| 1 | /* $Id: PDM.cpp 36041 2011-02-21 16:04:53Z vboxsync $ */
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| 2 | /** @file
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| 3 | * PDM - Pluggable Device Manager.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2007 Oracle Corporation
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| 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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| 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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| 16 | */
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| 17 |
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| 18 |
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| 19 | /** @page pg_pdm PDM - The Pluggable Device & Driver Manager
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| 20 | *
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| 21 | * VirtualBox is designed to be very configurable, i.e. the ability to select
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| 22 | * virtual devices and configure them uniquely for a VM. For this reason
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| 23 | * virtual devices are not statically linked with the VMM but loaded, linked and
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| 24 | * instantiated at runtime by PDM using the information found in the
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| 25 | * Configuration Manager (CFGM).
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| 26 | *
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| 27 | * While the chief purpose of PDM is to manager of devices their drivers, it
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| 28 | * also serves as somewhere to put usful things like cross context queues, cross
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| 29 | * context synchronization (like critsect), VM centric thread management,
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| 30 | * asynchronous I/O framework, and so on.
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| 31 | *
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| 32 | * @see grp_pdm
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| 33 | *
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| 34 | *
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| 35 | * @section sec_pdm_dev The Pluggable Devices
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| 36 | *
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| 37 | * Devices register themselves when the module containing them is loaded. PDM
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| 38 | * will call the entry point 'VBoxDevicesRegister' when loading a device module.
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| 39 | * The device module will then use the supplied callback table to check the VMM
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| 40 | * version and to register its devices. Each device have an unique (for the
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| 41 | * configured VM) name. The name is not only used in PDM but also in CFGM (to
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| 42 | * organize device and device instance settings) and by anyone who wants to talk
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| 43 | * to a specific device instance.
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| 44 | *
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| 45 | * When all device modules have been successfully loaded PDM will instantiate
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| 46 | * those devices which are configured for the VM. Note that a device may have
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| 47 | * more than one instance, see network adaptors for instance. When
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| 48 | * instantiating a device PDM provides device instance memory and a callback
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| 49 | * table (aka Device Helpers / DevHlp) with the VM APIs which the device
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| 50 | * instance is trusted with.
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| 51 | *
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| 52 | * Some devices are trusted devices, most are not. The trusted devices are an
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| 53 | * integrated part of the VM and can obtain the VM handle from their device
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| 54 | * instance handles, thus enabling them to call any VM api. Untrusted devices
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| 55 | * can only use the callbacks provided during device instantiation.
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| 56 | *
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| 57 | * The main purpose in having DevHlps rather than just giving all the devices
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| 58 | * the VM handle and let them call the internal VM APIs directly, is both to
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| 59 | * create a binary interface that can be supported across releases and to
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| 60 | * create a barrier between devices and the VM. (The trusted / untrusted bit
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| 61 | * hasn't turned out to be of much use btw., but it's easy to maintain so there
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| 62 | * isn't any point in removing it.)
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| 63 | *
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| 64 | * A device can provide a ring-0 and/or a raw-mode context extension to improve
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| 65 | * the VM performance by handling exits and traps (respectively) without
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| 66 | * requiring context switches (to ring-3). Callbacks for MMIO and I/O ports can
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| 67 | * needs to be registered specifically for the additional contexts for this to
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| 68 | * make sense. Also, the device has to be trusted to be loaded into R0/RC
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| 69 | * because of the extra privilege it entails. Note that raw-mode code and data
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| 70 | * will be subject to relocation.
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| 71 | *
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| 72 | *
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| 73 | * @section sec_pdm_special_devs Special Devices
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| 74 | *
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| 75 | * Several kinds of devices interacts with the VMM and/or other device and PDM
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| 76 | * will work like a mediator for these. The typical pattern is that the device
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| 77 | * calls a special registration device helper with a set of callbacks, PDM
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| 78 | * responds by copying this and providing a pointer to a set helper callbacks
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| 79 | * for that particular kind of device. Unlike interfaces where the callback
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| 80 | * table pointer is used a 'this' pointer, these arrangements will use the
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| 81 | * device instance pointer (PPDMDEVINS) as a kind of 'this' pointer.
