| 1 | /* $Id: TM.cpp 51959 2014-07-09 15:18:00Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * TM - Time Manager.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2013 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | */
|
|---|
| 17 |
|
|---|
| 18 | /** @page pg_tm TM - The Time Manager
|
|---|
| 19 | *
|
|---|
| 20 | * The Time Manager abstracts the CPU clocks and manages timers used by the VMM,
|
|---|
| 21 | * device and drivers.
|
|---|
| 22 | *
|
|---|
| 23 | * @see grp_tm
|
|---|
| 24 | *
|
|---|
| 25 | *
|
|---|
| 26 | * @section sec_tm_clocks Clocks
|
|---|
| 27 | *
|
|---|
| 28 | * There are currently 4 clocks:
|
|---|
| 29 | * - Virtual (guest).
|
|---|
| 30 | * - Synchronous virtual (guest).
|
|---|
| 31 | * - CPU Tick (TSC) (guest). Only current use is rdtsc emulation. Usually a
|
|---|
| 32 | * function of the virtual clock.
|
|---|
| 33 | * - Real (host). This is only used for display updates atm.
|
|---|
| 34 | *
|
|---|
| 35 | * The most important clocks are the three first ones and of these the second is
|
|---|
| 36 | * the most interesting.
|
|---|
| 37 | *
|
|---|
| 38 | *
|
|---|
| 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 | *
|
|---|
| 67 | * @subsection subsec_tm_timesync Guest Time Sync / UTC time
|
|---|
| 68 | *
|
|---|
| 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.
|
|---|
| 72 | *
|
|---|
| 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.
|
|---|
| 82 | *
|
|---|
| 83 | *
|
|---|
| 84 | * @section sec_tm_timers Timers
|
|---|
| 85 | *
|
|---|
| 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
|
|---|
| 89 | * usual R0 vs R3 vs. RC thing. Then there are multiple threads, and then there
|
|---|
| 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
|
|---|
| 92 | * must be multithreaded. EMT will always run the timers.
|
|---|
| 93 | *
|
|---|
| 94 | * The design is using a doubly linked list of active timers which is ordered
|
|---|
| 95 | * by expire date. This list is only modified by the EMT thread. Updates to
|
|---|
| 96 | * the list are batched in a singly linked list, which is then processed by the
|
|---|
| 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.
|
|---|
| 100 | *
|
|---|
| 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.
|
|---|
| 107 | *
|
|---|
| 108 | *
|
|---|
| 109 | * @image html TMTIMER-Statechart-Diagram.gif
|
|---|
| 110 | *
|
|---|
| 111 | * @section sec_tm_timer Logging
|
|---|
| 112 | *
|
|---|
| 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.
|
|---|
| 116 | *
|
|---|
| 117 | */
|
|---|
| 118 |
|
|---|
| 119 | /*******************************************************************************
|
|---|
| 120 | * Header Files *
|
|---|
| 121 | *******************************************************************************/
|
|---|
| 122 | #define LOG_GROUP LOG_GROUP_TM
|
|---|
| 123 | #include <VBox/vmm/tm.h>
|
|---|
| 124 | #include <iprt/asm-amd64-x86.h> /* for SUPGetCpuHzFromGIP from sup.h */
|
|---|
| 125 | #include <VBox/vmm/vmm.h>
|
|---|
| 126 | #include <VBox/vmm/mm.h>
|
|---|
| 127 | #include <VBox/vmm/hm.h>
|
|---|
| 128 | #include <VBox/vmm/ssm.h>
|
|---|
| 129 | #include <VBox/vmm/dbgf.h>
|
|---|
| 130 | #include <VBox/vmm/dbgftrace.h>
|
|---|
| 131 | #ifdef VBOX_WITH_REM
|
|---|
| 132 | # include <VBox/vmm/rem.h>
|
|---|
| 133 | #endif
|
|---|
| 134 | #include <VBox/vmm/pdmapi.h>
|
|---|
| 135 | #include <VBox/vmm/iom.h>
|
|---|
| 136 | #include "TMInternal.h"
|
|---|
| 137 | #include <VBox/vmm/vm.h>
|
|---|
| 138 | #include <VBox/vmm/uvm.h>
|
|---|
| 139 |
|
|---|
| 140 | #include <VBox/vmm/pdmdev.h>
|
|---|
| 141 | #include <VBox/param.h>
|
|---|
| 142 | #include <VBox/err.h>
|
|---|
| 143 |
|
|---|
| 144 | #include <VBox/log.h>
|
|---|
| 145 | #include <iprt/asm.h>
|
|---|
| 146 | #include <iprt/asm-math.h>
|
|---|
| 147 | #include <iprt/assert.h>
|
|---|
| 148 | #include <iprt/thread.h>
|
|---|
| 149 | #include <iprt/time.h>
|
|---|
| 150 | #include <iprt/timer.h>
|
|---|
| 151 | #include <iprt/semaphore.h>
|
|---|
| 152 | #include <iprt/string.h>
|
|---|
| 153 | #include <iprt/env.h>
|
|---|
| 154 |
|
|---|
| 155 | #include "TMInline.h"
|
|---|
| 156 |
|
|---|
| 157 |
|
|---|
| 158 | /*******************************************************************************
|
|---|
| 159 | * Defined Constants And Macros *
|
|---|
| 160 | *******************************************************************************/
|
|---|
| 161 | /** The current saved state version.*/
|
|---|
| 162 | #define TM_SAVED_STATE_VERSION 3
|
|---|
| 163 |
|
|---|
| 164 |
|
|---|
| 165 | /*******************************************************************************
|
|---|
| 166 | * Internal Functions *
|
|---|
| 167 | *******************************************************************************/
|
|---|
| 168 | static bool tmR3HasFixedTSC(PVM pVM);
|
|---|
| 169 | static uint64_t tmR3CalibrateTSC(PVM pVM);
|
|---|
| 170 | static DECLCALLBACK(int) tmR3Save(PVM pVM, PSSMHANDLE pSSM);
|
|---|
| 171 | static DECLCALLBACK(int) tmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
|
|---|
| 172 | static DECLCALLBACK(void) tmR3TimerCallback(PRTTIMER pTimer, void *pvUser, uint64_t iTick);
|
|---|
| 173 | static void tmR3TimerQueueRun(PVM pVM, PTMTIMERQUEUE pQueue);
|
|---|
| 174 | static void tmR3TimerQueueRunVirtualSync(PVM pVM);
|
|---|
| 175 | static DECLCALLBACK(int) tmR3SetWarpDrive(PUVM pUVM, uint32_t u32Percent);
|
|---|
| 176 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 177 | static DECLCALLBACK(void) tmR3CpuLoadTimer(PVM pVM, PTMTIMER pTimer, void *pvUser);
|
|---|
| 178 | #endif
|
|---|
| 179 | static DECLCALLBACK(void) tmR3TimerInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
|
|---|
| 180 | static DECLCALLBACK(void) tmR3TimerInfoActive(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
|
|---|
| 181 | static DECLCALLBACK(void) tmR3InfoClocks(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
|
|---|
| 182 |
|
|---|
| 183 |
|
|---|
| 184 | /**
|
|---|
| 185 | * Initializes the TM.
|
|---|
| 186 | *
|
|---|
| 187 | * @returns VBox status code.
|
|---|
| 188 | * @param pVM Pointer to the VM.
|
|---|
| 189 | */
|
|---|
| 190 | VMM_INT_DECL(int) TMR3Init(PVM pVM)
|
|---|
| 191 | {
|
|---|
| 192 | LogFlow(("TMR3Init:\n"));
|
|---|
| 193 |
|
|---|
| 194 | /*
|
|---|
| 195 | * Assert alignment and sizes.
|
|---|
| 196 | */
|
|---|
| 197 | AssertCompileMemberAlignment(VM, tm.s, 32);
|
|---|
| 198 | AssertCompile(sizeof(pVM->tm.s) <= sizeof(pVM->tm.padding));
|
|---|
| 199 | AssertCompileMemberAlignment(TM, TimerCritSect, 8);
|
|---|
| 200 | AssertCompileMemberAlignment(TM, VirtualSyncLock, 8);
|
|---|
| 201 |
|
|---|
| 202 | /*
|
|---|
| 203 | * Init the structure.
|
|---|
| 204 | */
|
|---|
| 205 | void *pv;
|
|---|
| 206 | int rc = MMHyperAlloc(pVM, sizeof(pVM->tm.s.paTimerQueuesR3[0]) * TMCLOCK_MAX, 0, MM_TAG_TM, &pv);
|
|---|
| 207 | AssertRCReturn(rc, rc);
|
|---|
| 208 | pVM->tm.s.paTimerQueuesR3 = (PTMTIMERQUEUE)pv;
|
|---|
| 209 | pVM->tm.s.paTimerQueuesR0 = MMHyperR3ToR0(pVM, pv);
|
|---|
| 210 | pVM->tm.s.paTimerQueuesRC = MMHyperR3ToRC(pVM, pv);
|
|---|
| 211 |
|
|---|
| 212 | pVM->tm.s.offVM = RT_OFFSETOF(VM, tm.s);
|
|---|
| 213 | pVM->tm.s.idTimerCpu = pVM->cCpus - 1; /* The last CPU. */
|
|---|
| 214 | pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL].enmClock = TMCLOCK_VIRTUAL;
|
|---|
| 215 | pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL].u64Expire = INT64_MAX;
|
|---|
| 216 | pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL_SYNC].enmClock = TMCLOCK_VIRTUAL_SYNC;
|
|---|
| 217 | pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL_SYNC].u64Expire = INT64_MAX;
|
|---|
| 218 | pVM->tm.s.paTimerQueuesR3[TMCLOCK_REAL].enmClock = TMCLOCK_REAL;
|
|---|
| 219 | pVM->tm.s.paTimerQueuesR3[TMCLOCK_REAL].u64Expire = INT64_MAX;
|
|---|
| 220 | pVM->tm.s.paTimerQueuesR3[TMCLOCK_TSC].enmClock = TMCLOCK_TSC;
|
|---|
| 221 | pVM->tm.s.paTimerQueuesR3[TMCLOCK_TSC].u64Expire = INT64_MAX;
|
|---|
| 222 |
|
|---|
| 223 |
|
|---|
| 224 | /*
|
|---|
| 225 | * We directly use the GIP to calculate the virtual time. We map the
|
|---|
| 226 | * the GIP into the guest context so we can do this calculation there
|
|---|
| 227 | * as well and save costly world switches.
|
|---|
| 228 | */
|
|---|
| 229 | pVM->tm.s.pvGIPR3 = (void *)g_pSUPGlobalInfoPage;
|
|---|
| 230 | AssertMsgReturn(pVM->tm.s.pvGIPR3, ("GIP support is now required!\n"), VERR_TM_GIP_REQUIRED);
|
|---|
| 231 | AssertMsgReturn((g_pSUPGlobalInfoPage->u32Version >> 16) == (SUPGLOBALINFOPAGE_VERSION >> 16),
|
|---|
| 232 | ("Unsupported GIP version!\n"), VERR_TM_GIP_VERSION);
|
|---|
| 233 |
|
|---|
| 234 | RTHCPHYS HCPhysGIP;
|
|---|
| 235 | rc = SUPR3GipGetPhys(&HCPhysGIP);
|
|---|
| 236 | AssertMsgRCReturn(rc, ("Failed to get GIP physical address!\n"), rc);
|
|---|
| 237 |
|
|---|
| 238 | RTGCPTR GCPtr;
|
|---|
| 239 | #ifdef SUP_WITH_LOTS_OF_CPUS
|
|---|
| 240 | rc = MMR3HyperMapHCPhys(pVM, pVM->tm.s.pvGIPR3, NIL_RTR0PTR, HCPhysGIP, (size_t)g_pSUPGlobalInfoPage->cPages * PAGE_SIZE,
|
|---|
| 241 | "GIP", &GCPtr);
|
|---|
| 242 | #else
|
|---|
| 243 | rc = MMR3HyperMapHCPhys(pVM, pVM->tm.s.pvGIPR3, NIL_RTR0PTR, HCPhysGIP, PAGE_SIZE, "GIP", &GCPtr);
|
|---|
| 244 | #endif
|
|---|
| 245 | if (RT_FAILURE(rc))
|
|---|
| 246 | {
|
|---|
| 247 | AssertMsgFailed(("Failed to map GIP into GC, rc=%Rrc!\n", rc));
|
|---|
| 248 | return rc;
|
|---|
| 249 | }
|
|---|
| 250 | pVM->tm.s.pvGIPRC = GCPtr;
|
|---|
| 251 | LogFlow(("TMR3Init: HCPhysGIP=%RHp at %RRv\n", HCPhysGIP, pVM->tm.s.pvGIPRC));
|
|---|
| 252 | MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
|
|---|
| 253 |
|
|---|
| 254 | /* Check assumptions made in TMAllVirtual.cpp about the GIP update interval. */
|
|---|
| 255 | if ( g_pSUPGlobalInfoPage->u32Magic == SUPGLOBALINFOPAGE_MAGIC
|
|---|
| 256 | && g_pSUPGlobalInfoPage->u32UpdateIntervalNS >= 250000000 /* 0.25s */)
|
|---|
| 257 | return VMSetError(pVM, VERR_TM_GIP_UPDATE_INTERVAL_TOO_BIG, RT_SRC_POS,
|
|---|
| 258 | N_("The GIP update interval is too big. u32UpdateIntervalNS=%RU32 (u32UpdateHz=%RU32)"),
|
|---|
| 259 | g_pSUPGlobalInfoPage->u32UpdateIntervalNS, g_pSUPGlobalInfoPage->u32UpdateHz);
|
|---|
| 260 | LogRel(("TM: GIP - u32Mode=%d (%s) u32UpdateHz=%u\n", g_pSUPGlobalInfoPage->u32Mode,
|
|---|
| 261 | g_pSUPGlobalInfoPage->u32Mode == SUPGIPMODE_SYNC_TSC ? "SyncTSC"
|
|---|
| 262 | : g_pSUPGlobalInfoPage->u32Mode == SUPGIPMODE_ASYNC_TSC ? "AsyncTSC" : "Unknown",
|
|---|
| 263 | g_pSUPGlobalInfoPage->u32UpdateHz));
|
|---|
| 264 |
|
|---|
| 265 | /*
|
|---|
| 266 | * Setup the VirtualGetRaw backend.
|
|---|
| 267 | */
|
|---|
| 268 | pVM->tm.s.VirtualGetRawDataR3.pu64Prev = &pVM->tm.s.u64VirtualRawPrev;
|
|---|
| 269 | pVM->tm.s.VirtualGetRawDataR3.pfnBad = tmVirtualNanoTSBad;
|
|---|
| 270 | pVM->tm.s.VirtualGetRawDataR3.pfnRediscover = tmVirtualNanoTSRediscover;
|
|---|
| 271 | if (ASMCpuId_EDX(1) & X86_CPUID_FEATURE_EDX_SSE2)
|
|---|
| 272 | {
|
|---|
| 273 | if (g_pSUPGlobalInfoPage->u32Mode == SUPGIPMODE_SYNC_TSC)
|
|---|
| 274 | pVM->tm.s.pfnVirtualGetRawR3 = RTTimeNanoTSLFenceSync;
|
|---|
| 275 | else
|
|---|
| 276 | pVM->tm.s.pfnVirtualGetRawR3 = RTTimeNanoTSLFenceAsync;
|
|---|
| 277 | }
|
|---|
| 278 | else
|
|---|
| 279 | {
|
|---|
| 280 | if (g_pSUPGlobalInfoPage->u32Mode == SUPGIPMODE_SYNC_TSC)
|
|---|
| 281 | pVM->tm.s.pfnVirtualGetRawR3 = RTTimeNanoTSLegacySync;
|
|---|
| 282 | else
|
|---|
| 283 | pVM->tm.s.pfnVirtualGetRawR3 = RTTimeNanoTSLegacyAsync;
|
|---|
| 284 | }
|
|---|
| 285 |
|
|---|
| 286 | pVM->tm.s.VirtualGetRawDataRC.pu64Prev = MMHyperR3ToRC(pVM, (void *)&pVM->tm.s.u64VirtualRawPrev);
|
|---|
| 287 | pVM->tm.s.VirtualGetRawDataR0.pu64Prev = MMHyperR3ToR0(pVM, (void *)&pVM->tm.s.u64VirtualRawPrev);
|
|---|
| 288 | AssertRelease(pVM->tm.s.VirtualGetRawDataR0.pu64Prev);
|
|---|
| 289 | /* The rest is done in TMR3InitFinalize since it's too early to call PDM. */
|
|---|
| 290 |
|
|---|
| 291 | /*
|
|---|
| 292 | * Init the locks.
|
|---|
| 293 | */
|
|---|
| 294 | rc = PDMR3CritSectInit(pVM, &pVM->tm.s.TimerCritSect, RT_SRC_POS, "TM Timer Lock");
|
|---|
| 295 | if (RT_FAILURE(rc))
|
|---|
| 296 | return rc;
|
|---|
| 297 | rc = PDMR3CritSectInit(pVM, &pVM->tm.s.VirtualSyncLock, RT_SRC_POS, "TM VirtualSync Lock");
|
|---|
| 298 | if (RT_FAILURE(rc))
|
|---|
| 299 | return rc;
|
|---|
| 300 |
|
|---|
| 301 | /*
|
|---|
| 302 | * Get our CFGM node, create it if necessary.
|
|---|
| 303 | */
|
|---|
| 304 | PCFGMNODE pCfgHandle = CFGMR3GetChild(CFGMR3GetRoot(pVM), "TM");
|
|---|
| 305 | if (!pCfgHandle)
|
|---|
| 306 | {
|
|---|
| 307 | rc = CFGMR3InsertNode(CFGMR3GetRoot(pVM), "TM", &pCfgHandle);
|
|---|
| 308 | AssertRCReturn(rc, rc);
|
|---|
| 309 | }
|
|---|
| 310 |
|
|---|
| 311 | /*
|
|---|
| 312 | * Determine the TSC configuration and frequency.
|
|---|
| 313 | */
|
|---|
| 314 | /* mode */
|
|---|
| 315 | /** @cfgm{/TM/TSCVirtualized,bool,true}
|
|---|
| 316 | * Use a virtualize TSC, i.e. trap all TSC access. */
|
|---|
| 317 | rc = CFGMR3QueryBool(pCfgHandle, "TSCVirtualized", &pVM->tm.s.fTSCVirtualized);
|
|---|
| 318 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 319 | pVM->tm.s.fTSCVirtualized = true; /* trap rdtsc */
|
|---|
| 320 | else if (RT_FAILURE(rc))
|
|---|
| 321 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 322 | N_("Configuration error: Failed to querying bool value \"UseRealTSC\""));
|
|---|
| 323 |
|
|---|
| 324 | /* source */
|
|---|
| 325 | /** @cfgm{/TM/UseRealTSC,bool,false}
|
|---|
| 326 | * Use the real TSC as time source for the TSC instead of the synchronous
|
|---|
| 327 | * virtual clock (false, default). */
|
|---|
| 328 | rc = CFGMR3QueryBool(pCfgHandle, "UseRealTSC", &pVM->tm.s.fTSCUseRealTSC);
|
|---|
| 329 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 330 | pVM->tm.s.fTSCUseRealTSC = false; /* use virtual time */
|
|---|
| 331 | else if (RT_FAILURE(rc))
|
|---|
| 332 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 333 | N_("Configuration error: Failed to querying bool value \"UseRealTSC\""));
|
|---|
| 334 | if (!pVM->tm.s.fTSCUseRealTSC)
|
|---|
| 335 | pVM->tm.s.fTSCVirtualized = true;
|
|---|
| 336 |
|
|---|
| 337 | /* TSC reliability */
|
|---|
| 338 | /** @cfgm{/TM/MaybeUseOffsettedHostTSC,bool,detect}
|
|---|
| 339 | * Whether the CPU has a fixed TSC rate and may be used in offsetted mode with
|
|---|
| 340 | * VT-x/AMD-V execution. This is autodetected in a very restrictive way by
|
|---|
| 341 | * default. */
|
|---|
| 342 | rc = CFGMR3QueryBool(pCfgHandle, "MaybeUseOffsettedHostTSC", &pVM->tm.s.fMaybeUseOffsettedHostTSC);
|
|---|
| 343 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 344 | {
|
|---|
| 345 | if (!pVM->tm.s.fTSCUseRealTSC)
|
|---|
| 346 | pVM->tm.s.fMaybeUseOffsettedHostTSC = tmR3HasFixedTSC(pVM);
|
|---|
| 347 | else
|
|---|
| 348 | pVM->tm.s.fMaybeUseOffsettedHostTSC = true;
|
|---|
| 349 | /** @todo needs a better fix, for now disable offsetted mode for VMs
|
|---|
| 350 | * with more than one VCPU. With the current TSC handling (frequent
|
|---|
| 351 | * switching between offsetted mode and taking VM exits, on all VCPUs
|
|---|
| 352 | * without any kind of coordination) it will lead to inconsistent TSC
|
|---|
| 353 | * behavior with guest SMP, including TSC going backwards. */
|
|---|
| 354 | if (pVM->cCpus != 1)
|
|---|
| 355 | pVM->tm.s.fMaybeUseOffsettedHostTSC = false;
|
|---|
| 356 | }
|
|---|
| 357 |
|
|---|
| 358 | /** @cfgm{TM/TSCTicksPerSecond, uint32_t, Current TSC frequency from GIP}
|
|---|
| 359 | * The number of TSC ticks per second (i.e. the TSC frequency). This will
|
|---|
| 360 | * override TSCUseRealTSC, TSCVirtualized and MaybeUseOffsettedHostTSC.
|
|---|
| 361 | */
|
|---|
| 362 | rc = CFGMR3QueryU64(pCfgHandle, "TSCTicksPerSecond", &pVM->tm.s.cTSCTicksPerSecond);
|
|---|
| 363 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 364 | {
|
|---|
| 365 | pVM->tm.s.cTSCTicksPerSecond = tmR3CalibrateTSC(pVM);
|
|---|
| 366 | if ( !pVM->tm.s.fTSCUseRealTSC
|
|---|
| 367 | && pVM->tm.s.cTSCTicksPerSecond >= _4G)
|
|---|
| 368 | {
|
|---|
| 369 | pVM->tm.s.cTSCTicksPerSecond = _4G - 1; /* (A limitation of our math code) */
|
|---|
| 370 | pVM->tm.s.fMaybeUseOffsettedHostTSC = false;
|
|---|
| 371 | }
|
|---|
| 372 | }
|
|---|
| 373 | else if (RT_FAILURE(rc))
|
|---|
| 374 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 375 | N_("Configuration error: Failed to querying uint64_t value \"TSCTicksPerSecond\""));
|
|---|
| 376 | else if ( pVM->tm.s.cTSCTicksPerSecond < _1M
|
|---|
| 377 | || pVM->tm.s.cTSCTicksPerSecond >= _4G)
|
|---|
| 378 | return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS,
|
|---|
| 379 | N_("Configuration error: \"TSCTicksPerSecond\" = %RI64 is not in the range 1MHz..4GHz-1"),
|
|---|
| 380 | pVM->tm.s.cTSCTicksPerSecond);
|
|---|
| 381 | else
|
|---|
| 382 | {
|
|---|
| 383 | pVM->tm.s.fTSCUseRealTSC = pVM->tm.s.fMaybeUseOffsettedHostTSC = false;
|
|---|
| 384 | pVM->tm.s.fTSCVirtualized = true;
|
|---|
| 385 | }
|
|---|
| 386 |
|
|---|
| 387 | /** @cfgm{TM/TSCTiedToExecution, bool, false}
|
|---|
| 388 | * Whether the TSC should be tied to execution. This will exclude most of the
|
|---|
| 389 | * virtualization overhead, but will by default include the time spent in the
|
|---|
| 390 | * halt state (see TM/TSCNotTiedToHalt). This setting will override all other
|
|---|
| 391 | * TSC settings except for TSCTicksPerSecond and TSCNotTiedToHalt, which should
|
|---|
| 392 | * be used avoided or used with great care. Note that this will only work right
|
|---|
| 393 | * together with VT-x or AMD-V, and with a single virtual CPU. */
|
|---|
| 394 | rc = CFGMR3QueryBoolDef(pCfgHandle, "TSCTiedToExecution", &pVM->tm.s.fTSCTiedToExecution, false);
|
|---|
| 395 | if (RT_FAILURE(rc))
|
|---|
| 396 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 397 | N_("Configuration error: Failed to querying bool value \"TSCTiedToExecution\""));
|
|---|
| 398 | if (pVM->tm.s.fTSCTiedToExecution)
|
|---|
| 399 | {
|
|---|
| 400 | /* tied to execution, override all other settings. */
|
|---|
| 401 | pVM->tm.s.fTSCVirtualized = true;
|
|---|
| 402 | pVM->tm.s.fTSCUseRealTSC = true;
|
|---|
| 403 | pVM->tm.s.fMaybeUseOffsettedHostTSC = false;
|
|---|
| 404 | }
|
|---|
| 405 |
|
|---|
| 406 | /** @cfgm{TM/TSCNotTiedToHalt, bool, true}
|
|---|
| 407 | * For overriding the default of TM/TSCTiedToExecution, i.e. set this to false
|
|---|
| 408 | * to make the TSC freeze during HLT. */
|
|---|
| 409 | rc = CFGMR3QueryBoolDef(pCfgHandle, "TSCNotTiedToHalt", &pVM->tm.s.fTSCNotTiedToHalt, false);
|
|---|
| 410 | if (RT_FAILURE(rc))
|
|---|
| 411 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 412 | N_("Configuration error: Failed to querying bool value \"TSCNotTiedToHalt\""));
|
|---|
| 413 |
|
|---|
| 414 | /* setup and report */
|
|---|
| 415 | if (pVM->tm.s.fTSCVirtualized)
|
|---|
| 416 | CPUMR3SetCR4Feature(pVM, X86_CR4_TSD, ~X86_CR4_TSD);
|
|---|
| 417 | else
|
|---|
| 418 | CPUMR3SetCR4Feature(pVM, 0, ~X86_CR4_TSD);
|
|---|
| 419 | LogRel(("TM: cTSCTicksPerSecond=%#RX64 (%'RU64) fTSCVirtualized=%RTbool fTSCUseRealTSC=%RTbool\n"
|
|---|
| 420 | "TM: fMaybeUseOffsettedHostTSC=%RTbool TSCTiedToExecution=%RTbool TSCNotTiedToHalt=%RTbool\n",
|
|---|
| 421 | pVM->tm.s.cTSCTicksPerSecond, pVM->tm.s.cTSCTicksPerSecond, pVM->tm.s.fTSCVirtualized, pVM->tm.s.fTSCUseRealTSC,
|
|---|
| 422 | pVM->tm.s.fMaybeUseOffsettedHostTSC, pVM->tm.s.fTSCTiedToExecution, pVM->tm.s.fTSCNotTiedToHalt));
|
|---|
| 423 |
|
|---|
| 424 | /*
|
|---|
| 425 | * Configure the timer synchronous virtual time.
