| 1 | /* $Id: TM.cpp 104131 2024-04-03 08:02:36Z vboxsync $ */
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| 2 | /** @file
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| 3 | * TM - Time Manager.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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| 26 | */
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| 27 |
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| 28 | /** @page pg_tm TM - The Time Manager
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| 29 | *
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| 30 | * The Time Manager abstracts the CPU clocks and manages timers used by the VMM,
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| 31 | * device and drivers.
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| 32 | *
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| 33 | * @see grp_tm
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| 34 | *
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| 35 | *
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| 36 | * @section sec_tm_clocks Clocks
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| 37 | *
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| 38 | * There are currently 4 clocks:
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| 39 | * - Virtual (guest).
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| 40 | * - Synchronous virtual (guest).
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| 41 | * - CPU Tick (TSC) (guest). Only current use is rdtsc emulation. Usually a
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| 42 | * function of the virtual clock.
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| 43 | * - Real (host). This is only used for display updates atm.
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| 44 | *
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| 45 | * The most important clocks are the three first ones and of these the second is
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| 46 | * the most interesting.
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| 47 | *
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| 48 | *
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| 49 | * The synchronous virtual clock is tied to the virtual clock except that it
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| 50 | * will take into account timer delivery lag caused by host scheduling. It will
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| 51 | * normally never advance beyond the head timer, and when lagging too far behind
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| 52 | * it will gradually speed up to catch up with the virtual clock. All devices
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| 53 | * implementing time sources accessible to and used by the guest is using this
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| 54 | * clock (for timers and other things). This ensures consistency between the
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| 55 | * time sources.
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| 56 | *
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| 57 | * The virtual clock is implemented as an offset to a monotonic, high
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| 58 | * resolution, wall clock. The current time source is using the RTTimeNanoTS()
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| 59 | * machinery based upon the Global Info Pages (GIP), that is, we're using TSC
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| 60 | * deltas (usually 10 ms) to fill the gaps between GIP updates. The result is
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| 61 | * a fairly high res clock that works in all contexts and on all hosts. The
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| 62 | * virtual clock is paused when the VM isn't in the running state.
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| 63 | *
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| 64 | * The CPU tick (TSC) is normally virtualized as a function of the synchronous
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| 65 | * virtual clock, where the frequency defaults to the host cpu frequency (as we
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| 66 | * measure it). In this mode it is possible to configure the frequency. Another
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| 67 | * (non-default) option is to use the raw unmodified host TSC values. And yet
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| 68 | * another, to tie it to time spent executing guest code. All these things are
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| 69 | * configurable should non-default behavior be desirable.
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| 70 | *
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| 71 | * The real clock is a monotonic clock (when available) with relatively low
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| 72 | * resolution, though this a bit host specific. Note that we're currently not
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| 73 | * servicing timers using the real clock when the VM is not running, this is
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| 74 | * simply because it has not been needed yet therefore not implemented.
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| 75 | *
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| 76 | *
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| 77 | * @subsection subsec_tm_timesync Guest Time Sync / UTC time
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| 78 | *
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| 79 | * Guest time syncing is primarily taken care of by the VMM device. The
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| 80 | * principle is very simple, the guest additions periodically asks the VMM
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| 81 | * device what the current UTC time is and makes adjustments accordingly.
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| 82 | *
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| 83 | * A complicating factor is that the synchronous virtual clock might be doing
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| 84 | * catchups and the guest perception is currently a little bit behind the world
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| 85 | * but it will (hopefully) be catching up soon as we're feeding timer interrupts
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| 86 | * at a slightly higher rate. Adjusting the guest clock to the current wall
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| 87 | * time in the real world would be a bad idea then because the guest will be
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| 88 | * advancing too fast and run ahead of world time (if the catchup works out).
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| 89 | * To solve this problem TM provides the VMM device with an UTC time source that
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| 90 | * gets adjusted with the current lag, so that when the guest eventually catches
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| 91 | * up the lag it will be showing correct real world time.
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| 92 | *
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| 93 | *
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| 94 | * @section sec_tm_timers Timers
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| 95 | *
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| 96 | * The timers can use any of the TM clocks described in the previous section.
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| 97 | * Each clock has its own scheduling facility, or timer queue if you like.
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| 98 | * There are a few factors which makes it a bit complex. First, there is the
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| 99 | * usual R0 vs R3 vs. RC thing. Then there are multiple threads, and then there
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| 100 | * is the timer thread that periodically checks whether any timers has expired
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| 101 | * without EMT noticing. On the API level, all but the create and save APIs
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| 102 | * must be multithreaded. EMT will always run the timers.
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| 103 | *
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| 104 | * The design is using a doubly linked list of active timers which is ordered
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| 105 | * by expire date. This list is only modified by the EMT thread. Updates to
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| 106 | * the list are batched in a singly linked list, which is then processed by the
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| 107 | * EMT thread at the first opportunity (immediately, next time EMT modifies a
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| 108 | * timer on that clock, or next timer timeout). Both lists are offset based and
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| 109 | * all the elements are therefore allocated from the hyper heap.
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| 110 | *
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| 111 | * For figuring out when there is need to schedule and run timers TM will:
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| 112 | * - Poll whenever somebody queries the virtual clock.
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| 113 | * - Poll the virtual clocks from the EM and REM loops.
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| 114 | * - Poll the virtual clocks from trap exit path.
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| 115 | * - Poll the virtual clocks and calculate first timeout from the halt loop.
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| 116 | * - Employ a thread which periodically (100Hz) polls all the timer queues.
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| 117 | *
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| 118 | *
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| 119 | * @image html TMTIMER-Statechart-Diagram.gif
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| 120 | *
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| 121 | * @section sec_tm_timer Logging
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| 122 | *
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| 123 | * Level 2: Logs a most of the timer state transitions and queue servicing.
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| 124 | * Level 3: Logs a few oddments.
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| 125 | * Level 4: Logs TMCLOCK_VIRTUAL_SYNC catch-up events.
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| 126 | *
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| 127 | */
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| 128 |
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| 129 |
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| 130 | /*********************************************************************************************************************************
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| 131 | * Header Files *
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| 132 | *********************************************************************************************************************************/
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| 133 | #define LOG_GROUP LOG_GROUP_TM
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| 134 | #ifdef DEBUG_bird
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| 135 | # define DBGFTRACE_DISABLED /* annoying */
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| 136 | #endif
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| 137 | #include <VBox/vmm/tm.h>
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| 138 | #include <VBox/vmm/vmm.h>
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| 139 | #include <VBox/vmm/mm.h>
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| 140 | #include <VBox/vmm/hm.h>
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| 141 | #include <VBox/vmm/nem.h>
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| 142 | #include <VBox/vmm/gim.h>
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| 143 | #include <VBox/vmm/ssm.h>
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| 144 | #include <VBox/vmm/dbgf.h>
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| 145 | #include <VBox/vmm/dbgftrace.h>
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| 146 | #include <VBox/vmm/pdmapi.h>
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| 147 | #include <VBox/vmm/iom.h>
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| 148 | #include "TMInternal.h"
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| 149 | #include <VBox/vmm/vm.h>
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| 150 | #include <VBox/vmm/uvm.h>
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| 151 |
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| 152 | #include <VBox/vmm/pdmdev.h>
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| 153 | #include <VBox/log.h>
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| 154 | #include <VBox/param.h>
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| 155 | #include <VBox/err.h>
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| 156 |
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| 157 | #include <iprt/asm.h>
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| 158 | #include <iprt/asm-math.h>
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| 159 | #include <iprt/assert.h>
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| 160 | #include <iprt/env.h>
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| 161 | #include <iprt/file.h>
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| 162 | #include <iprt/getopt.h>
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| 163 | #include <iprt/mem.h>
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| 164 | #include <iprt/rand.h>
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| 165 | #include <iprt/semaphore.h>
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| 166 | #include <iprt/string.h>
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| 167 | #include <iprt/thread.h>
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| 168 | #include <iprt/time.h>
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| 169 | #include <iprt/timer.h>
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| 170 |
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| 171 | #include "TMInline.h"
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| 172 |
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| 173 |
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| 174 | /*********************************************************************************************************************************
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| 175 | * Defined Constants And Macros *
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| 176 | *********************************************************************************************************************************/
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| 177 | /** The current saved state version.*/
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| 178 | #define TM_SAVED_STATE_VERSION 3
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| 179 |
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| 180 |
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| 181 | /*********************************************************************************************************************************
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| 182 | * Internal Functions *
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| 183 | *********************************************************************************************************************************/
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| 184 | static bool tmR3HasFixedTSC(PVM pVM);
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| 185 | static uint64_t tmR3CalibrateTSC(void);
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| 186 | static DECLCALLBACK(int) tmR3Save(PVM pVM, PSSMHANDLE pSSM);
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| 187 | static DECLCALLBACK(int) tmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
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| 188 | #ifdef VBOX_WITH_STATISTICS
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| 189 | static void tmR3TimerQueueRegisterStats(PVM pVM, PTMTIMERQUEUE pQueue, uint32_t cTimers);
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| 190 | #endif
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| 191 | static DECLCALLBACK(void) tmR3TimerCallback(PRTTIMER pTimer, void *pvUser, uint64_t iTick);
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| 192 | static DECLCALLBACK(int) tmR3SetWarpDrive(PUVM pUVM, uint32_t u32Percent);
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| 193 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
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| 194 | static DECLCALLBACK(void) tmR3CpuLoadTimer(PVM pVM, TMTIMERHANDLE hTimer, void *pvUser);
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| 195 | #endif
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| 196 | static DECLCALLBACK(void) tmR3TimerInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
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| 197 | static DECLCALLBACK(void) tmR3TimerInfoActive(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
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| 198 | static DECLCALLBACK(void) tmR3InfoClocks(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
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| 199 | static DECLCALLBACK(void) tmR3InfoCpuLoad(PVM pVM, PCDBGFINFOHLP pHlp, int cArgs, char **papszArgs);
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| 200 | static DECLCALLBACK(VBOXSTRICTRC) tmR3CpuTickParavirtDisable(PVM pVM, PVMCPU pVCpu, void *pvData);
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| 201 | static const char *tmR3GetTSCModeName(PVM pVM);
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| 202 | static const char *tmR3GetTSCModeNameEx(TMTSCMODE enmMode);
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| 203 | static int tmR3TimerQueueGrow(PVM pVM, PTMTIMERQUEUE pQueue, uint32_t cNewTimers);
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| 204 |
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| 205 |
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| 206 | /**
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| 207 | * Initializes the TM.
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| 208 | *
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| 209 | * @returns VBox status code.
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| 210 | * @param pVM The cross context VM structure.
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| 211 | */
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| 212 | VMM_INT_DECL(int) TMR3Init(PVM pVM)
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| 213 | {
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| 214 | LogFlow(("TMR3Init:\n"));
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| 215 |
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| 216 | /*
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| 217 | * Assert alignment and sizes.
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| 218 | */
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| 219 | AssertCompileMemberAlignment(VM, tm.s, 32);
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| 220 | AssertCompile(sizeof(pVM->tm.s) <= sizeof(pVM->tm.padding));
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| 221 | AssertCompileMemberAlignment(TM, VirtualSyncLock, 8);
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| 222 |
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| 223 | /*
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| 224 | * Init the structure.
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| 225 | */
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| 226 | pVM->tm.s.idTimerCpu = pVM->cCpus - 1; /* The last CPU. */
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| 227 |
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| 228 | int rc = PDMR3CritSectInit(pVM, &pVM->tm.s.VirtualSyncLock, RT_SRC_POS, "TM VirtualSync Lock");
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| 229 | AssertLogRelRCReturn(rc, rc);
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| 230 |
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| 231 | strcpy(pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL].szName, "virtual");
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| 232 | strcpy(pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL_SYNC].szName, "virtual_sync"); /* Underscore is for STAM ordering issue. */
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| 233 | strcpy(pVM->tm.s.aTimerQueues[TMCLOCK_REAL].szName, "real");
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| 234 | strcpy(pVM->tm.s.aTimerQueues[TMCLOCK_TSC].szName, "tsc");
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| 235 |
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| 236 | for (uint32_t i = 0; i < RT_ELEMENTS(pVM->tm.s.aTimerQueues); i++)
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| 237 | {
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| 238 | Assert(pVM->tm.s.aTimerQueues[i].szName[0] != '\0');
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| 239 | pVM->tm.s.aTimerQueues[i].enmClock = (TMCLOCK)i;
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| 240 | pVM->tm.s.aTimerQueues[i].u64Expire = INT64_MAX;
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| 241 | pVM->tm.s.aTimerQueues[i].idxActive = UINT32_MAX;
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| 242 | pVM->tm.s.aTimerQueues[i].idxSchedule = UINT32_MAX;
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| 243 | pVM->tm.s.aTimerQueues[i].idxFreeHint = 1;
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| 244 | pVM->tm.s.aTimerQueues[i].fBeingProcessed = false;
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| 245 | pVM->tm.s.aTimerQueues[i].fCannotGrow = false;
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| 246 | pVM->tm.s.aTimerQueues[i].hThread = NIL_RTTHREAD;
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| 247 | pVM->tm.s.aTimerQueues[i].hWorkerEvt = NIL_SUPSEMEVENT;
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| 248 |
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| 249 | rc = PDMR3CritSectInit(pVM, &pVM->tm.s.aTimerQueues[i].TimerLock, RT_SRC_POS,
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| 250 | "TM %s queue timer lock", pVM->tm.s.aTimerQueues[i].szName);
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| 251 | AssertLogRelRCReturn(rc, rc);
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| 252 |
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| 253 | rc = PDMR3CritSectRwInit(pVM, &pVM->tm.s.aTimerQueues[i].AllocLock, RT_SRC_POS,
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| 254 | "TM %s queue alloc lock", pVM->tm.s.aTimerQueues[i].szName);
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| 255 | AssertLogRelRCReturn(rc, rc);
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| 256 | }
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| 257 |
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| 258 | /*
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| 259 | * We directly use the GIP to calculate the virtual time. We map the
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| 260 | * the GIP into the guest context so we can do this calculation there
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| 261 | * as well and save costly world switches.
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| 262 | */
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| 263 | PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
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| 264 | if (pGip || !SUPR3IsDriverless())
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| 265 | {
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| 266 | pVM->tm.s.pvGIPR3 = (void *)pGip;
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| 267 | AssertMsgReturn(pVM->tm.s.pvGIPR3, ("GIP support is now required!\n"), VERR_TM_GIP_REQUIRED);
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| 268 | AssertMsgReturn((pGip->u32Version >> 16) == (SUPGLOBALINFOPAGE_VERSION >> 16),
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| 269 | ("Unsupported GIP version %#x! (expected=%#x)\n", pGip->u32Version, SUPGLOBALINFOPAGE_VERSION),
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| 270 | VERR_TM_GIP_VERSION);
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| 271 |
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| 272 | /* Check assumptions made in TMAllVirtual.cpp about the GIP update interval. */
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| 273 | if ( pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC
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| 274 | && pGip->u32UpdateIntervalNS >= 250000000 /* 0.25s */)
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| 275 | return VMSetError(pVM, VERR_TM_GIP_UPDATE_INTERVAL_TOO_BIG, RT_SRC_POS,
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| 276 | N_("The GIP update interval is too big. u32UpdateIntervalNS=%RU32 (u32UpdateHz=%RU32)"),
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| 277 | pGip->u32UpdateIntervalNS, pGip->u32UpdateHz);
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| 278 |
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| 279 | /* Log GIP info that may come in handy. */
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| 280 | LogRel(("TM: GIP - u32Mode=%d (%s) u32UpdateHz=%u u32UpdateIntervalNS=%u enmUseTscDelta=%d (%s) fGetGipCpu=%#x cCpus=%d\n",
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| 281 | pGip->u32Mode, SUPGetGIPModeName(pGip), pGip->u32UpdateHz, pGip->u32UpdateIntervalNS,
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| 282 | pGip->enmUseTscDelta, SUPGetGIPTscDeltaModeName(pGip), pGip->fGetGipCpu, pGip->cCpus));
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| 283 | LogRel(("TM: GIP - u64CpuHz=%'RU64 (%#RX64) SUPGetCpuHzFromGip => %'RU64\n",
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| 284 | pGip->u64CpuHz, pGip->u64CpuHz, SUPGetCpuHzFromGip(pGip)));
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| 285 | for (uint32_t iCpuSet = 0; iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx); iCpuSet++)
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| 286 | {
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| 287 | uint16_t iGipCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
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| 288 | if (iGipCpu != UINT16_MAX)
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| 289 | LogRel(("TM: GIP - CPU: iCpuSet=%#x idCpu=%#x idApic=%#x iGipCpu=%#x i64TSCDelta=%RI64 enmState=%d u64CpuHz=%RU64(*) cErrors=%u\n",
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| 290 | iCpuSet, pGip->aCPUs[iGipCpu].idCpu, pGip->aCPUs[iGipCpu].idApic, iGipCpu, pGip->aCPUs[iGipCpu].i64TSCDelta,
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| 291 | pGip->aCPUs[iGipCpu].enmState, pGip->aCPUs[iGipCpu].u64CpuHz, pGip->aCPUs[iGipCpu].cErrors));
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| 292 | }
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| 293 | }
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| 294 |
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| 295 | /*
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| 296 | * Setup the VirtualGetRaw backend.
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| 297 | */
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| 298 | pVM->tm.s.pfnVirtualGetRaw = tmVirtualNanoTSRediscover;
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| 299 | pVM->tm.s.VirtualGetRawData.pfnRediscover = tmVirtualNanoTSRediscover;
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| 300 | pVM->tm.s.VirtualGetRawData.pfnBad = tmVirtualNanoTSBad;
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| 301 | pVM->tm.s.VirtualGetRawData.pfnBadCpuIndex = tmVirtualNanoTSBadCpuIndex;
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| 302 | pVM->tm.s.VirtualGetRawData.pu64Prev = &pVM->tm.s.u64VirtualRawPrev;
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| 303 |
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| 304 | /*
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| 305 | * Get our CFGM node, create it if necessary.
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| 306 | */
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| 307 | PCFGMNODE pCfgHandle = CFGMR3GetChild(CFGMR3GetRoot(pVM), "TM");
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| 308 | if (!pCfgHandle)
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| 309 | {
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| 310 | rc = CFGMR3InsertNode(CFGMR3GetRoot(pVM), "TM", &pCfgHandle);
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| 311 | AssertRCReturn(rc, rc);
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| 312 | }
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| 313 |
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| 314 | /*
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| 315 | * Specific errors about some obsolete TM settings (remove after 2015-12-03).
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| 316 | */
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| 317 | if (CFGMR3Exists(pCfgHandle, "TSCVirtualized"))
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| 318 | return VMSetError(pVM, VERR_CFGM_CONFIG_UNKNOWN_VALUE, RT_SRC_POS,
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| 319 | N_("Configuration error: TM setting \"TSCVirtualized\" is no longer supported. Use the \"TSCMode\" setting instead."));
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| 320 | if (CFGMR3Exists(pCfgHandle, "UseRealTSC"))
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| 321 | return VMSetError(pVM, VERR_CFGM_CONFIG_UNKNOWN_VALUE, RT_SRC_POS,
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| 322 | N_("Configuration error: TM setting \"UseRealTSC\" is no longer supported. Use the \"TSCMode\" setting instead."));
|
|---|
| 323 |
|
|---|
| 324 | if (CFGMR3Exists(pCfgHandle, "MaybeUseOffsettedHostTSC"))
|
|---|
| 325 | return VMSetError(pVM, VERR_CFGM_CONFIG_UNKNOWN_VALUE, RT_SRC_POS,
|
|---|
| 326 | N_("Configuration error: TM setting \"MaybeUseOffsettedHostTSC\" is no longer supported. Use the \"TSCMode\" setting instead."));
|
|---|
| 327 |
|
|---|
| 328 | /*
|
|---|
| 329 | * Validate the rest of the TM settings.
|
|---|
| 330 | */
|
|---|
| 331 | rc = CFGMR3ValidateConfig(pCfgHandle, "/TM/",
|
|---|
| 332 | "TSCMode|"
|
|---|
| 333 | "TSCModeSwitchAllowed|"
|
|---|
| 334 | "TSCTicksPerSecond|"
|
|---|
| 335 | "TSCTiedToExecution|"
|
|---|
| 336 | "TSCNotTiedToHalt|"
|
|---|
| 337 | "TSCMultiplier|"
|
|---|
| 338 | "ScheduleSlack|"
|
|---|
| 339 | "CatchUpStopThreshold|"
|
|---|
| 340 | "CatchUpGiveUpThreshold|"
|
|---|
| 341 | "CatchUpStartThreshold0|CatchUpStartThreshold1|CatchUpStartThreshold2|CatchUpStartThreshold3|"
|
|---|
| 342 | "CatchUpStartThreshold4|CatchUpStartThreshold5|CatchUpStartThreshold6|CatchUpStartThreshold7|"
|
|---|
| 343 | "CatchUpStartThreshold8|CatchUpStartThreshold9|"
|
|---|
| 344 | "CatchUpPrecentage0|CatchUpPrecentage1|CatchUpPrecentage2|CatchUpPrecentage3|"
|
|---|
| 345 | "CatchUpPrecentage4|CatchUpPrecentage5|CatchUpPrecentage6|CatchUpPrecentage7|"
|
|---|
| 346 | "CatchUpPrecentage8|CatchUpPrecentage9|"
|
|---|
| 347 | "UTCOffset|"
|
|---|
| 348 | "UTCTouchFileOnJump|"
|
|---|
| 349 | "WarpDrivePercentage|"
|
|---|
| 350 | "HostHzMax|"
|
|---|
| 351 | "HostHzFudgeFactorTimerCpu|"
|
|---|
| 352 | "HostHzFudgeFactorOtherCpu|"
|
|---|
| 353 | "HostHzFudgeFactorCatchUp100|"
|
|---|
| 354 | "HostHzFudgeFactorCatchUp200|"
|
|---|
| 355 | "HostHzFudgeFactorCatchUp400|"
|
|---|
| 356 | "TimerMillies"
|
|---|
| 357 | ,
|
|---|
| 358 | "",
|
|---|
| 359 | "TM", 0);
|
|---|
| 360 | if (RT_FAILURE(rc))
|
|---|
| 361 | return rc;
|
|---|
| 362 |
|
|---|
| 363 | /*
|
|---|
| 364 | * Determine the TSC configuration and frequency.
|
|---|
| 365 | */
|
|---|
| 366 | /** @cfgm{/TM/TSCMode, string, Depends on the CPU and VM config}
|
|---|
| 367 | * The name of the TSC mode to use: VirtTSCEmulated, RealTSCOffset or Dynamic.
|
|---|
| 368 | * The default depends on the VM configuration and the capabilities of the
|
|---|
| 369 | * host CPU. Other config options or runtime changes may override the TSC
|
|---|
| 370 | * mode specified here.
|
|---|
| 371 | */
|
|---|
| 372 | char szTSCMode[32];
|
|---|
| 373 | rc = CFGMR3QueryString(pCfgHandle, "TSCMode", szTSCMode, sizeof(szTSCMode));
|
|---|
| 374 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 375 | {
|
|---|
| 376 | /** @todo Rainy-day/never: Dynamic mode isn't currently suitable for SMP VMs, so
|
|---|
| 377 | * fall back on the more expensive emulated mode. With the current TSC handling
|
|---|
| 378 | * (frequent switching between offsetted mode and taking VM exits, on all VCPUs
|
|---|
| 379 | * without any kind of coordination) will lead to inconsistent TSC behavior with
|
|---|
| 380 | * guest SMP, including TSC going backwards. */
|
|---|
| 381 | pVM->tm.s.enmTSCMode = NEMR3NeedSpecialTscMode(pVM) ? TMTSCMODE_NATIVE_API
|
|---|
| 382 | : pVM->cCpus == 1 && tmR3HasFixedTSC(pVM) ? TMTSCMODE_DYNAMIC : TMTSCMODE_VIRT_TSC_EMULATED;
|
|---|
| 383 | }
|
|---|
| 384 | else if (RT_FAILURE(rc))
|
|---|
| 385 | return VMSetError(pVM, rc, RT_SRC_POS, N_("Configuration error: Failed to querying string value \"TSCMode\""));
|
|---|
| 386 | else
|
|---|
| 387 | {
|
|---|
| 388 | if (!RTStrCmp(szTSCMode, "VirtTSCEmulated"))
|
|---|
| 389 | pVM->tm.s.enmTSCMode = TMTSCMODE_VIRT_TSC_EMULATED;
|
|---|
| 390 | else if (!RTStrCmp(szTSCMode, "RealTSCOffset"))
|
|---|
| 391 | pVM->tm.s.enmTSCMode = TMTSCMODE_REAL_TSC_OFFSET;
|
|---|
| 392 | else if (!RTStrCmp(szTSCMode, "Dynamic"))
|
|---|
| 393 | pVM->tm.s.enmTSCMode = TMTSCMODE_DYNAMIC;
|
|---|
| 394 | else
|
|---|
| 395 | return VMSetError(pVM, rc, RT_SRC_POS, N_("Configuration error: Unrecognized TM TSC mode value \"%s\""), szTSCMode);
|
|---|
| 396 | if (NEMR3NeedSpecialTscMode(pVM))
|
|---|
| 397 | {
|
|---|
| 398 | LogRel(("TM: NEM overrides the /TM/TSCMode=%s settings.\n", szTSCMode));
|
|---|
| 399 | pVM->tm.s.enmTSCMode = TMTSCMODE_NATIVE_API;
|
|---|
| 400 | }
|
|---|
| 401 | }
|
|---|
| 402 |
|
|---|
| 403 | /**
|
|---|
| 404 | * @cfgm{/TM/TSCModeSwitchAllowed, bool, Whether TM TSC mode switch is allowed
|
|---|
| 405 | * at runtime}
|
|---|
| 406 | * When using paravirtualized guests, we dynamically switch TSC modes to a more
|
|---|
| 407 | * optimal one for performance. This setting allows overriding this behaviour.
|
|---|
| 408 | */
|
|---|
| 409 | rc = CFGMR3QueryBool(pCfgHandle, "TSCModeSwitchAllowed", &pVM->tm.s.fTSCModeSwitchAllowed);
|
|---|
| 410 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 411 | {
|
|---|
| 412 | /* This is finally determined in TMR3InitFinalize() as GIM isn't initialized yet. */
|
|---|
| 413 | pVM->tm.s.fTSCModeSwitchAllowed = true;
|
|---|
| 414 | }
|
|---|
| 415 | else if (RT_FAILURE(rc))
|
|---|
| 416 | return VMSetError(pVM, rc, RT_SRC_POS, N_("Configuration error: Failed to querying bool value \"TSCModeSwitchAllowed\""));
|
|---|
| 417 | if (pVM->tm.s.fTSCModeSwitchAllowed && pVM->tm.s.enmTSCMode == TMTSCMODE_NATIVE_API)
|
|---|
| 418 | {
|
|---|
| 419 | LogRel(("TM: NEM overrides the /TM/TSCModeSwitchAllowed setting.\n"));
|
|---|
| 420 | pVM->tm.s.fTSCModeSwitchAllowed = false;
|
|---|
| 421 | }
|
|---|
| 422 |
|
|---|
| 423 | /** @cfgm{/TM/TSCMultiplier, uint8_t}
|
|---|
| 424 | * This is a multiplier to apply to the host TSC while calculating the guest
|
|---|
| 425 | * TSC. It's recommended to avoid using a power-of-two value to reduce number
|
|---|
| 426 | * of zeros in least-significant-bits of the scaled TSC. Defaults to 43 on
|
|---|
| 427 | * ARM64 and 1 on all other hosts. */
|
|---|
| 428 | #ifdef RT_ARCH_ARM64
|
|---|
| 429 | pVM->tm.s.u8TSCMultiplier = 43; /* 125/3 + some fudge to get us >= 1GHz from 24MHz */
|
|---|
| 430 | #else
|
|---|
| 431 | pVM->tm.s.u8TSCMultiplier = 1;
|
|---|
| 432 | #endif
|
|---|
| 433 | rc = CFGMR3QueryU8Def(pCfgHandle, "TSCMultiplier", &pVM->tm.s.u8TSCMultiplier, pVM->tm.s.u8TSCMultiplier);
|
|---|
| 434 | if (RT_FAILURE(rc))
|
|---|
| 435 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 436 | N_("Configuration error: Failed to query 8-bit value \"TSCMultiplier\""));
|
|---|
| 437 | if (pVM->tm.s.u8TSCMultiplier == 0)
|
|---|
| 438 | return VMSetError(pVM, rc, RT_SRC_POS, N_("Configuration error: \"TSCMultiplier\" must not be zero!"));
|
|---|
| 439 |
|
|---|
| 440 | /** @cfgm{/TM/TSCTicksPerSecond, uint32_t, Current TSC frequency from GIP}
|
|---|
| 441 | * The number of TSC ticks per second (i.e. the TSC frequency). This will
|
|---|
| 442 | * override enmTSCMode.
|
|---|
| 443 | */
|
|---|
| 444 | pVM->tm.s.cTSCTicksPerSecondHost = tmR3CalibrateTSC();
|
|---|
| 445 | rc = CFGMR3QueryU64(pCfgHandle, "TSCTicksPerSecond", &pVM->tm.s.cTSCTicksPerSecond);
|
|---|
| 446 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 447 | {
|
|---|
| 448 | pVM->tm.s.cTSCTicksPerSecond = pVM->tm.s.cTSCTicksPerSecondHost * pVM->tm.s.u8TSCMultiplier;
|
|---|
| 449 | if ( ( pVM->tm.s.enmTSCMode == TMTSCMODE_DYNAMIC
|
|---|
| 450 | || pVM->tm.s.enmTSCMode == TMTSCMODE_VIRT_TSC_EMULATED)
|
|---|
| 451 | && pVM->tm.s.cTSCTicksPerSecond >= _4G)
|
|---|
| 452 | {
|
|---|
| 453 | pVM->tm.s.cTSCTicksPerSecond = _4G - 1; /* (A limitation of our math code) */
|
|---|
| 454 | pVM->tm.s.enmTSCMode = TMTSCMODE_VIRT_TSC_EMULATED;
|
|---|
| 455 | }
|
|---|
| 456 | }
|
|---|
| 457 | else if (RT_FAILURE(rc))
|
|---|
| 458 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 459 | N_("Configuration error: Failed to querying uint64_t value \"TSCTicksPerSecond\""));
|
|---|
| 460 | else if ( pVM->tm.s.cTSCTicksPerSecond < _1M
|
|---|
| 461 | || pVM->tm.s.cTSCTicksPerSecond >= _4G)
|
|---|
| 462 | return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS,
|
|---|
| 463 | N_("Configuration error: \"TSCTicksPerSecond\" = %RI64 is not in the range 1MHz..4GHz-1"),
|
|---|
| 464 | pVM->tm.s.cTSCTicksPerSecond);
|
|---|
| 465 | else if (pVM->tm.s.enmTSCMode != TMTSCMODE_NATIVE_API)
|
|---|
| 466 | pVM->tm.s.enmTSCMode = TMTSCMODE_VIRT_TSC_EMULATED;
|
|---|
| 467 | else
|
|---|
| 468 | {
|
|---|
| 469 | LogRel(("TM: NEM overrides the /TM/TSCTicksPerSecond=%RU64 setting.\n", pVM->tm.s.cTSCTicksPerSecond));
|
|---|
| 470 | pVM->tm.s.cTSCTicksPerSecond = pVM->tm.s.cTSCTicksPerSecondHost * pVM->tm.s.u8TSCMultiplier;
|
|---|
| 471 | }
|
|---|
| 472 |
|
|---|
| 473 | /** @cfgm{/TM/TSCTiedToExecution, bool, false}
|
|---|
| 474 | * Whether the TSC should be tied to execution. This will exclude most of the
|
|---|
| 475 | * virtualization overhead, but will by default include the time spent in the
|
|---|
| 476 | * halt state (see TM/TSCNotTiedToHalt). This setting will override all other
|
|---|
| 477 | * TSC settings except for TSCTicksPerSecond and TSCNotTiedToHalt, which should
|
|---|
| 478 | * be used avoided or used with great care. Note that this will only work right
|
|---|
| 479 | * together with VT-x or AMD-V, and with a single virtual CPU. */
|
|---|
| 480 | rc = CFGMR3QueryBoolDef(pCfgHandle, "TSCTiedToExecution", &pVM->tm.s.fTSCTiedToExecution, false);
|
|---|
| 481 | if (RT_FAILURE(rc))
|
|---|
| 482 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 483 | N_("Configuration error: Failed to querying bool value \"TSCTiedToExecution\""));
|
|---|
| 484 | if (pVM->tm.s.fTSCTiedToExecution && pVM->tm.s.enmTSCMode == TMTSCMODE_NATIVE_API)
|
|---|
| 485 | return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS, N_("/TM/TSCTiedToExecution is not supported in NEM mode!"));
|
|---|
| 486 | if (pVM->tm.s.fTSCTiedToExecution)
|
|---|
| 487 | pVM->tm.s.enmTSCMode = TMTSCMODE_VIRT_TSC_EMULATED;
|
|---|
| 488 |
|
|---|
| 489 |
|
|---|
| 490 | /** @cfgm{/TM/TSCNotTiedToHalt, bool, false}
|
|---|
| 491 | * This is used with /TM/TSCTiedToExecution to control how TSC operates
|
|---|
| 492 | * accross HLT instructions. When true HLT is considered execution time and
|
|---|
| 493 | * TSC continues to run, while when false (default) TSC stops during halt. */
|
|---|
| 494 | rc = CFGMR3QueryBoolDef(pCfgHandle, "TSCNotTiedToHalt", &pVM->tm.s.fTSCNotTiedToHalt, false);
|
|---|
| 495 | if (RT_FAILURE(rc))
|
|---|
| 496 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 497 | N_("Configuration error: Failed to querying bool value \"TSCNotTiedToHalt\""));
|
|---|
| 498 |
|
|---|
| 499 | /*
|
|---|
| 500 | * Configure the timer synchronous virtual time.
|
|---|
| 501 | */
|
|---|
| 502 | /** @cfgm{/TM/ScheduleSlack, uint32_t, ns, 0, UINT32_MAX, 100000}
|
|---|
| 503 | * Scheduling slack when processing timers. */
|
|---|
| 504 | rc = CFGMR3QueryU32(pCfgHandle, "ScheduleSlack", &pVM->tm.s.u32VirtualSyncScheduleSlack);
|
|---|
| 505 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 506 | pVM->tm.s.u32VirtualSyncScheduleSlack = 100000; /* 0.100ms (ASSUMES virtual time is nanoseconds) */
|
|---|
| 507 | else if (RT_FAILURE(rc))
|
|---|
| 508 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 509 | N_("Configuration error: Failed to querying 32-bit integer value \"ScheduleSlack\""));
|
|---|
| 510 |
|
|---|
| 511 | /** @cfgm{/TM/CatchUpStopThreshold, uint64_t, ns, 0, UINT64_MAX, 500000}
|
|---|
| 512 | * When to stop a catch-up, considering it successful. */
|
|---|
| 513 | rc = CFGMR3QueryU64(pCfgHandle, "CatchUpStopThreshold", &pVM->tm.s.u64VirtualSyncCatchUpStopThreshold);
|
|---|
| 514 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 515 | pVM->tm.s.u64VirtualSyncCatchUpStopThreshold = 500000; /* 0.5ms */
|
|---|
| 516 | else if (RT_FAILURE(rc))
|
|---|
| 517 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 518 | N_("Configuration error: Failed to querying 64-bit integer value \"CatchUpStopThreshold\""));
|
|---|
| 519 |
|
|---|
| 520 | /** @cfgm{/TM/CatchUpGiveUpThreshold, uint64_t, ns, 0, UINT64_MAX, 60000000000}
|
|---|
| 521 | * When to give up a catch-up attempt. */
|
|---|
| 522 | rc = CFGMR3QueryU64(pCfgHandle, "CatchUpGiveUpThreshold", &pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold);
|
|---|
| 523 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 524 | pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold = UINT64_C(60000000000); /* 60 sec */
|
|---|
| 525 | else if (RT_FAILURE(rc))
|
|---|
| 526 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 527 | N_("Configuration error: Failed to querying 64-bit integer value \"CatchUpGiveUpThreshold\""));
|
|---|
| 528 |
|
|---|
| 529 |
|
|---|
| 530 | /** @cfgm{/TM/CatchUpPrecentage[0..9], uint32_t, %, 1, 2000, various}
|
|---|
| 531 | * The catch-up percent for a given period. */
|
|---|
| 532 | /** @cfgm{/TM/CatchUpStartThreshold[0..9], uint64_t, ns, 0, UINT64_MAX}
|
|---|
| 533 | * The catch-up period threshold, or if you like, when a period starts. */
|
|---|
| 534 | #define TM_CFG_PERIOD(iPeriod, DefStart, DefPct) \
|
|---|
| 535 | do \
|
|---|
| 536 | { \
|
|---|
| 537 | uint64_t u64; \
|
|---|
| 538 | rc = CFGMR3QueryU64(pCfgHandle, "CatchUpStartThreshold" #iPeriod, &u64); \
|
|---|
| 539 | if (rc == VERR_CFGM_VALUE_NOT_FOUND) \
|
|---|
| 540 | u64 = UINT64_C(DefStart); \
|
|---|
| 541 | else if (RT_FAILURE(rc)) \
|
|---|
| 542 | return VMSetError(pVM, rc, RT_SRC_POS, N_("Configuration error: Failed to querying 64-bit integer value \"CatchUpThreshold" #iPeriod "\"")); \
|
|---|
| 543 | if ( (iPeriod > 0 && u64 <= pVM->tm.s.aVirtualSyncCatchUpPeriods[iPeriod - 1].u64Start) \
|
|---|
| 544 | || u64 >= pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold) \
|
|---|
| 545 | return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS, N_("Configuration error: Invalid start of period #" #iPeriod ": %'RU64"), u64); \
|
|---|
| 546 | pVM->tm.s.aVirtualSyncCatchUpPeriods[iPeriod].u64Start = u64; \
|
|---|
| 547 | rc = CFGMR3QueryU32(pCfgHandle, "CatchUpPrecentage" #iPeriod, &pVM->tm.s.aVirtualSyncCatchUpPeriods[iPeriod].u32Percentage); \
|
|---|
| 548 | if (rc == VERR_CFGM_VALUE_NOT_FOUND) \
|
|---|
| 549 | pVM->tm.s.aVirtualSyncCatchUpPeriods[iPeriod].u32Percentage = (DefPct); \
|
|---|
| 550 | else if (RT_FAILURE(rc)) \
|
|---|
| 551 | return VMSetError(pVM, rc, RT_SRC_POS, N_("Configuration error: Failed to querying 32-bit integer value \"CatchUpPrecentage" #iPeriod "\"")); \
|
|---|
| 552 | } while (0)
|
|---|
| 553 | /* This needs more tuning. Not sure if we really need so many period and be so gentle. */
|
|---|
| 554 | TM_CFG_PERIOD(0, 750000, 5); /* 0.75ms at 1.05x */
|
|---|
| 555 | TM_CFG_PERIOD(1, 1500000, 10); /* 1.50ms at 1.10x */
|
|---|
| 556 | TM_CFG_PERIOD(2, 8000000, 25); /* 8ms at 1.25x */
|
|---|
| 557 | TM_CFG_PERIOD(3, 30000000, 50); /* 30ms at 1.50x */
|
|---|
| 558 | TM_CFG_PERIOD(4, 75000000, 75); /* 75ms at 1.75x */
|
|---|
| 559 | TM_CFG_PERIOD(5, 175000000, 100); /* 175ms at 2x */
|
|---|
| 560 | TM_CFG_PERIOD(6, 500000000, 200); /* 500ms at 3x */
|
|---|
| 561 | TM_CFG_PERIOD(7, 3000000000, 300); /* 3s at 4x */
|
|---|
| 562 | TM_CFG_PERIOD(8,30000000000, 400); /* 30s at 5x */
|
|---|
| 563 | TM_CFG_PERIOD(9,55000000000, 500); /* 55s at 6x */
|
|---|
| 564 | AssertCompile(RT_ELEMENTS(pVM->tm.s.aVirtualSyncCatchUpPeriods) == 10);
|
|---|
| 565 | #undef TM_CFG_PERIOD
|
|---|
| 566 |
|
|---|
| 567 | /*
|
|---|
| 568 | * Configure real world time (UTC).
