[23] | 1 | /* $Id: MM.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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[1] | 2 | /** @file
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[12967] | 3 | * MM - Memory Manager.
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[1] | 4 | */
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| 5 |
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| 6 | /*
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[76553] | 7 | * Copyright (C) 2006-2019 Oracle Corporation
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[1] | 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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[5999] | 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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[1] | 16 | */
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| 17 |
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| 18 |
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[12967] | 19 | /** @page pg_mm MM - The Memory Manager
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[1] | 20 | *
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[12967] | 21 | * The memory manager is in charge of the following memory:
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| 22 | * - Hypervisor Memory Area (HMA) - Address space management.
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| 23 | * - Hypervisor Heap - A memory heap that lives in all contexts.
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| 24 | * - Tagged ring-3 heap.
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| 25 | * - Page pools - Primarily used by PGM for shadow page tables.
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| 26 | * - Locked process memory - Guest RAM and other. (reduce/obsolete this)
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| 27 | * - Physical guest memory (RAM & ROM) - Moving to PGM. (obsolete this)
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[6627] | 28 | *
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[12968] | 29 | * The global memory manager (GMM) is the global counter part / partner of MM.
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| 30 | * MM will provide therefore ring-3 callable interfaces for some of the GMM APIs
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| 31 | * related to resource tracking (PGM is the user).
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[1] | 32 | *
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[13005] | 33 | * @see grp_mm
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[12968] | 34 | *
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[13005] | 35 | *
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[12967] | 36 | * @section sec_mm_hma Hypervisor Memory Area
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[1] | 37 | *
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[12967] | 38 | * The HMA is used when executing in raw-mode. We borrow, with the help of
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| 39 | * PGMMap, some unused space (one or more page directory entries to be precise)
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| 40 | * in the guest's virtual memory context. PGM will monitor the guest's virtual
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| 41 | * address space for changes and relocate the HMA when required.
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[1] | 42 | *
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[12967] | 43 | * To give some idea what's in the HMA, study the 'info hma' output:
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| 44 | * @verbatim
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| 45 | VBoxDbg> info hma
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| 46 | Hypervisor Memory Area (HMA) Layout: Base 00000000a0000000, 0x00800000 bytes
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| 47 | 00000000a05cc000-00000000a05cd000 DYNAMIC fence
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| 48 | 00000000a05c4000-00000000a05cc000 DYNAMIC Dynamic mapping
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| 49 | 00000000a05c3000-00000000a05c4000 DYNAMIC fence
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| 50 | 00000000a05b8000-00000000a05c3000 DYNAMIC Paging
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| 51 | 00000000a05b6000-00000000a05b8000 MMIO2 0000000000000000 PCNetShMem
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| 52 | 00000000a0536000-00000000a05b6000 MMIO2 0000000000000000 VGA VRam
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| 53 | 00000000a0523000-00000000a0536000 00002aaab3d0c000 LOCKED autofree alloc once (PDM_DEVICE)
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| 54 | 00000000a0522000-00000000a0523000 DYNAMIC fence
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[56286] | 55 | 00000000a051e000-00000000a0522000 00002aaab36f5000 LOCKED autofree VBoxDD2RC.rc
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[12967] | 56 | 00000000a051d000-00000000a051e000 DYNAMIC fence
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[56286] | 57 | 00000000a04eb000-00000000a051d000 00002aaab36c3000 LOCKED autofree VBoxDDRC.rc
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[12967] | 58 | 00000000a04ea000-00000000a04eb000 DYNAMIC fence
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| 59 | 00000000a04e9000-00000000a04ea000 00002aaab36c2000 LOCKED autofree ram range (High ROM Region)
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| 60 | 00000000a04e8000-00000000a04e9000 DYNAMIC fence
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[56286] | 61 | 00000000a040e000-00000000a04e8000 00002aaab2e6d000 LOCKED autofree VMMRC.rc
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[12967] | 62 | 00000000a0208000-00000000a040e000 00002aaab2c67000 LOCKED autofree alloc once (PATM)
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| 63 | 00000000a01f7000-00000000a0208000 00002aaaab92d000 LOCKED autofree alloc once (SELM)
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| 64 | 00000000a01e7000-00000000a01f7000 00002aaaab5e8000 LOCKED autofree alloc once (SELM)
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| 65 | 00000000a01e6000-00000000a01e7000 DYNAMIC fence
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| 66 | 00000000a01e5000-00000000a01e6000 00002aaaab5e7000 HCPHYS 00000000c363c000 Core Code
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| 67 | 00000000a01e4000-00000000a01e5000 DYNAMIC fence
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| 68 | 00000000a01e3000-00000000a01e4000 00002aaaaab26000 HCPHYS 00000000619cf000 GIP
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| 69 | 00000000a01a2000-00000000a01e3000 00002aaaabf32000 LOCKED autofree alloc once (PGM_PHYS)
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| 70 | 00000000a016b000-00000000a01a2000 00002aaab233f000 LOCKED autofree alloc once (PGM_POOL)
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| 71 | 00000000a016a000-00000000a016b000 DYNAMIC fence
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| 72 | 00000000a0165000-00000000a016a000 DYNAMIC CR3 mapping
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| 73 | 00000000a0164000-00000000a0165000 DYNAMIC fence
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| 74 | 00000000a0024000-00000000a0164000 00002aaab215f000 LOCKED autofree Heap
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| 75 | 00000000a0023000-00000000a0024000 DYNAMIC fence
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| 76 | 00000000a0001000-00000000a0023000 00002aaab1d24000 LOCKED pages VM
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| 77 | 00000000a0000000-00000000a0001000 DYNAMIC fence
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| 78 | @endverbatim
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[1] | 79 | *
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| 80 | *
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[12967] | 81 | * @section sec_mm_hyperheap Hypervisor Heap
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[1] | 82 | *
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[12967] | 83 | * The heap is accessible from ring-3, ring-0 and the raw-mode context. That
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| 84 | * said, it's not necessarily mapped into ring-0 on if that's possible since we
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| 85 | * don't wish to waste kernel address space without a good reason.
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[1] | 86 | *
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[12967] | 87 | * Allocations within the heap are always in the same relative position in all
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| 88 | * contexts, so, it's possible to use offset based linking. In fact, the heap is
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| 89 | * internally using offset based linked lists tracking heap blocks. We use
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| 90 | * offset linked AVL trees and lists in a lot of places where share structures
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| 91 | * between RC, R3 and R0, so this is a strict requirement of the heap. However
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| 92 | * this means that we cannot easily extend the heap since the extension won't
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| 93 | * necessarily be in the continuation of the current heap memory in all (or any)
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| 94 | * context.
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[1] | 95 | *
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[33540] | 96 | * All allocations are tagged. Per tag allocation statistics will be maintaining
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[12967] | 97 | * and exposed thru STAM when VBOX_WITH_STATISTICS is defined.