|
|---|
| 426 | */
|
|---|
| 427 | /** @cfgm{TM/ScheduleSlack, uint32_t, ns, 0, UINT32_MAX, 100000}
|
|---|
| 428 | * Scheduling slack when processing timers. */
|
|---|
| 429 | rc = CFGMR3QueryU32(pCfgHandle, "ScheduleSlack", &pVM->tm.s.u32VirtualSyncScheduleSlack);
|
|---|
| 430 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 431 | pVM->tm.s.u32VirtualSyncScheduleSlack = 100000; /* 0.100ms (ASSUMES virtual time is nanoseconds) */
|
|---|
| 432 | else if (RT_FAILURE(rc))
|
|---|
| 433 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 434 | N_("Configuration error: Failed to querying 32-bit integer value \"ScheduleSlack\""));
|
|---|
| 435 |
|
|---|
| 436 | /** @cfgm{TM/CatchUpStopThreshold, uint64_t, ns, 0, UINT64_MAX, 500000}
|
|---|
| 437 | * When to stop a catch-up, considering it successful. */
|
|---|
| 438 | rc = CFGMR3QueryU64(pCfgHandle, "CatchUpStopThreshold", &pVM->tm.s.u64VirtualSyncCatchUpStopThreshold);
|
|---|
| 439 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 440 | pVM->tm.s.u64VirtualSyncCatchUpStopThreshold = 500000; /* 0.5ms */
|
|---|
| 441 | else if (RT_FAILURE(rc))
|
|---|
| 442 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 443 | N_("Configuration error: Failed to querying 64-bit integer value \"CatchUpStopThreshold\""));
|
|---|
| 444 |
|
|---|
| 445 | /** @cfgm{TM/CatchUpGiveUpThreshold, uint64_t, ns, 0, UINT64_MAX, 60000000000}
|
|---|
| 446 | * When to give up a catch-up attempt. */
|
|---|
| 447 | rc = CFGMR3QueryU64(pCfgHandle, "CatchUpGiveUpThreshold", &pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold);
|
|---|
| 448 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 449 | pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold = UINT64_C(60000000000); /* 60 sec */
|
|---|
| 450 | else if (RT_FAILURE(rc))
|
|---|
| 451 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 452 | N_("Configuration error: Failed to querying 64-bit integer value \"CatchUpGiveUpThreshold\""));
|
|---|
| 453 |
|
|---|
| 454 |
|
|---|
| 455 | /** @cfgm{TM/CatchUpPrecentage[0..9], uint32_t, %, 1, 2000, various}
|
|---|
| 456 | * The catch-up percent for a given period. */
|
|---|
| 457 | /** @cfgm{TM/CatchUpStartThreshold[0..9], uint64_t, ns, 0, UINT64_MAX}
|
|---|
| 458 | * The catch-up period threshold, or if you like, when a period starts. */
|
|---|
| 459 | #define TM_CFG_PERIOD(iPeriod, DefStart, DefPct) \
|
|---|
| 460 | do \
|
|---|
| 461 | { \
|
|---|
| 462 | uint64_t u64; \
|
|---|
| 463 | rc = CFGMR3QueryU64(pCfgHandle, "CatchUpStartThreshold" #iPeriod, &u64); \
|
|---|
| 464 | if (rc == VERR_CFGM_VALUE_NOT_FOUND) \
|
|---|
| 465 | u64 = UINT64_C(DefStart); \
|
|---|
| 466 | else if (RT_FAILURE(rc)) \
|
|---|
| 467 | return VMSetError(pVM, rc, RT_SRC_POS, N_("Configuration error: Failed to querying 64-bit integer value \"CatchUpThreshold" #iPeriod "\"")); \
|
|---|
| 468 | if ( (iPeriod > 0 && u64 <= pVM->tm.s.aVirtualSyncCatchUpPeriods[iPeriod - 1].u64Start) \
|
|---|
| 469 | || u64 >= pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold) \
|
|---|
| 470 | return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS, N_("Configuration error: Invalid start of period #" #iPeriod ": %'RU64"), u64); \
|
|---|
| 471 | pVM->tm.s.aVirtualSyncCatchUpPeriods[iPeriod].u64Start = u64; \
|
|---|
| 472 | rc = CFGMR3QueryU32(pCfgHandle, "CatchUpPrecentage" #iPeriod, &pVM->tm.s.aVirtualSyncCatchUpPeriods[iPeriod].u32Percentage); \
|
|---|
| 473 | if (rc == VERR_CFGM_VALUE_NOT_FOUND) \
|
|---|
| 474 | pVM->tm.s.aVirtualSyncCatchUpPeriods[iPeriod].u32Percentage = (DefPct); \
|
|---|
| 475 | else if (RT_FAILURE(rc)) \
|
|---|
| 476 | return VMSetError(pVM, rc, RT_SRC_POS, N_("Configuration error: Failed to querying 32-bit integer value \"CatchUpPrecentage" #iPeriod "\"")); \
|
|---|
| 477 | } while (0)
|
|---|
| 478 | /* This needs more tuning. Not sure if we really need so many period and be so gentle. */
|
|---|
| 479 | TM_CFG_PERIOD(0, 750000, 5); /* 0.75ms at 1.05x */
|
|---|
| 480 | TM_CFG_PERIOD(1, 1500000, 10); /* 1.50ms at 1.10x */
|
|---|
| 481 | TM_CFG_PERIOD(2, 8000000, 25); /* 8ms at 1.25x */
|
|---|
| 482 | TM_CFG_PERIOD(3, 30000000, 50); /* 30ms at 1.50x */
|
|---|
| 483 | TM_CFG_PERIOD(4, 75000000, 75); /* 75ms at 1.75x */
|
|---|
| 484 | TM_CFG_PERIOD(5, 175000000, 100); /* 175ms at 2x */
|
|---|
| 485 | TM_CFG_PERIOD(6, 500000000, 200); /* 500ms at 3x */
|
|---|
| 486 | TM_CFG_PERIOD(7, 3000000000, 300); /* 3s at 4x */
|
|---|
| 487 | TM_CFG_PERIOD(8,30000000000, 400); /* 30s at 5x */
|
|---|
| 488 | TM_CFG_PERIOD(9,55000000000, 500); /* 55s at 6x */
|
|---|
| 489 | AssertCompile(RT_ELEMENTS(pVM->tm.s.aVirtualSyncCatchUpPeriods) == 10);
|
|---|
| 490 | #undef TM_CFG_PERIOD
|
|---|
| 491 |
|
|---|
| 492 | /*
|
|---|
| 493 | * Configure real world time (UTC).
|
|---|
| 494 | */
|
|---|
| 495 | /** @cfgm{TM/UTCOffset, int64_t, ns, INT64_MIN, INT64_MAX, 0}
|
|---|
| 496 | * The UTC offset. This is used to put the guest back or forwards in time. */
|
|---|
| 497 | rc = CFGMR3QueryS64(pCfgHandle, "UTCOffset", &pVM->tm.s.offUTC);
|
|---|
| 498 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 499 | pVM->tm.s.offUTC = 0; /* ns */
|
|---|
| 500 | else if (RT_FAILURE(rc))
|
|---|
| 501 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 502 | N_("Configuration error: Failed to querying 64-bit integer value \"UTCOffset\""));
|
|---|
| 503 |
|
|---|
| 504 | /*
|
|---|
| 505 | * Setup the warp drive.
|
|---|
| 506 | */
|
|---|
| 507 | /** @cfgm{TM/WarpDrivePercentage, uint32_t, %, 0, 20000, 100}
|
|---|
| 508 | * The warp drive percentage, 100% is normal speed. This is used to speed up
|
|---|
| 509 | * or slow down the virtual clock, which can be useful for fast forwarding
|
|---|
| 510 | * borring periods during tests. */
|
|---|
| 511 | rc = CFGMR3QueryU32(pCfgHandle, "WarpDrivePercentage", &pVM->tm.s.u32VirtualWarpDrivePercentage);
|
|---|
| 512 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 513 | rc = CFGMR3QueryU32(CFGMR3GetRoot(pVM), "WarpDrivePercentage", &pVM->tm.s.u32VirtualWarpDrivePercentage); /* legacy */
|
|---|
| 514 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 515 | pVM->tm.s.u32VirtualWarpDrivePercentage = 100;
|
|---|
| 516 | else if (RT_FAILURE(rc))
|
|---|
| 517 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 518 | N_("Configuration error: Failed to querying uint32_t value \"WarpDrivePercent\""));
|
|---|
| 519 | else if ( pVM->tm.s.u32VirtualWarpDrivePercentage < 2
|
|---|
| 520 | || pVM->tm.s.u32VirtualWarpDrivePercentage > 20000)
|
|---|
| 521 | return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS,
|
|---|
| 522 | N_("Configuration error: \"WarpDrivePercent\" = %RI32 is not in the range 2..20000"),
|
|---|
| 523 | pVM->tm.s.u32VirtualWarpDrivePercentage);
|
|---|
| 524 | pVM->tm.s.fVirtualWarpDrive = pVM->tm.s.u32VirtualWarpDrivePercentage != 100;
|
|---|
| 525 | if (pVM->tm.s.fVirtualWarpDrive)
|
|---|
| 526 | LogRel(("TM: u32VirtualWarpDrivePercentage=%RI32\n", pVM->tm.s.u32VirtualWarpDrivePercentage));
|
|---|
| 527 |
|
|---|
| 528 | /*
|
|---|
| 529 | * Gather the Host Hz configuration values.
|
|---|
| 530 | */
|
|---|
| 531 | rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzMax", &pVM->tm.s.cHostHzMax, 20000);
|
|---|
| 532 | if (RT_FAILURE(rc))
|
|---|
| 533 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 534 | N_("Configuration error: Failed to querying uint32_t value \"HostHzMax\""));
|
|---|
| 535 |
|
|---|
| 536 | rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorTimerCpu", &pVM->tm.s.cPctHostHzFudgeFactorTimerCpu, 111);
|
|---|
| 537 | if (RT_FAILURE(rc))
|
|---|
| 538 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 539 | N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorTimerCpu\""));
|
|---|
| 540 |
|
|---|
| 541 | rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorOtherCpu", &pVM->tm.s.cPctHostHzFudgeFactorOtherCpu, 110);
|
|---|
| 542 | if (RT_FAILURE(rc))
|
|---|
| 543 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 544 | N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorOtherCpu\""));
|
|---|
| 545 |
|
|---|
| 546 | rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorCatchUp100", &pVM->tm.s.cPctHostHzFudgeFactorCatchUp100, 300);
|
|---|
| 547 | if (RT_FAILURE(rc))
|
|---|
| 548 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 549 | N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorCatchUp100\""));
|
|---|
| 550 |
|
|---|
| 551 | rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorCatchUp200", &pVM->tm.s.cPctHostHzFudgeFactorCatchUp200, 250);
|
|---|
| 552 | if (RT_FAILURE(rc))
|
|---|
| 553 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 554 | N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorCatchUp200\""));
|
|---|
| 555 |
|
|---|
| 556 | rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorCatchUp400", &pVM->tm.s.cPctHostHzFudgeFactorCatchUp400, 200);
|
|---|
| 557 | if (RT_FAILURE(rc))
|
|---|
| 558 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 559 | N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorCatchUp400\""));
|
|---|
| 560 |
|
|---|
| 561 | /*
|
|---|
| 562 | * Start the timer (guard against REM not yielding).
|
|---|
| 563 | */
|
|---|
| 564 | /** @cfgm{TM/TimerMillies, uint32_t, ms, 1, 1000, 10}
|
|---|
| 565 | * The watchdog timer interval. */
|
|---|
| 566 | uint32_t u32Millies;
|
|---|
| 567 | rc = CFGMR3QueryU32(pCfgHandle, "TimerMillies", &u32Millies);
|
|---|
| 568 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 569 | u32Millies = 10;
|
|---|
| 570 | else if (RT_FAILURE(rc))
|
|---|
| 571 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 572 | N_("Configuration error: Failed to query uint32_t value \"TimerMillies\""));
|
|---|
| 573 | rc = RTTimerCreate(&pVM->tm.s.pTimer, u32Millies, tmR3TimerCallback, pVM);
|
|---|
| 574 | if (RT_FAILURE(rc))
|
|---|
| 575 | {
|
|---|
| 576 | AssertMsgFailed(("Failed to create timer, u32Millies=%d rc=%Rrc.\n", u32Millies, rc));
|
|---|
| 577 | return rc;
|
|---|
| 578 | }
|
|---|
| 579 | Log(("TM: Created timer %p firing every %d milliseconds\n", pVM->tm.s.pTimer, u32Millies));
|
|---|
| 580 | pVM->tm.s.u32TimerMillies = u32Millies;
|
|---|
| 581 |
|
|---|
| 582 | /*
|
|---|
| 583 | * Register saved state.
|
|---|
| 584 | */
|
|---|
| 585 | rc = SSMR3RegisterInternal(pVM, "tm", 1, TM_SAVED_STATE_VERSION, sizeof(uint64_t) * 8,
|
|---|
| 586 | NULL, NULL, NULL,
|
|---|
| 587 | NULL, tmR3Save, NULL,
|
|---|
| 588 | NULL, tmR3Load, NULL);
|
|---|
| 589 | if (RT_FAILURE(rc))
|
|---|
| 590 | return rc;
|
|---|
| 591 |
|
|---|
| 592 | /*
|
|---|
| 593 | * Register statistics.
|
|---|
| 594 | */
|
|---|
| 595 | 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).");
|
|---|
| 596 | 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).");
|
|---|
| 597 | 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).");
|
|---|
| 598 | 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).");
|
|---|
| 599 | 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).");
|
|---|
| 600 | 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).");
|
|---|
| 601 | 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)");
|
|---|
| 602 | 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.");
|
|---|
| 603 | STAM_REL_REG( pVM,(void*)&pVM->tm.s.uMaxHzHint, STAMTYPE_U32, "/TM/MaxHzHint", STAMUNIT_HZ, "Max guest timer frequency hint.");
|
|---|
| 604 |
|
|---|
| 605 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 606 | 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).");
|
|---|
| 607 | STAM_REG_USED(pVM,(void *)&pVM->tm.s.VirtualGetRawDataR3.cUpdateRaces,STAMTYPE_U32, "/TM/R3/cUpdateRaces", STAMUNIT_OCCURENCES, "Thread races when updating the previous timestamp.");
|
|---|
| 608 | 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).");
|
|---|
| 609 | STAM_REG_USED(pVM,(void *)&pVM->tm.s.VirtualGetRawDataR0.cUpdateRaces,STAMTYPE_U32, "/TM/R0/cUpdateRaces", STAMUNIT_OCCURENCES, "Thread races when updating the previous timestamp.");
|
|---|
| 610 | 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).");
|
|---|
| 611 | STAM_REG_USED(pVM,(void *)&pVM->tm.s.VirtualGetRawDataRC.cUpdateRaces,STAMTYPE_U32, "/TM/RC/cUpdateRaces", STAMUNIT_OCCURENCES, "Thread races when updating the previous timestamp.");
|
|---|
| 612 | STAM_REG(pVM, &pVM->tm.s.StatDoQueues, STAMTYPE_PROFILE, "/TM/DoQueues", STAMUNIT_TICKS_PER_CALL, "Profiling timer TMR3TimerQueuesDo.");
|
|---|
| 613 | 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.");
|
|---|
| 614 | 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.");
|
|---|
| 615 | 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.");
|
|---|
| 616 |
|
|---|
| 617 | STAM_REG(pVM, &pVM->tm.s.StatPoll, STAMTYPE_COUNTER, "/TM/Poll", STAMUNIT_OCCURENCES, "TMTimerPoll calls.");
|
|---|
| 618 | STAM_REG(pVM, &pVM->tm.s.StatPollAlreadySet, STAMTYPE_COUNTER, "/TM/Poll/AlreadySet", STAMUNIT_OCCURENCES, "TMTimerPoll calls where the FF was already set.");
|
|---|
| 619 | 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.");
|
|---|
| 620 | STAM_REG(pVM, &pVM->tm.s.StatPollMiss, STAMTYPE_COUNTER, "/TM/Poll/Miss", STAMUNIT_OCCURENCES, "TMTimerPoll calls where nothing had expired.");
|
|---|
| 621 | STAM_REG(pVM, &pVM->tm.s.StatPollRunning, STAMTYPE_COUNTER, "/TM/Poll/Running", STAMUNIT_OCCURENCES, "TMTimerPoll calls where the queues were being run.");
|
|---|
| 622 | STAM_REG(pVM, &pVM->tm.s.StatPollSimple, STAMTYPE_COUNTER, "/TM/Poll/Simple", STAMUNIT_OCCURENCES, "TMTimerPoll calls where we could take the simple path.");
|
|---|
| 623 | 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.");
|
|---|
| 624 | 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.");
|
|---|
| 625 |
|
|---|
| 626 | STAM_REG(pVM, &pVM->tm.s.StatPostponedR3, STAMTYPE_COUNTER, "/TM/PostponedR3", STAMUNIT_OCCURENCES, "Postponed due to unschedulable state, in ring-3.");
|
|---|
| 627 | STAM_REG(pVM, &pVM->tm.s.StatPostponedRZ, STAMTYPE_COUNTER, "/TM/PostponedRZ", STAMUNIT_OCCURENCES, "Postponed due to unschedulable state, in ring-0 / RC.");
|
|---|
| 628 |
|
|---|
| 629 | 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.");
|
|---|
| 630 | 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.");
|
|---|
| 631 | 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.");
|
|---|
| 632 |
|
|---|
| 633 | STAM_REG(pVM, &pVM->tm.s.StatTimerSet, STAMTYPE_COUNTER, "/TM/TimerSet", STAMUNIT_OCCURENCES, "Calls, except virtual sync timers");
|
|---|
| 634 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetOpt, STAMTYPE_COUNTER, "/TM/TimerSet/Opt", STAMUNIT_OCCURENCES, "Optimized path taken.");
|
|---|
| 635 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetR3, STAMTYPE_PROFILE, "/TM/TimerSet/R3", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerSet calls made in ring-3.");
|
|---|
| 636 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRZ, STAMTYPE_PROFILE, "/TM/TimerSet/RZ", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerSet calls made in ring-0 / RC.");
|
|---|
| 637 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStActive, STAMTYPE_COUNTER, "/TM/TimerSet/StActive", STAMUNIT_OCCURENCES, "ACTIVE");
|
|---|
| 638 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStExpDeliver, STAMTYPE_COUNTER, "/TM/TimerSet/StExpDeliver", STAMUNIT_OCCURENCES, "EXPIRED_DELIVER");
|
|---|
| 639 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStOther, STAMTYPE_COUNTER, "/TM/TimerSet/StOther", STAMUNIT_OCCURENCES, "Other states");
|
|---|
| 640 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStPendStop, STAMTYPE_COUNTER, "/TM/TimerSet/StPendStop", STAMUNIT_OCCURENCES, "PENDING_STOP");
|
|---|
| 641 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStPendStopSched, STAMTYPE_COUNTER, "/TM/TimerSet/StPendStopSched", STAMUNIT_OCCURENCES, "PENDING_STOP_SCHEDULE");
|
|---|
| 642 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStPendSched, STAMTYPE_COUNTER, "/TM/TimerSet/StPendSched", STAMUNIT_OCCURENCES, "PENDING_SCHEDULE");
|
|---|
| 643 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStPendResched, STAMTYPE_COUNTER, "/TM/TimerSet/StPendResched", STAMUNIT_OCCURENCES, "PENDING_RESCHEDULE");
|
|---|
| 644 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStStopped, STAMTYPE_COUNTER, "/TM/TimerSet/StStopped", STAMUNIT_OCCURENCES, "STOPPED");
|
|---|
| 645 |
|
|---|
| 646 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetVs, STAMTYPE_COUNTER, "/TM/TimerSetVs", STAMUNIT_OCCURENCES, "TMTimerSet calls on virtual sync timers");
|
|---|
| 647 | 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.");
|
|---|
| 648 | 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.");
|
|---|
| 649 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetVsStActive, STAMTYPE_COUNTER, "/TM/TimerSetVs/StActive", STAMUNIT_OCCURENCES, "ACTIVE");
|
|---|
| 650 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetVsStExpDeliver, STAMTYPE_COUNTER, "/TM/TimerSetVs/StExpDeliver", STAMUNIT_OCCURENCES, "EXPIRED_DELIVER");
|
|---|
| 651 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetVsStStopped, STAMTYPE_COUNTER, "/TM/TimerSetVs/StStopped", STAMUNIT_OCCURENCES, "STOPPED");
|
|---|
| 652 |
|
|---|
| 653 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelative, STAMTYPE_COUNTER, "/TM/TimerSetRelative", STAMUNIT_OCCURENCES, "Calls, except virtual sync timers");
|
|---|
| 654 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeOpt, STAMTYPE_COUNTER, "/TM/TimerSetRelative/Opt", STAMUNIT_OCCURENCES, "Optimized path taken.");
|
|---|
| 655 | 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).");
|
|---|
| 656 | 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).");
|
|---|
| 657 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStActive, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StActive", STAMUNIT_OCCURENCES, "ACTIVE");
|
|---|
| 658 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStExpDeliver, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StExpDeliver", STAMUNIT_OCCURENCES, "EXPIRED_DELIVER");
|
|---|
| 659 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStOther, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StOther", STAMUNIT_OCCURENCES, "Other states");
|
|---|
| 660 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStPendStop, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StPendStop", STAMUNIT_OCCURENCES, "PENDING_STOP");
|
|---|
| 661 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStPendStopSched, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StPendStopSched",STAMUNIT_OCCURENCES, "PENDING_STOP_SCHEDULE");
|
|---|
| 662 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStPendSched, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StPendSched", STAMUNIT_OCCURENCES, "PENDING_SCHEDULE");
|
|---|
| 663 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStPendResched, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StPendResched", STAMUNIT_OCCURENCES, "PENDING_RESCHEDULE");
|
|---|
| 664 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStStopped, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StStopped", STAMUNIT_OCCURENCES, "STOPPED");
|
|---|
| 665 |
|
|---|
| 666 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVs, STAMTYPE_COUNTER, "/TM/TimerSetRelativeVs", STAMUNIT_OCCURENCES, "TMTimerSetRelative calls on virtual sync timers");
|
|---|
| 667 | 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.");
|
|---|
| 668 | 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.");
|
|---|
| 669 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVsStActive, STAMTYPE_COUNTER, "/TM/TimerSetRelativeVs/StActive", STAMUNIT_OCCURENCES, "ACTIVE");
|
|---|
| 670 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVsStExpDeliver, STAMTYPE_COUNTER, "/TM/TimerSetRelativeVs/StExpDeliver", STAMUNIT_OCCURENCES, "EXPIRED_DELIVER");
|
|---|
| 671 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVsStStopped, STAMTYPE_COUNTER, "/TM/TimerSetRelativeVs/StStopped", STAMUNIT_OCCURENCES, "STOPPED");
|
|---|
| 672 |
|
|---|
| 673 | STAM_REG(pVM, &pVM->tm.s.StatTimerStopR3, STAMTYPE_PROFILE, "/TM/TimerStopR3", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerStop calls made in ring-3.");
|
|---|
| 674 | STAM_REG(pVM, &pVM->tm.s.StatTimerStopRZ, STAMTYPE_PROFILE, "/TM/TimerStopRZ", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerStop calls made in ring-0 / RC.");
|
|---|
| 675 |
|
|---|
| 676 | 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.");
|
|---|
| 677 | STAM_REG(pVM, &pVM->tm.s.StatVirtualGetSetFF, STAMTYPE_COUNTER, "/TM/VirtualGetSetFF", STAMUNIT_OCCURENCES, "Times we set the FF when calling TMTimerGet.");
|
|---|
| 678 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGet, STAMTYPE_COUNTER, "/TM/VirtualSyncGet", STAMUNIT_OCCURENCES, "The number of times tmVirtualSyncGetEx was called.");
|
|---|
| 679 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetAdjLast, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/AdjLast", STAMUNIT_OCCURENCES, "Times we've adjusted against the last returned time stamp .");
|
|---|
| 680 | 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.");
|
|---|
| 681 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetExpired, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/Expired", STAMUNIT_OCCURENCES, "Times tmVirtualSyncGetEx encountered an expired timer stopping the clock.");
|
|---|
| 682 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetLocked, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/Locked", STAMUNIT_OCCURENCES, "Times we successfully acquired the lock in tmVirtualSyncGetEx.");
|
|---|
| 683 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetLockless, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/Lockless", STAMUNIT_OCCURENCES, "Times tmVirtualSyncGetEx returned without needing to take the lock.");
|
|---|
| 684 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetSetFF, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/SetFF", STAMUNIT_OCCURENCES, "Times we set the FF when calling tmVirtualSyncGetEx.");
|
|---|
| 685 | STAM_REG(pVM, &pVM->tm.s.StatVirtualPause, STAMTYPE_COUNTER, "/TM/VirtualPause", STAMUNIT_OCCURENCES, "The number of times TMR3TimerPause was called.");
|
|---|
| 686 | STAM_REG(pVM, &pVM->tm.s.StatVirtualResume, STAMTYPE_COUNTER, "/TM/VirtualResume", STAMUNIT_OCCURENCES, "The number of times TMR3TimerResume was called.");
|
|---|
| 687 |
|
|---|
| 688 | STAM_REG(pVM, &pVM->tm.s.StatTimerCallbackSetFF, STAMTYPE_COUNTER, "/TM/CallbackSetFF", STAMUNIT_OCCURENCES, "The number of times the timer callback set FF.");
|
|---|
| 689 |
|
|---|
| 690 | STAM_REG(pVM, &pVM->tm.s.StatTSCCatchupLE010, STAMTYPE_COUNTER, "/TM/TSC/Intercept/CatchupLE010", STAMUNIT_OCCURENCES, "In catch-up mode, 10% or lower.");
|
|---|
| 691 | STAM_REG(pVM, &pVM->tm.s.StatTSCCatchupLE025, STAMTYPE_COUNTER, "/TM/TSC/Intercept/CatchupLE025", STAMUNIT_OCCURENCES, "In catch-up mode, 25%-11%.");
|
|---|
| 692 | STAM_REG(pVM, &pVM->tm.s.StatTSCCatchupLE100, STAMTYPE_COUNTER, "/TM/TSC/Intercept/CatchupLE100", STAMUNIT_OCCURENCES, "In catch-up mode, 100%-26%.");
|
|---|
| 693 | STAM_REG(pVM, &pVM->tm.s.StatTSCCatchupOther, STAMTYPE_COUNTER, "/TM/TSC/Intercept/CatchupOther", STAMUNIT_OCCURENCES, "In catch-up mode, > 100%.");
|
|---|
| 694 | 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.");
|
|---|
| 695 | STAM_REG(pVM, &pVM->tm.s.StatTSCNotTicking, STAMTYPE_COUNTER, "/TM/TSC/Intercept/NotTicking", STAMUNIT_OCCURENCES, "TSC is not ticking.");
|
|---|
| 696 | STAM_REG(pVM, &pVM->tm.s.StatTSCSyncNotTicking, STAMTYPE_COUNTER, "/TM/TSC/Intercept/SyncNotTicking", STAMUNIT_OCCURENCES, "VirtualSync isn't ticking.");
|
|---|
| 697 | STAM_REG(pVM, &pVM->tm.s.StatTSCWarp, STAMTYPE_COUNTER, "/TM/TSC/Intercept/Warp", STAMUNIT_OCCURENCES, "Warpdrive is active.");
|
|---|
| 698 | STAM_REG(pVM, &pVM->tm.s.StatTSCSet, STAMTYPE_COUNTER, "/TM/TSC/Sets", STAMUNIT_OCCURENCES, "Calls to TMCpuTickSet.");
|
|---|
| 699 | STAM_REG(pVM, &pVM->tm.s.StatTSCUnderflow, STAMTYPE_COUNTER, "/TM/TSC/Underflow", STAMUNIT_OCCURENCES, "TSC underflow; corrected with last seen value .");
|
|---|
| 700 | STAM_REG(pVM, &pVM->tm.s.StatVirtualPause, STAMTYPE_COUNTER, "/TM/TSC/Pause", STAMUNIT_OCCURENCES, "The number of times the TSC was paused.");
|
|---|
| 701 | STAM_REG(pVM, &pVM->tm.s.StatVirtualResume, STAMTYPE_COUNTER, "/TM/TSC/Resume", STAMUNIT_OCCURENCES, "The number of times the TSC was resumed.");
|
|---|
| 702 | #endif /* VBOX_WITH_STATISTICS */
|
|---|
| 703 |
|
|---|
| 704 | for (VMCPUID i = 0; i < pVM->cCpus; i++)
|
|---|
| 705 | {
|
|---|
| 706 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.offTSCRawSrc, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS, "TSC offset relative the raw source", "/TM/TSC/offCPU%u", i);
|
|---|
| 707 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 708 | # if defined(VBOX_WITH_STATISTICS) || defined(VBOX_WITH_NS_ACCOUNTING_STATS)
|
|---|
| 709 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.StatNsTotal, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Resettable: Total CPU run time.", "/TM/CPU/%02u", i);
|
|---|
| 710 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.StatNsExecuting, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent executing guest code.", "/TM/CPU/%02u/PrfExecuting", i);
|
|---|
| 711 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.StatNsExecLong, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent executing guest code - long hauls.", "/TM/CPU/%02u/PrfExecLong", i);
|
|---|
| 712 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.StatNsExecShort, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent executing guest code - short stretches.", "/TM/CPU/%02u/PrfExecShort", i);
|
|---|
| 713 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.StatNsExecTiny, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent executing guest code - tiny bits.", "/TM/CPU/%02u/PrfExecTiny", i);
|
|---|
| 714 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.StatNsHalted, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent halted.", "/TM/CPU/%02u/PrfHalted", i);
|
|---|
| 715 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.StatNsOther, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent in the VMM or preempted.", "/TM/CPU/%02u/PrfOther", i);
|
|---|
| 716 | # endif
|
|---|
| 717 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.cNsTotal, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Total CPU run time.", "/TM/CPU/%02u/cNsTotal", i);
|
|---|
| 718 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.cNsExecuting, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Time spent executing guest code.", "/TM/CPU/%02u/cNsExecuting", i);
|
|---|
| 719 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.cNsHalted, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Time spent halted.", "/TM/CPU/%02u/cNsHalted", i);
|
|---|
| 720 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.cNsOther, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Time spent in the VMM or preempted.", "/TM/CPU/%02u/cNsOther", i);
|
|---|
| 721 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.cPeriodsExecuting, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Times executed guest code.", "/TM/CPU/%02u/cPeriodsExecuting", i);
|
|---|
| 722 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.cPeriodsHalted, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Times halted.", "/TM/CPU/%02u/cPeriodsHalted", i);
|
|---|
| 723 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.CpuLoad.cPctExecuting, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent executing guest code recently.", "/TM/CPU/%02u/pctExecuting", i);
|
|---|
| 724 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.CpuLoad.cPctHalted, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent halted recently.", "/TM/CPU/%02u/pctHalted", i);
|
|---|
| 725 | STAMR3RegisterF(pVM, &pVM->aCpus[i].tm.s.CpuLoad.cPctOther, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent in the VMM or preempted recently.", "/TM/CPU/%02u/pctOther", i);
|
|---|
| 726 | #endif
|
|---|
| 727 | }
|
|---|
| 728 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 729 | STAMR3RegisterF(pVM, &pVM->tm.s.CpuLoad.cPctExecuting, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent executing guest code recently.", "/TM/CPU/pctExecuting");
|
|---|
| 730 | STAMR3RegisterF(pVM, &pVM->tm.s.CpuLoad.cPctHalted, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent halted recently.", "/TM/CPU/pctHalted");
|
|---|
| 731 | STAMR3RegisterF(pVM, &pVM->tm.s.CpuLoad.cPctOther, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent in the VMM or preempted recently.", "/TM/CPU/pctOther");
|
|---|
| 732 | #endif
|
|---|
| 733 |
|
|---|
| 734 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 735 | 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.");
|
|---|
| 736 | STAM_REG(pVM, (void *)&pVM->tm.s.fVirtualSyncCatchUp, STAMTYPE_U8, "/TM/VirtualSync/CatchUpActive", STAMUNIT_NONE, "Catch-Up active indicator.");
|
|---|
| 737 | 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)");
|
|---|
| 738 | 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.");
|
|---|
| 739 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGiveUp, STAMTYPE_COUNTER, "/TM/VirtualSync/GiveUp", STAMUNIT_OCCURENCES, "Times the catch-up was abandoned.");
|
|---|
| 740 | 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++.)");
|
|---|
| 741 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncRun, STAMTYPE_COUNTER, "/TM/VirtualSync/Run", STAMUNIT_OCCURENCES, "Times the virtual sync timer queue was considered.");
|
|---|
| 742 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncRunRestart, STAMTYPE_COUNTER, "/TM/VirtualSync/Run/Restarts", STAMUNIT_OCCURENCES, "Times the clock was restarted after a run.");
|
|---|
| 743 | 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.");
|
|---|
| 744 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncRunStoppedAlready, STAMTYPE_COUNTER, "/TM/VirtualSync/Run/StoppedAlready", STAMUNIT_OCCURENCES, "Times the clock was already stopped elsewhere (TMVirtualSyncGet).");
|
|---|
| 745 | 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.)");
|
|---|
| 746 | for (unsigned i = 0; i < RT_ELEMENTS(pVM->tm.s.aVirtualSyncCatchUpPeriods); i++)
|
|---|
| 747 | {
|
|---|
| 748 | STAMR3RegisterF(pVM, &pVM->tm.s.aVirtualSyncCatchUpPeriods[i].u32Percentage, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "The catch-up percentage.", "/TM/VirtualSync/Periods/%u", i);
|
|---|
| 749 | STAMR3RegisterF(pVM, &pVM->tm.s.aStatVirtualSyncCatchupAdjust[i], STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Times adjusted to this period.", "/TM/VirtualSync/Periods/%u/Adjust", i);
|
|---|
| 750 | STAMR3RegisterF(pVM, &pVM->tm.s.aStatVirtualSyncCatchupInitial[i], STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Times started in this period.", "/TM/VirtualSync/Periods/%u/Initial", i);
|
|---|
| 751 | 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);
|
|---|
| 752 | }
|
|---|
| 753 | #endif /* VBOX_WITH_STATISTICS */
|
|---|
| 754 |
|
|---|
| 755 | /*
|
|---|
| 756 | * Register info handlers.