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| 82 | *
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| 83 | * For an example of this kind of setup, see the PIC. The PIC registers itself
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| 84 | * by calling PDMDEVHLPR3::pfnPICRegister. PDM saves the device instance,
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| 85 | * copies the callback tables (PDMPICREG), resolving the ring-0 and raw-mode
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| 86 | * addresses in the process, and hands back the pointer to a set of helper
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| 87 | * methods (PDMPICHLPR3). The PCI device then queries the ring-0 and raw-mode
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| 88 | * helpers using PDMPICHLPR3::pfnGetR0Helpers and PDMPICHLPR3::pfnGetRCHelpers.
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| 89 | * The PCI device repeats ths pfnGetRCHelpers call in it's relocation method
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| 90 | * since the address changes when RC is relocated.
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| 91 | *
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| 92 | * @see grp_pdm_device
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| 93 | *
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| 94 | *
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| 95 | * @section sec_pdm_usbdev The Pluggable USB Devices
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| 96 | *
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| 97 | * USB devices are handled a little bit differently than other devices. The
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| 98 | * general concepts wrt. pluggability are mostly the same, but the details
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| 99 | * varies. The registration entry point is 'VBoxUsbRegister', the device
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| 100 | * instance is PDMUSBINS and the callbacks helpers are different. Also, USB
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| 101 | * device are restricted to ring-3 and cannot have any ring-0 or raw-mode
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| 102 | * extensions (at least not yet).
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| 103 | *
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| 104 | * The way USB devices work differs greatly from other devices though since they
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| 105 | * aren't attaches directly to the PCI/ISA/whatever system buses but via a
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| 106 | * USB host control (OHCI, UHCI or EHCI). USB devices handles USB requests
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| 107 | * (URBs) and does not register I/O ports, MMIO ranges or PCI bus
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| 108 | * devices/functions.
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| 109 | *
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| 110 | * @see grp_pdm_usbdev
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| 111 | *
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| 112 | *
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| 113 | * @section sec_pdm_drv The Pluggable Drivers
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| 114 | *
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| 115 | * The VM devices are often accessing host hardware or OS facilities. For most
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| 116 | * devices these facilities can be abstracted in one or more levels. These
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| 117 | * abstractions are called drivers.
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| 118 | *
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| 119 | * For instance take a DVD/CD drive. This can be connected to a SCSI
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| 120 | * controller, an ATA controller or a SATA controller. The basics of the DVD/CD
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| 121 | * drive implementation remains the same - eject, insert, read, seek, and such.
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| 122 | * (For the scsi case, you might wanna speak SCSI directly to, but that can of
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| 123 | * course be fixed - see SCSI passthru.) So, it
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| 124 | * makes much sense to have a generic CD/DVD driver which implements this.
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| 125 | *
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| 126 | * Then the media 'inserted' into the DVD/CD drive can be a ISO image, or it can
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| 127 | * be read from a real CD or DVD drive (there are probably other custom formats
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| 128 | * someone could desire to read or construct too). So, it would make sense to
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| 129 | * have abstracted interfaces for dealing with this in a generic way so the
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| 130 | * cdrom unit doesn't have to implement it all. Thus we have created the
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| 131 | * CDROM/DVD media driver family.
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| 132 | *
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| 133 | * So, for this example the IDE controller #1 (i.e. secondary) will have
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| 134 | * the DVD/CD Driver attached to it's LUN #0 (master). When a media is mounted
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| 135 | * the DVD/CD Driver will have a ISO, HostDVD or RAW (media) Driver attached.
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| 136 | *
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| 137 | * It is possible to configure many levels of drivers inserting filters, loggers,
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| 138 | * or whatever you desire into the chain. We're using this for network sniffing
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| 139 | * for instance.
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| 140 | *
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| 141 | * The drivers are loaded in a similar manner to that of the device, namely by
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| 142 | * iterating a keyspace in CFGM, load the modules listed there and call
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| 143 | * 'VBoxDriversRegister' with a callback table.
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| 144 | *
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| 145 | * @see grp_pdm_driver
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| 146 | *
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| 147 | *
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| 148 | * @section sec_pdm_ifs Interfaces
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| 149 | *
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| 150 | * The pluggable drivers and devices exposes one standard interface (callback
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| 151 | * table) which is used to construct, destruct, attach, detach,( ++,) and query
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| 152 | * other interfaces. A device will query the interfaces required for it's
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| 153 | * operation during init and hot-plug. PDM may query some interfaces during
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| 154 | * runtime mounting too.