|
|---|
| 569 | */
|
|---|
| 570 | /** @cfgm{/TM/UTCOffset, int64_t, ns, INT64_MIN, INT64_MAX, 0}
|
|---|
| 571 | * The UTC offset. This is used to put the guest back or forwards in time. */
|
|---|
| 572 | rc = CFGMR3QueryS64(pCfgHandle, "UTCOffset", &pVM->tm.s.offUTC);
|
|---|
| 573 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 574 | pVM->tm.s.offUTC = 0; /* ns */
|
|---|
| 575 | else if (RT_FAILURE(rc))
|
|---|
| 576 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 577 | N_("Configuration error: Failed to querying 64-bit integer value \"UTCOffset\""));
|
|---|
| 578 |
|
|---|
| 579 | /** @cfgm{/TM/UTCTouchFileOnJump, string, none}
|
|---|
| 580 | * File to be written to everytime the host time jumps. */
|
|---|
| 581 | rc = CFGMR3QueryStringAlloc(pCfgHandle, "UTCTouchFileOnJump", &pVM->tm.s.pszUtcTouchFileOnJump);
|
|---|
| 582 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 583 | pVM->tm.s.pszUtcTouchFileOnJump = NULL;
|
|---|
| 584 | else if (RT_FAILURE(rc))
|
|---|
| 585 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 586 | N_("Configuration error: Failed to querying string value \"UTCTouchFileOnJump\""));
|
|---|
| 587 |
|
|---|
| 588 | /*
|
|---|
| 589 | * Setup the warp drive.
|
|---|
| 590 | */
|
|---|
| 591 | /** @cfgm{/TM/WarpDrivePercentage, uint32_t, %, 0, 20000, 100}
|
|---|
| 592 | * The warp drive percentage, 100% is normal speed. This is used to speed up
|
|---|
| 593 | * or slow down the virtual clock, which can be useful for fast forwarding
|
|---|
| 594 | * borring periods during tests. */
|
|---|
| 595 | rc = CFGMR3QueryU32(pCfgHandle, "WarpDrivePercentage", &pVM->tm.s.u32VirtualWarpDrivePercentage);
|
|---|
| 596 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 597 | rc = CFGMR3QueryU32(CFGMR3GetRoot(pVM), "WarpDrivePercentage", &pVM->tm.s.u32VirtualWarpDrivePercentage); /* legacy */
|
|---|
| 598 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 599 | pVM->tm.s.u32VirtualWarpDrivePercentage = 100;
|
|---|
| 600 | else if (RT_FAILURE(rc))
|
|---|
| 601 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 602 | N_("Configuration error: Failed to querying uint32_t value \"WarpDrivePercent\""));
|
|---|
| 603 | else if ( pVM->tm.s.u32VirtualWarpDrivePercentage < 2
|
|---|
| 604 | || pVM->tm.s.u32VirtualWarpDrivePercentage > 20000)
|
|---|
| 605 | return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS,
|
|---|
| 606 | N_("Configuration error: \"WarpDrivePercent\" = %RI32 is not in the range 2..20000"),
|
|---|
| 607 | pVM->tm.s.u32VirtualWarpDrivePercentage);
|
|---|
| 608 | pVM->tm.s.fVirtualWarpDrive = pVM->tm.s.u32VirtualWarpDrivePercentage != 100;
|
|---|
| 609 | if (pVM->tm.s.fVirtualWarpDrive)
|
|---|
| 610 | {
|
|---|
| 611 | if (pVM->tm.s.enmTSCMode == TMTSCMODE_NATIVE_API)
|
|---|
| 612 | LogRel(("TM: Warp-drive active, escept for TSC which is in NEM mode. u32VirtualWarpDrivePercentage=%RI32\n",
|
|---|
| 613 | pVM->tm.s.u32VirtualWarpDrivePercentage));
|
|---|
| 614 | else
|
|---|
| 615 | {
|
|---|
| 616 | pVM->tm.s.enmTSCMode = TMTSCMODE_VIRT_TSC_EMULATED;
|
|---|
| 617 | LogRel(("TM: Warp-drive active. u32VirtualWarpDrivePercentage=%RI32\n", pVM->tm.s.u32VirtualWarpDrivePercentage));
|
|---|
| 618 | }
|
|---|
| 619 | }
|
|---|
| 620 |
|
|---|
| 621 | /*
|
|---|
| 622 | * Gather the Host Hz configuration values.
|
|---|
| 623 | */
|
|---|
| 624 | rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzMax", &pVM->tm.s.cHostHzMax, 20000);
|
|---|
| 625 | if (RT_FAILURE(rc))
|
|---|
| 626 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 627 | N_("Configuration error: Failed to querying uint32_t value \"HostHzMax\""));
|
|---|
| 628 |
|
|---|
| 629 | rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorTimerCpu", &pVM->tm.s.cPctHostHzFudgeFactorTimerCpu, 111);
|
|---|
| 630 | if (RT_FAILURE(rc))
|
|---|
| 631 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 632 | N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorTimerCpu\""));
|
|---|
| 633 |
|
|---|
| 634 | rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorOtherCpu", &pVM->tm.s.cPctHostHzFudgeFactorOtherCpu, 110);
|
|---|
| 635 | if (RT_FAILURE(rc))
|
|---|
| 636 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 637 | N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorOtherCpu\""));
|
|---|
| 638 |
|
|---|
| 639 | rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorCatchUp100", &pVM->tm.s.cPctHostHzFudgeFactorCatchUp100, 300);
|
|---|
| 640 | if (RT_FAILURE(rc))
|
|---|
| 641 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 642 | N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorCatchUp100\""));
|
|---|
| 643 |
|
|---|
| 644 | rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorCatchUp200", &pVM->tm.s.cPctHostHzFudgeFactorCatchUp200, 250);
|
|---|
| 645 | if (RT_FAILURE(rc))
|
|---|
| 646 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 647 | N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorCatchUp200\""));
|
|---|
| 648 |
|
|---|
| 649 | rc = CFGMR3QueryU32Def(pCfgHandle, "HostHzFudgeFactorCatchUp400", &pVM->tm.s.cPctHostHzFudgeFactorCatchUp400, 200);
|
|---|
| 650 | if (RT_FAILURE(rc))
|
|---|
| 651 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 652 | N_("Configuration error: Failed to querying uint32_t value \"HostHzFudgeFactorCatchUp400\""));
|
|---|
| 653 |
|
|---|
| 654 | /*
|
|---|
| 655 | * Finally, setup and report.
|
|---|
| 656 | */
|
|---|
| 657 | pVM->tm.s.enmOriginalTSCMode = pVM->tm.s.enmTSCMode;
|
|---|
| 658 | #if !defined(VBOX_VMM_TARGET_ARMV8)
|
|---|
| 659 | CPUMR3SetCR4Feature(pVM, X86_CR4_TSD, ~X86_CR4_TSD);
|
|---|
| 660 | #endif
|
|---|
| 661 | LogRel(("TM: cTSCTicksPerSecond=%'RU64 (%#RX64) enmTSCMode=%d (%s) TSCMultiplier=%u\n"
|
|---|
| 662 | "TM: cTSCTicksPerSecondHost=%'RU64 (%#RX64)\n"
|
|---|
| 663 | "TM: TSCTiedToExecution=%RTbool TSCNotTiedToHalt=%RTbool\n",
|
|---|
| 664 | pVM->tm.s.cTSCTicksPerSecond, pVM->tm.s.cTSCTicksPerSecond, pVM->tm.s.enmTSCMode, tmR3GetTSCModeName(pVM), pVM->tm.s.u8TSCMultiplier,
|
|---|
| 665 | pVM->tm.s.cTSCTicksPerSecondHost, pVM->tm.s.cTSCTicksPerSecondHost,
|
|---|
| 666 | pVM->tm.s.fTSCTiedToExecution, pVM->tm.s.fTSCNotTiedToHalt));
|
|---|
| 667 |
|
|---|
| 668 | /*
|
|---|
| 669 | * Start the timer (guard against REM not yielding).
|
|---|
| 670 | */
|
|---|
| 671 | /** @cfgm{/TM/TimerMillies, uint32_t, ms, 1, 1000, 10}
|
|---|
| 672 | * The watchdog timer interval. */
|
|---|
| 673 | uint32_t u32Millies;
|
|---|
| 674 | rc = CFGMR3QueryU32(pCfgHandle, "TimerMillies", &u32Millies);
|
|---|
| 675 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
|---|
| 676 | u32Millies = VM_IS_HM_ENABLED(pVM) ? 1000 : 10;
|
|---|
| 677 | else if (RT_FAILURE(rc))
|
|---|
| 678 | return VMSetError(pVM, rc, RT_SRC_POS,
|
|---|
| 679 | N_("Configuration error: Failed to query uint32_t value \"TimerMillies\""));
|
|---|
| 680 | rc = RTTimerCreate(&pVM->tm.s.pTimer, u32Millies, tmR3TimerCallback, pVM);
|
|---|
| 681 | if (RT_FAILURE(rc))
|
|---|
| 682 | {
|
|---|
| 683 | AssertMsgFailed(("Failed to create timer, u32Millies=%d rc=%Rrc.\n", u32Millies, rc));
|
|---|
| 684 | return rc;
|
|---|
| 685 | }
|
|---|
| 686 | Log(("TM: Created timer %p firing every %d milliseconds\n", pVM->tm.s.pTimer, u32Millies));
|
|---|
| 687 | pVM->tm.s.u32TimerMillies = u32Millies;
|
|---|
| 688 |
|
|---|
| 689 | /*
|
|---|
| 690 | * Register saved state.
|
|---|
| 691 | */
|
|---|
| 692 | rc = SSMR3RegisterInternal(pVM, "tm", 1, TM_SAVED_STATE_VERSION, sizeof(uint64_t) * 8,
|
|---|
| 693 | NULL, NULL, NULL,
|
|---|
| 694 | NULL, tmR3Save, NULL,
|
|---|
| 695 | NULL, tmR3Load, NULL);
|
|---|
| 696 | if (RT_FAILURE(rc))
|
|---|
| 697 | return rc;
|
|---|
| 698 |
|
|---|
| 699 | /*
|
|---|
| 700 | * Register statistics.
|
|---|
| 701 | */
|
|---|
| 702 | STAM_REL_REG_USED(pVM,(void*)&pVM->tm.s.VirtualGetRawData.c1nsSteps,STAMTYPE_U32, "/TM/R3/1nsSteps", STAMUNIT_OCCURENCES, "Virtual time 1ns steps (due to TSC / GIP variations).");
|
|---|
| 703 | STAM_REL_REG_USED(pVM,(void*)&pVM->tm.s.VirtualGetRawData.cBadPrev, STAMTYPE_U32, "/TM/R3/cBadPrev", STAMUNIT_OCCURENCES, "Times the previous virtual time was considered erratic (shouldn't ever happen).");
|
|---|
| 704 | #if 0 /** @todo retreive from ring-0 */
|
|---|
| 705 | 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).");
|
|---|
| 706 | 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).");
|
|---|
| 707 | #endif
|
|---|
| 708 | 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)");
|
|---|
| 709 | 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.");
|
|---|
| 710 | STAM_REL_REG( pVM,(void*)&pVM->tm.s.HzHint.s.uMax, STAMTYPE_U32, "/TM/MaxHzHint", STAMUNIT_HZ, "Max guest timer frequency hint.");
|
|---|
| 711 | for (uint32_t i = 0; i < RT_ELEMENTS(pVM->tm.s.aTimerQueues); i++)
|
|---|
| 712 | {
|
|---|
| 713 | rc = STAMR3RegisterF(pVM, (void *)&pVM->tm.s.aTimerQueues[i].uMaxHzHint, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_HZ,
|
|---|
| 714 | "", "/TM/MaxHzHint/%s", pVM->tm.s.aTimerQueues[i].szName);
|
|---|
| 715 | AssertRC(rc);
|
|---|
| 716 | }
|
|---|
| 717 |
|
|---|
| 718 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 719 | STAM_REG_USED(pVM,(void *)&pVM->tm.s.VirtualGetRawData.cExpired, STAMTYPE_U32, "/TM/R3/cExpired", STAMUNIT_OCCURENCES, "Times the TSC interval expired (overlaps 1ns steps).");
|
|---|
| 720 | STAM_REG_USED(pVM,(void *)&pVM->tm.s.VirtualGetRawData.cUpdateRaces,STAMTYPE_U32, "/TM/R3/cUpdateRaces", STAMUNIT_OCCURENCES, "Thread races when updating the previous timestamp.");
|
|---|
| 721 | # if 0 /** @todo retreive from ring-0 */
|
|---|
| 722 | 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).");
|
|---|
| 723 | STAM_REG_USED(pVM,(void *)&pVM->tm.s.VirtualGetRawDataR0.cUpdateRaces,STAMTYPE_U32, "/TM/R0/cUpdateRaces", STAMUNIT_OCCURENCES, "Thread races when updating the previous timestamp.");
|
|---|
| 724 | # endif
|
|---|
| 725 | STAM_REG(pVM, &pVM->tm.s.StatDoQueues, STAMTYPE_PROFILE, "/TM/DoQueues", STAMUNIT_TICKS_PER_CALL, "Profiling timer TMR3TimerQueuesDo.");
|
|---|
| 726 | STAM_REG(pVM, &pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL].StatDo, STAMTYPE_PROFILE, "/TM/DoQueues/Virtual", STAMUNIT_TICKS_PER_CALL, "Time spent on the virtual clock queue.");
|
|---|
| 727 | STAM_REG(pVM, &pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL_SYNC].StatDo,STAMTYPE_PROFILE,"/TM/DoQueues/VirtualSync", STAMUNIT_TICKS_PER_CALL, "Time spent on the virtual sync clock queue.");
|
|---|
| 728 | STAM_REG(pVM, &pVM->tm.s.aTimerQueues[TMCLOCK_REAL].StatDo, STAMTYPE_PROFILE, "/TM/DoQueues/Real", STAMUNIT_TICKS_PER_CALL, "Time spent on the real clock queue.");
|
|---|
| 729 |
|
|---|
| 730 | STAM_REG(pVM, &pVM->tm.s.StatPoll, STAMTYPE_COUNTER, "/TM/Poll", STAMUNIT_OCCURENCES, "TMTimerPoll calls.");
|
|---|
| 731 | STAM_REG(pVM, &pVM->tm.s.StatPollAlreadySet, STAMTYPE_COUNTER, "/TM/Poll/AlreadySet", STAMUNIT_OCCURENCES, "TMTimerPoll calls where the FF was already set.");
|
|---|
| 732 | 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.");
|
|---|
| 733 | STAM_REG(pVM, &pVM->tm.s.StatPollMiss, STAMTYPE_COUNTER, "/TM/Poll/Miss", STAMUNIT_OCCURENCES, "TMTimerPoll calls where nothing had expired.");
|
|---|
| 734 | STAM_REG(pVM, &pVM->tm.s.StatPollRunning, STAMTYPE_COUNTER, "/TM/Poll/Running", STAMUNIT_OCCURENCES, "TMTimerPoll calls where the queues were being run.");
|
|---|
| 735 | STAM_REG(pVM, &pVM->tm.s.StatPollSimple, STAMTYPE_COUNTER, "/TM/Poll/Simple", STAMUNIT_OCCURENCES, "TMTimerPoll calls where we could take the simple path.");
|
|---|
| 736 | 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.");
|
|---|
| 737 | 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.");
|
|---|
| 738 |
|
|---|
| 739 | STAM_REG(pVM, &pVM->tm.s.StatPostponedR3, STAMTYPE_COUNTER, "/TM/PostponedR3", STAMUNIT_OCCURENCES, "Postponed due to unschedulable state, in ring-3.");
|
|---|
| 740 | STAM_REG(pVM, &pVM->tm.s.StatPostponedRZ, STAMTYPE_COUNTER, "/TM/PostponedRZ", STAMUNIT_OCCURENCES, "Postponed due to unschedulable state, in ring-0 / RC.");
|
|---|
| 741 |
|
|---|
| 742 | 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.");
|
|---|
| 743 | 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.");
|
|---|
| 744 | 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.");
|
|---|
| 745 |
|
|---|
| 746 | STAM_REG(pVM, &pVM->tm.s.StatTimerSet, STAMTYPE_COUNTER, "/TM/TimerSet", STAMUNIT_OCCURENCES, "Calls, except virtual sync timers");
|
|---|
| 747 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetOpt, STAMTYPE_COUNTER, "/TM/TimerSet/Opt", STAMUNIT_OCCURENCES, "Optimized path taken.");
|
|---|
| 748 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetR3, STAMTYPE_PROFILE, "/TM/TimerSet/R3", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerSet calls made in ring-3.");
|
|---|
| 749 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRZ, STAMTYPE_PROFILE, "/TM/TimerSet/RZ", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerSet calls made in ring-0 / RC.");
|
|---|
| 750 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStActive, STAMTYPE_COUNTER, "/TM/TimerSet/StActive", STAMUNIT_OCCURENCES, "ACTIVE");
|
|---|
| 751 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStExpDeliver, STAMTYPE_COUNTER, "/TM/TimerSet/StExpDeliver", STAMUNIT_OCCURENCES, "EXPIRED_DELIVER");
|
|---|
| 752 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStOther, STAMTYPE_COUNTER, "/TM/TimerSet/StOther", STAMUNIT_OCCURENCES, "Other states");
|
|---|
| 753 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStPendStop, STAMTYPE_COUNTER, "/TM/TimerSet/StPendStop", STAMUNIT_OCCURENCES, "PENDING_STOP");
|
|---|
| 754 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStPendStopSched, STAMTYPE_COUNTER, "/TM/TimerSet/StPendStopSched", STAMUNIT_OCCURENCES, "PENDING_STOP_SCHEDULE");
|
|---|
| 755 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStPendSched, STAMTYPE_COUNTER, "/TM/TimerSet/StPendSched", STAMUNIT_OCCURENCES, "PENDING_SCHEDULE");
|
|---|
| 756 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStPendResched, STAMTYPE_COUNTER, "/TM/TimerSet/StPendResched", STAMUNIT_OCCURENCES, "PENDING_RESCHEDULE");
|
|---|
| 757 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetStStopped, STAMTYPE_COUNTER, "/TM/TimerSet/StStopped", STAMUNIT_OCCURENCES, "STOPPED");
|
|---|
| 758 |
|
|---|
| 759 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetVs, STAMTYPE_COUNTER, "/TM/TimerSetVs", STAMUNIT_OCCURENCES, "TMTimerSet calls on virtual sync timers");
|
|---|
| 760 | 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.");
|
|---|
| 761 | 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.");
|
|---|
| 762 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetVsStActive, STAMTYPE_COUNTER, "/TM/TimerSetVs/StActive", STAMUNIT_OCCURENCES, "ACTIVE");
|
|---|
| 763 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetVsStExpDeliver, STAMTYPE_COUNTER, "/TM/TimerSetVs/StExpDeliver", STAMUNIT_OCCURENCES, "EXPIRED_DELIVER");
|
|---|
| 764 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetVsStStopped, STAMTYPE_COUNTER, "/TM/TimerSetVs/StStopped", STAMUNIT_OCCURENCES, "STOPPED");
|
|---|
| 765 |
|
|---|
| 766 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelative, STAMTYPE_COUNTER, "/TM/TimerSetRelative", STAMUNIT_OCCURENCES, "Calls, except virtual sync timers");
|
|---|
| 767 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeOpt, STAMTYPE_COUNTER, "/TM/TimerSetRelative/Opt", STAMUNIT_OCCURENCES, "Optimized path taken.");
|
|---|
| 768 | 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).");
|
|---|
| 769 | 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).");
|
|---|
| 770 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStActive, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StActive", STAMUNIT_OCCURENCES, "ACTIVE");
|
|---|
| 771 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStExpDeliver, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StExpDeliver", STAMUNIT_OCCURENCES, "EXPIRED_DELIVER");
|
|---|
| 772 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStOther, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StOther", STAMUNIT_OCCURENCES, "Other states");
|
|---|
| 773 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStPendStop, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StPendStop", STAMUNIT_OCCURENCES, "PENDING_STOP");
|
|---|
| 774 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStPendStopSched, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StPendStopSched",STAMUNIT_OCCURENCES, "PENDING_STOP_SCHEDULE");
|
|---|
| 775 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStPendSched, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StPendSched", STAMUNIT_OCCURENCES, "PENDING_SCHEDULE");
|
|---|
| 776 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStPendResched, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StPendResched", STAMUNIT_OCCURENCES, "PENDING_RESCHEDULE");
|
|---|
| 777 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeStStopped, STAMTYPE_COUNTER, "/TM/TimerSetRelative/StStopped", STAMUNIT_OCCURENCES, "STOPPED");
|
|---|
| 778 |
|
|---|
| 779 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVs, STAMTYPE_COUNTER, "/TM/TimerSetRelativeVs", STAMUNIT_OCCURENCES, "TMTimerSetRelative calls on virtual sync timers");
|
|---|
| 780 | 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.");
|
|---|
| 781 | 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.");
|
|---|
| 782 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVsStActive, STAMTYPE_COUNTER, "/TM/TimerSetRelativeVs/StActive", STAMUNIT_OCCURENCES, "ACTIVE");
|
|---|
| 783 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVsStExpDeliver, STAMTYPE_COUNTER, "/TM/TimerSetRelativeVs/StExpDeliver", STAMUNIT_OCCURENCES, "EXPIRED_DELIVER");
|
|---|
| 784 | STAM_REG(pVM, &pVM->tm.s.StatTimerSetRelativeVsStStopped, STAMTYPE_COUNTER, "/TM/TimerSetRelativeVs/StStopped", STAMUNIT_OCCURENCES, "STOPPED");
|
|---|
| 785 |
|
|---|
| 786 | STAM_REG(pVM, &pVM->tm.s.StatTimerStopR3, STAMTYPE_PROFILE, "/TM/TimerStopR3", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerStop calls made in ring-3.");
|
|---|
| 787 | STAM_REG(pVM, &pVM->tm.s.StatTimerStopRZ, STAMTYPE_PROFILE, "/TM/TimerStopRZ", STAMUNIT_TICKS_PER_CALL, "Profiling TMTimerStop calls made in ring-0 / RC.");
|
|---|
| 788 |
|
|---|
| 789 | 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.");
|
|---|
| 790 | STAM_REG(pVM, &pVM->tm.s.StatVirtualGetSetFF, STAMTYPE_COUNTER, "/TM/VirtualGetSetFF", STAMUNIT_OCCURENCES, "Times we set the FF when calling TMTimerGet.");
|
|---|
| 791 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGet, STAMTYPE_COUNTER, "/TM/VirtualSyncGet", STAMUNIT_OCCURENCES, "The number of times tmVirtualSyncGetEx was called.");
|
|---|
| 792 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetAdjLast, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/AdjLast", STAMUNIT_OCCURENCES, "Times we've adjusted against the last returned time stamp .");
|
|---|
| 793 | 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.");
|
|---|
| 794 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetExpired, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/Expired", STAMUNIT_OCCURENCES, "Times tmVirtualSyncGetEx encountered an expired timer stopping the clock.");
|
|---|
| 795 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetLocked, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/Locked", STAMUNIT_OCCURENCES, "Times we successfully acquired the lock in tmVirtualSyncGetEx.");
|
|---|
| 796 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetLockless, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/Lockless", STAMUNIT_OCCURENCES, "Times tmVirtualSyncGetEx returned without needing to take the lock.");
|
|---|
| 797 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGetSetFF, STAMTYPE_COUNTER, "/TM/VirtualSyncGet/SetFF", STAMUNIT_OCCURENCES, "Times we set the FF when calling tmVirtualSyncGetEx.");
|
|---|
| 798 | STAM_REG(pVM, &pVM->tm.s.StatVirtualPause, STAMTYPE_COUNTER, "/TM/VirtualPause", STAMUNIT_OCCURENCES, "The number of times TMR3TimerPause was called.");
|
|---|
| 799 | STAM_REG(pVM, &pVM->tm.s.StatVirtualResume, STAMTYPE_COUNTER, "/TM/VirtualResume", STAMUNIT_OCCURENCES, "The number of times TMR3TimerResume was called.");
|
|---|
| 800 |
|
|---|
| 801 | STAM_REG(pVM, &pVM->tm.s.StatTimerCallbackSetFF, STAMTYPE_COUNTER, "/TM/CallbackSetFF", STAMUNIT_OCCURENCES, "The number of times the timer callback set FF.");
|
|---|
| 802 | STAM_REG(pVM, &pVM->tm.s.StatTimerCallback, STAMTYPE_COUNTER, "/TM/Callback", STAMUNIT_OCCURENCES, "The number of times the timer callback is invoked.");
|
|---|
| 803 |
|
|---|
| 804 | STAM_REG(pVM, &pVM->tm.s.StatTSCCatchupLE010, STAMTYPE_COUNTER, "/TM/TSC/Intercept/CatchupLE010", STAMUNIT_OCCURENCES, "In catch-up mode, 10% or lower.");
|
|---|
| 805 | STAM_REG(pVM, &pVM->tm.s.StatTSCCatchupLE025, STAMTYPE_COUNTER, "/TM/TSC/Intercept/CatchupLE025", STAMUNIT_OCCURENCES, "In catch-up mode, 25%-11%.");
|
|---|
| 806 | STAM_REG(pVM, &pVM->tm.s.StatTSCCatchupLE100, STAMTYPE_COUNTER, "/TM/TSC/Intercept/CatchupLE100", STAMUNIT_OCCURENCES, "In catch-up mode, 100%-26%.");
|
|---|
| 807 | STAM_REG(pVM, &pVM->tm.s.StatTSCCatchupOther, STAMTYPE_COUNTER, "/TM/TSC/Intercept/CatchupOther", STAMUNIT_OCCURENCES, "In catch-up mode, > 100%.");
|
|---|
| 808 | 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.");
|
|---|
| 809 | STAM_REG(pVM, &pVM->tm.s.StatTSCNotTicking, STAMTYPE_COUNTER, "/TM/TSC/Intercept/NotTicking", STAMUNIT_OCCURENCES, "TSC is not ticking.");
|
|---|
| 810 | STAM_REG(pVM, &pVM->tm.s.StatTSCSyncNotTicking, STAMTYPE_COUNTER, "/TM/TSC/Intercept/SyncNotTicking", STAMUNIT_OCCURENCES, "VirtualSync isn't ticking.");
|
|---|
| 811 | STAM_REG(pVM, &pVM->tm.s.StatTSCWarp, STAMTYPE_COUNTER, "/TM/TSC/Intercept/Warp", STAMUNIT_OCCURENCES, "Warpdrive is active.");
|
|---|
| 812 | STAM_REG(pVM, &pVM->tm.s.StatTSCSet, STAMTYPE_COUNTER, "/TM/TSC/Sets", STAMUNIT_OCCURENCES, "Calls to TMCpuTickSet.");
|
|---|
| 813 | STAM_REG(pVM, &pVM->tm.s.StatTSCUnderflow, STAMTYPE_COUNTER, "/TM/TSC/Underflow", STAMUNIT_OCCURENCES, "TSC underflow; corrected with last seen value .");
|
|---|
| 814 | STAM_REG(pVM, &pVM->tm.s.StatVirtualPause, STAMTYPE_COUNTER, "/TM/TSC/Pause", STAMUNIT_OCCURENCES, "The number of times the TSC was paused.");
|
|---|
| 815 | STAM_REG(pVM, &pVM->tm.s.StatVirtualResume, STAMTYPE_COUNTER, "/TM/TSC/Resume", STAMUNIT_OCCURENCES, "The number of times the TSC was resumed.");
|
|---|
| 816 | #endif /* VBOX_WITH_STATISTICS */
|
|---|
| 817 |
|
|---|
| 818 | for (VMCPUID i = 0; i < pVM->cCpus; i++)
|
|---|
| 819 | {
|
|---|
| 820 | PVMCPU pVCpu = pVM->apCpusR3[i];
|
|---|
| 821 | STAMR3RegisterF(pVM, &pVCpu->tm.s.offTSCRawSrc, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS, "TSC offset relative the raw source", "/TM/TSC/offCPU%u", i);
|
|---|
| 822 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 823 | # if defined(VBOX_WITH_STATISTICS) || defined(VBOX_WITH_NS_ACCOUNTING_STATS)
|
|---|
| 824 | STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsTotal, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Resettable: Total CPU run time.", "/TM/CPU/%02u", i);
|
|---|
| 825 | STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsExecuting, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent executing guest code.", "/TM/CPU/%02u/PrfExecuting", i);
|
|---|
| 826 | STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsExecLong, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent executing guest code - long hauls.", "/TM/CPU/%02u/PrfExecLong", i);
|
|---|
| 827 | STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsExecShort, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent executing guest code - short stretches.", "/TM/CPU/%02u/PrfExecShort", i);
|
|---|
| 828 | STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsExecTiny, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent executing guest code - tiny bits.", "/TM/CPU/%02u/PrfExecTiny", i);
|
|---|
| 829 | STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsHalted, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent halted.", "/TM/CPU/%02u/PrfHalted", i);
|
|---|
| 830 | STAMR3RegisterF(pVM, &pVCpu->tm.s.StatNsOther, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_OCCURENCE, "Resettable: Time spent in the VMM or preempted.", "/TM/CPU/%02u/PrfOther", i);
|
|---|
| 831 | # endif
|
|---|
| 832 | STAMR3RegisterF(pVM, &pVCpu->tm.s.cNsTotalStat, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Total CPU run time.", "/TM/CPU/%02u/cNsTotal", i);
|
|---|
| 833 | STAMR3RegisterF(pVM, &pVCpu->tm.s.cNsExecuting, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Time spent executing guest code.", "/TM/CPU/%02u/cNsExecuting", i);
|
|---|
| 834 | STAMR3RegisterF(pVM, &pVCpu->tm.s.cNsHalted, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Time spent halted.", "/TM/CPU/%02u/cNsHalted", i);
|
|---|
| 835 | STAMR3RegisterF(pVM, &pVCpu->tm.s.cNsOtherStat, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_NS, "Time spent in the VMM or preempted.", "/TM/CPU/%02u/cNsOther", i);
|
|---|
| 836 | STAMR3RegisterF(pVM, &pVCpu->tm.s.cPeriodsExecuting, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Times executed guest code.", "/TM/CPU/%02u/cPeriodsExecuting", i);
|
|---|
| 837 | STAMR3RegisterF(pVM, &pVCpu->tm.s.cPeriodsHalted, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Times halted.", "/TM/CPU/%02u/cPeriodsHalted", i);
|
|---|
| 838 | STAMR3RegisterF(pVM, &pVCpu->tm.s.CpuLoad.cPctExecuting, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent executing guest code recently.", "/TM/CPU/%02u/pctExecuting", i);
|
|---|
| 839 | STAMR3RegisterF(pVM, &pVCpu->tm.s.CpuLoad.cPctHalted, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent halted recently.", "/TM/CPU/%02u/pctHalted", i);
|
|---|
| 840 | STAMR3RegisterF(pVM, &pVCpu->tm.s.CpuLoad.cPctOther, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent in the VMM or preempted recently.", "/TM/CPU/%02u/pctOther", i);
|
|---|
| 841 | #endif
|
|---|
| 842 | }
|
|---|
| 843 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 844 | STAMR3RegisterF(pVM, &pVM->tm.s.CpuLoad.cPctExecuting, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent executing guest code recently.", "/TM/CPU/pctExecuting");
|
|---|
| 845 | STAMR3RegisterF(pVM, &pVM->tm.s.CpuLoad.cPctHalted, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent halted recently.", "/TM/CPU/pctHalted");
|
|---|
| 846 | STAMR3RegisterF(pVM, &pVM->tm.s.CpuLoad.cPctOther, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "Time spent in the VMM or preempted recently.", "/TM/CPU/pctOther");
|
|---|
| 847 | #endif
|
|---|
| 848 |
|
|---|
| 849 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 850 | 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.");
|
|---|
| 851 | STAM_REG(pVM, (void *)&pVM->tm.s.fVirtualSyncCatchUp, STAMTYPE_U8, "/TM/VirtualSync/CatchUpActive", STAMUNIT_NONE, "Catch-Up active indicator.");
|
|---|
| 852 | 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)");
|
|---|
| 853 | 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.");
|
|---|
| 854 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncGiveUp, STAMTYPE_COUNTER, "/TM/VirtualSync/GiveUp", STAMUNIT_OCCURENCES, "Times the catch-up was abandoned.");
|
|---|
| 855 | 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++.)");
|
|---|
| 856 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncRun, STAMTYPE_COUNTER, "/TM/VirtualSync/Run", STAMUNIT_OCCURENCES, "Times the virtual sync timer queue was considered.");
|
|---|
| 857 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncRunRestart, STAMTYPE_COUNTER, "/TM/VirtualSync/Run/Restarts", STAMUNIT_OCCURENCES, "Times the clock was restarted after a run.");
|
|---|
| 858 | 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.");
|
|---|
| 859 | STAM_REG(pVM, &pVM->tm.s.StatVirtualSyncRunStoppedAlready, STAMTYPE_COUNTER, "/TM/VirtualSync/Run/StoppedAlready", STAMUNIT_OCCURENCES, "Times the clock was already stopped elsewhere (TMVirtualSyncGet).");
|
|---|
| 860 | 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.)");
|
|---|
| 861 | for (unsigned i = 0; i < RT_ELEMENTS(pVM->tm.s.aVirtualSyncCatchUpPeriods); i++)
|
|---|
| 862 | {
|
|---|
| 863 | STAMR3RegisterF(pVM, &pVM->tm.s.aVirtualSyncCatchUpPeriods[i].u32Percentage, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_PCT, "The catch-up percentage.", "/TM/VirtualSync/Periods/%u", i);
|
|---|
| 864 | STAMR3RegisterF(pVM, &pVM->tm.s.aStatVirtualSyncCatchupAdjust[i], STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Times adjusted to this period.", "/TM/VirtualSync/Periods/%u/Adjust", i);
|
|---|
| 865 | STAMR3RegisterF(pVM, &pVM->tm.s.aStatVirtualSyncCatchupInitial[i], STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Times started in this period.", "/TM/VirtualSync/Periods/%u/Initial", i);
|
|---|
| 866 | 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);
|
|---|
| 867 | }
|
|---|
| 868 | #endif /* VBOX_WITH_STATISTICS */
|
|---|
| 869 |
|
|---|
| 870 | /*
|
|---|
| 871 | * Register info handlers.
|
|---|
| 872 | */
|
|---|
| 873 | DBGFR3InfoRegisterInternalEx(pVM, "timers", "Dumps all timers. No arguments.", tmR3TimerInfo, DBGFINFO_FLAGS_RUN_ON_EMT);
|
|---|
| 874 | DBGFR3InfoRegisterInternalEx(pVM, "activetimers", "Dumps active all timers. No arguments.", tmR3TimerInfoActive, DBGFINFO_FLAGS_RUN_ON_EMT);
|
|---|
| 875 | DBGFR3InfoRegisterInternalEx(pVM, "clocks", "Display the time of the various clocks.", tmR3InfoClocks, DBGFINFO_FLAGS_RUN_ON_EMT);
|
|---|
| 876 | DBGFR3InfoRegisterInternalArgv(pVM, "cpuload", "Display the CPU load stats (--help for details).", tmR3InfoCpuLoad, 0);
|
|---|
| 877 |
|
|---|
| 878 | return VINF_SUCCESS;
|
|---|
| 879 | }
|
|---|
| 880 |
|
|---|
| 881 |
|
|---|
| 882 | /**
|
|---|
| 883 | * Checks if the host CPU has a fixed TSC frequency.
|
|---|
| 884 | *
|
|---|
| 885 | * @returns true if it has, false if it hasn't.
|
|---|
| 886 | *
|
|---|
| 887 | * @remarks This test doesn't bother with very old CPUs that don't do power
|
|---|
| 888 | * management or any other stuff that might influence the TSC rate.
|
|---|
| 889 | * This isn't currently relevant.
|
|---|
| 890 | */
|
|---|
| 891 | static bool tmR3HasFixedTSC(PVM pVM)
|
|---|
| 892 | {
|
|---|
| 893 | /*
|
|---|
| 894 | * ASSUME that if the GIP is in invariant TSC mode, it's because the CPU
|
|---|
| 895 | * actually has invariant TSC.
|
|---|
| 896 | *
|
|---|
| 897 | * In driverless mode we just assume sync TSC for now regardless of what
|
|---|
| 898 | * the case actually is.
|
|---|
| 899 | */
|
|---|
| 900 | PSUPGLOBALINFOPAGE const pGip = g_pSUPGlobalInfoPage;
|
|---|
| 901 | SUPGIPMODE const enmGipMode = pGip ? (SUPGIPMODE)pGip->u32Mode : SUPGIPMODE_INVARIANT_TSC;
|
|---|
| 902 | if (enmGipMode == SUPGIPMODE_INVARIANT_TSC)
|
|---|
| 903 | return true;
|
|---|
| 904 |
|
|---|
| 905 | #if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)
|
|---|
| 906 | /*
|
|---|
| 907 | * Go by features and model info from the CPUID instruction.
|
|---|
| 908 | */
|
|---|
| 909 | if (ASMHasCpuId())
|
|---|
| 910 | {
|
|---|
| 911 | uint32_t uEAX, uEBX, uECX, uEDX;
|
|---|
| 912 |
|
|---|
| 913 | /*
|
|---|
| 914 | * By feature. (Used to be AMD specific, intel seems to have picked it up.)
|
|---|
| 915 | */
|
|---|
| 916 | ASMCpuId(0x80000000, &uEAX, &uEBX, &uECX, &uEDX);
|
|---|
| 917 | if (uEAX >= 0x80000007 && RTX86IsValidExtRange(uEAX))
|
|---|
| 918 | {
|
|---|
| 919 | ASMCpuId(0x80000007, &uEAX, &uEBX, &uECX, &uEDX);
|
|---|
| 920 | if ( (uEDX & X86_CPUID_AMD_ADVPOWER_EDX_TSCINVAR) /* TscInvariant */
|
|---|
| 921 | && enmGipMode != SUPGIPMODE_ASYNC_TSC) /* No fixed tsc if the gip timer is in async mode. */
|
|---|
| 922 | return true;
|
|---|
| 923 | }
|
|---|
| 924 |
|
|---|
| 925 | /*
|
|---|
| 926 | * By model.
|
|---|
| 927 | */
|
|---|
| 928 | if (CPUMGetHostCpuVendor(pVM) == CPUMCPUVENDOR_AMD)
|
|---|
| 929 | {
|
|---|
| 930 | /*
|
|---|
| 931 | * AuthenticAMD - Check for APM support and that TscInvariant is set.
|
|---|
| 932 | *
|
|---|
| 933 | * This test isn't correct with respect to fixed/non-fixed TSC and
|
|---|
| 934 | * older models, but this isn't relevant since the result is currently
|
|---|
| 935 | * only used for making a decision on AMD-V models.