|
|---|
| 757 | */
|
|---|
| 758 | DBGFR3InfoRegisterInternalEx(pVM, "timers", "Dumps all timers. No arguments.", tmR3TimerInfo, DBGFINFO_FLAGS_RUN_ON_EMT);
|
|---|
| 759 | DBGFR3InfoRegisterInternalEx(pVM, "activetimers", "Dumps active all timers. No arguments.", tmR3TimerInfoActive, DBGFINFO_FLAGS_RUN_ON_EMT);
|
|---|
| 760 | DBGFR3InfoRegisterInternalEx(pVM, "clocks", "Display the time of the various clocks.", tmR3InfoClocks, DBGFINFO_FLAGS_RUN_ON_EMT);
|
|---|
| 761 |
|
|---|
| 762 | return VINF_SUCCESS;
|
|---|
| 763 | }
|
|---|
| 764 |
|
|---|
| 765 |
|
|---|
| 766 | /**
|
|---|
| 767 | * Checks if the host CPU has a fixed TSC frequency.
|
|---|
| 768 | *
|
|---|
| 769 | * @returns true if it has, false if it hasn't.
|
|---|
| 770 | *
|
|---|
| 771 | * @remark This test doesn't bother with very old CPUs that don't do power
|
|---|
| 772 | * management or any other stuff that might influence the TSC rate.
|
|---|
| 773 | * This isn't currently relevant.
|
|---|
| 774 | */
|
|---|
| 775 | static bool tmR3HasFixedTSC(PVM pVM)
|
|---|
| 776 | {
|
|---|
| 777 | if (ASMHasCpuId())
|
|---|
| 778 | {
|
|---|
| 779 | uint32_t uEAX, uEBX, uECX, uEDX;
|
|---|
| 780 |
|
|---|
| 781 | if (CPUMGetHostCpuVendor(pVM) == CPUMCPUVENDOR_AMD)
|
|---|
| 782 | {
|
|---|
| 783 | /*
|
|---|
| 784 | * AuthenticAMD - Check for APM support and that TscInvariant is set.
|
|---|
| 785 | *
|
|---|
| 786 | * This test isn't correct with respect to fixed/non-fixed TSC and
|
|---|
| 787 | * older models, but this isn't relevant since the result is currently
|
|---|
| 788 | * only used for making a decision on AMD-V models.
|
|---|
| 789 | */
|
|---|
| 790 | ASMCpuId(0x80000000, &uEAX, &uEBX, &uECX, &uEDX);
|
|---|
| 791 | if (uEAX >= 0x80000007)
|
|---|
| 792 | {
|
|---|
| 793 | PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
|
|---|
| 794 |
|
|---|
| 795 | ASMCpuId(0x80000007, &uEAX, &uEBX, &uECX, &uEDX);
|
|---|
| 796 | if ( (uEDX & X86_CPUID_AMD_ADVPOWER_EDX_TSCINVAR) /* TscInvariant */
|
|---|
| 797 | && pGip->u32Mode == SUPGIPMODE_SYNC_TSC /* no fixed tsc if the gip timer is in async mode */)
|
|---|
| 798 | return true;
|
|---|
| 799 | }
|
|---|
| 800 | }
|
|---|
| 801 | else if (CPUMGetHostCpuVendor(pVM) == CPUMCPUVENDOR_INTEL)
|
|---|
| 802 | {
|
|---|
| 803 | /*
|
|---|
| 804 | * GenuineIntel - Check the model number.
|
|---|
| 805 | *
|
|---|
| 806 | * This test is lacking in the same way and for the same reasons
|
|---|
| 807 | * as the AMD test above.
|
|---|
| 808 | */
|
|---|
| 809 | ASMCpuId(1, &uEAX, &uEBX, &uECX, &uEDX);
|
|---|
| 810 | unsigned uModel = (uEAX >> 4) & 0x0f;
|
|---|
| 811 | unsigned uFamily = (uEAX >> 8) & 0x0f;
|
|---|
| 812 | if (uFamily == 0x0f)
|
|---|
| 813 | uFamily += (uEAX >> 20) & 0xff;
|
|---|
| 814 | if (uFamily >= 0x06)
|
|---|
| 815 | uModel += ((uEAX >> 16) & 0x0f) << 4;
|
|---|
| 816 | if ( (uFamily == 0x0f /*P4*/ && uModel >= 0x03)
|
|---|
| 817 | || (uFamily == 0x06 /*P2/P3*/ && uModel >= 0x0e))
|
|---|
| 818 | return true;
|
|---|
| 819 | }
|
|---|
| 820 | else if (CPUMGetHostCpuVendor(pVM) == CPUMCPUVENDOR_VIA)
|
|---|
| 821 | {
|
|---|
| 822 | /*
|
|---|
| 823 | * CentaurHauls - Check the model, family and stepping.
|
|---|
| 824 | *
|
|---|
| 825 | * This only checks for VIA CPU models Nano X2, Nano X3,
|
|---|
| 826 | * Eden X2 and QuadCore.
|
|---|
| 827 | */
|
|---|
| 828 | ASMCpuId(1, &uEAX, &uEBX, &uECX, &uEDX);
|
|---|
| 829 | unsigned uStepping = (uEAX & 0x0f);
|
|---|
| 830 | unsigned uModel = (uEAX >> 4) & 0x0f;
|
|---|
| 831 | unsigned uFamily = (uEAX >> 8) & 0x0f;
|
|---|
| 832 | if ( uFamily == 0x06
|
|---|
| 833 | && uModel == 0x0f
|
|---|
| 834 | && uStepping >= 0x0c
|
|---|
| 835 | && uStepping <= 0x0f)
|
|---|
| 836 | {
|
|---|
| 837 | return true;
|
|---|
| 838 | }
|
|---|
| 839 | }
|
|---|
| 840 | }
|
|---|
| 841 | return false;
|
|---|
| 842 | }
|
|---|
| 843 |
|
|---|
| 844 |
|
|---|
| 845 | /**
|
|---|
| 846 | * Calibrate the CPU tick.
|
|---|
| 847 | *
|
|---|
| 848 | * @returns Number of ticks per second.
|
|---|
| 849 | */
|
|---|
| 850 | static uint64_t tmR3CalibrateTSC(PVM pVM)
|
|---|
| 851 | {
|
|---|
| 852 | /*
|
|---|
| 853 | * Use GIP when available present.
|
|---|
| 854 | */
|
|---|
| 855 | uint64_t u64Hz = SUPGetCpuHzFromGIP(g_pSUPGlobalInfoPage);
|
|---|
| 856 | if (u64Hz != UINT64_MAX)
|
|---|
| 857 | {
|
|---|
| 858 | if (tmR3HasFixedTSC(pVM))
|
|---|
| 859 | /* Sleep a bit to get a more reliable CpuHz value. */
|
|---|
| 860 | RTThreadSleep(32);
|
|---|
| 861 | else
|
|---|
| 862 | {
|
|---|
| 863 | /* Spin for 40ms to try push up the CPU frequency and get a more reliable CpuHz value. */
|
|---|
| 864 | const uint64_t u64 = RTTimeMilliTS();
|
|---|
| 865 | while ((RTTimeMilliTS() - u64) < 40 /*ms*/)
|
|---|
| 866 | /* nothing */;
|
|---|
| 867 | }
|
|---|
| 868 |
|
|---|
| 869 | u64Hz = SUPGetCpuHzFromGIP(g_pSUPGlobalInfoPage);
|
|---|
| 870 | if (u64Hz != UINT64_MAX)
|
|---|
| 871 | return u64Hz;
|
|---|
| 872 | }
|
|---|
| 873 |
|
|---|
| 874 | /* call this once first to make sure it's initialized. */
|
|---|
| 875 | RTTimeNanoTS();
|
|---|
| 876 |
|
|---|
| 877 | /*
|
|---|
| 878 | * Yield the CPU to increase our chances of getting
|
|---|
| 879 | * a correct value.
|
|---|
| 880 | */
|
|---|
| 881 | RTThreadYield(); /* Try avoid interruptions between TSC and NanoTS samplings. */
|
|---|
| 882 | static const unsigned s_auSleep[5] = { 50, 30, 30, 40, 40 };
|
|---|
| 883 | uint64_t au64Samples[5];
|
|---|
| 884 | unsigned i;
|
|---|
| 885 | for (i = 0; i < RT_ELEMENTS(au64Samples); i++)
|
|---|
| 886 | {
|
|---|
| 887 | RTMSINTERVAL cMillies;
|
|---|
| 888 | int cTries = 5;
|
|---|
| 889 | uint64_t u64Start = ASMReadTSC();
|
|---|
| 890 | uint64_t u64End;
|
|---|
| 891 | uint64_t StartTS = RTTimeNanoTS();
|
|---|
| 892 | uint64_t EndTS;
|
|---|
| 893 | do
|
|---|
| 894 | {
|
|---|
| 895 | RTThreadSleep(s_auSleep[i]);
|
|---|
| 896 | u64End = ASMReadTSC();
|
|---|
| 897 | EndTS = RTTimeNanoTS();
|
|---|
| 898 | cMillies = (RTMSINTERVAL)((EndTS - StartTS + 500000) / 1000000);
|
|---|
| 899 | } while ( cMillies == 0 /* the sleep may be interrupted... */
|
|---|
| 900 | || (cMillies < 20 && --cTries > 0));
|
|---|
| 901 | uint64_t u64Diff = u64End - u64Start;
|
|---|
| 902 |
|
|---|
| 903 | au64Samples[i] = (u64Diff * 1000) / cMillies;
|
|---|
| 904 | AssertMsg(cTries > 0, ("cMillies=%d i=%d\n", cMillies, i));
|
|---|
| 905 | }
|
|---|
| 906 |
|
|---|
| 907 | /*
|
|---|
| 908 | * Discard the highest and lowest results and calculate the average.
|
|---|
| 909 | */
|
|---|
| 910 | unsigned iHigh = 0;
|
|---|
| 911 | unsigned iLow = 0;
|
|---|
| 912 | for (i = 1; i < RT_ELEMENTS(au64Samples); i++)
|
|---|
| 913 | {
|
|---|
| 914 | if (au64Samples[i] < au64Samples[iLow])
|
|---|
| 915 | iLow = i;
|
|---|
| 916 | if (au64Samples[i] > au64Samples[iHigh])
|
|---|
| 917 | iHigh = i;
|
|---|
| 918 | }
|
|---|
| 919 | au64Samples[iLow] = 0;
|
|---|
| 920 | au64Samples[iHigh] = 0;
|
|---|
| 921 |
|
|---|
| 922 | u64Hz = au64Samples[0];
|
|---|
| 923 | for (i = 1; i < RT_ELEMENTS(au64Samples); i++)
|
|---|
| 924 | u64Hz += au64Samples[i];
|
|---|
| 925 | u64Hz /= RT_ELEMENTS(au64Samples) - 2;
|
|---|
| 926 |
|
|---|
| 927 | return u64Hz;
|
|---|
| 928 | }
|
|---|
| 929 |
|
|---|
| 930 |
|
|---|
| 931 | /**
|
|---|
| 932 | * Finalizes the TM initialization.
|
|---|
| 933 | *
|
|---|
| 934 | * @returns VBox status code.
|
|---|
| 935 | * @param pVM Pointer to the VM.
|
|---|
| 936 | */
|
|---|
| 937 | VMM_INT_DECL(int) TMR3InitFinalize(PVM pVM)
|
|---|
| 938 | {
|
|---|
| 939 | int rc;
|
|---|
| 940 |
|
|---|
| 941 | /*
|
|---|
| 942 | * Resolve symbols.
|
|---|
| 943 | */
|
|---|
| 944 | if (!HMIsEnabled(pVM))
|
|---|
| 945 | {
|
|---|
| 946 | rc = PDMR3LdrGetSymbolRC(pVM, NULL, "tmVirtualNanoTSBad", &pVM->tm.s.VirtualGetRawDataRC.pfnBad);
|
|---|
| 947 | AssertRCReturn(rc, rc);
|
|---|
| 948 | rc = PDMR3LdrGetSymbolRC(pVM, NULL, "tmVirtualNanoTSRediscover", &pVM->tm.s.VirtualGetRawDataRC.pfnRediscover);
|
|---|
| 949 | AssertRCReturn(rc, rc);
|
|---|
| 950 | if (pVM->tm.s.pfnVirtualGetRawR3 == RTTimeNanoTSLFenceSync)
|
|---|
| 951 | rc = PDMR3LdrGetSymbolRC(pVM, NULL, "RTTimeNanoTSLFenceSync", &pVM->tm.s.pfnVirtualGetRawRC);
|
|---|
| 952 | else if (pVM->tm.s.pfnVirtualGetRawR3 == RTTimeNanoTSLFenceAsync)
|
|---|
| 953 | rc = PDMR3LdrGetSymbolRC(pVM, NULL, "RTTimeNanoTSLFenceAsync", &pVM->tm.s.pfnVirtualGetRawRC);
|
|---|
| 954 | else if (pVM->tm.s.pfnVirtualGetRawR3 == RTTimeNanoTSLegacySync)
|
|---|
| 955 | rc = PDMR3LdrGetSymbolRC(pVM, NULL, "RTTimeNanoTSLegacySync", &pVM->tm.s.pfnVirtualGetRawRC);
|
|---|
| 956 | else if (pVM->tm.s.pfnVirtualGetRawR3 == RTTimeNanoTSLegacyAsync)
|
|---|
| 957 | rc = PDMR3LdrGetSymbolRC(pVM, NULL, "RTTimeNanoTSLegacyAsync", &pVM->tm.s.pfnVirtualGetRawRC);
|
|---|
| 958 | else
|
|---|
| 959 | AssertFatalFailed();
|
|---|
| 960 | AssertRCReturn(rc, rc);
|
|---|
| 961 | }
|
|---|
| 962 |
|
|---|
| 963 | rc = PDMR3LdrGetSymbolR0(pVM, NULL, "tmVirtualNanoTSBad", &pVM->tm.s.VirtualGetRawDataR0.pfnBad);
|
|---|
| 964 | AssertRCReturn(rc, rc);
|
|---|
| 965 | rc = PDMR3LdrGetSymbolR0(pVM, NULL, "tmVirtualNanoTSRediscover", &pVM->tm.s.VirtualGetRawDataR0.pfnRediscover);
|
|---|
| 966 | AssertRCReturn(rc, rc);
|
|---|
| 967 | if (pVM->tm.s.pfnVirtualGetRawR3 == RTTimeNanoTSLFenceSync)
|
|---|
| 968 | rc = PDMR3LdrGetSymbolR0(pVM, NULL, "RTTimeNanoTSLFenceSync", &pVM->tm.s.pfnVirtualGetRawR0);
|
|---|
| 969 | else if (pVM->tm.s.pfnVirtualGetRawR3 == RTTimeNanoTSLFenceAsync)
|
|---|
| 970 | rc = PDMR3LdrGetSymbolR0(pVM, NULL, "RTTimeNanoTSLFenceAsync", &pVM->tm.s.pfnVirtualGetRawR0);
|
|---|
| 971 | else if (pVM->tm.s.pfnVirtualGetRawR3 == RTTimeNanoTSLegacySync)
|
|---|
| 972 | rc = PDMR3LdrGetSymbolR0(pVM, NULL, "RTTimeNanoTSLegacySync", &pVM->tm.s.pfnVirtualGetRawR0);
|
|---|
| 973 | else if (pVM->tm.s.pfnVirtualGetRawR3 == RTTimeNanoTSLegacyAsync)
|
|---|
| 974 | rc = PDMR3LdrGetSymbolR0(pVM, NULL, "RTTimeNanoTSLegacyAsync", &pVM->tm.s.pfnVirtualGetRawR0);
|
|---|
| 975 | else
|
|---|
| 976 | AssertFatalFailed();
|
|---|
| 977 | AssertRCReturn(rc, rc);
|
|---|
| 978 |
|
|---|
| 979 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 980 | /*
|
|---|
| 981 | * Create a timer for refreshing the CPU load stats.
|
|---|
| 982 | */
|
|---|
| 983 | PTMTIMER pTimer;
|
|---|
| 984 | rc = TMR3TimerCreateInternal(pVM, TMCLOCK_REAL, tmR3CpuLoadTimer, NULL, "CPU Load Timer", &pTimer);
|
|---|
| 985 | if (RT_SUCCESS(rc))
|
|---|
| 986 | rc = TMTimerSetMillies(pTimer, 1000);
|
|---|
| 987 | #endif
|
|---|
| 988 |
|
|---|
| 989 | return rc;
|
|---|
| 990 | }
|
|---|
| 991 |
|
|---|
| 992 |
|
|---|
| 993 | /**
|
|---|
| 994 | * Applies relocations to data and code managed by this
|
|---|
| 995 | * component. This function will be called at init and
|
|---|
| 996 | * whenever the VMM need to relocate it self inside the GC.
|
|---|
| 997 | *
|
|---|
| 998 | * @param pVM The VM.
|
|---|
| 999 | * @param offDelta Relocation delta relative to old location.
|
|---|
| 1000 | */
|
|---|
| 1001 | VMM_INT_DECL(void) TMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
|
|---|
| 1002 | {
|
|---|
| 1003 | int rc;
|
|---|
| 1004 | LogFlow(("TMR3Relocate\n"));
|
|---|
| 1005 | NOREF(offDelta);
|
|---|
| 1006 |
|
|---|
| 1007 | pVM->tm.s.paTimerQueuesR0 = MMHyperR3ToR0(pVM, pVM->tm.s.paTimerQueuesR3);
|
|---|
| 1008 |
|
|---|
| 1009 | if (!HMIsEnabled(pVM))
|
|---|
| 1010 | {
|
|---|
| 1011 | pVM->tm.s.pvGIPRC = MMHyperR3ToRC(pVM, pVM->tm.s.pvGIPR3);
|
|---|
| 1012 | pVM->tm.s.paTimerQueuesRC = MMHyperR3ToRC(pVM, pVM->tm.s.paTimerQueuesR3);
|
|---|
| 1013 | pVM->tm.s.VirtualGetRawDataRC.pu64Prev = MMHyperR3ToRC(pVM, (void *)&pVM->tm.s.u64VirtualRawPrev);
|
|---|
| 1014 | AssertFatal(pVM->tm.s.VirtualGetRawDataRC.pu64Prev);
|
|---|
| 1015 | rc = PDMR3LdrGetSymbolRC(pVM, NULL, "tmVirtualNanoTSBad", &pVM->tm.s.VirtualGetRawDataRC.pfnBad);
|
|---|
| 1016 | AssertFatalRC(rc);
|
|---|
| 1017 | rc = PDMR3LdrGetSymbolRC(pVM, NULL, "tmVirtualNanoTSRediscover", &pVM->tm.s.VirtualGetRawDataRC.pfnRediscover);
|
|---|
| 1018 | AssertFatalRC(rc);
|
|---|
| 1019 |
|
|---|
| 1020 | if (pVM->tm.s.pfnVirtualGetRawR3 == RTTimeNanoTSLFenceSync)
|
|---|
| 1021 | rc = PDMR3LdrGetSymbolRC(pVM, NULL, "RTTimeNanoTSLFenceSync", &pVM->tm.s.pfnVirtualGetRawRC);
|
|---|
| 1022 | else if (pVM->tm.s.pfnVirtualGetRawR3 == RTTimeNanoTSLFenceAsync)
|
|---|
| 1023 | rc = PDMR3LdrGetSymbolRC(pVM, NULL, "RTTimeNanoTSLFenceAsync", &pVM->tm.s.pfnVirtualGetRawRC);
|
|---|
| 1024 | else if (pVM->tm.s.pfnVirtualGetRawR3 == RTTimeNanoTSLegacySync)
|
|---|
| 1025 | rc = PDMR3LdrGetSymbolRC(pVM, NULL, "RTTimeNanoTSLegacySync", &pVM->tm.s.pfnVirtualGetRawRC);
|
|---|
| 1026 | else if (pVM->tm.s.pfnVirtualGetRawR3 == RTTimeNanoTSLegacyAsync)
|
|---|
| 1027 | rc = PDMR3LdrGetSymbolRC(pVM, NULL, "RTTimeNanoTSLegacyAsync", &pVM->tm.s.pfnVirtualGetRawRC);
|
|---|
| 1028 | else
|
|---|
| 1029 | AssertFatalFailed();
|
|---|
| 1030 | AssertFatalRC(rc);
|
|---|
| 1031 | }
|
|---|
| 1032 |
|
|---|
| 1033 | /*
|
|---|
| 1034 | * Iterate the timers updating the pVMRC pointers.
|
|---|
| 1035 | */
|
|---|
| 1036 | for (PTMTIMER pTimer = pVM->tm.s.pCreated; pTimer; pTimer = pTimer->pBigNext)
|
|---|
| 1037 | {
|
|---|
| 1038 | pTimer->pVMRC = pVM->pVMRC;
|
|---|
| 1039 | pTimer->pVMR0 = pVM->pVMR0;
|
|---|
| 1040 | }
|
|---|
| 1041 | }
|
|---|
| 1042 |
|
|---|
| 1043 |
|
|---|
| 1044 | /**
|
|---|
| 1045 | * Terminates the TM.
|
|---|
| 1046 | *
|
|---|
| 1047 | * Termination means cleaning up and freeing all resources,
|
|---|
| 1048 | * the VM it self is at this point powered off or suspended.
|
|---|
| 1049 | *
|
|---|
| 1050 | * @returns VBox status code.
|
|---|
| 1051 | * @param pVM Pointer to the VM.
|
|---|
| 1052 | */
|
|---|
| 1053 | VMM_INT_DECL(int) TMR3Term(PVM pVM)
|
|---|
| 1054 | {
|
|---|
| 1055 | AssertMsg(pVM->tm.s.offVM, ("bad init order!\n"));
|
|---|
| 1056 | if (pVM->tm.s.pTimer)
|
|---|
| 1057 | {
|
|---|
| 1058 | int rc = RTTimerDestroy(pVM->tm.s.pTimer);
|
|---|
| 1059 | AssertRC(rc);
|
|---|
| 1060 | pVM->tm.s.pTimer = NULL;
|
|---|
| 1061 | }
|
|---|
| 1062 |
|
|---|
| 1063 | return VINF_SUCCESS;
|
|---|
| 1064 | }
|
|---|
| 1065 |
|
|---|
| 1066 |
|
|---|
| 1067 | /**
|
|---|
| 1068 | * The VM is being reset.
|
|---|
| 1069 | *
|
|---|
| 1070 | * For the TM component this means that a rescheduling is preformed,
|
|---|
| 1071 | * the FF is cleared and but without running the queues. We'll have to
|
|---|
| 1072 | * check if this makes sense or not, but it seems like a good idea now....
|
|---|
| 1073 | *
|
|---|
| 1074 | * @param pVM Pointer to the VM.
|
|---|
| 1075 | */
|
|---|
| 1076 | VMM_INT_DECL(void) TMR3Reset(PVM pVM)
|
|---|
| 1077 | {
|
|---|
| 1078 | LogFlow(("TMR3Reset:\n"));
|
|---|
| 1079 | VM_ASSERT_EMT(pVM);
|
|---|
| 1080 | TM_LOCK_TIMERS(pVM);
|
|---|
| 1081 |
|
|---|
| 1082 | /*
|
|---|
| 1083 | * Abort any pending catch up.
|
|---|
| 1084 | * This isn't perfect...
|
|---|
| 1085 | */
|
|---|
| 1086 | if (pVM->tm.s.fVirtualSyncCatchUp)
|
|---|
| 1087 | {
|
|---|
| 1088 | const uint64_t offVirtualNow = TMVirtualGetNoCheck(pVM);
|
|---|
| 1089 | const uint64_t offVirtualSyncNow = TMVirtualSyncGetNoCheck(pVM);
|
|---|
| 1090 | if (pVM->tm.s.fVirtualSyncCatchUp)
|
|---|
| 1091 | {
|
|---|
| 1092 | STAM_PROFILE_ADV_STOP(&pVM->tm.s.StatVirtualSyncCatchup, c);
|
|---|
| 1093 |
|
|---|
| 1094 | const uint64_t offOld = pVM->tm.s.offVirtualSyncGivenUp;
|
|---|
| 1095 | const uint64_t offNew = offVirtualNow - offVirtualSyncNow;
|
|---|
| 1096 | Assert(offOld <= offNew);
|
|---|
| 1097 | ASMAtomicWriteU64((uint64_t volatile *)&pVM->tm.s.offVirtualSyncGivenUp, offNew);
|
|---|
| 1098 | ASMAtomicWriteU64((uint64_t volatile *)&pVM->tm.s.offVirtualSync, offNew);
|
|---|
| 1099 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, false);
|
|---|
| 1100 | LogRel(("TM: Aborting catch-up attempt on reset with a %'RU64 ns lag on reset; new total: %'RU64 ns\n", offNew - offOld, offNew));
|
|---|
| 1101 | }
|
|---|
| 1102 | }
|
|---|
| 1103 |
|
|---|
| 1104 | /*
|
|---|
| 1105 | * Process the queues.