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| 155 | *
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| 156 | * An interface here means a function table contained within the device or
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| 157 | * driver instance data. Its method are invoked with the function table pointer
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| 158 | * as the first argument and they will calculate the address of the device or
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| 159 | * driver instance data from it. (This is one of the aspects which *might* have
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| 160 | * been better done in C++.)
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| 161 | *
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| 162 | * @see grp_pdm_interfaces
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| 163 | *
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| 164 | *
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| 165 | * @section sec_pdm_utils Utilities
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| 166 | *
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| 167 | * As mentioned earlier, PDM is the location of any usful constructs that doesn't
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| 168 | * quite fit into IPRT. The next subsections will discuss these.
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| 169 | *
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| 170 | * One thing these APIs all have in common is that resources will be associated
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| 171 | * with a device / driver and automatically freed after it has been destroyed if
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| 172 | * the destructor didn't do this.
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| 173 | *
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| 174 | *
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| 175 | * @subsection sec_pdm_async_completion Async I/O
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| 176 | *
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| 177 | * The PDM Async I/O API provides a somewhat platform agnostic interface for
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| 178 | * asynchronous I/O. For reasons of performance and complexity this does not
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| 179 | * build upon any IPRT API.
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| 180 | *
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| 181 | * @todo more details.
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| 182 | *
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| 183 | * @see grp_pdm_async_completion
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| 184 | *
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| 185 | *
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| 186 | * @subsection sec_pdm_async_task Async Task - not implemented
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| 187 | *
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| 188 | * @todo implement and describe
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| 189 | *
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| 190 | * @see grp_pdm_async_task
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| 191 | *
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| 192 | *
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| 193 | * @subsection sec_pdm_critsect Critical Section
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| 194 | *
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| 195 | * The PDM Critical Section API is currently building on the IPRT API with the
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| 196 | * same name. It adds the possibility to use critical sections in ring-0 and
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| 197 | * raw-mode as well as in ring-3. There are certain restrictions on the RC and
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| 198 | * R0 usage though since we're not able to wait on it, nor wake up anyone that
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| 199 | * is waiting on it. These restrictions origins with the use of a ring-3 event
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| 200 | * semaphore. In a later incarnation we plan to replace the ring-3 event
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| 201 | * semaphore with a ring-0 one, thus enabling us to wake up waiters while
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| 202 | * exectuing in ring-0 and making the hardware assisted execution mode more
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| 203 | * efficient. (Raw-mode won't benefit much from this, naturally.)
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| 204 | *
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| 205 | * @see grp_pdm_critsect
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| 206 | *
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| 207 | *
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| 208 | * @subsection sec_pdm_queue Queue
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| 209 | *
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| 210 | * The PDM Queue API is for queuing one or more tasks for later consumption in
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| 211 | * ring-3 by EMT, and optionally forcing a delayed or ASAP return to ring-3. The
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| 212 | * queues can also be run on a timer basis as an alternative to the ASAP thing.
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| 213 | * The queue will be flushed at forced action time.
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| 214 | *
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| 215 | * A queue can also be used by another thread (a I/O worker for instance) to
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| 216 | * send work / events over to the EMT.
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| 217 | *
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| 218 | * @see grp_pdm_queue
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| 219 | *
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| 220 | *
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| 221 | * @subsection sec_pdm_task Task - not implemented yet
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| 222 | *
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| 223 | * The PDM Task API is for flagging a task for execution at a later point when
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| 224 | * we're back in ring-3, optionally forcing the ring-3 return to happen ASAP.
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| 225 | * As you can see the concept is similar to queues only simpler.
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| 226 | *
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| 227 | * A task can also be scheduled by another thread (a I/O worker for instance) as
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| 228 | * a mean of getting something done in EMT.
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| 229 | *
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| 230 | * @see grp_pdm_task
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| 231 | *
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| 232 | *
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| 233 | * @subsection sec_pdm_thread Thread
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| 234 | *
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| 235 | * The PDM Thread API is there to help devices and drivers manage their threads
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| 236 | * correctly wrt. power on, suspend, resume, power off and destruction.