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[1] | 98 | *
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| 99 | *
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[12967] | 100 | * @section sec_mm_r3heap Tagged Ring-3 Heap
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[1] | 101 | *
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[12967] | 102 | * The ring-3 heap is a wrapper around the RTMem API adding allocation
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| 103 | * statistics and automatic cleanup on VM destruction.
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[1] | 104 | *
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[33540] | 105 | * Per tag allocation statistics will be maintaining and exposed thru STAM when
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[12967] | 106 | * VBOX_WITH_STATISTICS is defined.
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[1] | 107 | *
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| 108 | *
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[12967] | 109 | * @section sec_mm_page Page Pool
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[1] | 110 | *
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[12967] | 111 | * The MM manages a page pool from which other components can allocate locked,
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| 112 | * page aligned and page sized memory objects. The pool provides facilities to
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| 113 | * convert back and forth between (host) physical and virtual addresses (within
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| 114 | * the pool of course). Several specialized interfaces are provided for the most
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[33540] | 115 | * common allocations and conversions to save the caller from bothersome casting
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[12967] | 116 | * and extra parameter passing.
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[1] | 117 | *
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| 118 | *
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[12967] | 119 | * @section sec_mm_locked Locked Process Memory
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| 120 | *
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| 121 | * MM manages the locked process memory. This is used for a bunch of things
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[33540] | 122 | * (count the LOCKED entries in the 'info hma' output found in @ref sec_mm_hma),
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[12967] | 123 | * but the main consumer of memory is currently for guest RAM. There is an
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| 124 | * ongoing rewrite that will move all the guest RAM allocation to PGM and
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| 125 | * GMM.
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| 126 | *
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| 127 | * The locking of memory is something doing in cooperation with the VirtualBox
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| 128 | * support driver, SUPDrv (aka. VBoxDrv), thru the support library API,
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| 129 | * SUPR3 (aka. SUPLib).
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| 130 | *
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| 131 | *
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| 132 | * @section sec_mm_phys Physical Guest Memory
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| 133 | *
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| 134 | * MM is currently managing the physical memory for the guest. It relies heavily
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| 135 | * on PGM for this. There is an ongoing rewrite that will move this to PGM. (The
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| 136 | * rewrite is driven by the need for more flexible guest ram allocation, but
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| 137 | * also motivated by the fact that MMPhys is just adding stupid bureaucracy and
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| 138 | * that MMR3PhysReserve is a totally weird artifact that must go away.)
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| 139 | *
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[1] | 140 | */
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| 141 |
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| 142 |
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[57358] | 143 | /*********************************************************************************************************************************
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| 144 | * Header Files *
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| 145 | *********************************************************************************************************************************/
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[1] | 146 | #define LOG_GROUP LOG_GROUP_MM
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[35346] | 147 | #include <VBox/vmm/mm.h>
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| 148 | #include <VBox/vmm/pgm.h>
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| 149 | #include <VBox/vmm/cfgm.h>
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| 150 | #include <VBox/vmm/ssm.h>
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| 151 | #include <VBox/vmm/gmm.h>
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[1] | 152 | #include "MMInternal.h"
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[35346] | 153 | #include <VBox/vmm/vm.h>
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| 154 | #include <VBox/vmm/uvm.h>
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[1] | 155 | #include <VBox/err.h>
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| 156 | #include <VBox/param.h>
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| 157 |
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| 158 | #include <VBox/log.h>
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| 159 | #include <iprt/alloc.h>
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| 160 | #include <iprt/assert.h>
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| 161 | #include <iprt/string.h>
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| 162 |
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| 163 |
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[57358] | 164 | /*********************************************************************************************************************************
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| 165 | * Defined Constants And Macros *
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| 166 | *********************************************************************************************************************************/
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[33540] | 167 | /** The current saved state version of MM. */
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[6627] | 168 | #define MM_SAVED_STATE_VERSION 2
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| 169 |
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| 170 |
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[57358] | 171 | /*********************************************************************************************************************************
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| 172 | * Internal Functions *
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| 173 | *********************************************************************************************************************************/
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[1] | 174 | static DECLCALLBACK(int) mmR3Save(PVM pVM, PSSMHANDLE pSSM);
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[22793] | 175 | static DECLCALLBACK(int) mmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
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[1] | 176 |
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| 177 |
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[12968] | 178 |
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| 179 |
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[6796] | 180 | /**
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| 181 | * Initializes the MM members of the UVM.
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| 182 | *
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| 183 | * This is currently only the ring-3 heap.
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| 184 | *
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| 185 | * @returns VBox status code.
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| 186 | * @param pUVM Pointer to the user mode VM structure.
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| 187 | */
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[12989] | 188 | VMMR3DECL(int) MMR3InitUVM(PUVM pUVM)
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[6796] | 189 | {
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| 190 | /*
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| 191 | * Assert sizes and order.
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| 192 | */
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| 193 | AssertCompile(sizeof(pUVM->mm.s) <= sizeof(pUVM->mm.padding));
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| 194 | AssertRelease(sizeof(pUVM->mm.s) <= sizeof(pUVM->mm.padding));
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| 195 | Assert(!pUVM->mm.s.pHeap);
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[1] | 196 |
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[6796] | 197 | /*
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| 198 | * Init the heap.
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| 199 | */
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[18792] | 200 | int rc = mmR3HeapCreateU(pUVM, &pUVM->mm.s.pHeap);
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| 201 | if (RT_SUCCESS(rc))
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| 202 | {
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| 203 | rc = mmR3UkHeapCreateU(pUVM, &pUVM->mm.s.pUkHeap);
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| 204 | if (RT_SUCCESS(rc))
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| 205 | return VINF_SUCCESS;
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| 206 | mmR3HeapDestroy(pUVM->mm.s.pHeap);
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| 207 | pUVM->mm.s.pHeap = NULL;
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| 208 | }
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| 209 | return rc;
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[6796] | 210 | }
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| 211 |
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| 212 |
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[1] | 213 | /**
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| 214 | * Initializes the MM.
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| 215 | *
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| 216 | * MM is managing the virtual address space (among other things) and
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[33540] | 217 | * setup the hypervisor memory area mapping in the VM structure and
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| 218 | * the hypervisor alloc-only-heap. Assuming the current init order
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| 219 | * and components the hypervisor memory area looks like this:
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[1] | 220 | * -# VM Structure.
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| 221 | * -# Hypervisor alloc only heap (also call Hypervisor memory region).
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| 222 | * -# Core code.
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| 223 | *
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[33540] | 224 | * MM determines the virtual address of the hypervisor memory area by
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[1] | 225 | * checking for location at previous run. If that property isn't available
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[12968] | 226 | * it will choose a default starting location, currently 0xa0000000.
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[1] | 227 | *
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| 228 | * @returns VBox status code.
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[58122] | 229 | * @param pVM The cross context VM structure.
