGiveUp);
[2283]	2597	STAM_PROFILE_ADV_STOP(&pVM->tm.s.StatVirtualSyncCatchup, c);
[19803]	2598	ASMAtomicWriteU64((uint64_t volatile *)&pVM->tm.s.offVirtualSyncGivenUp, offNew);
	2599	ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, false);
[20050]	2600	Log4(("TM: %'RU64/%'8RU64: give up %u%%\n", u64VirtualNow2 - offNew, offLag, pVM->tm.s.u32VirtualSyncCatchUpPercentage));
	2601	LogRel(("TM: Giving up catch-up attempt at a %'RU64 ns lag; new total: %'RU64 ns\n", offLag, offNew));
[2248]	2602	}
	2603	}
[2283]	2604	else if (offLag >= pVM->tm.s.aVirtualSyncCatchUpPeriods[0].u64Start)
[2248]	2605	{
[2283]	2606	if (offLag <= pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold)
[2248]	2607	{
	2608	/* start */
	2609	STAM_PROFILE_ADV_START(&pVM->tm.s.StatVirtualSyncCatchup, c);
	2610	unsigned i = 0;
	2611	while ( i + 1 < RT_ELEMENTS(pVM->tm.s.aVirtualSyncCatchUpPeriods)
[2283]	2612	&& offLag >= pVM->tm.s.aVirtualSyncCatchUpPeriods[i + 1].u64Start)
[2248]	2613	i++;
	2614	STAM_COUNTER_INC(&pVM->tm.s.aStatVirtualSyncCatchupInitial[i]);
[19803]	2615	ASMAtomicWriteU32(&pVM->tm.s.u32VirtualSyncCatchUpPercentage, pVM->tm.s.aVirtualSyncCatchUpPeriods[i].u32Percentage);
	2616	ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, true);
[20050]	2617	Log4(("TM: %'RU64/%'8RU64: catch-up %u%%\n", u64VirtualNow2 - offNew, offLag, pVM->tm.s.u32VirtualSyncCatchUpPercentage));
[2248]	2618	}
	2619	else
	2620	{
[2744]	2621	/* don't bother */
[2248]	2622	STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncGiveUpBeforeStarting);
[19803]	2623	ASMAtomicWriteU64((uint64_t volatile *)&pVM->tm.s.offVirtualSyncGivenUp, offNew);
[20050]	2624	Log4(("TM: %'RU64/%'8RU64: give up\n", u64VirtualNow2 - offNew, offLag));
	2625	LogRel(("TM: Not bothering to attempt catching up a %'RU64 ns lag; new total: %'RU64\n", offLag, offNew));
[2248]	2626	}
	2627	}
	2628
[2611]	2629	/*
	2630	* Update the offset and restart the clock.
[2283]	2631	*/
[2744]	2632	Assert(!(offNew & RT_BIT_64(63)));
[19803]	2633	ASMAtomicWriteU64(&pVM->tm.s.offVirtualSync, offNew);
	2634	ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncTicking, true);
[2248]	2635	}
	2636	}
	2637
	2638
	2639	/**
[19709]	2640	* Deals with stopped Virtual Sync clock.
	2641	*
	2642	* This is called by the forced action flag handling code in EM when it
	2643	* encounters the VM_FF_TM_VIRTUAL_SYNC flag. It is called by all VCPUs and they
	2644	* will block on the VirtualSyncLock until the pending timers has been executed
	2645	* and the clock restarted.
	2646	*
[58123]	2647	* @param pVM The cross context VM structure.
	2648	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
[19709]	2649	*
	2650	* @thread EMTs
	2651	*/
[37452]	2652	VMMR3_INT_DECL(void) TMR3VirtualSyncFF(PVM pVM, PVMCPU pVCpu)
[19709]	2653	{
	2654	Log2(("TMR3VirtualSyncFF:\n"));
	2655
	2656	/*
	2657	* The EMT doing the timers is diverted to them.
	2658	*/
	2659	if (pVCpu->idCpu == pVM->tm.s.idTimerCpu)
	2660	TMR3TimerQueuesDo(pVM);
	2661	/*
	2662	* The other EMTs will block on the virtual sync lock and the first owner
	2663	* will run the queue and thus restarting the clock.
	2664	*
	2665	* Note! This is very suboptimal code wrt to resuming execution when there
	2666	* are more than two Virtual CPUs, since they will all have to enter
	2667	* the critical section one by one. But it's a very simple solution
	2668	* which will have to do the job for now.
	2669	*/
	2670	else
	2671	{
	2672	STAM_PROFILE_START(&pVM->tm.s.StatVirtualSyncFF, a);
[37527]	2673	PDMCritSectEnter(&pVM->tm.s.VirtualSyncLock, VERR_IGNORED);
[19709]	2674	if (pVM->tm.s.fVirtualSyncTicking)
	2675	{
	2676	STAM_PROFILE_STOP(&pVM->tm.s.StatVirtualSyncFF, a); /* before the unlock! */
[37527]	2677	PDMCritSectLeave(&pVM->tm.s.VirtualSyncLock);
[19709]	2678	Log2(("TMR3VirtualSyncFF: ticking\n"));
	2679	}
	2680	else
	2681	{
[37527]	2682	PDMCritSectLeave(&pVM->tm.s.VirtualSyncLock);
[19709]	2683
	2684	/* try run it. */
[37527]	2685	TM_LOCK_TIMERS(pVM);
	2686	PDMCritSectEnter(&pVM->tm.s.VirtualSyncLock, VERR_IGNORED);
[19709]	2687	if (pVM->tm.s.fVirtualSyncTicking)
	2688	Log2(("TMR3VirtualSyncFF: ticking (2)\n"));
	2689	else
	2690	{
	2691	ASMAtomicWriteBool(&pVM->tm.s.fRunningVirtualSyncQueue, true);
	2692	Log2(("TMR3VirtualSyncFF: running queue\n"));
	2693
[37517]	2694	Assert(!pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL_SYNC].offSchedule);
[19709]	2695	tmR3TimerQueueRunVirtualSync(pVM);
	2696	if (pVM->tm.s.fVirtualSyncTicking) /** @todo move into tmR3TimerQueueRunVirtualSync - FIXME */
	2697	VM_FF_CLEAR(pVM, VM_FF_TM_VIRTUAL_SYNC);
	2698
	2699	ASMAtomicWriteBool(&pVM->tm.s.fRunningVirtualSyncQueue, false);
	2700	}
	2701	STAM_PROFILE_STOP(&pVM->tm.s.StatVirtualSyncFF, a); /* before the unlock! */
[37527]	2702	PDMCritSectLeave(&pVM->tm.s.VirtualSyncLock);
	2703	TM_UNLOCK_TIMERS(pVM);
[19709]	2704	}
	2705	}
	2706	}
	2707
	2708
[20121]	2709	/** @name Saved state values
	2710	* @{ */
	2711	#define TMTIMERSTATE_SAVED_PENDING_STOP 4
	2712	#define TMTIMERSTATE_SAVED_PENDING_SCHEDULE 7
	2713	/** @} */
	2714
	2715
[19709]	2716	/**
[1]	2717	* Saves the state of a timer to a saved state.
	2718	*
[58170]	2719	* @returns VBox status code.
[1]	2720	* @param pTimer Timer to save.
	2721	* @param pSSM Save State Manager handle.
	2722	*/
[12989]	2723	VMMR3DECL(int) TMR3TimerSave(PTMTIMERR3 pTimer, PSSMHANDLE pSSM)
[1]	2724	{
[19497]	2725	LogFlow(("TMR3TimerSave: %p:{enmState=%s, .pszDesc={%s}} pSSM=%p\n", pTimer, tmTimerState(pTimer->enmState), pTimer->pszDesc, pSSM));
[1]	2726	switch (pTimer->enmState)
	2727	{
	2728	case TMTIMERSTATE_STOPPED:
	2729	case TMTIMERSTATE_PENDING_STOP:
	2730	case TMTIMERSTATE_PENDING_STOP_SCHEDULE:
[20121]	2731	return SSMR3PutU8(pSSM, TMTIMERSTATE_SAVED_PENDING_STOP);
[1]	2732
	2733	case TMTIMERSTATE_PENDING_SCHEDULE_SET_EXPIRE:
	2734	case TMTIMERSTATE_PENDING_RESCHEDULE_SET_EXPIRE:
	2735	AssertMsgFailed(("u64Expire is being updated! (%s)\n", pTimer->pszDesc));
	2736	if (!RTThreadYield())
	2737	RTThreadSleep(1);
[69046]	2738	RT_FALL_THRU();
[1]	2739	case TMTIMERSTATE_ACTIVE:
	2740	case TMTIMERSTATE_PENDING_SCHEDULE:
	2741	case TMTIMERSTATE_PENDING_RESCHEDULE:
[20121]	2742	SSMR3PutU8(pSSM, TMTIMERSTATE_SAVED_PENDING_SCHEDULE);
[1]	2743	return SSMR3PutU64(pSSM, pTimer->u64Expire);
	2744
[20050]	2745	case TMTIMERSTATE_EXPIRED_GET_UNLINK:
	2746	case TMTIMERSTATE_EXPIRED_DELIVER:
[19537]	2747	case TMTIMERSTATE_DESTROY:
[1]	2748	case TMTIMERSTATE_FREE:
	2749	AssertMsgFailed(("Invalid timer state %d %s (%s)\n", pTimer->enmState, tmTimerState(pTimer->enmState), pTimer->pszDesc));
	2750	return SSMR3HandleSetStatus(pSSM, VERR_TM_INVALID_STATE);
	2751	}
	2752
	2753	AssertMsgFailed(("Unknown timer state %d (%s)\n", pTimer->enmState, pTimer->pszDesc));
	2754	return SSMR3HandleSetStatus(pSSM, VERR_TM_UNKNOWN_STATE);
	2755	}
	2756
	2757
	2758	/**
	2759	* Loads the state of a timer from a saved state.