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| 237 | *
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| 238 | * The general usage pattern for threads in the employ of devices and drivers is
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| 239 | * that they shuffle data or requests while the VM is running and stop doing
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| 240 | * this when the VM is paused or powered down. Rogue threads running while the
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| 241 | * VM is paused can cause the state to change during saving or have other
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| 242 | * unwanted side effects. The PDM Threads API ensures that this won't happen.
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| 243 | *
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| 244 | * @see grp_pdm_thread
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| 245 | *
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| 246 | */
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| 247 |
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| 248 |
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| 249 | /*******************************************************************************
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| 250 | * Header Files *
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| 251 | *******************************************************************************/
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| 252 | #define LOG_GROUP LOG_GROUP_PDM
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| 253 | #include "PDMInternal.h"
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| 254 | #include <VBox/vmm/pdm.h>
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| 255 | #include <VBox/vmm/mm.h>
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| 256 | #include <VBox/vmm/pgm.h>
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| 257 | #include <VBox/vmm/ssm.h>
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| 258 | #include <VBox/vmm/vm.h>
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| 259 | #include <VBox/vmm/uvm.h>
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| 260 | #include <VBox/vmm/vmm.h>
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| 261 | #include <VBox/param.h>
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| 262 | #include <VBox/err.h>
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| 263 | #include <VBox/sup.h>
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| 264 |
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| 265 | #include <VBox/log.h>
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| 266 | #include <iprt/asm.h>
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| 267 | #include <iprt/assert.h>
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| 268 | #include <iprt/alloc.h>
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| 269 | #include <iprt/ldr.h>
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| 270 | #include <iprt/path.h>
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| 271 | #include <iprt/string.h>
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| 272 |
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| 273 |
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| 274 | /*******************************************************************************
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| 275 | * Defined Constants And Macros *
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| 276 | *******************************************************************************/
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| 277 | /** The PDM saved state version. */
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| 278 | #define PDM_SAVED_STATE_VERSION 4
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| 279 | #define PDM_SAVED_STATE_VERSION_PRE_NMI_FF 3
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| 280 |
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| 281 |
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| 282 | /*******************************************************************************
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| 283 | * Structures and Typedefs *
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| 284 | *******************************************************************************/
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| 285 | /**
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| 286 | * Statistics of asynchronous notification tasks - used by reset, suspend and
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| 287 | * power off.
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| 288 | */
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| 289 | typedef struct PDMNOTIFYASYNCSTATS
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| 290 | {
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| 291 | /** The the start timestamp. */
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| 292 | uint64_t uStartNsTs;
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| 293 | /** When to log the next time. */
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| 294 | uint64_t cNsElapsedNextLog;
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| 295 | /** The loop counter. */
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| 296 | uint32_t cLoops;
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| 297 | /** The number of pending asynchronous notification tasks. */
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| 298 | uint32_t cAsync;
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| 299 | /** The name of the operation (log prefix). */
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| 300 | const char *pszOp;
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| 301 | /** The current list buffer position. */
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| 302 | size_t offList;
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| 303 | /** String containing a list of the pending tasks. */
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| 304 | char szList[1024];
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| 305 | } PDMNOTIFYASYNCSTATS;
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| 306 | /** Pointer to the stats of pending asynchronous notification tasks. */
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| 307 | typedef PDMNOTIFYASYNCSTATS *PPDMNOTIFYASYNCSTATS;
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| 308 |
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| 309 |
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| 310 | /*******************************************************************************
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| 311 | * Internal Functions *
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| 312 | *******************************************************************************/
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| 313 | static DECLCALLBACK(int) pdmR3LiveExec(PVM pVM, PSSMHANDLE pSSM, uint32_t uPass);
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| 314 | static DECLCALLBACK(int) pdmR3SaveExec(PVM pVM, PSSMHANDLE pSSM);
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| 315 | static DECLCALLBACK(int) pdmR3LoadExec(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
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| 316 | static DECLCALLBACK(int) pdmR3LoadPrep(PVM pVM, PSSMHANDLE pSSM);
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| 317 |
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| 318 |
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| 319 |
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| 320 | /**
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| 321 | * Initializes the PDM part of the UVM.
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| 322 | *
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| 323 | * This doesn't really do much right now but has to be here for the sake
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| 324 | * of completeness.