|
|---|
| 1106 | */
|
|---|
| 1107 | for (int i = 0; i < TMCLOCK_MAX; i++)
|
|---|
| 1108 | tmTimerQueueSchedule(pVM, &pVM->tm.s.paTimerQueuesR3[i]);
|
|---|
| 1109 | #ifdef VBOX_STRICT
|
|---|
| 1110 | tmTimerQueuesSanityChecks(pVM, "TMR3Reset");
|
|---|
| 1111 | #endif
|
|---|
| 1112 |
|
|---|
| 1113 | PVMCPU pVCpuDst = &pVM->aCpus[pVM->tm.s.idTimerCpu];
|
|---|
| 1114 | VMCPU_FF_CLEAR(pVCpuDst, VMCPU_FF_TIMER); /** @todo FIXME: this isn't right. */
|
|---|
| 1115 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 1116 | }
|
|---|
| 1117 |
|
|---|
| 1118 |
|
|---|
| 1119 | /**
|
|---|
| 1120 | * Resolve a builtin RC symbol.
|
|---|
| 1121 | * Called by PDM when loading or relocating GC modules.
|
|---|
| 1122 | *
|
|---|
| 1123 | * @returns VBox status
|
|---|
| 1124 | * @param pVM Pointer to the VM.
|
|---|
| 1125 | * @param pszSymbol Symbol to resolve.
|
|---|
| 1126 | * @param pRCPtrValue Where to store the symbol value.
|
|---|
| 1127 | * @remark This has to work before TMR3Relocate() is called.
|
|---|
| 1128 | */
|
|---|
| 1129 | VMM_INT_DECL(int) TMR3GetImportRC(PVM pVM, const char *pszSymbol, PRTRCPTR pRCPtrValue)
|
|---|
| 1130 | {
|
|---|
| 1131 | if (!strcmp(pszSymbol, "g_pSUPGlobalInfoPage"))
|
|---|
| 1132 | *pRCPtrValue = MMHyperR3ToRC(pVM, &pVM->tm.s.pvGIPRC);
|
|---|
| 1133 | //else if (..)
|
|---|
| 1134 | else
|
|---|
| 1135 | return VERR_SYMBOL_NOT_FOUND;
|
|---|
| 1136 | return VINF_SUCCESS;
|
|---|
| 1137 | }
|
|---|
| 1138 |
|
|---|
| 1139 |
|
|---|
| 1140 | /**
|
|---|
| 1141 | * Execute state save operation.
|
|---|
| 1142 | *
|
|---|
| 1143 | * @returns VBox status code.
|
|---|
| 1144 | * @param pVM Pointer to the VM.
|
|---|
| 1145 | * @param pSSM SSM operation handle.
|
|---|
| 1146 | */
|
|---|
| 1147 | static DECLCALLBACK(int) tmR3Save(PVM pVM, PSSMHANDLE pSSM)
|
|---|
| 1148 | {
|
|---|
| 1149 | LogFlow(("tmR3Save:\n"));
|
|---|
| 1150 | #ifdef VBOX_STRICT
|
|---|
| 1151 | for (VMCPUID i = 0; i < pVM->cCpus; i++)
|
|---|
| 1152 | {
|
|---|
| 1153 | PVMCPU pVCpu = &pVM->aCpus[i];
|
|---|
| 1154 | Assert(!pVCpu->tm.s.fTSCTicking);
|
|---|
| 1155 | }
|
|---|
| 1156 | Assert(!pVM->tm.s.cVirtualTicking);
|
|---|
| 1157 | Assert(!pVM->tm.s.fVirtualSyncTicking);
|
|---|
| 1158 | Assert(!pVM->tm.s.cTSCsTicking);
|
|---|
| 1159 | #endif
|
|---|
| 1160 |
|
|---|
| 1161 | /*
|
|---|
| 1162 | * Save the virtual clocks.
|
|---|
| 1163 | */
|
|---|
| 1164 | /* the virtual clock. */
|
|---|
| 1165 | SSMR3PutU64(pSSM, TMCLOCK_FREQ_VIRTUAL);
|
|---|
| 1166 | SSMR3PutU64(pSSM, pVM->tm.s.u64Virtual);
|
|---|
| 1167 |
|
|---|
| 1168 | /* the virtual timer synchronous clock. */
|
|---|
| 1169 | SSMR3PutU64(pSSM, pVM->tm.s.u64VirtualSync);
|
|---|
| 1170 | SSMR3PutU64(pSSM, pVM->tm.s.offVirtualSync);
|
|---|
| 1171 | SSMR3PutU64(pSSM, pVM->tm.s.offVirtualSyncGivenUp);
|
|---|
| 1172 | SSMR3PutU64(pSSM, pVM->tm.s.u64VirtualSyncCatchUpPrev);
|
|---|
| 1173 | SSMR3PutBool(pSSM, pVM->tm.s.fVirtualSyncCatchUp);
|
|---|
| 1174 |
|
|---|
| 1175 | /* real time clock */
|
|---|
| 1176 | SSMR3PutU64(pSSM, TMCLOCK_FREQ_REAL);
|
|---|
| 1177 |
|
|---|
| 1178 | /* the cpu tick clock. */
|
|---|
| 1179 | for (VMCPUID i = 0; i < pVM->cCpus; i++)
|
|---|
| 1180 | {
|
|---|
| 1181 | PVMCPU pVCpu = &pVM->aCpus[i];
|
|---|
| 1182 | SSMR3PutU64(pSSM, TMCpuTickGet(pVCpu));
|
|---|
| 1183 | }
|
|---|
| 1184 | return SSMR3PutU64(pSSM, pVM->tm.s.cTSCTicksPerSecond);
|
|---|
| 1185 | }
|
|---|
| 1186 |
|
|---|
| 1187 |
|
|---|
| 1188 | /**
|
|---|
| 1189 | * Execute state load operation.
|
|---|
| 1190 | *
|
|---|
| 1191 | * @returns VBox status code.
|
|---|
| 1192 | * @param pVM Pointer to the VM.
|
|---|
| 1193 | * @param pSSM SSM operation handle.
|
|---|
| 1194 | * @param uVersion Data layout version.
|
|---|
| 1195 | * @param uPass The data pass.
|
|---|
| 1196 | */
|
|---|
| 1197 | static DECLCALLBACK(int) tmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
|
|---|
| 1198 | {
|
|---|
| 1199 | LogFlow(("tmR3Load:\n"));
|
|---|
| 1200 |
|
|---|
| 1201 | Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
|
|---|
| 1202 | #ifdef VBOX_STRICT
|
|---|
| 1203 | for (VMCPUID i = 0; i < pVM->cCpus; i++)
|
|---|
| 1204 | {
|
|---|
| 1205 | PVMCPU pVCpu = &pVM->aCpus[i];
|
|---|
| 1206 | Assert(!pVCpu->tm.s.fTSCTicking);
|
|---|
| 1207 | }
|
|---|
| 1208 | Assert(!pVM->tm.s.cVirtualTicking);
|
|---|
| 1209 | Assert(!pVM->tm.s.fVirtualSyncTicking);
|
|---|
| 1210 | Assert(!pVM->tm.s.cTSCsTicking);
|
|---|
| 1211 | #endif
|
|---|
| 1212 |
|
|---|
| 1213 | /*
|
|---|
| 1214 | * Validate version.
|
|---|
| 1215 | */
|
|---|
| 1216 | if (uVersion != TM_SAVED_STATE_VERSION)
|
|---|
| 1217 | {
|
|---|
| 1218 | AssertMsgFailed(("tmR3Load: Invalid version uVersion=%d!\n", uVersion));
|
|---|
| 1219 | return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
|
|---|
| 1220 | }
|
|---|
| 1221 |
|
|---|
| 1222 | /*
|
|---|
| 1223 | * Load the virtual clock.
|
|---|
| 1224 | */
|
|---|
| 1225 | pVM->tm.s.cVirtualTicking = 0;
|
|---|
| 1226 | /* the virtual clock. */
|
|---|
| 1227 | uint64_t u64Hz;
|
|---|
| 1228 | int rc = SSMR3GetU64(pSSM, &u64Hz);
|
|---|
| 1229 | if (RT_FAILURE(rc))
|
|---|
| 1230 | return rc;
|
|---|
| 1231 | if (u64Hz != TMCLOCK_FREQ_VIRTUAL)
|
|---|
| 1232 | {
|
|---|
| 1233 | AssertMsgFailed(("The virtual clock frequency differs! Saved: %'RU64 Binary: %'RU64\n",
|
|---|
| 1234 | u64Hz, TMCLOCK_FREQ_VIRTUAL));
|
|---|
| 1235 | return VERR_SSM_VIRTUAL_CLOCK_HZ;
|
|---|
| 1236 | }
|
|---|
| 1237 | SSMR3GetU64(pSSM, &pVM->tm.s.u64Virtual);
|
|---|
| 1238 | pVM->tm.s.u64VirtualOffset = 0;
|
|---|
| 1239 |
|
|---|
| 1240 | /* the virtual timer synchronous clock. */
|
|---|
| 1241 | pVM->tm.s.fVirtualSyncTicking = false;
|
|---|
| 1242 | uint64_t u64;
|
|---|
| 1243 | SSMR3GetU64(pSSM, &u64);
|
|---|
| 1244 | pVM->tm.s.u64VirtualSync = u64;
|
|---|
| 1245 | SSMR3GetU64(pSSM, &u64);
|
|---|
| 1246 | pVM->tm.s.offVirtualSync = u64;
|
|---|
| 1247 | SSMR3GetU64(pSSM, &u64);
|
|---|
| 1248 | pVM->tm.s.offVirtualSyncGivenUp = u64;
|
|---|
| 1249 | SSMR3GetU64(pSSM, &u64);
|
|---|
| 1250 | pVM->tm.s.u64VirtualSyncCatchUpPrev = u64;
|
|---|
| 1251 | bool f;
|
|---|
| 1252 | SSMR3GetBool(pSSM, &f);
|
|---|
| 1253 | pVM->tm.s.fVirtualSyncCatchUp = f;
|
|---|
| 1254 |
|
|---|
| 1255 | /* the real clock */
|
|---|
| 1256 | rc = SSMR3GetU64(pSSM, &u64Hz);
|
|---|
| 1257 | if (RT_FAILURE(rc))
|
|---|
| 1258 | return rc;
|
|---|
| 1259 | if (u64Hz != TMCLOCK_FREQ_REAL)
|
|---|
| 1260 | {
|
|---|
| 1261 | AssertMsgFailed(("The real clock frequency differs! Saved: %'RU64 Binary: %'RU64\n",
|
|---|
| 1262 | u64Hz, TMCLOCK_FREQ_REAL));
|
|---|
| 1263 | return VERR_SSM_VIRTUAL_CLOCK_HZ; /* misleading... */
|
|---|
| 1264 | }
|
|---|
| 1265 |
|
|---|
| 1266 | /* the cpu tick clock. */
|
|---|
| 1267 | pVM->tm.s.cTSCsTicking = 0;
|
|---|
| 1268 | pVM->tm.s.offTSCPause = 0;
|
|---|
| 1269 | pVM->tm.s.u64LastPausedTSC = 0;
|
|---|
| 1270 | for (VMCPUID i = 0; i < pVM->cCpus; i++)
|
|---|
| 1271 | {
|
|---|
| 1272 | PVMCPU pVCpu = &pVM->aCpus[i];
|
|---|
| 1273 |
|
|---|
| 1274 | pVCpu->tm.s.fTSCTicking = false;
|
|---|
| 1275 | SSMR3GetU64(pSSM, &pVCpu->tm.s.u64TSC);
|
|---|
| 1276 | if (pVM->tm.s.u64LastPausedTSC < pVCpu->tm.s.u64TSC)
|
|---|
| 1277 | pVM->tm.s.u64LastPausedTSC = pVCpu->tm.s.u64TSC;
|
|---|
| 1278 |
|
|---|
| 1279 | if (pVM->tm.s.fTSCUseRealTSC)
|
|---|
| 1280 | pVCpu->tm.s.offTSCRawSrc = 0; /** @todo TSC restore stuff and HWACC. */
|
|---|
| 1281 | }
|
|---|
| 1282 |
|
|---|
| 1283 | rc = SSMR3GetU64(pSSM, &u64Hz);
|
|---|
| 1284 | if (RT_FAILURE(rc))
|
|---|
| 1285 | return rc;
|
|---|
| 1286 | if (!pVM->tm.s.fTSCUseRealTSC)
|
|---|
| 1287 | pVM->tm.s.cTSCTicksPerSecond = u64Hz;
|
|---|
| 1288 |
|
|---|
| 1289 | LogRel(("TM: cTSCTicksPerSecond=%#RX64 (%'RU64) fTSCVirtualized=%RTbool fTSCUseRealTSC=%RTbool (state load)\n",
|
|---|
| 1290 | pVM->tm.s.cTSCTicksPerSecond, pVM->tm.s.cTSCTicksPerSecond, pVM->tm.s.fTSCVirtualized, pVM->tm.s.fTSCUseRealTSC));
|
|---|
| 1291 |
|
|---|
| 1292 | /*
|
|---|
| 1293 | * Make sure timers get rescheduled immediately.
|
|---|
| 1294 | */
|
|---|
| 1295 | PVMCPU pVCpuDst = &pVM->aCpus[pVM->tm.s.idTimerCpu];
|
|---|
| 1296 | VMCPU_FF_SET(pVCpuDst, VMCPU_FF_TIMER);
|
|---|
| 1297 |
|
|---|
| 1298 | return VINF_SUCCESS;
|
|---|
| 1299 | }
|
|---|
| 1300 |
|
|---|
| 1301 |
|
|---|
| 1302 | /**
|
|---|
| 1303 | * Internal TMR3TimerCreate worker.
|
|---|
| 1304 | *
|
|---|
| 1305 | * @returns VBox status code.
|
|---|
| 1306 | * @param pVM Pointer to the VM.
|
|---|
| 1307 | * @param enmClock The timer clock.
|
|---|
| 1308 | * @param pszDesc The timer description.
|
|---|
| 1309 | * @param ppTimer Where to store the timer pointer on success.
|
|---|
| 1310 | */
|
|---|
| 1311 | static int tmr3TimerCreate(PVM pVM, TMCLOCK enmClock, const char *pszDesc, PPTMTIMERR3 ppTimer)
|
|---|
| 1312 | {
|
|---|
| 1313 | VM_ASSERT_EMT(pVM);
|
|---|
| 1314 |
|
|---|
| 1315 | /*
|
|---|
| 1316 | * Allocate the timer.
|
|---|
| 1317 | */
|
|---|
| 1318 | PTMTIMERR3 pTimer = NULL;
|
|---|
| 1319 | if (pVM->tm.s.pFree && VM_IS_EMT(pVM))
|
|---|
| 1320 | {
|
|---|
| 1321 | pTimer = pVM->tm.s.pFree;
|
|---|
| 1322 | pVM->tm.s.pFree = pTimer->pBigNext;
|
|---|
| 1323 | Log3(("TM: Recycling timer %p, new free head %p.\n", pTimer, pTimer->pBigNext));
|
|---|
| 1324 | }
|
|---|
| 1325 |
|
|---|
| 1326 | if (!pTimer)
|
|---|
| 1327 | {
|
|---|
| 1328 | int rc = MMHyperAlloc(pVM, sizeof(*pTimer), 0, MM_TAG_TM, (void **)&pTimer);
|
|---|
| 1329 | if (RT_FAILURE(rc))
|
|---|
| 1330 | return rc;
|
|---|
| 1331 | Log3(("TM: Allocated new timer %p\n", pTimer));
|
|---|
| 1332 | }
|
|---|
| 1333 |
|
|---|
| 1334 | /*
|
|---|
| 1335 | * Initialize it.
|
|---|
| 1336 | */
|
|---|
| 1337 | pTimer->u64Expire = 0;
|
|---|
| 1338 | pTimer->enmClock = enmClock;
|
|---|
| 1339 | pTimer->pVMR3 = pVM;
|
|---|
| 1340 | pTimer->pVMR0 = pVM->pVMR0;
|
|---|
| 1341 | pTimer->pVMRC = pVM->pVMRC;
|
|---|
| 1342 | pTimer->enmState = TMTIMERSTATE_STOPPED;
|
|---|
| 1343 | pTimer->offScheduleNext = 0;
|
|---|
| 1344 | pTimer->offNext = 0;
|
|---|
| 1345 | pTimer->offPrev = 0;
|
|---|
| 1346 | pTimer->pvUser = NULL;
|
|---|
| 1347 | pTimer->pCritSect = NULL;
|
|---|
| 1348 | pTimer->pszDesc = pszDesc;
|
|---|
| 1349 |
|
|---|
| 1350 | /* insert into the list of created timers. */
|
|---|
| 1351 | TM_LOCK_TIMERS(pVM);
|
|---|
| 1352 | pTimer->pBigPrev = NULL;
|
|---|
| 1353 | pTimer->pBigNext = pVM->tm.s.pCreated;
|
|---|
| 1354 | pVM->tm.s.pCreated = pTimer;
|
|---|
| 1355 | if (pTimer->pBigNext)
|
|---|
| 1356 | pTimer->pBigNext->pBigPrev = pTimer;
|
|---|
| 1357 | #ifdef VBOX_STRICT
|
|---|
| 1358 | tmTimerQueuesSanityChecks(pVM, "tmR3TimerCreate");
|
|---|
| 1359 | #endif
|
|---|
| 1360 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 1361 |
|
|---|
| 1362 | *ppTimer = pTimer;
|
|---|
| 1363 | return VINF_SUCCESS;
|
|---|
| 1364 | }
|
|---|
| 1365 |
|
|---|
| 1366 |
|
|---|
| 1367 | /**
|
|---|
| 1368 | * Creates a device timer.
|
|---|
| 1369 | *
|
|---|
| 1370 | * @returns VBox status.
|
|---|
| 1371 | * @param pVM The VM to create the timer in.
|
|---|
| 1372 | * @param pDevIns Device instance.
|
|---|
| 1373 | * @param enmClock The clock to use on this timer.
|
|---|
| 1374 | * @param pfnCallback Callback function.
|
|---|
| 1375 | * @param pvUser The user argument to the callback.
|
|---|
| 1376 | * @param fFlags Timer creation flags, see grp_tm_timer_flags.
|
|---|
| 1377 | * @param pszDesc Pointer to description string which must stay around
|
|---|
| 1378 | * until the timer is fully destroyed (i.e. a bit after TMTimerDestroy()).
|
|---|
| 1379 | * @param ppTimer Where to store the timer on success.
|
|---|
| 1380 | */
|
|---|
| 1381 | VMM_INT_DECL(int) TMR3TimerCreateDevice(PVM pVM, PPDMDEVINS pDevIns, TMCLOCK enmClock,
|
|---|
| 1382 | PFNTMTIMERDEV pfnCallback, void *pvUser,
|
|---|
| 1383 | uint32_t fFlags, const char *pszDesc, PPTMTIMERR3 ppTimer)
|
|---|
| 1384 | {
|
|---|
| 1385 | AssertReturn(!(fFlags & ~(TMTIMER_FLAGS_NO_CRIT_SECT)), VERR_INVALID_PARAMETER);
|
|---|
| 1386 |
|
|---|
| 1387 | /*
|
|---|
| 1388 | * Allocate and init stuff.
|
|---|
| 1389 | */
|
|---|
| 1390 | int rc = tmr3TimerCreate(pVM, enmClock, pszDesc, ppTimer);
|
|---|
| 1391 | if (RT_SUCCESS(rc))
|
|---|
| 1392 | {
|
|---|
| 1393 | (*ppTimer)->enmType = TMTIMERTYPE_DEV;
|
|---|
| 1394 | (*ppTimer)->u.Dev.pfnTimer = pfnCallback;
|
|---|
| 1395 | (*ppTimer)->u.Dev.pDevIns = pDevIns;
|
|---|
| 1396 | (*ppTimer)->pvUser = pvUser;
|
|---|
| 1397 | if (!(fFlags & TMTIMER_FLAGS_NO_CRIT_SECT))
|
|---|
| 1398 | (*ppTimer)->pCritSect = PDMR3DevGetCritSect(pVM, pDevIns);
|
|---|
| 1399 | Log(("TM: Created device timer %p clock %d callback %p '%s'\n", (*ppTimer), enmClock, pfnCallback, pszDesc));
|
|---|
| 1400 | }
|
|---|
| 1401 |
|
|---|
| 1402 | return rc;
|
|---|
| 1403 | }
|
|---|
| 1404 |
|
|---|
| 1405 |
|
|---|
| 1406 |
|
|---|
| 1407 |
|
|---|
| 1408 | /**
|
|---|
| 1409 | * Creates a USB device timer.
|
|---|
| 1410 | *
|
|---|
| 1411 | * @returns VBox status.
|
|---|
| 1412 | * @param pVM The VM to create the timer in.
|
|---|
| 1413 | * @param pUsbIns The USB device instance.
|
|---|
| 1414 | * @param enmClock The clock to use on this timer.
|
|---|
| 1415 | * @param pfnCallback Callback function.
|
|---|
| 1416 | * @param pvUser The user argument to the callback.
|
|---|
| 1417 | * @param fFlags Timer creation flags, see grp_tm_timer_flags.
|
|---|
| 1418 | * @param pszDesc Pointer to description string which must stay around
|
|---|
| 1419 | * until the timer is fully destroyed (i.e. a bit after TMTimerDestroy()).
|
|---|
| 1420 | * @param ppTimer Where to store the timer on success.
|
|---|
| 1421 | */
|
|---|
| 1422 | VMM_INT_DECL(int) TMR3TimerCreateUsb(PVM pVM, PPDMUSBINS pUsbIns, TMCLOCK enmClock,
|
|---|
| 1423 | PFNTMTIMERUSB pfnCallback, void *pvUser,
|
|---|
| 1424 | uint32_t fFlags, const char *pszDesc, PPTMTIMERR3 ppTimer)
|
|---|
| 1425 | {
|
|---|
| 1426 | AssertReturn(!(fFlags & ~(TMTIMER_FLAGS_NO_CRIT_SECT)), VERR_INVALID_PARAMETER);
|
|---|
| 1427 |
|
|---|
| 1428 | /*
|
|---|
| 1429 | * Allocate and init stuff.
|
|---|
| 1430 | */
|
|---|
| 1431 | int rc = tmr3TimerCreate(pVM, enmClock, pszDesc, ppTimer);
|
|---|
| 1432 | if (RT_SUCCESS(rc))
|
|---|
| 1433 | {
|
|---|
| 1434 | (*ppTimer)->enmType = TMTIMERTYPE_USB;
|
|---|
| 1435 | (*ppTimer)->u.Usb.pfnTimer = pfnCallback;
|
|---|
| 1436 | (*ppTimer)->u.Usb.pUsbIns = pUsbIns;
|
|---|
| 1437 | (*ppTimer)->pvUser = pvUser;
|
|---|
| 1438 | //if (!(fFlags & TMTIMER_FLAGS_NO_CRIT_SECT))
|
|---|
| 1439 | //{
|
|---|
| 1440 | // if (pDevIns->pCritSectR3)
|
|---|
| 1441 | // (*ppTimer)->pCritSect = pUsbIns->pCritSectR3;
|
|---|
| 1442 | // else
|
|---|
| 1443 | // (*ppTimer)->pCritSect = IOMR3GetCritSect(pVM);
|
|---|
| 1444 | //}
|
|---|
| 1445 | Log(("TM: Created USB device timer %p clock %d callback %p '%s'\n", (*ppTimer), enmClock, pfnCallback, pszDesc));
|
|---|
| 1446 | }
|
|---|
| 1447 |
|
|---|
| 1448 | return rc;
|
|---|
| 1449 | }
|
|---|
| 1450 |
|
|---|
| 1451 |
|
|---|
| 1452 | /**
|
|---|
| 1453 | * Creates a driver timer.
|
|---|
| 1454 | *
|
|---|
| 1455 | * @returns VBox status.
|
|---|
| 1456 | * @param pVM The VM to create the timer in.
|
|---|
| 1457 | * @param pDrvIns Driver instance.
|
|---|
| 1458 | * @param enmClock The clock to use on this timer.
|
|---|
| 1459 | * @param pfnCallback Callback function.
|
|---|
| 1460 | * @param pvUser The user argument to the callback.
|
|---|
| 1461 | * @param fFlags Timer creation flags, see grp_tm_timer_flags.
|
|---|
| 1462 | * @param pszDesc Pointer to description string which must stay around
|
|---|
| 1463 | * until the timer is fully destroyed (i.e. a bit after TMTimerDestroy()).
|
|---|
| 1464 | * @param ppTimer Where to store the timer on success.
|
|---|
| 1465 | */
|
|---|
| 1466 | VMM_INT_DECL(int) TMR3TimerCreateDriver(PVM pVM, PPDMDRVINS pDrvIns, TMCLOCK enmClock, PFNTMTIMERDRV pfnCallback, void *pvUser,
|
|---|
| 1467 | uint32_t fFlags, const char *pszDesc, PPTMTIMERR3 ppTimer)
|
|---|
| 1468 | {
|
|---|
| 1469 | AssertReturn(!(fFlags & ~(TMTIMER_FLAGS_NO_CRIT_SECT)), VERR_INVALID_PARAMETER);
|
|---|
| 1470 |
|
|---|
| 1471 | /*
|
|---|
| 1472 | * Allocate and init stuff.
|
|---|
| 1473 | */
|
|---|
| 1474 | int rc = tmr3TimerCreate(pVM, enmClock, pszDesc, ppTimer);
|
|---|
| 1475 | if (RT_SUCCESS(rc))
|
|---|
| 1476 | {
|
|---|
| 1477 | (*ppTimer)->enmType = TMTIMERTYPE_DRV;
|
|---|
| 1478 | (*ppTimer)->u.Drv.pfnTimer = pfnCallback;
|
|---|
| 1479 | (*ppTimer)->u.Drv.pDrvIns = pDrvIns;
|
|---|
| 1480 | (*ppTimer)->pvUser = pvUser;
|
|---|
| 1481 | Log(("TM: Created device timer %p clock %d callback %p '%s'\n", (*ppTimer), enmClock, pfnCallback, pszDesc));
|
|---|
| 1482 | }
|
|---|
| 1483 |
|
|---|
| 1484 | return rc;
|
|---|
| 1485 | }
|
|---|
| 1486 |
|
|---|
| 1487 |
|
|---|
| 1488 | /**
|
|---|
| 1489 | * Creates an internal timer.
|
|---|
| 1490 | *
|
|---|
| 1491 | * @returns VBox status.
|
|---|
| 1492 | * @param pVM The VM to create the timer in.
|
|---|
| 1493 | * @param enmClock The clock to use on this timer.
|
|---|
| 1494 | * @param pfnCallback Callback function.
|
|---|
| 1495 | * @param pvUser User argument to be passed to the callback.
|
|---|
| 1496 | * @param pszDesc Pointer to description string which must stay around
|
|---|
| 1497 | * until the timer is fully destroyed (i.e. a bit after TMTimerDestroy()).
|
|---|
| 1498 | * @param ppTimer Where to store the timer on success.
|
|---|
| 1499 | */
|
|---|
| 1500 | VMMR3DECL(int) TMR3TimerCreateInternal(PVM pVM, TMCLOCK enmClock, PFNTMTIMERINT pfnCallback, void *pvUser, const char *pszDesc, PPTMTIMERR3 ppTimer)
|
|---|
| 1501 | {
|
|---|
| 1502 | /*
|
|---|
| 1503 | * Allocate and init stuff.
|
|---|
| 1504 | */
|
|---|
| 1505 | PTMTIMER pTimer;
|
|---|
| 1506 | int rc = tmr3TimerCreate(pVM, enmClock, pszDesc, &pTimer);
|
|---|
| 1507 | if (RT_SUCCESS(rc))
|
|---|
| 1508 | {
|
|---|
| 1509 | pTimer->enmType = TMTIMERTYPE_INTERNAL;
|
|---|
| 1510 | pTimer->u.Internal.pfnTimer = pfnCallback;
|
|---|
| 1511 | pTimer->pvUser = pvUser;
|
|---|
| 1512 | *ppTimer = pTimer;
|
|---|
| 1513 | Log(("TM: Created internal timer %p clock %d callback %p '%s'\n", pTimer, enmClock, pfnCallback, pszDesc));
|
|---|
| 1514 | }
|
|---|
| 1515 |
|
|---|
| 1516 | return rc;
|
|---|
| 1517 | }
|
|---|
| 1518 |
|
|---|
| 1519 | /**
|
|---|
| 1520 | * Creates an external timer.
|
|---|
| 1521 | *
|
|---|
| 1522 | * @returns Timer handle on success.
|
|---|
| 1523 | * @returns NULL on failure.