|
|---|
| 936 | */
|
|---|
| 937 | # if 0 /* Promoted to generic */
|
|---|
| 938 | ASMCpuId(0x80000000, &uEAX, &uEBX, &uECX, &uEDX);
|
|---|
| 939 | if (uEAX >= 0x80000007)
|
|---|
| 940 | {
|
|---|
| 941 | ASMCpuId(0x80000007, &uEAX, &uEBX, &uECX, &uEDX);
|
|---|
| 942 | if ( (uEDX & X86_CPUID_AMD_ADVPOWER_EDX_TSCINVAR) /* TscInvariant */
|
|---|
| 943 | && ( enmGipMode == SUPGIPMODE_SYNC_TSC /* No fixed tsc if the gip timer is in async mode. */
|
|---|
| 944 | || enmGipMode == SUPGIPMODE_INVARIANT_TSC))
|
|---|
| 945 | return true;
|
|---|
| 946 | }
|
|---|
| 947 | # endif
|
|---|
| 948 | }
|
|---|
| 949 | else if (CPUMGetHostCpuVendor(pVM) == CPUMCPUVENDOR_INTEL)
|
|---|
| 950 | {
|
|---|
| 951 | /*
|
|---|
| 952 | * GenuineIntel - Check the model number.
|
|---|
| 953 | *
|
|---|
| 954 | * This test is lacking in the same way and for the same reasons
|
|---|
| 955 | * as the AMD test above.
|
|---|
| 956 | */
|
|---|
| 957 | /** @todo use RTX86GetCpuFamily() and RTX86GetCpuModel() here. */
|
|---|
| 958 | ASMCpuId(1, &uEAX, &uEBX, &uECX, &uEDX);
|
|---|
| 959 | unsigned uModel = (uEAX >> 4) & 0x0f;
|
|---|
| 960 | unsigned uFamily = (uEAX >> 8) & 0x0f;
|
|---|
| 961 | if (uFamily == 0x0f)
|
|---|
| 962 | uFamily += (uEAX >> 20) & 0xff;
|
|---|
| 963 | if (uFamily >= 0x06)
|
|---|
| 964 | uModel += ((uEAX >> 16) & 0x0f) << 4;
|
|---|
| 965 | if ( (uFamily == 0x0f /*P4*/ && uModel >= 0x03)
|
|---|
| 966 | || (uFamily == 0x06 /*P2/P3*/ && uModel >= 0x0e))
|
|---|
| 967 | return true;
|
|---|
| 968 | }
|
|---|
| 969 | else if (CPUMGetHostCpuVendor(pVM) == CPUMCPUVENDOR_VIA)
|
|---|
| 970 | {
|
|---|
| 971 | /*
|
|---|
| 972 | * CentaurHauls - Check the model, family and stepping.
|
|---|
| 973 | *
|
|---|
| 974 | * This only checks for VIA CPU models Nano X2, Nano X3,
|
|---|
| 975 | * Eden X2 and QuadCore.
|
|---|
| 976 | */
|
|---|
| 977 | /** @todo use RTX86GetCpuFamily() and RTX86GetCpuModel() here. */
|
|---|
| 978 | ASMCpuId(1, &uEAX, &uEBX, &uECX, &uEDX);
|
|---|
| 979 | unsigned uStepping = (uEAX & 0x0f);
|
|---|
| 980 | unsigned uModel = (uEAX >> 4) & 0x0f;
|
|---|
| 981 | unsigned uFamily = (uEAX >> 8) & 0x0f;
|
|---|
| 982 | if ( uFamily == 0x06
|
|---|
| 983 | && uModel == 0x0f
|
|---|
| 984 | && uStepping >= 0x0c
|
|---|
| 985 | && uStepping <= 0x0f)
|
|---|
| 986 | return true;
|
|---|
| 987 | }
|
|---|
| 988 | else if (CPUMGetHostCpuVendor(pVM) == CPUMCPUVENDOR_SHANGHAI)
|
|---|
| 989 | {
|
|---|
| 990 | /*
|
|---|
| 991 | * Shanghai - Check the model, family and stepping.
|
|---|
| 992 | */
|
|---|
| 993 | /** @todo use RTX86GetCpuFamily() and RTX86GetCpuModel() here. */
|
|---|
| 994 | ASMCpuId(1, &uEAX, &uEBX, &uECX, &uEDX);
|
|---|
| 995 | unsigned uFamily = (uEAX >> 8) & 0x0f;
|
|---|
| 996 | if ( uFamily == 0x06
|
|---|
| 997 | || uFamily == 0x07)
|
|---|
| 998 | {
|
|---|
| 999 | return true;
|
|---|
| 1000 | }
|
|---|
| 1001 | }
|
|---|
| 1002 | }
|
|---|
| 1003 |
|
|---|
| 1004 | # else /* !X86 && !AMD64 */
|
|---|
| 1005 | RT_NOREF_PV(pVM);
|
|---|
| 1006 | # endif /* !X86 && !AMD64 */
|
|---|
| 1007 | return false;
|
|---|
| 1008 | }
|
|---|
| 1009 |
|
|---|
| 1010 |
|
|---|
| 1011 | /**
|
|---|
| 1012 | * Calibrate the CPU tick.
|
|---|
| 1013 | *
|
|---|
| 1014 | * @returns Number of ticks per second.
|
|---|
| 1015 | */
|
|---|
| 1016 | static uint64_t tmR3CalibrateTSC(void)
|
|---|
| 1017 | {
|
|---|
| 1018 | uint64_t u64Hz;
|
|---|
| 1019 |
|
|---|
| 1020 | /*
|
|---|
| 1021 | * Use GIP when available. Prefere the nominal one, no need to wait for it.
|
|---|
| 1022 | */
|
|---|
| 1023 | PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
|
|---|
| 1024 | if (pGip)
|
|---|
| 1025 | {
|
|---|
| 1026 | u64Hz = pGip->u64CpuHz;
|
|---|
| 1027 | if (u64Hz < _1T && u64Hz > _1M)
|
|---|
| 1028 | return u64Hz;
|
|---|
| 1029 | AssertFailed(); /* This shouldn't happen. */
|
|---|
| 1030 |
|
|---|
| 1031 | u64Hz = SUPGetCpuHzFromGip(pGip);
|
|---|
| 1032 | if (u64Hz < _1T && u64Hz > _1M)
|
|---|
| 1033 | return u64Hz;
|
|---|
| 1034 |
|
|---|
| 1035 | AssertFailed(); /* This shouldn't happen. */
|
|---|
| 1036 | }
|
|---|
| 1037 | else
|
|---|
| 1038 | Assert(SUPR3IsDriverless());
|
|---|
| 1039 |
|
|---|
| 1040 | /* Call this once first to make sure it's initialized. */
|
|---|
| 1041 | RTTimeNanoTS();
|
|---|
| 1042 |
|
|---|
| 1043 | /*
|
|---|
| 1044 | * Yield the CPU to increase our chances of getting a correct value.
|
|---|
| 1045 | */
|
|---|
| 1046 | RTThreadYield(); /* Try avoid interruptions between TSC and NanoTS samplings. */
|
|---|
| 1047 | static const unsigned s_auSleep[5] = { 50, 30, 30, 40, 40 };
|
|---|
| 1048 | uint64_t au64Samples[5];
|
|---|
| 1049 | unsigned i;
|
|---|
| 1050 | for (i = 0; i < RT_ELEMENTS(au64Samples); i++)
|
|---|
| 1051 | {
|
|---|
| 1052 | RTMSINTERVAL cMillies;
|
|---|
| 1053 | int cTries = 5;
|
|---|
| 1054 | uint64_t u64Start = ASMReadTSC();
|
|---|
| 1055 | uint64_t u64End;
|
|---|
| 1056 | uint64_t StartTS = RTTimeNanoTS();
|
|---|
| 1057 | uint64_t EndTS;
|
|---|
| 1058 | do
|
|---|
| 1059 | {
|
|---|
| 1060 | RTThreadSleep(s_auSleep[i]);
|
|---|
| 1061 | u64End = ASMReadTSC();
|
|---|
| 1062 | EndTS = RTTimeNanoTS();
|
|---|
| 1063 | cMillies = (RTMSINTERVAL)((EndTS - StartTS + 500000) / 1000000);
|
|---|
| 1064 | } while ( cMillies == 0 /* the sleep may be interrupted... */
|
|---|
| 1065 | || (cMillies < 20 && --cTries > 0));
|
|---|
| 1066 | uint64_t u64Diff = u64End - u64Start;
|
|---|
| 1067 |
|
|---|
| 1068 | au64Samples[i] = (u64Diff * 1000) / cMillies;
|
|---|
| 1069 | AssertMsg(cTries > 0, ("cMillies=%d i=%d\n", cMillies, i));
|
|---|
| 1070 | }
|
|---|
| 1071 |
|
|---|
| 1072 | /*
|
|---|
| 1073 | * Discard the highest and lowest results and calculate the average.
|
|---|
| 1074 | */
|
|---|
| 1075 | unsigned iHigh = 0;
|
|---|
| 1076 | unsigned iLow = 0;
|
|---|
| 1077 | for (i = 1; i < RT_ELEMENTS(au64Samples); i++)
|
|---|
| 1078 | {
|
|---|
| 1079 | if (au64Samples[i] < au64Samples[iLow])
|
|---|
| 1080 | iLow = i;
|
|---|
| 1081 | if (au64Samples[i] > au64Samples[iHigh])
|
|---|
| 1082 | iHigh = i;
|
|---|
| 1083 | }
|
|---|
| 1084 | au64Samples[iLow] = 0;
|
|---|
| 1085 | au64Samples[iHigh] = 0;
|
|---|
| 1086 |
|
|---|
| 1087 | u64Hz = au64Samples[0];
|
|---|
| 1088 | for (i = 1; i < RT_ELEMENTS(au64Samples); i++)
|
|---|
| 1089 | u64Hz += au64Samples[i];
|
|---|
| 1090 | u64Hz /= RT_ELEMENTS(au64Samples) - 2;
|
|---|
| 1091 |
|
|---|
| 1092 | return u64Hz;
|
|---|
| 1093 | }
|
|---|
| 1094 |
|
|---|
| 1095 |
|
|---|
| 1096 | /**
|
|---|
| 1097 | * Finalizes the TM initialization.
|
|---|
| 1098 | *
|
|---|
| 1099 | * @returns VBox status code.
|
|---|
| 1100 | * @param pVM The cross context VM structure.
|
|---|
| 1101 | */
|
|---|
| 1102 | VMM_INT_DECL(int) TMR3InitFinalize(PVM pVM)
|
|---|
| 1103 | {
|
|---|
| 1104 | int rc;
|
|---|
| 1105 |
|
|---|
| 1106 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 1107 | /*
|
|---|
| 1108 | * Create a timer for refreshing the CPU load stats.
|
|---|
| 1109 | */
|
|---|
| 1110 | TMTIMERHANDLE hTimer;
|
|---|
| 1111 | rc = TMR3TimerCreate(pVM, TMCLOCK_REAL, tmR3CpuLoadTimer, NULL, TMTIMER_FLAGS_NO_RING0, "CPU Load Timer", &hTimer);
|
|---|
| 1112 | if (RT_SUCCESS(rc))
|
|---|
| 1113 | rc = TMTimerSetMillies(pVM, hTimer, 1000);
|
|---|
| 1114 | #endif
|
|---|
| 1115 |
|
|---|
| 1116 | /*
|
|---|
| 1117 | * GIM is now initialized. Determine if TSC mode switching is allowed (respecting CFGM override).
|
|---|
| 1118 | */
|
|---|
| 1119 | pVM->tm.s.fTSCModeSwitchAllowed &= tmR3HasFixedTSC(pVM) && GIMIsEnabled(pVM);
|
|---|
| 1120 | LogRel(("TM: TMR3InitFinalize: fTSCModeSwitchAllowed=%RTbool\n", pVM->tm.s.fTSCModeSwitchAllowed));
|
|---|
| 1121 |
|
|---|
| 1122 | /*
|
|---|
| 1123 | * Grow the virtual & real timer tables so we've got sufficient
|
|---|
| 1124 | * space for dynamically created timers. We cannot allocate more
|
|---|
| 1125 | * after ring-0 init completes.
|
|---|
| 1126 | */
|
|---|
| 1127 | static struct { uint32_t idxQueue, cExtra; } s_aExtra[] = { {TMCLOCK_VIRTUAL, 128}, {TMCLOCK_REAL, 32} };
|
|---|
| 1128 | for (uint32_t i = 0; i < RT_ELEMENTS(s_aExtra); i++)
|
|---|
| 1129 | {
|
|---|
| 1130 | PTMTIMERQUEUE pQueue = &pVM->tm.s.aTimerQueues[s_aExtra[i].idxQueue];
|
|---|
| 1131 | PDMCritSectRwEnterExcl(pVM, &pQueue->AllocLock, VERR_IGNORED);
|
|---|
| 1132 | if (s_aExtra[i].cExtra > pQueue->cTimersFree)
|
|---|
| 1133 | {
|
|---|
| 1134 | uint32_t cTimersAlloc = pQueue->cTimersAlloc + s_aExtra[i].cExtra - pQueue->cTimersFree;
|
|---|
| 1135 | rc = tmR3TimerQueueGrow(pVM, pQueue, cTimersAlloc);
|
|---|
| 1136 | AssertLogRelMsgReturn(RT_SUCCESS(rc), ("rc=%Rrc cTimersAlloc=%u %s\n", rc, cTimersAlloc, pQueue->szName), rc);
|
|---|
| 1137 | }
|
|---|
| 1138 | PDMCritSectRwLeaveExcl(pVM, &pQueue->AllocLock);
|
|---|
| 1139 | }
|
|---|
| 1140 |
|
|---|
| 1141 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1142 | /*
|
|---|
| 1143 | * Register timer statistics now that we've fixed the timer table sizes.
|
|---|
| 1144 | */
|
|---|
| 1145 | for (uint32_t idxQueue = 0; idxQueue < RT_ELEMENTS(pVM->tm.s.aTimerQueues); idxQueue++)
|
|---|
| 1146 | {
|
|---|
| 1147 | pVM->tm.s.aTimerQueues[idxQueue].fCannotGrow = true;
|
|---|
| 1148 | tmR3TimerQueueRegisterStats(pVM, &pVM->tm.s.aTimerQueues[idxQueue], UINT32_MAX);
|
|---|
| 1149 | }
|
|---|
| 1150 | #endif
|
|---|
| 1151 |
|
|---|
| 1152 | return rc;
|
|---|
| 1153 | }
|
|---|
| 1154 |
|
|---|
| 1155 |
|
|---|
| 1156 | /**
|
|---|
| 1157 | * Applies relocations to data and code managed by this
|
|---|
| 1158 | * component. This function will be called at init and
|
|---|
| 1159 | * whenever the VMM need to relocate it self inside the GC.
|
|---|
| 1160 | *
|
|---|
| 1161 | * @param pVM The cross context VM structure.
|
|---|
| 1162 | * @param offDelta Relocation delta relative to old location.
|
|---|
| 1163 | */
|
|---|
| 1164 | VMM_INT_DECL(void) TMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
|
|---|
| 1165 | {
|
|---|
| 1166 | LogFlow(("TMR3Relocate\n"));
|
|---|
| 1167 | RT_NOREF(pVM, offDelta);
|
|---|
| 1168 | }
|
|---|
| 1169 |
|
|---|
| 1170 |
|
|---|
| 1171 | /**
|
|---|
| 1172 | * Terminates the TM.
|
|---|
| 1173 | *
|
|---|
| 1174 | * Termination means cleaning up and freeing all resources,
|
|---|
| 1175 | * the VM it self is at this point powered off or suspended.
|
|---|
| 1176 | *
|
|---|
| 1177 | * @returns VBox status code.
|
|---|
| 1178 | * @param pVM The cross context VM structure.
|
|---|
| 1179 | */
|
|---|
| 1180 | VMM_INT_DECL(int) TMR3Term(PVM pVM)
|
|---|
| 1181 | {
|
|---|
| 1182 | if (pVM->tm.s.pTimer)
|
|---|
| 1183 | {
|
|---|
| 1184 | int rc = RTTimerDestroy(pVM->tm.s.pTimer);
|
|---|
| 1185 | AssertRC(rc);
|
|---|
| 1186 | pVM->tm.s.pTimer = NULL;
|
|---|
| 1187 | }
|
|---|
| 1188 |
|
|---|
| 1189 | return VINF_SUCCESS;
|
|---|
| 1190 | }
|
|---|
| 1191 |
|
|---|
| 1192 |
|
|---|
| 1193 | /**
|
|---|
| 1194 | * The VM is being reset.
|
|---|
| 1195 | *
|
|---|
| 1196 | * For the TM component this means that a rescheduling is preformed,
|
|---|
| 1197 | * the FF is cleared and but without running the queues. We'll have to
|
|---|
| 1198 | * check if this makes sense or not, but it seems like a good idea now....
|
|---|
| 1199 | *
|
|---|
| 1200 | * @param pVM The cross context VM structure.
|
|---|
| 1201 | */
|
|---|
| 1202 | VMM_INT_DECL(void) TMR3Reset(PVM pVM)
|
|---|
| 1203 | {
|
|---|
| 1204 | LogFlow(("TMR3Reset:\n"));
|
|---|
| 1205 | VM_ASSERT_EMT(pVM);
|
|---|
| 1206 |
|
|---|
| 1207 | /*
|
|---|
| 1208 | * Abort any pending catch up.
|
|---|
| 1209 | * This isn't perfect...
|
|---|
| 1210 | */
|
|---|
| 1211 | if (pVM->tm.s.fVirtualSyncCatchUp)
|
|---|
| 1212 | {
|
|---|
| 1213 | const uint64_t offVirtualNow = TMVirtualGetNoCheck(pVM);
|
|---|
| 1214 | const uint64_t offVirtualSyncNow = TMVirtualSyncGetNoCheck(pVM);
|
|---|
| 1215 | if (pVM->tm.s.fVirtualSyncCatchUp)
|
|---|
| 1216 | {
|
|---|
| 1217 | STAM_PROFILE_ADV_STOP(&pVM->tm.s.StatVirtualSyncCatchup, c);
|
|---|
| 1218 |
|
|---|
| 1219 | const uint64_t offOld = pVM->tm.s.offVirtualSyncGivenUp;
|
|---|
| 1220 | const uint64_t offNew = offVirtualNow - offVirtualSyncNow;
|
|---|
| 1221 | Assert(offOld <= offNew);
|
|---|
| 1222 | ASMAtomicWriteU64((uint64_t volatile *)&pVM->tm.s.offVirtualSyncGivenUp, offNew);
|
|---|
| 1223 | ASMAtomicWriteU64((uint64_t volatile *)&pVM->tm.s.offVirtualSync, offNew);
|
|---|
| 1224 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, false);
|
|---|
| 1225 | LogRel(("TM: Aborting catch-up attempt on reset with a %'RU64 ns lag on reset; new total: %'RU64 ns\n", offNew - offOld, offNew));
|
|---|
| 1226 | }
|
|---|
| 1227 | }
|
|---|
| 1228 |
|
|---|
| 1229 | /*
|
|---|
| 1230 | * Process the queues.
|
|---|
| 1231 | */
|
|---|
| 1232 | for (uint32_t idxQueue = 0; idxQueue < RT_ELEMENTS(pVM->tm.s.aTimerQueues); idxQueue++)
|
|---|
| 1233 | {
|
|---|
| 1234 | PTMTIMERQUEUE pQueue = &pVM->tm.s.aTimerQueues[idxQueue];
|
|---|
| 1235 | PDMCritSectEnter(pVM, &pQueue->TimerLock, VERR_IGNORED);
|
|---|
| 1236 | tmTimerQueueSchedule(pVM, pQueue, pQueue);
|
|---|
| 1237 | PDMCritSectLeave(pVM, &pQueue->TimerLock);
|
|---|
| 1238 | }
|
|---|
| 1239 | #ifdef VBOX_STRICT
|
|---|
| 1240 | tmTimerQueuesSanityChecks(pVM, "TMR3Reset");
|
|---|
| 1241 | #endif
|
|---|
| 1242 |
|
|---|
| 1243 | PVMCPU pVCpuDst = pVM->apCpusR3[pVM->tm.s.idTimerCpu];
|
|---|
| 1244 | VMCPU_FF_CLEAR(pVCpuDst, VMCPU_FF_TIMER); /** @todo FIXME: this isn't right. */
|
|---|
| 1245 |
|
|---|
| 1246 | /*
|
|---|
| 1247 | * Switch TM TSC mode back to the original mode after a reset for
|
|---|
| 1248 | * paravirtualized guests that alter the TM TSC mode during operation.
|
|---|
| 1249 | * We're already in an EMT rendezvous at this point.
|
|---|
| 1250 | */
|
|---|
| 1251 | if ( pVM->tm.s.fTSCModeSwitchAllowed
|
|---|
| 1252 | && pVM->tm.s.enmTSCMode != pVM->tm.s.enmOriginalTSCMode)
|
|---|
| 1253 | {
|
|---|
| 1254 | VM_ASSERT_EMT0(pVM);
|
|---|
| 1255 | tmR3CpuTickParavirtDisable(pVM, pVM->apCpusR3[0], NULL /* pvData */);
|
|---|
| 1256 | }
|
|---|
| 1257 | Assert(!GIMIsParavirtTscEnabled(pVM));
|
|---|
| 1258 | pVM->tm.s.fParavirtTscEnabled = false;
|
|---|
| 1259 |
|
|---|
| 1260 | /*
|
|---|
| 1261 | * Reset TSC to avoid a Windows 8+ bug (see @bugref{8926}). If Windows
|
|---|
| 1262 | * sees TSC value beyond 0x40000000000 at startup, it will reset the
|
|---|
| 1263 | * TSC on boot-up CPU only, causing confusion and mayhem with SMP.
|
|---|
| 1264 | */
|
|---|
| 1265 | VM_ASSERT_EMT0(pVM);
|
|---|
| 1266 | uint64_t offTscRawSrc;
|
|---|
| 1267 | switch (pVM->tm.s.enmTSCMode)
|
|---|
| 1268 | {
|
|---|
| 1269 | case TMTSCMODE_REAL_TSC_OFFSET:
|
|---|
| 1270 | offTscRawSrc = SUPReadTsc() * pVM->tm.s.u8TSCMultiplier;
|
|---|
| 1271 | break;
|
|---|
| 1272 | case TMTSCMODE_DYNAMIC:
|
|---|
| 1273 | case TMTSCMODE_VIRT_TSC_EMULATED:
|
|---|
| 1274 | offTscRawSrc = TMVirtualSyncGetNoCheck(pVM);
|
|---|
| 1275 | offTscRawSrc = ASMMultU64ByU32DivByU32(offTscRawSrc, pVM->tm.s.cTSCTicksPerSecond, TMCLOCK_FREQ_VIRTUAL);
|
|---|
| 1276 | break;
|
|---|
| 1277 | case TMTSCMODE_NATIVE_API:
|
|---|
| 1278 | /** @todo NEM TSC reset on reset for Windows8+ bug workaround. */
|
|---|
| 1279 | offTscRawSrc = 0;
|
|---|
| 1280 | break;
|
|---|
| 1281 | default:
|
|---|
| 1282 | AssertFailedBreakStmt(offTscRawSrc = 0);
|
|---|
| 1283 | }
|
|---|
| 1284 | for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
|
|---|
| 1285 | {
|
|---|
| 1286 | PVMCPU pVCpu = pVM->apCpusR3[idCpu];
|
|---|
| 1287 | pVCpu->tm.s.offTSCRawSrc = offTscRawSrc;
|
|---|
| 1288 | pVCpu->tm.s.u64TSC = 0;
|
|---|
| 1289 | pVCpu->tm.s.u64TSCLastSeen = 0;
|
|---|
| 1290 | #if defined(VBOX_VMM_TARGET_ARMV8)
|
|---|
| 1291 | pVCpu->cNsVTimerActivate = UINT64_MAX;
|
|---|
| 1292 | #endif
|
|---|
| 1293 | }
|
|---|
| 1294 | }
|
|---|
| 1295 |
|
|---|
| 1296 |
|
|---|
| 1297 | /**
|
|---|
| 1298 | * Execute state save operation.
|
|---|
| 1299 | *
|
|---|
| 1300 | * @returns VBox status code.
|
|---|
| 1301 | * @param pVM The cross context VM structure.
|
|---|
| 1302 | * @param pSSM SSM operation handle.
|
|---|
| 1303 | */
|
|---|
| 1304 | static DECLCALLBACK(int) tmR3Save(PVM pVM, PSSMHANDLE pSSM)
|
|---|
| 1305 | {
|
|---|
| 1306 | LogFlow(("tmR3Save:\n"));
|
|---|
| 1307 | #ifdef VBOX_STRICT
|
|---|
| 1308 | for (VMCPUID i = 0; i < pVM->cCpus; i++)
|
|---|
| 1309 | {
|
|---|
| 1310 | PVMCPU pVCpu = pVM->apCpusR3[i];
|
|---|
| 1311 | Assert(!pVCpu->tm.s.fTSCTicking);
|
|---|
| 1312 | }
|
|---|
| 1313 | Assert(!pVM->tm.s.cVirtualTicking);
|
|---|
| 1314 | Assert(!pVM->tm.s.fVirtualSyncTicking);
|
|---|
| 1315 | Assert(!pVM->tm.s.cTSCsTicking);
|
|---|
| 1316 | #endif
|
|---|
| 1317 |
|
|---|
| 1318 | /*
|
|---|
| 1319 | * Save the virtual clocks.
|
|---|
| 1320 | */
|
|---|
| 1321 | /* the virtual clock. */
|
|---|
| 1322 | SSMR3PutU64(pSSM, TMCLOCK_FREQ_VIRTUAL);
|
|---|
| 1323 | SSMR3PutU64(pSSM, pVM->tm.s.u64Virtual);
|
|---|
| 1324 |
|
|---|
| 1325 | /* the virtual timer synchronous clock. */
|
|---|
| 1326 | SSMR3PutU64(pSSM, pVM->tm.s.u64VirtualSync);
|
|---|
| 1327 | SSMR3PutU64(pSSM, pVM->tm.s.offVirtualSync);
|
|---|
| 1328 | SSMR3PutU64(pSSM, pVM->tm.s.offVirtualSyncGivenUp);
|
|---|
| 1329 | SSMR3PutU64(pSSM, pVM->tm.s.u64VirtualSyncCatchUpPrev);
|
|---|
| 1330 | SSMR3PutBool(pSSM, pVM->tm.s.fVirtualSyncCatchUp);
|
|---|
| 1331 |
|
|---|
| 1332 | /* real time clock */
|
|---|
| 1333 | SSMR3PutU64(pSSM, TMCLOCK_FREQ_REAL);
|
|---|
| 1334 |
|
|---|
| 1335 | /* the cpu tick clock. */
|
|---|
| 1336 | for (VMCPUID i = 0; i < pVM->cCpus; i++)
|
|---|
| 1337 | {
|
|---|
| 1338 | PVMCPU pVCpu = pVM->apCpusR3[i];
|
|---|
| 1339 | SSMR3PutU64(pSSM, TMCpuTickGet(pVCpu));
|
|---|
| 1340 | }
|
|---|
| 1341 | return SSMR3PutU64(pSSM, pVM->tm.s.cTSCTicksPerSecond);
|
|---|
| 1342 | }
|
|---|
| 1343 |
|
|---|
| 1344 |
|
|---|
| 1345 | /**
|
|---|
| 1346 | * Execute state load operation.
|
|---|
| 1347 | *
|
|---|
| 1348 | * @returns VBox status code.
|
|---|
| 1349 | * @param pVM The cross context VM structure.
|
|---|
| 1350 | * @param pSSM SSM operation handle.
|
|---|
| 1351 | * @param uVersion Data layout version.
|
|---|
| 1352 | * @param uPass The data pass.
|
|---|
| 1353 | */
|
|---|
| 1354 | static DECLCALLBACK(int) tmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
|
|---|
| 1355 | {
|
|---|
| 1356 | LogFlow(("tmR3Load:\n"));
|
|---|
| 1357 |
|
|---|
| 1358 | Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
|
|---|
| 1359 | #ifdef VBOX_STRICT
|
|---|
| 1360 | for (VMCPUID i = 0; i < pVM->cCpus; i++)
|
|---|
| 1361 | {
|
|---|
| 1362 | PVMCPU pVCpu = pVM->apCpusR3[i];
|
|---|
| 1363 | Assert(!pVCpu->tm.s.fTSCTicking);
|
|---|
| 1364 | }
|
|---|
| 1365 | Assert(!pVM->tm.s.cVirtualTicking);
|
|---|
| 1366 | Assert(!pVM->tm.s.fVirtualSyncTicking);
|
|---|
| 1367 | Assert(!pVM->tm.s.cTSCsTicking);
|
|---|
| 1368 | #endif
|
|---|
| 1369 |
|
|---|
| 1370 | /*
|
|---|
| 1371 | * Validate version.
|
|---|
| 1372 | */
|
|---|
| 1373 | if (uVersion != TM_SAVED_STATE_VERSION)
|
|---|
| 1374 | {
|
|---|
| 1375 | AssertMsgFailed(("tmR3Load: Invalid version uVersion=%d!\n", uVersion));
|
|---|
| 1376 | return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
|
|---|
| 1377 | }
|
|---|
| 1378 |
|
|---|
| 1379 | /*
|
|---|
| 1380 | * Load the virtual clock.
|
|---|
| 1381 | */
|
|---|
| 1382 | pVM->tm.s.cVirtualTicking = 0;
|
|---|
| 1383 | /* the virtual clock. */
|
|---|
| 1384 | uint64_t u64Hz;
|
|---|
| 1385 | int rc = SSMR3GetU64(pSSM, &u64Hz);
|
|---|
| 1386 | if (RT_FAILURE(rc))
|
|---|
| 1387 | return rc;
|
|---|
| 1388 | if (u64Hz != TMCLOCK_FREQ_VIRTUAL)
|
|---|
| 1389 | {
|
|---|
| 1390 | AssertMsgFailed(("The virtual clock frequency differs! Saved: %'RU64 Binary: %'RU64\n",
|
|---|
| 1391 | u64Hz, TMCLOCK_FREQ_VIRTUAL));
|
|---|
| 1392 | return VERR_SSM_VIRTUAL_CLOCK_HZ;
|
|---|
| 1393 | }
|
|---|
| 1394 | SSMR3GetU64(pSSM, &pVM->tm.s.u64Virtual);
|
|---|
| 1395 | pVM->tm.s.u64VirtualOffset = 0;
|
|---|
| 1396 |
|
|---|
| 1397 | /* the virtual timer synchronous clock. */
|
|---|
| 1398 | pVM->tm.s.fVirtualSyncTicking = false;
|
|---|
| 1399 | uint64_t u64;
|
|---|
| 1400 | SSMR3GetU64(pSSM, &u64);
|
|---|
| 1401 | pVM->tm.s.u64VirtualSync = u64;
|
|---|
| 1402 | SSMR3GetU64(pSSM, &u64);
|
|---|
| 1403 | pVM->tm.s.offVirtualSync = u64;
|
|---|
| 1404 | SSMR3GetU64(pSSM, &u64);
|
|---|
| 1405 | pVM->tm.s.offVirtualSyncGivenUp = u64;
|
|---|
| 1406 | SSMR3GetU64(pSSM, &u64);
|
|---|
| 1407 | pVM->tm.s.u64VirtualSyncCatchUpPrev = u64;
|
|---|
| 1408 | bool f;
|
|---|
| 1409 | SSMR3GetBool(pSSM, &f);
|
|---|
| 1410 | pVM->tm.s.fVirtualSyncCatchUp = f;
|
|---|
| 1411 |
|
|---|
| 1412 | /* the real clock */
|
|---|
| 1413 | rc = SSMR3GetU64(pSSM, &u64Hz);
|
|---|
| 1414 | if (RT_FAILURE(rc))
|
|---|
| 1415 | return rc;
|
|---|
| 1416 | if (u64Hz != TMCLOCK_FREQ_REAL)
|
|---|
| 1417 | {
|
|---|
| 1418 | AssertMsgFailed(("The real clock frequency differs! Saved: %'RU64 Binary: %'RU64\n",
|
|---|
| 1419 | u64Hz, TMCLOCK_FREQ_REAL));
|
|---|
| 1420 | return VERR_SSM_VIRTUAL_CLOCK_HZ; /* misleading... */
|
|---|
| 1421 | }
|
|---|
| 1422 |
|
|---|
| 1423 | /* the cpu tick clock. */
|
|---|
| 1424 | pVM->tm.s.cTSCsTicking = 0;
|
|---|
| 1425 | pVM->tm.s.offTSCPause = 0;
|
|---|
| 1426 | pVM->tm.s.u64LastPausedTSC = 0;
|
|---|
| 1427 | for (VMCPUID i = 0; i < pVM->cCpus; i++)
|
|---|
| 1428 | {
|
|---|
| 1429 | PVMCPU pVCpu = pVM->apCpusR3[i];
|
|---|
| 1430 |
|
|---|
| 1431 | pVCpu->tm.s.fTSCTicking = false;
|
|---|
| 1432 | SSMR3GetU64(pSSM, &pVCpu->tm.s.u64TSC);
|
|---|
| 1433 | if (pVM->tm.s.u64LastPausedTSC < pVCpu->tm.s.u64TSC)
|
|---|
| 1434 | pVM->tm.s.u64LastPausedTSC = pVCpu->tm.s.u64TSC;
|
|---|
| 1435 |
|
|---|
| 1436 | if (pVM->tm.s.enmTSCMode == TMTSCMODE_REAL_TSC_OFFSET)
|
|---|
| 1437 | pVCpu->tm.s.offTSCRawSrc = 0; /** @todo TSC restore stuff and HWACC. */
|
|---|
| 1438 | }
|
|---|
| 1439 |
|
|---|
| 1440 | rc = SSMR3GetU64(pSSM, &u64Hz);
|
|---|
| 1441 | if (RT_FAILURE(rc))
|
|---|
| 1442 | return rc;
|
|---|
| 1443 | if (pVM->tm.s.enmTSCMode != TMTSCMODE_REAL_TSC_OFFSET)
|
|---|
| 1444 | pVM->tm.s.cTSCTicksPerSecond = u64Hz;
|
|---|
| 1445 |
|
|---|
| 1446 | LogRel(("TM: cTSCTicksPerSecond=%#RX64 (%'RU64) enmTSCMode=%d (%s) (state load)\n",
|
|---|
| 1447 | pVM->tm.s.cTSCTicksPerSecond, pVM->tm.s.cTSCTicksPerSecond, pVM->tm.s.enmTSCMode, tmR3GetTSCModeName(pVM)));
|
|---|
| 1448 |
|
|---|
| 1449 | /* Disabled as this isn't tested, also should this apply only if GIM is enabled etc. */
|
|---|
| 1450 | #if 0
|
|---|
| 1451 | /*
|
|---|
| 1452 | * If the current host TSC frequency is incompatible with what is in the
|
|---|
| 1453 | * saved state of the VM, fall back to emulating TSC and disallow TSC mode
|
|---|
| 1454 | * switches during VM runtime (e.g. by GIM).
|
|---|
| 1455 | */
|
|---|
| 1456 | if ( GIMIsEnabled(pVM)
|
|---|
| 1457 | || pVM->tm.s.enmTSCMode == TMTSCMODE_REAL_TSC_OFFSET)
|
|---|
| 1458 | {
|
|---|
| 1459 | uint64_t uGipCpuHz;
|
|---|
| 1460 | bool fRelax = RTSystemIsInsideVM();
|
|---|
| 1461 | bool fCompat = SUPIsTscFreqCompatible(pVM->tm.s.cTSCTicksPerSecond, &uGipCpuHz, fRelax);
|
|---|
| 1462 | if (!fCompat)
|
|---|
| 1463 | {
|
|---|
| 1464 | pVM->tm.s.enmTSCMode = TMTSCMODE_VIRT_TSC_EMULATED;
|
|---|
| 1465 | pVM->tm.s.fTSCModeSwitchAllowed = false;
|
|---|
| 1466 | if (g_pSUPGlobalInfoPage->u32Mode != SUPGIPMODE_ASYNC_TSC)
|
|---|
| 1467 | {
|
|---|
| 1468 | LogRel(("TM: TSC frequency incompatible! uGipCpuHz=%#RX64 (%'RU64) enmTSCMode=%d (%s) fTSCModeSwitchAllowed=%RTbool (state load)\n",
|
|---|
| 1469 | uGipCpuHz, uGipCpuHz, pVM->tm.s.enmTSCMode, tmR3GetTSCModeName(pVM), pVM->tm.s.fTSCModeSwitchAllowed));
|
|---|
| 1470 | }
|
|---|
| 1471 | else
|
|---|
| 1472 | {
|
|---|
| 1473 | LogRel(("TM: GIP is async, enmTSCMode=%d (%s) fTSCModeSwitchAllowed=%RTbool (state load)\n",
|
|---|
| 1474 | uGipCpuHz, uGipCpuHz, pVM->tm.s.enmTSCMode, tmR3GetTSCModeName(pVM), pVM->tm.s.fTSCModeSwitchAllowed));
|
|---|
| 1475 | }
|
|---|
| 1476 | }
|
|---|
| 1477 | }
|
|---|
| 1478 | #endif
|
|---|
| 1479 |
|
|---|
| 1480 | /*
|
|---|
| 1481 | * Make sure timers get rescheduled immediately.
|
|---|
| 1482 | */
|
|---|
| 1483 | PVMCPU pVCpuDst = pVM->apCpusR3[pVM->tm.s.idTimerCpu];
|
|---|
| 1484 | VMCPU_FF_SET(pVCpuDst, VMCPU_FF_TIMER);
|
|---|
| 1485 |
|
|---|
| 1486 | return VINF_SUCCESS;
|
|---|
| 1487 | }
|
|---|
| 1488 |
|
|---|
| 1489 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1490 |
|
|---|
| 1491 | /**
|
|---|
| 1492 | * Register statistics for a timer.
|
|---|
| 1493 | *
|
|---|
| 1494 | * @param pVM The cross context VM structure.
|
|---|
| 1495 | * @param pQueue The queue the timer belongs to.
|
|---|
| 1496 | * @param pTimer The timer to register statistics for.
|
|---|
| 1497 | */
|
|---|
| 1498 | static void tmR3TimerRegisterStats(PVM pVM, PTMTIMERQUEUE pQueue, PTMTIMER pTimer)
|
|---|
| 1499 | {
|
|---|
| 1500 | STAMR3RegisterF(pVM, &pTimer->StatTimer, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL,
|
|---|
| 1501 | pQueue->szName, "/TM/Timers/%s", pTimer->szName);
|
|---|
| 1502 | STAMR3RegisterF(pVM, &pTimer->StatCritSectEnter, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL,
|
|---|
| 1503 | "", "/TM/Timers/%s/CritSectEnter", pTimer->szName);
|
|---|
| 1504 | STAMR3RegisterF(pVM, &pTimer->StatGet, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_CALLS,
|
|---|
| 1505 | "", "/TM/Timers/%s/Get", pTimer->szName);
|
|---|
| 1506 | STAMR3RegisterF(pVM, &pTimer->StatSetAbsolute, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_CALLS,
|
|---|
| 1507 | "", "/TM/Timers/%s/SetAbsolute", pTimer->szName);
|
|---|
| 1508 | STAMR3RegisterF(pVM, &pTimer->StatSetRelative, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_CALLS,
|
|---|
| 1509 | "", "/TM/Timers/%s/SetRelative", pTimer->szName);
|
|---|
| 1510 | STAMR3RegisterF(pVM, &pTimer->StatStop, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_CALLS,
|
|---|
| 1511 | "", "/TM/Timers/%s/Stop", pTimer->szName);
|
|---|
| 1512 | }
|
|---|
| 1513 |
|
|---|
| 1514 |
|
|---|
| 1515 | /**
|
|---|
| 1516 | * Deregister the statistics for a timer.