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[1] | 230 | */
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[12989] | 231 | VMMR3DECL(int) MMR3Init(PVM pVM)
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[1] | 232 | {
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| 233 | LogFlow(("MMR3Init\n"));
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| 234 |
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| 235 | /*
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| 236 | * Assert alignment, sizes and order.
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| 237 | */
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[73097] | 238 | AssertRelease(!(RT_UOFFSETOF(VM, mm.s) & 31));
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[1] | 239 | AssertRelease(sizeof(pVM->mm.s) <= sizeof(pVM->mm.padding));
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| 240 | AssertMsg(pVM->mm.s.offVM == 0, ("Already initialized!\n"));
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| 241 |
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| 242 | /*
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| 243 | * Init the structure.
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| 244 | */
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[73097] | 245 | pVM->mm.s.offVM = RT_UOFFSETOF(VM, mm);
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[1] | 246 | pVM->mm.s.offLookupHyper = NIL_OFFSET;
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| 247 |
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| 248 | /*
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| 249 | * Init the page pool.
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| 250 | */
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[6529] | 251 | int rc = mmR3PagePoolInit(pVM);
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[13816] | 252 | if (RT_SUCCESS(rc))
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[1] | 253 | {
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| 254 | /*
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| 255 | * Init the hypervisor related stuff.
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| 256 | */
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[6529] | 257 | rc = mmR3HyperInit(pVM);
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[13816] | 258 | if (RT_SUCCESS(rc))
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[1] | 259 | {
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| 260 | /*
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| 261 | * Register the saved state data unit.
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| 262 | */
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[6627] | 263 | rc = SSMR3RegisterInternal(pVM, "mm", 1, MM_SAVED_STATE_VERSION, sizeof(uint32_t) * 2,
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[22480] | 264 | NULL, NULL, NULL,
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[1] | 265 | NULL, mmR3Save, NULL,
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| 266 | NULL, mmR3Load, NULL);
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[13816] | 267 | if (RT_SUCCESS(rc))
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[26106] | 268 | {
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| 269 | /*
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| 270 | * Statistics.
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| 271 | */
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| 272 | STAM_REG(pVM, &pVM->mm.s.cBasePages, STAMTYPE_U64, "/MM/Reserved/cBasePages", STAMUNIT_PAGES, "Reserved number of base pages, ROM and Shadow ROM included.");
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| 273 | STAM_REG(pVM, &pVM->mm.s.cHandyPages, STAMTYPE_U32, "/MM/Reserved/cHandyPages", STAMUNIT_PAGES, "Reserved number of handy pages.");
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| 274 | STAM_REG(pVM, &pVM->mm.s.cShadowPages, STAMTYPE_U32, "/MM/Reserved/cShadowPages", STAMUNIT_PAGES, "Reserved number of shadow paging pages.");
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| 275 | STAM_REG(pVM, &pVM->mm.s.cFixedPages, STAMTYPE_U32, "/MM/Reserved/cFixedPages", STAMUNIT_PAGES, "Reserved number of fixed pages (MMIO2).");
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| 276 | STAM_REG(pVM, &pVM->mm.s.cbRamBase, STAMTYPE_U64, "/MM/cbRamBase", STAMUNIT_BYTES, "Size of the base RAM.");
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| 277 |
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[1] | 278 | return rc;
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[26106] | 279 | }
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[4901] | 280 |
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| 281 | /* .... failure .... */
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[1] | 282 | }
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| 283 | }
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[6796] | 284 | MMR3Term(pVM);
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[1] | 285 | return rc;
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| 286 | }
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| 287 |
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| 288 |
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| 289 | /**
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| 290 | * Initializes the MM parts which depends on PGM being initialized.
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| 291 | *
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| 292 | * @returns VBox status code.
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[58122] | 293 | * @param pVM The cross context VM structure.
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[1] | 294 | * @remark No cleanup necessary since MMR3Term() will be called on failure.
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| 295 | */
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[12989] | 296 | VMMR3DECL(int) MMR3InitPaging(PVM pVM)
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[1] | 297 | {
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| 298 | LogFlow(("MMR3InitPaging:\n"));
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[6535] | 299 |
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| 300 | /*
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| 301 | * Query the CFGM values.
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| 302 | */
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[6627] | 303 | int rc;
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| 304 | PCFGMNODE pMMCfg = CFGMR3GetChild(CFGMR3GetRoot(pVM), "MM");
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[13980] | 305 | if (!pMMCfg)
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[6627] | 306 | {
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| 307 | rc = CFGMR3InsertNode(CFGMR3GetRoot(pVM), "MM", &pMMCfg);
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| 308 | AssertRCReturn(rc, rc);
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| 309 | }
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| 310 |
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[52764] | 311 | /** @cfgm{/RamSize, uint64_t, 0, 16TB, 0}
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[6627] | 312 | * Specifies the size of the base RAM that is to be set up during
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| 313 | * VM initialization.
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| 314 | */
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[6535] | 315 | uint64_t cbRam;
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[107] | 316 | rc = CFGMR3QueryU64(CFGMR3GetRoot(pVM), "RamSize", &cbRam);
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[1] | 317 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
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| 318 | cbRam = 0;
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[6627] | 319 | else
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[13818] | 320 | AssertMsgRCReturn(rc, ("Configuration error: Failed to query integer \"RamSize\", rc=%Rrc.\n", rc), rc);
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[32036] | 321 | AssertLogRelMsg(!(cbRam & ~X86_PTE_PAE_PG_MASK), ("%RGp X86_PTE_PAE_PG_MASK=%RX64\n", cbRam, X86_PTE_PAE_PG_MASK));
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[17547] | 322 | AssertLogRelMsgReturn(cbRam <= GMM_GCPHYS_LAST, ("cbRam=%RGp GMM_GCPHYS_LAST=%RX64\n", cbRam, GMM_GCPHYS_LAST), VERR_OUT_OF_RANGE);
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[32036] | 323 | cbRam &= X86_PTE_PAE_PG_MASK;
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[17541] | 324 | pVM->mm.s.cbRamBase = cbRam;
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[6627] | 325 |
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[52764] | 326 | /** @cfgm{/RamHoleSize, uint32_t, 0, 4032MB, 512MB}
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[17541] | 327 | * Specifies the size of the memory hole. The memory hole is used
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| 328 | * to avoid mapping RAM to the range normally used for PCI memory regions.