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| 325 | *
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| 326 | * @returns VBox status code.
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| 327 | * @param pUVM Pointer to the user mode VM structure.
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| 328 | */
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| 329 | VMMR3DECL(int) PDMR3InitUVM(PUVM pUVM)
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| 330 | {
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| 331 | AssertCompile(sizeof(pUVM->pdm.s) <= sizeof(pUVM->pdm.padding));
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| 332 | AssertRelease(sizeof(pUVM->pdm.s) <= sizeof(pUVM->pdm.padding));
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| 333 | pUVM->pdm.s.pModules = NULL;
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| 334 | pUVM->pdm.s.pCritSects = NULL;
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| 335 | return RTCritSectInit(&pUVM->pdm.s.ListCritSect);
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| 336 | }
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| 337 |
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| 338 |
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| 339 | /**
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| 340 | * Initializes the PDM.
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| 341 | *
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| 342 | * @returns VBox status code.
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| 343 | * @param pVM The VM to operate on.
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| 344 | */
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| 345 | VMMR3DECL(int) PDMR3Init(PVM pVM)
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| 346 | {
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| 347 | LogFlow(("PDMR3Init\n"));
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| 348 |
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| 349 | /*
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| 350 | * Assert alignment and sizes.
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| 351 | */
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| 352 | AssertRelease(!(RT_OFFSETOF(VM, pdm.s) & 31));
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| 353 | AssertRelease(sizeof(pVM->pdm.s) <= sizeof(pVM->pdm.padding));
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| 354 | AssertCompileMemberAlignment(PDM, CritSect, sizeof(uintptr_t));
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| 355 | /*
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| 356 | * Init the structure.
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| 357 | */
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| 358 | pVM->pdm.s.offVM = RT_OFFSETOF(VM, pdm.s);
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| 359 | pVM->pdm.s.GCPhysVMMDevHeap = NIL_RTGCPHYS;
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| 360 |
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| 361 | /*
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| 362 | * Initialize sub components.
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| 363 | */
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| 364 | int rc = pdmR3CritSectInitStats(pVM);
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| 365 | if (RT_SUCCESS(rc))
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| 366 | rc = PDMR3CritSectInit(pVM, &pVM->pdm.s.CritSect, RT_SRC_POS, "PDM");
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| 367 | if (RT_SUCCESS(rc))
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| 368 | rc = pdmR3LdrInitU(pVM->pUVM);
|
|---|
| 369 | #ifdef VBOX_WITH_PDM_ASYNC_COMPLETION
|
|---|
| 370 | if (RT_SUCCESS(rc))
|
|---|
| 371 | rc = pdmR3AsyncCompletionInit(pVM);
|
|---|
| 372 | #endif
|
|---|
| 373 | if (RT_SUCCESS(rc))
|
|---|
| 374 | rc = pdmR3BlkCacheInit(pVM);
|
|---|
| 375 | if (RT_SUCCESS(rc))
|
|---|
| 376 | rc = pdmR3DrvInit(pVM);
|
|---|
| 377 | if (RT_SUCCESS(rc))
|
|---|
| 378 | rc = pdmR3DevInit(pVM);
|
|---|
| 379 | if (RT_SUCCESS(rc))
|
|---|
| 380 | {
|
|---|
| 381 | /*
|
|---|
| 382 | * Register the saved state data unit.
|
|---|
| 383 | */
|
|---|
| 384 | rc = SSMR3RegisterInternal(pVM, "pdm", 1, PDM_SAVED_STATE_VERSION, 128,
|
|---|
| 385 | NULL, pdmR3LiveExec, NULL,
|
|---|
| 386 | NULL, pdmR3SaveExec, NULL,
|
|---|
| 387 | pdmR3LoadPrep, pdmR3LoadExec, NULL);
|
|---|
| 388 | if (RT_SUCCESS(rc))
|
|---|
| 389 | {
|
|---|
| 390 | LogFlow(("PDM: Successfully initialized\n"));
|
|---|
| 391 | return rc;
|
|---|
| 392 | }
|
|---|
| 393 | }
|
|---|
| 394 |
|
|---|
| 395 | /*
|
|---|
| 396 | * Cleanup and return failure.