	2760	*
[58170]	2761	* @returns VBox status code.
[1]	2762	* @param pTimer Timer to restore.
	2763	* @param pSSM Save State Manager handle.
	2764	*/
[12989]	2765	VMMR3DECL(int) TMR3TimerLoad(PTMTIMERR3 pTimer, PSSMHANDLE pSSM)
[1]	2766	{
	2767	Assert(pTimer); Assert(pSSM); VM_ASSERT_EMT(pTimer->pVMR3);
[19497]	2768	LogFlow(("TMR3TimerLoad: %p:{enmState=%s, .pszDesc={%s}} pSSM=%p\n", pTimer, tmTimerState(pTimer->enmState), pTimer->pszDesc, pSSM));
[1]	2769
	2770	/*
	2771	* Load the state and validate it.
	2772	*/
	2773	uint8_t u8State;
	2774	int rc = SSMR3GetU8(pSSM, &u8State);
[13816]	2775	if (RT_FAILURE(rc))
[1]	2776	return rc;
[65897]	2777
	2778	/* TMTIMERSTATE_SAVED_XXX: Workaround for accidental state shift in r47786 (2009-05-26 19:12:12). */
[20121]	2779	if ( u8State == TMTIMERSTATE_SAVED_PENDING_STOP + 1
	2780	\|\| u8State == TMTIMERSTATE_SAVED_PENDING_SCHEDULE + 1)
	2781	u8State--;
[65897]	2782
[20121]	2783	if ( u8State != TMTIMERSTATE_SAVED_PENDING_STOP
	2784	&& u8State != TMTIMERSTATE_SAVED_PENDING_SCHEDULE)
[1]	2785	{
[20121]	2786	AssertLogRelMsgFailed(("u8State=%d\n", u8State));
[1]	2787	return SSMR3HandleSetStatus(pSSM, VERR_TM_LOAD_STATE);
	2788	}
	2789
[37527]	2790	/* Enter the critical sections to make TMTimerSet/Stop happy. */
	2791	if (pTimer->enmClock == TMCLOCK_VIRTUAL_SYNC)
	2792	PDMCritSectEnter(&pTimer->pVMR3->tm.s.VirtualSyncLock, VERR_IGNORED);
[20121]	2793	PPDMCRITSECT pCritSect = pTimer->pCritSect;
	2794	if (pCritSect)
[37527]	2795	PDMCritSectEnter(pCritSect, VERR_IGNORED);
[20121]	2796
	2797	if (u8State == TMTIMERSTATE_SAVED_PENDING_SCHEDULE)
[1]	2798	{
	2799	/*
	2800	* Load the expire time.
	2801	*/
	2802	uint64_t u64Expire;
	2803	rc = SSMR3GetU64(pSSM, &u64Expire);
[13816]	2804	if (RT_FAILURE(rc))
[1]	2805	return rc;
	2806
	2807	/*
	2808	* Set it.
	2809	*/
[20121]	2810	Log(("u8State=%d u64Expire=%llu\n", u8State, u64Expire));
[1]	2811	rc = TMTimerSet(pTimer, u64Expire);
	2812	}
	2813	else
	2814	{
	2815	/*
	2816	* Stop it.
	2817	*/
[20121]	2818	Log(("u8State=%d\n", u8State));
[1]	2819	rc = TMTimerStop(pTimer);
	2820	}
	2821
[20121]	2822	if (pCritSect)
	2823	PDMCritSectLeave(pCritSect);
[37527]	2824	if (pTimer->enmClock == TMCLOCK_VIRTUAL_SYNC)
	2825	PDMCritSectLeave(&pTimer->pVMR3->tm.s.VirtualSyncLock);
[20121]	2826
[1]	2827	/*
	2828	* On failure set SSM status.
	2829	*/
[13816]	2830	if (RT_FAILURE(rc))
[1]	2831	rc = SSMR3HandleSetStatus(pSSM, rc);
	2832	return rc;
	2833	}
	2834
	2835
	2836	/**
[65896]	2837	* Skips the state of a timer in a given saved state.
	2838	*
	2839	* @returns VBox status.
	2840	* @param pSSM Save State Manager handle.
	2841	* @param pfActive Where to store whether the timer was active
	2842	* when the state was saved.
	2843	*/
	2844	VMMR3DECL(int) TMR3TimerSkip(PSSMHANDLE pSSM, bool *pfActive)
	2845	{
	2846	Assert(pSSM); AssertPtr(pfActive);
	2847	LogFlow(("TMR3TimerSkip: pSSM=%p pfActive=%p\n", pSSM, pfActive));
	2848
	2849	/*
	2850	* Load the state and validate it.
	2851	*/
	2852	uint8_t u8State;
	2853	int rc = SSMR3GetU8(pSSM, &u8State);
	2854	if (RT_FAILURE(rc))
	2855	return rc;
[65897]	2856
	2857	/* TMTIMERSTATE_SAVED_XXX: Workaround for accidental state shift in r47786 (2009-05-26 19:12:12). */
[65896]	2858	if ( u8State == TMTIMERSTATE_SAVED_PENDING_STOP + 1
	2859	\|\| u8State == TMTIMERSTATE_SAVED_PENDING_SCHEDULE + 1)
	2860	u8State--;
[65897]	2861
[65896]	2862	if ( u8State != TMTIMERSTATE_SAVED_PENDING_STOP
	2863	&& u8State != TMTIMERSTATE_SAVED_PENDING_SCHEDULE)
	2864	{
	2865	AssertLogRelMsgFailed(("u8State=%d\n", u8State));
	2866	return SSMR3HandleSetStatus(pSSM, VERR_TM_LOAD_STATE);
	2867	}
	2868
	2869	*pfActive = (u8State == TMTIMERSTATE_SAVED_PENDING_SCHEDULE);
	2870	if (*pfActive)
	2871	{
	2872	/*
	2873	* Load the expire time.
	2874	*/
	2875	uint64_t u64Expire;
	2876	rc = SSMR3GetU64(pSSM, &u64Expire);
	2877	}
	2878
	2879	return rc;
	2880	}
	2881
	2882
	2883	/**
[20087]	2884	* Associates a critical section with a timer.
	2885	*
	2886	* The critical section will be entered prior to doing the timer call back, thus
	2887	* avoiding potential races between the timer thread and other threads trying to
	2888	* stop or adjust the timer expiration while it's being delivered. The timer
	2889	* thread will leave the critical section when the timer callback returns.
	2890	*
	2891	* In strict builds, ownership of the critical section will be asserted by
[20089]	2892	* TMTimerSet, TMTimerStop, TMTimerGetExpire and TMTimerDestroy (when called at
	2893	* runtime).
[20087]	2894	*
	2895	* @retval VINF_SUCCESS on success.
	2896	* @retval VERR_INVALID_HANDLE if the timer handle is NULL or invalid
	2897	* (asserted).
	2898	* @retval VERR_INVALID_PARAMETER if pCritSect is NULL or has an invalid magic
	2899	* (asserted).
	2900	* @retval VERR_ALREADY_EXISTS if a critical section was already associated
	2901	* with the timer (asserted).
	2902	* @retval VERR_INVALID_STATE if the timer isn't stopped.
	2903	*
	2904	* @param pTimer The timer handle.
	2905	* @param pCritSect The critical section. The caller must make sure this
	2906	* is around for the life time of the timer.
	2907	*
	2908	* @thread Any, but the caller is responsible for making sure the timer is not
	2909	* active.
	2910	*/
	2911	VMMR3DECL(int) TMR3TimerSetCritSect(PTMTIMERR3 pTimer, PPDMCRITSECT pCritSect)
	2912	{
	2913	AssertPtrReturn(pTimer, VERR_INVALID_HANDLE);
	2914	AssertPtrReturn(pCritSect, VERR_INVALID_PARAMETER);
	2915	const char pszName = PDMR3CritSectName(pCritSect); / exploited for validation */
	2916	AssertReturn(pszName, VERR_INVALID_PARAMETER);
	2917	AssertReturn(!pTimer->pCritSect, VERR_ALREADY_EXISTS);
	2918	AssertReturn(pTimer->enmState == TMTIMERSTATE_STOPPED, VERR_INVALID_STATE);
	2919	LogFlow(("pTimer=%p (%s) pCritSect=%p (%s)\n", pTimer, pTimer->pszDesc, pCritSect, pszName));
	2920
	2921	pTimer->pCritSect = pCritSect;
	2922	return VINF_SUCCESS;
	2923	}
	2924
	2925
	2926	/**
[2623]	2927	* Get the real world UTC time adjusted for VM lag.
[2464]	2928	*
	2929	* @returns pTime.
[58122]	2930	* @param pVM The cross context VM structure.
[2464]	2931	* @param pTime Where to store the time.
	2932	*/
[37452]	2933	VMMR3_INT_DECL(PRTTIMESPEC) TMR3UtcNow(PVM pVM, PRTTIMESPEC pTime)
[2464]	2934	{
[69950]	2935	/*
	2936	* Get a stable set of VirtualSync parameters and calc the lag.
	2937	*/
[44847]	2938	uint64_t offVirtualSync;
	2939	uint64_t offVirtualSyncGivenUp;
	2940	do
	2941	{
	2942	offVirtualSync = ASMAtomicReadU64(&pVM->tm.s.offVirtualSync);
	2943	offVirtualSyncGivenUp = ASMAtomicReadU64((uint64_t volatile *)&pVM->tm.s.offVirtualSyncGivenUp);
	2944	} while (ASMAtomicReadU64(&pVM->tm.s.offVirtualSync) != offVirtualSync);
	2945
	2946	Assert(offVirtualSync >= offVirtualSyncGivenUp);
	2947	uint64_t const offLag = offVirtualSync - offVirtualSyncGivenUp;
	2948
[69950]	2949	/*
	2950	* Get current time and adjust for virtual sync lag and do time displacement.