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[33540] | 329 | * Must be aligned on a 4MB boundary. */
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[17541] | 330 | uint32_t cbRamHole;
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| 331 | rc = CFGMR3QueryU32Def(CFGMR3GetRoot(pVM), "RamHoleSize", &cbRamHole, MM_RAM_HOLE_SIZE_DEFAULT);
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| 332 | AssertLogRelMsgRCReturn(rc, ("Configuration error: Failed to query integer \"RamHoleSize\", rc=%Rrc.\n", rc), rc);
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| 333 | AssertLogRelMsgReturn(cbRamHole <= 4032U * _1M,
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| 334 | ("Configuration error: \"RamHoleSize\"=%#RX32 is too large.\n", cbRamHole), VERR_OUT_OF_RANGE);
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| 335 | AssertLogRelMsgReturn(cbRamHole > 16 * _1M,
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| 336 | ("Configuration error: \"RamHoleSize\"=%#RX32 is too large.\n", cbRamHole), VERR_OUT_OF_RANGE);
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| 337 | AssertLogRelMsgReturn(!(cbRamHole & (_4M - 1)),
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| 338 | ("Configuration error: \"RamHoleSize\"=%#RX32 is misaligned.\n", cbRamHole), VERR_OUT_OF_RANGE);
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| 339 | uint64_t const offRamHole = _4G - cbRamHole;
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| 340 | if (cbRam < offRamHole)
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[19022] | 341 | Log(("MM: %RU64 bytes of RAM\n", cbRam));
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[17541] | 342 | else
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[19022] | 343 | Log(("MM: %RU64 bytes of RAM with a hole at %RU64 up to 4GB.\n", cbRam, offRamHole));
|
---|
[17541] | 344 |
|
---|
[52764] | 345 | /** @cfgm{/MM/Policy, string, no overcommitment}
|
---|
[6627] | 346 | * Specifies the policy to use when reserving memory for this VM. The recognized
|
---|
| 347 | * value is 'no overcommitment' (default). See GMMPOLICY.
|
---|
| 348 | */
|
---|
[19042] | 349 | GMMOCPOLICY enmOcPolicy;
|
---|
[6627] | 350 | char sz[64];
|
---|
| 351 | rc = CFGMR3QueryString(CFGMR3GetRoot(pVM), "Policy", sz, sizeof(sz));
|
---|
| 352 | if (RT_SUCCESS(rc))
|
---|
[1] | 353 | {
|
---|
[6627] | 354 | if ( !RTStrICmp(sz, "no_oc")
|
---|
| 355 | || !RTStrICmp(sz, "no overcommitment"))
|
---|
[17513] | 356 | enmOcPolicy = GMMOCPOLICY_NO_OC;
|
---|
[6627] | 357 | else
|
---|
[6634] | 358 | return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS, "Unknown \"MM/Policy\" value \"%s\"", sz);
|
---|
[6627] | 359 | }
|
---|
| 360 | else if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
---|
[17513] | 361 | enmOcPolicy = GMMOCPOLICY_NO_OC;
|
---|
[6627] | 362 | else
|
---|
[19042] | 363 | AssertMsgFailedReturn(("Configuration error: Failed to query string \"MM/Policy\", rc=%Rrc.\n", rc), rc);
|
---|
[6535] | 364 |
|
---|
[52764] | 365 | /** @cfgm{/MM/Priority, string, normal}
|
---|
[6627] | 366 | * Specifies the memory priority of this VM. The priority comes into play when the
|
---|
| 367 | * system is overcommitted and the VMs needs to be milked for memory. The recognized
|
---|
| 368 | * values are 'low', 'normal' (default) and 'high'. See GMMPRIORITY.
|
---|
| 369 | */
|
---|
| 370 | GMMPRIORITY enmPriority;
|
---|
| 371 | rc = CFGMR3QueryString(CFGMR3GetRoot(pVM), "Priority", sz, sizeof(sz));
|
---|
| 372 | if (RT_SUCCESS(rc))
|
---|
| 373 | {
|
---|
| 374 | if (!RTStrICmp(sz, "low"))
|
---|
| 375 | enmPriority = GMMPRIORITY_LOW;
|
---|
| 376 | else if (!RTStrICmp(sz, "normal"))
|
---|
| 377 | enmPriority = GMMPRIORITY_NORMAL;
|
---|
| 378 | else if (!RTStrICmp(sz, "high"))
|
---|
| 379 | enmPriority = GMMPRIORITY_HIGH;
|
---|
| 380 | else
|
---|
[6634] | 381 | return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS, "Unknown \"MM/Priority\" value \"%s\"", sz);
|
---|
[6627] | 382 | }
|
---|
| 383 | else if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
---|
| 384 | enmPriority = GMMPRIORITY_NORMAL;
|
---|
| 385 | else
|
---|
[18787] | 386 | AssertMsgFailedReturn(("Configuration error: Failed to query string \"MM/Priority\", rc=%Rrc.\n", rc), rc);
|
---|
[6627] | 387 |
|
---|
| 388 | /*
|
---|
| 389 | * Make the initial memory reservation with GMM.
|
---|
| 390 | */
|
---|
[17513] | 391 | uint64_t cBasePages = (cbRam >> PAGE_SHIFT) + pVM->mm.s.cBasePages;
|
---|
| 392 | rc = GMMR3InitialReservation(pVM,
|
---|
| 393 | RT_MAX(cBasePages + pVM->mm.s.cHandyPages, 1),
|
---|
| 394 | RT_MAX(pVM->mm.s.cShadowPages, 1),
|
---|
| 395 | RT_MAX(pVM->mm.s.cFixedPages, 1),
|
---|
| 396 | enmOcPolicy,
|
---|
| 397 | enmPriority);
|
---|
[6627] | 398 | if (RT_FAILURE(rc))
|
---|
| 399 | {
|
---|
[6634] | 400 | if (rc == VERR_GMM_MEMORY_RESERVATION_DECLINED)
|
---|
[6627] | 401 | return VMSetError(pVM, rc, RT_SRC_POS,
|
---|
[17513] | 402 | N_("Insufficient free memory to start the VM (cbRam=%#RX64 enmOcPolicy=%d enmPriority=%d)"),
|
---|
| 403 | cbRam, enmOcPolicy, enmPriority);
|
---|
[6817] | 404 | return VMSetError(pVM, rc, RT_SRC_POS, "GMMR3InitialReservation(,%#RX64,0,0,%d,%d)",
|
---|
[17513] | 405 | cbRam >> PAGE_SHIFT, enmOcPolicy, enmPriority);
|
---|
[6627] | 406 | }
|
---|
| 407 |
|
---|
| 408 | /*
|
---|
| 409 | * If RamSize is 0 we're done now.
|
---|
| 410 | */
|
---|
| 411 | if (cbRam < PAGE_SIZE)
|
---|
| 412 | {
|
---|
| 413 | Log(("MM: No RAM configured\n"));
|
---|
| 414 | return VINF_SUCCESS;
|
---|
| 415 | }
|
---|
| 416 |
|
---|
| 417 | /*
|
---|
| 418 | * Setup the base ram (PGM).