|
|---|
| 397 | */
|
|---|
| 398 | PDMR3Term(pVM);
|
|---|
| 399 | LogFlow(("PDMR3Init: returns %Rrc\n", rc));
|
|---|
| 400 | return rc;
|
|---|
| 401 | }
|
|---|
| 402 |
|
|---|
| 403 |
|
|---|
| 404 | /**
|
|---|
| 405 | * Applies relocations to data and code managed by this
|
|---|
| 406 | * component. This function will be called at init and
|
|---|
| 407 | * whenever the VMM need to relocate it self inside the GC.
|
|---|
| 408 | *
|
|---|
| 409 | * @param pVM VM handle.
|
|---|
| 410 | * @param offDelta Relocation delta relative to old location.
|
|---|
| 411 | * @remark The loader subcomponent is relocated by PDMR3LdrRelocate() very
|
|---|
| 412 | * early in the relocation phase.
|
|---|
| 413 | */
|
|---|
| 414 | VMMR3DECL(void) PDMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
|
|---|
| 415 | {
|
|---|
| 416 | LogFlow(("PDMR3Relocate\n"));
|
|---|
| 417 |
|
|---|
| 418 | /*
|
|---|
| 419 | * Queues.
|
|---|
| 420 | */
|
|---|
| 421 | pdmR3QueueRelocate(pVM, offDelta);
|
|---|
| 422 | pVM->pdm.s.pDevHlpQueueRC = PDMQueueRCPtr(pVM->pdm.s.pDevHlpQueueR3);
|
|---|
| 423 |
|
|---|
| 424 | /*
|
|---|
| 425 | * Critical sections.
|
|---|
| 426 | */
|
|---|
| 427 | pdmR3CritSectRelocate(pVM);
|
|---|
| 428 |
|
|---|
| 429 | /*
|
|---|
| 430 | * The registered PIC.
|
|---|
| 431 | */
|
|---|
| 432 | if (pVM->pdm.s.Pic.pDevInsRC)
|
|---|
| 433 | {
|
|---|
| 434 | pVM->pdm.s.Pic.pDevInsRC += offDelta;
|
|---|
| 435 | pVM->pdm.s.Pic.pfnSetIrqRC += offDelta;
|
|---|
| 436 | pVM->pdm.s.Pic.pfnGetInterruptRC += offDelta;
|
|---|
| 437 | }
|
|---|
| 438 |
|
|---|
| 439 | /*
|
|---|
| 440 | * The registered APIC.
|
|---|
| 441 | */
|
|---|
| 442 | if (pVM->pdm.s.Apic.pDevInsRC)
|
|---|
| 443 | {
|
|---|
| 444 | pVM->pdm.s.Apic.pDevInsRC += offDelta;
|
|---|
| 445 | pVM->pdm.s.Apic.pfnGetInterruptRC += offDelta;
|
|---|
| 446 | pVM->pdm.s.Apic.pfnSetBaseRC += offDelta;
|
|---|
| 447 | pVM->pdm.s.Apic.pfnGetBaseRC += offDelta;
|
|---|
| 448 | pVM->pdm.s.Apic.pfnSetTPRRC += offDelta;
|
|---|
| 449 | pVM->pdm.s.Apic.pfnGetTPRRC += offDelta;
|
|---|
| 450 | pVM->pdm.s.Apic.pfnBusDeliverRC += offDelta;
|
|---|
| 451 | if (pVM->pdm.s.Apic.pfnLocalInterruptRC)
|
|---|
| 452 | pVM->pdm.s.Apic.pfnLocalInterruptRC += offDelta;
|
|---|
| 453 | pVM->pdm.s.Apic.pfnWriteMSRRC += offDelta;
|
|---|
| 454 | pVM->pdm.s.Apic.pfnReadMSRRC += offDelta;
|
|---|
| 455 | }
|
|---|
| 456 |
|
|---|
| 457 | /*
|
|---|
| 458 | * The registered I/O APIC.
|
|---|
| 459 | */
|
|---|
| 460 | if (pVM->pdm.s.IoApic.pDevInsRC)
|
|---|
| 461 | {
|
|---|
| 462 | pVM->pdm.s.IoApic.pDevInsRC += offDelta;
|
|---|
| 463 | pVM->pdm.s.IoApic.pfnSetIrqRC += offDelta;
|
|---|
| 464 | if (pVM->pdm.s.IoApic.pfnSendMsiRC)
|
|---|
| 465 | pVM->pdm.s.IoApic.pfnSendMsiRC += offDelta;
|
|---|
| 466 | }
|
|---|
| 467 |
|
|---|
| 468 | /*
|
|---|
| 469 | * The register PCI Buses.