	2951	*/
[2464]	2952	RTTimeNow(pTime);
[44847]	2953	RTTimeSpecSubNano(pTime, offLag);
[2623]	2954	RTTimeSpecAddNano(pTime, pVM->tm.s.offUTC);
[69950]	2955
	2956	/*
	2957	* Log details if the time changed radically (also triggers on first call).
	2958	*/
	2959	int64_t nsPrev = ASMAtomicXchgS64(&pVM->tm.s.nsLastUtcNow, RTTimeSpecGetNano(pTime));
	2960	int64_t cNsDelta = RTTimeSpecGetNano(pTime) - nsPrev;
[69951]	2961	if ((uint64_t)RT_ABS(cNsDelta) > RT_NS_1HOUR / 2)
[70018]	2962	{
	2963	RTTIMESPEC NowAgain;
	2964	RTTimeNow(&NowAgain);
	2965	LogRel(("TMR3UtcNow: nsNow=%'RI64 nsPrev=%'RI64 -> cNsDelta=%'RI64 (offLag=%'RI64 offVirtualSync=%'RU64 offVirtualSyncGivenUp=%'RU64, NowAgain=%'RI64)\n",
	2966	RTTimeSpecGetNano(pTime), nsPrev, cNsDelta, offLag, offVirtualSync, offVirtualSyncGivenUp, RTTimeSpecGetNano(&NowAgain)));
	2967	if (pVM->tm.s.pszUtcTouchFileOnJump && nsPrev != 0)
	2968	{
	2969	RTFILE hFile;
	2970	int rc = RTFileOpen(&hFile, pVM->tm.s.pszUtcTouchFileOnJump,
	2971	RTFILE_O_WRITE \| RTFILE_O_APPEND \| RTFILE_O_OPEN_CREATE \| RTFILE_O_DENY_NONE);
	2972	if (RT_SUCCESS(rc))
	2973	{
	2974	char szMsg[256];
	2975	size_t cch;
	2976	cch = RTStrPrintf(szMsg, sizeof(szMsg),
	2977	"TMR3UtcNow: nsNow=%'RI64 nsPrev=%'RI64 -> cNsDelta=%'RI64 (offLag=%'RI64 offVirtualSync=%'RU64 offVirtualSyncGivenUp=%'RU64, NowAgain=%'RI64)\n",
	2978	RTTimeSpecGetNano(pTime), nsPrev, cNsDelta, offLag, offVirtualSync, offVirtualSyncGivenUp, RTTimeSpecGetNano(&NowAgain));
	2979	RTFileWrite(hFile, szMsg, cch, NULL);
	2980	RTFileClose(hFile);
	2981	}
	2982	}
	2983	}
[69950]	2984
[2464]	2985	return pTime;
	2986	}
	2987
	2988
	2989	/**
[19747]	2990	* Pauses all clocks except TMCLOCK_REAL.
	2991	*
	2992	* @returns VBox status code, all errors are asserted.
[58122]	2993	* @param pVM The cross context VM structure.
[58123]	2994	* @param pVCpu The cross context virtual CPU structure.
[41803]	2995	* @thread EMT corresponding to Pointer to the VMCPU.
[19747]	2996	*/
	2997	VMMR3DECL(int) TMR3NotifySuspend(PVM pVM, PVMCPU pVCpu)
	2998	{
	2999	VMCPU_ASSERT_EMT(pVCpu);
	3000
	3001	/*
	3002	* The shared virtual clock (includes virtual sync which is tied to it).
	3003	*/
[37527]	3004	TM_LOCK_TIMERS(pVM); /* Paranoia: Exploiting the timer lock here. */
[19747]	3005	int rc = tmVirtualPauseLocked(pVM);
[37527]	3006	TM_UNLOCK_TIMERS(pVM);
[19747]	3007	if (RT_FAILURE(rc))
	3008	return rc;
	3009
	3010	/*
	3011	* Pause the TSC last since it is normally linked to the virtual
[51852]	3012	* sync clock, so the above code may actually stop both clocks.
[19747]	3013	*/
[51852]	3014	if (!pVM->tm.s.fTSCTiedToExecution)
	3015	{
[51867]	3016	TM_LOCK_TIMERS(pVM); /* Exploit the timer lock for synchronization. */
[51852]	3017	rc = tmCpuTickPauseLocked(pVM, pVCpu);
	3018	TM_UNLOCK_TIMERS(pVM);
	3019	if (RT_FAILURE(rc))
	3020	return rc;
	3021	}
[30581]	3022
	3023	#ifndef VBOX_WITHOUT_NS_ACCOUNTING
	3024	/*
	3025	* Update cNsTotal.
	3026	*/
	3027	uint32_t uGen = ASMAtomicIncU32(&pVCpu->tm.s.uTimesGen); Assert(uGen & 1);
	3028	pVCpu->tm.s.cNsTotal = RTTimeNanoTS() - pVCpu->tm.s.u64NsTsStartTotal;
	3029	pVCpu->tm.s.cNsOther = pVCpu->tm.s.cNsTotal - pVCpu->tm.s.cNsExecuting - pVCpu->tm.s.cNsHalted;
	3030	ASMAtomicWriteU32(&pVCpu->tm.s.uTimesGen, (uGen \| 1) + 1);
	3031	#endif
	3032
	3033	return VINF_SUCCESS;
[19747]	3034	}
	3035
	3036
	3037	/**
	3038	* Resumes all clocks except TMCLOCK_REAL.
	3039	*
	3040	* @returns VBox status code, all errors are asserted.
[58122]	3041	* @param pVM The cross context VM structure.
[58123]	3042	* @param pVCpu The cross context virtual CPU structure.
[41803]	3043	* @thread EMT corresponding to Pointer to the VMCPU.
[19747]	3044	*/
	3045	VMMR3DECL(int) TMR3NotifyResume(PVM pVM, PVMCPU pVCpu)
	3046	{
	3047	VMCPU_ASSERT_EMT(pVCpu);
	3048	int rc;
	3049
[30581]	3050	#ifndef VBOX_WITHOUT_NS_ACCOUNTING
[19747]	3051	/*
[30581]	3052	* Set u64NsTsStartTotal. There is no need to back this out if either of
	3053	* the two calls below fail.
	3054	*/
	3055	pVCpu->tm.s.u64NsTsStartTotal = RTTimeNanoTS() - pVCpu->tm.s.cNsTotal;
	3056	#endif
	3057
	3058	/*
[19747]	3059	* Resume the TSC first since it is normally linked to the virtual sync
	3060	* clock, so it may actually not be resumed until we've executed the code
	3061	* below.
	3062	*/
	3063	if (!pVM->tm.s.fTSCTiedToExecution)
	3064	{
[51867]	3065	TM_LOCK_TIMERS(pVM); /* Exploit the timer lock for synchronization. */
[51852]	3066	rc = tmCpuTickResumeLocked(pVM, pVCpu);
	3067	TM_UNLOCK_TIMERS(pVM);
[19747]	3068	if (RT_FAILURE(rc))
	3069	return rc;
	3070	}
	3071
	3072	/*
	3073	* The shared virtual clock (includes virtual sync which is tied to it).
	3074	*/
[37527]	3075	TM_LOCK_TIMERS(pVM); /* Paranoia: Exploiting the timer lock here. */
[19747]	3076	rc = tmVirtualResumeLocked(pVM);
[37527]	3077	TM_UNLOCK_TIMERS(pVM);
[19747]	3078
	3079	return rc;
	3080	}
	3081
	3082
	3083	/**
[19500]	3084	* Sets the warp drive percent of the virtual time.
	3085	*
	3086	* @returns VBox status code.
[58126]	3087	* @param pUVM The user mode VM structure.
[19500]	3088	* @param u32Percent The new percentage. 100 means normal operation.
	3089	*/
[44346]	3090	VMMDECL(int) TMR3SetWarpDrive(PUVM pUVM, uint32_t u32Percent)
[19500]	3091	{
[44346]	3092	return VMR3ReqPriorityCallWaitU(pUVM, VMCPUID_ANY, (PFNRT)tmR3SetWarpDrive, 2, pUVM, u32Percent);
[19500]	3093	}
	3094
	3095
	3096	/**
	3097	* EMT worker for TMR3SetWarpDrive.
	3098	*
	3099	* @returns VBox status code.
[44346]	3100	* @param pUVM The user mode VM handle.
[19500]	3101	* @param u32Percent See TMR3SetWarpDrive().
	3102	* @internal
	3103	*/
[44346]	3104	static DECLCALLBACK(int) tmR3SetWarpDrive(PUVM pUVM, uint32_t u32Percent)
[19500]	3105	{
[44346]	3106	PVM pVM = pUVM->pVM;
	3107	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
[19500]	3108	PVMCPU pVCpu = VMMGetCpu(pVM);
	3109
	3110	/*
	3111	* Validate it.
	3112	*/
	3113	AssertMsgReturn(u32Percent >= 2 && u32Percent <= 20000,
	3114	("%RX32 is not between 2 and 20000 (inclusive).\n", u32Percent),
	3115	VERR_INVALID_PARAMETER);
	3116
	3117	/** @todo This isn't a feature specific to virtual time, move the variables to
[35272]	3118	* TM level and make it affect TMR3UTCNow as well! */
[19500]	3119
	3120	/*
	3121	* If the time is running we'll have to pause it before we can change
	3122	* the warp drive settings.