|
|---|
| 1524 | * @param pVM The VM to create the timer in.
|
|---|
| 1525 | * @param enmClock The clock to use on this timer.
|
|---|
| 1526 | * @param pfnCallback Callback function.
|
|---|
| 1527 | * @param pvUser User argument.
|
|---|
| 1528 | * @param pszDesc Pointer to description string which must stay around
|
|---|
| 1529 | * until the timer is fully destroyed (i.e. a bit after TMTimerDestroy()).
|
|---|
| 1530 | */
|
|---|
| 1531 | VMMR3DECL(PTMTIMERR3) TMR3TimerCreateExternal(PVM pVM, TMCLOCK enmClock, PFNTMTIMEREXT pfnCallback, void *pvUser, const char *pszDesc)
|
|---|
| 1532 | {
|
|---|
| 1533 | /*
|
|---|
| 1534 | * Allocate and init stuff.
|
|---|
| 1535 | */
|
|---|
| 1536 | PTMTIMERR3 pTimer;
|
|---|
| 1537 | int rc = tmr3TimerCreate(pVM, enmClock, pszDesc, &pTimer);
|
|---|
| 1538 | if (RT_SUCCESS(rc))
|
|---|
| 1539 | {
|
|---|
| 1540 | pTimer->enmType = TMTIMERTYPE_EXTERNAL;
|
|---|
| 1541 | pTimer->u.External.pfnTimer = pfnCallback;
|
|---|
| 1542 | pTimer->pvUser = pvUser;
|
|---|
| 1543 | Log(("TM: Created external timer %p clock %d callback %p '%s'\n", pTimer, enmClock, pfnCallback, pszDesc));
|
|---|
| 1544 | return pTimer;
|
|---|
| 1545 | }
|
|---|
| 1546 |
|
|---|
| 1547 | return NULL;
|
|---|
| 1548 | }
|
|---|
| 1549 |
|
|---|
| 1550 |
|
|---|
| 1551 | /**
|
|---|
| 1552 | * Destroy a timer
|
|---|
| 1553 | *
|
|---|
| 1554 | * @returns VBox status.
|
|---|
| 1555 | * @param pTimer Timer handle as returned by one of the create functions.
|
|---|
| 1556 | */
|
|---|
| 1557 | VMMR3DECL(int) TMR3TimerDestroy(PTMTIMER pTimer)
|
|---|
| 1558 | {
|
|---|
| 1559 | /*
|
|---|
| 1560 | * Be extra careful here.
|
|---|
| 1561 | */
|
|---|
| 1562 | if (!pTimer)
|
|---|
| 1563 | return VINF_SUCCESS;
|
|---|
| 1564 | AssertPtr(pTimer);
|
|---|
| 1565 | Assert((unsigned)pTimer->enmClock < (unsigned)TMCLOCK_MAX);
|
|---|
| 1566 |
|
|---|
| 1567 | PVM pVM = pTimer->CTX_SUFF(pVM);
|
|---|
| 1568 | PTMTIMERQUEUE pQueue = &pVM->tm.s.CTX_SUFF(paTimerQueues)[pTimer->enmClock];
|
|---|
| 1569 | bool fActive = false;
|
|---|
| 1570 | bool fPending = false;
|
|---|
| 1571 |
|
|---|
| 1572 | AssertMsg( !pTimer->pCritSect
|
|---|
| 1573 | || VMR3GetState(pVM) != VMSTATE_RUNNING
|
|---|
| 1574 | || PDMCritSectIsOwner(pTimer->pCritSect), ("%s\n", pTimer->pszDesc));
|
|---|
| 1575 |
|
|---|
| 1576 | /*
|
|---|
| 1577 | * The rest of the game happens behind the lock, just
|
|---|
| 1578 | * like create does. All the work is done here.
|
|---|
| 1579 | */
|
|---|
| 1580 | TM_LOCK_TIMERS(pVM);
|
|---|
| 1581 | for (int cRetries = 1000;; cRetries--)
|
|---|
| 1582 | {
|
|---|
| 1583 | /*
|
|---|
| 1584 | * Change to the DESTROY state.
|
|---|
| 1585 | */
|
|---|
| 1586 | TMTIMERSTATE const enmState = pTimer->enmState;
|
|---|
| 1587 | Log2(("TMTimerDestroy: %p:{.enmState=%s, .pszDesc='%s'} cRetries=%d\n",
|
|---|
| 1588 | pTimer, tmTimerState(enmState), R3STRING(pTimer->pszDesc), cRetries));
|
|---|
| 1589 | switch (enmState)
|
|---|
| 1590 | {
|
|---|
| 1591 | case TMTIMERSTATE_STOPPED:
|
|---|
| 1592 | case TMTIMERSTATE_EXPIRED_DELIVER:
|
|---|
| 1593 | break;
|
|---|
| 1594 |
|
|---|
| 1595 | case TMTIMERSTATE_ACTIVE:
|
|---|
| 1596 | fActive = true;
|
|---|
| 1597 | break;
|
|---|
| 1598 |
|
|---|
| 1599 | case TMTIMERSTATE_PENDING_STOP:
|
|---|
| 1600 | case TMTIMERSTATE_PENDING_STOP_SCHEDULE:
|
|---|
| 1601 | case TMTIMERSTATE_PENDING_RESCHEDULE:
|
|---|
| 1602 | fActive = true;
|
|---|
| 1603 | fPending = true;
|
|---|
| 1604 | break;
|
|---|
| 1605 |
|
|---|
| 1606 | case TMTIMERSTATE_PENDING_SCHEDULE:
|
|---|
| 1607 | fPending = true;
|
|---|
| 1608 | break;
|
|---|
| 1609 |
|
|---|
| 1610 | /*
|
|---|
| 1611 | * This shouldn't happen as the caller should make sure there are no races.
|
|---|
| 1612 | */
|
|---|
| 1613 | case TMTIMERSTATE_EXPIRED_GET_UNLINK:
|
|---|
| 1614 | case TMTIMERSTATE_PENDING_SCHEDULE_SET_EXPIRE:
|
|---|
| 1615 | case TMTIMERSTATE_PENDING_RESCHEDULE_SET_EXPIRE:
|
|---|
| 1616 | AssertMsgFailed(("%p:.enmState=%s %s\n", pTimer, tmTimerState(enmState), pTimer->pszDesc));
|
|---|
| 1617 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 1618 | if (!RTThreadYield())
|
|---|
| 1619 | RTThreadSleep(1);
|
|---|
| 1620 | AssertMsgReturn(cRetries > 0, ("Failed waiting for stable state. state=%d (%s)\n", pTimer->enmState, pTimer->pszDesc),
|
|---|
| 1621 | VERR_TM_UNSTABLE_STATE);
|
|---|
| 1622 | TM_LOCK_TIMERS(pVM);
|
|---|
| 1623 | continue;
|
|---|
| 1624 |
|
|---|
| 1625 | /*
|
|---|
| 1626 | * Invalid states.
|
|---|
| 1627 | */
|
|---|
| 1628 | case TMTIMERSTATE_FREE:
|
|---|
| 1629 | case TMTIMERSTATE_DESTROY:
|
|---|
| 1630 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 1631 | AssertLogRelMsgFailedReturn(("pTimer=%p %s\n", pTimer, tmTimerState(enmState)), VERR_TM_INVALID_STATE);
|
|---|
| 1632 |
|
|---|
| 1633 | default:
|
|---|
| 1634 | AssertMsgFailed(("Unknown timer state %d (%s)\n", enmState, R3STRING(pTimer->pszDesc)));
|
|---|
| 1635 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 1636 | return VERR_TM_UNKNOWN_STATE;
|
|---|
| 1637 | }
|
|---|
| 1638 |
|
|---|
| 1639 | /*
|
|---|
| 1640 | * Try switch to the destroy state.
|
|---|
| 1641 | * This should always succeed as the caller should make sure there are no race.
|
|---|
| 1642 | */
|
|---|
| 1643 | bool fRc;
|
|---|
| 1644 | TM_TRY_SET_STATE(pTimer, TMTIMERSTATE_DESTROY, enmState, fRc);
|
|---|
| 1645 | if (fRc)
|
|---|
| 1646 | break;
|
|---|
| 1647 | AssertMsgFailed(("%p:.enmState=%s %s\n", pTimer, tmTimerState(enmState), pTimer->pszDesc));
|
|---|
| 1648 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 1649 | AssertMsgReturn(cRetries > 0, ("Failed waiting for stable state. state=%d (%s)\n", pTimer->enmState, pTimer->pszDesc),
|
|---|
| 1650 | VERR_TM_UNSTABLE_STATE);
|
|---|
| 1651 | TM_LOCK_TIMERS(pVM);
|
|---|
| 1652 | }
|
|---|
| 1653 |
|
|---|
| 1654 | /*
|
|---|
| 1655 | * Unlink from the active list.
|
|---|
| 1656 | */
|
|---|
| 1657 | if (fActive)
|
|---|
| 1658 | {
|
|---|
| 1659 | const PTMTIMER pPrev = TMTIMER_GET_PREV(pTimer);
|
|---|
| 1660 | const PTMTIMER pNext = TMTIMER_GET_NEXT(pTimer);
|
|---|
| 1661 | if (pPrev)
|
|---|
| 1662 | TMTIMER_SET_NEXT(pPrev, pNext);
|
|---|
| 1663 | else
|
|---|
| 1664 | {
|
|---|
| 1665 | TMTIMER_SET_HEAD(pQueue, pNext);
|
|---|
| 1666 | pQueue->u64Expire = pNext ? pNext->u64Expire : INT64_MAX;
|
|---|
| 1667 | }
|
|---|
| 1668 | if (pNext)
|
|---|
| 1669 | TMTIMER_SET_PREV(pNext, pPrev);
|
|---|
| 1670 | pTimer->offNext = 0;
|
|---|
| 1671 | pTimer->offPrev = 0;
|
|---|
| 1672 | }
|
|---|
| 1673 |
|
|---|
| 1674 | /*
|
|---|
| 1675 | * Unlink from the schedule list by running it.
|
|---|
| 1676 | */
|
|---|
| 1677 | if (fPending)
|
|---|
| 1678 | {
|
|---|
| 1679 | Log3(("TMR3TimerDestroy: tmTimerQueueSchedule\n"));
|
|---|
| 1680 | STAM_PROFILE_START(&pVM->tm.s.CTX_SUFF_Z(StatScheduleOne), a);
|
|---|
| 1681 | Assert(pQueue->offSchedule);
|
|---|
| 1682 | tmTimerQueueSchedule(pVM, pQueue);
|
|---|
| 1683 | STAM_PROFILE_STOP(&pVM->tm.s.CTX_SUFF_Z(StatScheduleOne), a);
|
|---|
| 1684 | }
|
|---|
| 1685 |
|
|---|
| 1686 | /*
|
|---|
| 1687 | * Read to move the timer from the created list and onto the free list.
|
|---|
| 1688 | */
|
|---|
| 1689 | Assert(!pTimer->offNext); Assert(!pTimer->offPrev); Assert(!pTimer->offScheduleNext);
|
|---|
| 1690 |
|
|---|
| 1691 | /* unlink from created list */
|
|---|
| 1692 | if (pTimer->pBigPrev)
|
|---|
| 1693 | pTimer->pBigPrev->pBigNext = pTimer->pBigNext;
|
|---|
| 1694 | else
|
|---|
| 1695 | pVM->tm.s.pCreated = pTimer->pBigNext;
|
|---|
| 1696 | if (pTimer->pBigNext)
|
|---|
| 1697 | pTimer->pBigNext->pBigPrev = pTimer->pBigPrev;
|
|---|
| 1698 | pTimer->pBigNext = 0;
|
|---|
| 1699 | pTimer->pBigPrev = 0;
|
|---|
| 1700 |
|
|---|
| 1701 | /* free */
|
|---|
| 1702 | Log2(("TM: Inserting %p into the free list ahead of %p!\n", pTimer, pVM->tm.s.pFree));
|
|---|
| 1703 | TM_SET_STATE(pTimer, TMTIMERSTATE_FREE);
|
|---|
| 1704 | pTimer->pBigNext = pVM->tm.s.pFree;
|
|---|
| 1705 | pVM->tm.s.pFree = pTimer;
|
|---|
| 1706 |
|
|---|
| 1707 | #ifdef VBOX_STRICT
|
|---|
| 1708 | tmTimerQueuesSanityChecks(pVM, "TMR3TimerDestroy");
|
|---|
| 1709 | #endif
|
|---|
| 1710 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 1711 | return VINF_SUCCESS;
|
|---|
| 1712 | }
|
|---|
| 1713 |
|
|---|
| 1714 |
|
|---|
| 1715 | /**
|
|---|
| 1716 | * Destroy all timers owned by a device.
|
|---|
| 1717 | *
|
|---|
| 1718 | * @returns VBox status.
|
|---|
| 1719 | * @param pVM Pointer to the VM.
|
|---|
| 1720 | * @param pDevIns Device which timers should be destroyed.
|
|---|
| 1721 | */
|
|---|
| 1722 | VMM_INT_DECL(int) TMR3TimerDestroyDevice(PVM pVM, PPDMDEVINS pDevIns)
|
|---|
| 1723 | {
|
|---|
| 1724 | LogFlow(("TMR3TimerDestroyDevice: pDevIns=%p\n", pDevIns));
|
|---|
| 1725 | if (!pDevIns)
|
|---|
| 1726 | return VERR_INVALID_PARAMETER;
|
|---|
| 1727 |
|
|---|
| 1728 | TM_LOCK_TIMERS(pVM);
|
|---|
| 1729 | PTMTIMER pCur = pVM->tm.s.pCreated;
|
|---|
| 1730 | while (pCur)
|
|---|
| 1731 | {
|
|---|
| 1732 | PTMTIMER pDestroy = pCur;
|
|---|
| 1733 | pCur = pDestroy->pBigNext;
|
|---|
| 1734 | if ( pDestroy->enmType == TMTIMERTYPE_DEV
|
|---|
| 1735 | && pDestroy->u.Dev.pDevIns == pDevIns)
|
|---|
| 1736 | {
|
|---|
| 1737 | int rc = TMR3TimerDestroy(pDestroy);
|
|---|
| 1738 | AssertRC(rc);
|
|---|
| 1739 | }
|
|---|
| 1740 | }
|
|---|
| 1741 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 1742 |
|
|---|
| 1743 | LogFlow(("TMR3TimerDestroyDevice: returns VINF_SUCCESS\n"));
|
|---|
| 1744 | return VINF_SUCCESS;
|
|---|
| 1745 | }
|
|---|
| 1746 |
|
|---|
| 1747 |
|
|---|
| 1748 | /**
|
|---|
| 1749 | * Destroy all timers owned by a USB device.
|
|---|
| 1750 | *
|
|---|
| 1751 | * @returns VBox status.
|
|---|
| 1752 | * @param pVM Pointer to the VM.
|
|---|
| 1753 | * @param pUsbIns USB device which timers should be destroyed.
|
|---|
| 1754 | */
|
|---|
| 1755 | VMM_INT_DECL(int) TMR3TimerDestroyUsb(PVM pVM, PPDMUSBINS pUsbIns)
|
|---|
| 1756 | {
|
|---|
| 1757 | LogFlow(("TMR3TimerDestroyUsb: pUsbIns=%p\n", pUsbIns));
|
|---|
| 1758 | if (!pUsbIns)
|
|---|
| 1759 | return VERR_INVALID_PARAMETER;
|
|---|
| 1760 |
|
|---|
| 1761 | TM_LOCK_TIMERS(pVM);
|
|---|
| 1762 | PTMTIMER pCur = pVM->tm.s.pCreated;
|
|---|
| 1763 | while (pCur)
|
|---|
| 1764 | {
|
|---|
| 1765 | PTMTIMER pDestroy = pCur;
|
|---|
| 1766 | pCur = pDestroy->pBigNext;
|
|---|
| 1767 | if ( pDestroy->enmType == TMTIMERTYPE_USB
|
|---|
| 1768 | && pDestroy->u.Usb.pUsbIns == pUsbIns)
|
|---|
| 1769 | {
|
|---|
| 1770 | int rc = TMR3TimerDestroy(pDestroy);
|
|---|
| 1771 | AssertRC(rc);
|
|---|
| 1772 | }
|
|---|
| 1773 | }
|
|---|
| 1774 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 1775 |
|
|---|
| 1776 | LogFlow(("TMR3TimerDestroyUsb: returns VINF_SUCCESS\n"));
|
|---|
| 1777 | return VINF_SUCCESS;
|
|---|
| 1778 | }
|
|---|
| 1779 |
|
|---|
| 1780 |
|
|---|
| 1781 | /**
|
|---|
| 1782 | * Destroy all timers owned by a driver.
|
|---|
| 1783 | *
|
|---|
| 1784 | * @returns VBox status.
|
|---|
| 1785 | * @param pVM Pointer to the VM.
|
|---|
| 1786 | * @param pDrvIns Driver which timers should be destroyed.
|
|---|
| 1787 | */
|
|---|
| 1788 | VMM_INT_DECL(int) TMR3TimerDestroyDriver(PVM pVM, PPDMDRVINS pDrvIns)
|
|---|
| 1789 | {
|
|---|
| 1790 | LogFlow(("TMR3TimerDestroyDriver: pDrvIns=%p\n", pDrvIns));
|
|---|
| 1791 | if (!pDrvIns)
|
|---|
| 1792 | return VERR_INVALID_PARAMETER;
|
|---|
| 1793 |
|
|---|
| 1794 | TM_LOCK_TIMERS(pVM);
|
|---|
| 1795 | PTMTIMER pCur = pVM->tm.s.pCreated;
|
|---|
| 1796 | while (pCur)
|
|---|
| 1797 | {
|
|---|
| 1798 | PTMTIMER pDestroy = pCur;
|
|---|
| 1799 | pCur = pDestroy->pBigNext;
|
|---|
| 1800 | if ( pDestroy->enmType == TMTIMERTYPE_DRV
|
|---|
| 1801 | && pDestroy->u.Drv.pDrvIns == pDrvIns)
|
|---|
| 1802 | {
|
|---|
| 1803 | int rc = TMR3TimerDestroy(pDestroy);
|
|---|
| 1804 | AssertRC(rc);
|
|---|
| 1805 | }
|
|---|
| 1806 | }
|
|---|
| 1807 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 1808 |
|
|---|
| 1809 | LogFlow(("TMR3TimerDestroyDriver: returns VINF_SUCCESS\n"));
|
|---|
| 1810 | return VINF_SUCCESS;
|
|---|
| 1811 | }
|
|---|
| 1812 |
|
|---|
| 1813 |
|
|---|
| 1814 | /**
|
|---|
| 1815 | * Internal function for getting the clock time.
|
|---|
| 1816 | *
|
|---|
| 1817 | * @returns clock time.
|
|---|
| 1818 | * @param pVM Pointer to the VM.
|
|---|
| 1819 | * @param enmClock The clock.
|
|---|
| 1820 | */
|
|---|
| 1821 | DECLINLINE(uint64_t) tmClock(PVM pVM, TMCLOCK enmClock)
|
|---|
| 1822 | {
|
|---|
| 1823 | switch (enmClock)
|
|---|
| 1824 | {
|
|---|
| 1825 | case TMCLOCK_VIRTUAL: return TMVirtualGet(pVM);
|
|---|
| 1826 | case TMCLOCK_VIRTUAL_SYNC: return TMVirtualSyncGet(pVM);
|
|---|
| 1827 | case TMCLOCK_REAL: return TMRealGet(pVM);
|
|---|
| 1828 | case TMCLOCK_TSC: return TMCpuTickGet(&pVM->aCpus[0] /* just take VCPU 0 */);
|
|---|
| 1829 | default:
|
|---|
| 1830 | AssertMsgFailed(("enmClock=%d\n", enmClock));
|
|---|
| 1831 | return ~(uint64_t)0;
|
|---|
| 1832 | }
|
|---|
| 1833 | }
|
|---|
| 1834 |
|
|---|
| 1835 |
|
|---|
| 1836 | /**
|
|---|
| 1837 | * Checks if the sync queue has one or more expired timers.
|
|---|
| 1838 | *
|
|---|
| 1839 | * @returns true / false.
|
|---|
| 1840 | *
|
|---|
| 1841 | * @param pVM Pointer to the VM.
|
|---|
| 1842 | * @param enmClock The queue.
|
|---|
| 1843 | */
|
|---|
| 1844 | DECLINLINE(bool) tmR3HasExpiredTimer(PVM pVM, TMCLOCK enmClock)
|
|---|
| 1845 | {
|
|---|
| 1846 | const uint64_t u64Expire = pVM->tm.s.CTX_SUFF(paTimerQueues)[enmClock].u64Expire;
|
|---|
| 1847 | return u64Expire != INT64_MAX && u64Expire <= tmClock(pVM, enmClock);
|
|---|
| 1848 | }
|
|---|
| 1849 |
|
|---|
| 1850 |
|
|---|
| 1851 | /**
|
|---|
| 1852 | * Checks for expired timers in all the queues.
|
|---|
| 1853 | *
|
|---|
| 1854 | * @returns true / false.
|
|---|
| 1855 | * @param pVM Pointer to the VM.
|
|---|
| 1856 | */
|
|---|
| 1857 | DECLINLINE(bool) tmR3AnyExpiredTimers(PVM pVM)
|
|---|
| 1858 | {
|
|---|
| 1859 | /*
|
|---|
| 1860 | * Combine the time calculation for the first two since we're not on EMT
|
|---|
| 1861 | * TMVirtualSyncGet only permits EMT.
|
|---|
| 1862 | */
|
|---|
| 1863 | uint64_t u64Now = TMVirtualGetNoCheck(pVM);
|
|---|
| 1864 | if (pVM->tm.s.CTX_SUFF(paTimerQueues)[TMCLOCK_VIRTUAL].u64Expire <= u64Now)
|
|---|
| 1865 | return true;
|
|---|
| 1866 | u64Now = pVM->tm.s.fVirtualSyncTicking
|
|---|
| 1867 | ? u64Now - pVM->tm.s.offVirtualSync
|
|---|
| 1868 | : pVM->tm.s.u64VirtualSync;
|
|---|
| 1869 | if (pVM->tm.s.CTX_SUFF(paTimerQueues)[TMCLOCK_VIRTUAL_SYNC].u64Expire <= u64Now)
|
|---|
| 1870 | return true;
|
|---|
| 1871 |
|
|---|
| 1872 | /*
|
|---|
| 1873 | * The remaining timers.
|
|---|
| 1874 | */
|
|---|
| 1875 | if (tmR3HasExpiredTimer(pVM, TMCLOCK_REAL))
|
|---|
| 1876 | return true;
|
|---|
| 1877 | if (tmR3HasExpiredTimer(pVM, TMCLOCK_TSC))
|
|---|
| 1878 | return true;
|
|---|
| 1879 | return false;
|
|---|
| 1880 | }
|
|---|
| 1881 |
|
|---|
| 1882 |
|
|---|
| 1883 | /**
|
|---|
| 1884 | * Schedule timer callback.
|
|---|
| 1885 | *
|
|---|
| 1886 | * @param pTimer Timer handle.
|
|---|
| 1887 | * @param pvUser Pointer to the VM.
|
|---|
| 1888 | * @thread Timer thread.
|
|---|
| 1889 | *
|
|---|
| 1890 | * @remark We cannot do the scheduling and queues running from a timer handler
|
|---|
| 1891 | * since it's not executing in EMT, and even if it was it would be async
|
|---|
| 1892 | * and we wouldn't know the state of the affairs.
|
|---|
| 1893 | * So, we'll just raise the timer FF and force any REM execution to exit.
|
|---|
| 1894 | */
|
|---|
| 1895 | static DECLCALLBACK(void) tmR3TimerCallback(PRTTIMER pTimer, void *pvUser, uint64_t /*iTick*/)
|
|---|
| 1896 | {
|
|---|
| 1897 | PVM pVM = (PVM)pvUser;
|
|---|
| 1898 | PVMCPU pVCpuDst = &pVM->aCpus[pVM->tm.s.idTimerCpu];
|
|---|
| 1899 | NOREF(pTimer);
|
|---|
| 1900 |
|
|---|
| 1901 | AssertCompile(TMCLOCK_MAX == 4);
|
|---|
| 1902 | #ifdef DEBUG_Sander /* very annoying, keep it private. */
|
|---|
| 1903 | if (VMCPU_FF_IS_SET(pVCpuDst, VMCPU_FF_TIMER))
|
|---|
| 1904 | Log(("tmR3TimerCallback: timer event still pending!!\n"));
|
|---|
| 1905 | #endif
|
|---|
| 1906 | if ( !VMCPU_FF_IS_SET(pVCpuDst, VMCPU_FF_TIMER)
|
|---|
| 1907 | && ( pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL_SYNC].offSchedule /** @todo FIXME - reconsider offSchedule as a reason for running the timer queues. */
|
|---|
| 1908 | || pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL].offSchedule
|
|---|
| 1909 | || pVM->tm.s.paTimerQueuesR3[TMCLOCK_REAL].offSchedule
|
|---|
| 1910 | || pVM->tm.s.paTimerQueuesR3[TMCLOCK_TSC].offSchedule
|
|---|
| 1911 | || tmR3AnyExpiredTimers(pVM)
|
|---|
| 1912 | )
|
|---|
| 1913 | && !VMCPU_FF_IS_SET(pVCpuDst, VMCPU_FF_TIMER)
|
|---|
| 1914 | && !pVM->tm.s.fRunningQueues
|
|---|
| 1915 | )
|
|---|
| 1916 | {
|
|---|
| 1917 | Log5(("TM(%u): FF: 0 -> 1\n", __LINE__));
|
|---|
| 1918 | VMCPU_FF_SET(pVCpuDst, VMCPU_FF_TIMER);
|
|---|
| 1919 | #ifdef VBOX_WITH_REM
|
|---|
| 1920 | REMR3NotifyTimerPending(pVM, pVCpuDst);
|
|---|
| 1921 | #endif
|
|---|
| 1922 | VMR3NotifyCpuFFU(pVCpuDst->pUVCpu, VMNOTIFYFF_FLAGS_DONE_REM /** @todo | VMNOTIFYFF_FLAGS_POKE ?*/);
|
|---|
| 1923 | STAM_COUNTER_INC(&pVM->tm.s.StatTimerCallbackSetFF);
|
|---|
| 1924 | }
|
|---|
| 1925 | }
|
|---|
| 1926 |
|
|---|
| 1927 |
|
|---|
| 1928 | /**
|
|---|
| 1929 | * Schedules and runs any pending timers.
|
|---|
| 1930 | *
|
|---|
| 1931 | * This is normally called from a forced action handler in EMT.
|
|---|
| 1932 | *
|
|---|
| 1933 | * @param pVM The VM to run the timers for.
|
|---|
| 1934 | *
|
|---|
| 1935 | * @thread EMT (actually EMT0, but we fend off the others)
|
|---|
| 1936 | */
|
|---|
| 1937 | VMMR3DECL(void) TMR3TimerQueuesDo(PVM pVM)
|
|---|
| 1938 | {
|
|---|
| 1939 | /*
|
|---|
| 1940 | * Only the dedicated timer EMT should do stuff here.
|
|---|
| 1941 | * (fRunningQueues is only used as an indicator.)
|
|---|
| 1942 | */
|
|---|
| 1943 | Assert(pVM->tm.s.idTimerCpu < pVM->cCpus);
|
|---|
| 1944 | PVMCPU pVCpuDst = &pVM->aCpus[pVM->tm.s.idTimerCpu];
|
|---|
| 1945 | if (VMMGetCpu(pVM) != pVCpuDst)
|
|---|
| 1946 | {
|
|---|
| 1947 | Assert(pVM->cCpus > 1);
|
|---|
| 1948 | return;
|
|---|
| 1949 | }
|
|---|
| 1950 | STAM_PROFILE_START(&pVM->tm.s.StatDoQueues, a);
|
|---|
| 1951 | Log2(("TMR3TimerQueuesDo:\n"));
|
|---|
| 1952 | Assert(!pVM->tm.s.fRunningQueues);
|
|---|
| 1953 | ASMAtomicWriteBool(&pVM->tm.s.fRunningQueues, true);
|
|---|
| 1954 | TM_LOCK_TIMERS(pVM);
|
|---|
| 1955 |
|
|---|
| 1956 | /*
|
|---|
| 1957 | * Process the queues.