|
|---|
| 1517 | */
|
|---|
| 1518 | static void tmR3TimerDeregisterStats(PVM pVM, PTMTIMER pTimer)
|
|---|
| 1519 | {
|
|---|
| 1520 | char szPrefix[128];
|
|---|
| 1521 | size_t cchPrefix = RTStrPrintf(szPrefix, sizeof(szPrefix), "/TM/Timers/%s/", pTimer->szName);
|
|---|
| 1522 | STAMR3DeregisterByPrefix(pVM->pUVM, szPrefix);
|
|---|
| 1523 | szPrefix[cchPrefix - 1] = '\0';
|
|---|
| 1524 | STAMR3Deregister(pVM->pUVM, szPrefix);
|
|---|
| 1525 | }
|
|---|
| 1526 |
|
|---|
| 1527 |
|
|---|
| 1528 | /**
|
|---|
| 1529 | * Register statistics for all allocated timers in a queue.
|
|---|
| 1530 | *
|
|---|
| 1531 | * @param pVM The cross context VM structure.
|
|---|
| 1532 | * @param pQueue The queue to register statistics for.
|
|---|
| 1533 | * @param cTimers Number of timers to consider (in growth scenario).
|
|---|
| 1534 | */
|
|---|
| 1535 | static void tmR3TimerQueueRegisterStats(PVM pVM, PTMTIMERQUEUE pQueue, uint32_t cTimers)
|
|---|
| 1536 | {
|
|---|
| 1537 | uint32_t idxTimer = RT_MIN(cTimers, pQueue->cTimersAlloc);
|
|---|
| 1538 | while (idxTimer-- > 0)
|
|---|
| 1539 | {
|
|---|
| 1540 | PTMTIMER pTimer = &pQueue->paTimers[idxTimer];
|
|---|
| 1541 | TMTIMERSTATE enmState = pTimer->enmState;
|
|---|
| 1542 | if (enmState > TMTIMERSTATE_INVALID && enmState < TMTIMERSTATE_DESTROY)
|
|---|
| 1543 | tmR3TimerRegisterStats(pVM, pQueue, pTimer);
|
|---|
| 1544 | }
|
|---|
| 1545 | }
|
|---|
| 1546 |
|
|---|
| 1547 | #endif /* VBOX_WITH_STATISTICS */
|
|---|
| 1548 |
|
|---|
| 1549 |
|
|---|
| 1550 | /**
|
|---|
| 1551 | * Grows a timer queue.
|
|---|
| 1552 | *
|
|---|
| 1553 | * @returns VBox status code (errors are LogRel'ed already).
|
|---|
| 1554 | * @param pVM The cross context VM structure.
|
|---|
| 1555 | * @param pQueue The timer queue to grow.
|
|---|
| 1556 | * @param cNewTimers The minimum number of timers after growing.
|
|---|
| 1557 | * @note Caller owns the queue's allocation lock.
|
|---|
| 1558 | */
|
|---|
| 1559 | static int tmR3TimerQueueGrow(PVM pVM, PTMTIMERQUEUE pQueue, uint32_t cNewTimers)
|
|---|
| 1560 | {
|
|---|
| 1561 | /*
|
|---|
| 1562 | * Validate input and state.
|
|---|
| 1563 | */
|
|---|
| 1564 | VM_ASSERT_EMT0_RETURN(pVM, VERR_VM_THREAD_NOT_EMT);
|
|---|
| 1565 | VM_ASSERT_STATE_RETURN(pVM, VMSTATE_CREATING, VERR_VM_INVALID_VM_STATE); /** @todo must do better than this! */
|
|---|
| 1566 | AssertReturn(!pQueue->fCannotGrow, VERR_TM_TIMER_QUEUE_CANNOT_GROW);
|
|---|
| 1567 |
|
|---|
| 1568 | uint32_t const cOldEntries = pQueue->cTimersAlloc;
|
|---|
| 1569 | AssertReturn(cNewTimers > cOldEntries, VERR_TM_IPE_1);
|
|---|
| 1570 | AssertReturn(cNewTimers < _32K, VERR_TM_IPE_1);
|
|---|
| 1571 |
|
|---|
| 1572 | /*
|
|---|
| 1573 | * Do the growing.
|
|---|
| 1574 | */
|
|---|
| 1575 | int rc;
|
|---|
| 1576 | if (!SUPR3IsDriverless())
|
|---|
| 1577 | {
|
|---|
| 1578 | rc = VMMR3CallR0Emt(pVM, VMMGetCpu(pVM), VMMR0_DO_TM_GROW_TIMER_QUEUE,
|
|---|
| 1579 | RT_MAKE_U64(cNewTimers, (uint64_t)(pQueue - &pVM->tm.s.aTimerQueues[0])), NULL);
|
|---|
| 1580 | AssertLogRelRCReturn(rc, rc);
|
|---|
| 1581 | AssertReturn(pQueue->cTimersAlloc >= cNewTimers, VERR_TM_IPE_3);
|
|---|
| 1582 | }
|
|---|
| 1583 | else
|
|---|
| 1584 | {
|
|---|
| 1585 | AssertReturn(cNewTimers <= _32K && cOldEntries <= _32K, VERR_TM_TOO_MANY_TIMERS);
|
|---|
| 1586 | ASMCompilerBarrier();
|
|---|
| 1587 |
|
|---|
| 1588 | /*
|
|---|
| 1589 | * Round up the request to the nearest page and do the allocation.
|
|---|
| 1590 | */
|
|---|
| 1591 | size_t cbNew = sizeof(TMTIMER) * cNewTimers;
|
|---|
| 1592 | cbNew = RT_ALIGN_Z(cbNew, HOST_PAGE_SIZE);
|
|---|
| 1593 | cNewTimers = (uint32_t)(cbNew / sizeof(TMTIMER));
|
|---|
| 1594 |
|
|---|
| 1595 | PTMTIMER paTimers = (PTMTIMER)RTMemPageAllocZ(cbNew);
|
|---|
| 1596 | if (paTimers)
|
|---|
| 1597 | {
|
|---|
| 1598 | /*
|
|---|
| 1599 | * Copy over the old timer, init the new free ones, then switch over
|
|---|
| 1600 | * and free the old ones.
|
|---|
| 1601 | */
|
|---|
| 1602 | PTMTIMER const paOldTimers = pQueue->paTimers;
|
|---|
| 1603 | tmHCTimerQueueGrowInit(paTimers, paOldTimers, cNewTimers, cOldEntries);
|
|---|
| 1604 |
|
|---|
| 1605 | pQueue->paTimers = paTimers;
|
|---|
| 1606 | pQueue->cTimersAlloc = cNewTimers;
|
|---|
| 1607 | pQueue->cTimersFree += cNewTimers - (cOldEntries ? cOldEntries : 1);
|
|---|
| 1608 |
|
|---|
| 1609 | RTMemPageFree(paOldTimers, RT_ALIGN_Z(sizeof(TMTIMER) * cOldEntries, HOST_PAGE_SIZE));
|
|---|
| 1610 | rc = VINF_SUCCESS;
|
|---|
| 1611 | }
|
|---|
| 1612 | else
|
|---|
| 1613 | rc = VERR_NO_PAGE_MEMORY;
|
|---|
| 1614 | }
|
|---|
| 1615 | return rc;
|
|---|
| 1616 | }
|
|---|
| 1617 |
|
|---|
| 1618 |
|
|---|
| 1619 | /**
|
|---|
| 1620 | * Internal TMR3TimerCreate worker.
|
|---|
| 1621 | *
|
|---|
| 1622 | * @returns VBox status code.
|
|---|
| 1623 | * @param pVM The cross context VM structure.
|
|---|
| 1624 | * @param enmClock The timer clock.
|
|---|
| 1625 | * @param fFlags TMTIMER_FLAGS_XXX.
|
|---|
| 1626 | * @param pszName The timer name.
|
|---|
| 1627 | * @param ppTimer Where to store the timer pointer on success.
|
|---|
| 1628 | */
|
|---|
| 1629 | static int tmr3TimerCreate(PVM pVM, TMCLOCK enmClock, uint32_t fFlags, const char *pszName, PPTMTIMERR3 ppTimer)
|
|---|
| 1630 | {
|
|---|
| 1631 | PTMTIMER pTimer;
|
|---|
| 1632 |
|
|---|
| 1633 | /*
|
|---|
| 1634 | * Validate input.
|
|---|
| 1635 | */
|
|---|
| 1636 | VM_ASSERT_EMT(pVM);
|
|---|
| 1637 |
|
|---|
| 1638 | AssertReturn((fFlags & (TMTIMER_FLAGS_RING0 | TMTIMER_FLAGS_NO_RING0)) != (TMTIMER_FLAGS_RING0 | TMTIMER_FLAGS_NO_RING0),
|
|---|
| 1639 | VERR_INVALID_FLAGS);
|
|---|
| 1640 |
|
|---|
| 1641 | AssertPtrReturn(pszName, VERR_INVALID_POINTER);
|
|---|
| 1642 | size_t const cchName = strlen(pszName);
|
|---|
| 1643 | AssertMsgReturn(cchName < sizeof(pTimer->szName), ("timer name too long: %s\n", pszName), VERR_INVALID_NAME);
|
|---|
| 1644 | AssertMsgReturn(cchName > 2, ("Too short timer name: %s\n", pszName), VERR_INVALID_NAME);
|
|---|
| 1645 |
|
|---|
| 1646 | AssertMsgReturn(enmClock >= TMCLOCK_REAL && enmClock < TMCLOCK_MAX,
|
|---|
| 1647 | ("%d\n", enmClock), VERR_INVALID_PARAMETER);
|
|---|
| 1648 | AssertReturn(enmClock != TMCLOCK_TSC, VERR_NOT_SUPPORTED);
|
|---|
| 1649 | if (enmClock == TMCLOCK_VIRTUAL_SYNC)
|
|---|
| 1650 | VM_ASSERT_STATE_RETURN(pVM, VMSTATE_CREATING, VERR_WRONG_ORDER);
|
|---|
| 1651 |
|
|---|
| 1652 | /*
|
|---|
| 1653 | * Exclusively lock the queue.
|
|---|
| 1654 | *
|
|---|
| 1655 | * Note! This means that it is not possible to allocate timers from a timer callback.
|
|---|
| 1656 | */
|
|---|
| 1657 | PTMTIMERQUEUE pQueue = &pVM->tm.s.aTimerQueues[enmClock];
|
|---|
| 1658 | int rc = PDMCritSectRwEnterExcl(pVM, &pQueue->AllocLock, VERR_IGNORED);
|
|---|
| 1659 | AssertRCReturn(rc, rc);
|
|---|
| 1660 |
|
|---|
| 1661 | /*
|
|---|
| 1662 | * Allocate the timer.
|
|---|
| 1663 | */
|
|---|
| 1664 | if (!pQueue->cTimersFree)
|
|---|
| 1665 | {
|
|---|
| 1666 | rc = tmR3TimerQueueGrow(pVM, pQueue, pQueue->cTimersAlloc + 64);
|
|---|
| 1667 | AssertRCReturnStmt(rc, PDMCritSectRwLeaveExcl(pVM, &pQueue->AllocLock), rc);
|
|---|
| 1668 | }
|
|---|
| 1669 |
|
|---|
| 1670 | /* Scan the array for free timers. */
|
|---|
| 1671 | pTimer = NULL;
|
|---|
| 1672 | PTMTIMER const paTimers = pQueue->paTimers;
|
|---|
| 1673 | uint32_t const cTimersAlloc = pQueue->cTimersAlloc;
|
|---|
| 1674 | uint32_t idxTimer = pQueue->idxFreeHint;
|
|---|
| 1675 | for (uint32_t iScan = 0; iScan < 2; iScan++)
|
|---|
| 1676 | {
|
|---|
| 1677 | while (idxTimer < cTimersAlloc)
|
|---|
| 1678 | {
|
|---|
| 1679 | if (paTimers[idxTimer].enmState == TMTIMERSTATE_FREE)
|
|---|
| 1680 | {
|
|---|
| 1681 | pTimer = &paTimers[idxTimer];
|
|---|
| 1682 | pQueue->idxFreeHint = idxTimer + 1;
|
|---|
| 1683 | break;
|
|---|
| 1684 | }
|
|---|
| 1685 | idxTimer++;
|
|---|
| 1686 | }
|
|---|
| 1687 | if (pTimer != NULL)
|
|---|
| 1688 | break;
|
|---|
| 1689 | idxTimer = 1;
|
|---|
| 1690 | }
|
|---|
| 1691 | AssertLogRelMsgReturnStmt(pTimer != NULL, ("cTimersFree=%u cTimersAlloc=%u enmClock=%s\n", pQueue->cTimersFree,
|
|---|
| 1692 | pQueue->cTimersAlloc, pQueue->szName),
|
|---|
| 1693 | PDMCritSectRwLeaveExcl(pVM, &pQueue->AllocLock), VERR_INTERNAL_ERROR_3);
|
|---|
| 1694 | pQueue->cTimersFree -= 1;
|
|---|
| 1695 |
|
|---|
| 1696 | /*
|
|---|
| 1697 | * Initialize it.
|
|---|
| 1698 | */
|
|---|
| 1699 | Assert(idxTimer != 0);
|
|---|
| 1700 | Assert(idxTimer <= TMTIMERHANDLE_TIMER_IDX_MASK);
|
|---|
| 1701 | pTimer->hSelf = idxTimer
|
|---|
| 1702 | | ((uintptr_t)(pQueue - &pVM->tm.s.aTimerQueues[0]) << TMTIMERHANDLE_QUEUE_IDX_SHIFT);
|
|---|
| 1703 | Assert(!(pTimer->hSelf & TMTIMERHANDLE_RANDOM_MASK));
|
|---|
| 1704 | pTimer->hSelf |= (RTRandU64() & TMTIMERHANDLE_RANDOM_MASK);
|
|---|
| 1705 |
|
|---|
| 1706 | pTimer->u64Expire = 0;
|
|---|
| 1707 | pTimer->enmState = TMTIMERSTATE_STOPPED;
|
|---|
| 1708 | pTimer->idxScheduleNext = UINT32_MAX;
|
|---|
| 1709 | pTimer->idxNext = UINT32_MAX;
|
|---|
| 1710 | pTimer->idxPrev = UINT32_MAX;
|
|---|
| 1711 | pTimer->fFlags = fFlags;
|
|---|
| 1712 | pTimer->uHzHint = 0;
|
|---|
| 1713 | pTimer->pvUser = NULL;
|
|---|
| 1714 | pTimer->pCritSect = NULL;
|
|---|
| 1715 | memcpy(pTimer->szName, pszName, cchName);
|
|---|
| 1716 | pTimer->szName[cchName] = '\0';
|
|---|
| 1717 |
|
|---|
| 1718 | #ifdef VBOX_STRICT
|
|---|
| 1719 | tmTimerQueuesSanityChecks(pVM, "tmR3TimerCreate");
|
|---|
| 1720 | #endif
|
|---|
| 1721 |
|
|---|
| 1722 | PDMCritSectRwLeaveExcl(pVM, &pQueue->AllocLock);
|
|---|
| 1723 |
|
|---|
| 1724 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1725 | /*
|
|---|
| 1726 | * Only register statistics if we're passed the no-realloc point.
|
|---|
| 1727 | */
|
|---|
| 1728 | if (pQueue->fCannotGrow)
|
|---|
| 1729 | tmR3TimerRegisterStats(pVM, pQueue, pTimer);
|
|---|
| 1730 | #endif
|
|---|
| 1731 |
|
|---|
| 1732 | *ppTimer = pTimer;
|
|---|
| 1733 | return VINF_SUCCESS;
|
|---|
| 1734 | }
|
|---|
| 1735 |
|
|---|
| 1736 |
|
|---|
| 1737 | /**
|
|---|
| 1738 | * Creates a device timer.
|
|---|
| 1739 | *
|
|---|
| 1740 | * @returns VBox status code.
|
|---|
| 1741 | * @param pVM The cross context VM structure.
|
|---|
| 1742 | * @param pDevIns Device instance.
|
|---|
| 1743 | * @param enmClock The clock to use on this timer.
|
|---|
| 1744 | * @param pfnCallback Callback function.
|
|---|
| 1745 | * @param pvUser The user argument to the callback.
|
|---|
| 1746 | * @param fFlags Timer creation flags, see grp_tm_timer_flags.
|
|---|
| 1747 | * @param pszName Timer name (will be copied). Max 31 chars.
|
|---|
| 1748 | * @param phTimer Where to store the timer handle on success.
|
|---|
| 1749 | */
|
|---|
| 1750 | VMM_INT_DECL(int) TMR3TimerCreateDevice(PVM pVM, PPDMDEVINS pDevIns, TMCLOCK enmClock,
|
|---|
| 1751 | PFNTMTIMERDEV pfnCallback, void *pvUser,
|
|---|
| 1752 | uint32_t fFlags, const char *pszName, PTMTIMERHANDLE phTimer)
|
|---|
| 1753 | {
|
|---|
| 1754 | AssertReturn(!(fFlags & ~(TMTIMER_FLAGS_NO_CRIT_SECT | TMTIMER_FLAGS_RING0 | TMTIMER_FLAGS_NO_RING0)),
|
|---|
| 1755 | VERR_INVALID_FLAGS);
|
|---|
| 1756 |
|
|---|
| 1757 | /*
|
|---|
| 1758 | * Allocate and init stuff.
|
|---|
| 1759 | */
|
|---|
| 1760 | PTMTIMER pTimer;
|
|---|
| 1761 | int rc = tmr3TimerCreate(pVM, enmClock, fFlags, pszName, &pTimer);
|
|---|
| 1762 | if (RT_SUCCESS(rc))
|
|---|
| 1763 | {
|
|---|
| 1764 | pTimer->enmType = TMTIMERTYPE_DEV;
|
|---|
| 1765 | pTimer->u.Dev.pfnTimer = pfnCallback;
|
|---|
| 1766 | pTimer->u.Dev.pDevIns = pDevIns;
|
|---|
| 1767 | pTimer->pvUser = pvUser;
|
|---|
| 1768 | if (!(fFlags & TMTIMER_FLAGS_NO_CRIT_SECT))
|
|---|
| 1769 | pTimer->pCritSect = PDMR3DevGetCritSect(pVM, pDevIns);
|
|---|
| 1770 | *phTimer = pTimer->hSelf;
|
|---|
| 1771 | Log(("TM: Created device timer %p clock %d callback %p '%s'\n", phTimer, enmClock, pfnCallback, pszName));
|
|---|
| 1772 | }
|
|---|
| 1773 |
|
|---|
| 1774 | return rc;
|
|---|
| 1775 | }
|
|---|
| 1776 |
|
|---|
| 1777 |
|
|---|
| 1778 |
|
|---|
| 1779 |
|
|---|
| 1780 | /**
|
|---|
| 1781 | * Creates a USB device timer.
|
|---|
| 1782 | *
|
|---|
| 1783 | * @returns VBox status code.
|
|---|
| 1784 | * @param pVM The cross context VM structure.
|
|---|
| 1785 | * @param pUsbIns The USB device instance.
|
|---|
| 1786 | * @param enmClock The clock to use on this timer.
|
|---|
| 1787 | * @param pfnCallback Callback function.
|
|---|
| 1788 | * @param pvUser The user argument to the callback.
|
|---|
| 1789 | * @param fFlags Timer creation flags, see grp_tm_timer_flags.
|
|---|
| 1790 | * @param pszName Timer name (will be copied). Max 31 chars.
|
|---|
| 1791 | * @param phTimer Where to store the timer handle on success.
|
|---|
| 1792 | */
|
|---|
| 1793 | VMM_INT_DECL(int) TMR3TimerCreateUsb(PVM pVM, PPDMUSBINS pUsbIns, TMCLOCK enmClock,
|
|---|
| 1794 | PFNTMTIMERUSB pfnCallback, void *pvUser,
|
|---|
| 1795 | uint32_t fFlags, const char *pszName, PTMTIMERHANDLE phTimer)
|
|---|
| 1796 | {
|
|---|
| 1797 | AssertReturn(!(fFlags & ~(TMTIMER_FLAGS_NO_CRIT_SECT | TMTIMER_FLAGS_NO_RING0)), VERR_INVALID_PARAMETER);
|
|---|
| 1798 |
|
|---|
| 1799 | /*
|
|---|
| 1800 | * Allocate and init stuff.
|
|---|
| 1801 | */
|
|---|
| 1802 | PTMTIMER pTimer;
|
|---|
| 1803 | int rc = tmr3TimerCreate(pVM, enmClock, fFlags, pszName, &pTimer);
|
|---|
| 1804 | if (RT_SUCCESS(rc))
|
|---|
| 1805 | {
|
|---|
| 1806 | pTimer->enmType = TMTIMERTYPE_USB;
|
|---|
| 1807 | pTimer->u.Usb.pfnTimer = pfnCallback;
|
|---|
| 1808 | pTimer->u.Usb.pUsbIns = pUsbIns;
|
|---|
| 1809 | pTimer->pvUser = pvUser;
|
|---|
| 1810 | //if (!(fFlags & TMTIMER_FLAGS_NO_CRIT_SECT))
|
|---|
| 1811 | //{
|
|---|
| 1812 | // if (pDevIns->pCritSectR3)
|
|---|
| 1813 | // pTimer->pCritSect = pUsbIns->pCritSectR3;
|
|---|
| 1814 | // else
|
|---|
| 1815 | // pTimer->pCritSect = IOMR3GetCritSect(pVM);
|
|---|
| 1816 | //}
|
|---|
| 1817 | *phTimer = pTimer->hSelf;
|
|---|
| 1818 | Log(("TM: Created USB device timer %p clock %d callback %p '%s'\n", *phTimer, enmClock, pfnCallback, pszName));
|
|---|
| 1819 | }
|
|---|
| 1820 |
|
|---|
| 1821 | return rc;
|
|---|
| 1822 | }
|
|---|
| 1823 |
|
|---|
| 1824 |
|
|---|
| 1825 | /**
|
|---|
| 1826 | * Creates a driver timer.
|
|---|
| 1827 | *
|
|---|
| 1828 | * @returns VBox status code.
|
|---|
| 1829 | * @param pVM The cross context VM structure.
|
|---|
| 1830 | * @param pDrvIns Driver instance.
|
|---|
| 1831 | * @param enmClock The clock to use on this timer.
|
|---|
| 1832 | * @param pfnCallback Callback function.
|
|---|
| 1833 | * @param pvUser The user argument to the callback.
|
|---|
| 1834 | * @param fFlags Timer creation flags, see grp_tm_timer_flags.
|
|---|
| 1835 | * @param pszName Timer name (will be copied). Max 31 chars.
|
|---|
| 1836 | * @param phTimer Where to store the timer handle on success.
|
|---|
| 1837 | */
|
|---|
| 1838 | VMM_INT_DECL(int) TMR3TimerCreateDriver(PVM pVM, PPDMDRVINS pDrvIns, TMCLOCK enmClock, PFNTMTIMERDRV pfnCallback, void *pvUser,
|
|---|
| 1839 | uint32_t fFlags, const char *pszName, PTMTIMERHANDLE phTimer)
|
|---|
| 1840 | {
|
|---|
| 1841 | AssertReturn(!(fFlags & ~(TMTIMER_FLAGS_NO_CRIT_SECT | TMTIMER_FLAGS_RING0 | TMTIMER_FLAGS_NO_RING0)),
|
|---|
| 1842 | VERR_INVALID_FLAGS);
|
|---|
| 1843 |
|
|---|
| 1844 | /*
|
|---|
| 1845 | * Allocate and init stuff.
|
|---|
| 1846 | */
|
|---|
| 1847 | PTMTIMER pTimer;
|
|---|
| 1848 | int rc = tmr3TimerCreate(pVM, enmClock, fFlags, pszName, &pTimer);
|
|---|
| 1849 | if (RT_SUCCESS(rc))
|
|---|
| 1850 | {
|
|---|
| 1851 | pTimer->enmType = TMTIMERTYPE_DRV;
|
|---|
| 1852 | pTimer->u.Drv.pfnTimer = pfnCallback;
|
|---|
| 1853 | pTimer->u.Drv.pDrvIns = pDrvIns;
|
|---|
| 1854 | pTimer->pvUser = pvUser;
|
|---|
| 1855 | *phTimer = pTimer->hSelf;
|
|---|
| 1856 | Log(("TM: Created device timer %p clock %d callback %p '%s'\n", *phTimer, enmClock, pfnCallback, pszName));
|
|---|
| 1857 | }
|
|---|
| 1858 |
|
|---|
| 1859 | return rc;
|
|---|
| 1860 | }
|
|---|
| 1861 |
|
|---|
| 1862 |
|
|---|
| 1863 | /**
|
|---|
| 1864 | * Creates an internal timer.
|
|---|
| 1865 | *
|
|---|
| 1866 | * @returns VBox status code.
|
|---|
| 1867 | * @param pVM The cross context VM structure.
|
|---|
| 1868 | * @param enmClock The clock to use on this timer.
|
|---|
| 1869 | * @param pfnCallback Callback function.
|
|---|
| 1870 | * @param pvUser User argument to be passed to the callback.
|
|---|
| 1871 | * @param fFlags Timer creation flags, see grp_tm_timer_flags.
|
|---|
| 1872 | * @param pszName Timer name (will be copied). Max 31 chars.
|
|---|
| 1873 | * @param phTimer Where to store the timer handle on success.
|
|---|
| 1874 | */
|
|---|
| 1875 | VMMR3DECL(int) TMR3TimerCreate(PVM pVM, TMCLOCK enmClock, PFNTMTIMERINT pfnCallback, void *pvUser,
|
|---|
| 1876 | uint32_t fFlags, const char *pszName, PTMTIMERHANDLE phTimer)
|
|---|
| 1877 | {
|
|---|
| 1878 | AssertReturn(fFlags & (TMTIMER_FLAGS_RING0 | TMTIMER_FLAGS_NO_RING0), VERR_INVALID_FLAGS);
|
|---|
| 1879 | AssertReturn((fFlags & (TMTIMER_FLAGS_RING0 | TMTIMER_FLAGS_NO_RING0)) != (TMTIMER_FLAGS_RING0 | TMTIMER_FLAGS_NO_RING0),
|
|---|
| 1880 | VERR_INVALID_FLAGS);
|
|---|
| 1881 |
|
|---|
| 1882 | /*
|
|---|
| 1883 | * Allocate and init stuff.
|
|---|
| 1884 | */
|
|---|
| 1885 | PTMTIMER pTimer;
|
|---|
| 1886 | int rc = tmr3TimerCreate(pVM, enmClock, fFlags, pszName, &pTimer);
|
|---|
| 1887 | if (RT_SUCCESS(rc))
|
|---|
| 1888 | {
|
|---|
| 1889 | pTimer->enmType = TMTIMERTYPE_INTERNAL;
|
|---|
| 1890 | pTimer->u.Internal.pfnTimer = pfnCallback;
|
|---|
| 1891 | pTimer->pvUser = pvUser;
|
|---|
| 1892 | *phTimer = pTimer->hSelf;
|
|---|
| 1893 | Log(("TM: Created internal timer %p clock %d callback %p '%s'\n", pTimer, enmClock, pfnCallback, pszName));
|
|---|
| 1894 | }
|
|---|
| 1895 |
|
|---|
| 1896 | return rc;
|
|---|
| 1897 | }
|
|---|
| 1898 |
|
|---|
| 1899 |
|
|---|
| 1900 | /**
|
|---|
| 1901 | * Destroy a timer
|
|---|
| 1902 | *
|
|---|
| 1903 | * @returns VBox status code.
|
|---|
| 1904 | * @param pVM The cross context VM structure.
|
|---|
| 1905 | * @param pQueue The queue the timer is on.
|
|---|
| 1906 | * @param pTimer Timer handle as returned by one of the create functions.
|
|---|
| 1907 | */
|
|---|
| 1908 | static int tmR3TimerDestroy(PVMCC pVM, PTMTIMERQUEUE pQueue, PTMTIMER pTimer)
|
|---|
| 1909 | {
|
|---|
| 1910 | bool fActive = false;
|
|---|
| 1911 | bool fPending = false;
|
|---|
| 1912 |
|
|---|
| 1913 | AssertMsg( !pTimer->pCritSect
|
|---|
| 1914 | || VMR3GetState(pVM) != VMSTATE_RUNNING
|
|---|
| 1915 | || PDMCritSectIsOwner(pVM, pTimer->pCritSect), ("%s\n", pTimer->szName));
|
|---|
| 1916 |
|
|---|
| 1917 | /*
|
|---|
| 1918 | * The rest of the game happens behind the lock, just
|
|---|
| 1919 | * like create does. All the work is done here.
|
|---|
| 1920 | */
|
|---|
| 1921 | PDMCritSectRwEnterExcl(pVM, &pQueue->AllocLock, VERR_IGNORED);
|
|---|
| 1922 | PDMCritSectEnter(pVM, &pQueue->TimerLock, VERR_IGNORED);
|
|---|
| 1923 |
|
|---|
| 1924 | for (int cRetries = 1000;; cRetries--)
|
|---|
| 1925 | {
|
|---|
| 1926 | /*
|
|---|
| 1927 | * Change to the DESTROY state.
|
|---|
| 1928 | */
|
|---|
| 1929 | TMTIMERSTATE const enmState = pTimer->enmState;
|
|---|
| 1930 | Log2(("TMTimerDestroy: %p:{.enmState=%s, .szName='%s'} cRetries=%d\n",
|
|---|
| 1931 | pTimer, tmTimerState(enmState), pTimer->szName, cRetries));
|
|---|
| 1932 | switch (enmState)
|
|---|
| 1933 | {
|
|---|
| 1934 | case TMTIMERSTATE_STOPPED:
|
|---|
| 1935 | case TMTIMERSTATE_EXPIRED_DELIVER:
|
|---|
| 1936 | break;
|
|---|
| 1937 |
|
|---|
| 1938 | case TMTIMERSTATE_ACTIVE:
|
|---|
| 1939 | fActive = true;
|
|---|
| 1940 | break;
|
|---|
| 1941 |
|
|---|
| 1942 | case TMTIMERSTATE_PENDING_STOP:
|
|---|
| 1943 | case TMTIMERSTATE_PENDING_STOP_SCHEDULE:
|
|---|
| 1944 | case TMTIMERSTATE_PENDING_RESCHEDULE:
|
|---|
| 1945 | fActive = true;
|
|---|
| 1946 | fPending = true;
|
|---|
| 1947 | break;
|
|---|
| 1948 |
|
|---|
| 1949 | case TMTIMERSTATE_PENDING_SCHEDULE:
|
|---|
| 1950 | fPending = true;
|
|---|
| 1951 | break;
|
|---|
| 1952 |
|
|---|
| 1953 | /*
|
|---|
| 1954 | * This shouldn't happen as the caller should make sure there are no races.
|
|---|
| 1955 | */
|
|---|
| 1956 | case TMTIMERSTATE_EXPIRED_GET_UNLINK:
|
|---|
| 1957 | case TMTIMERSTATE_PENDING_SCHEDULE_SET_EXPIRE:
|
|---|
| 1958 | case TMTIMERSTATE_PENDING_RESCHEDULE_SET_EXPIRE:
|
|---|
| 1959 | AssertMsgFailed(("%p:.enmState=%s %s\n", pTimer, tmTimerState(enmState), pTimer->szName));
|
|---|
| 1960 | PDMCritSectLeave(pVM, &pQueue->TimerLock);
|
|---|
| 1961 | PDMCritSectRwLeaveExcl(pVM, &pQueue->AllocLock);
|
|---|
| 1962 |
|
|---|
| 1963 | AssertMsgReturn(cRetries > 0, ("Failed waiting for stable state. state=%d (%s)\n", pTimer->enmState, pTimer->szName),
|
|---|
| 1964 | VERR_TM_UNSTABLE_STATE);
|
|---|
| 1965 | if (!RTThreadYield())
|
|---|
| 1966 | RTThreadSleep(1);
|
|---|
| 1967 |
|
|---|
| 1968 | PDMCritSectRwEnterExcl(pVM, &pQueue->AllocLock, VERR_IGNORED);
|
|---|
| 1969 | PDMCritSectEnter(pVM, &pQueue->TimerLock, VERR_IGNORED);
|
|---|
| 1970 | continue;
|
|---|
| 1971 |
|
|---|
| 1972 | /*
|
|---|
| 1973 | * Invalid states.
|
|---|
| 1974 | */
|
|---|
| 1975 | case TMTIMERSTATE_FREE:
|
|---|
| 1976 | case TMTIMERSTATE_DESTROY:
|
|---|
| 1977 | PDMCritSectLeave(pVM, &pQueue->TimerLock);
|
|---|
| 1978 | PDMCritSectRwLeaveExcl(pVM, &pQueue->AllocLock);
|
|---|
| 1979 | AssertLogRelMsgFailedReturn(("pTimer=%p %s\n", pTimer, tmTimerState(enmState)), VERR_TM_INVALID_STATE);
|
|---|
| 1980 |
|
|---|
| 1981 | default:
|
|---|
| 1982 | AssertMsgFailed(("Unknown timer state %d (%s)\n", enmState, pTimer->szName));
|
|---|
| 1983 | PDMCritSectLeave(pVM, &pQueue->TimerLock);
|
|---|
| 1984 | PDMCritSectRwLeaveExcl(pVM, &pQueue->AllocLock);
|
|---|
| 1985 | return VERR_TM_UNKNOWN_STATE;
|
|---|
| 1986 | }
|
|---|
| 1987 |
|
|---|
| 1988 | /*
|
|---|
| 1989 | * Try switch to the destroy state.
|
|---|
| 1990 | * This should always succeed as the caller should make sure there are no race.
|
|---|
| 1991 | */
|
|---|
| 1992 | bool fRc;
|
|---|
| 1993 | TM_TRY_SET_STATE(pTimer, TMTIMERSTATE_DESTROY, enmState, fRc);
|
|---|
| 1994 | if (fRc)
|
|---|
| 1995 | break;
|
|---|
| 1996 | AssertMsgFailed(("%p:.enmState=%s %s\n", pTimer, tmTimerState(enmState), pTimer->szName));
|
|---|
| 1997 | PDMCritSectLeave(pVM, &pQueue->TimerLock);
|
|---|
| 1998 | PDMCritSectRwLeaveExcl(pVM, &pQueue->AllocLock);
|
|---|
| 1999 |
|
|---|
| 2000 | AssertMsgReturn(cRetries > 0, ("Failed waiting for stable state. state=%d (%s)\n", pTimer->enmState, pTimer->szName),
|
|---|
| 2001 | VERR_TM_UNSTABLE_STATE);
|
|---|
| 2002 |
|
|---|
| 2003 | PDMCritSectRwEnterExcl(pVM, &pQueue->AllocLock, VERR_IGNORED);
|
|---|
| 2004 | PDMCritSectEnter(pVM, &pQueue->TimerLock, VERR_IGNORED);
|
|---|
| 2005 | }
|
|---|
| 2006 |
|
|---|
| 2007 | /*
|
|---|
| 2008 | * Unlink from the active list.
|
|---|
| 2009 | */
|
|---|
| 2010 | if (fActive)
|
|---|
| 2011 | {
|
|---|
| 2012 | const PTMTIMER pPrev = tmTimerGetPrev(pQueue, pTimer);
|
|---|
| 2013 | const PTMTIMER pNext = tmTimerGetNext(pQueue, pTimer);
|
|---|
| 2014 | if (pPrev)
|
|---|
| 2015 | tmTimerSetNext(pQueue, pPrev, pNext);
|
|---|
| 2016 | else
|
|---|
| 2017 | {
|
|---|
| 2018 | tmTimerQueueSetHead(pQueue, pQueue, pNext);
|
|---|
| 2019 | pQueue->u64Expire = pNext ? pNext->u64Expire : INT64_MAX;
|
|---|
| 2020 | }
|
|---|
| 2021 | if (pNext)
|
|---|
| 2022 | tmTimerSetPrev(pQueue, pNext, pPrev);
|
|---|
| 2023 | pTimer->idxNext = UINT32_MAX;
|
|---|
| 2024 | pTimer->idxPrev = UINT32_MAX;
|
|---|
| 2025 | }
|
|---|
| 2026 |
|
|---|
| 2027 | /*
|
|---|
| 2028 | * Unlink from the schedule list by running it.
|
|---|
| 2029 | */
|
|---|
| 2030 | if (fPending)
|
|---|
| 2031 | {
|
|---|
| 2032 | Log3(("TMR3TimerDestroy: tmTimerQueueSchedule\n"));
|
|---|
| 2033 | STAM_PROFILE_START(&pVM->tm.s.CTX_SUFF_Z(StatScheduleOne), a);
|
|---|
| 2034 | Assert(pQueue->idxSchedule < pQueue->cTimersAlloc);
|
|---|
| 2035 | tmTimerQueueSchedule(pVM, pQueue, pQueue);
|
|---|
| 2036 | STAM_PROFILE_STOP(&pVM->tm.s.CTX_SUFF_Z(StatScheduleOne), a);
|
|---|
| 2037 | }
|
|---|
| 2038 |
|
|---|
| 2039 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 2040 | /*
|
|---|
| 2041 | * Deregister statistics.
|
|---|
| 2042 | */
|
|---|
| 2043 | tmR3TimerDeregisterStats(pVM, pTimer);
|
|---|
| 2044 | #endif
|
|---|
| 2045 |
|
|---|
| 2046 | /*
|
|---|
| 2047 | * Change it to free state and update the queue accordingly.
|
|---|
| 2048 | */
|
|---|
| 2049 | Assert(pTimer->idxNext == UINT32_MAX); Assert(pTimer->idxPrev == UINT32_MAX); Assert(pTimer->idxScheduleNext == UINT32_MAX);
|
|---|
| 2050 |
|
|---|
| 2051 | TM_SET_STATE(pTimer, TMTIMERSTATE_FREE);
|
|---|
| 2052 |
|
|---|
| 2053 | pQueue->cTimersFree += 1;
|
|---|
| 2054 | uint32_t idxTimer = (uint32_t)(pTimer - pQueue->paTimers);
|
|---|
| 2055 | if (idxTimer < pQueue->idxFreeHint)
|
|---|
| 2056 | pQueue->idxFreeHint = idxTimer;
|
|---|
| 2057 |
|
|---|
| 2058 | #ifdef VBOX_STRICT
|
|---|
| 2059 | tmTimerQueuesSanityChecks(pVM, "TMR3TimerDestroy");
|
|---|
| 2060 | #endif
|
|---|
| 2061 | PDMCritSectLeave(pVM, &pQueue->TimerLock);
|
|---|
| 2062 | PDMCritSectRwLeaveExcl(pVM, &pQueue->AllocLock);
|
|---|
| 2063 | return VINF_SUCCESS;
|
|---|
| 2064 | }
|
|---|
| 2065 |
|
|---|
| 2066 |
|
|---|
| 2067 | /**
|
|---|
| 2068 | * Destroy a timer
|
|---|
| 2069 | *
|
|---|
| 2070 | * @returns VBox status code.
|
|---|
| 2071 | * @param pVM The cross context VM structure.
|
|---|
| 2072 | * @param hTimer Timer handle as returned by one of the create functions.
|
|---|
| 2073 | */
|
|---|
| 2074 | VMMR3DECL(int) TMR3TimerDestroy(PVM pVM, TMTIMERHANDLE hTimer)
|
|---|
| 2075 | {
|
|---|
| 2076 | /* We ignore NILs here. */
|
|---|
| 2077 | if (hTimer == NIL_TMTIMERHANDLE)
|
|---|
| 2078 | return VINF_SUCCESS;
|
|---|
| 2079 | TMTIMER_HANDLE_TO_VARS_RETURN(pVM, hTimer); /* => pTimer, pQueueCC, pQueue, idxTimer, idxQueue */
|
|---|
| 2080 | return tmR3TimerDestroy(pVM, pQueue, pTimer);
|
|---|
| 2081 | }
|
|---|
| 2082 |
|
|---|
| 2083 |
|
|---|
| 2084 | /**
|
|---|
| 2085 | * Destroy all timers owned by a device.