|
---|
| 419 | */
|
---|
[63660] | 420 | pVM->mm.s.cbRamHole = cbRamHole;
|
---|
[17541] | 421 | if (cbRam > offRamHole)
|
---|
[6627] | 422 | {
|
---|
[63660] | 423 | pVM->mm.s.cbRamBelow4GB = offRamHole;
|
---|
[17541] | 424 | rc = PGMR3PhysRegisterRam(pVM, 0, offRamHole, "Base RAM");
|
---|
| 425 | if (RT_SUCCESS(rc))
|
---|
[63660] | 426 | {
|
---|
| 427 | pVM->mm.s.cbRamAbove4GB = cbRam - offRamHole;
|
---|
[17541] | 428 | rc = PGMR3PhysRegisterRam(pVM, _4G, cbRam - offRamHole, "Above 4GB Base RAM");
|
---|
[63660] | 429 | }
|
---|
[17541] | 430 | }
|
---|
| 431 | else
|
---|
[63660] | 432 | {
|
---|
| 433 | pVM->mm.s.cbRamBelow4GB = cbRam;
|
---|
| 434 | pVM->mm.s.cbRamAbove4GB = 0;
|
---|
| 435 | rc = PGMR3PhysRegisterRam(pVM, 0, cbRam, "Base RAM");
|
---|
| 436 | }
|
---|
[1] | 437 |
|
---|
[17513] | 438 | /*
|
---|
| 439 | * Enabled mmR3UpdateReservation here since we don't want the
|
---|
| 440 | * PGMR3PhysRegisterRam calls above mess things up.
|
---|
| 441 | */
|
---|
| 442 | pVM->mm.s.fDoneMMR3InitPaging = true;
|
---|
[17541] | 443 | AssertMsg(pVM->mm.s.cBasePages == cBasePages || RT_FAILURE(rc), ("%RX64 != %RX64\n", pVM->mm.s.cBasePages, cBasePages));
|
---|
[17513] | 444 |
|
---|
[13818] | 445 | LogFlow(("MMR3InitPaging: returns %Rrc\n", rc));
|
---|
[1] | 446 | return rc;
|
---|
| 447 | }
|
---|
| 448 |
|
---|
| 449 |
|
---|
| 450 | /**
|
---|
| 451 | * Terminates the MM.
|
---|
| 452 | *
|
---|
| 453 | * Termination means cleaning up and freeing all resources,
|
---|
| 454 | * the VM it self is at this point powered off or suspended.
|
---|
| 455 | *
|
---|
| 456 | * @returns VBox status code.
|
---|
[58122] | 457 | * @param pVM The cross context VM structure.
|
---|
[1] | 458 | */
|
---|
[12989] | 459 | VMMR3DECL(int) MMR3Term(PVM pVM)
|
---|
[1] | 460 | {
|
---|
| 461 | /*
|
---|
[4768] | 462 | * Destroy the page pool. (first as it used the hyper heap)
|
---|
| 463 | */
|
---|
[6529] | 464 | mmR3PagePoolTerm(pVM);
|
---|
[4768] | 465 |
|
---|
[19663] | 466 | /* Clean up the hypervisor heap. */
|
---|
| 467 | mmR3HyperTerm(pVM);
|
---|
| 468 |
|
---|
[4768] | 469 | /*
|
---|
[1] | 470 | * Zero stuff to detect after termination use of the MM interface
|
---|
| 471 | */
|
---|
| 472 | pVM->mm.s.offLookupHyper = NIL_OFFSET;
|
---|
[12814] | 473 | pVM->mm.s.pHyperHeapR3 = NULL; /* freed above. */
|
---|
| 474 | pVM->mm.s.pHyperHeapR0 = NIL_RTR0PTR; /* freed above. */
|
---|
| 475 | pVM->mm.s.pHyperHeapRC = NIL_RTRCPTR; /* freed above. */
|
---|
| 476 | pVM->mm.s.offVM = 0; /* init assertion on this */
|
---|
[1] | 477 |
|
---|
[18792] | 478 | /*
|
---|
| 479 | * Destroy the User-kernel heap here since the support driver session
|
---|
| 480 | * may have been terminated by the time we get to MMR3TermUVM.
|
---|
| 481 | */
|
---|
| 482 | mmR3UkHeapDestroy(pVM->pUVM->mm.s.pUkHeap);
|
---|
| 483 | pVM->pUVM->mm.s.pUkHeap = NULL;
|
---|
| 484 |
|
---|
[12968] | 485 | return VINF_SUCCESS;
|
---|
[1] | 486 | }
|
---|
| 487 |
|
---|
| 488 |
|
---|
| 489 | /**
|
---|
[6796] | 490 | * Terminates the UVM part of MM.
|
---|
| 491 | *
|
---|
| 492 | * Termination means cleaning up and freeing all resources,
|
---|
| 493 | * the VM it self is at this point powered off or suspended.
|
---|
| 494 | *
|
---|
| 495 | * @returns VBox status code.
|
---|
| 496 | * @param pUVM Pointer to the user mode VM structure.
|
---|
| 497 | */
|
---|
[12989] | 498 | VMMR3DECL(void) MMR3TermUVM(PUVM pUVM)
|
---|
[6796] | 499 | {
|
---|
| 500 | /*
|
---|
[18792] | 501 | * Destroy the heaps.
|
---|
[6796] | 502 | */
|
---|
[18792] | 503 | if (pUVM->mm.s.pUkHeap)
|
---|
| 504 | {
|
---|
| 505 | mmR3UkHeapDestroy(pUVM->mm.s.pUkHeap);
|
---|
| 506 | pUVM->mm.s.pUkHeap = NULL;
|
---|
| 507 | }
|
---|
[6796] | 508 | mmR3HeapDestroy(pUVM->mm.s.pHeap);
|
---|
| 509 | pUVM->mm.s.pHeap = NULL;
|
---|
| 510 | }
|
---|
| 511 |
|
---|
| 512 |
|
---|
| 513 | /**
|
---|
[55489] | 514 | * Checks if the both VM and UVM parts of MM have been initialized.
|
---|
| 515 | *
|
---|
| 516 | * @returns true if initialized, false if not.
|
---|
[58122] | 517 | * @param pVM The cross context VM structure.
|
---|
[55489] | 518 | */
|
---|
| 519 | VMMR3_INT_DECL(bool) MMR3IsInitialized(PVM pVM)
|
---|
| 520 | {
|
---|
| 521 | return pVM->mm.s.pHyperHeapR3 != NULL;
|
---|
| 522 | }
|
---|
| 523 |
|
---|
| 524 |
|
---|
| 525 | /**
|
---|
[1] | 526 | * Execute state save operation.
|
---|
| 527 | *
|
---|
| 528 | * @returns VBox status code.
|
---|
[58122] | 529 | * @param pVM The cross context VM structure.
|
---|
[1] | 530 | * @param pSSM SSM operation handle.