|
|---|
| 1958 | */
|
|---|
| 1959 | AssertCompile(TMCLOCK_MAX == 4);
|
|---|
| 1960 |
|
|---|
| 1961 | /* TMCLOCK_VIRTUAL_SYNC (see also TMR3VirtualSyncFF) */
|
|---|
| 1962 | STAM_PROFILE_ADV_START(&pVM->tm.s.aStatDoQueues[TMCLOCK_VIRTUAL_SYNC], s1);
|
|---|
| 1963 | PDMCritSectEnter(&pVM->tm.s.VirtualSyncLock, VERR_IGNORED);
|
|---|
| 1964 | ASMAtomicWriteBool(&pVM->tm.s.fRunningVirtualSyncQueue, true);
|
|---|
| 1965 | VMCPU_FF_CLEAR(pVCpuDst, VMCPU_FF_TIMER); /* Clear the FF once we started working for real. */
|
|---|
| 1966 |
|
|---|
| 1967 | Assert(!pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL_SYNC].offSchedule);
|
|---|
| 1968 | tmR3TimerQueueRunVirtualSync(pVM);
|
|---|
| 1969 | if (pVM->tm.s.fVirtualSyncTicking) /** @todo move into tmR3TimerQueueRunVirtualSync - FIXME */
|
|---|
| 1970 | VM_FF_CLEAR(pVM, VM_FF_TM_VIRTUAL_SYNC);
|
|---|
| 1971 |
|
|---|
| 1972 | ASMAtomicWriteBool(&pVM->tm.s.fRunningVirtualSyncQueue, false);
|
|---|
| 1973 | PDMCritSectLeave(&pVM->tm.s.VirtualSyncLock);
|
|---|
| 1974 | STAM_PROFILE_ADV_STOP(&pVM->tm.s.aStatDoQueues[TMCLOCK_VIRTUAL_SYNC], s1);
|
|---|
| 1975 |
|
|---|
| 1976 | /* TMCLOCK_VIRTUAL */
|
|---|
| 1977 | STAM_PROFILE_ADV_START(&pVM->tm.s.aStatDoQueues[TMCLOCK_VIRTUAL], s2);
|
|---|
| 1978 | if (pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL].offSchedule)
|
|---|
| 1979 | tmTimerQueueSchedule(pVM, &pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL]);
|
|---|
| 1980 | tmR3TimerQueueRun(pVM, &pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL]);
|
|---|
| 1981 | STAM_PROFILE_ADV_STOP(&pVM->tm.s.aStatDoQueues[TMCLOCK_VIRTUAL], s2);
|
|---|
| 1982 |
|
|---|
| 1983 | /* TMCLOCK_TSC */
|
|---|
| 1984 | Assert(!pVM->tm.s.paTimerQueuesR3[TMCLOCK_TSC].offActive); /* not used */
|
|---|
| 1985 |
|
|---|
| 1986 | /* TMCLOCK_REAL */
|
|---|
| 1987 | STAM_PROFILE_ADV_START(&pVM->tm.s.aStatDoQueues[TMCLOCK_REAL], s3);
|
|---|
| 1988 | if (pVM->tm.s.paTimerQueuesR3[TMCLOCK_REAL].offSchedule)
|
|---|
| 1989 | tmTimerQueueSchedule(pVM, &pVM->tm.s.paTimerQueuesR3[TMCLOCK_REAL]);
|
|---|
| 1990 | tmR3TimerQueueRun(pVM, &pVM->tm.s.paTimerQueuesR3[TMCLOCK_REAL]);
|
|---|
| 1991 | STAM_PROFILE_ADV_STOP(&pVM->tm.s.aStatDoQueues[TMCLOCK_REAL], s3);
|
|---|
| 1992 |
|
|---|
| 1993 | #ifdef VBOX_STRICT
|
|---|
| 1994 | /* check that we didn't screw up. */
|
|---|
| 1995 | tmTimerQueuesSanityChecks(pVM, "TMR3TimerQueuesDo");
|
|---|
| 1996 | #endif
|
|---|
| 1997 |
|
|---|
| 1998 | /* done */
|
|---|
| 1999 | Log2(("TMR3TimerQueuesDo: returns void\n"));
|
|---|
| 2000 | ASMAtomicWriteBool(&pVM->tm.s.fRunningQueues, false);
|
|---|
| 2001 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 2002 | STAM_PROFILE_STOP(&pVM->tm.s.StatDoQueues, a);
|
|---|
| 2003 | }
|
|---|
| 2004 |
|
|---|
| 2005 | //RT_C_DECLS_BEGIN
|
|---|
| 2006 | //int iomLock(PVM pVM);
|
|---|
| 2007 | //void iomUnlock(PVM pVM);
|
|---|
| 2008 | //RT_C_DECLS_END
|
|---|
| 2009 |
|
|---|
| 2010 |
|
|---|
| 2011 | /**
|
|---|
| 2012 | * Schedules and runs any pending times in the specified queue.
|
|---|
| 2013 | *
|
|---|
| 2014 | * This is normally called from a forced action handler in EMT.
|
|---|
| 2015 | *
|
|---|
| 2016 | * @param pVM The VM to run the timers for.
|
|---|
| 2017 | * @param pQueue The queue to run.
|
|---|
| 2018 | */
|
|---|
| 2019 | static void tmR3TimerQueueRun(PVM pVM, PTMTIMERQUEUE pQueue)
|
|---|
| 2020 | {
|
|---|
| 2021 | VM_ASSERT_EMT(pVM);
|
|---|
| 2022 |
|
|---|
| 2023 | /*
|
|---|
| 2024 | * Run timers.
|
|---|
| 2025 | *
|
|---|
| 2026 | * We check the clock once and run all timers which are ACTIVE
|
|---|
| 2027 | * and have an expire time less or equal to the time we read.
|
|---|
| 2028 | *
|
|---|
| 2029 | * N.B. A generic unlink must be applied since other threads
|
|---|
| 2030 | * are allowed to mess with any active timer at any time.
|
|---|
| 2031 | * However, we only allow EMT to handle EXPIRED_PENDING
|
|---|
| 2032 | * timers, thus enabling the timer handler function to
|
|---|
| 2033 | * arm the timer again.
|
|---|
| 2034 | */
|
|---|
| 2035 | PTMTIMER pNext = TMTIMER_GET_HEAD(pQueue);
|
|---|
| 2036 | if (!pNext)
|
|---|
| 2037 | return;
|
|---|
| 2038 | const uint64_t u64Now = tmClock(pVM, pQueue->enmClock);
|
|---|
| 2039 | while (pNext && pNext->u64Expire <= u64Now)
|
|---|
| 2040 | {
|
|---|
| 2041 | PTMTIMER pTimer = pNext;
|
|---|
| 2042 | pNext = TMTIMER_GET_NEXT(pTimer);
|
|---|
| 2043 | PPDMCRITSECT pCritSect = pTimer->pCritSect;
|
|---|
| 2044 | if (pCritSect)
|
|---|
| 2045 | PDMCritSectEnter(pCritSect, VERR_IGNORED);
|
|---|
| 2046 | Log2(("tmR3TimerQueueRun: %p:{.enmState=%s, .enmClock=%d, .enmType=%d, u64Expire=%llx (now=%llx) .pszDesc=%s}\n",
|
|---|
| 2047 | pTimer, tmTimerState(pTimer->enmState), pTimer->enmClock, pTimer->enmType, pTimer->u64Expire, u64Now, pTimer->pszDesc));
|
|---|
| 2048 | bool fRc;
|
|---|
| 2049 | TM_TRY_SET_STATE(pTimer, TMTIMERSTATE_EXPIRED_GET_UNLINK, TMTIMERSTATE_ACTIVE, fRc);
|
|---|
| 2050 | if (fRc)
|
|---|
| 2051 | {
|
|---|
| 2052 | Assert(!pTimer->offScheduleNext); /* this can trigger falsely */
|
|---|
| 2053 |
|
|---|
| 2054 | /* unlink */
|
|---|
| 2055 | const PTMTIMER pPrev = TMTIMER_GET_PREV(pTimer);
|
|---|
| 2056 | if (pPrev)
|
|---|
| 2057 | TMTIMER_SET_NEXT(pPrev, pNext);
|
|---|
| 2058 | else
|
|---|
| 2059 | {
|
|---|
| 2060 | TMTIMER_SET_HEAD(pQueue, pNext);
|
|---|
| 2061 | pQueue->u64Expire = pNext ? pNext->u64Expire : INT64_MAX;
|
|---|
| 2062 | }
|
|---|
| 2063 | if (pNext)
|
|---|
| 2064 | TMTIMER_SET_PREV(pNext, pPrev);
|
|---|
| 2065 | pTimer->offNext = 0;
|
|---|
| 2066 | pTimer->offPrev = 0;
|
|---|
| 2067 |
|
|---|
| 2068 | /* fire */
|
|---|
| 2069 | TM_SET_STATE(pTimer, TMTIMERSTATE_EXPIRED_DELIVER);
|
|---|
| 2070 | switch (pTimer->enmType)
|
|---|
| 2071 | {
|
|---|
| 2072 | case TMTIMERTYPE_DEV: pTimer->u.Dev.pfnTimer(pTimer->u.Dev.pDevIns, pTimer, pTimer->pvUser); break;
|
|---|
| 2073 | case TMTIMERTYPE_USB: pTimer->u.Usb.pfnTimer(pTimer->u.Usb.pUsbIns, pTimer, pTimer->pvUser); break;
|
|---|
| 2074 | case TMTIMERTYPE_DRV: pTimer->u.Drv.pfnTimer(pTimer->u.Drv.pDrvIns, pTimer, pTimer->pvUser); break;
|
|---|
| 2075 | case TMTIMERTYPE_INTERNAL: pTimer->u.Internal.pfnTimer(pVM, pTimer, pTimer->pvUser); break;
|
|---|
| 2076 | case TMTIMERTYPE_EXTERNAL: pTimer->u.External.pfnTimer(pTimer->pvUser); break;
|
|---|
| 2077 | default:
|
|---|
| 2078 | AssertMsgFailed(("Invalid timer type %d (%s)\n", pTimer->enmType, pTimer->pszDesc));
|
|---|
| 2079 | break;
|
|---|
| 2080 | }
|
|---|
| 2081 |
|
|---|
| 2082 | /* change the state if it wasn't changed already in the handler. */
|
|---|
| 2083 | TM_TRY_SET_STATE(pTimer, TMTIMERSTATE_STOPPED, TMTIMERSTATE_EXPIRED_DELIVER, fRc);
|
|---|
| 2084 | Log2(("tmR3TimerQueueRun: new state %s\n", tmTimerState(pTimer->enmState)));
|
|---|
| 2085 | }
|
|---|
| 2086 | if (pCritSect)
|
|---|
| 2087 | PDMCritSectLeave(pCritSect);
|
|---|
| 2088 | } /* run loop */
|
|---|
| 2089 | }
|
|---|
| 2090 |
|
|---|
| 2091 |
|
|---|
| 2092 | /**
|
|---|
| 2093 | * Schedules and runs any pending times in the timer queue for the
|
|---|
| 2094 | * synchronous virtual clock.
|
|---|
| 2095 | *
|
|---|
| 2096 | * This scheduling is a bit different from the other queues as it need
|
|---|
| 2097 | * to implement the special requirements of the timer synchronous virtual
|
|---|
| 2098 | * clock, thus this 2nd queue run function.
|
|---|
| 2099 | *
|
|---|
| 2100 | * @param pVM The VM to run the timers for.
|
|---|
| 2101 | *
|
|---|
| 2102 | * @remarks The caller must the Virtual Sync lock. Owning the TM lock is no
|
|---|
| 2103 | * longer important.
|
|---|
| 2104 | */
|
|---|
| 2105 | static void tmR3TimerQueueRunVirtualSync(PVM pVM)
|
|---|
| 2106 | {
|
|---|
| 2107 | PTMTIMERQUEUE const pQueue = &pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL_SYNC];
|
|---|
| 2108 | VM_ASSERT_EMT(pVM);
|
|---|
| 2109 | Assert(PDMCritSectIsOwner(&pVM->tm.s.VirtualSyncLock));
|
|---|
| 2110 |
|
|---|
| 2111 | /*
|
|---|
| 2112 | * Any timers?
|
|---|
| 2113 | */
|
|---|
| 2114 | PTMTIMER pNext = TMTIMER_GET_HEAD(pQueue);
|
|---|
| 2115 | if (RT_UNLIKELY(!pNext))
|
|---|
| 2116 | {
|
|---|
| 2117 | Assert(pVM->tm.s.fVirtualSyncTicking || !pVM->tm.s.cVirtualTicking);
|
|---|
| 2118 | return;
|
|---|
| 2119 | }
|
|---|
| 2120 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncRun);
|
|---|
| 2121 |
|
|---|
| 2122 | /*
|
|---|
| 2123 | * Calculate the time frame for which we will dispatch timers.
|
|---|
| 2124 | *
|
|---|
| 2125 | * We use a time frame ranging from the current sync time (which is most likely the
|
|---|
| 2126 | * same as the head timer) and some configurable period (100000ns) up towards the
|
|---|
| 2127 | * current virtual time. This period might also need to be restricted by the catch-up
|
|---|
| 2128 | * rate so frequent calls to this function won't accelerate the time too much, however
|
|---|
| 2129 | * this will be implemented at a later point if necessary.
|
|---|
| 2130 | *
|
|---|
| 2131 | * Without this frame we would 1) having to run timers much more frequently
|
|---|
| 2132 | * and 2) lag behind at a steady rate.
|
|---|
| 2133 | */
|
|---|
| 2134 | const uint64_t u64VirtualNow = TMVirtualGetNoCheck(pVM);
|
|---|
| 2135 | uint64_t const offSyncGivenUp = pVM->tm.s.offVirtualSyncGivenUp;
|
|---|
| 2136 | uint64_t u64Now;
|
|---|
| 2137 | if (!pVM->tm.s.fVirtualSyncTicking)
|
|---|
| 2138 | {
|
|---|
| 2139 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncRunStoppedAlready);
|
|---|
| 2140 | u64Now = pVM->tm.s.u64VirtualSync;
|
|---|
| 2141 | Assert(u64Now <= pNext->u64Expire);
|
|---|
| 2142 | }
|
|---|
| 2143 | else
|
|---|
| 2144 | {
|
|---|
| 2145 | /* Calc 'now'. */
|
|---|
| 2146 | bool fStopCatchup = false;
|
|---|
| 2147 | bool fUpdateStuff = false;
|
|---|
| 2148 | uint64_t off = pVM->tm.s.offVirtualSync;
|
|---|
| 2149 | if (pVM->tm.s.fVirtualSyncCatchUp)
|
|---|
| 2150 | {
|
|---|
| 2151 | uint64_t u64Delta = u64VirtualNow - pVM->tm.s.u64VirtualSyncCatchUpPrev;
|
|---|
| 2152 | if (RT_LIKELY(!(u64Delta >> 32)))
|
|---|
| 2153 | {
|
|---|
| 2154 | uint64_t u64Sub = ASMMultU64ByU32DivByU32(u64Delta, pVM->tm.s.u32VirtualSyncCatchUpPercentage, 100);
|
|---|
| 2155 | if (off > u64Sub + offSyncGivenUp)
|
|---|
| 2156 | {
|
|---|
| 2157 | off -= u64Sub;
|
|---|
| 2158 | Log4(("TM: %'RU64/-%'8RU64: sub %'RU64 [tmR3TimerQueueRunVirtualSync]\n", u64VirtualNow - off, off - offSyncGivenUp, u64Sub));
|
|---|
| 2159 | }
|
|---|
| 2160 | else
|
|---|
| 2161 | {
|
|---|
| 2162 | STAM_PROFILE_ADV_STOP(&pVM->tm.s.StatVirtualSyncCatchup, c);
|
|---|
| 2163 | fStopCatchup = true;
|
|---|
| 2164 | off = offSyncGivenUp;
|
|---|
| 2165 | }
|
|---|
| 2166 | fUpdateStuff = true;
|
|---|
| 2167 | }
|
|---|
| 2168 | }
|
|---|
| 2169 | u64Now = u64VirtualNow - off;
|
|---|
| 2170 |
|
|---|
| 2171 | /* Adjust against last returned time. */
|
|---|
| 2172 | uint64_t u64Last = ASMAtomicUoReadU64(&pVM->tm.s.u64VirtualSync);
|
|---|
| 2173 | if (u64Last > u64Now)
|
|---|
| 2174 | {
|
|---|
| 2175 | u64Now = u64Last + 1;
|
|---|
| 2176 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncGetAdjLast);
|
|---|
| 2177 | }
|
|---|
| 2178 |
|
|---|
| 2179 | /* Check if stopped by expired timer. */
|
|---|
| 2180 | uint64_t const u64Expire = pNext->u64Expire;
|
|---|
| 2181 | if (u64Now >= u64Expire)
|
|---|
| 2182 | {
|
|---|
| 2183 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncRunStop);
|
|---|
| 2184 | u64Now = u64Expire;
|
|---|
| 2185 | ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSync, u64Now);
|
|---|
| 2186 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncTicking, false);
|
|---|
| 2187 | Log4(("TM: %'RU64/-%'8RU64: exp tmr [tmR3TimerQueueRunVirtualSync]\n", u64Now, u64VirtualNow - u64Now - offSyncGivenUp));
|
|---|
| 2188 | }
|
|---|
| 2189 | else
|
|---|
| 2190 | {
|
|---|
| 2191 | ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSync, u64Now);
|
|---|
| 2192 | if (fUpdateStuff)
|
|---|
| 2193 | {
|
|---|
| 2194 | ASMAtomicWriteU64(&pVM->tm.s.offVirtualSync, off);
|
|---|
| 2195 | ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSyncCatchUpPrev, u64VirtualNow);
|
|---|
| 2196 | ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSync, u64Now);
|
|---|
| 2197 | if (fStopCatchup)
|
|---|
| 2198 | {
|
|---|
| 2199 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, false);
|
|---|
| 2200 | Log4(("TM: %'RU64/0: caught up [tmR3TimerQueueRunVirtualSync]\n", u64VirtualNow));
|
|---|
| 2201 | }
|
|---|
| 2202 | }
|
|---|
| 2203 | }
|
|---|
| 2204 | }
|
|---|
| 2205 |
|
|---|
| 2206 | /* calc end of frame. */
|
|---|
| 2207 | uint64_t u64Max = u64Now + pVM->tm.s.u32VirtualSyncScheduleSlack;
|
|---|
| 2208 | if (u64Max > u64VirtualNow - offSyncGivenUp)
|
|---|
| 2209 | u64Max = u64VirtualNow - offSyncGivenUp;
|
|---|
| 2210 |
|
|---|
| 2211 | /* assert sanity */
|
|---|
| 2212 | Assert(u64Now <= u64VirtualNow - offSyncGivenUp);
|
|---|
| 2213 | Assert(u64Max <= u64VirtualNow - offSyncGivenUp);
|
|---|
| 2214 | Assert(u64Now <= u64Max);
|
|---|
| 2215 | Assert(offSyncGivenUp == pVM->tm.s.offVirtualSyncGivenUp);
|
|---|
| 2216 |
|
|---|
| 2217 | /*
|
|---|
| 2218 | * Process the expired timers moving the clock along as we progress.
|
|---|
| 2219 | */
|
|---|
| 2220 | #ifdef VBOX_STRICT
|
|---|
| 2221 | uint64_t u64Prev = u64Now; NOREF(u64Prev);
|
|---|
| 2222 | #endif
|
|---|
| 2223 | while (pNext && pNext->u64Expire <= u64Max)
|
|---|
| 2224 | {
|
|---|
| 2225 | /* Advance */
|
|---|
| 2226 | PTMTIMER pTimer = pNext;
|
|---|
| 2227 | pNext = TMTIMER_GET_NEXT(pTimer);
|
|---|
| 2228 |
|
|---|
| 2229 | /* Take the associated lock. */
|
|---|
| 2230 | PPDMCRITSECT pCritSect = pTimer->pCritSect;
|
|---|
| 2231 | if (pCritSect)
|
|---|
| 2232 | PDMCritSectEnter(pCritSect, VERR_IGNORED);
|
|---|
| 2233 |
|
|---|
| 2234 | Log2(("tmR3TimerQueueRun: %p:{.enmState=%s, .enmClock=%d, .enmType=%d, u64Expire=%llx (now=%llx) .pszDesc=%s}\n",
|
|---|
| 2235 | pTimer, tmTimerState(pTimer->enmState), pTimer->enmClock, pTimer->enmType, pTimer->u64Expire, u64Now, pTimer->pszDesc));
|
|---|
| 2236 |
|
|---|
| 2237 | /* Advance the clock - don't permit timers to be out of order or armed
|
|---|
| 2238 | in the 'past'. */
|
|---|
| 2239 | #ifdef VBOX_STRICT
|
|---|
| 2240 | AssertMsg(pTimer->u64Expire >= u64Prev, ("%'RU64 < %'RU64 %s\n", pTimer->u64Expire, u64Prev, pTimer->pszDesc));
|
|---|
| 2241 | u64Prev = pTimer->u64Expire;
|
|---|
| 2242 | #endif
|
|---|
| 2243 | ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSync, pTimer->u64Expire);
|
|---|
| 2244 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncTicking, false);
|
|---|
| 2245 |
|
|---|
| 2246 | /* Unlink it, change the state and do the callout. */
|
|---|
| 2247 | tmTimerQueueUnlinkActive(pQueue, pTimer);
|
|---|
| 2248 | TM_SET_STATE(pTimer, TMTIMERSTATE_EXPIRED_DELIVER);
|
|---|
| 2249 | switch (pTimer->enmType)
|
|---|
| 2250 | {
|
|---|
| 2251 | case TMTIMERTYPE_DEV: pTimer->u.Dev.pfnTimer(pTimer->u.Dev.pDevIns, pTimer, pTimer->pvUser); break;
|
|---|
| 2252 | case TMTIMERTYPE_USB: pTimer->u.Usb.pfnTimer(pTimer->u.Usb.pUsbIns, pTimer, pTimer->pvUser); break;
|
|---|
| 2253 | case TMTIMERTYPE_DRV: pTimer->u.Drv.pfnTimer(pTimer->u.Drv.pDrvIns, pTimer, pTimer->pvUser); break;
|
|---|
| 2254 | case TMTIMERTYPE_INTERNAL: pTimer->u.Internal.pfnTimer(pVM, pTimer, pTimer->pvUser); break;
|
|---|
| 2255 | case TMTIMERTYPE_EXTERNAL: pTimer->u.External.pfnTimer(pTimer->pvUser); break;
|
|---|
| 2256 | default:
|
|---|
| 2257 | AssertMsgFailed(("Invalid timer type %d (%s)\n", pTimer->enmType, pTimer->pszDesc));
|
|---|
| 2258 | break;
|
|---|
| 2259 | }
|
|---|
| 2260 |
|
|---|
| 2261 | /* Change the state if it wasn't changed already in the handler.
|
|---|
| 2262 | Reset the Hz hint too since this is the same as TMTimerStop. */
|
|---|
| 2263 | bool fRc;
|
|---|
| 2264 | TM_TRY_SET_STATE(pTimer, TMTIMERSTATE_STOPPED, TMTIMERSTATE_EXPIRED_DELIVER, fRc);
|
|---|
| 2265 | if (fRc && pTimer->uHzHint)
|
|---|
| 2266 | {
|
|---|
| 2267 | if (pTimer->uHzHint >= pVM->tm.s.uMaxHzHint)
|
|---|
| 2268 | ASMAtomicWriteBool(&pVM->tm.s.fHzHintNeedsUpdating, true);
|
|---|
| 2269 | pTimer->uHzHint = 0;
|
|---|
| 2270 | }
|
|---|
| 2271 | Log2(("tmR3TimerQueueRun: new state %s\n", tmTimerState(pTimer->enmState)));
|
|---|
| 2272 |
|
|---|
| 2273 | /* Leave the associated lock. */
|
|---|
| 2274 | if (pCritSect)
|
|---|
| 2275 | PDMCritSectLeave(pCritSect);
|
|---|
| 2276 | } /* run loop */
|
|---|
| 2277 |
|
|---|
| 2278 |
|
|---|
| 2279 | /*
|
|---|
| 2280 | * Restart the clock if it was stopped to serve any timers,
|
|---|
| 2281 | * and start/adjust catch-up if necessary.
|
|---|
| 2282 | */
|
|---|
| 2283 | if ( !pVM->tm.s.fVirtualSyncTicking
|
|---|
| 2284 | && pVM->tm.s.cVirtualTicking)
|
|---|
| 2285 | {
|
|---|
| 2286 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncRunRestart);
|
|---|
| 2287 |
|
|---|
| 2288 | /* calc the slack we've handed out. */
|
|---|
| 2289 | const uint64_t u64VirtualNow2 = TMVirtualGetNoCheck(pVM);
|
|---|
| 2290 | Assert(u64VirtualNow2 >= u64VirtualNow);
|
|---|
| 2291 | AssertMsg(pVM->tm.s.u64VirtualSync >= u64Now, ("%'RU64 < %'RU64\n", pVM->tm.s.u64VirtualSync, u64Now));
|
|---|
| 2292 | const uint64_t offSlack = pVM->tm.s.u64VirtualSync - u64Now;
|
|---|
| 2293 | STAM_STATS({
|
|---|
| 2294 | if (offSlack)
|
|---|
| 2295 | {
|
|---|
| 2296 | PSTAMPROFILE p = &pVM->tm.s.StatVirtualSyncRunSlack;
|
|---|
| 2297 | p->cPeriods++;
|
|---|
| 2298 | p->cTicks += offSlack;
|
|---|
| 2299 | if (p->cTicksMax < offSlack) p->cTicksMax = offSlack;
|
|---|
| 2300 | if (p->cTicksMin > offSlack) p->cTicksMin = offSlack;
|
|---|
| 2301 | }
|
|---|
| 2302 | });
|
|---|
| 2303 |
|
|---|
| 2304 | /* Let the time run a little bit while we were busy running timers(?). */
|
|---|
| 2305 | uint64_t u64Elapsed;
|
|---|
| 2306 | #define MAX_ELAPSED 30000U /* ns */
|
|---|
| 2307 | if (offSlack > MAX_ELAPSED)
|
|---|
| 2308 | u64Elapsed = 0;
|
|---|
| 2309 | else
|
|---|
| 2310 | {
|
|---|
| 2311 | u64Elapsed = u64VirtualNow2 - u64VirtualNow;
|
|---|
| 2312 | if (u64Elapsed > MAX_ELAPSED)
|
|---|
| 2313 | u64Elapsed = MAX_ELAPSED;
|
|---|
| 2314 | u64Elapsed = u64Elapsed > offSlack ? u64Elapsed - offSlack : 0;
|
|---|
| 2315 | }
|
|---|
| 2316 | #undef MAX_ELAPSED
|
|---|
| 2317 |
|
|---|
| 2318 | /* Calc the current offset. */
|
|---|
| 2319 | uint64_t offNew = u64VirtualNow2 - pVM->tm.s.u64VirtualSync - u64Elapsed;
|
|---|
| 2320 | Assert(!(offNew & RT_BIT_64(63)));
|
|---|
| 2321 | uint64_t offLag = offNew - pVM->tm.s.offVirtualSyncGivenUp;
|
|---|
| 2322 | Assert(!(offLag & RT_BIT_64(63)));
|
|---|
| 2323 |
|
|---|
| 2324 | /*
|
|---|
| 2325 | * Deal with starting, adjusting and stopping catchup.