|
|---|
| 2086 | *
|
|---|
| 2087 | * @returns VBox status code.
|
|---|
| 2088 | * @param pVM The cross context VM structure.
|
|---|
| 2089 | * @param pDevIns Device which timers should be destroyed.
|
|---|
| 2090 | */
|
|---|
| 2091 | VMM_INT_DECL(int) TMR3TimerDestroyDevice(PVM pVM, PPDMDEVINS pDevIns)
|
|---|
| 2092 | {
|
|---|
| 2093 | LogFlow(("TMR3TimerDestroyDevice: pDevIns=%p\n", pDevIns));
|
|---|
| 2094 | if (!pDevIns)
|
|---|
| 2095 | return VERR_INVALID_PARAMETER;
|
|---|
| 2096 |
|
|---|
| 2097 | for (uint32_t idxQueue = 0; idxQueue < RT_ELEMENTS(pVM->tm.s.aTimerQueues); idxQueue++)
|
|---|
| 2098 | {
|
|---|
| 2099 | PTMTIMERQUEUE pQueue = &pVM->tm.s.aTimerQueues[idxQueue];
|
|---|
| 2100 | PDMCritSectRwEnterShared(pVM, &pQueue->AllocLock, VERR_IGNORED);
|
|---|
| 2101 | uint32_t idxTimer = pQueue->cTimersAlloc;
|
|---|
| 2102 | while (idxTimer-- > 0)
|
|---|
| 2103 | {
|
|---|
| 2104 | PTMTIMER pTimer = &pQueue->paTimers[idxTimer];
|
|---|
| 2105 | if ( pTimer->enmType == TMTIMERTYPE_DEV
|
|---|
| 2106 | && pTimer->u.Dev.pDevIns == pDevIns
|
|---|
| 2107 | && pTimer->enmState < TMTIMERSTATE_DESTROY)
|
|---|
| 2108 | {
|
|---|
| 2109 | PDMCritSectRwLeaveShared(pVM, &pQueue->AllocLock);
|
|---|
| 2110 |
|
|---|
| 2111 | int rc = tmR3TimerDestroy(pVM, pQueue, pTimer);
|
|---|
| 2112 | AssertRC(rc);
|
|---|
| 2113 |
|
|---|
| 2114 | PDMCritSectRwEnterShared(pVM, &pQueue->AllocLock, VERR_IGNORED);
|
|---|
| 2115 | }
|
|---|
| 2116 | }
|
|---|
| 2117 | PDMCritSectRwLeaveShared(pVM, &pQueue->AllocLock);
|
|---|
| 2118 | }
|
|---|
| 2119 |
|
|---|
| 2120 | LogFlow(("TMR3TimerDestroyDevice: returns VINF_SUCCESS\n"));
|
|---|
| 2121 | return VINF_SUCCESS;
|
|---|
| 2122 | }
|
|---|
| 2123 |
|
|---|
| 2124 |
|
|---|
| 2125 | /**
|
|---|
| 2126 | * Destroy all timers owned by a USB device.
|
|---|
| 2127 | *
|
|---|
| 2128 | * @returns VBox status code.
|
|---|
| 2129 | * @param pVM The cross context VM structure.
|
|---|
| 2130 | * @param pUsbIns USB device which timers should be destroyed.
|
|---|
| 2131 | */
|
|---|
| 2132 | VMM_INT_DECL(int) TMR3TimerDestroyUsb(PVM pVM, PPDMUSBINS pUsbIns)
|
|---|
| 2133 | {
|
|---|
| 2134 | LogFlow(("TMR3TimerDestroyUsb: pUsbIns=%p\n", pUsbIns));
|
|---|
| 2135 | if (!pUsbIns)
|
|---|
| 2136 | return VERR_INVALID_PARAMETER;
|
|---|
| 2137 |
|
|---|
| 2138 | for (uint32_t idxQueue = 0; idxQueue < RT_ELEMENTS(pVM->tm.s.aTimerQueues); idxQueue++)
|
|---|
| 2139 | {
|
|---|
| 2140 | PTMTIMERQUEUE pQueue = &pVM->tm.s.aTimerQueues[idxQueue];
|
|---|
| 2141 | PDMCritSectRwEnterShared(pVM, &pQueue->AllocLock, VERR_IGNORED);
|
|---|
| 2142 | uint32_t idxTimer = pQueue->cTimersAlloc;
|
|---|
| 2143 | while (idxTimer-- > 0)
|
|---|
| 2144 | {
|
|---|
| 2145 | PTMTIMER pTimer = &pQueue->paTimers[idxTimer];
|
|---|
| 2146 | if ( pTimer->enmType == TMTIMERTYPE_USB
|
|---|
| 2147 | && pTimer->u.Usb.pUsbIns == pUsbIns
|
|---|
| 2148 | && pTimer->enmState < TMTIMERSTATE_DESTROY)
|
|---|
| 2149 | {
|
|---|
| 2150 | PDMCritSectRwLeaveShared(pVM, &pQueue->AllocLock);
|
|---|
| 2151 |
|
|---|
| 2152 | int rc = tmR3TimerDestroy(pVM, pQueue, pTimer);
|
|---|
| 2153 | AssertRC(rc);
|
|---|
| 2154 |
|
|---|
| 2155 | PDMCritSectRwEnterShared(pVM, &pQueue->AllocLock, VERR_IGNORED);
|
|---|
| 2156 | }
|
|---|
| 2157 | }
|
|---|
| 2158 | PDMCritSectRwLeaveShared(pVM, &pQueue->AllocLock);
|
|---|
| 2159 | }
|
|---|
| 2160 |
|
|---|
| 2161 | LogFlow(("TMR3TimerDestroyUsb: returns VINF_SUCCESS\n"));
|
|---|
| 2162 | return VINF_SUCCESS;
|
|---|
| 2163 | }
|
|---|
| 2164 |
|
|---|
| 2165 |
|
|---|
| 2166 | /**
|
|---|
| 2167 | * Destroy all timers owned by a driver.
|
|---|
| 2168 | *
|
|---|
| 2169 | * @returns VBox status code.
|
|---|
| 2170 | * @param pVM The cross context VM structure.
|
|---|
| 2171 | * @param pDrvIns Driver which timers should be destroyed.
|
|---|
| 2172 | */
|
|---|
| 2173 | VMM_INT_DECL(int) TMR3TimerDestroyDriver(PVM pVM, PPDMDRVINS pDrvIns)
|
|---|
| 2174 | {
|
|---|
| 2175 | LogFlow(("TMR3TimerDestroyDriver: pDrvIns=%p\n", pDrvIns));
|
|---|
| 2176 | if (!pDrvIns)
|
|---|
| 2177 | return VERR_INVALID_PARAMETER;
|
|---|
| 2178 |
|
|---|
| 2179 | for (uint32_t idxQueue = 0; idxQueue < RT_ELEMENTS(pVM->tm.s.aTimerQueues); idxQueue++)
|
|---|
| 2180 | {
|
|---|
| 2181 | PTMTIMERQUEUE pQueue = &pVM->tm.s.aTimerQueues[idxQueue];
|
|---|
| 2182 | PDMCritSectRwEnterShared(pVM, &pQueue->AllocLock, VERR_IGNORED);
|
|---|
| 2183 | uint32_t idxTimer = pQueue->cTimersAlloc;
|
|---|
| 2184 | while (idxTimer-- > 0)
|
|---|
| 2185 | {
|
|---|
| 2186 | PTMTIMER pTimer = &pQueue->paTimers[idxTimer];
|
|---|
| 2187 | if ( pTimer->enmType == TMTIMERTYPE_DRV
|
|---|
| 2188 | && pTimer->u.Drv.pDrvIns == pDrvIns
|
|---|
| 2189 | && pTimer->enmState < TMTIMERSTATE_DESTROY)
|
|---|
| 2190 | {
|
|---|
| 2191 | PDMCritSectRwLeaveShared(pVM, &pQueue->AllocLock);
|
|---|
| 2192 |
|
|---|
| 2193 | int rc = tmR3TimerDestroy(pVM, pQueue, pTimer);
|
|---|
| 2194 | AssertRC(rc);
|
|---|
| 2195 |
|
|---|
| 2196 | PDMCritSectRwEnterShared(pVM, &pQueue->AllocLock, VERR_IGNORED);
|
|---|
| 2197 | }
|
|---|
| 2198 | }
|
|---|
| 2199 | PDMCritSectRwLeaveShared(pVM, &pQueue->AllocLock);
|
|---|
| 2200 | }
|
|---|
| 2201 |
|
|---|
| 2202 | LogFlow(("TMR3TimerDestroyDriver: returns VINF_SUCCESS\n"));
|
|---|
| 2203 | return VINF_SUCCESS;
|
|---|
| 2204 | }
|
|---|
| 2205 |
|
|---|
| 2206 |
|
|---|
| 2207 | /**
|
|---|
| 2208 | * Internal function for getting the clock time.
|
|---|
| 2209 | *
|
|---|
| 2210 | * @returns clock time.
|
|---|
| 2211 | * @param pVM The cross context VM structure.
|
|---|
| 2212 | * @param enmClock The clock.
|
|---|
| 2213 | */
|
|---|
| 2214 | DECLINLINE(uint64_t) tmClock(PVM pVM, TMCLOCK enmClock)
|
|---|
| 2215 | {
|
|---|
| 2216 | switch (enmClock)
|
|---|
| 2217 | {
|
|---|
| 2218 | case TMCLOCK_VIRTUAL: return TMVirtualGet(pVM);
|
|---|
| 2219 | case TMCLOCK_VIRTUAL_SYNC: return TMVirtualSyncGet(pVM);
|
|---|
| 2220 | case TMCLOCK_REAL: return TMRealGet(pVM);
|
|---|
| 2221 | case TMCLOCK_TSC: return TMCpuTickGet(pVM->apCpusR3[0] /* just take VCPU 0 */);
|
|---|
| 2222 | default:
|
|---|
| 2223 | AssertMsgFailed(("enmClock=%d\n", enmClock));
|
|---|
| 2224 | return ~(uint64_t)0;
|
|---|
| 2225 | }
|
|---|
| 2226 | }
|
|---|
| 2227 |
|
|---|
| 2228 |
|
|---|
| 2229 | /**
|
|---|
| 2230 | * Checks if the sync queue has one or more expired timers.
|
|---|
| 2231 | *
|
|---|
| 2232 | * @returns true / false.
|
|---|
| 2233 | *
|
|---|
| 2234 | * @param pVM The cross context VM structure.
|
|---|
| 2235 | * @param enmClock The queue.
|
|---|
| 2236 | */
|
|---|
| 2237 | DECLINLINE(bool) tmR3HasExpiredTimer(PVM pVM, TMCLOCK enmClock)
|
|---|
| 2238 | {
|
|---|
| 2239 | const uint64_t u64Expire = pVM->tm.s.aTimerQueues[enmClock].u64Expire;
|
|---|
| 2240 | return u64Expire != INT64_MAX && u64Expire <= tmClock(pVM, enmClock);
|
|---|
| 2241 | }
|
|---|
| 2242 |
|
|---|
| 2243 |
|
|---|
| 2244 | /**
|
|---|
| 2245 | * Checks for expired timers in all the queues.
|
|---|
| 2246 | *
|
|---|
| 2247 | * @returns true / false.
|
|---|
| 2248 | * @param pVM The cross context VM structure.
|
|---|
| 2249 | */
|
|---|
| 2250 | DECLINLINE(bool) tmR3AnyExpiredTimers(PVM pVM)
|
|---|
| 2251 | {
|
|---|
| 2252 | /*
|
|---|
| 2253 | * Combine the time calculation for the first two since we're not on EMT
|
|---|
| 2254 | * TMVirtualSyncGet only permits EMT.
|
|---|
| 2255 | */
|
|---|
| 2256 | uint64_t u64Now = TMVirtualGetNoCheck(pVM);
|
|---|
| 2257 | if (pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL].u64Expire <= u64Now)
|
|---|
| 2258 | return true;
|
|---|
| 2259 | u64Now = pVM->tm.s.fVirtualSyncTicking
|
|---|
| 2260 | ? u64Now - pVM->tm.s.offVirtualSync
|
|---|
| 2261 | : pVM->tm.s.u64VirtualSync;
|
|---|
| 2262 | if (pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL_SYNC].u64Expire <= u64Now)
|
|---|
| 2263 | return true;
|
|---|
| 2264 |
|
|---|
| 2265 | /*
|
|---|
| 2266 | * The remaining timers.
|
|---|
| 2267 | */
|
|---|
| 2268 | if (tmR3HasExpiredTimer(pVM, TMCLOCK_REAL))
|
|---|
| 2269 | return true;
|
|---|
| 2270 | if (tmR3HasExpiredTimer(pVM, TMCLOCK_TSC))
|
|---|
| 2271 | return true;
|
|---|
| 2272 | return false;
|
|---|
| 2273 | }
|
|---|
| 2274 |
|
|---|
| 2275 |
|
|---|
| 2276 | /**
|
|---|
| 2277 | * Schedule timer callback.
|
|---|
| 2278 | *
|
|---|
| 2279 | * @param pTimer Timer handle.
|
|---|
| 2280 | * @param pvUser Pointer to the VM.
|
|---|
| 2281 | * @thread Timer thread.
|
|---|
| 2282 | *
|
|---|
| 2283 | * @remark We cannot do the scheduling and queues running from a timer handler
|
|---|
| 2284 | * since it's not executing in EMT, and even if it was it would be async
|
|---|
| 2285 | * and we wouldn't know the state of the affairs.
|
|---|
| 2286 | * So, we'll just raise the timer FF and force any REM execution to exit.
|
|---|
| 2287 | */
|
|---|
| 2288 | static DECLCALLBACK(void) tmR3TimerCallback(PRTTIMER pTimer, void *pvUser, uint64_t /*iTick*/)
|
|---|
| 2289 | {
|
|---|
| 2290 | PVM pVM = (PVM)pvUser;
|
|---|
| 2291 | PVMCPU pVCpuDst = pVM->apCpusR3[pVM->tm.s.idTimerCpu];
|
|---|
| 2292 | NOREF(pTimer);
|
|---|
| 2293 |
|
|---|
| 2294 | AssertCompile(TMCLOCK_MAX == 4);
|
|---|
| 2295 | STAM_COUNTER_INC(&pVM->tm.s.StatTimerCallback);
|
|---|
| 2296 |
|
|---|
| 2297 | #ifdef DEBUG_Sander /* very annoying, keep it private. */
|
|---|
| 2298 | if (VMCPU_FF_IS_SET(pVCpuDst, VMCPU_FF_TIMER))
|
|---|
| 2299 | Log(("tmR3TimerCallback: timer event still pending!!\n"));
|
|---|
| 2300 | #endif
|
|---|
| 2301 | if ( !VMCPU_FF_IS_SET(pVCpuDst, VMCPU_FF_TIMER)
|
|---|
| 2302 | && ( pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL_SYNC].idxSchedule != UINT32_MAX /** @todo FIXME - reconsider offSchedule as a reason for running the timer queues. */
|
|---|
| 2303 | || pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL].idxSchedule != UINT32_MAX
|
|---|
| 2304 | || pVM->tm.s.aTimerQueues[TMCLOCK_REAL].idxSchedule != UINT32_MAX
|
|---|
| 2305 | || pVM->tm.s.aTimerQueues[TMCLOCK_TSC].idxSchedule != UINT32_MAX
|
|---|
| 2306 | || tmR3AnyExpiredTimers(pVM)
|
|---|
| 2307 | )
|
|---|
| 2308 | && !VMCPU_FF_IS_SET(pVCpuDst, VMCPU_FF_TIMER)
|
|---|
| 2309 | && !pVM->tm.s.fRunningQueues
|
|---|
| 2310 | )
|
|---|
| 2311 | {
|
|---|
| 2312 | Log5(("TM(%u): FF: 0 -> 1\n", __LINE__));
|
|---|
| 2313 | VMCPU_FF_SET(pVCpuDst, VMCPU_FF_TIMER);
|
|---|
| 2314 | VMR3NotifyCpuFFU(pVCpuDst->pUVCpu, VMNOTIFYFF_FLAGS_DONE_REM | VMNOTIFYFF_FLAGS_POKE);
|
|---|
| 2315 | STAM_COUNTER_INC(&pVM->tm.s.StatTimerCallbackSetFF);
|
|---|
| 2316 | }
|
|---|
| 2317 | }
|
|---|
| 2318 |
|
|---|
| 2319 |
|
|---|
| 2320 | /**
|
|---|
| 2321 | * Worker for tmR3TimerQueueDoOne that runs pending timers on the specified
|
|---|
| 2322 | * non-empty timer queue.
|
|---|
| 2323 | *
|
|---|
| 2324 | * @param pVM The cross context VM structure.
|
|---|
| 2325 | * @param pQueue The queue to run.
|
|---|
| 2326 | * @param pTimer The head timer. Caller already check that this is
|
|---|
| 2327 | * not NULL.
|
|---|
| 2328 | */
|
|---|
| 2329 | static void tmR3TimerQueueRun(PVM pVM, PTMTIMERQUEUE pQueue, PTMTIMER pTimer)
|
|---|
| 2330 | {
|
|---|
| 2331 | VM_ASSERT_EMT(pVM); /** @todo relax this */
|
|---|
| 2332 |
|
|---|
| 2333 | /*
|
|---|
| 2334 | * Run timers.
|
|---|
| 2335 | *
|
|---|
| 2336 | * We check the clock once and run all timers which are ACTIVE
|
|---|
| 2337 | * and have an expire time less or equal to the time we read.
|
|---|
| 2338 | *
|
|---|
| 2339 | * N.B. A generic unlink must be applied since other threads
|
|---|
| 2340 | * are allowed to mess with any active timer at any time.
|
|---|
| 2341 | *
|
|---|
| 2342 | * However, we only allow EMT to handle EXPIRED_PENDING
|
|---|
| 2343 | * timers, thus enabling the timer handler function to
|
|---|
| 2344 | * arm the timer again.
|
|---|
| 2345 | */
|
|---|
| 2346 | /** @todo the above 'however' is outdated. */
|
|---|
| 2347 | const uint64_t u64Now = tmClock(pVM, pQueue->enmClock);
|
|---|
| 2348 | while (pTimer->u64Expire <= u64Now)
|
|---|
| 2349 | {
|
|---|
| 2350 | PTMTIMER const pNext = tmTimerGetNext(pQueue, pTimer);
|
|---|
| 2351 | PPDMCRITSECT pCritSect = pTimer->pCritSect;
|
|---|
| 2352 | if (pCritSect)
|
|---|
| 2353 | {
|
|---|
| 2354 | STAM_PROFILE_START(&pTimer->StatCritSectEnter, Locking);
|
|---|
| 2355 | PDMCritSectEnter(pVM, pCritSect, VERR_IGNORED);
|
|---|
| 2356 | STAM_PROFILE_STOP(&pTimer->StatCritSectEnter, Locking);
|
|---|
| 2357 | }
|
|---|
| 2358 | Log2(("tmR3TimerQueueRun: %p:{.enmState=%s, .enmClock=%d, .enmType=%d, u64Expire=%llx (now=%llx) .szName='%s'}\n",
|
|---|
| 2359 | pTimer, tmTimerState(pTimer->enmState), pQueue->enmClock, pTimer->enmType, pTimer->u64Expire, u64Now, pTimer->szName));
|
|---|
| 2360 | bool fRc;
|
|---|
| 2361 | TM_TRY_SET_STATE(pTimer, TMTIMERSTATE_EXPIRED_GET_UNLINK, TMTIMERSTATE_ACTIVE, fRc);
|
|---|
| 2362 | if (fRc)
|
|---|
| 2363 | {
|
|---|
| 2364 | Assert(pTimer->idxScheduleNext == UINT32_MAX); /* this can trigger falsely */
|
|---|
| 2365 |
|
|---|
| 2366 | /* unlink */
|
|---|
| 2367 | const PTMTIMER pPrev = tmTimerGetPrev(pQueue, pTimer);
|
|---|
| 2368 | if (pPrev)
|
|---|
| 2369 | tmTimerSetNext(pQueue, pPrev, pNext);
|
|---|
| 2370 | else
|
|---|
| 2371 | {
|
|---|
| 2372 | tmTimerQueueSetHead(pQueue, pQueue, pNext);
|
|---|
| 2373 | pQueue->u64Expire = pNext ? pNext->u64Expire : INT64_MAX;
|
|---|
| 2374 | }
|
|---|
| 2375 | if (pNext)
|
|---|
| 2376 | tmTimerSetPrev(pQueue, pNext, pPrev);
|
|---|
| 2377 | pTimer->idxNext = UINT32_MAX;
|
|---|
| 2378 | pTimer->idxPrev = UINT32_MAX;
|
|---|
| 2379 |
|
|---|
| 2380 | /* fire */
|
|---|
| 2381 | TM_SET_STATE(pTimer, TMTIMERSTATE_EXPIRED_DELIVER);
|
|---|
| 2382 | STAM_PROFILE_START(&pTimer->StatTimer, PrfTimer);
|
|---|
| 2383 | switch (pTimer->enmType)
|
|---|
| 2384 | {
|
|---|
| 2385 | case TMTIMERTYPE_DEV: pTimer->u.Dev.pfnTimer(pTimer->u.Dev.pDevIns, pTimer->hSelf, pTimer->pvUser); break;
|
|---|
| 2386 | case TMTIMERTYPE_USB: pTimer->u.Usb.pfnTimer(pTimer->u.Usb.pUsbIns, pTimer->hSelf, pTimer->pvUser); break;
|
|---|
| 2387 | case TMTIMERTYPE_DRV: pTimer->u.Drv.pfnTimer(pTimer->u.Drv.pDrvIns, pTimer->hSelf, pTimer->pvUser); break;
|
|---|
| 2388 | case TMTIMERTYPE_INTERNAL: pTimer->u.Internal.pfnTimer(pVM, pTimer->hSelf, pTimer->pvUser); break;
|
|---|
| 2389 | default:
|
|---|
| 2390 | AssertMsgFailed(("Invalid timer type %d (%s)\n", pTimer->enmType, pTimer->szName));
|
|---|
| 2391 | break;
|
|---|
| 2392 | }
|
|---|
| 2393 | STAM_PROFILE_STOP(&pTimer->StatTimer, PrfTimer);
|
|---|
| 2394 |
|
|---|
| 2395 | /* change the state if it wasn't changed already in the handler. */
|
|---|
| 2396 | TM_TRY_SET_STATE(pTimer, TMTIMERSTATE_STOPPED, TMTIMERSTATE_EXPIRED_DELIVER, fRc);
|
|---|
| 2397 | Log2(("tmR3TimerQueueRun: new state %s\n", tmTimerState(pTimer->enmState)));
|
|---|
| 2398 | }
|
|---|
| 2399 | if (pCritSect)
|
|---|
| 2400 | PDMCritSectLeave(pVM, pCritSect);
|
|---|
| 2401 |
|
|---|
| 2402 | /* Advance? */
|
|---|
| 2403 | pTimer = pNext;
|
|---|
| 2404 | if (!pTimer)
|
|---|
| 2405 | break;
|
|---|
| 2406 | } /* run loop */
|
|---|
| 2407 | }
|
|---|
| 2408 |
|
|---|
| 2409 |
|
|---|
| 2410 | /**
|
|---|
| 2411 | * Service one regular timer queue.
|
|---|
| 2412 | *
|
|---|
| 2413 | * @param pVM The cross context VM structure.
|
|---|
| 2414 | * @param pQueue The queue.
|
|---|
| 2415 | */
|
|---|
| 2416 | static void tmR3TimerQueueDoOne(PVM pVM, PTMTIMERQUEUE pQueue)
|
|---|
| 2417 | {
|
|---|
| 2418 | Assert(pQueue->enmClock != TMCLOCK_VIRTUAL_SYNC);
|
|---|
| 2419 |
|
|---|
| 2420 | /*
|
|---|
| 2421 | * Only one thread should be "doing" the queue.
|
|---|
| 2422 | */
|
|---|
| 2423 | if (ASMAtomicCmpXchgBool(&pQueue->fBeingProcessed, true, false))
|
|---|
| 2424 | {
|
|---|
| 2425 | STAM_PROFILE_START(&pQueue->StatDo, s);
|
|---|
| 2426 | PDMCritSectEnter(pVM, &pQueue->TimerLock, VERR_IGNORED);
|
|---|
| 2427 |
|
|---|
| 2428 | if (pQueue->idxSchedule != UINT32_MAX)
|
|---|
| 2429 | tmTimerQueueSchedule(pVM, pQueue, pQueue);
|
|---|
| 2430 |
|
|---|
| 2431 | PTMTIMER pHead = tmTimerQueueGetHead(pQueue, pQueue);
|
|---|
| 2432 | if (pHead)
|
|---|
| 2433 | tmR3TimerQueueRun(pVM, pQueue, pHead);
|
|---|
| 2434 |
|
|---|
| 2435 | PDMCritSectLeave(pVM, &pQueue->TimerLock);
|
|---|
| 2436 | STAM_PROFILE_STOP(&pQueue->StatDo, s);
|
|---|
| 2437 | ASMAtomicWriteBool(&pQueue->fBeingProcessed, false);
|
|---|
| 2438 | }
|
|---|
| 2439 | }
|
|---|
| 2440 |
|
|---|
| 2441 |
|
|---|
| 2442 | /**
|
|---|
| 2443 | * Schedules and runs any pending times in the timer queue for the
|
|---|
| 2444 | * synchronous virtual clock.
|
|---|
| 2445 | *
|
|---|
| 2446 | * This scheduling is a bit different from the other queues as it need
|
|---|
| 2447 | * to implement the special requirements of the timer synchronous virtual
|
|---|
| 2448 | * clock, thus this 2nd queue run function.
|
|---|
| 2449 | *
|
|---|
| 2450 | * @param pVM The cross context VM structure.
|
|---|
| 2451 | *
|
|---|
| 2452 | * @remarks The caller must the Virtual Sync lock. Owning the TM lock is no
|
|---|
| 2453 | * longer important.
|
|---|
| 2454 | */
|
|---|
| 2455 | static void tmR3TimerQueueRunVirtualSync(PVM pVM)
|
|---|
| 2456 | {
|
|---|
| 2457 | PTMTIMERQUEUE const pQueue = &pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL_SYNC];
|
|---|
| 2458 | VM_ASSERT_EMT(pVM);
|
|---|
| 2459 | Assert(PDMCritSectIsOwner(pVM, &pVM->tm.s.VirtualSyncLock));
|
|---|
| 2460 |
|
|---|
| 2461 | /*
|
|---|
| 2462 | * Any timers?
|
|---|
| 2463 | */
|
|---|
| 2464 | PTMTIMER pNext = tmTimerQueueGetHead(pQueue, pQueue);
|
|---|
| 2465 | if (RT_UNLIKELY(!pNext))
|
|---|
| 2466 | {
|
|---|
| 2467 | Assert(pVM->tm.s.fVirtualSyncTicking || !pVM->tm.s.cVirtualTicking);
|
|---|
| 2468 | return;
|
|---|
| 2469 | }
|
|---|
| 2470 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncRun);
|
|---|
| 2471 |
|
|---|
| 2472 | /*
|
|---|
| 2473 | * Calculate the time frame for which we will dispatch timers.
|
|---|
| 2474 | *
|
|---|
| 2475 | * We use a time frame ranging from the current sync time (which is most likely the
|
|---|
| 2476 | * same as the head timer) and some configurable period (100000ns) up towards the
|
|---|
| 2477 | * current virtual time. This period might also need to be restricted by the catch-up
|
|---|
| 2478 | * rate so frequent calls to this function won't accelerate the time too much, however
|
|---|
| 2479 | * this will be implemented at a later point if necessary.
|
|---|
| 2480 | *
|
|---|
| 2481 | * Without this frame we would 1) having to run timers much more frequently
|
|---|
| 2482 | * and 2) lag behind at a steady rate.
|
|---|
| 2483 | */
|
|---|
| 2484 | const uint64_t u64VirtualNow = TMVirtualGetNoCheck(pVM);
|
|---|
| 2485 | uint64_t const offSyncGivenUp = pVM->tm.s.offVirtualSyncGivenUp;
|
|---|
| 2486 | uint64_t u64Now;
|
|---|
| 2487 | if (!pVM->tm.s.fVirtualSyncTicking)
|
|---|
| 2488 | {
|
|---|
| 2489 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncRunStoppedAlready);
|
|---|
| 2490 | u64Now = pVM->tm.s.u64VirtualSync;
|
|---|
| 2491 | Assert(u64Now <= pNext->u64Expire);
|
|---|
| 2492 | }
|
|---|
| 2493 | else
|
|---|
| 2494 | {
|
|---|
| 2495 | /* Calc 'now'. */
|
|---|
| 2496 | bool fStopCatchup = false;
|
|---|
| 2497 | bool fUpdateStuff = false;
|
|---|
| 2498 | uint64_t off = pVM->tm.s.offVirtualSync;
|
|---|
| 2499 | if (pVM->tm.s.fVirtualSyncCatchUp)
|
|---|
| 2500 | {
|
|---|
| 2501 | uint64_t u64Delta = u64VirtualNow - pVM->tm.s.u64VirtualSyncCatchUpPrev;
|
|---|
| 2502 | if (RT_LIKELY(!(u64Delta >> 32)))
|
|---|
| 2503 | {
|
|---|
| 2504 | uint64_t u64Sub = ASMMultU64ByU32DivByU32(u64Delta, pVM->tm.s.u32VirtualSyncCatchUpPercentage, 100);
|
|---|
| 2505 | if (off > u64Sub + offSyncGivenUp)
|
|---|
| 2506 | {
|
|---|
| 2507 | off -= u64Sub;
|
|---|
| 2508 | Log4(("TM: %'RU64/-%'8RU64: sub %'RU64 [tmR3TimerQueueRunVirtualSync]\n", u64VirtualNow - off, off - offSyncGivenUp, u64Sub));
|
|---|
| 2509 | }
|
|---|
| 2510 | else
|
|---|
| 2511 | {
|
|---|
| 2512 | STAM_PROFILE_ADV_STOP(&pVM->tm.s.StatVirtualSyncCatchup, c);
|
|---|
| 2513 | fStopCatchup = true;
|
|---|
| 2514 | off = offSyncGivenUp;
|
|---|
| 2515 | }
|
|---|
| 2516 | fUpdateStuff = true;
|
|---|
| 2517 | }
|
|---|
| 2518 | }
|
|---|
| 2519 | u64Now = u64VirtualNow - off;
|
|---|
| 2520 |
|
|---|
| 2521 | /* Adjust against last returned time. */
|
|---|
| 2522 | uint64_t u64Last = ASMAtomicUoReadU64(&pVM->tm.s.u64VirtualSync);
|
|---|
| 2523 | if (u64Last > u64Now)
|
|---|
| 2524 | {
|
|---|
| 2525 | u64Now = u64Last + 1;
|
|---|
| 2526 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncGetAdjLast);
|
|---|
| 2527 | }
|
|---|
| 2528 |
|
|---|
| 2529 | /* Check if stopped by expired timer. */
|
|---|
| 2530 | uint64_t const u64Expire = pNext->u64Expire;
|
|---|
| 2531 | if (u64Now >= u64Expire)
|
|---|
| 2532 | {
|
|---|
| 2533 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncRunStop);
|
|---|
| 2534 | u64Now = u64Expire;
|
|---|
| 2535 | ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSync, u64Now);
|
|---|
| 2536 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncTicking, false);
|
|---|
| 2537 | Log4(("TM: %'RU64/-%'8RU64: exp tmr [tmR3TimerQueueRunVirtualSync]\n", u64Now, u64VirtualNow - u64Now - offSyncGivenUp));
|
|---|
| 2538 | }
|
|---|
| 2539 | else
|
|---|
| 2540 | {
|
|---|
| 2541 | ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSync, u64Now);
|
|---|
| 2542 | if (fUpdateStuff)
|
|---|
| 2543 | {
|
|---|
| 2544 | ASMAtomicWriteU64(&pVM->tm.s.offVirtualSync, off);
|
|---|
| 2545 | ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSyncCatchUpPrev, u64VirtualNow);
|
|---|
| 2546 | ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSync, u64Now);
|
|---|
| 2547 | if (fStopCatchup)
|
|---|
| 2548 | {
|
|---|
| 2549 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, false);
|
|---|
| 2550 | Log4(("TM: %'RU64/0: caught up [tmR3TimerQueueRunVirtualSync]\n", u64VirtualNow));
|
|---|
| 2551 | }
|
|---|
| 2552 | }
|
|---|
| 2553 | }
|
|---|
| 2554 | }
|
|---|
| 2555 |
|
|---|
| 2556 | /* calc end of frame. */
|
|---|
| 2557 | uint64_t u64Max = u64Now + pVM->tm.s.u32VirtualSyncScheduleSlack;
|
|---|
| 2558 | if (u64Max > u64VirtualNow - offSyncGivenUp)
|
|---|
| 2559 | u64Max = u64VirtualNow - offSyncGivenUp;
|
|---|
| 2560 |
|
|---|
| 2561 | /* assert sanity */
|
|---|
| 2562 | Assert(u64Now <= u64VirtualNow - offSyncGivenUp);
|
|---|
| 2563 | Assert(u64Max <= u64VirtualNow - offSyncGivenUp);
|
|---|
| 2564 | Assert(u64Now <= u64Max);
|
|---|
| 2565 | Assert(offSyncGivenUp == pVM->tm.s.offVirtualSyncGivenUp);
|
|---|
| 2566 |
|
|---|
| 2567 | /*
|
|---|
| 2568 | * Process the expired timers moving the clock along as we progress.
|
|---|
| 2569 | */
|
|---|
| 2570 | #ifdef VBOX_STRICT
|
|---|
| 2571 | uint64_t u64Prev = u64Now; NOREF(u64Prev);
|
|---|
| 2572 | #endif
|
|---|
| 2573 | while (pNext && pNext->u64Expire <= u64Max)
|
|---|
| 2574 | {
|
|---|
| 2575 | /* Advance */
|
|---|
| 2576 | PTMTIMER pTimer = pNext;
|
|---|
| 2577 | pNext = tmTimerGetNext(pQueue, pTimer);
|
|---|
| 2578 |
|
|---|
| 2579 | /* Take the associated lock. */
|
|---|
| 2580 | PPDMCRITSECT pCritSect = pTimer->pCritSect;
|
|---|
| 2581 | if (pCritSect)
|
|---|
| 2582 | {
|
|---|
| 2583 | STAM_PROFILE_START(&pTimer->StatCritSectEnter, Locking);
|
|---|
| 2584 | PDMCritSectEnter(pVM, pCritSect, VERR_IGNORED);
|
|---|
| 2585 | STAM_PROFILE_STOP(&pTimer->StatCritSectEnter, Locking);
|
|---|
| 2586 | }
|
|---|
| 2587 |
|
|---|
| 2588 | Log2(("tmR3TimerQueueRunVirtualSync: %p:{.enmState=%s, .enmClock=%d, .enmType=%d, u64Expire=%llx (now=%llx) .szName='%s'}\n",
|
|---|
| 2589 | pTimer, tmTimerState(pTimer->enmState), pQueue->enmClock, pTimer->enmType, pTimer->u64Expire, u64Now, pTimer->szName));
|
|---|
| 2590 |
|
|---|
| 2591 | /* Advance the clock - don't permit timers to be out of order or armed
|
|---|
| 2592 | in the 'past'. */
|
|---|
| 2593 | #ifdef VBOX_STRICT
|
|---|
| 2594 | AssertMsg(pTimer->u64Expire >= u64Prev, ("%'RU64 < %'RU64 %s\n", pTimer->u64Expire, u64Prev, pTimer->szName));
|
|---|
| 2595 | u64Prev = pTimer->u64Expire;
|
|---|
| 2596 | #endif
|
|---|
| 2597 | ASMAtomicWriteU64(&pVM->tm.s.u64VirtualSync, pTimer->u64Expire);
|
|---|
| 2598 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncTicking, false);
|
|---|
| 2599 |
|
|---|
| 2600 | /* Unlink it, change the state and do the callout. */
|
|---|
| 2601 | tmTimerQueueUnlinkActive(pVM, pQueue, pQueue, pTimer);
|
|---|
| 2602 | TM_SET_STATE(pTimer, TMTIMERSTATE_EXPIRED_DELIVER);
|
|---|
| 2603 | STAM_PROFILE_START(&pTimer->StatTimer, PrfTimer);
|
|---|
| 2604 | switch (pTimer->enmType)
|
|---|
| 2605 | {
|
|---|
| 2606 | case TMTIMERTYPE_DEV: pTimer->u.Dev.pfnTimer(pTimer->u.Dev.pDevIns, pTimer->hSelf, pTimer->pvUser); break;
|
|---|
| 2607 | case TMTIMERTYPE_USB: pTimer->u.Usb.pfnTimer(pTimer->u.Usb.pUsbIns, pTimer->hSelf, pTimer->pvUser); break;
|
|---|
| 2608 | case TMTIMERTYPE_DRV: pTimer->u.Drv.pfnTimer(pTimer->u.Drv.pDrvIns, pTimer->hSelf, pTimer->pvUser); break;
|
|---|
| 2609 | case TMTIMERTYPE_INTERNAL: pTimer->u.Internal.pfnTimer(pVM, pTimer->hSelf, pTimer->pvUser); break;
|
|---|
| 2610 | default:
|
|---|
| 2611 | AssertMsgFailed(("Invalid timer type %d (%s)\n", pTimer->enmType, pTimer->szName));
|
|---|
| 2612 | break;
|
|---|
| 2613 | }
|
|---|
| 2614 | STAM_PROFILE_STOP(&pTimer->StatTimer, PrfTimer);
|
|---|
| 2615 |
|
|---|
| 2616 | /* Change the state if it wasn't changed already in the handler.
|
|---|
| 2617 | Reset the Hz hint too since this is the same as TMTimerStop. */
|
|---|
| 2618 | bool fRc;
|
|---|
| 2619 | TM_TRY_SET_STATE(pTimer, TMTIMERSTATE_STOPPED, TMTIMERSTATE_EXPIRED_DELIVER, fRc);
|
|---|
| 2620 | if (fRc && pTimer->uHzHint)
|
|---|
| 2621 | {
|
|---|
| 2622 | if (pTimer->uHzHint >= pQueue->uMaxHzHint)
|
|---|
| 2623 | ASMAtomicOrU64(&pVM->tm.s.HzHint.u64Combined, RT_BIT_32(TMCLOCK_VIRTUAL_SYNC) | RT_BIT_32(TMCLOCK_VIRTUAL_SYNC + 16));
|
|---|
| 2624 | pTimer->uHzHint = 0;
|
|---|
| 2625 | }
|
|---|
| 2626 | Log2(("tmR3TimerQueueRunVirtualSync: new state %s\n", tmTimerState(pTimer->enmState)));
|
|---|
| 2627 |
|
|---|
| 2628 | /* Leave the associated lock. */
|
|---|
| 2629 | if (pCritSect)
|
|---|
| 2630 | PDMCritSectLeave(pVM, pCritSect);
|
|---|
| 2631 | } /* run loop */
|
|---|
| 2632 |
|
|---|
| 2633 |
|
|---|
| 2634 | /*
|
|---|
| 2635 | * Restart the clock if it was stopped to serve any timers,
|
|---|
| 2636 | * and start/adjust catch-up if necessary.
