[5031] | 1 | /* $Id: GVMMR0Internal.h 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * GVMM - The Global VM Manager, Internal header.
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| 4 | */
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| 5 |
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| 6 | /*
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[98103] | 7 | * Copyright (C) 2007-2023 Oracle and/or its affiliates.
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[5031] | 8 | *
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[96407] | 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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[5031] | 26 | */
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| 27 |
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[76561] | 28 | #ifndef VMM_INCLUDED_SRC_VMMR0_GVMMR0Internal_h
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| 29 | #define VMM_INCLUDED_SRC_VMMR0_GVMMR0Internal_h
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[76543] | 30 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 31 | # pragma once
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| 32 | #endif
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[5031] | 33 |
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| 34 | #include <iprt/mem.h>
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[92892] | 35 | #include <iprt/timer.h>
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[5031] | 36 |
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[92892] | 37 |
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[19360] | 38 | /**
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| 39 | * The GVMM per VM data.
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| 40 | */
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| 41 | typedef struct GVMMPERVCPU
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| 42 | {
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| 43 | /** The time the halted EMT thread expires.
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| 44 | * 0 if the EMT thread is blocked here. */
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| 45 | uint64_t volatile u64HaltExpire;
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| 46 | /** The event semaphore the EMT thread is blocking on. */
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| 47 | RTSEMEVENTMULTI HaltEventMulti;
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[92892] | 48 | /** High resolution wake-up timer, NIL_RTTIMER if not used. */
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| 49 | PRTTIMER hHrWakeUpTimer;
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| 50 | /** The ID of the CPU we ran on when halting (debug only). */
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| 51 | RTCPUID idHaltedOnCpu;
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| 52 | /** Set if hHrWakeUpTimer is armed. */
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| 53 | bool volatile fHrWakeUptimerArmed;
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| 54 | uint8_t abPadding[1];
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| 55 | /** The EMT hash table index for this VCpu. */
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| 56 | uint16_t idxEmtHash;
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[78431] | 57 | /** The ring-3 mapping of the VMCPU structure. */
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| 58 | RTR0MEMOBJ VMCpuMapObj;
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[92892] | 59 | /** Statistics. */
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| 60 | GVMMSTATSVMCPU Stats;
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[19360] | 61 | } GVMMPERVCPU;
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| 62 | /** Pointer to the GVMM per VCPU data. */
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| 63 | typedef GVMMPERVCPU *PGVMMPERVCPU;
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[14811] | 64 |
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[90597] | 65 |
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[5031] | 66 | /**
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[90597] | 67 | * EMT hash table entry.
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| 68 | */
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| 69 | typedef struct GVMMEMTHASHENTRY
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| 70 | {
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| 71 | /** The key. */
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| 72 | RTNATIVETHREAD hNativeEmt;
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| 73 | /** The VCpu index. */
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| 74 | VMCPUID idVCpu;
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| 75 | #if HC_ARCH_BITS == 64
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| 76 | uint32_t u32Padding;
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| 77 | #endif
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| 78 | } GVMMEMTHASHENTRY;
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| 79 | AssertCompileSize(GVMMEMTHASHENTRY, sizeof(void *) * 2);
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| 80 |
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| 81 | /** The EMT hash table size. */
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| 82 | #define GVMM_EMT_HASH_SIZE (VMM_MAX_CPU_COUNT * 4)
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| 83 | /** Primary EMT hash table hash function, sans range limit.
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| 84 | * @note We assume the native ring-0 thread handle is a pointer to a pretty big
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| 85 | * structure of at least 1 KiB.
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| 86 | * - NT AMD64 6.0 ETHREAD: 0x450. See
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| 87 | * https://www.geoffchappell.com/studies/windows/km/ntoskrnl/inc/ntos/ps/ethread/index.htm
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| 88 | * for more details.
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| 89 | * - Solaris kthread_t is at least 0x370 in Solaris 10.
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| 90 | * - Linux task_struct looks pretty big too.
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| 91 | * - As does struct thread in xnu.
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| 92 | * @todo Make platform specific adjustment as needed. */
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| 93 | #define GVMM_EMT_HASH_CORE(a_hNativeSelf) ( (uintptr_t)(a_hNativeSelf) >> 10 )
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| 94 | /** Primary EMT hash table function. */
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| 95 | #define GVMM_EMT_HASH_1(a_hNativeSelf) ( GVMM_EMT_HASH_CORE(a_hNativeSelf) % GVMM_EMT_HASH_SIZE )
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| 96 | /** Secondary EMT hash table function, added to the primary one on collision.
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| 97 | * This uses the bits above the primary hash.
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| 98 | * @note It is always odd, which guarantees that we'll visit all hash table
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| 99 | * entries in case of a collision. */
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| 100 | #define GVMM_EMT_HASH_2(a_hNativeSelf) ( ((GVMM_EMT_HASH_CORE(a_hNativeSelf) / GVMM_EMT_HASH_SIZE) | 1) % GVMM_EMT_HASH_SIZE )
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| 101 |
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| 102 | /**
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[5031] | 103 | * The GVMM per VM data.
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| 104 | */
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| 105 | typedef struct GVMMPERVM
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| 106 | {
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| 107 | /** The shared VM data structure allocation object (PVMR0). */
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| 108 | RTR0MEMOBJ VMMemObj;
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| 109 | /** The Ring-3 mapping of the shared VM data structure (PVMR3). */
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| 110 | RTR0MEMOBJ VMMapObj;
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| 111 | /** The allocation object for the VM pages. */
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| 112 | RTR0MEMOBJ VMPagesMemObj;
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| 113 | /** The ring-3 mapping of the VM pages. */
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| 114 | RTR0MEMOBJ VMPagesMapObj;
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[5167] | 115 |
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[5211] | 116 | /** The scheduler statistics. */
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| 117 | GVMMSTATSSCHED StatsSched;
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[14811] | 118 |
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| 119 | /** Whether the per-VM ring-0 initialization has been performed. */
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| 120 | bool fDoneVMMR0Init;
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| 121 | /** Whether the per-VM ring-0 termination is being or has been performed. */
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| 122 | bool fDoneVMMR0Term;
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[90597] | 123 | bool afPadding[6];
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| 124 |
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[92200] | 125 | /** Worker thread registrations. */
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| 126 | struct
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| 127 | {
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| 128 | /** The native ring-0 thread handle. */
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| 129 | RTNATIVETHREAD hNativeThread;
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| 130 | /** The native ring-3 thread handle. */
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| 131 | RTNATIVETHREAD hNativeThreadR3;
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| 132 | } aWorkerThreads[GVMMWORKERTHREAD_END];
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| 133 |
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[90597] | 134 | /** EMT lookup hash table. */
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| 135 | GVMMEMTHASHENTRY aEmtHash[GVMM_EMT_HASH_SIZE];
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[5031] | 136 | } GVMMPERVM;
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| 137 | /** Pointer to the GVMM per VM data. */
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| 138 | typedef GVMMPERVM *PGVMMPERVM;
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| 139 |
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| 140 |
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[76585] | 141 | #endif /* !VMM_INCLUDED_SRC_VMMR0_GVMMR0Internal_h */
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[5031] | 142 |
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