|
---|
| 531 | */
|
---|
| 532 | static DECLCALLBACK(int) mmR3Save(PVM pVM, PSSMHANDLE pSSM)
|
---|
| 533 | {
|
---|
| 534 | LogFlow(("mmR3Save:\n"));
|
---|
| 535 |
|
---|
| 536 | /* (PGM saves the physical memory.) */
|
---|
[6627] | 537 | SSMR3PutU64(pSSM, pVM->mm.s.cBasePages);
|
---|
| 538 | return SSMR3PutU64(pSSM, pVM->mm.s.cbRamBase);
|
---|
[1] | 539 | }
|
---|
| 540 |
|
---|
| 541 |
|
---|
| 542 | /**
|
---|
| 543 | * Execute state load operation.
|
---|
| 544 | *
|
---|
| 545 | * @returns VBox status code.
|
---|
[58122] | 546 | * @param pVM The cross context VM structure.
|
---|
[1] | 547 | * @param pSSM SSM operation handle.
|
---|
[22480] | 548 | * @param uVersion Data layout version.
|
---|
[22793] | 549 | * @param uPass The data pass.
|
---|
[1] | 550 | */
|
---|
[22793] | 551 | static DECLCALLBACK(int) mmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
|
---|
[1] | 552 | {
|
---|
| 553 | LogFlow(("mmR3Load:\n"));
|
---|
[22793] | 554 | Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
|
---|
[1] | 555 |
|
---|
| 556 | /*
|
---|
| 557 | * Validate version.
|
---|
| 558 | */
|
---|
[22480] | 559 | if ( SSM_VERSION_MAJOR_CHANGED(uVersion, MM_SAVED_STATE_VERSION)
|
---|
| 560 | || !uVersion)
|
---|
[1] | 561 | {
|
---|
[22480] | 562 | AssertMsgFailed(("mmR3Load: Invalid version uVersion=%d!\n", uVersion));
|
---|
[1] | 563 | return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
|
---|
| 564 | }
|
---|
| 565 |
|
---|
| 566 | /*
|
---|
[6627] | 567 | * Check the cBasePages and cbRamBase values.
|
---|
[1] | 568 | */
|
---|
[6627] | 569 | int rc;
|
---|
| 570 | RTUINT cb1;
|
---|
| 571 |
|
---|
[18607] | 572 | /* cBasePages (ignored) */
|
---|
[6627] | 573 | uint64_t cPages;
|
---|
[22480] | 574 | if (uVersion >= 2)
|
---|
[6627] | 575 | rc = SSMR3GetU64(pSSM, &cPages);
|
---|
| 576 | else
|
---|
| 577 | {
|
---|
| 578 | rc = SSMR3GetUInt(pSSM, &cb1);
|
---|
| 579 | cPages = cb1 >> PAGE_SHIFT;
|
---|
| 580 | }
|
---|
[13816] | 581 | if (RT_FAILURE(rc))
|
---|
[1] | 582 | return rc;
|
---|
| 583 |
|
---|
[6627] | 584 | /* cbRamBase */
|
---|
| 585 | uint64_t cb;
|
---|
[22480] | 586 | if (uVersion != 1)
|
---|
[6627] | 587 | rc = SSMR3GetU64(pSSM, &cb);
|
---|
| 588 | else
|
---|
| 589 | {
|
---|
| 590 | rc = SSMR3GetUInt(pSSM, &cb1);
|
---|
| 591 | cb = cb1;
|
---|
| 592 | }
|
---|
[13816] | 593 | if (RT_FAILURE(rc))
|
---|
[1] | 594 | return rc;
|
---|
[18607] | 595 | AssertLogRelMsgReturn(cb == pVM->mm.s.cbRamBase,
|
---|
[18046] | 596 | ("Memory configuration has changed. cbRamBase=%#RX64 save=%#RX64\n", pVM->mm.s.cbRamBase, cb),
|
---|
| 597 | VERR_SSM_LOAD_MEMORY_SIZE_MISMATCH);
|
---|
[1] | 598 |
|
---|
[6627] | 599 | /* (PGM restores the physical memory.) */
|
---|
[1] | 600 | return rc;
|
---|
| 601 | }
|
---|
| 602 |
|
---|
| 603 |
|
---|
| 604 | /**
|
---|
[6627] | 605 | * Updates GMM with memory reservation changes.
|
---|
| 606 | *
|
---|
| 607 | * Called when MM::cbRamRegistered, MM::cShadowPages or MM::cFixedPages changes.
|
---|
| 608 | *
|
---|
| 609 | * @returns VBox status code - see GMMR0UpdateReservation.
|
---|
[58122] | 610 | * @param pVM The cross context VM structure.
|
---|
[6627] | 611 | */
|
---|
| 612 | int mmR3UpdateReservation(PVM pVM)
|
---|
| 613 | {
|
---|
[7635] | 614 | VM_ASSERT_EMT(pVM);
|
---|
[6627] | 615 | if (pVM->mm.s.fDoneMMR3InitPaging)
|
---|
| 616 | return GMMR3UpdateReservation(pVM,
|
---|
[17513] | 617 | RT_MAX(pVM->mm.s.cBasePages + pVM->mm.s.cHandyPages, 1),
|
---|
[6627] | 618 | RT_MAX(pVM->mm.s.cShadowPages, 1),
|
---|
| 619 | RT_MAX(pVM->mm.s.cFixedPages, 1));
|
---|
| 620 | return VINF_SUCCESS;
|
---|
| 621 | }
|
---|
| 622 |
|
---|
| 623 |
|
---|
| 624 | /**
|
---|
| 625 | * Interface for PGM to increase the reservation of RAM and ROM pages.
|
---|
| 626 | *
|
---|
| 627 | * This can be called before MMR3InitPaging.
|
---|
| 628 | *
|
---|
[7635] | 629 | * @returns VBox status code. Will set VM error on failure.
|
---|
[58122] | 630 | * @param pVM The cross context VM structure.
|
---|
[6627] | 631 | * @param cAddBasePages The number of pages to add.
|
---|
| 632 | */
|
---|
[12989] | 633 | VMMR3DECL(int) MMR3IncreaseBaseReservation(PVM pVM, uint64_t cAddBasePages)
|
---|
[6627] | 634 | {
|
---|
[6817] | 635 | uint64_t cOld = pVM->mm.s.cBasePages;
|
---|
[6627] | 636 | pVM->mm.s.cBasePages += cAddBasePages;
|
---|
[6817] | 637 | LogFlow(("MMR3IncreaseBaseReservation: +%RU64 (%RU64 -> %RU64\n", cAddBasePages, cOld, pVM->mm.s.cBasePages));
|
---|
| 638 | int rc = mmR3UpdateReservation(pVM);
|
---|
| 639 | if (RT_FAILURE(rc))
|
---|
| 640 | {
|
---|
[17513] | 641 | VMSetError(pVM, rc, RT_SRC_POS, N_("Failed to reserved physical memory for the RAM (%#RX64 -> %#RX64 + %#RX32)"),
|
---|
| 642 | cOld, pVM->mm.s.cBasePages, pVM->mm.s.cHandyPages);
|
---|
[6817] | 643 | pVM->mm.s.cBasePages = cOld;
|
---|
| 644 | }
|
---|
| 645 | return rc;
|
---|
[6627] | 646 | }
|
---|
| 647 |
|
---|
| 648 |
|
---|
| 649 | /**
|
---|
[17513] | 650 | * Interface for PGM to make reservations for handy pages in addition to the
|
---|
| 651 | * base memory.