|
|---|
| 470 | */
|
|---|
| 471 | for (unsigned i = 0; i < RT_ELEMENTS(pVM->pdm.s.aPciBuses); i++)
|
|---|
| 472 | {
|
|---|
| 473 | if (pVM->pdm.s.aPciBuses[i].pDevInsRC)
|
|---|
| 474 | {
|
|---|
| 475 | pVM->pdm.s.aPciBuses[i].pDevInsRC += offDelta;
|
|---|
| 476 | pVM->pdm.s.aPciBuses[i].pfnSetIrqRC += offDelta;
|
|---|
| 477 | }
|
|---|
| 478 | }
|
|---|
| 479 |
|
|---|
| 480 | /*
|
|---|
| 481 | * Devices & Drivers.
|
|---|
| 482 | */
|
|---|
| 483 | PCPDMDEVHLPRC pDevHlpRC;
|
|---|
| 484 | int rc = PDMR3LdrGetSymbolRC(pVM, NULL, "g_pdmRCDevHlp", &pDevHlpRC);
|
|---|
| 485 | AssertReleaseMsgRC(rc, ("rc=%Rrc when resolving g_pdmRCDevHlp\n", rc));
|
|---|
| 486 |
|
|---|
| 487 | PCPDMDRVHLPRC pDrvHlpRC;
|
|---|
| 488 | rc = PDMR3LdrGetSymbolRC(pVM, NULL, "g_pdmRCDevHlp", &pDrvHlpRC);
|
|---|
| 489 | AssertReleaseMsgRC(rc, ("rc=%Rrc when resolving g_pdmRCDevHlp\n", rc));
|
|---|
| 490 |
|
|---|
| 491 | for (PPDMDEVINS pDevIns = pVM->pdm.s.pDevInstances; pDevIns; pDevIns = pDevIns->Internal.s.pNextR3)
|
|---|
| 492 | {
|
|---|
| 493 | if (pDevIns->pReg->fFlags & PDM_DEVREG_FLAGS_RC)
|
|---|
| 494 | {
|
|---|
| 495 | pDevIns->pHlpRC = pDevHlpRC;
|
|---|
| 496 | pDevIns->pvInstanceDataRC = MMHyperR3ToRC(pVM, pDevIns->pvInstanceDataR3);
|
|---|
| 497 | if (pDevIns->pCritSectR3)
|
|---|
| 498 | pDevIns->pCritSectRC = MMHyperR3ToRC(pVM, pDevIns->pCritSectR3);
|
|---|
| 499 | pDevIns->Internal.s.pVMRC = pVM->pVMRC;
|
|---|
| 500 | if (pDevIns->Internal.s.pPciBusR3)
|
|---|
| 501 | pDevIns->Internal.s.pPciBusRC = MMHyperR3ToRC(pVM, pDevIns->Internal.s.pPciBusR3);
|
|---|
| 502 | if (pDevIns->Internal.s.pPciDeviceR3)
|
|---|
| 503 | pDevIns->Internal.s.pPciDeviceRC = MMHyperR3ToRC(pVM, pDevIns->Internal.s.pPciDeviceR3);
|
|---|
| 504 | if (pDevIns->pReg->pfnRelocate)
|
|---|
| 505 | {
|
|---|
| 506 | LogFlow(("PDMR3Relocate: Relocating device '%s'/%d\n",
|
|---|
| 507 | pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 508 | pDevIns->pReg->pfnRelocate(pDevIns, offDelta);
|
|---|
| 509 | }
|
|---|
| 510 | }
|
|---|
| 511 |
|
|---|
| 512 | for (PPDMLUN pLun = pDevIns->Internal.s.pLunsR3; pLun; pLun = pLun->pNext)
|
|---|
| 513 | {
|
|---|
| 514 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns; pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 515 | {
|
|---|
| 516 | if (pDrvIns->pReg->fFlags & PDM_DRVREG_FLAGS_RC)
|
|---|
| 517 | {
|
|---|
| 518 | pDrvIns->pHlpRC = pDrvHlpRC;
|
|---|
| 519 | pDrvIns->pvInstanceDataRC = MMHyperR3ToRC(pVM, pDrvIns->pvInstanceDataR3);
|
|---|
| 520 | pDrvIns->Internal.s.pVMRC = pVM->pVMRC;