	3123	*/
[37527]	3124	TM_LOCK_TIMERS(pVM); /* Paranoia: Exploiting the timer lock here. */
[19500]	3125	bool fPaused = !!pVM->tm.s.cVirtualTicking;
[19747]	3126	if (fPaused) /** @todo this isn't really working, but wtf. */
	3127	TMR3NotifySuspend(pVM, pVCpu);
[19500]	3128
[53441]	3129	/** @todo Should switch TM mode to virt-tsc-emulated if it isn't already! */
[19500]	3130	pVM->tm.s.u32VirtualWarpDrivePercentage = u32Percent;
	3131	pVM->tm.s.fVirtualWarpDrive = u32Percent != 100;
	3132	LogRel(("TM: u32VirtualWarpDrivePercentage=%RI32 fVirtualWarpDrive=%RTbool\n",
	3133	pVM->tm.s.u32VirtualWarpDrivePercentage, pVM->tm.s.fVirtualWarpDrive));
	3134
	3135	if (fPaused)
[19747]	3136	TMR3NotifyResume(pVM, pVCpu);
[37527]	3137	TM_UNLOCK_TIMERS(pVM);
[19500]	3138	return VINF_SUCCESS;
	3139	}
	3140
	3141
	3142	/**
[62596]	3143	* Gets the current TMCLOCK_VIRTUAL time without checking
	3144	* timers or anything.
	3145	*
	3146	* @returns The timestamp.
	3147	* @param pUVM The user mode VM structure.
	3148	*
	3149	* @remarks See TMVirtualGetNoCheck.
	3150	*/
	3151	VMMR3DECL(uint64_t) TMR3TimeVirtGet(PUVM pUVM)
	3152	{
	3153	UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT64_MAX);
	3154	PVM pVM = pUVM->pVM;
	3155	VM_ASSERT_VALID_EXT_RETURN(pVM, UINT64_MAX);
	3156	return TMVirtualGetNoCheck(pVM);
	3157	}
	3158
[63739]	3159
[62596]	3160	/**
	3161	* Gets the current TMCLOCK_VIRTUAL time in milliseconds without checking
	3162	* timers or anything.
	3163	*
	3164	* @returns The timestamp in milliseconds.
	3165	* @param pUVM The user mode VM structure.
	3166	*
	3167	* @remarks See TMVirtualGetNoCheck.
	3168	*/
	3169	VMMR3DECL(uint64_t) TMR3TimeVirtGetMilli(PUVM pUVM)
	3170	{
	3171	UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT64_MAX);
	3172	PVM pVM = pUVM->pVM;
	3173	VM_ASSERT_VALID_EXT_RETURN(pVM, UINT64_MAX);
	3174	return TMVirtualToMilli(pVM, TMVirtualGetNoCheck(pVM));
	3175	}
	3176
[63739]	3177
[62596]	3178	/**
	3179	* Gets the current TMCLOCK_VIRTUAL time in microseconds without checking
	3180	* timers or anything.
	3181	*
	3182	* @returns The timestamp in microseconds.
	3183	* @param pUVM The user mode VM structure.
	3184	*
	3185	* @remarks See TMVirtualGetNoCheck.
	3186	*/
	3187	VMMR3DECL(uint64_t) TMR3TimeVirtGetMicro(PUVM pUVM)
	3188	{
	3189	UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT64_MAX);
	3190	PVM pVM = pUVM->pVM;
	3191	VM_ASSERT_VALID_EXT_RETURN(pVM, UINT64_MAX);
	3192	return TMVirtualToMicro(pVM, TMVirtualGetNoCheck(pVM));
	3193	}
	3194
[63739]	3195
[62596]	3196	/**
	3197	* Gets the current TMCLOCK_VIRTUAL time in nanoseconds without checking
	3198	* timers or anything.
	3199	*
	3200	* @returns The timestamp in nanoseconds.
	3201	* @param pUVM The user mode VM structure.
	3202	*
	3203	* @remarks See TMVirtualGetNoCheck.
	3204	*/
	3205	VMMR3DECL(uint64_t) TMR3TimeVirtGetNano(PUVM pUVM)
	3206	{
	3207	UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT64_MAX);
	3208	PVM pVM = pUVM->pVM;
	3209	VM_ASSERT_VALID_EXT_RETURN(pVM, UINT64_MAX);
	3210	return TMVirtualToNano(pVM, TMVirtualGetNoCheck(pVM));
	3211	}
	3212
	3213
	3214	/**
[44346]	3215	* Gets the current warp drive percent.
	3216	*
	3217	* @returns The warp drive percent.
[58126]	3218	* @param pUVM The user mode VM structure.
[44346]	3219	*/
	3220	VMMR3DECL(uint32_t) TMR3GetWarpDrive(PUVM pUVM)
	3221	{
	3222	UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT32_MAX);
	3223	PVM pVM = pUVM->pVM;
	3224	VM_ASSERT_VALID_EXT_RETURN(pVM, UINT32_MAX);
	3225	return pVM->tm.s.u32VirtualWarpDrivePercentage;
	3226	}
	3227
	3228
	3229	/**
[30581]	3230	* Gets the performance information for one virtual CPU as seen by the VMM.
	3231	*
	3232	* The returned times covers the period where the VM is running and will be
	3233	* reset when restoring a previous VM state (at least for the time being).
	3234	*
	3235	* @retval VINF_SUCCESS on success.
	3236	* @retval VERR_NOT_IMPLEMENTED if not compiled in.
	3237	* @retval VERR_INVALID_STATE if the VM handle is bad.
[80113]	3238	* @retval VERR_INVALID_CPU_ID if idCpu is out of range.
[30581]	3239	*
[58122]	3240	* @param pVM The cross context VM structure.
[30581]	3241	* @param idCpu The ID of the virtual CPU which times to get.
	3242	* @param pcNsTotal Where to store the total run time (nano seconds) of
	3243	* the CPU, i.e. the sum of the three other returns.
	3244	* Optional.
	3245	* @param pcNsExecuting Where to store the time (nano seconds) spent
	3246	* executing guest code. Optional.
	3247	* @param pcNsHalted Where to store the time (nano seconds) spent
	3248	* halted. Optional
	3249	* @param pcNsOther Where to store the time (nano seconds) spent
	3250	* preempted by the host scheduler, on virtualization
	3251	* overhead and on other tasks.
	3252	*/
	3253	VMMR3DECL(int) TMR3GetCpuLoadTimes(PVM pVM, VMCPUID idCpu, uint64_t pcNsTotal, uint64_t pcNsExecuting,
	3254	uint64_t pcNsHalted, uint64_t pcNsOther)
	3255	{
	3256	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_STATE);
[80113]	3257	AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
[30581]	3258
	3259	#ifndef VBOX_WITHOUT_NS_ACCOUNTING
	3260	/*
	3261	* Get a stable result set.
	3262	* This should be way quicker than an EMT request.
	3263	*/
[80191]	3264	PVMCPU pVCpu = pVM->apCpusR3[idCpu];
[30581]	3265	uint32_t uTimesGen = ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen);
	3266	uint64_t cNsTotal = pVCpu->tm.s.cNsTotal;
	3267	uint64_t cNsExecuting = pVCpu->tm.s.cNsExecuting;
	3268	uint64_t cNsHalted = pVCpu->tm.s.cNsHalted;
	3269	uint64_t cNsOther = pVCpu->tm.s.cNsOther;
	3270	while ( (uTimesGen & 1) /* update in progress */
	3271	\|\| uTimesGen != ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen))
	3272	{
	3273	RTThreadYield();
	3274	uTimesGen = ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen);
	3275	cNsTotal = pVCpu->tm.s.cNsTotal;
	3276	cNsExecuting = pVCpu->tm.s.cNsExecuting;
	3277	cNsHalted = pVCpu->tm.s.cNsHalted;
	3278	cNsOther = pVCpu->tm.s.cNsOther;
	3279	}
	3280
	3281	/*
	3282	* Fill in the return values.
	3283	*/
	3284	if (pcNsTotal)
	3285	*pcNsTotal = cNsTotal;
	3286	if (pcNsExecuting)
	3287	*pcNsExecuting = cNsExecuting;
	3288	if (pcNsHalted)
	3289	*pcNsHalted = cNsHalted;
	3290	if (pcNsOther)
	3291	*pcNsOther = cNsOther;
	3292
	3293	return VINF_SUCCESS;
	3294
	3295	#else
	3296	return VERR_NOT_IMPLEMENTED;
	3297	#endif
	3298	}
	3299
[80113]	3300
	3301	/**
	3302	* Gets the performance information for one virtual CPU as seen by the VMM in
	3303	* percents.
	3304	*
	3305	* The returned times covers the period where the VM is running and will be
	3306	* reset when restoring a previous VM state (at least for the time being).
	3307	*
	3308	* @retval VINF_SUCCESS on success.
	3309	* @retval VERR_NOT_IMPLEMENTED if not compiled in.
	3310	* @retval VERR_INVALID_VM_HANDLE if the VM handle is bad.
	3311	* @retval VERR_INVALID_CPU_ID if idCpu is out of range.
	3312	*
	3313	* @param pUVM The usermode VM structure.
	3314	* @param idCpu The ID of the virtual CPU which times to get.
	3315	* @param pcMsInterval Where to store the interval of the percentages in
	3316	* milliseconds. Optional.
	3317	* @param pcPctExecuting Where to return the percentage of time spent
	3318	* executing guest code. Optional.
	3319	* @param pcPctHalted Where to return the percentage of time spent halted.
	3320	* Optional
	3321	* @param pcPctOther Where to return the percentage of time spent
	3322	* preempted by the host scheduler, on virtualization
	3323	* overhead and on other tasks.