|
---|
| 652 | *
|
---|
| 653 | * This can be called before MMR3InitPaging.
|
---|
| 654 | *
|
---|
| 655 | * @returns VBox status code. Will set VM error on failure.
|
---|
[58122] | 656 | * @param pVM The cross context VM structure.
|
---|
[17513] | 657 | * @param cHandyPages The number of handy pages.
|
---|
| 658 | */
|
---|
| 659 | VMMR3DECL(int) MMR3ReserveHandyPages(PVM pVM, uint32_t cHandyPages)
|
---|
| 660 | {
|
---|
| 661 | AssertReturn(!pVM->mm.s.cHandyPages, VERR_WRONG_ORDER);
|
---|
| 662 |
|
---|
| 663 | pVM->mm.s.cHandyPages = cHandyPages;
|
---|
| 664 | LogFlow(("MMR3ReserveHandyPages: %RU32 (base %RU64)\n", pVM->mm.s.cHandyPages, pVM->mm.s.cBasePages));
|
---|
| 665 | int rc = mmR3UpdateReservation(pVM);
|
---|
| 666 | if (RT_FAILURE(rc))
|
---|
| 667 | {
|
---|
| 668 | VMSetError(pVM, rc, RT_SRC_POS, N_("Failed to reserved physical memory for the RAM (%#RX64 + %#RX32)"),
|
---|
| 669 | pVM->mm.s.cBasePages, pVM->mm.s.cHandyPages);
|
---|
| 670 | pVM->mm.s.cHandyPages = 0;
|
---|
| 671 | }
|
---|
| 672 | return rc;
|
---|
| 673 | }
|
---|
| 674 |
|
---|
| 675 |
|
---|
| 676 | /**
|
---|
[7635] | 677 | * Interface for PGM to adjust the reservation of fixed pages.
|
---|
[6627] | 678 | *
|
---|
| 679 | * This can be called before MMR3InitPaging.
|
---|
| 680 | *
|
---|
[7635] | 681 | * @returns VBox status code. Will set VM error on failure.
|
---|
[58122] | 682 | * @param pVM The cross context VM structure.
|
---|
[7635] | 683 | * @param cDeltaFixedPages The number of pages to add (positive) or subtract (negative).
|
---|
| 684 | * @param pszDesc Some description associated with the reservation.
|
---|
[6627] | 685 | */
|
---|
[12989] | 686 | VMMR3DECL(int) MMR3AdjustFixedReservation(PVM pVM, int32_t cDeltaFixedPages, const char *pszDesc)
|
---|
[6627] | 687 | {
|
---|
[6817] | 688 | const uint32_t cOld = pVM->mm.s.cFixedPages;
|
---|
[7635] | 689 | pVM->mm.s.cFixedPages += cDeltaFixedPages;
|
---|
| 690 | LogFlow(("MMR3AdjustFixedReservation: %d (%u -> %u)\n", cDeltaFixedPages, cOld, pVM->mm.s.cFixedPages));
|
---|
[6817] | 691 | int rc = mmR3UpdateReservation(pVM);
|
---|
| 692 | if (RT_FAILURE(rc))
|
---|
| 693 | {
|
---|
[7635] | 694 | VMSetError(pVM, rc, RT_SRC_POS, N_("Failed to reserve physical memory (%#x -> %#x; %s)"),
|
---|
| 695 | cOld, pVM->mm.s.cFixedPages, pszDesc);
|
---|
[6817] | 696 | pVM->mm.s.cFixedPages = cOld;
|
---|
| 697 | }
|
---|
| 698 | return rc;
|
---|
[6627] | 699 | }
|
---|
| 700 |
|
---|
| 701 |
|
---|
| 702 | /**
|
---|
| 703 | * Interface for PGM to update the reservation of shadow pages.
|
---|
| 704 | *
|
---|
| 705 | * This can be called before MMR3InitPaging.
|
---|
| 706 | *
|
---|
[7635] | 707 | * @returns VBox status code. Will set VM error on failure.
|
---|
[58122] | 708 | * @param pVM The cross context VM structure.
|
---|
[6627] | 709 | * @param cShadowPages The new page count.
|
---|
| 710 | */
|
---|
[12989] | 711 | VMMR3DECL(int) MMR3UpdateShadowReservation(PVM pVM, uint32_t cShadowPages)
|
---|
[6627] | 712 | {
|
---|
[6817] | 713 | const uint32_t cOld = pVM->mm.s.cShadowPages;
|
---|
[6627] | 714 | pVM->mm.s.cShadowPages = cShadowPages;
|
---|
[6817] | 715 | LogFlow(("MMR3UpdateShadowReservation: %u -> %u\n", cOld, pVM->mm.s.cShadowPages));
|
---|
| 716 | int rc = mmR3UpdateReservation(pVM);
|
---|
| 717 | if (RT_FAILURE(rc))
|
---|
| 718 | {
|
---|
| 719 | VMSetError(pVM, rc, RT_SRC_POS, N_("Failed to reserve physical memory for shadow page tables (%#x -> %#x)"), cOld, pVM->mm.s.cShadowPages);
|
---|
| 720 | pVM->mm.s.cShadowPages = cOld;
|
---|
| 721 | }
|
---|
| 722 | return rc;
|
---|
[6627] | 723 | }
|
---|
| 724 |
|
---|
| 725 |
|
---|
| 726 | /**
|
---|
[1] | 727 | * Convert HC Physical address to HC Virtual address.
|
---|
| 728 | *
|
---|
[58170] | 729 | * @returns VBox status code.
|
---|
[58122] | 730 | * @param pVM The cross context VM structure.
|
---|
[1] | 731 | * @param HCPhys The host context virtual address.
|
---|
| 732 | * @param ppv Where to store the resulting address.
|
---|
| 733 | * @thread The Emulation Thread.
|
---|
[12968] | 734 | *
|
---|
| 735 | * @remarks Avoid whenever possible.
|
---|
| 736 | * Intended for the debugger facility only.
|
---|
| 737 | * @todo Rename to indicate the special usage.
|
---|
[1] | 738 | */
|
---|
[12989] | 739 | VMMR3DECL(int) MMR3HCPhys2HCVirt(PVM pVM, RTHCPHYS HCPhys, void **ppv)
|
---|
[1] | 740 | {
|
---|
| 741 | /*
|
---|
| 742 | * Try page tables.