|
|---|
| 2637 | */
|
|---|
| 2638 | if ( !pVM->tm.s.fVirtualSyncTicking
|
|---|
| 2639 | && pVM->tm.s.cVirtualTicking)
|
|---|
| 2640 | {
|
|---|
| 2641 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncRunRestart);
|
|---|
| 2642 |
|
|---|
| 2643 | /* calc the slack we've handed out. */
|
|---|
| 2644 | const uint64_t u64VirtualNow2 = TMVirtualGetNoCheck(pVM);
|
|---|
| 2645 | Assert(u64VirtualNow2 >= u64VirtualNow);
|
|---|
| 2646 | AssertMsg(pVM->tm.s.u64VirtualSync >= u64Now, ("%'RU64 < %'RU64\n", pVM->tm.s.u64VirtualSync, u64Now));
|
|---|
| 2647 | const uint64_t offSlack = pVM->tm.s.u64VirtualSync - u64Now;
|
|---|
| 2648 | STAM_STATS({
|
|---|
| 2649 | if (offSlack)
|
|---|
| 2650 | {
|
|---|
| 2651 | PSTAMPROFILE p = &pVM->tm.s.StatVirtualSyncRunSlack;
|
|---|
| 2652 | p->cPeriods++;
|
|---|
| 2653 | p->cTicks += offSlack;
|
|---|
| 2654 | if (p->cTicksMax < offSlack) p->cTicksMax = offSlack;
|
|---|
| 2655 | if (p->cTicksMin > offSlack) p->cTicksMin = offSlack;
|
|---|
| 2656 | }
|
|---|
| 2657 | });
|
|---|
| 2658 |
|
|---|
| 2659 | /* Let the time run a little bit while we were busy running timers(?). */
|
|---|
| 2660 | uint64_t u64Elapsed;
|
|---|
| 2661 | #define MAX_ELAPSED 30000U /* ns */
|
|---|
| 2662 | if (offSlack > MAX_ELAPSED)
|
|---|
| 2663 | u64Elapsed = 0;
|
|---|
| 2664 | else
|
|---|
| 2665 | {
|
|---|
| 2666 | u64Elapsed = u64VirtualNow2 - u64VirtualNow;
|
|---|
| 2667 | if (u64Elapsed > MAX_ELAPSED)
|
|---|
| 2668 | u64Elapsed = MAX_ELAPSED;
|
|---|
| 2669 | u64Elapsed = u64Elapsed > offSlack ? u64Elapsed - offSlack : 0;
|
|---|
| 2670 | }
|
|---|
| 2671 | #undef MAX_ELAPSED
|
|---|
| 2672 |
|
|---|
| 2673 | /* Calc the current offset. */
|
|---|
| 2674 | uint64_t offNew = u64VirtualNow2 - pVM->tm.s.u64VirtualSync - u64Elapsed;
|
|---|
| 2675 | Assert(!(offNew & RT_BIT_64(63)));
|
|---|
| 2676 | uint64_t offLag = offNew - pVM->tm.s.offVirtualSyncGivenUp;
|
|---|
| 2677 | Assert(!(offLag & RT_BIT_64(63)));
|
|---|
| 2678 |
|
|---|
| 2679 | /*
|
|---|
| 2680 | * Deal with starting, adjusting and stopping catchup.
|
|---|
| 2681 | */
|
|---|
| 2682 | if (pVM->tm.s.fVirtualSyncCatchUp)
|
|---|
| 2683 | {
|
|---|
| 2684 | if (offLag <= pVM->tm.s.u64VirtualSyncCatchUpStopThreshold)
|
|---|
| 2685 | {
|
|---|
| 2686 | /* stop */
|
|---|
| 2687 | STAM_PROFILE_ADV_STOP(&pVM->tm.s.StatVirtualSyncCatchup, c);
|
|---|
| 2688 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, false);
|
|---|
| 2689 | Log4(("TM: %'RU64/-%'8RU64: caught up [pt]\n", u64VirtualNow2 - offNew, offLag));
|
|---|
| 2690 | }
|
|---|
| 2691 | else if (offLag <= pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold)
|
|---|
| 2692 | {
|
|---|
| 2693 | /* adjust */
|
|---|
| 2694 | unsigned i = 0;
|
|---|
| 2695 | while ( i + 1 < RT_ELEMENTS(pVM->tm.s.aVirtualSyncCatchUpPeriods)
|
|---|
| 2696 | && offLag >= pVM->tm.s.aVirtualSyncCatchUpPeriods[i + 1].u64Start)
|
|---|
| 2697 | i++;
|
|---|
| 2698 | if (pVM->tm.s.u32VirtualSyncCatchUpPercentage < pVM->tm.s.aVirtualSyncCatchUpPeriods[i].u32Percentage)
|
|---|
| 2699 | {
|
|---|
| 2700 | STAM_COUNTER_INC(&pVM->tm.s.aStatVirtualSyncCatchupAdjust[i]);
|
|---|
| 2701 | ASMAtomicWriteU32(&pVM->tm.s.u32VirtualSyncCatchUpPercentage, pVM->tm.s.aVirtualSyncCatchUpPeriods[i].u32Percentage);
|
|---|
| 2702 | Log4(("TM: %'RU64/%'8RU64: adj %u%%\n", u64VirtualNow2 - offNew, offLag, pVM->tm.s.u32VirtualSyncCatchUpPercentage));
|
|---|
| 2703 | }
|
|---|
| 2704 | pVM->tm.s.u64VirtualSyncCatchUpPrev = u64VirtualNow2;
|
|---|
| 2705 | }
|
|---|
| 2706 | else
|
|---|
| 2707 | {
|
|---|
| 2708 | /* give up */
|
|---|
| 2709 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncGiveUp);
|
|---|
| 2710 | STAM_PROFILE_ADV_STOP(&pVM->tm.s.StatVirtualSyncCatchup, c);
|
|---|
| 2711 | ASMAtomicWriteU64((uint64_t volatile *)&pVM->tm.s.offVirtualSyncGivenUp, offNew);
|
|---|
| 2712 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, false);
|
|---|
| 2713 | Log4(("TM: %'RU64/%'8RU64: give up %u%%\n", u64VirtualNow2 - offNew, offLag, pVM->tm.s.u32VirtualSyncCatchUpPercentage));
|
|---|
| 2714 | LogRel(("TM: Giving up catch-up attempt at a %'RU64 ns lag; new total: %'RU64 ns\n", offLag, offNew));
|
|---|
| 2715 | }
|
|---|
| 2716 | }
|
|---|
| 2717 | else if (offLag >= pVM->tm.s.aVirtualSyncCatchUpPeriods[0].u64Start)
|
|---|
| 2718 | {
|
|---|
| 2719 | if (offLag <= pVM->tm.s.u64VirtualSyncCatchUpGiveUpThreshold)
|
|---|
| 2720 | {
|
|---|
| 2721 | /* start */
|
|---|
| 2722 | STAM_PROFILE_ADV_START(&pVM->tm.s.StatVirtualSyncCatchup, c);
|
|---|
| 2723 | unsigned i = 0;
|
|---|
| 2724 | while ( i + 1 < RT_ELEMENTS(pVM->tm.s.aVirtualSyncCatchUpPeriods)
|
|---|
| 2725 | && offLag >= pVM->tm.s.aVirtualSyncCatchUpPeriods[i + 1].u64Start)
|
|---|
| 2726 | i++;
|
|---|
| 2727 | STAM_COUNTER_INC(&pVM->tm.s.aStatVirtualSyncCatchupInitial[i]);
|
|---|
| 2728 | ASMAtomicWriteU32(&pVM->tm.s.u32VirtualSyncCatchUpPercentage, pVM->tm.s.aVirtualSyncCatchUpPeriods[i].u32Percentage);
|
|---|
| 2729 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncCatchUp, true);
|
|---|
| 2730 | Log4(("TM: %'RU64/%'8RU64: catch-up %u%%\n", u64VirtualNow2 - offNew, offLag, pVM->tm.s.u32VirtualSyncCatchUpPercentage));
|
|---|
| 2731 | }
|
|---|
| 2732 | else
|
|---|
| 2733 | {
|
|---|
| 2734 | /* don't bother */
|
|---|
| 2735 | STAM_COUNTER_INC(&pVM->tm.s.StatVirtualSyncGiveUpBeforeStarting);
|
|---|
| 2736 | ASMAtomicWriteU64((uint64_t volatile *)&pVM->tm.s.offVirtualSyncGivenUp, offNew);
|
|---|
| 2737 | Log4(("TM: %'RU64/%'8RU64: give up\n", u64VirtualNow2 - offNew, offLag));
|
|---|
| 2738 | LogRel(("TM: Not bothering to attempt catching up a %'RU64 ns lag; new total: %'RU64\n", offLag, offNew));
|
|---|
| 2739 | }
|
|---|
| 2740 | }
|
|---|
| 2741 |
|
|---|
| 2742 | /*
|
|---|
| 2743 | * Update the offset and restart the clock.
|
|---|
| 2744 | */
|
|---|
| 2745 | Assert(!(offNew & RT_BIT_64(63)));
|
|---|
| 2746 | ASMAtomicWriteU64(&pVM->tm.s.offVirtualSync, offNew);
|
|---|
| 2747 | ASMAtomicWriteBool(&pVM->tm.s.fVirtualSyncTicking, true);
|
|---|
| 2748 | }
|
|---|
| 2749 | }
|
|---|
| 2750 |
|
|---|
| 2751 |
|
|---|
| 2752 | /**
|
|---|
| 2753 | * Deals with stopped Virtual Sync clock.
|
|---|
| 2754 | *
|
|---|
| 2755 | * This is called by the forced action flag handling code in EM when it
|
|---|
| 2756 | * encounters the VM_FF_TM_VIRTUAL_SYNC flag. It is called by all VCPUs and they
|
|---|
| 2757 | * will block on the VirtualSyncLock until the pending timers has been executed
|
|---|
| 2758 | * and the clock restarted.
|
|---|
| 2759 | *
|
|---|
| 2760 | * @param pVM The cross context VM structure.
|
|---|
| 2761 | * @param pVCpu The cross context virtual CPU structure of the calling EMT.
|
|---|
| 2762 | *
|
|---|
| 2763 | * @thread EMTs
|
|---|
| 2764 | */
|
|---|
| 2765 | VMMR3_INT_DECL(void) TMR3VirtualSyncFF(PVM pVM, PVMCPU pVCpu)
|
|---|
| 2766 | {
|
|---|
| 2767 | Log2(("TMR3VirtualSyncFF:\n"));
|
|---|
| 2768 |
|
|---|
| 2769 | /*
|
|---|
| 2770 | * The EMT doing the timers is diverted to them.
|
|---|
| 2771 | */
|
|---|
| 2772 | if (pVCpu->idCpu == pVM->tm.s.idTimerCpu)
|
|---|
| 2773 | TMR3TimerQueuesDo(pVM);
|
|---|
| 2774 | /*
|
|---|
| 2775 | * The other EMTs will block on the virtual sync lock and the first owner
|
|---|
| 2776 | * will run the queue and thus restarting the clock.
|
|---|
| 2777 | *
|
|---|
| 2778 | * Note! This is very suboptimal code wrt to resuming execution when there
|
|---|
| 2779 | * are more than two Virtual CPUs, since they will all have to enter
|
|---|
| 2780 | * the critical section one by one. But it's a very simple solution
|
|---|
| 2781 | * which will have to do the job for now.
|
|---|
| 2782 | */
|
|---|
| 2783 | else
|
|---|
| 2784 | {
|
|---|
| 2785 | /** @todo Optimize for SMP */
|
|---|
| 2786 | STAM_PROFILE_START(&pVM->tm.s.StatVirtualSyncFF, a);
|
|---|
| 2787 | PDMCritSectEnter(pVM, &pVM->tm.s.VirtualSyncLock, VERR_IGNORED);
|
|---|
| 2788 | if (pVM->tm.s.fVirtualSyncTicking)
|
|---|
| 2789 | {
|
|---|
| 2790 | STAM_PROFILE_STOP(&pVM->tm.s.StatVirtualSyncFF, a); /* before the unlock! */
|
|---|
| 2791 | PDMCritSectLeave(pVM, &pVM->tm.s.VirtualSyncLock);
|
|---|
| 2792 | Log2(("TMR3VirtualSyncFF: ticking\n"));
|
|---|
| 2793 | }
|
|---|
| 2794 | else
|
|---|
| 2795 | {
|
|---|
| 2796 | PDMCritSectLeave(pVM, &pVM->tm.s.VirtualSyncLock);
|
|---|
| 2797 |
|
|---|
| 2798 | /* try run it. */
|
|---|
| 2799 | PDMCritSectEnter(pVM, &pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL].TimerLock, VERR_IGNORED);
|
|---|
| 2800 | PDMCritSectEnter(pVM, &pVM->tm.s.VirtualSyncLock, VERR_IGNORED);
|
|---|
| 2801 | if (pVM->tm.s.fVirtualSyncTicking)
|
|---|
| 2802 | Log2(("TMR3VirtualSyncFF: ticking (2)\n"));
|
|---|
| 2803 | else
|
|---|
| 2804 | {
|
|---|
| 2805 | ASMAtomicWriteBool(&pVM->tm.s.fRunningVirtualSyncQueue, true);
|
|---|
| 2806 | Log2(("TMR3VirtualSyncFF: running queue\n"));
|
|---|
| 2807 |
|
|---|
| 2808 | Assert(pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL_SYNC].idxSchedule == UINT32_MAX);
|
|---|
| 2809 | tmR3TimerQueueRunVirtualSync(pVM);
|
|---|
| 2810 | if (pVM->tm.s.fVirtualSyncTicking) /** @todo move into tmR3TimerQueueRunVirtualSync - FIXME */
|
|---|
| 2811 | VM_FF_CLEAR(pVM, VM_FF_TM_VIRTUAL_SYNC);
|
|---|
| 2812 |
|
|---|
| 2813 | ASMAtomicWriteBool(&pVM->tm.s.fRunningVirtualSyncQueue, false);
|
|---|
| 2814 | }
|
|---|
| 2815 | PDMCritSectLeave(pVM, &pVM->tm.s.VirtualSyncLock);
|
|---|
| 2816 | STAM_PROFILE_STOP(&pVM->tm.s.StatVirtualSyncFF, a); /* before the unlock! */
|
|---|
| 2817 | PDMCritSectLeave(pVM, &pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL].TimerLock);
|
|---|
| 2818 | }
|
|---|
| 2819 | }
|
|---|
| 2820 | }
|
|---|
| 2821 |
|
|---|
| 2822 |
|
|---|
| 2823 | /**
|
|---|
| 2824 | * Service the special virtual sync timer queue.
|
|---|
| 2825 | *
|
|---|
| 2826 | * @param pVM The cross context VM structure.
|
|---|
| 2827 | * @param pVCpuDst The destination VCpu.
|
|---|
| 2828 | */
|
|---|
| 2829 | static void tmR3TimerQueueDoVirtualSync(PVM pVM, PVMCPU pVCpuDst)
|
|---|
| 2830 | {
|
|---|
| 2831 | PTMTIMERQUEUE pQueue = &pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL_SYNC];
|
|---|
| 2832 | if (ASMAtomicCmpXchgBool(&pQueue->fBeingProcessed, true, false))
|
|---|
| 2833 | {
|
|---|
| 2834 | STAM_PROFILE_START(&pQueue->StatDo, s1);
|
|---|
| 2835 | PDMCritSectEnter(pVM, &pQueue->TimerLock, VERR_IGNORED);
|
|---|
| 2836 | PDMCritSectEnter(pVM, &pVM->tm.s.VirtualSyncLock, VERR_IGNORED);
|
|---|
| 2837 | ASMAtomicWriteBool(&pVM->tm.s.fRunningVirtualSyncQueue, true);
|
|---|
| 2838 | VMCPU_FF_CLEAR(pVCpuDst, VMCPU_FF_TIMER); /* Clear the FF once we started working for real. */
|
|---|
| 2839 |
|
|---|
| 2840 | Assert(pQueue->idxSchedule == UINT32_MAX);
|
|---|
| 2841 | tmR3TimerQueueRunVirtualSync(pVM);
|
|---|
| 2842 | if (pVM->tm.s.fVirtualSyncTicking) /** @todo move into tmR3TimerQueueRunVirtualSync - FIXME */
|
|---|
| 2843 | VM_FF_CLEAR(pVM, VM_FF_TM_VIRTUAL_SYNC);
|
|---|
| 2844 |
|
|---|
| 2845 | ASMAtomicWriteBool(&pVM->tm.s.fRunningVirtualSyncQueue, false);
|
|---|
| 2846 | PDMCritSectLeave(pVM, &pVM->tm.s.VirtualSyncLock);
|
|---|
| 2847 | PDMCritSectLeave(pVM, &pQueue->TimerLock);
|
|---|
| 2848 | STAM_PROFILE_STOP(&pQueue->StatDo, s1);
|
|---|
| 2849 | ASMAtomicWriteBool(&pQueue->fBeingProcessed, false);
|
|---|
| 2850 | }
|
|---|
| 2851 | }
|
|---|
| 2852 |
|
|---|
| 2853 |
|
|---|
| 2854 | /**
|
|---|
| 2855 | * Schedules and runs any pending timers.
|
|---|
| 2856 | *
|
|---|
| 2857 | * This is normally called from a forced action handler in EMT.
|
|---|
| 2858 | *
|
|---|
| 2859 | * @param pVM The cross context VM structure.
|
|---|
| 2860 | *
|
|---|
| 2861 | * @thread EMT (actually EMT0, but we fend off the others)
|
|---|
| 2862 | */
|
|---|
| 2863 | VMMR3DECL(void) TMR3TimerQueuesDo(PVM pVM)
|
|---|
| 2864 | {
|
|---|
| 2865 | /*
|
|---|
| 2866 | * Only the dedicated timer EMT should do stuff here.
|
|---|
| 2867 | * (fRunningQueues is only used as an indicator.)
|
|---|
| 2868 | */
|
|---|
| 2869 | Assert(pVM->tm.s.idTimerCpu < pVM->cCpus);
|
|---|
| 2870 | PVMCPU pVCpuDst = pVM->apCpusR3[pVM->tm.s.idTimerCpu];
|
|---|
| 2871 | if (VMMGetCpu(pVM) != pVCpuDst)
|
|---|
| 2872 | {
|
|---|
| 2873 | Assert(pVM->cCpus > 1);
|
|---|
| 2874 | return;
|
|---|
| 2875 | }
|
|---|
| 2876 | STAM_PROFILE_START(&pVM->tm.s.StatDoQueues, a);
|
|---|
| 2877 | Log2(("TMR3TimerQueuesDo:\n"));
|
|---|
| 2878 | Assert(!pVM->tm.s.fRunningQueues);
|
|---|
| 2879 | ASMAtomicWriteBool(&pVM->tm.s.fRunningQueues, true);
|
|---|
| 2880 |
|
|---|
| 2881 | /*
|
|---|
| 2882 | * Process the queues.
|
|---|
| 2883 | */
|
|---|
| 2884 | AssertCompile(TMCLOCK_MAX == 4);
|
|---|
| 2885 |
|
|---|
| 2886 | /*
|
|---|
| 2887 | * TMCLOCK_VIRTUAL_SYNC (see also TMR3VirtualSyncFF)
|
|---|
| 2888 | */
|
|---|
| 2889 | tmR3TimerQueueDoVirtualSync(pVM, pVCpuDst);
|
|---|
| 2890 |
|
|---|
| 2891 | /*
|
|---|
| 2892 | * TMCLOCK_VIRTUAL
|
|---|
| 2893 | */
|
|---|
| 2894 | tmR3TimerQueueDoOne(pVM, &pVM->tm.s.aTimerQueues[TMCLOCK_VIRTUAL]);
|
|---|
| 2895 |
|
|---|
| 2896 | /*
|
|---|
| 2897 | * TMCLOCK_TSC
|
|---|
| 2898 | */
|
|---|
| 2899 | Assert(pVM->tm.s.aTimerQueues[TMCLOCK_TSC].idxActive == UINT32_MAX); /* not used */
|
|---|
| 2900 |
|
|---|
| 2901 | /*
|
|---|
| 2902 | * TMCLOCK_REAL
|
|---|
| 2903 | */
|
|---|
| 2904 | tmR3TimerQueueDoOne(pVM, &pVM->tm.s.aTimerQueues[TMCLOCK_REAL]);
|
|---|
| 2905 |
|
|---|
| 2906 | #ifdef VBOX_STRICT
|
|---|
| 2907 | /* check that we didn't screw up. */
|
|---|
| 2908 | tmTimerQueuesSanityChecks(pVM, "TMR3TimerQueuesDo");
|
|---|
| 2909 | #endif
|
|---|
| 2910 |
|
|---|
| 2911 | /* done */
|
|---|
| 2912 | Log2(("TMR3TimerQueuesDo: returns void\n"));
|
|---|
| 2913 | ASMAtomicWriteBool(&pVM->tm.s.fRunningQueues, false);
|
|---|
| 2914 | STAM_PROFILE_STOP(&pVM->tm.s.StatDoQueues, a);
|
|---|
| 2915 | }
|
|---|
| 2916 |
|
|---|
| 2917 |
|
|---|
| 2918 |
|
|---|
| 2919 | /** @name Saved state values
|
|---|
| 2920 | * @{ */
|
|---|
| 2921 | #define TMTIMERSTATE_SAVED_PENDING_STOP 4
|
|---|
| 2922 | #define TMTIMERSTATE_SAVED_PENDING_SCHEDULE 7
|
|---|
| 2923 | /** @} */
|
|---|
| 2924 |
|
|---|
| 2925 |
|
|---|
| 2926 | /**
|
|---|
| 2927 | * Saves the state of a timer to a saved state.
|
|---|
| 2928 | *
|
|---|
| 2929 | * @returns VBox status code.
|
|---|
| 2930 | * @param pVM The cross context VM structure.
|
|---|
| 2931 | * @param hTimer Timer to save.
|
|---|
| 2932 | * @param pSSM Save State Manager handle.
|
|---|
| 2933 | */
|
|---|
| 2934 | VMMR3DECL(int) TMR3TimerSave(PVM pVM, TMTIMERHANDLE hTimer, PSSMHANDLE pSSM)
|
|---|
| 2935 | {
|
|---|
| 2936 | VM_ASSERT_EMT(pVM);
|
|---|
| 2937 | TMTIMER_HANDLE_TO_VARS_RETURN(pVM, hTimer); /* => pTimer, pQueueCC, pQueue, idxTimer, idxQueue */
|
|---|
| 2938 | LogFlow(("TMR3TimerSave: %p:{enmState=%s, .szName='%s'} pSSM=%p\n", pTimer, tmTimerState(pTimer->enmState), pTimer->szName, pSSM));
|
|---|
| 2939 |
|
|---|
| 2940 | switch (pTimer->enmState)
|
|---|
| 2941 | {
|
|---|
| 2942 | case TMTIMERSTATE_STOPPED:
|
|---|
| 2943 | case TMTIMERSTATE_PENDING_STOP:
|
|---|
| 2944 | case TMTIMERSTATE_PENDING_STOP_SCHEDULE:
|
|---|
| 2945 | return SSMR3PutU8(pSSM, TMTIMERSTATE_SAVED_PENDING_STOP);
|
|---|
| 2946 |
|
|---|
| 2947 | case TMTIMERSTATE_PENDING_SCHEDULE_SET_EXPIRE:
|
|---|
| 2948 | case TMTIMERSTATE_PENDING_RESCHEDULE_SET_EXPIRE:
|
|---|
| 2949 | AssertMsgFailed(("u64Expire is being updated! (%s)\n", pTimer->szName));
|
|---|
| 2950 | if (!RTThreadYield())
|
|---|
| 2951 | RTThreadSleep(1);
|
|---|
| 2952 | RT_FALL_THRU();
|
|---|
| 2953 | case TMTIMERSTATE_ACTIVE:
|
|---|
| 2954 | case TMTIMERSTATE_PENDING_SCHEDULE:
|
|---|
| 2955 | case TMTIMERSTATE_PENDING_RESCHEDULE:
|
|---|
| 2956 | SSMR3PutU8(pSSM, TMTIMERSTATE_SAVED_PENDING_SCHEDULE);
|
|---|
| 2957 | return SSMR3PutU64(pSSM, pTimer->u64Expire);
|
|---|
| 2958 |
|
|---|
| 2959 | case TMTIMERSTATE_EXPIRED_GET_UNLINK:
|
|---|
| 2960 | case TMTIMERSTATE_EXPIRED_DELIVER:
|
|---|
| 2961 | case TMTIMERSTATE_DESTROY:
|
|---|
| 2962 | case TMTIMERSTATE_FREE:
|
|---|
| 2963 | case TMTIMERSTATE_INVALID:
|
|---|
| 2964 | AssertMsgFailed(("Invalid timer state %d %s (%s)\n", pTimer->enmState, tmTimerState(pTimer->enmState), pTimer->szName));
|
|---|
| 2965 | return SSMR3HandleSetStatus(pSSM, VERR_TM_INVALID_STATE);
|
|---|
| 2966 | }
|
|---|
| 2967 |
|
|---|
| 2968 | AssertMsgFailed(("Unknown timer state %d (%s)\n", pTimer->enmState, pTimer->szName));
|
|---|
| 2969 | return SSMR3HandleSetStatus(pSSM, VERR_TM_UNKNOWN_STATE);
|
|---|
| 2970 | }
|
|---|
| 2971 |
|
|---|
| 2972 |
|
|---|
| 2973 | /**
|
|---|
| 2974 | * Loads the state of a timer from a saved state.
|
|---|
| 2975 | *
|
|---|
| 2976 | * @returns VBox status code.
|
|---|
| 2977 | * @param pVM The cross context VM structure.
|
|---|
| 2978 | * @param hTimer Handle of Timer to restore.
|
|---|
| 2979 | * @param pSSM Save State Manager handle.
|
|---|
| 2980 | */
|
|---|
| 2981 | VMMR3DECL(int) TMR3TimerLoad(PVM pVM, TMTIMERHANDLE hTimer, PSSMHANDLE pSSM)
|
|---|
| 2982 | {
|
|---|
| 2983 | VM_ASSERT_EMT(pVM);
|
|---|
| 2984 | TMTIMER_HANDLE_TO_VARS_RETURN(pVM, hTimer); /* => pTimer, pQueueCC, pQueue, idxTimer, idxQueue */
|
|---|
| 2985 | Assert(pSSM);
|
|---|
| 2986 | LogFlow(("TMR3TimerLoad: %p:{enmState=%s, .szName='%s'} pSSM=%p\n", pTimer, tmTimerState(pTimer->enmState), pTimer->szName, pSSM));
|
|---|
| 2987 |
|
|---|
| 2988 | /*
|
|---|
| 2989 | * Load the state and validate it.
|
|---|
| 2990 | */
|
|---|
| 2991 | uint8_t u8State;
|
|---|
| 2992 | int rc = SSMR3GetU8(pSSM, &u8State);
|
|---|
| 2993 | if (RT_FAILURE(rc))
|
|---|
| 2994 | return rc;
|
|---|
| 2995 |
|
|---|
| 2996 | /* TMTIMERSTATE_SAVED_XXX: Workaround for accidental state shift in r47786 (2009-05-26 19:12:12). */
|
|---|
| 2997 | if ( u8State == TMTIMERSTATE_SAVED_PENDING_STOP + 1
|
|---|
| 2998 | || u8State == TMTIMERSTATE_SAVED_PENDING_SCHEDULE + 1)
|
|---|
| 2999 | u8State--;
|
|---|
| 3000 |
|
|---|
| 3001 | if ( u8State != TMTIMERSTATE_SAVED_PENDING_STOP
|
|---|
| 3002 | && u8State != TMTIMERSTATE_SAVED_PENDING_SCHEDULE)
|
|---|
| 3003 | {
|
|---|
| 3004 | AssertLogRelMsgFailed(("u8State=%d\n", u8State));
|
|---|
| 3005 | return SSMR3HandleSetStatus(pSSM, VERR_TM_LOAD_STATE);
|
|---|
| 3006 | }
|
|---|
| 3007 |
|
|---|
| 3008 | /* Enter the critical sections to make TMTimerSet/Stop happy. */
|
|---|
| 3009 | if (pQueue->enmClock == TMCLOCK_VIRTUAL_SYNC)
|
|---|
| 3010 | PDMCritSectEnter(pVM, &pVM->tm.s.VirtualSyncLock, VERR_IGNORED);
|
|---|
| 3011 | PPDMCRITSECT pCritSect = pTimer->pCritSect;
|
|---|
| 3012 | if (pCritSect)
|
|---|
| 3013 | PDMCritSectEnter(pVM, pCritSect, VERR_IGNORED);
|
|---|
| 3014 |
|
|---|
| 3015 | if (u8State == TMTIMERSTATE_SAVED_PENDING_SCHEDULE)
|
|---|
| 3016 | {
|
|---|
| 3017 | /*
|
|---|
| 3018 | * Load the expire time.
|
|---|
| 3019 | */
|
|---|
| 3020 | uint64_t u64Expire;
|
|---|
| 3021 | rc = SSMR3GetU64(pSSM, &u64Expire);
|
|---|
| 3022 | if (RT_FAILURE(rc))
|
|---|
| 3023 | return rc;
|
|---|
| 3024 |
|
|---|
| 3025 | /*
|
|---|
| 3026 | * Set it.
|
|---|
| 3027 | */
|
|---|
| 3028 | Log(("u8State=%d u64Expire=%llu\n", u8State, u64Expire));
|
|---|
| 3029 | rc = TMTimerSet(pVM, hTimer, u64Expire);
|
|---|
| 3030 | }
|
|---|
| 3031 | else
|
|---|
| 3032 | {
|
|---|
| 3033 | /*
|
|---|
| 3034 | * Stop it.
|
|---|
| 3035 | */
|
|---|
| 3036 | Log(("u8State=%d\n", u8State));
|
|---|
| 3037 | rc = TMTimerStop(pVM, hTimer);
|
|---|
| 3038 | }
|
|---|
| 3039 |
|
|---|
| 3040 | if (pCritSect)
|
|---|
| 3041 | PDMCritSectLeave(pVM, pCritSect);
|
|---|
| 3042 | if (pQueue->enmClock == TMCLOCK_VIRTUAL_SYNC)
|
|---|
| 3043 | PDMCritSectLeave(pVM, &pVM->tm.s.VirtualSyncLock);
|
|---|
| 3044 |
|
|---|
| 3045 | /*
|
|---|
| 3046 | * On failure set SSM status.
|
|---|
| 3047 | */
|
|---|
| 3048 | if (RT_FAILURE(rc))
|
|---|
| 3049 | rc = SSMR3HandleSetStatus(pSSM, rc);
|
|---|
| 3050 | return rc;
|
|---|
| 3051 | }
|
|---|
| 3052 |
|
|---|
| 3053 |
|
|---|
| 3054 | /**
|
|---|
| 3055 | * Skips the state of a timer in a given saved state.
|
|---|
| 3056 | *
|
|---|
| 3057 | * @returns VBox status.
|
|---|
| 3058 | * @param pSSM Save State Manager handle.
|
|---|
| 3059 | * @param pfActive Where to store whether the timer was active
|
|---|
| 3060 | * when the state was saved.
|
|---|
| 3061 | */
|
|---|
| 3062 | VMMR3DECL(int) TMR3TimerSkip(PSSMHANDLE pSSM, bool *pfActive)
|
|---|
| 3063 | {
|
|---|
| 3064 | Assert(pSSM); AssertPtr(pfActive);
|
|---|
| 3065 | LogFlow(("TMR3TimerSkip: pSSM=%p pfActive=%p\n", pSSM, pfActive));
|
|---|
| 3066 |
|
|---|
| 3067 | /*
|
|---|
| 3068 | * Load the state and validate it.
|
|---|
| 3069 | */
|
|---|
| 3070 | uint8_t u8State;
|
|---|
| 3071 | int rc = SSMR3GetU8(pSSM, &u8State);
|
|---|
| 3072 | if (RT_FAILURE(rc))
|
|---|
| 3073 | return rc;
|
|---|
| 3074 |
|
|---|
| 3075 | /* TMTIMERSTATE_SAVED_XXX: Workaround for accidental state shift in r47786 (2009-05-26 19:12:12). */
|
|---|
| 3076 | if ( u8State == TMTIMERSTATE_SAVED_PENDING_STOP + 1
|
|---|
| 3077 | || u8State == TMTIMERSTATE_SAVED_PENDING_SCHEDULE + 1)
|
|---|
| 3078 | u8State--;
|
|---|
| 3079 |
|
|---|
| 3080 | if ( u8State != TMTIMERSTATE_SAVED_PENDING_STOP
|
|---|
| 3081 | && u8State != TMTIMERSTATE_SAVED_PENDING_SCHEDULE)
|
|---|
| 3082 | {
|
|---|
| 3083 | AssertLogRelMsgFailed(("u8State=%d\n", u8State));
|
|---|
| 3084 | return SSMR3HandleSetStatus(pSSM, VERR_TM_LOAD_STATE);
|
|---|
| 3085 | }
|
|---|
| 3086 |
|
|---|
| 3087 | *pfActive = (u8State == TMTIMERSTATE_SAVED_PENDING_SCHEDULE);
|
|---|
| 3088 | if (*pfActive)
|
|---|
| 3089 | {
|
|---|
| 3090 | /*
|
|---|
| 3091 | * Load the expire time.
|
|---|
| 3092 | */
|
|---|
| 3093 | uint64_t u64Expire;
|
|---|
| 3094 | rc = SSMR3GetU64(pSSM, &u64Expire);
|
|---|
| 3095 | }
|
|---|
| 3096 |
|
|---|
| 3097 | return rc;
|
|---|
| 3098 | }
|
|---|
| 3099 |
|
|---|
| 3100 |
|
|---|
| 3101 | /**
|
|---|
| 3102 | * Associates a critical section with a timer.
|
|---|
| 3103 | *
|
|---|
| 3104 | * The critical section will be entered prior to doing the timer call back, thus
|
|---|
| 3105 | * avoiding potential races between the timer thread and other threads trying to
|
|---|
| 3106 | * stop or adjust the timer expiration while it's being delivered. The timer
|
|---|
| 3107 | * thread will leave the critical section when the timer callback returns.
|
|---|
| 3108 | *
|
|---|
| 3109 | * In strict builds, ownership of the critical section will be asserted by
|
|---|
| 3110 | * TMTimerSet, TMTimerStop, TMTimerGetExpire and TMTimerDestroy (when called at
|
|---|
| 3111 | * runtime).
|
|---|
| 3112 | *
|
|---|
| 3113 | * @retval VINF_SUCCESS on success.
|
|---|
| 3114 | * @retval VERR_INVALID_HANDLE if the timer handle is NULL or invalid
|
|---|
| 3115 | * (asserted).
|
|---|
| 3116 | * @retval VERR_INVALID_PARAMETER if pCritSect is NULL or has an invalid magic
|
|---|
| 3117 | * (asserted).
|
|---|
| 3118 | * @retval VERR_ALREADY_EXISTS if a critical section was already associated
|
|---|
| 3119 | * with the timer (asserted).
|
|---|
| 3120 | * @retval VERR_INVALID_STATE if the timer isn't stopped.
|
|---|
| 3121 | *
|
|---|
| 3122 | * @param pVM The cross context VM structure.
|
|---|
| 3123 | * @param hTimer The timer handle.
|
|---|
| 3124 | * @param pCritSect The critical section. The caller must make sure this
|
|---|
| 3125 | * is around for the life time of the timer.
|
|---|
| 3126 | *
|
|---|
| 3127 | * @thread Any, but the caller is responsible for making sure the timer is not
|
|---|
| 3128 | * active.
|
|---|
| 3129 | */
|
|---|
| 3130 | VMMR3DECL(int) TMR3TimerSetCritSect(PVM pVM, TMTIMERHANDLE hTimer, PPDMCRITSECT pCritSect)
|
|---|
| 3131 | {
|
|---|
| 3132 | TMTIMER_HANDLE_TO_VARS_RETURN(pVM, hTimer); /* => pTimer, pQueueCC, pQueue, idxTimer, idxQueue */
|
|---|
| 3133 | AssertPtrReturn(pCritSect, VERR_INVALID_PARAMETER);
|
|---|
| 3134 | const char *pszName = PDMR3CritSectName(pCritSect); /* exploited for validation */
|
|---|
| 3135 | AssertReturn(pszName, VERR_INVALID_PARAMETER);
|
|---|
| 3136 | AssertReturn(!pTimer->pCritSect, VERR_ALREADY_EXISTS);
|
|---|
| 3137 | AssertReturn(pTimer->enmState == TMTIMERSTATE_STOPPED, VERR_INVALID_STATE);
|
|---|
| 3138 | AssertReturn( pTimer->enmType == TMTIMERTYPE_DEV
|
|---|
| 3139 | || pTimer->enmType == TMTIMERTYPE_DRV
|
|---|
| 3140 | || pTimer->enmType == TMTIMERTYPE_USB,
|
|---|
| 3141 | VERR_NOT_SUPPORTED); /* Not supported on internal timers, see tmRZTimerGetCritSect. */
|
|---|
| 3142 | LogFlow(("pTimer=%p (%s) pCritSect=%p (%s)\n", pTimer, pTimer->szName, pCritSect, pszName));
|
|---|
| 3143 |
|
|---|
| 3144 | pTimer->pCritSect = pCritSect;
|
|---|
| 3145 | return VINF_SUCCESS;
|
|---|
| 3146 | }
|
|---|
| 3147 |
|
|---|
| 3148 |
|
|---|
| 3149 | /**
|
|---|
| 3150 | * Get the real world UTC time adjusted for VM lag.
|
|---|
| 3151 | *
|
|---|
| 3152 | * @returns pTime.
|
|---|
| 3153 | * @param pVM The cross context VM structure.
|
|---|
| 3154 | * @param pTime Where to store the time.
|
|---|
| 3155 | */
|
|---|
| 3156 | VMMR3_INT_DECL(PRTTIMESPEC) TMR3UtcNow(PVM pVM, PRTTIMESPEC pTime)
|
|---|
| 3157 | {
|
|---|
| 3158 | /*
|
|---|
| 3159 | * Get a stable set of VirtualSync parameters and calc the lag.
|
|---|
| 3160 | */
|
|---|
| 3161 | uint64_t offVirtualSync;
|
|---|
| 3162 | uint64_t offVirtualSyncGivenUp;
|
|---|
| 3163 | do
|
|---|
| 3164 | {
|
|---|
| 3165 | offVirtualSync = ASMAtomicReadU64(&pVM->tm.s.offVirtualSync);
|
|---|
| 3166 | offVirtualSyncGivenUp = ASMAtomicReadU64((uint64_t volatile *)&pVM->tm.s.offVirtualSyncGivenUp);
|
|---|
| 3167 | } while (ASMAtomicReadU64(&pVM->tm.s.offVirtualSync) != offVirtualSync);
|
|---|
| 3168 |
|
|---|
| 3169 | Assert(offVirtualSync >= offVirtualSyncGivenUp);
|
|---|
| 3170 | uint64_t const offLag = offVirtualSync - offVirtualSyncGivenUp;
|
|---|
| 3171 |
|
|---|
| 3172 | /*
|
|---|
| 3173 | * Get current time and adjust for virtual sync lag and do time displacement.
|
|---|
| 3174 | */
|
|---|
| 3175 | RTTimeNow(pTime);
|
|---|
| 3176 | RTTimeSpecSubNano(pTime, offLag);
|
|---|
| 3177 | RTTimeSpecAddNano(pTime, pVM->tm.s.offUTC);
|
|---|
| 3178 |
|
|---|
| 3179 | /*
|
|---|
| 3180 | * Log details if the time changed radically (also triggers on first call).