	3324	*/
	3325	VMMR3DECL(int) TMR3GetCpuLoadPercents(PUVM pUVM, VMCPUID idCpu, uint64_t pcMsInterval, uint8_t pcPctExecuting,
	3326	uint8_t pcPctHalted, uint8_t pcPctOther)
	3327	{
	3328	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
	3329	PVM pVM = pUVM->pVM;
	3330	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
	3331	AssertReturn(idCpu == VMCPUID_ALL \|\| idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
	3332
[30586]	3333	#ifndef VBOX_WITHOUT_NS_ACCOUNTING
[80113]	3334	TMCPULOADSTATE volatile *pState;
	3335	if (idCpu == VMCPUID_ALL)
	3336	pState = &pVM->tm.s.CpuLoad;
	3337	else
[80191]	3338	pState = &pVM->apCpusR3[idCpu]->tm.s.CpuLoad;
[30581]	3339
[80113]	3340	if (pcMsInterval)
	3341	*pcMsInterval = RT_MS_1SEC;
	3342	if (pcPctExecuting)
	3343	*pcPctExecuting = pState->cPctExecuting;
	3344	if (pcPctHalted)
	3345	*pcPctHalted = pState->cPctHalted;
	3346	if (pcPctOther)
	3347	*pcPctOther = pState->cPctOther;
	3348
	3349	return VINF_SUCCESS;
	3350
	3351	#else
	3352	RT_NOREF(pcMsInterval, pcPctExecuting, pcPctHalted, pcPctOther);
	3353	return VERR_NOT_IMPLEMENTED;
	3354	#endif
	3355	}
	3356
	3357	#ifndef VBOX_WITHOUT_NS_ACCOUNTING
	3358
[30581]	3359	/**
[30586]	3360	* Helper for tmR3CpuLoadTimer.
	3361	* @returns
[58126]	3362	* @param pState The state to update.
	3363	* @param cNsTotal Total time.
	3364	* @param cNsExecuting Time executing.
	3365	* @param cNsHalted Time halted.
[30586]	3366	*/
[58126]	3367	DECLINLINE(void) tmR3CpuLoadTimerMakeUpdate(PTMCPULOADSTATE pState, uint64_t cNsTotal, uint64_t cNsExecuting, uint64_t cNsHalted)
[30586]	3368	{
[80115]	3369	/* Calc & update deltas */
[30586]	3370	uint64_t cNsTotalDelta = cNsTotal - pState->cNsPrevTotal;
	3371	pState->cNsPrevTotal = cNsTotal;
	3372
	3373	uint64_t cNsExecutingDelta = cNsExecuting - pState->cNsPrevExecuting;
	3374	pState->cNsPrevExecuting = cNsExecuting;
	3375
	3376	uint64_t cNsHaltedDelta = cNsHalted - pState->cNsPrevHalted;
	3377	pState->cNsPrevHalted = cNsHalted;
	3378
	3379	/* Calc pcts. */
[80115]	3380	uint8_t cPctExecuting, cPctHalted, cPctOther;
[30586]	3381	if (!cNsTotalDelta)
	3382	{
[80115]	3383	cPctExecuting = 0;
	3384	cPctHalted = 100;
	3385	cPctOther = 0;
[30586]	3386	}
	3387	else if (cNsTotalDelta < UINT64_MAX / 4)
	3388	{
[80115]	3389	cPctExecuting = (uint8_t)(cNsExecutingDelta * 100 / cNsTotalDelta);
	3390	cPctHalted = (uint8_t)(cNsHaltedDelta * 100 / cNsTotalDelta);
	3391	cPctOther = (uint8_t)((cNsTotalDelta - cNsExecutingDelta - cNsHaltedDelta) * 100 / cNsTotalDelta);
[30586]	3392	}
	3393	else
	3394	{
[80115]	3395	cPctExecuting = 0;
	3396	cPctHalted = 100;
	3397	cPctOther = 0;
[30586]	3398	}
[80115]	3399
	3400	/* Update percentages: */
	3401	size_t idxHistory = pState->idxHistory + 1;
	3402	if (idxHistory >= RT_ELEMENTS(pState->aHistory))
	3403	idxHistory = 0;
	3404
	3405	pState->cPctExecuting = cPctExecuting;
	3406	pState->cPctHalted = cPctHalted;
	3407	pState->cPctOther = cPctOther;
	3408
	3409	pState->aHistory[idxHistory].cPctExecuting = cPctExecuting;
	3410	pState->aHistory[idxHistory].cPctHalted = cPctHalted;
	3411	pState->aHistory[idxHistory].cPctOther = cPctOther;
	3412
	3413	pState->idxHistory = (uint16_t)idxHistory;
	3414	if (pState->cHistoryEntries < RT_ELEMENTS(pState->aHistory))
	3415	pState->cHistoryEntries++;
[30586]	3416	}
	3417
	3418
	3419	/**
	3420	* Timer callback that calculates the CPU load since the last time it was
	3421	* called.
	3422	*
[58122]	3423	* @param pVM The cross context VM structure.
[30586]	3424	* @param pTimer The timer.
	3425	* @param pvUser NULL, unused.
	3426	*/
	3427	static DECLCALLBACK(void) tmR3CpuLoadTimer(PVM pVM, PTMTIMER pTimer, void *pvUser)
	3428	{
	3429	/*
	3430	* Re-arm the timer first.
	3431	*/
	3432	int rc = TMTimerSetMillies(pTimer, 1000);
	3433	AssertLogRelRC(rc);
	3434	NOREF(pvUser);
	3435
	3436	/*
	3437	* Update the values for each CPU.
	3438	*/
	3439	uint64_t cNsTotalAll = 0;
	3440	uint64_t cNsExecutingAll = 0;
	3441	uint64_t cNsHaltedAll = 0;
	3442	for (VMCPUID iCpu = 0; iCpu < pVM->cCpus; iCpu++)
	3443	{
[80191]	3444	PVMCPU pVCpu = pVM->apCpusR3[iCpu];
[30586]	3445
	3446	/* Try get a stable data set. */
	3447	uint32_t cTries = 3;
	3448	uint32_t uTimesGen = ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen);
	3449	uint64_t cNsTotal = pVCpu->tm.s.cNsTotal;
	3450	uint64_t cNsExecuting = pVCpu->tm.s.cNsExecuting;
	3451	uint64_t cNsHalted = pVCpu->tm.s.cNsHalted;
	3452	while (RT_UNLIKELY( (uTimesGen & 1) /* update in progress */
	3453	\|\| uTimesGen != ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen)))
	3454	{
	3455	if (!--cTries)
	3456	break;
	3457	ASMNopPause();
	3458	uTimesGen = ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen);
	3459	cNsTotal = pVCpu->tm.s.cNsTotal;
	3460	cNsExecuting = pVCpu->tm.s.cNsExecuting;
	3461	cNsHalted = pVCpu->tm.s.cNsHalted;
	3462	}
	3463
	3464	/* Totals */
	3465	cNsTotalAll += cNsTotal;
	3466	cNsExecutingAll += cNsExecuting;
	3467	cNsHaltedAll += cNsHalted;
	3468
	3469	/* Calc the PCTs and update the state. */
	3470	tmR3CpuLoadTimerMakeUpdate(&pVCpu->tm.s.CpuLoad, cNsTotal, cNsExecuting, cNsHalted);
	3471	}
	3472
	3473	/*
	3474	* Update the value for all the CPUs.
	3475	*/
	3476	tmR3CpuLoadTimerMakeUpdate(&pVM->tm.s.CpuLoad, cNsTotalAll, cNsExecutingAll, cNsHaltedAll);
	3477
	3478	}
	3479
	3480	#endif /* !VBOX_WITHOUT_NS_ACCOUNTING */
	3481
[54065]	3482
[32484]	3483	/**
[54308]	3484	* @callback_method_impl{PFNVMMEMTRENDEZVOUS,
	3485	* Worker for TMR3CpuTickParavirtEnable}
[54065]	3486	*/
[54308]	3487	static DECLCALLBACK(VBOXSTRICTRC) tmR3CpuTickParavirtEnable(PVM pVM, PVMCPU pVCpuEmt, void *pvData)
[54065]	3488	{
[54308]	3489	AssertPtr(pVM); Assert(pVM->tm.s.fTSCModeSwitchAllowed); NOREF(pVCpuEmt); NOREF(pvData);
[54672]	3490	Assert(pVM->tm.s.enmTSCMode != TMTSCMODE_REAL_TSC_OFFSET);
[72522]	3491	Assert(pVM->tm.s.enmTSCMode != TMTSCMODE_NATIVE_API); /** @todo figure out NEM/win and paravirt */
[54672]	3492	Assert(tmR3HasFixedTSC(pVM));
[54065]	3493
[54672]	3494	/*
	3495	* The return value of TMCpuTickGet() and the guest's TSC value for each
	3496	* CPU must remain constant across the TM TSC mode-switch. Thus we have
	3497	* the following equation (new/old signifies the new/old tsc modes):
	3498	* uNewTsc = uOldTsc
	3499	*
	3500	* Where (see tmCpuTickGetInternal):
	3501	* uOldTsc = uRawOldTsc - offTscRawSrcOld
	3502	* uNewTsc = uRawNewTsc - offTscRawSrcNew
	3503	*
	3504	* Solve it for offTscRawSrcNew without replacing uOldTsc:
	3505	* uRawNewTsc - offTscRawSrcNew = uOldTsc
	3506	* => -offTscRawSrcNew = uOldTsc - uRawNewTsc
	3507	* => offTscRawSrcNew = uRawNewTsc - uOldTsc
	3508	*/
	3509	uint64_t uRawOldTsc = tmR3CpuTickGetRawVirtualNoCheck(pVM);
	3510	uint64_t uRawNewTsc = SUPReadTsc();
	3511	uint32_t cCpus = pVM->cCpus;
	3512	for (uint32_t i = 0; i < cCpus; i++)
[54065]	3513	{
[80191]	3514	PVMCPU pVCpu = pVM->apCpusR3[i];
[54672]	3515	uint64_t uOldTsc = uRawOldTsc - pVCpu->tm.s.offTSCRawSrc;
	3516	pVCpu->tm.s.offTSCRawSrc = uRawNewTsc - uOldTsc;
	3517	Assert(uRawNewTsc - pVCpu->tm.s.offTSCRawSrc >= uOldTsc); /* paranoia^256 */
	3518	}
[54065]	3519
[55481]	3520	LogRel(("TM: Switching TSC mode from '%s' to '%s'\n", tmR3GetTSCModeNameEx(pVM->tm.s.enmTSCMode),
	3521	tmR3GetTSCModeNameEx(TMTSCMODE_REAL_TSC_OFFSET)));
[54672]	3522	pVM->tm.s.enmTSCMode = TMTSCMODE_REAL_TSC_OFFSET;
[54065]	3523	return VINF_SUCCESS;
	3524	}
	3525
	3526
	3527	/**
	3528	* Notify TM that the guest has enabled usage of a paravirtualized TSC.