|
|---|
| 2326 | */
|
|---|
| 2327 | if (pVM->tm.s.fVirtualSyncCatchUp)
|
|---|
| 2328 | {
|
|---|
| 2329 | if (offLag <= pVM->tm.s.u64VirtualSyncCatchUpStopThreshold)
|
|---|
| 2330 | {
|
|---|
| 2331 | /* stop */
|
|---|
| 2332 | STAM_PROFILE_ADV_STOP(&pVM->tm.s.StatVirtualSyncCatchup, c);
|
|---|
| 2333 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, false);
|
|---|
| 2334 | Log4(("TM: %'RU64/-%'8RU64: caught up [pt]\n", u64VirtualNow2 - offNew, offLag));
|
|---|
| 2335 | }
|
|---|
| 2336 | else if (offLag <= pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold)
|
|---|
| 2337 | {
|
|---|
| 2338 | /* adjust */
|
|---|
| 2339 | unsigned i = 0;
|
|---|
| 2340 | while ( i + 1 < RT_ELEMENTS(pVM->tm.s.aVirtualSyncCatchUpPeriods)
|
|---|
| 2341 | && offLag >= pVM->tm.s.aVirtualSyncCatchUpPeriods[i + 1].u64Start)
|
|---|
| 2342 | i++;
|
|---|
| 2343 | if (pVM->tm.s.u32VirtualSyncCatchUpPercentage < pVM->tm.s.aVirtualSyncCatchUpPeriods[i].u32Percentage)
|
|---|
| 2344 | {
|
|---|
| 2345 | STAM_COUNTER_INC(&pVM->tm.s.aStatVirtualSyncCatchupAdjust[i]);
|
|---|
| 2346 | ASMAtomicWriteU32(&pVM->tm.s.u32VirtualSyncCatchUpPercentage, pVM->tm.s.aVirtualSyncCatchUpPeriods[i].u32Percentage);
|
|---|
| 2347 | Log4(("TM: %'RU64/%'8RU64: adj %u%%\n", u64VirtualNow2 - offNew, offLag, pVM->tm.s.u32VirtualSyncCatchUpPercentage));
|
|---|
| 2348 | }
|
|---|
| 2349 | pVM->tm.s.u64VirtualSyncCatchUpPrev = u64VirtualNow2;
|
|---|
| 2350 | }
|
|---|
| 2351 | else
|
|---|
| 2352 | {
|
|---|
| 2353 | /* give up */
|
|---|
| 2354 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncGiveUp);
|
|---|
| 2355 | STAM_PROFILE_ADV_STOP(&pVM->tm.s.StatVirtualSyncCatchup, c);
|
|---|
| 2356 | ASMAtomicWriteU64((uint64_t volatile *)&pVM->tm.s.offVirtualSyncGivenUp, offNew);
|
|---|
| 2357 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, false);
|
|---|
| 2358 | Log4(("TM: %'RU64/%'8RU64: give up %u%%\n", u64VirtualNow2 - offNew, offLag, pVM->tm.s.u32VirtualSyncCatchUpPercentage));
|
|---|
| 2359 | LogRel(("TM: Giving up catch-up attempt at a %'RU64 ns lag; new total: %'RU64 ns\n", offLag, offNew));
|
|---|
| 2360 | }
|
|---|
| 2361 | }
|
|---|
| 2362 | else if (offLag >= pVM->tm.s.aVirtualSyncCatchUpPeriods[0].u64Start)
|
|---|
| 2363 | {
|
|---|
| 2364 | if (offLag <= pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold)
|
|---|
| 2365 | {
|
|---|
| 2366 | /* start */
|
|---|
| 2367 | STAM_PROFILE_ADV_START(&pVM->tm.s.StatVirtualSyncCatchup, c);
|
|---|
| 2368 | unsigned i = 0;
|
|---|
| 2369 | while ( i + 1 < RT_ELEMENTS(pVM->tm.s.aVirtualSyncCatchUpPeriods)
|
|---|
| 2370 | && offLag >= pVM->tm.s.aVirtualSyncCatchUpPeriods[i + 1].u64Start)
|
|---|
| 2371 | i++;
|
|---|
| 2372 | STAM_COUNTER_INC(&pVM->tm.s.aStatVirtualSyncCatchupInitial[i]);
|
|---|
| 2373 | ASMAtomicWriteU32(&pVM->tm.s.u32VirtualSyncCatchUpPercentage, pVM->tm.s.aVirtualSyncCatchUpPeriods[i].u32Percentage);
|
|---|
| 2374 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, true);
|
|---|
| 2375 | Log4(("TM: %'RU64/%'8RU64: catch-up %u%%\n", u64VirtualNow2 - offNew, offLag, pVM->tm.s.u32VirtualSyncCatchUpPercentage));
|
|---|
| 2376 | }
|
|---|
| 2377 | else
|
|---|
| 2378 | {
|
|---|
| 2379 | /* don't bother */
|
|---|
| 2380 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncGiveUpBeforeStarting);
|
|---|
| 2381 | ASMAtomicWriteU64((uint64_t volatile *)&pVM->tm.s.offVirtualSyncGivenUp, offNew);
|
|---|
| 2382 | Log4(("TM: %'RU64/%'8RU64: give up\n", u64VirtualNow2 - offNew, offLag));
|
|---|
| 2383 | LogRel(("TM: Not bothering to attempt catching up a %'RU64 ns lag; new total: %'RU64\n", offLag, offNew));
|
|---|
| 2384 | }
|
|---|
| 2385 | }
|
|---|
| 2386 |
|
|---|
| 2387 | /*
|
|---|
| 2388 | * Update the offset and restart the clock.
|
|---|
| 2389 | */
|
|---|
| 2390 | Assert(!(offNew & RT_BIT_64(63)));
|
|---|
| 2391 | ASMAtomicWriteU64(&pVM->tm.s.offVirtualSync, offNew);
|
|---|
| 2392 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncTicking, true);
|
|---|
| 2393 | }
|
|---|
| 2394 | }
|
|---|
| 2395 |
|
|---|
| 2396 |
|
|---|
| 2397 | /**
|
|---|
| 2398 | * Deals with stopped Virtual Sync clock.
|
|---|
| 2399 | *
|
|---|
| 2400 | * This is called by the forced action flag handling code in EM when it
|
|---|
| 2401 | * encounters the VM_FF_TM_VIRTUAL_SYNC flag. It is called by all VCPUs and they
|
|---|
| 2402 | * will block on the VirtualSyncLock until the pending timers has been executed
|
|---|
| 2403 | * and the clock restarted.
|
|---|
| 2404 | *
|
|---|
| 2405 | * @param pVM The VM to run the timers for.
|
|---|
| 2406 | * @param pVCpu The virtual CPU we're running at.
|
|---|
| 2407 | *
|
|---|
| 2408 | * @thread EMTs
|
|---|
| 2409 | */
|
|---|
| 2410 | VMMR3_INT_DECL(void) TMR3VirtualSyncFF(PVM pVM, PVMCPU pVCpu)
|
|---|
| 2411 | {
|
|---|
| 2412 | Log2(("TMR3VirtualSyncFF:\n"));
|
|---|
| 2413 |
|
|---|
| 2414 | /*
|
|---|
| 2415 | * The EMT doing the timers is diverted to them.
|
|---|
| 2416 | */
|
|---|
| 2417 | if (pVCpu->idCpu == pVM->tm.s.idTimerCpu)
|
|---|
| 2418 | TMR3TimerQueuesDo(pVM);
|
|---|
| 2419 | /*
|
|---|
| 2420 | * The other EMTs will block on the virtual sync lock and the first owner
|
|---|
| 2421 | * will run the queue and thus restarting the clock.
|
|---|
| 2422 | *
|
|---|
| 2423 | * Note! This is very suboptimal code wrt to resuming execution when there
|
|---|
| 2424 | * are more than two Virtual CPUs, since they will all have to enter
|
|---|
| 2425 | * the critical section one by one. But it's a very simple solution
|
|---|
| 2426 | * which will have to do the job for now.
|
|---|
| 2427 | */
|
|---|
| 2428 | else
|
|---|
| 2429 | {
|
|---|
| 2430 | STAM_PROFILE_START(&pVM->tm.s.StatVirtualSyncFF, a);
|
|---|
| 2431 | PDMCritSectEnter(&pVM->tm.s.VirtualSyncLock, VERR_IGNORED);
|
|---|
| 2432 | if (pVM->tm.s.fVirtualSyncTicking)
|
|---|
| 2433 | {
|
|---|
| 2434 | STAM_PROFILE_STOP(&pVM->tm.s.StatVirtualSyncFF, a); /* before the unlock! */
|
|---|
| 2435 | PDMCritSectLeave(&pVM->tm.s.VirtualSyncLock);
|
|---|
| 2436 | Log2(("TMR3VirtualSyncFF: ticking\n"));
|
|---|
| 2437 | }
|
|---|
| 2438 | else
|
|---|
| 2439 | {
|
|---|
| 2440 | PDMCritSectLeave(&pVM->tm.s.VirtualSyncLock);
|
|---|
| 2441 |
|
|---|
| 2442 | /* try run it. */
|
|---|
| 2443 | TM_LOCK_TIMERS(pVM);
|
|---|
| 2444 | PDMCritSectEnter(&pVM->tm.s.VirtualSyncLock, VERR_IGNORED);
|
|---|
| 2445 | if (pVM->tm.s.fVirtualSyncTicking)
|
|---|
| 2446 | Log2(("TMR3VirtualSyncFF: ticking (2)\n"));
|
|---|
| 2447 | else
|
|---|
| 2448 | {
|
|---|
| 2449 | ASMAtomicWriteBool(&pVM->tm.s.fRunningVirtualSyncQueue, true);
|
|---|
| 2450 | Log2(("TMR3VirtualSyncFF: running queue\n"));
|
|---|
| 2451 |
|
|---|
| 2452 | Assert(!pVM->tm.s.paTimerQueuesR3[TMCLOCK_VIRTUAL_SYNC].offSchedule);
|
|---|
| 2453 | tmR3TimerQueueRunVirtualSync(pVM);
|
|---|
| 2454 | if (pVM->tm.s.fVirtualSyncTicking) /** @todo move into tmR3TimerQueueRunVirtualSync - FIXME */
|
|---|
| 2455 | VM_FF_CLEAR(pVM, VM_FF_TM_VIRTUAL_SYNC);
|
|---|
| 2456 |
|
|---|
| 2457 | ASMAtomicWriteBool(&pVM->tm.s.fRunningVirtualSyncQueue, false);
|
|---|
| 2458 | }
|
|---|
| 2459 | STAM_PROFILE_STOP(&pVM->tm.s.StatVirtualSyncFF, a); /* before the unlock! */
|
|---|
| 2460 | PDMCritSectLeave(&pVM->tm.s.VirtualSyncLock);
|
|---|
| 2461 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 2462 | }
|
|---|
| 2463 | }
|
|---|
| 2464 | }
|
|---|
| 2465 |
|
|---|
| 2466 |
|
|---|
| 2467 | /** @name Saved state values
|
|---|
| 2468 | * @{ */
|
|---|
| 2469 | #define TMTIMERSTATE_SAVED_PENDING_STOP 4
|
|---|
| 2470 | #define TMTIMERSTATE_SAVED_PENDING_SCHEDULE 7
|
|---|
| 2471 | /** @} */
|
|---|
| 2472 |
|
|---|
| 2473 |
|
|---|
| 2474 | /**
|
|---|
| 2475 | * Saves the state of a timer to a saved state.
|
|---|
| 2476 | *
|
|---|
| 2477 | * @returns VBox status.
|
|---|
| 2478 | * @param pTimer Timer to save.
|
|---|
| 2479 | * @param pSSM Save State Manager handle.
|
|---|
| 2480 | */
|
|---|
| 2481 | VMMR3DECL(int) TMR3TimerSave(PTMTIMERR3 pTimer, PSSMHANDLE pSSM)
|
|---|
| 2482 | {
|
|---|
| 2483 | LogFlow(("TMR3TimerSave: %p:{enmState=%s, .pszDesc={%s}} pSSM=%p\n", pTimer, tmTimerState(pTimer->enmState), pTimer->pszDesc, pSSM));
|
|---|
| 2484 | switch (pTimer->enmState)
|
|---|
| 2485 | {
|
|---|
| 2486 | case TMTIMERSTATE_STOPPED:
|
|---|
| 2487 | case TMTIMERSTATE_PENDING_STOP:
|
|---|
| 2488 | case TMTIMERSTATE_PENDING_STOP_SCHEDULE:
|
|---|
| 2489 | return SSMR3PutU8(pSSM, TMTIMERSTATE_SAVED_PENDING_STOP);
|
|---|
| 2490 |
|
|---|
| 2491 | case TMTIMERSTATE_PENDING_SCHEDULE_SET_EXPIRE:
|
|---|
| 2492 | case TMTIMERSTATE_PENDING_RESCHEDULE_SET_EXPIRE:
|
|---|
| 2493 | AssertMsgFailed(("u64Expire is being updated! (%s)\n", pTimer->pszDesc));
|
|---|
| 2494 | if (!RTThreadYield())
|
|---|
| 2495 | RTThreadSleep(1);
|
|---|
| 2496 | /* fall thru */
|
|---|
| 2497 | case TMTIMERSTATE_ACTIVE:
|
|---|
| 2498 | case TMTIMERSTATE_PENDING_SCHEDULE:
|
|---|
| 2499 | case TMTIMERSTATE_PENDING_RESCHEDULE:
|
|---|
| 2500 | SSMR3PutU8(pSSM, TMTIMERSTATE_SAVED_PENDING_SCHEDULE);
|
|---|
| 2501 | return SSMR3PutU64(pSSM, pTimer->u64Expire);
|
|---|
| 2502 |
|
|---|
| 2503 | case TMTIMERSTATE_EXPIRED_GET_UNLINK:
|
|---|
| 2504 | case TMTIMERSTATE_EXPIRED_DELIVER:
|
|---|
| 2505 | case TMTIMERSTATE_DESTROY:
|
|---|
| 2506 | case TMTIMERSTATE_FREE:
|
|---|
| 2507 | AssertMsgFailed(("Invalid timer state %d %s (%s)\n", pTimer->enmState, tmTimerState(pTimer->enmState), pTimer->pszDesc));
|
|---|
| 2508 | return SSMR3HandleSetStatus(pSSM, VERR_TM_INVALID_STATE);
|
|---|
| 2509 | }
|
|---|
| 2510 |
|
|---|
| 2511 | AssertMsgFailed(("Unknown timer state %d (%s)\n", pTimer->enmState, pTimer->pszDesc));
|
|---|
| 2512 | return SSMR3HandleSetStatus(pSSM, VERR_TM_UNKNOWN_STATE);
|
|---|
| 2513 | }
|
|---|
| 2514 |
|
|---|
| 2515 |
|
|---|
| 2516 | /**
|
|---|
| 2517 | * Loads the state of a timer from a saved state.
|
|---|
| 2518 | *
|
|---|
| 2519 | * @returns VBox status.
|
|---|
| 2520 | * @param pTimer Timer to restore.
|
|---|
| 2521 | * @param pSSM Save State Manager handle.
|
|---|
| 2522 | */
|
|---|
| 2523 | VMMR3DECL(int) TMR3TimerLoad(PTMTIMERR3 pTimer, PSSMHANDLE pSSM)
|
|---|
| 2524 | {
|
|---|
| 2525 | Assert(pTimer); Assert(pSSM); VM_ASSERT_EMT(pTimer->pVMR3);
|
|---|
| 2526 | LogFlow(("TMR3TimerLoad: %p:{enmState=%s, .pszDesc={%s}} pSSM=%p\n", pTimer, tmTimerState(pTimer->enmState), pTimer->pszDesc, pSSM));
|
|---|
| 2527 |
|
|---|
| 2528 | /*
|
|---|
| 2529 | * Load the state and validate it.
|
|---|
| 2530 | */
|
|---|
| 2531 | uint8_t u8State;
|
|---|
| 2532 | int rc = SSMR3GetU8(pSSM, &u8State);
|
|---|
| 2533 | if (RT_FAILURE(rc))
|
|---|
| 2534 | return rc;
|
|---|
| 2535 | #if 1 /* Workaround for accidental state shift in r47786 (2009-05-26 19:12:12). */ /** @todo remove this in a few weeks! */
|
|---|
| 2536 | if ( u8State == TMTIMERSTATE_SAVED_PENDING_STOP + 1
|
|---|
| 2537 | || u8State == TMTIMERSTATE_SAVED_PENDING_SCHEDULE + 1)
|
|---|
| 2538 | u8State--;
|
|---|
| 2539 | #endif
|
|---|
| 2540 | if ( u8State != TMTIMERSTATE_SAVED_PENDING_STOP
|
|---|
| 2541 | && u8State != TMTIMERSTATE_SAVED_PENDING_SCHEDULE)
|
|---|
| 2542 | {
|
|---|
| 2543 | AssertLogRelMsgFailed(("u8State=%d\n", u8State));
|
|---|
| 2544 | return SSMR3HandleSetStatus(pSSM, VERR_TM_LOAD_STATE);
|
|---|
| 2545 | }
|
|---|
| 2546 |
|
|---|
| 2547 | /* Enter the critical sections to make TMTimerSet/Stop happy. */
|
|---|
| 2548 | if (pTimer->enmClock == TMCLOCK_VIRTUAL_SYNC)
|
|---|
| 2549 | PDMCritSectEnter(&pTimer->pVMR3->tm.s.VirtualSyncLock, VERR_IGNORED);
|
|---|
| 2550 | PPDMCRITSECT pCritSect = pTimer->pCritSect;
|
|---|
| 2551 | if (pCritSect)
|
|---|
| 2552 | PDMCritSectEnter(pCritSect, VERR_IGNORED);
|
|---|
| 2553 |
|
|---|
| 2554 | if (u8State == TMTIMERSTATE_SAVED_PENDING_SCHEDULE)
|
|---|
| 2555 | {
|
|---|
| 2556 | /*
|
|---|
| 2557 | * Load the expire time.
|
|---|
| 2558 | */
|
|---|
| 2559 | uint64_t u64Expire;
|
|---|
| 2560 | rc = SSMR3GetU64(pSSM, &u64Expire);
|
|---|
| 2561 | if (RT_FAILURE(rc))
|
|---|
| 2562 | return rc;
|
|---|
| 2563 |
|
|---|
| 2564 | /*
|
|---|
| 2565 | * Set it.
|
|---|
| 2566 | */
|
|---|
| 2567 | Log(("u8State=%d u64Expire=%llu\n", u8State, u64Expire));
|
|---|
| 2568 | rc = TMTimerSet(pTimer, u64Expire);
|
|---|
| 2569 | }
|
|---|
| 2570 | else
|
|---|
| 2571 | {
|
|---|
| 2572 | /*
|
|---|
| 2573 | * Stop it.
|
|---|
| 2574 | */
|
|---|
| 2575 | Log(("u8State=%d\n", u8State));
|
|---|
| 2576 | rc = TMTimerStop(pTimer);
|
|---|
| 2577 | }
|
|---|
| 2578 |
|
|---|
| 2579 | if (pCritSect)
|
|---|
| 2580 | PDMCritSectLeave(pCritSect);
|
|---|
| 2581 | if (pTimer->enmClock == TMCLOCK_VIRTUAL_SYNC)
|
|---|
| 2582 | PDMCritSectLeave(&pTimer->pVMR3->tm.s.VirtualSyncLock);
|
|---|
| 2583 |
|
|---|
| 2584 | /*
|
|---|
| 2585 | * On failure set SSM status.
|
|---|
| 2586 | */
|
|---|
| 2587 | if (RT_FAILURE(rc))
|
|---|
| 2588 | rc = SSMR3HandleSetStatus(pSSM, rc);
|
|---|
| 2589 | return rc;
|
|---|
| 2590 | }
|
|---|
| 2591 |
|
|---|
| 2592 |
|
|---|
| 2593 | /**
|
|---|
| 2594 | * Associates a critical section with a timer.
|
|---|
| 2595 | *
|
|---|
| 2596 | * The critical section will be entered prior to doing the timer call back, thus
|
|---|
| 2597 | * avoiding potential races between the timer thread and other threads trying to
|
|---|
| 2598 | * stop or adjust the timer expiration while it's being delivered. The timer
|
|---|
| 2599 | * thread will leave the critical section when the timer callback returns.
|
|---|
| 2600 | *
|
|---|
| 2601 | * In strict builds, ownership of the critical section will be asserted by
|
|---|
| 2602 | * TMTimerSet, TMTimerStop, TMTimerGetExpire and TMTimerDestroy (when called at
|
|---|
| 2603 | * runtime).
|
|---|
| 2604 | *
|
|---|
| 2605 | * @retval VINF_SUCCESS on success.
|
|---|
| 2606 | * @retval VERR_INVALID_HANDLE if the timer handle is NULL or invalid
|
|---|
| 2607 | * (asserted).
|
|---|
| 2608 | * @retval VERR_INVALID_PARAMETER if pCritSect is NULL or has an invalid magic
|
|---|
| 2609 | * (asserted).
|
|---|
| 2610 | * @retval VERR_ALREADY_EXISTS if a critical section was already associated
|
|---|
| 2611 | * with the timer (asserted).
|
|---|
| 2612 | * @retval VERR_INVALID_STATE if the timer isn't stopped.
|
|---|
| 2613 | *
|
|---|
| 2614 | * @param pTimer The timer handle.
|
|---|
| 2615 | * @param pCritSect The critical section. The caller must make sure this
|
|---|
| 2616 | * is around for the life time of the timer.
|
|---|
| 2617 | *
|
|---|
| 2618 | * @thread Any, but the caller is responsible for making sure the timer is not
|
|---|
| 2619 | * active.
|
|---|
| 2620 | */
|
|---|
| 2621 | VMMR3DECL(int) TMR3TimerSetCritSect(PTMTIMERR3 pTimer, PPDMCRITSECT pCritSect)
|
|---|
| 2622 | {
|
|---|
| 2623 | AssertPtrReturn(pTimer, VERR_INVALID_HANDLE);
|
|---|
| 2624 | AssertPtrReturn(pCritSect, VERR_INVALID_PARAMETER);
|
|---|
| 2625 | const char *pszName = PDMR3CritSectName(pCritSect); /* exploited for validation */
|
|---|
| 2626 | AssertReturn(pszName, VERR_INVALID_PARAMETER);
|
|---|
| 2627 | AssertReturn(!pTimer->pCritSect, VERR_ALREADY_EXISTS);
|
|---|
| 2628 | AssertReturn(pTimer->enmState == TMTIMERSTATE_STOPPED, VERR_INVALID_STATE);
|
|---|
| 2629 | LogFlow(("pTimer=%p (%s) pCritSect=%p (%s)\n", pTimer, pTimer->pszDesc, pCritSect, pszName));
|
|---|
| 2630 |
|
|---|
| 2631 | pTimer->pCritSect = pCritSect;
|
|---|
| 2632 | return VINF_SUCCESS;
|
|---|
| 2633 | }
|
|---|
| 2634 |
|
|---|
| 2635 |
|
|---|
| 2636 | /**
|
|---|
| 2637 | * Get the real world UTC time adjusted for VM lag.
|
|---|
| 2638 | *
|
|---|
| 2639 | * @returns pTime.
|
|---|
| 2640 | * @param pVM The VM instance.
|
|---|
| 2641 | * @param pTime Where to store the time.
|
|---|
| 2642 | */
|
|---|
| 2643 | VMMR3_INT_DECL(PRTTIMESPEC) TMR3UtcNow(PVM pVM, PRTTIMESPEC pTime)
|
|---|
| 2644 | {
|
|---|
| 2645 | /* Get a stable set of VirtualSync parameters before querying UTC. */
|
|---|
| 2646 | uint64_t offVirtualSync;
|
|---|
| 2647 | uint64_t offVirtualSyncGivenUp;
|
|---|
| 2648 | do
|
|---|
| 2649 | {
|
|---|
| 2650 | offVirtualSync = ASMAtomicReadU64(&pVM->tm.s.offVirtualSync);
|
|---|
| 2651 | offVirtualSyncGivenUp = ASMAtomicReadU64((uint64_t volatile *)&pVM->tm.s.offVirtualSyncGivenUp);
|
|---|
| 2652 | } while (ASMAtomicReadU64(&pVM->tm.s.offVirtualSync) != offVirtualSync);
|
|---|
| 2653 |
|
|---|
| 2654 | Assert(offVirtualSync >= offVirtualSyncGivenUp);
|
|---|
| 2655 | uint64_t const offLag = offVirtualSync - offVirtualSyncGivenUp;
|
|---|
| 2656 |
|
|---|
| 2657 | RTTimeNow(pTime);
|
|---|
| 2658 | RTTimeSpecSubNano(pTime, offLag);
|
|---|
| 2659 | RTTimeSpecAddNano(pTime, pVM->tm.s.offUTC);
|
|---|
| 2660 | return pTime;
|
|---|
| 2661 | }
|
|---|
| 2662 |
|
|---|
| 2663 |
|
|---|
| 2664 | /**
|
|---|
| 2665 | * Pauses all clocks except TMCLOCK_REAL.
|
|---|
| 2666 | *
|
|---|
| 2667 | * @returns VBox status code, all errors are asserted.
|
|---|
| 2668 | * @param pVM Pointer to the VM.
|
|---|
| 2669 | * @param pVCpu Pointer to the VMCPU.
|
|---|
| 2670 | * @thread EMT corresponding to Pointer to the VMCPU.
|
|---|
| 2671 | */
|
|---|
| 2672 | VMMR3DECL(int) TMR3NotifySuspend(PVM pVM, PVMCPU pVCpu)
|
|---|
| 2673 | {
|
|---|
| 2674 | VMCPU_ASSERT_EMT(pVCpu);
|
|---|
| 2675 |
|
|---|
| 2676 | /*
|
|---|
| 2677 | * The shared virtual clock (includes virtual sync which is tied to it).
|
|---|
| 2678 | */
|
|---|
| 2679 | TM_LOCK_TIMERS(pVM); /* Paranoia: Exploiting the timer lock here. */
|
|---|
| 2680 | int rc = tmVirtualPauseLocked(pVM);
|
|---|
| 2681 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 2682 | if (RT_FAILURE(rc))
|
|---|
| 2683 | return rc;
|
|---|
| 2684 |
|
|---|
| 2685 | /*
|
|---|
| 2686 | * Pause the TSC last since it is normally linked to the virtual
|
|---|
| 2687 | * sync clock, so the above code may actually stop both clocks.
|
|---|
| 2688 | */
|
|---|
| 2689 | if (!pVM->tm.s.fTSCTiedToExecution)
|
|---|
| 2690 | {
|
|---|
| 2691 | TM_LOCK_TIMERS(pVM); /* Exploit the timer lock for synchronization. */
|
|---|
| 2692 | rc = tmCpuTickPauseLocked(pVM, pVCpu);
|
|---|
| 2693 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 2694 | if (RT_FAILURE(rc))
|
|---|
| 2695 | return rc;
|
|---|
| 2696 | }
|
|---|
| 2697 |
|
|---|
| 2698 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 2699 | /*
|
|---|
| 2700 | * Update cNsTotal.
|
|---|
| 2701 | */
|
|---|
| 2702 | uint32_t uGen = ASMAtomicIncU32(&pVCpu->tm.s.uTimesGen); Assert(uGen & 1);
|
|---|
| 2703 | pVCpu->tm.s.cNsTotal = RTTimeNanoTS() - pVCpu->tm.s.u64NsTsStartTotal;
|
|---|
| 2704 | pVCpu->tm.s.cNsOther = pVCpu->tm.s.cNsTotal - pVCpu->tm.s.cNsExecuting - pVCpu->tm.s.cNsHalted;
|
|---|
| 2705 | ASMAtomicWriteU32(&pVCpu->tm.s.uTimesGen, (uGen | 1) + 1);
|
|---|
| 2706 | #endif
|
|---|
| 2707 |
|
|---|
| 2708 | return VINF_SUCCESS;
|
|---|
| 2709 | }
|
|---|
| 2710 |
|
|---|
| 2711 |
|
|---|
| 2712 | /**
|
|---|
| 2713 | * Resumes all clocks except TMCLOCK_REAL.
|
|---|
| 2714 | *
|
|---|
| 2715 | * @returns VBox status code, all errors are asserted.
|
|---|
| 2716 | * @param pVM Pointer to the VM.
|
|---|
| 2717 | * @param pVCpu Pointer to the VMCPU.
|
|---|
| 2718 | * @thread EMT corresponding to Pointer to the VMCPU.
|
|---|
| 2719 | */
|
|---|
| 2720 | VMMR3DECL(int) TMR3NotifyResume(PVM pVM, PVMCPU pVCpu)
|
|---|
| 2721 | {
|
|---|
| 2722 | VMCPU_ASSERT_EMT(pVCpu);
|
|---|
| 2723 | int rc;
|
|---|
| 2724 |
|
|---|
| 2725 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 2726 | /*
|
|---|
| 2727 | * Set u64NsTsStartTotal. There is no need to back this out if either of
|
|---|
| 2728 | * the two calls below fail.
|
|---|
| 2729 | */
|
|---|
| 2730 | pVCpu->tm.s.u64NsTsStartTotal = RTTimeNanoTS() - pVCpu->tm.s.cNsTotal;
|
|---|
| 2731 | #endif
|
|---|
| 2732 |
|
|---|
| 2733 | /*
|
|---|
| 2734 | * Resume the TSC first since it is normally linked to the virtual sync
|
|---|
| 2735 | * clock, so it may actually not be resumed until we've executed the code
|
|---|
| 2736 | * below.
|
|---|
| 2737 | */
|
|---|
| 2738 | if (!pVM->tm.s.fTSCTiedToExecution)
|
|---|
| 2739 | {
|
|---|
| 2740 | TM_LOCK_TIMERS(pVM); /* Exploit the timer lock for synchronization. */
|
|---|
| 2741 | rc = tmCpuTickResumeLocked(pVM, pVCpu);
|
|---|
| 2742 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 2743 | if (RT_FAILURE(rc))
|
|---|
| 2744 | return rc;
|
|---|
| 2745 | }
|
|---|
| 2746 |
|
|---|
| 2747 | /*
|
|---|
| 2748 | * The shared virtual clock (includes virtual sync which is tied to it).