|
|---|
| 3181 | */
|
|---|
| 3182 | int64_t nsPrev = ASMAtomicXchgS64(&pVM->tm.s.nsLastUtcNow, RTTimeSpecGetNano(pTime));
|
|---|
| 3183 | int64_t cNsDelta = RTTimeSpecGetNano(pTime) - nsPrev;
|
|---|
| 3184 | if ((uint64_t)RT_ABS(cNsDelta) > RT_NS_1HOUR / 2)
|
|---|
| 3185 | {
|
|---|
| 3186 | RTTIMESPEC NowAgain;
|
|---|
| 3187 | RTTimeNow(&NowAgain);
|
|---|
| 3188 | LogRel(("TMR3UtcNow: nsNow=%'RI64 nsPrev=%'RI64 -> cNsDelta=%'RI64 (offLag=%'RI64 offVirtualSync=%'RU64 offVirtualSyncGivenUp=%'RU64, NowAgain=%'RI64)\n",
|
|---|
| 3189 | RTTimeSpecGetNano(pTime), nsPrev, cNsDelta, offLag, offVirtualSync, offVirtualSyncGivenUp, RTTimeSpecGetNano(&NowAgain)));
|
|---|
| 3190 | if (pVM->tm.s.pszUtcTouchFileOnJump && nsPrev != 0)
|
|---|
| 3191 | {
|
|---|
| 3192 | RTFILE hFile;
|
|---|
| 3193 | int rc = RTFileOpen(&hFile, pVM->tm.s.pszUtcTouchFileOnJump,
|
|---|
| 3194 | RTFILE_O_WRITE | RTFILE_O_APPEND | RTFILE_O_OPEN_CREATE | RTFILE_O_DENY_NONE);
|
|---|
| 3195 | if (RT_SUCCESS(rc))
|
|---|
| 3196 | {
|
|---|
| 3197 | char szMsg[256];
|
|---|
| 3198 | size_t cch;
|
|---|
| 3199 | cch = RTStrPrintf(szMsg, sizeof(szMsg),
|
|---|
| 3200 | "TMR3UtcNow: nsNow=%'RI64 nsPrev=%'RI64 -> cNsDelta=%'RI64 (offLag=%'RI64 offVirtualSync=%'RU64 offVirtualSyncGivenUp=%'RU64, NowAgain=%'RI64)\n",
|
|---|
| 3201 | RTTimeSpecGetNano(pTime), nsPrev, cNsDelta, offLag, offVirtualSync, offVirtualSyncGivenUp, RTTimeSpecGetNano(&NowAgain));
|
|---|
| 3202 | RTFileWrite(hFile, szMsg, cch, NULL);
|
|---|
| 3203 | RTFileClose(hFile);
|
|---|
| 3204 | }
|
|---|
| 3205 | }
|
|---|
| 3206 | }
|
|---|
| 3207 |
|
|---|
| 3208 | return pTime;
|
|---|
| 3209 | }
|
|---|
| 3210 |
|
|---|
| 3211 |
|
|---|
| 3212 | /**
|
|---|
| 3213 | * Pauses all clocks except TMCLOCK_REAL.
|
|---|
| 3214 | *
|
|---|
| 3215 | * @returns VBox status code, all errors are asserted.
|
|---|
| 3216 | * @param pVM The cross context VM structure.
|
|---|
| 3217 | * @param pVCpu The cross context virtual CPU structure.
|
|---|
| 3218 | * @thread EMT corresponding to Pointer to the VMCPU.
|
|---|
| 3219 | */
|
|---|
| 3220 | VMMR3DECL(int) TMR3NotifySuspend(PVM pVM, PVMCPU pVCpu)
|
|---|
| 3221 | {
|
|---|
| 3222 | VMCPU_ASSERT_EMT(pVCpu);
|
|---|
| 3223 | PDMCritSectEnter(pVM, &pVM->tm.s.VirtualSyncLock, VERR_IGNORED); /* Paranoia: Exploiting the virtual sync lock here. */
|
|---|
| 3224 |
|
|---|
| 3225 | /*
|
|---|
| 3226 | * The shared virtual clock (includes virtual sync which is tied to it).
|
|---|
| 3227 | */
|
|---|
| 3228 | int rc = tmVirtualPauseLocked(pVM);
|
|---|
| 3229 | AssertRCReturnStmt(rc, PDMCritSectLeave(pVM, &pVM->tm.s.VirtualSyncLock), rc);
|
|---|
| 3230 |
|
|---|
| 3231 | /*
|
|---|
| 3232 | * Pause the TSC last since it is normally linked to the virtual
|
|---|
| 3233 | * sync clock, so the above code may actually stop both clocks.
|
|---|
| 3234 | */
|
|---|
| 3235 | if (!pVM->tm.s.fTSCTiedToExecution)
|
|---|
| 3236 | {
|
|---|
| 3237 | rc = tmCpuTickPauseLocked(pVM, pVCpu);
|
|---|
| 3238 | AssertRCReturnStmt(rc, PDMCritSectLeave(pVM, &pVM->tm.s.VirtualSyncLock), rc);
|
|---|
| 3239 | }
|
|---|
| 3240 |
|
|---|
| 3241 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 3242 | /*
|
|---|
| 3243 | * Update cNsTotal and stats.
|
|---|
| 3244 | */
|
|---|
| 3245 | Assert(!pVCpu->tm.s.fSuspended);
|
|---|
| 3246 | uint64_t const cNsTotalNew = RTTimeNanoTS() - pVCpu->tm.s.nsStartTotal;
|
|---|
| 3247 | uint64_t const cNsOtherNew = cNsTotalNew - pVCpu->tm.s.cNsExecuting - pVCpu->tm.s.cNsHalted;
|
|---|
| 3248 |
|
|---|
| 3249 | # if defined(VBOX_WITH_STATISTICS) || defined(VBOX_WITH_NS_ACCOUNTING_STATS)
|
|---|
| 3250 | STAM_REL_COUNTER_ADD(&pVCpu->tm.s.StatNsTotal, cNsTotalNew - pVCpu->tm.s.cNsTotalStat);
|
|---|
| 3251 | int64_t const cNsOtherNewDelta = cNsOtherNew - pVCpu->tm.s.cNsOtherStat;
|
|---|
| 3252 | if (cNsOtherNewDelta > 0)
|
|---|
| 3253 | STAM_REL_COUNTER_ADD(&pVCpu->tm.s.StatNsOther, (uint64_t)cNsOtherNewDelta);
|
|---|
| 3254 | # endif
|
|---|
| 3255 |
|
|---|
| 3256 | uint32_t uGen = ASMAtomicIncU32(&pVCpu->tm.s.uTimesGen); Assert(uGen & 1);
|
|---|
| 3257 | pVCpu->tm.s.nsStartTotal = cNsTotalNew;
|
|---|
| 3258 | pVCpu->tm.s.fSuspended = true;
|
|---|
| 3259 | pVCpu->tm.s.cNsTotalStat = cNsTotalNew;
|
|---|
| 3260 | pVCpu->tm.s.cNsOtherStat = cNsOtherNew;
|
|---|
| 3261 | ASMAtomicWriteU32(&pVCpu->tm.s.uTimesGen, (uGen | 1) + 1);
|
|---|
| 3262 | #endif
|
|---|
| 3263 |
|
|---|
| 3264 | PDMCritSectLeave(pVM, &pVM->tm.s.VirtualSyncLock);
|
|---|
| 3265 | return VINF_SUCCESS;
|
|---|
| 3266 | }
|
|---|
| 3267 |
|
|---|
| 3268 |
|
|---|
| 3269 | /**
|
|---|
| 3270 | * Resumes all clocks except TMCLOCK_REAL.
|
|---|
| 3271 | *
|
|---|
| 3272 | * @returns VBox status code, all errors are asserted.
|
|---|
| 3273 | * @param pVM The cross context VM structure.
|
|---|
| 3274 | * @param pVCpu The cross context virtual CPU structure.
|
|---|
| 3275 | * @thread EMT corresponding to Pointer to the VMCPU.
|
|---|
| 3276 | */
|
|---|
| 3277 | VMMR3DECL(int) TMR3NotifyResume(PVM pVM, PVMCPU pVCpu)
|
|---|
| 3278 | {
|
|---|
| 3279 | VMCPU_ASSERT_EMT(pVCpu);
|
|---|
| 3280 | PDMCritSectEnter(pVM, &pVM->tm.s.VirtualSyncLock, VERR_IGNORED); /* Paranoia: Exploiting the virtual sync lock here. */
|
|---|
| 3281 |
|
|---|
| 3282 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 3283 | /*
|
|---|
| 3284 | * Set u64NsTsStartTotal. There is no need to back this out if either of
|
|---|
| 3285 | * the two calls below fail.
|
|---|
| 3286 | */
|
|---|
| 3287 | uint32_t uGen = ASMAtomicIncU32(&pVCpu->tm.s.uTimesGen); Assert(uGen & 1);
|
|---|
| 3288 | pVCpu->tm.s.nsStartTotal = RTTimeNanoTS() - pVCpu->tm.s.nsStartTotal;
|
|---|
| 3289 | pVCpu->tm.s.fSuspended = false;
|
|---|
| 3290 | ASMAtomicWriteU32(&pVCpu->tm.s.uTimesGen, (uGen | 1) + 1);
|
|---|
| 3291 | #endif
|
|---|
| 3292 |
|
|---|
| 3293 | /*
|
|---|
| 3294 | * Resume the TSC first since it is normally linked to the virtual sync
|
|---|
| 3295 | * clock, so it may actually not be resumed until we've executed the code
|
|---|
| 3296 | * below.
|
|---|
| 3297 | */
|
|---|
| 3298 | if (!pVM->tm.s.fTSCTiedToExecution)
|
|---|
| 3299 | {
|
|---|
| 3300 | int rc = tmCpuTickResumeLocked(pVM, pVCpu);
|
|---|
| 3301 | AssertRCReturnStmt(rc, PDMCritSectLeave(pVM, &pVM->tm.s.VirtualSyncLock), rc);
|
|---|
| 3302 | }
|
|---|
| 3303 |
|
|---|
| 3304 | /*
|
|---|
| 3305 | * The shared virtual clock (includes virtual sync which is tied to it).
|
|---|
| 3306 | */
|
|---|
| 3307 | int rc = tmVirtualResumeLocked(pVM);
|
|---|
| 3308 |
|
|---|
| 3309 | PDMCritSectLeave(pVM, &pVM->tm.s.VirtualSyncLock);
|
|---|
| 3310 | return rc;
|
|---|
| 3311 | }
|
|---|
| 3312 |
|
|---|
| 3313 |
|
|---|
| 3314 | /**
|
|---|
| 3315 | * Sets the warp drive percent of the virtual time.
|
|---|
| 3316 | *
|
|---|
| 3317 | * @returns VBox status code.
|
|---|
| 3318 | * @param pUVM The user mode VM structure.
|
|---|
| 3319 | * @param u32Percent The new percentage. 100 means normal operation.
|
|---|
| 3320 | */
|
|---|
| 3321 | VMMDECL(int) TMR3SetWarpDrive(PUVM pUVM, uint32_t u32Percent)
|
|---|
| 3322 | {
|
|---|
| 3323 | return VMR3ReqPriorityCallWaitU(pUVM, VMCPUID_ANY, (PFNRT)tmR3SetWarpDrive, 2, pUVM, u32Percent);
|
|---|
| 3324 | }
|
|---|
| 3325 |
|
|---|
| 3326 |
|
|---|
| 3327 | /**
|
|---|
| 3328 | * EMT worker for TMR3SetWarpDrive.
|
|---|
| 3329 | *
|
|---|
| 3330 | * @returns VBox status code.
|
|---|
| 3331 | * @param pUVM The user mode VM handle.
|
|---|
| 3332 | * @param u32Percent See TMR3SetWarpDrive().
|
|---|
| 3333 | * @internal
|
|---|
| 3334 | */
|
|---|
| 3335 | static DECLCALLBACK(int) tmR3SetWarpDrive(PUVM pUVM, uint32_t u32Percent)
|
|---|
| 3336 | {
|
|---|
| 3337 | PVM pVM = pUVM->pVM;
|
|---|
| 3338 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
|---|
| 3339 | PVMCPU pVCpu = VMMGetCpu(pVM);
|
|---|
| 3340 |
|
|---|
| 3341 | /*
|
|---|
| 3342 | * Validate it.
|
|---|
| 3343 | */
|
|---|
| 3344 | AssertMsgReturn(u32Percent >= 2 && u32Percent <= 20000,
|
|---|
| 3345 | ("%RX32 is not between 2 and 20000 (inclusive).\n", u32Percent),
|
|---|
| 3346 | VERR_INVALID_PARAMETER);
|
|---|
| 3347 |
|
|---|
| 3348 | /** @todo This isn't a feature specific to virtual time, move the variables to
|
|---|
| 3349 | * TM level and make it affect TMR3UTCNow as well! */
|
|---|
| 3350 |
|
|---|
| 3351 | PDMCritSectEnter(pVM, &pVM->tm.s.VirtualSyncLock, VERR_IGNORED); /* Paranoia: Exploiting the virtual sync lock here. */
|
|---|
| 3352 |
|
|---|
| 3353 | /*
|
|---|
| 3354 | * If the time is running we'll have to pause it before we can change
|
|---|
| 3355 | * the warp drive settings.
|
|---|
| 3356 | */
|
|---|
| 3357 | bool fPaused = !!pVM->tm.s.cVirtualTicking;
|
|---|
| 3358 | if (fPaused) /** @todo this isn't really working, but wtf. */
|
|---|
| 3359 | TMR3NotifySuspend(pVM, pVCpu);
|
|---|
| 3360 |
|
|---|
| 3361 | /** @todo Should switch TM mode to virt-tsc-emulated if it isn't already! */
|
|---|
| 3362 | pVM->tm.s.u32VirtualWarpDrivePercentage = u32Percent;
|
|---|
| 3363 | pVM->tm.s.fVirtualWarpDrive = u32Percent != 100;
|
|---|
| 3364 | LogRel(("TM: u32VirtualWarpDrivePercentage=%RI32 fVirtualWarpDrive=%RTbool\n",
|
|---|
| 3365 | pVM->tm.s.u32VirtualWarpDrivePercentage, pVM->tm.s.fVirtualWarpDrive));
|
|---|
| 3366 |
|
|---|
| 3367 | if (fPaused)
|
|---|
| 3368 | TMR3NotifyResume(pVM, pVCpu);
|
|---|
| 3369 |
|
|---|
| 3370 | PDMCritSectLeave(pVM, &pVM->tm.s.VirtualSyncLock);
|
|---|
| 3371 | return VINF_SUCCESS;
|
|---|
| 3372 | }
|
|---|
| 3373 |
|
|---|
| 3374 |
|
|---|
| 3375 | /**
|
|---|
| 3376 | * Gets the current TMCLOCK_VIRTUAL time without checking
|
|---|
| 3377 | * timers or anything.
|
|---|
| 3378 | *
|
|---|
| 3379 | * @returns The timestamp.
|
|---|
| 3380 | * @param pUVM The user mode VM structure.
|
|---|
| 3381 | *
|
|---|
| 3382 | * @remarks See TMVirtualGetNoCheck.
|
|---|
| 3383 | */
|
|---|
| 3384 | VMMR3DECL(uint64_t) TMR3TimeVirtGet(PUVM pUVM)
|
|---|
| 3385 | {
|
|---|
| 3386 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT64_MAX);
|
|---|
| 3387 | PVM pVM = pUVM->pVM;
|
|---|
| 3388 | VM_ASSERT_VALID_EXT_RETURN(pVM, UINT64_MAX);
|
|---|
| 3389 | return TMVirtualGetNoCheck(pVM);
|
|---|
| 3390 | }
|
|---|
| 3391 |
|
|---|
| 3392 |
|
|---|
| 3393 | /**
|
|---|
| 3394 | * Gets the current TMCLOCK_VIRTUAL time in milliseconds without checking
|
|---|
| 3395 | * timers or anything.
|
|---|
| 3396 | *
|
|---|
| 3397 | * @returns The timestamp in milliseconds.
|
|---|
| 3398 | * @param pUVM The user mode VM structure.
|
|---|
| 3399 | *
|
|---|
| 3400 | * @remarks See TMVirtualGetNoCheck.
|
|---|
| 3401 | */
|
|---|
| 3402 | VMMR3DECL(uint64_t) TMR3TimeVirtGetMilli(PUVM pUVM)
|
|---|
| 3403 | {
|
|---|
| 3404 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT64_MAX);
|
|---|
| 3405 | PVM pVM = pUVM->pVM;
|
|---|
| 3406 | VM_ASSERT_VALID_EXT_RETURN(pVM, UINT64_MAX);
|
|---|
| 3407 | return TMVirtualToMilli(pVM, TMVirtualGetNoCheck(pVM));
|
|---|
| 3408 | }
|
|---|
| 3409 |
|
|---|
| 3410 |
|
|---|
| 3411 | /**
|
|---|
| 3412 | * Gets the current TMCLOCK_VIRTUAL time in microseconds without checking
|
|---|
| 3413 | * timers or anything.
|
|---|
| 3414 | *
|
|---|
| 3415 | * @returns The timestamp in microseconds.
|
|---|
| 3416 | * @param pUVM The user mode VM structure.
|
|---|
| 3417 | *
|
|---|
| 3418 | * @remarks See TMVirtualGetNoCheck.
|
|---|
| 3419 | */
|
|---|
| 3420 | VMMR3DECL(uint64_t) TMR3TimeVirtGetMicro(PUVM pUVM)
|
|---|
| 3421 | {
|
|---|
| 3422 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT64_MAX);
|
|---|
| 3423 | PVM pVM = pUVM->pVM;
|
|---|
| 3424 | VM_ASSERT_VALID_EXT_RETURN(pVM, UINT64_MAX);
|
|---|
| 3425 | return TMVirtualToMicro(pVM, TMVirtualGetNoCheck(pVM));
|
|---|
| 3426 | }
|
|---|
| 3427 |
|
|---|
| 3428 |
|
|---|
| 3429 | /**
|
|---|
| 3430 | * Gets the current TMCLOCK_VIRTUAL time in nanoseconds without checking
|
|---|
| 3431 | * timers or anything.
|
|---|
| 3432 | *
|
|---|
| 3433 | * @returns The timestamp in nanoseconds.
|
|---|
| 3434 | * @param pUVM The user mode VM structure.
|
|---|
| 3435 | *
|
|---|
| 3436 | * @remarks See TMVirtualGetNoCheck.
|
|---|
| 3437 | */
|
|---|
| 3438 | VMMR3DECL(uint64_t) TMR3TimeVirtGetNano(PUVM pUVM)
|
|---|
| 3439 | {
|
|---|
| 3440 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT64_MAX);
|
|---|
| 3441 | PVM pVM = pUVM->pVM;
|
|---|
| 3442 | VM_ASSERT_VALID_EXT_RETURN(pVM, UINT64_MAX);
|
|---|
| 3443 | return TMVirtualToNano(pVM, TMVirtualGetNoCheck(pVM));
|
|---|
| 3444 | }
|
|---|
| 3445 |
|
|---|
| 3446 |
|
|---|
| 3447 | /**
|
|---|
| 3448 | * Gets the current warp drive percent.
|
|---|
| 3449 | *
|
|---|
| 3450 | * @returns The warp drive percent.
|
|---|
| 3451 | * @param pUVM The user mode VM structure.
|
|---|
| 3452 | */
|
|---|
| 3453 | VMMR3DECL(uint32_t) TMR3GetWarpDrive(PUVM pUVM)
|
|---|
| 3454 | {
|
|---|
| 3455 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT32_MAX);
|
|---|
| 3456 | PVM pVM = pUVM->pVM;
|
|---|
| 3457 | VM_ASSERT_VALID_EXT_RETURN(pVM, UINT32_MAX);
|
|---|
| 3458 | return pVM->tm.s.u32VirtualWarpDrivePercentage;
|
|---|
| 3459 | }
|
|---|
| 3460 |
|
|---|
| 3461 |
|
|---|
| 3462 | #if 0 /* unused - needs a little updating after @bugref{9941}*/
|
|---|
| 3463 | /**
|
|---|
| 3464 | * Gets the performance information for one virtual CPU as seen by the VMM.
|
|---|
| 3465 | *
|
|---|
| 3466 | * The returned times covers the period where the VM is running and will be
|
|---|
| 3467 | * reset when restoring a previous VM state (at least for the time being).
|
|---|
| 3468 | *
|
|---|
| 3469 | * @retval VINF_SUCCESS on success.
|
|---|
| 3470 | * @retval VERR_NOT_IMPLEMENTED if not compiled in.
|
|---|
| 3471 | * @retval VERR_INVALID_STATE if the VM handle is bad.
|
|---|
| 3472 | * @retval VERR_INVALID_CPU_ID if idCpu is out of range.
|
|---|
| 3473 | *
|
|---|
| 3474 | * @param pVM The cross context VM structure.
|
|---|
| 3475 | * @param idCpu The ID of the virtual CPU which times to get.
|
|---|
| 3476 | * @param pcNsTotal Where to store the total run time (nano seconds) of
|
|---|
| 3477 | * the CPU, i.e. the sum of the three other returns.
|
|---|
| 3478 | * Optional.
|
|---|
| 3479 | * @param pcNsExecuting Where to store the time (nano seconds) spent
|
|---|
| 3480 | * executing guest code. Optional.
|
|---|
| 3481 | * @param pcNsHalted Where to store the time (nano seconds) spent
|
|---|
| 3482 | * halted. Optional
|
|---|
| 3483 | * @param pcNsOther Where to store the time (nano seconds) spent
|
|---|
| 3484 | * preempted by the host scheduler, on virtualization
|
|---|
| 3485 | * overhead and on other tasks.
|
|---|
| 3486 | */
|
|---|
| 3487 | VMMR3DECL(int) TMR3GetCpuLoadTimes(PVM pVM, VMCPUID idCpu, uint64_t *pcNsTotal, uint64_t *pcNsExecuting,
|
|---|
| 3488 | uint64_t *pcNsHalted, uint64_t *pcNsOther)
|
|---|
| 3489 | {
|
|---|
| 3490 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_STATE);
|
|---|
| 3491 | AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
|
|---|
| 3492 |
|
|---|
| 3493 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 3494 | /*
|
|---|
| 3495 | * Get a stable result set.
|
|---|
| 3496 | * This should be way quicker than an EMT request.
|
|---|
| 3497 | */
|
|---|
| 3498 | PVMCPU pVCpu = pVM->apCpusR3[idCpu];
|
|---|
| 3499 | uint32_t uTimesGen = ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen);
|
|---|
| 3500 | uint64_t cNsTotal = pVCpu->tm.s.cNsTotal;
|
|---|
| 3501 | uint64_t cNsExecuting = pVCpu->tm.s.cNsExecuting;
|
|---|
| 3502 | uint64_t cNsHalted = pVCpu->tm.s.cNsHalted;
|
|---|
| 3503 | uint64_t cNsOther = pVCpu->tm.s.cNsOther;
|
|---|
| 3504 | while ( (uTimesGen & 1) /* update in progress */
|
|---|
| 3505 | || uTimesGen != ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen))
|
|---|
| 3506 | {
|
|---|
| 3507 | RTThreadYield();
|
|---|
| 3508 | uTimesGen = ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen);
|
|---|
| 3509 | cNsTotal = pVCpu->tm.s.cNsTotal;
|
|---|
| 3510 | cNsExecuting = pVCpu->tm.s.cNsExecuting;
|
|---|
| 3511 | cNsHalted = pVCpu->tm.s.cNsHalted;
|
|---|
| 3512 | cNsOther = pVCpu->tm.s.cNsOther;
|
|---|
| 3513 | }
|
|---|
| 3514 |
|
|---|
| 3515 | /*
|
|---|
| 3516 | * Fill in the return values.
|
|---|
| 3517 | */
|
|---|
| 3518 | if (pcNsTotal)
|
|---|
| 3519 | *pcNsTotal = cNsTotal;
|
|---|
| 3520 | if (pcNsExecuting)
|
|---|
| 3521 | *pcNsExecuting = cNsExecuting;
|
|---|
| 3522 | if (pcNsHalted)
|
|---|
| 3523 | *pcNsHalted = cNsHalted;
|
|---|
| 3524 | if (pcNsOther)
|
|---|
| 3525 | *pcNsOther = cNsOther;
|
|---|
| 3526 |
|
|---|
| 3527 | return VINF_SUCCESS;
|
|---|
| 3528 |
|
|---|
| 3529 | #else
|
|---|
| 3530 | return VERR_NOT_IMPLEMENTED;
|
|---|
| 3531 | #endif
|
|---|
| 3532 | }
|
|---|
| 3533 | #endif /* unused */
|
|---|
| 3534 |
|
|---|
| 3535 |
|
|---|
| 3536 | /**
|
|---|
| 3537 | * Gets the performance information for one virtual CPU as seen by the VMM in
|
|---|
| 3538 | * percents.
|
|---|
| 3539 | *
|
|---|
| 3540 | * The returned times covers the period where the VM is running and will be
|
|---|
| 3541 | * reset when restoring a previous VM state (at least for the time being).
|
|---|
| 3542 | *
|
|---|
| 3543 | * @retval VINF_SUCCESS on success.
|
|---|
| 3544 | * @retval VERR_NOT_IMPLEMENTED if not compiled in.
|
|---|
| 3545 | * @retval VERR_INVALID_VM_HANDLE if the VM handle is bad.
|
|---|
| 3546 | * @retval VERR_INVALID_CPU_ID if idCpu is out of range.
|
|---|
| 3547 | *
|
|---|
| 3548 | * @param pUVM The usermode VM structure.
|
|---|
| 3549 | * @param idCpu The ID of the virtual CPU which times to get.
|
|---|
| 3550 | * @param pcMsInterval Where to store the interval of the percentages in
|
|---|
| 3551 | * milliseconds. Optional.
|
|---|
| 3552 | * @param pcPctExecuting Where to return the percentage of time spent
|
|---|
| 3553 | * executing guest code. Optional.
|
|---|
| 3554 | * @param pcPctHalted Where to return the percentage of time spent halted.
|
|---|
| 3555 | * Optional
|
|---|
| 3556 | * @param pcPctOther Where to return the percentage of time spent
|
|---|
| 3557 | * preempted by the host scheduler, on virtualization
|
|---|
| 3558 | * overhead and on other tasks.
|
|---|
| 3559 | */
|
|---|
| 3560 | VMMR3DECL(int) TMR3GetCpuLoadPercents(PUVM pUVM, VMCPUID idCpu, uint64_t *pcMsInterval, uint8_t *pcPctExecuting,
|
|---|
| 3561 | uint8_t *pcPctHalted, uint8_t *pcPctOther)
|
|---|
| 3562 | {
|
|---|
| 3563 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
|
|---|
| 3564 | PVM pVM = pUVM->pVM;
|
|---|
| 3565 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
|---|
| 3566 | AssertReturn(idCpu == VMCPUID_ALL || idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
|
|---|
| 3567 |
|
|---|
| 3568 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 3569 | TMCPULOADSTATE volatile *pState;
|
|---|
| 3570 | if (idCpu == VMCPUID_ALL)
|
|---|
| 3571 | pState = &pVM->tm.s.CpuLoad;
|
|---|
| 3572 | else
|
|---|
| 3573 | pState = &pVM->apCpusR3[idCpu]->tm.s.CpuLoad;
|
|---|
| 3574 |
|
|---|
| 3575 | if (pcMsInterval)
|
|---|
| 3576 | *pcMsInterval = RT_MS_1SEC;
|
|---|
| 3577 | if (pcPctExecuting)
|
|---|
| 3578 | *pcPctExecuting = pState->cPctExecuting;
|
|---|
| 3579 | if (pcPctHalted)
|
|---|
| 3580 | *pcPctHalted = pState->cPctHalted;
|
|---|
| 3581 | if (pcPctOther)
|
|---|
| 3582 | *pcPctOther = pState->cPctOther;
|
|---|
| 3583 |
|
|---|
| 3584 | return VINF_SUCCESS;
|
|---|
| 3585 |
|
|---|
| 3586 | #else
|
|---|
| 3587 | RT_NOREF(pcMsInterval, pcPctExecuting, pcPctHalted, pcPctOther);
|
|---|
| 3588 | return VERR_NOT_IMPLEMENTED;
|
|---|
| 3589 | #endif
|
|---|
| 3590 | }
|
|---|
| 3591 |
|
|---|
| 3592 | #ifndef VBOX_WITHOUT_NS_ACCOUNTING
|
|---|
| 3593 |
|
|---|
| 3594 | /**
|
|---|
| 3595 | * Helper for tmR3CpuLoadTimer.
|
|---|
| 3596 | *
|
|---|
| 3597 | * @param pState The state to update.
|
|---|
| 3598 | * @param cNsTotal Total time.
|
|---|
| 3599 | * @param cNsExecuting Time executing.
|
|---|
| 3600 | * @param cNsHalted Time halted.
|
|---|
| 3601 | */
|
|---|
| 3602 | DECLINLINE(void) tmR3CpuLoadTimerMakeUpdate(PTMCPULOADSTATE pState, uint64_t cNsTotal, uint64_t cNsExecuting, uint64_t cNsHalted)
|
|---|
| 3603 | {
|
|---|
| 3604 | /* Calc & update deltas */
|
|---|
| 3605 | uint64_t cNsTotalDelta = cNsTotal - pState->cNsPrevTotal;
|
|---|
| 3606 | uint64_t cNsExecutingDelta = cNsExecuting - pState->cNsPrevExecuting;
|
|---|
| 3607 | uint64_t cNsHaltedDelta = cNsHalted - pState->cNsPrevHalted;
|
|---|
| 3608 |
|
|---|
| 3609 | if (cNsExecutingDelta + cNsHaltedDelta <= cNsTotalDelta)
|
|---|
| 3610 | { /* likely */ }
|
|---|
| 3611 | else
|
|---|
| 3612 | {
|
|---|
| 3613 | /* Just adjust the executing and halted values down to match the total delta. */
|
|---|
| 3614 | uint64_t const cNsExecAndHalted = cNsExecutingDelta + cNsHaltedDelta;
|
|---|
| 3615 | uint64_t const cNsAdjust = cNsExecAndHalted - cNsTotalDelta + cNsTotalDelta / 64;
|
|---|
| 3616 | cNsExecutingDelta -= (cNsAdjust * cNsExecutingDelta + cNsExecAndHalted - 1) / cNsExecAndHalted;
|
|---|
| 3617 | cNsHaltedDelta -= (cNsAdjust * cNsHaltedDelta + cNsExecAndHalted - 1) / cNsExecAndHalted;
|
|---|
| 3618 | /*Assert(cNsExecutingDelta + cNsHaltedDelta <= cNsTotalDelta); - annoying when debugging */
|
|---|
| 3619 | }
|
|---|
| 3620 |
|
|---|
| 3621 | pState->cNsPrevExecuting = cNsExecuting;
|
|---|
| 3622 | pState->cNsPrevHalted = cNsHalted;
|
|---|
| 3623 | pState->cNsPrevTotal = cNsTotal;
|
|---|
| 3624 |
|
|---|
| 3625 | /* Calc pcts. */
|
|---|
| 3626 | uint8_t cPctExecuting, cPctHalted, cPctOther;
|
|---|
| 3627 | if (!cNsTotalDelta)
|
|---|
| 3628 | {
|
|---|
| 3629 | cPctExecuting = 0;
|
|---|
| 3630 | cPctHalted = 100;
|
|---|
| 3631 | cPctOther = 0;
|
|---|
| 3632 | }
|
|---|
| 3633 | else if (cNsTotalDelta < UINT64_MAX / 4)
|
|---|
| 3634 | {
|
|---|
| 3635 | cPctExecuting = (uint8_t)(cNsExecutingDelta * 100 / cNsTotalDelta);
|
|---|
| 3636 | cPctHalted = (uint8_t)(cNsHaltedDelta * 100 / cNsTotalDelta);
|
|---|
| 3637 | cPctOther = (uint8_t)((cNsTotalDelta - cNsExecutingDelta - cNsHaltedDelta) * 100 / cNsTotalDelta);
|
|---|
| 3638 | }
|
|---|
| 3639 | else
|
|---|
| 3640 | {
|
|---|
| 3641 | cPctExecuting = 0;
|
|---|
| 3642 | cPctHalted = 100;
|
|---|
| 3643 | cPctOther = 0;
|
|---|
| 3644 | }
|
|---|
| 3645 |
|
|---|
| 3646 | /* Update percentages: */
|
|---|
| 3647 | size_t idxHistory = pState->idxHistory + 1;
|
|---|
| 3648 | if (idxHistory >= RT_ELEMENTS(pState->aHistory))
|
|---|
| 3649 | idxHistory = 0;
|
|---|
| 3650 |
|
|---|
| 3651 | pState->cPctExecuting = cPctExecuting;
|
|---|
| 3652 | pState->cPctHalted = cPctHalted;
|
|---|
| 3653 | pState->cPctOther = cPctOther;
|
|---|
| 3654 |
|
|---|
| 3655 | pState->aHistory[idxHistory].cPctExecuting = cPctExecuting;
|
|---|
| 3656 | pState->aHistory[idxHistory].cPctHalted = cPctHalted;
|
|---|
| 3657 | pState->aHistory[idxHistory].cPctOther = cPctOther;
|
|---|
| 3658 |
|
|---|
| 3659 | pState->idxHistory = (uint16_t)idxHistory;
|
|---|
| 3660 | if (pState->cHistoryEntries < RT_ELEMENTS(pState->aHistory))
|
|---|
| 3661 | pState->cHistoryEntries++;
|
|---|
| 3662 | }
|
|---|
| 3663 |
|
|---|
| 3664 |
|
|---|
| 3665 | /**
|
|---|
| 3666 | * @callback_method_impl{FNTMTIMERINT,
|
|---|
| 3667 | * Timer callback that calculates the CPU load since the last
|
|---|
| 3668 | * time it was called.}
|
|---|
| 3669 | */
|
|---|
| 3670 | static DECLCALLBACK(void) tmR3CpuLoadTimer(PVM pVM, TMTIMERHANDLE hTimer, void *pvUser)
|
|---|
| 3671 | {
|
|---|
| 3672 | /*
|
|---|
| 3673 | * Re-arm the timer first.
|
|---|
| 3674 | */
|
|---|
| 3675 | int rc = TMTimerSetMillies(pVM, hTimer, 1000);
|
|---|
| 3676 | AssertLogRelRC(rc);
|
|---|
| 3677 | NOREF(pvUser);
|
|---|
| 3678 |
|
|---|
| 3679 | /*
|
|---|
| 3680 | * Update the values for each CPU.
|
|---|
| 3681 | */
|
|---|
| 3682 | uint64_t cNsTotalAll = 0;
|
|---|
| 3683 | uint64_t cNsExecutingAll = 0;
|
|---|
| 3684 | uint64_t cNsHaltedAll = 0;
|
|---|
| 3685 | for (VMCPUID iCpu = 0; iCpu < pVM->cCpus; iCpu++)
|
|---|
| 3686 | {
|
|---|
| 3687 | PVMCPU pVCpu = pVM->apCpusR3[iCpu];
|
|---|
| 3688 |
|
|---|
| 3689 | /* Try get a stable data set. */
|
|---|
| 3690 | uint32_t cTries = 3;
|
|---|
| 3691 | uint64_t nsNow = RTTimeNanoTS();
|
|---|
| 3692 | uint32_t uTimesGen = ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen);
|
|---|
| 3693 | bool fSuspended = pVCpu->tm.s.fSuspended;
|
|---|
| 3694 | uint64_t nsStartTotal = pVCpu->tm.s.nsStartTotal;
|
|---|
| 3695 | uint64_t cNsExecuting = pVCpu->tm.s.cNsExecuting;
|
|---|
| 3696 | uint64_t cNsHalted = pVCpu->tm.s.cNsHalted;
|
|---|
| 3697 | while (RT_UNLIKELY( (uTimesGen & 1) /* update in progress */
|
|---|
| 3698 | || uTimesGen != ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen)))
|
|---|
| 3699 | {
|
|---|
| 3700 | if (!--cTries)
|
|---|
| 3701 | break;
|
|---|
| 3702 | ASMNopPause();
|
|---|
| 3703 | nsNow = RTTimeNanoTS();
|
|---|
| 3704 | uTimesGen = ASMAtomicReadU32(&pVCpu->tm.s.uTimesGen);
|
|---|
| 3705 | fSuspended = pVCpu->tm.s.fSuspended;
|
|---|
| 3706 | nsStartTotal = pVCpu->tm.s.nsStartTotal;
|
|---|
| 3707 | cNsExecuting = pVCpu->tm.s.cNsExecuting;
|
|---|
| 3708 | cNsHalted = pVCpu->tm.s.cNsHalted;
|
|---|
| 3709 | }
|
|---|
| 3710 |
|
|---|
| 3711 | /* Totals */
|
|---|
| 3712 | uint64_t cNsTotal = fSuspended ? nsStartTotal : nsNow - nsStartTotal;
|
|---|
| 3713 | cNsTotalAll += cNsTotal;
|
|---|
| 3714 | cNsExecutingAll += cNsExecuting;
|
|---|
| 3715 | cNsHaltedAll += cNsHalted;
|
|---|
| 3716 |
|
|---|
| 3717 | /* Calc the PCTs and update the state. */
|
|---|
| 3718 | tmR3CpuLoadTimerMakeUpdate(&pVCpu->tm.s.CpuLoad, cNsTotal, cNsExecuting, cNsHalted);
|
|---|
| 3719 |
|
|---|
| 3720 | /* Tell the VCpu to update the other and total stat members. */
|
|---|
| 3721 | ASMAtomicWriteBool(&pVCpu->tm.s.fUpdateStats, true);
|
|---|
| 3722 | }
|
|---|
| 3723 |
|
|---|
| 3724 | /*
|
|---|
| 3725 | * Update the value for all the CPUs.