	3529	*
[54308]	3530	* This may perform a EMT rendezvous and change the TSC virtualization mode.
	3531	*
[54065]	3532	* @returns VBox status code.
[58122]	3533	* @param pVM The cross context VM structure.
[54065]	3534	*/
	3535	VMMR3_INT_DECL(int) TMR3CpuTickParavirtEnable(PVM pVM)
	3536	{
	3537	int rc = VINF_SUCCESS;
	3538	if (pVM->tm.s.fTSCModeSwitchAllowed)
[54672]	3539	{
	3540	if (pVM->tm.s.enmTSCMode != TMTSCMODE_REAL_TSC_OFFSET)
	3541	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE, tmR3CpuTickParavirtEnable, NULL);
	3542	}
	3543	else
[55537]	3544	LogRel(("TM: Host/VM is not suitable for using TSC mode '%s', request to change TSC mode ignored\n",
[55481]	3545	tmR3GetTSCModeNameEx(TMTSCMODE_REAL_TSC_OFFSET)));
[54065]	3546	pVM->tm.s.fParavirtTscEnabled = true;
	3547	return rc;
	3548	}
	3549
	3550
	3551	/**
[54308]	3552	* @callback_method_impl{PFNVMMEMTRENDEZVOUS,
	3553	* Worker for TMR3CpuTickParavirtDisable}
	3554	*/
	3555	static DECLCALLBACK(VBOXSTRICTRC) tmR3CpuTickParavirtDisable(PVM pVM, PVMCPU pVCpuEmt, void *pvData)
	3556	{
	3557	AssertPtr(pVM); Assert(pVM->tm.s.fTSCModeSwitchAllowed); NOREF(pVCpuEmt);
[54672]	3558	Assert( pVM->tm.s.enmTSCMode == TMTSCMODE_REAL_TSC_OFFSET
	3559	&& pVM->tm.s.enmTSCMode != pVM->tm.s.enmOriginalTSCMode);
[62644]	3560	RT_NOREF1(pvData);
[54308]	3561
[54672]	3562	/*
	3563	* See tmR3CpuTickParavirtEnable for an explanation of the conversion math.
	3564	*/
	3565	uint64_t uRawOldTsc = SUPReadTsc();
	3566	uint64_t uRawNewTsc = tmR3CpuTickGetRawVirtualNoCheck(pVM);
	3567	uint32_t cCpus = pVM->cCpus;
	3568	for (uint32_t i = 0; i < cCpus; i++)
[54308]	3569	{
[80191]	3570	PVMCPU pVCpu = pVM->apCpusR3[i];
[54672]	3571	uint64_t uOldTsc = uRawOldTsc - pVCpu->tm.s.offTSCRawSrc;
	3572	pVCpu->tm.s.offTSCRawSrc = uRawNewTsc - uOldTsc;
	3573	Assert(uRawNewTsc - pVCpu->tm.s.offTSCRawSrc >= uOldTsc); /* paranoia^256 */
[54308]	3574
[54672]	3575	/* Update the last-seen tick here as we havent't been updating it (as we don't
	3576	need it) while in pure TSC-offsetting mode. */
	3577	pVCpu->tm.s.u64TSCLastSeen = uOldTsc;
[54308]	3578	}
[55481]	3579
	3580	LogRel(("TM: Switching TSC mode from '%s' to '%s'\n", tmR3GetTSCModeNameEx(pVM->tm.s.enmTSCMode),
	3581	tmR3GetTSCModeNameEx(pVM->tm.s.enmOriginalTSCMode)));
[54672]	3582	pVM->tm.s.enmTSCMode = pVM->tm.s.enmOriginalTSCMode;
[54308]	3583	return VINF_SUCCESS;
	3584	}
	3585
	3586
	3587	/**
[54065]	3588	* Notify TM that the guest has disabled usage of a paravirtualized TSC.
	3589	*
[54672]	3590	* If TMR3CpuTickParavirtEnable() changed the TSC virtualization mode, this will
[54308]	3591	* perform an EMT rendezvous to revert those changes.
	3592	*
[54065]	3593	* @returns VBox status code.
[58122]	3594	* @param pVM The cross context VM structure.
[54065]	3595	*/
	3596	VMMR3_INT_DECL(int) TMR3CpuTickParavirtDisable(PVM pVM)
	3597	{
	3598	int rc = VINF_SUCCESS;
[54672]	3599	if ( pVM->tm.s.fTSCModeSwitchAllowed
	3600	&& pVM->tm.s.enmTSCMode == TMTSCMODE_REAL_TSC_OFFSET
	3601	&& pVM->tm.s.enmTSCMode != pVM->tm.s.enmOriginalTSCMode)
[54308]	3602	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE, tmR3CpuTickParavirtDisable, NULL);
[54065]	3603	pVM->tm.s.fParavirtTscEnabled = false;
	3604	return rc;
	3605	}
	3606
	3607
	3608	/**
[54697]	3609	* Check whether the guest can be presented a fixed rate & monotonic TSC.
[54672]	3610	*
	3611	* @returns true if TSC is stable, false otherwise.
[58122]	3612	* @param pVM The cross context VM structure.
[54672]	3613	* @param fWithParavirtEnabled Whether it's fixed & monotonic when
	3614	* paravirt. TSC is enabled or not.
	3615	*
	3616	* @remarks Must be called only after TMR3InitFinalize().
	3617	*/
	3618	VMMR3_INT_DECL(bool) TMR3CpuTickIsFixedRateMonotonic(PVM pVM, bool fWithParavirtEnabled)
	3619	{
[54697]	3620	/** @todo figure out what exactly we want here later. */
	3621	NOREF(fWithParavirtEnabled);
	3622	return ( tmR3HasFixedTSC(pVM) /* Host has fixed-rate TSC. */
	3623	&& g_pSUPGlobalInfoPage->u32Mode != SUPGIPMODE_ASYNC_TSC); /* GIP thinks it's monotonic. */
[54672]	3624	}
	3625
	3626
	3627	/**
[32484]	3628	* Gets the 5 char clock name for the info tables.
	3629	*
	3630	* @returns The name.
	3631	* @param enmClock The clock.
	3632	*/
	3633	DECLINLINE(const char *) tmR3Get5CharClockName(TMCLOCK enmClock)
	3634	{
	3635	switch (enmClock)
	3636	{
	3637	case TMCLOCK_REAL: return "Real ";
	3638	case TMCLOCK_VIRTUAL: return "Virt ";
	3639	case TMCLOCK_VIRTUAL_SYNC: return "VrSy ";
	3640	case TMCLOCK_TSC: return "TSC ";
	3641	default: return "Bad ";
	3642	}
	3643	}
[30586]	3644
[32484]	3645
[30586]	3646	/**
[1]	3647	* Display all timers.
	3648	*
[58122]	3649	* @param pVM The cross context VM structure.
[1]	3650	* @param pHlp The info helpers.
	3651	* @param pszArgs Arguments, ignored.
	3652	*/
	3653	static DECLCALLBACK(void) tmR3TimerInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
	3654	{
	3655	NOREF(pszArgs);
	3656	pHlp->pfnPrintf(pHlp,
	3657	"Timers (pVM=%p)\n"
[32504]	3658	"%.s %.s %.s %.s Clock %18s %18s %6s %-25s Description\n",
[1]	3659	pVM,
	3660	sizeof(RTR3PTR) * 2, "pTimerR3 ",
	3661	sizeof(int32_t) * 2, "offNext ",
	3662	sizeof(int32_t) * 2, "offPrev ",
	3663	sizeof(int32_t) * 2, "offSched ",
	3664	"Time",
	3665	"Expire",
[32484]	3666	"HzHint",
[1]	3667	"State");
[37527]	3668	TM_LOCK_TIMERS(pVM);
[4787]	3669	for (PTMTIMERR3 pTimer = pVM->tm.s.pCreated; pTimer; pTimer = pTimer->pBigNext)
[1]	3670	{
	3671	pHlp->pfnPrintf(pHlp,
[32484]	3672	"%p %08RX32 %08RX32 %08RX32 %s %18RU64 %18RU64 %6RU32 %-25s %s\n",
[1]	3673	pTimer,
	3674	pTimer->offNext,
	3675	pTimer->offPrev,
	3676	pTimer->offScheduleNext,
[32484]	3677	tmR3Get5CharClockName(pTimer->enmClock),
[1]	3678	TMTimerGet(pTimer),
	3679	pTimer->u64Expire,
[32484]	3680	pTimer->uHzHint,
[1]	3681	tmTimerState(pTimer->enmState),
	3682	pTimer->pszDesc);
	3683	}
[37527]	3684	TM_UNLOCK_TIMERS(pVM);
[1]	3685	}
	3686
	3687
	3688	/**
	3689	* Display all active timers.