|
|---|
| 2749 | */
|
|---|
| 2750 | TM_LOCK_TIMERS(pVM); /* Paranoia: Exploiting the timer lock here. */
|
|---|
| 2751 | rc = tmVirtualResumeLocked(pVM);
|
|---|
| 2752 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 2753 |
|
|---|
| 2754 | return rc;
|
|---|
| 2755 | }
|
|---|
| 2756 |
|
|---|
| 2757 |
|
|---|
| 2758 | /**
|
|---|
| 2759 | * Sets the warp drive percent of the virtual time.
|
|---|
| 2760 | *
|
|---|
| 2761 | * @returns VBox status code.
|
|---|
| 2762 | * @param pVM Pointer to the VM.
|
|---|
| 2763 | * @param u32Percent The new percentage. 100 means normal operation.
|
|---|
| 2764 | */
|
|---|
| 2765 | VMMDECL(int) TMR3SetWarpDrive(PUVM pUVM, uint32_t u32Percent)
|
|---|
| 2766 | {
|
|---|
| 2767 | return VMR3ReqPriorityCallWaitU(pUVM, VMCPUID_ANY, (PFNRT)tmR3SetWarpDrive, 2, pUVM, u32Percent);
|
|---|
| 2768 | }
|
|---|
| 2769 |
|
|---|
| 2770 |
|
|---|
| 2771 | /**
|
|---|
| 2772 | * EMT worker for TMR3SetWarpDrive.
|
|---|
| 2773 | *
|
|---|
| 2774 | * @returns VBox status code.
|
|---|
| 2775 | * @param pUVM The user mode VM handle.
|
|---|
| 2776 | * @param u32Percent See TMR3SetWarpDrive().
|
|---|
| 2777 | * @internal
|
|---|
| 2778 | */
|
|---|
| 2779 | static DECLCALLBACK(int) tmR3SetWarpDrive(PUVM pUVM, uint32_t u32Percent)
|
|---|
| 2780 | {
|
|---|
| 2781 | PVM pVM = pUVM->pVM;
|
|---|
| 2782 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
|---|
| 2783 | PVMCPU pVCpu = VMMGetCpu(pVM);
|
|---|
| 2784 |
|
|---|
| 2785 | /*
|
|---|
| 2786 | * Validate it.
|
|---|
| 2787 | */
|
|---|
| 2788 | AssertMsgReturn(u32Percent >= 2 && u32Percent <= 20000,
|
|---|
| 2789 | ("%RX32 is not between 2 and 20000 (inclusive).\n", u32Percent),
|
|---|
| 2790 | VERR_INVALID_PARAMETER);
|
|---|
| 2791 |
|
|---|
| 2792 | /** @todo This isn't a feature specific to virtual time, move the variables to
|
|---|
| 2793 | * TM level and make it affect TMR3UTCNow as well! */
|
|---|
| 2794 |
|
|---|
| 2795 | /*
|
|---|
| 2796 | * If the time is running we'll have to pause it before we can change
|
|---|
| 2797 | * the warp drive settings.
|
|---|
| 2798 | */
|
|---|
| 2799 | TM_LOCK_TIMERS(pVM); /* Paranoia: Exploiting the timer lock here. */
|
|---|
| 2800 | bool fPaused = !!pVM->tm.s.cVirtualTicking;
|
|---|
| 2801 | if (fPaused) /** @todo this isn't really working, but wtf. */
|
|---|
| 2802 | TMR3NotifySuspend(pVM, pVCpu);
|
|---|
| 2803 |
|
|---|
| 2804 | pVM->tm.s.u32VirtualWarpDrivePercentage = u32Percent;
|
|---|
| 2805 | pVM->tm.s.fVirtualWarpDrive = u32Percent != 100;
|
|---|
| 2806 | LogRel(("TM: u32VirtualWarpDrivePercentage=%RI32 fVirtualWarpDrive=%RTbool\n",
|
|---|
| 2807 | pVM->tm.s.u32VirtualWarpDrivePercentage, pVM->tm.s.fVirtualWarpDrive));
|
|---|
| 2808 |
|
|---|
| 2809 | if (fPaused)
|
|---|
| 2810 | TMR3NotifyResume(pVM, pVCpu);
|
|---|
| 2811 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 2812 | return VINF_SUCCESS;
|
|---|
| 2813 | }
|
|---|
| 2814 |
|
|---|
| 2815 |
|
|---|
| 2816 | /**
|
|---|
| 2817 | * Gets the current warp drive percent.
|
|---|
| 2818 | *
|
|---|
| 2819 | * @returns The warp drive percent.
|
|---|
| 2820 | * @param pVM Pointer to the VM.
|
|---|
| 2821 | */
|
|---|
| 2822 | VMMR3DECL(uint32_t) TMR3GetWarpDrive(PUVM pUVM)
|
|---|
| 2823 | {
|
|---|
| 2824 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT32_MAX);
|
|---|
| 2825 | PVM pVM = pUVM->pVM;
|
|---|
| 2826 | VM_ASSERT_VALID_EXT_RETURN(pVM, UINT32_MAX);
|
|---|
| 2827 | return pVM->tm.s.u32VirtualWarpDrivePercentage;
|
|---|
| 2828 | }
|
|---|
| 2829 |
|
|---|
| 2830 |
|
|---|
| 2831 | /**
|
|---|
| 2832 | * Gets the performance information for one virtual CPU as seen by the VMM.
|
|---|
| 2833 | *
|
|---|
| 2834 | * The returned times covers the period where the VM is running and will be
|
|---|
| 2835 | * reset when restoring a previous VM state (at least for the time being).
|
|---|
| 2836 | *
|
|---|
| 2837 | * @retval VINF_SUCCESS on success.
|
|---|
| 2838 | * @retval VERR_NOT_IMPLEMENTED if not compiled in.
|
|---|
| 2839 | * @retval VERR_INVALID_STATE if the VM handle is bad.
|
|---|
| 2840 | * @retval VERR_INVALID_PARAMETER if idCpu is out of range.
|
|---|
| 2841 | *
|
|---|
| 2842 | * @param pVM Pointer to the VM.
|
|---|
| 2843 | * @param idCpu The ID of the virtual CPU which times to get.
|
|---|
| 2844 | * @param pcNsTotal Where to store the total run time (nano seconds) of
|
|---|
| 2845 | * the CPU, i.e. the sum of the three other returns.
|
|---|
| 2846 | * Optional.
|
|---|
| 2847 | * @param pcNsExecuting Where to store the time (nano seconds) spent
|
|---|
| 2848 | * executing guest code. Optional.
|
|---|
| 2849 | * @param pcNsHalted Where to store the time (nano seconds) spent
|
|---|
| 2850 | * halted. Optional
|
|---|
| 2851 | * @param pcNsOther Where to store the time (nano seconds) spent
|
|---|
| 2852 | * preempted by the host scheduler, on virtualization
|
|---|
| 2853 | * overhead and on other tasks.
|
|---|
| 2854 | */
|
|---|
| 2855 | VMMR3DECL(int) TMR3GetCpuLoadTimes(PVM pVM, VMCPUID idCpu, uint64_t *pcNsTotal, uint64_t *pcNsExecuting,
|
|---|
| 2856 | uint64_t *pcNsHalted, uint64_t *pcNsOther)
|
|---|
| 2857 | {
|
|---|
| 2858 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_STATE);
|
|---|
| 2859 | AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_PARAMETER);
|
|---|
| 2860 |
|
|---|
| 2861 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 2862 | /*
|
|---|
| 2863 | * Get a stable result set.
|
|---|
| 2864 | * This should be way quicker than an EMT request.
|
|---|
| 2865 | */
|
|---|
| 2866 | PVMCPU pVCpu = &pVM->aCpus[idCpu];
|
|---|
| 2867 | uint32_t uTimesGen = ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen);
|
|---|
| 2868 | uint64_t cNsTotal = pVCpu->tm.s.cNsTotal;
|
|---|
| 2869 | uint64_t cNsExecuting = pVCpu->tm.s.cNsExecuting;
|
|---|
| 2870 | uint64_t cNsHalted = pVCpu->tm.s.cNsHalted;
|
|---|
| 2871 | uint64_t cNsOther = pVCpu->tm.s.cNsOther;
|
|---|
| 2872 | while ( (uTimesGen & 1) /* update in progress */
|
|---|
| 2873 | || uTimesGen != ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen))
|
|---|
| 2874 | {
|
|---|
| 2875 | RTThreadYield();
|
|---|
| 2876 | uTimesGen = ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen);
|
|---|
| 2877 | cNsTotal = pVCpu->tm.s.cNsTotal;
|
|---|
| 2878 | cNsExecuting = pVCpu->tm.s.cNsExecuting;
|
|---|
| 2879 | cNsHalted = pVCpu->tm.s.cNsHalted;
|
|---|
| 2880 | cNsOther = pVCpu->tm.s.cNsOther;
|
|---|
| 2881 | }
|
|---|
| 2882 |
|
|---|
| 2883 | /*
|
|---|
| 2884 | * Fill in the return values.
|
|---|
| 2885 | */
|
|---|
| 2886 | if (pcNsTotal)
|
|---|
| 2887 | *pcNsTotal = cNsTotal;
|
|---|
| 2888 | if (pcNsExecuting)
|
|---|
| 2889 | *pcNsExecuting = cNsExecuting;
|
|---|
| 2890 | if (pcNsHalted)
|
|---|
| 2891 | *pcNsHalted = cNsHalted;
|
|---|
| 2892 | if (pcNsOther)
|
|---|
| 2893 | *pcNsOther = cNsOther;
|
|---|
| 2894 |
|
|---|
| 2895 | return VINF_SUCCESS;
|
|---|
| 2896 |
|
|---|
| 2897 | #else
|
|---|
| 2898 | return VERR_NOT_IMPLEMENTED;
|
|---|
| 2899 | #endif
|
|---|
| 2900 | }
|
|---|
| 2901 |
|
|---|
| 2902 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 2903 |
|
|---|
| 2904 | /**
|
|---|
| 2905 | * Helper for tmR3CpuLoadTimer.
|
|---|
| 2906 | * @returns
|
|---|
| 2907 | * @param pState The state to update.
|
|---|
| 2908 | * @param cNsTotalDelta Total time.
|
|---|
| 2909 | * @param cNsExecutingDelta Time executing.
|
|---|
| 2910 | * @param cNsHaltedDelta Time halted.
|
|---|
| 2911 | */
|
|---|
| 2912 | DECLINLINE(void) tmR3CpuLoadTimerMakeUpdate(PTMCPULOADSTATE pState,
|
|---|
| 2913 | uint64_t cNsTotal,
|
|---|
| 2914 | uint64_t cNsExecuting,
|
|---|
| 2915 | uint64_t cNsHalted)
|
|---|
| 2916 | {
|
|---|
| 2917 | /* Calc deltas */
|
|---|
| 2918 | uint64_t cNsTotalDelta = cNsTotal - pState->cNsPrevTotal;
|
|---|
| 2919 | pState->cNsPrevTotal = cNsTotal;
|
|---|
| 2920 |
|
|---|
| 2921 | uint64_t cNsExecutingDelta = cNsExecuting - pState->cNsPrevExecuting;
|
|---|
| 2922 | pState->cNsPrevExecuting = cNsExecuting;
|
|---|
| 2923 |
|
|---|
| 2924 | uint64_t cNsHaltedDelta = cNsHalted - pState->cNsPrevHalted;
|
|---|
| 2925 | pState->cNsPrevHalted = cNsHalted;
|
|---|
| 2926 |
|
|---|
| 2927 | /* Calc pcts. */
|
|---|
| 2928 | if (!cNsTotalDelta)
|
|---|
| 2929 | {
|
|---|
| 2930 | pState->cPctExecuting = 0;
|
|---|
| 2931 | pState->cPctHalted = 100;
|
|---|
| 2932 | pState->cPctOther = 0;
|
|---|
| 2933 | }
|
|---|
| 2934 | else if (cNsTotalDelta < UINT64_MAX / 4)
|
|---|
| 2935 | {
|
|---|
| 2936 | pState->cPctExecuting = (uint8_t)(cNsExecutingDelta * 100 / cNsTotalDelta);
|
|---|
| 2937 | pState->cPctHalted = (uint8_t)(cNsHaltedDelta * 100 / cNsTotalDelta);
|
|---|
| 2938 | pState->cPctOther = (uint8_t)((cNsTotalDelta - cNsExecutingDelta - cNsHaltedDelta) * 100 / cNsTotalDelta);
|
|---|
| 2939 | }
|
|---|
| 2940 | else
|
|---|
| 2941 | {
|
|---|
| 2942 | pState->cPctExecuting = 0;
|
|---|
| 2943 | pState->cPctHalted = 100;
|
|---|
| 2944 | pState->cPctOther = 0;
|
|---|
| 2945 | }
|
|---|
| 2946 | }
|
|---|
| 2947 |
|
|---|
| 2948 |
|
|---|
| 2949 | /**
|
|---|
| 2950 | * Timer callback that calculates the CPU load since the last time it was
|
|---|
| 2951 | * called.
|
|---|
| 2952 | *
|
|---|
| 2953 | * @param pVM Pointer to the VM.
|
|---|
| 2954 | * @param pTimer The timer.
|
|---|
| 2955 | * @param pvUser NULL, unused.
|
|---|
| 2956 | */
|
|---|
| 2957 | static DECLCALLBACK(void) tmR3CpuLoadTimer(PVM pVM, PTMTIMER pTimer, void *pvUser)
|
|---|
| 2958 | {
|
|---|
| 2959 | /*
|
|---|
| 2960 | * Re-arm the timer first.
|
|---|
| 2961 | */
|
|---|
| 2962 | int rc = TMTimerSetMillies(pTimer, 1000);
|
|---|
| 2963 | AssertLogRelRC(rc);
|
|---|
| 2964 | NOREF(pvUser);
|
|---|
| 2965 |
|
|---|
| 2966 | /*
|
|---|
| 2967 | * Update the values for each CPU.
|
|---|
| 2968 | */
|
|---|
| 2969 | uint64_t cNsTotalAll = 0;
|
|---|
| 2970 | uint64_t cNsExecutingAll = 0;
|
|---|
| 2971 | uint64_t cNsHaltedAll = 0;
|
|---|
| 2972 | for (VMCPUID iCpu = 0; iCpu < pVM->cCpus; iCpu++)
|
|---|
| 2973 | {
|
|---|
| 2974 | PVMCPU pVCpu = &pVM->aCpus[iCpu];
|
|---|
| 2975 |
|
|---|
| 2976 | /* Try get a stable data set. */
|
|---|
| 2977 | uint32_t cTries = 3;
|
|---|
| 2978 | uint32_t uTimesGen = ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen);
|
|---|
| 2979 | uint64_t cNsTotal = pVCpu->tm.s.cNsTotal;
|
|---|
| 2980 | uint64_t cNsExecuting = pVCpu->tm.s.cNsExecuting;
|
|---|
| 2981 | uint64_t cNsHalted = pVCpu->tm.s.cNsHalted;
|
|---|
| 2982 | while (RT_UNLIKELY( (uTimesGen & 1) /* update in progress */
|
|---|
| 2983 | || uTimesGen != ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen)))
|
|---|
| 2984 | {
|
|---|
| 2985 | if (!--cTries)
|
|---|
| 2986 | break;
|
|---|
| 2987 | ASMNopPause();
|
|---|
| 2988 | uTimesGen = ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen);
|
|---|
| 2989 | cNsTotal = pVCpu->tm.s.cNsTotal;
|
|---|
| 2990 | cNsExecuting = pVCpu->tm.s.cNsExecuting;
|
|---|
| 2991 | cNsHalted = pVCpu->tm.s.cNsHalted;
|
|---|
| 2992 | }
|
|---|
| 2993 |
|
|---|
| 2994 | /* Totals */
|
|---|
| 2995 | cNsTotalAll += cNsTotal;
|
|---|
| 2996 | cNsExecutingAll += cNsExecuting;
|
|---|
| 2997 | cNsHaltedAll += cNsHalted;
|
|---|
| 2998 |
|
|---|
| 2999 | /* Calc the PCTs and update the state. */
|
|---|
| 3000 | tmR3CpuLoadTimerMakeUpdate(&pVCpu->tm.s.CpuLoad, cNsTotal, cNsExecuting, cNsHalted);
|
|---|
| 3001 | }
|
|---|
| 3002 |
|
|---|
| 3003 | /*
|
|---|
| 3004 | * Update the value for all the CPUs.
|
|---|
| 3005 | */
|
|---|
| 3006 | tmR3CpuLoadTimerMakeUpdate(&pVM->tm.s.CpuLoad, cNsTotalAll, cNsExecutingAll, cNsHaltedAll);
|
|---|
| 3007 |
|
|---|
| 3008 | /** @todo Try add 1, 5 and 15 min load stats. */
|
|---|
| 3009 |
|
|---|
| 3010 | }
|
|---|
| 3011 |
|
|---|
| 3012 | #endif /* !VBOX_WITHOUT_NS_ACCOUNTING */
|
|---|
| 3013 |
|
|---|
| 3014 | /**
|
|---|
| 3015 | * Gets the 5 char clock name for the info tables.
|
|---|
| 3016 | *
|
|---|
| 3017 | * @returns The name.
|
|---|
| 3018 | * @param enmClock The clock.
|
|---|
| 3019 | */
|
|---|
| 3020 | DECLINLINE(const char *) tmR3Get5CharClockName(TMCLOCK enmClock)
|
|---|
| 3021 | {
|
|---|
| 3022 | switch (enmClock)
|
|---|
| 3023 | {
|
|---|
| 3024 | case TMCLOCK_REAL: return "Real ";
|
|---|
| 3025 | case TMCLOCK_VIRTUAL: return "Virt ";
|
|---|
| 3026 | case TMCLOCK_VIRTUAL_SYNC: return "VrSy ";
|
|---|
| 3027 | case TMCLOCK_TSC: return "TSC ";
|
|---|
| 3028 | default: return "Bad ";
|
|---|
| 3029 | }
|
|---|
| 3030 | }
|
|---|
| 3031 |
|
|---|
| 3032 |
|
|---|
| 3033 | /**
|
|---|
| 3034 | * Display all timers.
|
|---|
| 3035 | *
|
|---|
| 3036 | * @param pVM Pointer to the VM.
|
|---|
| 3037 | * @param pHlp The info helpers.
|
|---|
| 3038 | * @param pszArgs Arguments, ignored.
|
|---|
| 3039 | */
|
|---|
| 3040 | static DECLCALLBACK(void) tmR3TimerInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
|
|---|
| 3041 | {
|
|---|
| 3042 | NOREF(pszArgs);
|
|---|
| 3043 | pHlp->pfnPrintf(pHlp,
|
|---|
| 3044 | "Timers (pVM=%p)\n"
|
|---|
| 3045 | "%.*s %.*s %.*s %.*s Clock %18s %18s %6s %-25s Description\n",
|
|---|
| 3046 | pVM,
|
|---|
| 3047 | sizeof(RTR3PTR) * 2, "pTimerR3 ",
|
|---|
| 3048 | sizeof(int32_t) * 2, "offNext ",
|
|---|
| 3049 | sizeof(int32_t) * 2, "offPrev ",
|
|---|
| 3050 | sizeof(int32_t) * 2, "offSched ",
|
|---|
| 3051 | "Time",
|
|---|
| 3052 | "Expire",
|
|---|
| 3053 | "HzHint",
|
|---|
| 3054 | "State");
|
|---|
| 3055 | TM_LOCK_TIMERS(pVM);
|
|---|
| 3056 | for (PTMTIMERR3 pTimer = pVM->tm.s.pCreated; pTimer; pTimer = pTimer->pBigNext)
|
|---|
| 3057 | {
|
|---|
| 3058 | pHlp->pfnPrintf(pHlp,
|
|---|
| 3059 | "%p %08RX32 %08RX32 %08RX32 %s %18RU64 %18RU64 %6RU32 %-25s %s\n",
|
|---|
| 3060 | pTimer,
|
|---|
| 3061 | pTimer->offNext,
|
|---|
| 3062 | pTimer->offPrev,
|
|---|
| 3063 | pTimer->offScheduleNext,
|
|---|
| 3064 | tmR3Get5CharClockName(pTimer->enmClock),
|
|---|
| 3065 | TMTimerGet(pTimer),
|
|---|
| 3066 | pTimer->u64Expire,
|
|---|
| 3067 | pTimer->uHzHint,
|
|---|
| 3068 | tmTimerState(pTimer->enmState),
|
|---|
| 3069 | pTimer->pszDesc);
|
|---|
| 3070 | }
|
|---|
| 3071 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 3072 | }
|
|---|
| 3073 |
|
|---|
| 3074 |
|
|---|
| 3075 | /**
|
|---|
| 3076 | * Display all active timers.
|
|---|
| 3077 | *
|
|---|
| 3078 | * @param pVM Pointer to the VM.
|
|---|
| 3079 | * @param pHlp The info helpers.
|
|---|
| 3080 | * @param pszArgs Arguments, ignored.
|
|---|
| 3081 | */
|
|---|
| 3082 | static DECLCALLBACK(void) tmR3TimerInfoActive(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
|
|---|
| 3083 | {
|
|---|
| 3084 | NOREF(pszArgs);
|
|---|
| 3085 | pHlp->pfnPrintf(pHlp,
|
|---|
| 3086 | "Active Timers (pVM=%p)\n"
|
|---|
| 3087 | "%.*s %.*s %.*s %.*s Clock %18s %18s %6s %-25s Description\n",
|
|---|
| 3088 | pVM,
|
|---|
| 3089 | sizeof(RTR3PTR) * 2, "pTimerR3 ",
|
|---|
| 3090 | sizeof(int32_t) * 2, "offNext ",
|
|---|
| 3091 | sizeof(int32_t) * 2, "offPrev ",
|
|---|
| 3092 | sizeof(int32_t) * 2, "offSched ",
|
|---|
| 3093 | "Time",
|
|---|
| 3094 | "Expire",
|
|---|
| 3095 | "HzHint",
|
|---|
| 3096 | "State");
|
|---|
| 3097 | for (unsigned iQueue = 0; iQueue < TMCLOCK_MAX; iQueue++)
|
|---|
| 3098 | {
|
|---|
| 3099 | TM_LOCK_TIMERS(pVM);
|
|---|
| 3100 | for (PTMTIMERR3 pTimer = TMTIMER_GET_HEAD(&pVM->tm.s.paTimerQueuesR3[iQueue]);
|
|---|
| 3101 | pTimer;
|
|---|
| 3102 | pTimer = TMTIMER_GET_NEXT(pTimer))
|
|---|
| 3103 | {
|
|---|
| 3104 | pHlp->pfnPrintf(pHlp,
|
|---|
| 3105 | "%p %08RX32 %08RX32 %08RX32 %s %18RU64 %18RU64 %6RU32 %-25s %s\n",
|
|---|
| 3106 | pTimer,
|
|---|
| 3107 | pTimer->offNext,
|
|---|
| 3108 | pTimer->offPrev,
|
|---|
| 3109 | pTimer->offScheduleNext,
|
|---|
| 3110 | tmR3Get5CharClockName(pTimer->enmClock),
|
|---|
| 3111 | TMTimerGet(pTimer),
|
|---|
| 3112 | pTimer->u64Expire,
|
|---|
| 3113 | pTimer->uHzHint,
|
|---|
| 3114 | tmTimerState(pTimer->enmState),
|
|---|
| 3115 | pTimer->pszDesc);
|
|---|
| 3116 | }
|
|---|
| 3117 | TM_UNLOCK_TIMERS(pVM);
|
|---|
| 3118 | }
|
|---|
| 3119 | }
|
|---|
| 3120 |
|
|---|
| 3121 |
|
|---|
| 3122 | /**
|
|---|
| 3123 | * Display all clocks.
|
|---|
| 3124 | *
|
|---|
| 3125 | * @param pVM Pointer to the VM.
|
|---|
| 3126 | * @param pHlp The info helpers.
|
|---|
| 3127 | * @param pszArgs Arguments, ignored.
|
|---|
| 3128 | */
|
|---|
| 3129 | static DECLCALLBACK(void) tmR3InfoClocks(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
|
|---|
| 3130 | {
|
|---|
| 3131 | NOREF(pszArgs);
|
|---|
| 3132 |
|
|---|
| 3133 | /*
|
|---|
| 3134 | * Read the times first to avoid more than necessary time variation.
|
|---|
| 3135 | */
|
|---|
| 3136 | const uint64_t u64Virtual = TMVirtualGet(pVM);
|
|---|
| 3137 | const uint64_t u64VirtualSync = TMVirtualSyncGet(pVM);
|
|---|
| 3138 | const uint64_t u64Real = TMRealGet(pVM);
|
|---|
| 3139 |
|
|---|
| 3140 | for (VMCPUID i = 0; i < pVM->cCpus; i++)
|
|---|
| 3141 | {
|
|---|
| 3142 | PVMCPU pVCpu = &pVM->aCpus[i];
|
|---|
| 3143 | uint64_t u64TSC = TMCpuTickGet(pVCpu);
|
|---|
| 3144 |
|
|---|
| 3145 | /*
|
|---|
| 3146 | * TSC
|
|---|
| 3147 | */
|
|---|
| 3148 | pHlp->pfnPrintf(pHlp,
|
|---|
| 3149 | "Cpu Tick: %18RU64 (%#016RX64) %RU64Hz %s%s",
|
|---|
| 3150 | u64TSC, u64TSC, TMCpuTicksPerSecond(pVM),
|
|---|
| 3151 | pVCpu->tm.s.fTSCTicking ? "ticking" : "paused",
|
|---|
| 3152 | pVM->tm.s.fTSCVirtualized ? " - virtualized" : "");
|
|---|
| 3153 | if (pVM->tm.s.fTSCUseRealTSC)
|
|---|
| 3154 | {
|
|---|
| 3155 | pHlp->pfnPrintf(pHlp, " - real tsc");
|
|---|
| 3156 | if (pVCpu->tm.s.offTSCRawSrc)
|
|---|
| 3157 | pHlp->pfnPrintf(pHlp, "\n offset %RU64", pVCpu->tm.s.offTSCRawSrc);
|
|---|
| 3158 | }
|
|---|
| 3159 | else
|
|---|
| 3160 | pHlp->pfnPrintf(pHlp, " - virtual clock");
|
|---|
| 3161 | pHlp->pfnPrintf(pHlp, "\n");
|
|---|
| 3162 | }
|
|---|
| 3163 |
|
|---|
| 3164 | /*
|
|---|
| 3165 | * virtual
|
|---|
| 3166 | */
|
|---|
| 3167 | pHlp->pfnPrintf(pHlp,
|
|---|
| 3168 | " Virtual: %18RU64 (%#016RX64) %RU64Hz %s",
|
|---|
| 3169 | u64Virtual, u64Virtual, TMVirtualGetFreq(pVM),
|
|---|
| 3170 | pVM->tm.s.cVirtualTicking ? "ticking" : "paused");
|
|---|
| 3171 | if (pVM->tm.s.fVirtualWarpDrive)
|
|---|
| 3172 | pHlp->pfnPrintf(pHlp, " WarpDrive %RU32 %%", pVM->tm.s.u32VirtualWarpDrivePercentage);
|
|---|
| 3173 | pHlp->pfnPrintf(pHlp, "\n");
|
|---|
| 3174 |
|
|---|
| 3175 | /*
|
|---|
| 3176 | * virtual sync
|
|---|
| 3177 | */
|
|---|
| 3178 | pHlp->pfnPrintf(pHlp,
|
|---|
| 3179 | "VirtSync: %18RU64 (%#016RX64) %s%s",
|
|---|
| 3180 | u64VirtualSync, u64VirtualSync,
|
|---|
| 3181 | pVM->tm.s.fVirtualSyncTicking ? "ticking" : "paused",
|
|---|
| 3182 | pVM->tm.s.fVirtualSyncCatchUp ? " - catchup" : "");
|
|---|
| 3183 | if (pVM->tm.s.offVirtualSync)
|
|---|
| 3184 | {
|
|---|
| 3185 | pHlp->pfnPrintf(pHlp, "\n offset %RU64", pVM->tm.s.offVirtualSync);
|
|---|
| 3186 | if (pVM->tm.s.u32VirtualSyncCatchUpPercentage)
|
|---|
| 3187 | pHlp->pfnPrintf(pHlp, " catch-up rate %u %%", pVM->tm.s.u32VirtualSyncCatchUpPercentage);
|
|---|
| 3188 | }
|
|---|
| 3189 | pHlp->pfnPrintf(pHlp, "\n");
|
|---|
| 3190 |
|
|---|
| 3191 | /*
|
|---|
| 3192 | * real
|
|---|
| 3193 | */
|
|---|
| 3194 | pHlp->pfnPrintf(pHlp,
|
|---|
| 3195 | " Real: %18RU64 (%#016RX64) %RU64Hz\n",
|
|---|
| 3196 | u64Real, u64Real, TMRealGetFreq(pVM));
|
|---|
| 3197 | }
|
|---|
| 3198 |
|
|---|