|
|---|
| 3726 | */
|
|---|
| 3727 | tmR3CpuLoadTimerMakeUpdate(&pVM->tm.s.CpuLoad, cNsTotalAll, cNsExecutingAll, cNsHaltedAll);
|
|---|
| 3728 |
|
|---|
| 3729 | }
|
|---|
| 3730 |
|
|---|
| 3731 | #endif /* !VBOX_WITHOUT_NS_ACCOUNTING */
|
|---|
| 3732 |
|
|---|
| 3733 |
|
|---|
| 3734 | /**
|
|---|
| 3735 | * @callback_method_impl{PFNVMMEMTRENDEZVOUS,
|
|---|
| 3736 | * Worker for TMR3CpuTickParavirtEnable}
|
|---|
| 3737 | */
|
|---|
| 3738 | static DECLCALLBACK(VBOXSTRICTRC) tmR3CpuTickParavirtEnable(PVM pVM, PVMCPU pVCpuEmt, void *pvData)
|
|---|
| 3739 | {
|
|---|
| 3740 | AssertPtr(pVM); Assert(pVM->tm.s.fTSCModeSwitchAllowed); NOREF(pVCpuEmt); NOREF(pvData);
|
|---|
| 3741 | Assert(pVM->tm.s.enmTSCMode != TMTSCMODE_NATIVE_API); /** @todo figure out NEM/win and paravirt */
|
|---|
| 3742 | Assert(tmR3HasFixedTSC(pVM));
|
|---|
| 3743 |
|
|---|
| 3744 | if (pVM->tm.s.enmTSCMode != TMTSCMODE_REAL_TSC_OFFSET)
|
|---|
| 3745 | {
|
|---|
| 3746 | /*
|
|---|
| 3747 | * The return value of TMCpuTickGet() and the guest's TSC value for each
|
|---|
| 3748 | * CPU must remain constant across the TM TSC mode-switch. Thus we have
|
|---|
| 3749 | * the following equation (new/old signifies the new/old tsc modes):
|
|---|
| 3750 | * uNewTsc = uOldTsc
|
|---|
| 3751 | *
|
|---|
| 3752 | * Where (see tmCpuTickGetInternal):
|
|---|
| 3753 | * uOldTsc = uRawOldTsc - offTscRawSrcOld
|
|---|
| 3754 | * uNewTsc = uRawNewTsc - offTscRawSrcNew
|
|---|
| 3755 | *
|
|---|
| 3756 | * Solve it for offTscRawSrcNew without replacing uOldTsc:
|
|---|
| 3757 | * uRawNewTsc - offTscRawSrcNew = uOldTsc
|
|---|
| 3758 | * => -offTscRawSrcNew = uOldTsc - uRawNewTsc
|
|---|
| 3759 | * => offTscRawSrcNew = uRawNewTsc - uOldTsc
|
|---|
| 3760 | */
|
|---|
| 3761 | uint64_t uRawOldTsc = tmR3CpuTickGetRawVirtualNoCheck(pVM);
|
|---|
| 3762 | uint64_t uRawNewTsc = SUPReadTsc() * pVM->tm.s.u8TSCMultiplier;
|
|---|
| 3763 | uint32_t cCpus = pVM->cCpus;
|
|---|
| 3764 | for (uint32_t i = 0; i < cCpus; i++)
|
|---|
| 3765 | {
|
|---|
| 3766 | PVMCPU pVCpu = pVM->apCpusR3[i];
|
|---|
| 3767 | uint64_t uOldTsc = uRawOldTsc - pVCpu->tm.s.offTSCRawSrc;
|
|---|
| 3768 | pVCpu->tm.s.offTSCRawSrc = uRawNewTsc - uOldTsc;
|
|---|
| 3769 | Assert(uRawNewTsc - pVCpu->tm.s.offTSCRawSrc >= uOldTsc); /* paranoia^256 */
|
|---|
| 3770 | }
|
|---|
| 3771 |
|
|---|
| 3772 | LogRel(("TM: Switching TSC mode from '%s' to '%s'\n", tmR3GetTSCModeNameEx(pVM->tm.s.enmTSCMode),
|
|---|
| 3773 | tmR3GetTSCModeNameEx(TMTSCMODE_REAL_TSC_OFFSET)));
|
|---|
| 3774 | pVM->tm.s.enmTSCMode = TMTSCMODE_REAL_TSC_OFFSET;
|
|---|
| 3775 | }
|
|---|
| 3776 | return VINF_SUCCESS;
|
|---|
| 3777 | }
|
|---|
| 3778 |
|
|---|
| 3779 |
|
|---|
| 3780 | /**
|
|---|
| 3781 | * Notify TM that the guest has enabled usage of a paravirtualized TSC.
|
|---|
| 3782 | *
|
|---|
| 3783 | * This may perform a EMT rendezvous and change the TSC virtualization mode.
|
|---|
| 3784 | *
|
|---|
| 3785 | * @returns VBox status code.
|
|---|
| 3786 | * @param pVM The cross context VM structure.
|
|---|
| 3787 | */
|
|---|
| 3788 | VMMR3_INT_DECL(int) TMR3CpuTickParavirtEnable(PVM pVM)
|
|---|
| 3789 | {
|
|---|
| 3790 | int rc = VINF_SUCCESS;
|
|---|
| 3791 | if (pVM->tm.s.fTSCModeSwitchAllowed)
|
|---|
| 3792 | rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE, tmR3CpuTickParavirtEnable, NULL);
|
|---|
| 3793 | else
|
|---|
| 3794 | LogRel(("TM: Host/VM is not suitable for using TSC mode '%s', request to change TSC mode ignored\n",
|
|---|
| 3795 | tmR3GetTSCModeNameEx(TMTSCMODE_REAL_TSC_OFFSET)));
|
|---|
| 3796 | pVM->tm.s.fParavirtTscEnabled = true;
|
|---|
| 3797 | return rc;
|
|---|
| 3798 | }
|
|---|
| 3799 |
|
|---|
| 3800 |
|
|---|
| 3801 | /**
|
|---|
| 3802 | * @callback_method_impl{PFNVMMEMTRENDEZVOUS,
|
|---|
| 3803 | * Worker for TMR3CpuTickParavirtDisable}
|
|---|
| 3804 | */
|
|---|
| 3805 | static DECLCALLBACK(VBOXSTRICTRC) tmR3CpuTickParavirtDisable(PVM pVM, PVMCPU pVCpuEmt, void *pvData)
|
|---|
| 3806 | {
|
|---|
| 3807 | AssertPtr(pVM); Assert(pVM->tm.s.fTSCModeSwitchAllowed); NOREF(pVCpuEmt);
|
|---|
| 3808 | RT_NOREF1(pvData);
|
|---|
| 3809 |
|
|---|
| 3810 | if ( pVM->tm.s.enmTSCMode == TMTSCMODE_REAL_TSC_OFFSET
|
|---|
| 3811 | && pVM->tm.s.enmTSCMode != pVM->tm.s.enmOriginalTSCMode)
|
|---|
| 3812 | {
|
|---|
| 3813 | /*
|
|---|
| 3814 | * See tmR3CpuTickParavirtEnable for an explanation of the conversion math.
|
|---|
| 3815 | */
|
|---|
| 3816 | uint64_t uRawOldTsc = SUPReadTsc() * pVM->tm.s.u8TSCMultiplier;
|
|---|
| 3817 | uint64_t uRawNewTsc = tmR3CpuTickGetRawVirtualNoCheck(pVM);
|
|---|
| 3818 | uint32_t cCpus = pVM->cCpus;
|
|---|
| 3819 | for (uint32_t i = 0; i < cCpus; i++)
|
|---|
| 3820 | {
|
|---|
| 3821 | PVMCPU pVCpu = pVM->apCpusR3[i];
|
|---|
| 3822 | uint64_t uOldTsc = uRawOldTsc - pVCpu->tm.s.offTSCRawSrc;
|
|---|
| 3823 | pVCpu->tm.s.offTSCRawSrc = uRawNewTsc - uOldTsc;
|
|---|
| 3824 | Assert(uRawNewTsc - pVCpu->tm.s.offTSCRawSrc >= uOldTsc); /* paranoia^256 */
|
|---|
| 3825 |
|
|---|
| 3826 | /* Update the last-seen tick here as we havent't been updating it (as we don't
|
|---|
| 3827 | need it) while in pure TSC-offsetting mode. */
|
|---|
| 3828 | pVCpu->tm.s.u64TSCLastSeen = uOldTsc;
|
|---|
| 3829 | }
|
|---|
| 3830 |
|
|---|
| 3831 | LogRel(("TM: Switching TSC mode from '%s' to '%s'\n", tmR3GetTSCModeNameEx(pVM->tm.s.enmTSCMode),
|
|---|
| 3832 | tmR3GetTSCModeNameEx(pVM->tm.s.enmOriginalTSCMode)));
|
|---|
| 3833 | pVM->tm.s.enmTSCMode = pVM->tm.s.enmOriginalTSCMode;
|
|---|
| 3834 | }
|
|---|
| 3835 | return VINF_SUCCESS;
|
|---|
| 3836 | }
|
|---|
| 3837 |
|
|---|
| 3838 |
|
|---|
| 3839 | /**
|
|---|
| 3840 | * Notify TM that the guest has disabled usage of a paravirtualized TSC.
|
|---|
| 3841 | *
|
|---|
| 3842 | * If TMR3CpuTickParavirtEnable() changed the TSC virtualization mode, this will
|
|---|
| 3843 | * perform an EMT rendezvous to revert those changes.
|
|---|
| 3844 | *
|
|---|
| 3845 | * @returns VBox status code.
|
|---|
| 3846 | * @param pVM The cross context VM structure.
|
|---|
| 3847 | */
|
|---|
| 3848 | VMMR3_INT_DECL(int) TMR3CpuTickParavirtDisable(PVM pVM)
|
|---|
| 3849 | {
|
|---|
| 3850 | int rc = VINF_SUCCESS;
|
|---|
| 3851 | if (pVM->tm.s.fTSCModeSwitchAllowed)
|
|---|
| 3852 | rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE, tmR3CpuTickParavirtDisable, NULL);
|
|---|
| 3853 | pVM->tm.s.fParavirtTscEnabled = false;
|
|---|
| 3854 | return rc;
|
|---|
| 3855 | }
|
|---|
| 3856 |
|
|---|
| 3857 |
|
|---|
| 3858 | /**
|
|---|
| 3859 | * Check whether the guest can be presented a fixed rate & monotonic TSC.
|
|---|
| 3860 | *
|
|---|
| 3861 | * @returns true if TSC is stable, false otherwise.
|
|---|
| 3862 | * @param pVM The cross context VM structure.
|
|---|
| 3863 | * @param fWithParavirtEnabled Whether it's fixed & monotonic when
|
|---|
| 3864 | * paravirt. TSC is enabled or not.
|
|---|
| 3865 | *
|
|---|
| 3866 | * @remarks Must be called only after TMR3InitFinalize().
|
|---|
| 3867 | */
|
|---|
| 3868 | VMMR3_INT_DECL(bool) TMR3CpuTickIsFixedRateMonotonic(PVM pVM, bool fWithParavirtEnabled)
|
|---|
| 3869 | {
|
|---|
| 3870 | /** @todo figure out what exactly we want here later. */
|
|---|
| 3871 | NOREF(fWithParavirtEnabled);
|
|---|
| 3872 | PSUPGLOBALINFOPAGE pGip;
|
|---|
| 3873 | return tmR3HasFixedTSC(pVM) /* Host has fixed-rate TSC. */
|
|---|
| 3874 | && ( (pGip = g_pSUPGlobalInfoPage) == NULL /* Can be NULL in driverless mode. */
|
|---|
| 3875 | || (pGip->u32Mode != SUPGIPMODE_ASYNC_TSC)); /* GIP thinks it's monotonic. */
|
|---|
| 3876 | }
|
|---|
| 3877 |
|
|---|
| 3878 |
|
|---|
| 3879 | /**
|
|---|
| 3880 | * Gets the 5 char clock name for the info tables.
|
|---|
| 3881 | *
|
|---|
| 3882 | * @returns The name.
|
|---|
| 3883 | * @param enmClock The clock.
|
|---|
| 3884 | */
|
|---|
| 3885 | DECLINLINE(const char *) tmR3Get5CharClockName(TMCLOCK enmClock)
|
|---|
| 3886 | {
|
|---|
| 3887 | switch (enmClock)
|
|---|
| 3888 | {
|
|---|
| 3889 | case TMCLOCK_REAL: return "Real ";
|
|---|
| 3890 | case TMCLOCK_VIRTUAL: return "Virt ";
|
|---|
| 3891 | case TMCLOCK_VIRTUAL_SYNC: return "VrSy ";
|
|---|
| 3892 | case TMCLOCK_TSC: return "TSC ";
|
|---|
| 3893 | default: return "Bad ";
|
|---|
| 3894 | }
|
|---|
| 3895 | }
|
|---|
| 3896 |
|
|---|
| 3897 |
|
|---|
| 3898 | /**
|
|---|
| 3899 | * Display all timers.
|
|---|
| 3900 | *
|
|---|
| 3901 | * @param pVM The cross context VM structure.
|
|---|
| 3902 | * @param pHlp The info helpers.
|
|---|
| 3903 | * @param pszArgs Arguments, ignored.
|
|---|
| 3904 | */
|
|---|
| 3905 | static DECLCALLBACK(void) tmR3TimerInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
|
|---|
| 3906 | {
|
|---|
| 3907 | NOREF(pszArgs);
|
|---|
| 3908 | pHlp->pfnPrintf(pHlp,
|
|---|
| 3909 | "Timers (pVM=%p)\n"
|
|---|
| 3910 | "%.*s %.*s %.*s %.*s Clock %18s %18s %6s %-25s Description\n",
|
|---|
| 3911 | pVM,
|
|---|
| 3912 | sizeof(RTR3PTR) * 2, "pTimerR3 ",
|
|---|
| 3913 | sizeof(int32_t) * 2, "offNext ",
|
|---|
| 3914 | sizeof(int32_t) * 2, "offPrev ",
|
|---|
| 3915 | sizeof(int32_t) * 2, "offSched ",
|
|---|
| 3916 | "Time",
|
|---|
| 3917 | "Expire",
|
|---|
| 3918 | "HzHint",
|
|---|
| 3919 | "State");
|
|---|
| 3920 | for (uint32_t idxQueue = 0; idxQueue < RT_ELEMENTS(pVM->tm.s.aTimerQueues); idxQueue++)
|
|---|
| 3921 | {
|
|---|
| 3922 | PTMTIMERQUEUE const pQueue = &pVM->tm.s.aTimerQueues[idxQueue];
|
|---|
| 3923 | const char * const pszClock = tmR3Get5CharClockName(pQueue->enmClock);
|
|---|
| 3924 | PDMCritSectRwEnterShared(pVM, &pQueue->AllocLock, VERR_IGNORED);
|
|---|
| 3925 | for (uint32_t idxTimer = 0; idxTimer < pQueue->cTimersAlloc; idxTimer++)
|
|---|
| 3926 | {
|
|---|
| 3927 | PTMTIMER pTimer = &pQueue->paTimers[idxTimer];
|
|---|
| 3928 | TMTIMERSTATE enmState = pTimer->enmState;
|
|---|
| 3929 | if (enmState < TMTIMERSTATE_DESTROY && enmState > TMTIMERSTATE_INVALID)
|
|---|
| 3930 | pHlp->pfnPrintf(pHlp,
|
|---|
| 3931 | "%p %08RX32 %08RX32 %08RX32 %s %18RU64 %18RU64 %6RU32 %-25s %s\n",
|
|---|
| 3932 | pTimer,
|
|---|
| 3933 | pTimer->idxNext,
|
|---|
| 3934 | pTimer->idxPrev,
|
|---|
| 3935 | pTimer->idxScheduleNext,
|
|---|
| 3936 | pszClock,
|
|---|
| 3937 | TMTimerGet(pVM, pTimer->hSelf),
|
|---|
| 3938 | pTimer->u64Expire,
|
|---|
| 3939 | pTimer->uHzHint,
|
|---|
| 3940 | tmTimerState(enmState),
|
|---|
| 3941 | pTimer->szName);
|
|---|
| 3942 | }
|
|---|
| 3943 | PDMCritSectRwLeaveShared(pVM, &pQueue->AllocLock);
|
|---|
| 3944 | }
|
|---|
| 3945 | }
|
|---|
| 3946 |
|
|---|
| 3947 |
|
|---|
| 3948 | /**
|
|---|
| 3949 | * Display all active timers.
|
|---|
| 3950 | *
|
|---|
| 3951 | * @param pVM The cross context VM structure.
|
|---|
| 3952 | * @param pHlp The info helpers.
|
|---|
| 3953 | * @param pszArgs Arguments, ignored.
|
|---|
| 3954 | */
|
|---|
| 3955 | static DECLCALLBACK(void) tmR3TimerInfoActive(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
|
|---|
| 3956 | {
|
|---|
| 3957 | NOREF(pszArgs);
|
|---|
| 3958 | pHlp->pfnPrintf(pHlp,
|
|---|
| 3959 | "Active Timers (pVM=%p)\n"
|
|---|
| 3960 | "%.*s %.*s %.*s %.*s Clock %18s %18s %6s %-25s Description\n",
|
|---|
| 3961 | pVM,
|
|---|
| 3962 | sizeof(RTR3PTR) * 2, "pTimerR3 ",
|
|---|
| 3963 | sizeof(int32_t) * 2, "offNext ",
|
|---|
| 3964 | sizeof(int32_t) * 2, "offPrev ",
|
|---|
| 3965 | sizeof(int32_t) * 2, "offSched ",
|
|---|
| 3966 | "Time",
|
|---|
| 3967 | "Expire",
|
|---|
| 3968 | "HzHint",
|
|---|
| 3969 | "State");
|
|---|
| 3970 | for (uint32_t idxQueue = 0; idxQueue < RT_ELEMENTS(pVM->tm.s.aTimerQueues); idxQueue++)
|
|---|
| 3971 | {
|
|---|
| 3972 | PTMTIMERQUEUE const pQueue = &pVM->tm.s.aTimerQueues[idxQueue];
|
|---|
| 3973 | const char * const pszClock = tmR3Get5CharClockName(pQueue->enmClock);
|
|---|
| 3974 | PDMCritSectRwEnterShared(pVM, &pQueue->AllocLock, VERR_IGNORED);
|
|---|
| 3975 | PDMCritSectEnter(pVM, &pQueue->TimerLock, VERR_IGNORED);
|
|---|
| 3976 |
|
|---|
| 3977 | for (PTMTIMERR3 pTimer = tmTimerQueueGetHead(pQueue, pQueue);
|
|---|
| 3978 | pTimer;
|
|---|
| 3979 | pTimer = tmTimerGetNext(pQueue, pTimer))
|
|---|
| 3980 | {
|
|---|
| 3981 | pHlp->pfnPrintf(pHlp,
|
|---|
| 3982 | "%p %08RX32 %08RX32 %08RX32 %s %18RU64 %18RU64 %6RU32 %-25s %s\n",
|
|---|
| 3983 | pTimer,
|
|---|
| 3984 | pTimer->idxNext,
|
|---|
| 3985 | pTimer->idxPrev,
|
|---|
| 3986 | pTimer->idxScheduleNext,
|
|---|
| 3987 | pszClock,
|
|---|
| 3988 | TMTimerGet(pVM, pTimer->hSelf),
|
|---|
| 3989 | pTimer->u64Expire,
|
|---|
| 3990 | pTimer->uHzHint,
|
|---|
| 3991 | tmTimerState(pTimer->enmState),
|
|---|
| 3992 | pTimer->szName);
|
|---|
| 3993 | }
|
|---|
| 3994 |
|
|---|
| 3995 | PDMCritSectLeave(pVM, &pQueue->TimerLock);
|
|---|
| 3996 | PDMCritSectRwLeaveShared(pVM, &pQueue->AllocLock);
|
|---|
| 3997 | }
|
|---|
| 3998 | }
|
|---|
| 3999 |
|
|---|
| 4000 |
|
|---|
| 4001 | /**
|
|---|
| 4002 | * Display all clocks.
|
|---|
| 4003 | *
|
|---|
| 4004 | * @param pVM The cross context VM structure.
|
|---|
| 4005 | * @param pHlp The info helpers.
|
|---|
| 4006 | * @param pszArgs Arguments, ignored.
|
|---|
| 4007 | */
|
|---|
| 4008 | static DECLCALLBACK(void) tmR3InfoClocks(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
|
|---|
| 4009 | {
|
|---|
| 4010 | NOREF(pszArgs);
|
|---|
| 4011 |
|
|---|
| 4012 | /*
|
|---|
| 4013 | * Read the times first to avoid more than necessary time variation.
|
|---|
| 4014 | */
|
|---|
| 4015 | const uint64_t u64Virtual = TMVirtualGet(pVM);
|
|---|
| 4016 | const uint64_t u64VirtualSync = TMVirtualSyncGet(pVM);
|
|---|
| 4017 | const uint64_t u64Real = TMRealGet(pVM);
|
|---|
| 4018 |
|
|---|
| 4019 | for (VMCPUID i = 0; i < pVM->cCpus; i++)
|
|---|
| 4020 | {
|
|---|
| 4021 | PVMCPU pVCpu = pVM->apCpusR3[i];
|
|---|
| 4022 | uint64_t u64TSC = TMCpuTickGet(pVCpu);
|
|---|
| 4023 |
|
|---|
| 4024 | /*
|
|---|
| 4025 | * TSC
|
|---|
| 4026 | */
|
|---|
| 4027 | pHlp->pfnPrintf(pHlp,
|
|---|
| 4028 | "Cpu Tick: %18RU64 (%#016RX64) %RU64Hz %s - virtualized",
|
|---|
| 4029 | u64TSC, u64TSC, TMCpuTicksPerSecond(pVM),
|
|---|
| 4030 | pVCpu->tm.s.fTSCTicking ? "ticking" : "paused");
|
|---|
| 4031 | if (pVM->tm.s.enmTSCMode == TMTSCMODE_REAL_TSC_OFFSET)
|
|---|
| 4032 | {
|
|---|
| 4033 | pHlp->pfnPrintf(pHlp, " - real tsc offset");
|
|---|
| 4034 | if (pVCpu->tm.s.offTSCRawSrc)
|
|---|
| 4035 | pHlp->pfnPrintf(pHlp, "\n offset %RU64", pVCpu->tm.s.offTSCRawSrc);
|
|---|
| 4036 | }
|
|---|
| 4037 | else if (pVM->tm.s.enmTSCMode == TMTSCMODE_NATIVE_API)
|
|---|
| 4038 | pHlp->pfnPrintf(pHlp, " - native api");
|
|---|
| 4039 | else
|
|---|
| 4040 | pHlp->pfnPrintf(pHlp, " - virtual clock");
|
|---|
| 4041 | pHlp->pfnPrintf(pHlp, "\n");
|
|---|
| 4042 | }
|
|---|
| 4043 |
|
|---|
| 4044 | /*
|
|---|
| 4045 | * virtual
|
|---|
| 4046 | */
|
|---|
| 4047 | pHlp->pfnPrintf(pHlp,
|
|---|
| 4048 | " Virtual: %18RU64 (%#016RX64) %RU64Hz %s",
|
|---|
| 4049 | u64Virtual, u64Virtual, TMVirtualGetFreq(pVM),
|
|---|
| 4050 | pVM->tm.s.cVirtualTicking ? "ticking" : "paused");
|
|---|
| 4051 | if (pVM->tm.s.fVirtualWarpDrive)
|
|---|
| 4052 | pHlp->pfnPrintf(pHlp, " WarpDrive %RU32 %%", pVM->tm.s.u32VirtualWarpDrivePercentage);
|
|---|
| 4053 | pHlp->pfnPrintf(pHlp, "\n");
|
|---|
| 4054 |
|
|---|
| 4055 | /*
|
|---|
| 4056 | * virtual sync
|
|---|
| 4057 | */
|
|---|
| 4058 | pHlp->pfnPrintf(pHlp,
|
|---|
| 4059 | "VirtSync: %18RU64 (%#016RX64) %s%s",
|
|---|
| 4060 | u64VirtualSync, u64VirtualSync,
|
|---|
| 4061 | pVM->tm.s.fVirtualSyncTicking ? "ticking" : "paused",
|
|---|
| 4062 | pVM->tm.s.fVirtualSyncCatchUp ? " - catchup" : "");
|
|---|
| 4063 | if (pVM->tm.s.offVirtualSync)
|
|---|
| 4064 | {
|
|---|
| 4065 | pHlp->pfnPrintf(pHlp, "\n offset %RU64", pVM->tm.s.offVirtualSync);
|
|---|
| 4066 | if (pVM->tm.s.u32VirtualSyncCatchUpPercentage)
|
|---|
| 4067 | pHlp->pfnPrintf(pHlp, " catch-up rate %u %%", pVM->tm.s.u32VirtualSyncCatchUpPercentage);
|
|---|
| 4068 | }
|
|---|
| 4069 | pHlp->pfnPrintf(pHlp, "\n");
|
|---|
| 4070 |
|
|---|
| 4071 | /*
|
|---|
| 4072 | * real
|
|---|
| 4073 | */
|
|---|
| 4074 | pHlp->pfnPrintf(pHlp,
|
|---|
| 4075 | " Real: %18RU64 (%#016RX64) %RU64Hz\n",
|
|---|
| 4076 | u64Real, u64Real, TMRealGetFreq(pVM));
|
|---|
| 4077 | }
|
|---|
| 4078 |
|
|---|
| 4079 |
|
|---|
| 4080 | /**
|
|---|
| 4081 | * Helper for tmR3InfoCpuLoad that adjust @a uPct to the given graph width.
|
|---|
| 4082 | */
|
|---|
| 4083 | DECLINLINE(size_t) tmR3InfoCpuLoadAdjustWidth(size_t uPct, size_t cchWidth)
|
|---|
| 4084 | {
|
|---|
| 4085 | if (cchWidth != 100)
|
|---|
| 4086 | uPct = (size_t)(((double)uPct + 0.5) * ((double)cchWidth / 100.0));
|
|---|
| 4087 | return uPct;
|
|---|
| 4088 | }
|
|---|
| 4089 |
|
|---|
| 4090 |
|
|---|
| 4091 | /**
|
|---|
| 4092 | * @callback_method_impl{FNDBGFINFOARGVINT}
|
|---|
| 4093 | */
|
|---|
| 4094 | static DECLCALLBACK(void) tmR3InfoCpuLoad(PVM pVM, PCDBGFINFOHLP pHlp, int cArgs, char **papszArgs)
|
|---|
| 4095 | {
|
|---|
| 4096 | char szTmp[1024];
|
|---|
| 4097 |
|
|---|
| 4098 | /*
|
|---|
| 4099 | * Parse arguments.
|
|---|
| 4100 | */
|
|---|
| 4101 | PTMCPULOADSTATE pState = &pVM->tm.s.CpuLoad;
|
|---|
| 4102 | VMCPUID idCpu = 0;
|
|---|
| 4103 | bool fAllCpus = true;
|
|---|
| 4104 | bool fExpGraph = true;
|
|---|
| 4105 | uint32_t cchWidth = 80;
|
|---|
| 4106 | uint32_t cPeriods = RT_ELEMENTS(pState->aHistory);
|
|---|
| 4107 | uint32_t cRows = 60;
|
|---|
| 4108 |
|
|---|
| 4109 | static const RTGETOPTDEF s_aOptions[] =
|
|---|
| 4110 | {
|
|---|
| 4111 | { "all", 'a', RTGETOPT_REQ_NOTHING },
|
|---|
| 4112 | { "cpu", 'c', RTGETOPT_REQ_UINT32 },
|
|---|
| 4113 | { "periods", 'p', RTGETOPT_REQ_UINT32 },
|
|---|
| 4114 | { "rows", 'r', RTGETOPT_REQ_UINT32 },
|
|---|
| 4115 | { "uni", 'u', RTGETOPT_REQ_NOTHING },
|
|---|
| 4116 | { "uniform", 'u', RTGETOPT_REQ_NOTHING },
|
|---|
| 4117 | { "width", 'w', RTGETOPT_REQ_UINT32 },
|
|---|
| 4118 | { "exp", 'x', RTGETOPT_REQ_NOTHING },
|
|---|
| 4119 | { "exponential", 'x', RTGETOPT_REQ_NOTHING },
|
|---|
| 4120 | };
|
|---|
| 4121 |
|
|---|
| 4122 | RTGETOPTSTATE State;
|
|---|
| 4123 | int rc = RTGetOptInit(&State, cArgs, papszArgs, s_aOptions, RT_ELEMENTS(s_aOptions), 0, 0 /*fFlags*/);
|
|---|
| 4124 | AssertRC(rc);
|
|---|
| 4125 |
|
|---|
| 4126 | RTGETOPTUNION ValueUnion;
|
|---|
| 4127 | while ((rc = RTGetOpt(&State, &ValueUnion)) != 0)
|
|---|
| 4128 | {
|
|---|
| 4129 | switch (rc)
|
|---|
| 4130 | {
|
|---|
| 4131 | case 'a':
|
|---|
| 4132 | pState = &pVM->apCpusR3[0]->tm.s.CpuLoad;
|
|---|
| 4133 | idCpu = 0;
|
|---|
| 4134 | fAllCpus = true;
|
|---|
| 4135 | break;
|
|---|
| 4136 | case 'c':
|
|---|
| 4137 | if (ValueUnion.u32 < pVM->cCpus)
|
|---|
| 4138 | {
|
|---|
| 4139 | pState = &pVM->apCpusR3[ValueUnion.u32]->tm.s.CpuLoad;
|
|---|
| 4140 | idCpu = ValueUnion.u32;
|
|---|
| 4141 | }
|
|---|
| 4142 | else
|
|---|
| 4143 | {
|
|---|
| 4144 | pState = &pVM->tm.s.CpuLoad;
|
|---|
| 4145 | idCpu = VMCPUID_ALL;
|
|---|
| 4146 | }
|
|---|
| 4147 | fAllCpus = false;
|
|---|
| 4148 | break;
|
|---|
| 4149 | case 'p':
|
|---|
| 4150 | cPeriods = RT_MIN(RT_MAX(ValueUnion.u32, 1), RT_ELEMENTS(pState->aHistory));
|
|---|
| 4151 | break;
|
|---|
| 4152 | case 'r':
|
|---|
| 4153 | cRows = RT_MIN(RT_MAX(ValueUnion.u32, 5), RT_ELEMENTS(pState->aHistory));
|
|---|
| 4154 | break;
|
|---|
| 4155 | case 'w':
|
|---|
| 4156 | cchWidth = RT_MIN(RT_MAX(ValueUnion.u32, 10), sizeof(szTmp) - 32);
|
|---|
| 4157 | break;
|
|---|
| 4158 | case 'x':
|
|---|
| 4159 | fExpGraph = true;
|
|---|
| 4160 | break;
|
|---|
| 4161 | case 'u':
|
|---|
| 4162 | fExpGraph = false;
|
|---|
| 4163 | break;
|
|---|
| 4164 | case 'h':
|
|---|
| 4165 | pHlp->pfnPrintf(pHlp,
|
|---|
| 4166 | "Usage: cpuload [parameters]\n"
|
|---|
| 4167 | " all, -a\n"
|
|---|
| 4168 | " Show statistics for all CPUs. (default)\n"
|
|---|
| 4169 | " cpu=id, -c id\n"
|
|---|
| 4170 | " Show statistics for the specified CPU ID. Show combined stats if out of range.\n"
|
|---|
| 4171 | " periods=count, -p count\n"
|
|---|
| 4172 | " Number of periods to show. Default: all\n"
|
|---|
| 4173 | " rows=count, -r count\n"
|
|---|
| 4174 | " Number of rows in the graphs. Default: 60\n"
|
|---|
| 4175 | " width=count, -w count\n"
|
|---|
| 4176 | " Core graph width in characters. Default: 80\n"
|
|---|
| 4177 | " exp, exponential, -e\n"
|
|---|
| 4178 | " Do 1:1 for more recent half / 30 seconds of the graph, combine the\n"
|
|---|
| 4179 | " rest into increasinly larger chunks. Default.\n"
|
|---|
| 4180 | " uniform, uni, -u\n"
|
|---|
| 4181 | " Combine periods into rows in a uniform manner for the whole graph.\n");
|
|---|
| 4182 | return;
|
|---|
| 4183 | default:
|
|---|
| 4184 | pHlp->pfnGetOptError(pHlp, rc, &ValueUnion, &State);
|
|---|
| 4185 | return;
|
|---|
| 4186 | }
|
|---|
| 4187 | }
|
|---|
| 4188 |
|
|---|
| 4189 | /*
|
|---|
| 4190 | * Do the job.
|
|---|
| 4191 | */
|
|---|
| 4192 | for (;;)
|
|---|
| 4193 | {
|
|---|
| 4194 | uint32_t const cMaxPeriods = pState->cHistoryEntries;
|
|---|
| 4195 | if (cPeriods > cMaxPeriods)
|
|---|
| 4196 | cPeriods = cMaxPeriods;
|
|---|
| 4197 | if (cPeriods > 0)
|
|---|
| 4198 | {
|
|---|
| 4199 | if (fAllCpus)
|
|---|
| 4200 | {
|
|---|
| 4201 | if (idCpu > 0)
|
|---|
| 4202 | pHlp->pfnPrintf(pHlp, "\n");
|
|---|
| 4203 | pHlp->pfnPrintf(pHlp, " CPU load for virtual CPU %#04x\n"
|
|---|
| 4204 | " -------------------------------\n", idCpu);
|
|---|
| 4205 | }
|
|---|
| 4206 |
|
|---|
| 4207 | /*
|
|---|
| 4208 | * Figure number of periods per chunk. We can either do this in a linear
|
|---|
| 4209 | * fashion or a exponential fashion that compresses old history more.
|
|---|
| 4210 | */
|
|---|
| 4211 | size_t cPerRowDecrement = 0;
|
|---|
| 4212 | size_t cPeriodsPerRow = 1;
|
|---|
| 4213 | if (cRows < cPeriods)
|
|---|
| 4214 | {
|
|---|
| 4215 | if (!fExpGraph)
|
|---|
| 4216 | cPeriodsPerRow = (cPeriods + cRows / 2) / cRows;
|
|---|
| 4217 | else
|
|---|
| 4218 | {
|
|---|
| 4219 | /* The last 30 seconds or half of the rows are 1:1, the other part
|
|---|
| 4220 | is in increasing period counts. Code is a little simple but seems
|
|---|
| 4221 | to do the job most of the time, which is all I have time now. */
|
|---|
| 4222 | size_t cPeriodsOneToOne = RT_MIN(30, cRows / 2);
|
|---|
| 4223 | size_t cRestRows = cRows - cPeriodsOneToOne;
|
|---|
| 4224 | size_t cRestPeriods = cPeriods - cPeriodsOneToOne;
|
|---|
| 4225 |
|
|---|
| 4226 | size_t cPeriodsInWindow = 0;
|
|---|
| 4227 | for (cPeriodsPerRow = 0; cPeriodsPerRow <= cRestRows && cPeriodsInWindow < cRestPeriods; cPeriodsPerRow++)
|
|---|
| 4228 | cPeriodsInWindow += cPeriodsPerRow + 1;
|
|---|
| 4229 |
|
|---|
| 4230 | size_t iLower = 1;
|
|---|
| 4231 | while (cPeriodsInWindow < cRestPeriods)
|
|---|
| 4232 | {
|
|---|
| 4233 | cPeriodsPerRow++;
|
|---|
| 4234 | cPeriodsInWindow += cPeriodsPerRow;
|
|---|
| 4235 | cPeriodsInWindow -= iLower;
|
|---|
| 4236 | iLower++;
|
|---|
| 4237 | }
|
|---|
| 4238 |
|
|---|
| 4239 | cPerRowDecrement = 1;
|
|---|
| 4240 | }
|
|---|
| 4241 | }
|
|---|
| 4242 |
|
|---|
| 4243 | /*
|
|---|
| 4244 | * Do the work.
|
|---|
| 4245 | */
|
|---|
| 4246 | size_t cPctExecuting = 0;
|
|---|
| 4247 | size_t cPctOther = 0;
|
|---|
| 4248 | size_t cPeriodsAccumulated = 0;
|
|---|
| 4249 |
|
|---|
| 4250 | size_t cRowsLeft = cRows;
|
|---|
| 4251 | size_t iHistory = (pState->idxHistory - cPeriods) % RT_ELEMENTS(pState->aHistory);
|
|---|
| 4252 | while (cPeriods-- > 0)
|
|---|
| 4253 | {
|
|---|
| 4254 | iHistory++;
|
|---|
| 4255 | if (iHistory >= RT_ELEMENTS(pState->aHistory))
|
|---|
| 4256 | iHistory = 0;
|
|---|
| 4257 |
|
|---|
| 4258 | cPctExecuting += pState->aHistory[iHistory].cPctExecuting;
|
|---|
| 4259 | cPctOther += pState->aHistory[iHistory].cPctOther;
|
|---|
| 4260 | cPeriodsAccumulated += 1;
|
|---|
| 4261 | if ( cPeriodsAccumulated >= cPeriodsPerRow
|
|---|
| 4262 | || cPeriods < cRowsLeft)
|
|---|
| 4263 | {
|
|---|
| 4264 | /*
|
|---|
| 4265 | * Format and output the line.
|
|---|
| 4266 | */
|
|---|
| 4267 | size_t offTmp = 0;
|
|---|
| 4268 | size_t i = tmR3InfoCpuLoadAdjustWidth(cPctExecuting / cPeriodsAccumulated, cchWidth);
|
|---|
| 4269 | while (i-- > 0)
|
|---|
| 4270 | szTmp[offTmp++] = '#';
|
|---|
| 4271 | i = tmR3InfoCpuLoadAdjustWidth(cPctOther / cPeriodsAccumulated, cchWidth);
|
|---|
| 4272 | while (i-- > 0)
|
|---|
| 4273 | szTmp[offTmp++] = 'O';
|
|---|
| 4274 | szTmp[offTmp] = '\0';
|
|---|
| 4275 |
|
|---|
| 4276 | cRowsLeft--;
|
|---|
| 4277 | pHlp->pfnPrintf(pHlp, "%3zus: %s\n", cPeriods + cPeriodsAccumulated / 2, szTmp);
|
|---|
| 4278 |
|
|---|
| 4279 | /* Reset the state: */
|
|---|
| 4280 | cPctExecuting = 0;
|
|---|
| 4281 | cPctOther = 0;
|
|---|
| 4282 | cPeriodsAccumulated = 0;
|
|---|
| 4283 | if (cPeriodsPerRow > cPerRowDecrement)
|
|---|
| 4284 | cPeriodsPerRow -= cPerRowDecrement;
|
|---|
| 4285 | }
|
|---|
| 4286 | }
|
|---|
| 4287 | pHlp->pfnPrintf(pHlp, " (#=guest, O=VMM overhead) idCpu=%#x\n", idCpu);
|
|---|
| 4288 |
|
|---|
| 4289 | }
|
|---|
| 4290 | else
|
|---|
| 4291 | pHlp->pfnPrintf(pHlp, "No load data.\n");
|
|---|
| 4292 |
|
|---|
| 4293 | /*
|
|---|
| 4294 | * Next CPU if we're display all.
|
|---|
| 4295 | */
|
|---|
| 4296 | if (!fAllCpus)
|
|---|
| 4297 | break;
|
|---|
| 4298 | idCpu++;
|
|---|
| 4299 | if (idCpu >= pVM->cCpus)
|
|---|
| 4300 | break;
|
|---|
| 4301 | pState = &pVM->apCpusR3[idCpu]->tm.s.CpuLoad;
|
|---|
| 4302 | }
|
|---|
| 4303 |
|
|---|
| 4304 | }
|
|---|
| 4305 |
|
|---|
| 4306 |
|
|---|
| 4307 | /**
|
|---|
| 4308 | * Gets the descriptive TM TSC mode name given the enum value.
|
|---|
| 4309 | *
|
|---|
| 4310 | * @returns The name.
|
|---|
| 4311 | * @param enmMode The mode to name.
|
|---|
| 4312 | */
|
|---|
| 4313 | static const char *tmR3GetTSCModeNameEx(TMTSCMODE enmMode)
|
|---|
| 4314 | {
|
|---|
| 4315 | switch (enmMode)
|
|---|
| 4316 | {
|
|---|
| 4317 | case TMTSCMODE_REAL_TSC_OFFSET: return "RealTSCOffset";
|
|---|
| 4318 | case TMTSCMODE_VIRT_TSC_EMULATED: return "VirtTSCEmulated";
|
|---|
| 4319 | case TMTSCMODE_DYNAMIC: return "Dynamic";
|
|---|
| 4320 | case TMTSCMODE_NATIVE_API: return "NativeApi";
|
|---|
| 4321 | default: return "???";
|
|---|
| 4322 | }
|
|---|
| 4323 | }
|
|---|
| 4324 |
|
|---|
| 4325 |
|
|---|
| 4326 | /**
|
|---|
| 4327 | * Gets the descriptive TM TSC mode name.
|
|---|
| 4328 | *
|
|---|
| 4329 | * @returns The name.
|
|---|
| 4330 | * @param pVM The cross context VM structure.
|
|---|
| 4331 | */
|
|---|
| 4332 | static const char *tmR3GetTSCModeName(PVM pVM)
|
|---|
| 4333 | {
|
|---|
| 4334 | Assert(pVM);
|
|---|
| 4335 | return tmR3GetTSCModeNameEx(pVM->tm.s.enmTSCMode);
|
|---|
| 4336 | }
|
|---|
| 4337 |
|
|---|