	3690	*
[58122]	3691	* @param pVM The cross context VM structure.
[1]	3692	* @param pHlp The info helpers.
	3693	* @param pszArgs Arguments, ignored.
	3694	*/
	3695	static DECLCALLBACK(void) tmR3TimerInfoActive(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
	3696	{
	3697	NOREF(pszArgs);
	3698	pHlp->pfnPrintf(pHlp,
	3699	"Active Timers (pVM=%p)\n"
[32484]	3700	"%.s %.s %.s %.s Clock %18s %18s %6s %-25s Description\n",
[1]	3701	pVM,
	3702	sizeof(RTR3PTR) * 2, "pTimerR3 ",
	3703	sizeof(int32_t) * 2, "offNext ",
	3704	sizeof(int32_t) * 2, "offPrev ",
	3705	sizeof(int32_t) * 2, "offSched ",
	3706	"Time",
	3707	"Expire",
[32484]	3708	"HzHint",
[1]	3709	"State");
	3710	for (unsigned iQueue = 0; iQueue < TMCLOCK_MAX; iQueue++)
	3711	{
[37527]	3712	TM_LOCK_TIMERS(pVM);
[4787]	3713	for (PTMTIMERR3 pTimer = TMTIMER_GET_HEAD(&pVM->tm.s.paTimerQueuesR3[iQueue]);
[1]	3714	pTimer;
	3715	pTimer = TMTIMER_GET_NEXT(pTimer))
	3716	{
	3717	pHlp->pfnPrintf(pHlp,
[32484]	3718	"%p %08RX32 %08RX32 %08RX32 %s %18RU64 %18RU64 %6RU32 %-25s %s\n",
[1]	3719	pTimer,
	3720	pTimer->offNext,
	3721	pTimer->offPrev,
	3722	pTimer->offScheduleNext,
[32484]	3723	tmR3Get5CharClockName(pTimer->enmClock),
[1]	3724	TMTimerGet(pTimer),
	3725	pTimer->u64Expire,
[32484]	3726	pTimer->uHzHint,
[1]	3727	tmTimerState(pTimer->enmState),
	3728	pTimer->pszDesc);
	3729	}
[37527]	3730	TM_UNLOCK_TIMERS(pVM);
[1]	3731	}
	3732	}
	3733
[1057]	3734
	3735	/**
	3736	* Display all clocks.
	3737	*
[58122]	3738	* @param pVM The cross context VM structure.
[1057]	3739	* @param pHlp The info helpers.
	3740	* @param pszArgs Arguments, ignored.
	3741	*/
	3742	static DECLCALLBACK(void) tmR3InfoClocks(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
	3743	{
	3744	NOREF(pszArgs);
	3745
[2283]	3746	/*
	3747	* Read the times first to avoid more than necessary time variation.
	3748	*/
[19444]	3749	const uint64_t u64Virtual = TMVirtualGet(pVM);
[2283]	3750	const uint64_t u64VirtualSync = TMVirtualSyncGet(pVM);
[19444]	3751	const uint64_t u64Real = TMRealGet(pVM);
[2283]	3752
[22890]	3753	for (VMCPUID i = 0; i < pVM->cCpus; i++)
[1057]	3754	{
[80191]	3755	PVMCPU pVCpu = pVM->apCpusR3[i];
[19399]	3756	uint64_t u64TSC = TMCpuTickGet(pVCpu);
[19032]	3757
	3758	/*
	3759	* TSC
	3760	*/
	3761	pHlp->pfnPrintf(pHlp,
[53430]	3762	"Cpu Tick: %18RU64 (%#016RX64) %RU64Hz %s - virtualized",
[19032]	3763	u64TSC, u64TSC, TMCpuTicksPerSecond(pVM),
[53430]	3764	pVCpu->tm.s.fTSCTicking ? "ticking" : "paused");
[53441]	3765	if (pVM->tm.s.enmTSCMode == TMTSCMODE_REAL_TSC_OFFSET)
[19032]	3766	{
[53430]	3767	pHlp->pfnPrintf(pHlp, " - real tsc offset");
[20689]	3768	if (pVCpu->tm.s.offTSCRawSrc)
	3769	pHlp->pfnPrintf(pHlp, "\n offset %RU64", pVCpu->tm.s.offTSCRawSrc);
[19032]	3770	}
[72522]	3771	else if (pVM->tm.s.enmTSCMode == TMTSCMODE_NATIVE_API)
	3772	pHlp->pfnPrintf(pHlp, " - native api");
[19032]	3773	else
	3774	pHlp->pfnPrintf(pHlp, " - virtual clock");
	3775	pHlp->pfnPrintf(pHlp, "\n");
[1057]	3776	}
	3777
[2611]	3778	/*
	3779	* virtual
[2283]	3780	*/
[1057]	3781	pHlp->pfnPrintf(pHlp,
[2283]	3782	" Virtual: %18RU64 (%#016RX64) %RU64Hz %s",
	3783	u64Virtual, u64Virtual, TMVirtualGetFreq(pVM),
[19324]	3784	pVM->tm.s.cVirtualTicking ? "ticking" : "paused");
[1057]	3785	if (pVM->tm.s.fVirtualWarpDrive)
	3786	pHlp->pfnPrintf(pHlp, " WarpDrive %RU32 %%", pVM->tm.s.u32VirtualWarpDrivePercentage);
	3787	pHlp->pfnPrintf(pHlp, "\n");
	3788
[2611]	3789	/*
	3790	* virtual sync
[2283]	3791	*/
[1057]	3792	pHlp->pfnPrintf(pHlp,
[2283]	3793	"VirtSync: %18RU64 (%#016RX64) %s%s",
[2611]	3794	u64VirtualSync, u64VirtualSync,
[1057]	3795	pVM->tm.s.fVirtualSyncTicking ? "ticking" : "paused",
	3796	pVM->tm.s.fVirtualSyncCatchUp ? " - catchup" : "");
[2283]	3797	if (pVM->tm.s.offVirtualSync)
	3798	{
	3799	pHlp->pfnPrintf(pHlp, "\n offset %RU64", pVM->tm.s.offVirtualSync);
	3800	if (pVM->tm.s.u32VirtualSyncCatchUpPercentage)
	3801	pHlp->pfnPrintf(pHlp, " catch-up rate %u %%", pVM->tm.s.u32VirtualSyncCatchUpPercentage);
	3802	}
[1057]	3803	pHlp->pfnPrintf(pHlp, "\n");
	3804
[2611]	3805	/*
	3806	* real
[2283]	3807	*/
[1057]	3808	pHlp->pfnPrintf(pHlp,
[2283]	3809	" Real: %18RU64 (%#016RX64) %RU64Hz\n",
	3810	u64Real, u64Real, TMRealGetFreq(pVM));
[1057]	3811	}
[2283]	3812
[53430]	3813
	3814	/**
[80157]	3815	* Helper for tmR3InfoCpuLoad that adjust @a uPct to the given graph width.
[80141]	3816	*/
[80157]	3817	DECLINLINE(size_t) tmR3InfoCpuLoadAdjustWidth(size_t uPct, size_t cchWidth)
[80141]	3818	{
[80157]	3819	if (cchWidth != 100)
	3820	uPct = (uPct + 0.5) * (cchWidth / 100.0);
	3821	return uPct;
	3822	}
	3823
	3824
	3825	/**
[80160]	3826	* @callback_method_impl{FNDBGFINFOARGVINT}
[80157]	3827	*/
	3828	static DECLCALLBACK(void) tmR3InfoCpuLoad(PVM pVM, PCDBGFINFOHLP pHlp, int cArgs, char **papszArgs)
	3829	{
	3830	char szTmp[1024];
	3831
[80141]	3832	/*
	3833	* Parse arguments.