|
---|
| 743 | */
|
---|
| 744 | int rc = MMPagePhys2PageTry(pVM, HCPhys, ppv);
|
---|
[13816] | 745 | if (RT_SUCCESS(rc))
|
---|
[1] | 746 | return rc;
|
---|
| 747 |
|
---|
| 748 | /*
|
---|
[18718] | 749 | * Iterate thru the lookup records for HMA.
|
---|
[1] | 750 | */
|
---|
[1480] | 751 | uint32_t off = HCPhys & PAGE_OFFSET_MASK;
|
---|
[32036] | 752 | HCPhys &= X86_PTE_PAE_PG_MASK;
|
---|
[18718] | 753 | PMMLOOKUPHYPER pCur = (PMMLOOKUPHYPER)((uint8_t *)pVM->mm.s.CTX_SUFF(pHyperHeap) + pVM->mm.s.offLookupHyper);
|
---|
| 754 | for (;;)
|
---|
[1] | 755 | {
|
---|
[18718] | 756 | switch (pCur->enmType)
|
---|
| 757 | {
|
---|
| 758 | case MMLOOKUPHYPERTYPE_LOCKED:
|
---|
[1] | 759 | {
|
---|
[18718] | 760 | PCRTHCPHYS paHCPhysPages = pCur->u.Locked.paHCPhysPages;
|
---|
| 761 | size_t iPage = pCur->cb >> PAGE_SHIFT;
|
---|
| 762 | while (iPage-- > 0)
|
---|
| 763 | if (paHCPhysPages[iPage] == HCPhys)
|
---|
| 764 | {
|
---|
| 765 | *ppv = (char *)pCur->u.Locked.pvR3 + (iPage << PAGE_SHIFT) + off;
|
---|
| 766 | return VINF_SUCCESS;
|
---|
| 767 | }
|
---|
| 768 | break;
|
---|
[1] | 769 | }
|
---|
[18718] | 770 |
|
---|
| 771 | case MMLOOKUPHYPERTYPE_HCPHYS:
|
---|
| 772 | if (pCur->u.HCPhys.HCPhys - HCPhys < pCur->cb)
|
---|
| 773 | {
|
---|
| 774 | *ppv = (uint8_t *)pCur->u.HCPhys.pvR3 + pCur->u.HCPhys.HCPhys - HCPhys + off;
|
---|
| 775 | return VINF_SUCCESS;
|
---|
| 776 | }
|
---|
| 777 | break;
|
---|
| 778 |
|
---|
| 779 | case MMLOOKUPHYPERTYPE_GCPHYS: /* (for now we'll not allow these kind of conversions) */
|
---|
| 780 | case MMLOOKUPHYPERTYPE_MMIO2:
|
---|
| 781 | case MMLOOKUPHYPERTYPE_DYNAMIC:
|
---|
| 782 | break;
|
---|
| 783 |
|
---|
| 784 | default:
|
---|
| 785 | AssertMsgFailed(("enmType=%d\n", pCur->enmType));
|
---|
| 786 | break;
|
---|
| 787 | }
|
---|
| 788 |
|
---|
| 789 | /* next */
|
---|
| 790 | if (pCur->offNext == (int32_t)NIL_OFFSET)
|
---|
| 791 | break;
|
---|
| 792 | pCur = (PMMLOOKUPHYPER)((uint8_t *)pCur + pCur->offNext);
|
---|
[1] | 793 | }
|
---|
| 794 | /* give up */
|
---|
| 795 | return VERR_INVALID_POINTER;
|
---|
| 796 | }
|
---|
| 797 |
|
---|
| 798 |
|
---|
| 799 |
|
---|
| 800 | /**
|
---|
[17372] | 801 | * Get the size of the base RAM.
|
---|
[33540] | 802 | * This usually means the size of the first contiguous block of physical memory.
|
---|
[17372] | 803 | *
|
---|
| 804 | * @returns The guest base RAM size.
|
---|
[58122] | 805 | * @param pVM The cross context VM structure.
|
---|
[17372] | 806 | * @thread Any.
|
---|
| 807 | *
|
---|
| 808 | * @deprecated
|
---|
| 809 | */
|
---|
| 810 | VMMR3DECL(uint64_t) MMR3PhysGetRamSize(PVM pVM)
|
---|
| 811 | {
|
---|
| 812 | return pVM->mm.s.cbRamBase;
|
---|
| 813 | }
|
---|
| 814 |
|
---|
[63660] | 815 |
|
---|
| 816 | /**
|
---|
| 817 | * Get the size of RAM below 4GB (starts at address 0x00000000).
|
---|
| 818 | *
|
---|
| 819 | * @returns The amount of RAM below 4GB in bytes.
|
---|
| 820 | * @param pVM The cross context VM structure.
|
---|
| 821 | * @thread Any.
|
---|
| 822 | */
|
---|
| 823 | VMMR3DECL(uint32_t) MMR3PhysGetRamSizeBelow4GB(PVM pVM)
|
---|
| 824 | {
|
---|
| 825 | VM_ASSERT_VALID_EXT_RETURN(pVM, UINT32_MAX);
|
---|
| 826 | return pVM->mm.s.cbRamBelow4GB;
|
---|
| 827 | }
|
---|
| 828 |
|
---|
| 829 |
|
---|
| 830 | /**
|
---|
| 831 | * Get the size of RAM above 4GB (starts at address 0x000100000000).
|
---|
| 832 | *
|
---|
| 833 | * @returns The amount of RAM above 4GB in bytes.
|
---|
| 834 | * @param pVM The cross context VM structure.
|
---|
| 835 | * @thread Any.
|
---|
| 836 | */
|
---|
| 837 | VMMR3DECL(uint64_t) MMR3PhysGetRamSizeAbove4GB(PVM pVM)
|
---|
| 838 | {
|
---|
| 839 | VM_ASSERT_VALID_EXT_RETURN(pVM, UINT64_MAX);
|
---|
[63664] | 840 | return pVM->mm.s.cbRamAbove4GB;
|
---|
[63660] | 841 | }
|
---|
| 842 |
|
---|
| 843 |
|
---|
| 844 | /**
|
---|
| 845 | * Get the size of the RAM hole below 4GB.
|
---|
| 846 | *
|
---|
| 847 | * @returns Size in bytes.
|
---|
| 848 | * @param pVM The cross context VM structure.
|
---|
| 849 | * @thread Any.
|
---|
| 850 | */
|
---|
| 851 | VMMR3DECL(uint32_t) MMR3PhysGet4GBRamHoleSize(PVM pVM)
|
---|
| 852 | {
|
---|
| 853 | VM_ASSERT_VALID_EXT_RETURN(pVM, UINT32_MAX);
|
---|
| 854 | return pVM->mm.s.cbRamHole;
|
---|
| 855 | }
|
---|
| 856 |
|
---|