	3834	*/
[80157]	3835	PTMCPULOADSTATE pState = &pVM->tm.s.CpuLoad;
[80159]	3836	VMCPUID idCpu = 0;
	3837	bool fAllCpus = true;
[80157]	3838	bool fExpGraph = true;
[80159]	3839	uint32_t cchWidth = 80;
[80157]	3840	uint32_t cPeriods = RT_ELEMENTS(pState->aHistory);
	3841	uint32_t cRows = 60;
[80141]	3842
[80157]	3843	static const RTGETOPTDEF s_aOptions[] =
	3844	{
[80159]	3845	{ "all", 'a', RTGETOPT_REQ_NOTHING },
[80157]	3846	{ "cpu", 'c', RTGETOPT_REQ_UINT32 },
	3847	{ "periods", 'p', RTGETOPT_REQ_UINT32 },
	3848	{ "rows", 'r', RTGETOPT_REQ_UINT32 },
[80159]	3849	{ "uni", 'u', RTGETOPT_REQ_NOTHING },
	3850	{ "uniform", 'u', RTGETOPT_REQ_NOTHING },
[80157]	3851	{ "width", 'w', RTGETOPT_REQ_UINT32 },
	3852	{ "exp", 'x', RTGETOPT_REQ_NOTHING },
	3853	{ "exponential", 'x', RTGETOPT_REQ_NOTHING },
	3854	};
[80141]	3855
[80157]	3856	RTGETOPTSTATE State;
[80159]	3857	int rc = RTGetOptInit(&State, cArgs, papszArgs, s_aOptions, RT_ELEMENTS(s_aOptions), 0, 0 /fFlags/);
[80157]	3858	AssertRC(rc);
[80141]	3859
[80157]	3860	RTGETOPTUNION ValueUnion;
	3861	while ((rc = RTGetOpt(&State, &ValueUnion)) != 0)
	3862	{
	3863	switch (rc)
	3864	{
[80159]	3865	case 'a':
[80191]	3866	pState = &pVM->apCpusR3[0]->tm.s.CpuLoad;
[80159]	3867	idCpu = 0;
	3868	fAllCpus = true;
	3869	break;
[80157]	3870	case 'c':
	3871	if (ValueUnion.u32 < pVM->cCpus)
	3872	{
[80191]	3873	pState = &pVM->apCpusR3[ValueUnion.u32]->tm.s.CpuLoad;
[80157]	3874	idCpu = ValueUnion.u32;
	3875	}
	3876	else
	3877	{
	3878	pState = &pVM->tm.s.CpuLoad;
	3879	idCpu = VMCPUID_ALL;
	3880	}
[80159]	3881	fAllCpus = false;
[80157]	3882	break;
	3883	case 'p':
	3884	cPeriods = RT_MIN(RT_MAX(ValueUnion.u32, 1), RT_ELEMENTS(pState->aHistory));
	3885	break;
[80159]	3886	case 'r':
	3887	cRows = RT_MIN(RT_MAX(ValueUnion.u32, 5), RT_ELEMENTS(pState->aHistory));
	3888	break;
[80157]	3889	case 'w':
	3890	cchWidth = RT_MIN(RT_MAX(ValueUnion.u32, 10), sizeof(szTmp) - 32);
	3891	break;
	3892	case 'x':
	3893	fExpGraph = true;
	3894	break;
[80159]	3895	case 'u':
[80157]	3896	fExpGraph = false;
	3897	break;
[80159]	3898	case 'h':
	3899	pHlp->pfnPrintf(pHlp,
	3900	"Usage: cpuload [parameters]\n"
	3901	" all, -a\n"
	3902	" Show statistics for all CPUs. (default)\n"
	3903	" cpu=id, -c id\n"
	3904	" Show statistics for the specified CPU ID. Show combined stats if out of range.\n"
	3905	" periods=count, -p count\n"
	3906	" Number of periods to show. Default: all\n"
	3907	" rows=count, -r count\n"
	3908	" Number of rows in the graphs. Default: 60\n"
	3909	" width=count, -w count\n"
	3910	" Core graph width in characters. Default: 80\n"
	3911	" exp, exponential, -e\n"
	3912	" Do 1:1 for more recent half / 30 seconds of the graph, combine the\n"
	3913	" rest into increasinly larger chunks. Default.\n"
	3914	" uniform, uni, -u\n"
	3915	" Combine periods into rows in a uniform manner for the whole graph.\n");
	3916	return;
[80157]	3917	default:
	3918	pHlp->pfnGetOptError(pHlp, rc, &ValueUnion, &State);
	3919	return;
	3920	}
	3921	}
	3922
[80141]	3923	/*
[80159]	3924	* Do the job.
[80141]	3925	*/
[80159]	3926	for (;;)
[80141]	3927	{
[80159]	3928	uint32_t const cMaxPeriods = pState->cHistoryEntries;
	3929	if (cPeriods > cMaxPeriods)
	3930	cPeriods = cMaxPeriods;
	3931	if (cPeriods > 0)
[80157]	3932	{
[80159]	3933	if (fAllCpus)
[80157]	3934	{
[80159]	3935	if (idCpu > 0)
	3936	pHlp->pfnPrintf(pHlp, "\n");
	3937	pHlp->pfnPrintf(pHlp, " CPU load for virtual CPU %#04x\n"
	3938	" -------------------------------\n", idCpu);
	3939	}
[80157]	3940
[80159]	3941	/*
	3942	* Figure number of periods per chunk. We can either do this in a linear
	3943	* fashion or a exponential fashion that compresses old history more.
	3944	*/
	3945	size_t cPerRowDecrement = 0;
	3946	size_t cPeriodsPerRow = 1;
	3947	if (cRows < cPeriods)
	3948	{
	3949	if (!fExpGraph)
	3950	cPeriodsPerRow = (cPeriods + cRows / 2) / cRows;
	3951	else
	3952	{
	3953	/* The last 30 seconds or half of the rows are 1:1, the other part
	3954	is in increasing period counts. Code is a little simple but seems
	3955	to do the job most of the time, which is all I have time now. */
	3956	size_t cPeriodsOneToOne = RT_MIN(30, cRows / 2);
	3957	size_t cRestRows = cRows - cPeriodsOneToOne;
	3958	size_t cRestPeriods = cPeriods - cPeriodsOneToOne;
[80157]	3959
[80159]	3960	size_t cPeriodsInWindow = 0;
	3961	for (cPeriodsPerRow = 0; cPeriodsPerRow <= cRestRows && cPeriodsInWindow < cRestPeriods; cPeriodsPerRow++)
	3962	cPeriodsInWindow += cPeriodsPerRow + 1;
	3963
	3964	size_t iLower = 1;
	3965	while (cPeriodsInWindow < cRestPeriods)
	3966	{
	3967	cPeriodsPerRow++;
	3968	cPeriodsInWindow += cPeriodsPerRow;
	3969	cPeriodsInWindow -= iLower;
	3970	iLower++;
	3971	}
	3972
	3973	cPerRowDecrement = 1;
[80157]	3974	}
	3975	}
	3976
[80159]	3977	/*
	3978	* Do the work.
	3979	*/
	3980	size_t cPctExecuting = 0;
	3981	size_t cPctOther = 0;
	3982	size_t cPeriodsAccumulated = 0;
[80157]	3983
[80159]	3984	size_t cRowsLeft = cRows;
	3985	size_t iHistory = (pState->idxHistory - cPeriods) % RT_ELEMENTS(pState->aHistory);
	3986	while (cPeriods-- > 0)
[80157]	3987	{
[80159]	3988	iHistory++;
	3989	if (iHistory >= RT_ELEMENTS(pState->aHistory))
	3990	iHistory = 0;
[80157]	3991
[80159]	3992	cPctExecuting += pState->aHistory[iHistory].cPctExecuting;
	3993	cPctOther += pState->aHistory[iHistory].cPctOther;
	3994	cPeriodsAccumulated += 1;
	3995	if ( cPeriodsAccumulated >= cPeriodsPerRow
	3996	\|\| cPeriods < cRowsLeft)
	3997	{
	3998	/*
	3999	* Format and output the line.
	4000	*/
	4001	size_t offTmp = 0;
	4002	size_t i = tmR3InfoCpuLoadAdjustWidth(cPctExecuting / cPeriodsAccumulated, cchWidth);
	4003	while (i-- > 0)
	4004	szTmp[offTmp++] = '#';
	4005	i = tmR3InfoCpuLoadAdjustWidth(cPctOther / cPeriodsAccumulated, cchWidth);
	4006	while (i-- > 0)
	4007	szTmp[offTmp++] = 'O';
	4008	szTmp[offTmp] = '\0';
[80157]	4009
[80159]	4010	cRowsLeft--;
	4011	pHlp->pfnPrintf(pHlp, "%3zus: %s\n", cPeriods + cPeriodsAccumulated / 2, szTmp);
	4012
	4013	/* Reset the state: */
	4014	cPctExecuting = 0;
	4015	cPctOther = 0;
	4016	cPeriodsAccumulated = 0;
	4017	if (cPeriodsPerRow > cPerRowDecrement)
	4018	cPeriodsPerRow -= cPerRowDecrement;
	4019	}
[80157]	4020	}
[80159]	4021	pHlp->pfnPrintf(pHlp, " (#=guest, O=VMM overhead) idCpu=%#x\n", idCpu);
	4022
[80141]	4023	}
[80159]	4024	else
	4025	pHlp->pfnPrintf(pHlp, "No load data.\n");
[80141]	4026
[80159]	4027	/*
	4028	* Next CPU if we're display all.
	4029	*/
	4030	if (!fAllCpus)
	4031	break;
	4032	idCpu++;
	4033	if (idCpu >= pVM->cCpus)
	4034	break;
[80191]	4035	pState = &pVM->apCpusR3[idCpu]->tm.s.CpuLoad;
[80141]	4036	}
[80159]	4037
[80141]	4038	}
	4039
	4040
	4041	/**
[54087]	4042	* Gets the descriptive TM TSC mode name given the enum value.
[53430]	4043	*
	4044	* @returns The name.
[58126]	4045	* @param enmMode The mode to name.
[53430]	4046	*/
[54087]	4047	static const char *tmR3GetTSCModeNameEx(TMTSCMODE enmMode)
[53430]	4048	{
[54087]	4049	switch (enmMode)
[53430]	4050	{
[53441]	4051	case TMTSCMODE_REAL_TSC_OFFSET: return "RealTscOffset";
	4052	case TMTSCMODE_VIRT_TSC_EMULATED: return "VirtTscEmulated";
	4053	case TMTSCMODE_DYNAMIC: return "Dynamic";
[72522]	4054	case TMTSCMODE_NATIVE_API: return "NativeApi";
[54065]	4055	default: return "???";
[53430]	4056	}
	4057	}
	4058
[54085]	4059
	4060	/**
[54087]	4061	* Gets the descriptive TM TSC mode name.
[54085]	4062	*
	4063	* @returns The name.
[58122]	4064	* @param pVM The cross context VM structure.
[54085]	4065	*/
[54087]	4066	static const char *tmR3GetTSCModeName(PVM pVM)
[54085]	4067	{
[54087]	4068	Assert(pVM);
	4069	return tmR3GetTSCModeNameEx(pVM->tm.s.enmTSCMode);
[54085]	4070	}
	4071

Note: See TracBrowser for help on using the repository browser.

Download in other formats:

© 2023 Oracle
Contact – Privacy policy – Terms of Use