|
|---|
| 521 | if (pDrvIns->pReg->pfnRelocate)
|
|---|
| 522 | {
|
|---|
| 523 | LogFlow(("PDMR3Relocate: Relocating driver '%s'/%u attached to '%s'/%d/%u\n",
|
|---|
| 524 | pDrvIns->pReg->szName, pDrvIns->iInstance,
|
|---|
| 525 | pDevIns->pReg->szName, pDevIns->iInstance, pLun->iLun));
|
|---|
| 526 | pDrvIns->pReg->pfnRelocate(pDrvIns, offDelta);
|
|---|
| 527 | }
|
|---|
| 528 | }
|
|---|
| 529 | }
|
|---|
| 530 | }
|
|---|
| 531 |
|
|---|
| 532 | }
|
|---|
| 533 | }
|
|---|
| 534 |
|
|---|
| 535 |
|
|---|
| 536 | /**
|
|---|
| 537 | * Worker for pdmR3Term that terminates a LUN chain.
|
|---|
| 538 | *
|
|---|
| 539 | * @param pVM Pointer to the shared VM structure.
|
|---|
| 540 | * @param pLun The head of the chain.
|
|---|
| 541 | * @param pszDevice The name of the device (for logging).
|
|---|
| 542 | * @param iInstance The device instance number (for logging).
|
|---|
| 543 | */
|
|---|
| 544 | static void pdmR3TermLuns(PVM pVM, PPDMLUN pLun, const char *pszDevice, unsigned iInstance)
|
|---|
| 545 | {
|
|---|
| 546 | for (; pLun; pLun = pLun->pNext)
|
|---|
| 547 | {
|
|---|
| 548 | /*
|
|---|
| 549 | * Destroy them one at a time from the bottom up.
|
|---|
| 550 | * (The serial device/drivers depends on this - bad.)
|
|---|
| 551 | */
|
|---|
| 552 | PPDMDRVINS pDrvIns = pLun->pBottom;
|
|---|
| 553 | pLun->pBottom = pLun->pTop = NULL;
|
|---|
| 554 | while (pDrvIns)
|
|---|
| 555 | {
|
|---|
| 556 | PPDMDRVINS pDrvNext = pDrvIns->Internal.s.pUp;
|
|---|
| 557 |
|
|---|
| 558 | if (pDrvIns->pReg->pfnDestruct)
|
|---|
| 559 | {
|
|---|
| 560 | LogFlow(("pdmR3DevTerm: Destroying - driver '%s'/%d on LUN#%d of device '%s'/%d\n",
|
|---|
| 561 | pDrvIns->pReg->szName, pDrvIns->iInstance, pLun->iLun, pszDevice, iInstance));
|
|---|
| 562 | pDrvIns->pReg->pfnDestruct(pDrvIns);
|
|---|
| 563 | }
|
|---|
| 564 | pDrvIns->Internal.s.pDrv->cInstances--;
|
|---|
| 565 |
|
|---|
| 566 | TMR3TimerDestroyDriver(pVM, pDrvIns);
|
|---|
| 567 | //PDMR3QueueDestroyDriver(pVM, pDrvIns);
|
|---|
| 568 | //pdmR3ThreadDestroyDriver(pVM, pDrvIns);
|
|---|
| 569 | SSMR3DeregisterDriver(pVM, pDrvIns, NULL, 0);
|
|---|
| 570 |
|
|---|
| 571 | pDrvIns = pDrvNext;
|
|---|
| 572 | }
|
|---|
| 573 | }
|
|---|
| 574 | }
|
|---|
| 575 |
|
|---|
| 576 |
|
|---|
| 577 | /**
|
|---|
| 578 | * Terminates the PDM.
|
|---|
| 579 | *
|
|---|
| 580 | * Termination means cleaning up and freeing all resources,
|
|---|
| 581 | * the VM it self is at this point powered off or suspended.
|
|---|
| 582 | *
|
|---|
| 583 | * @returns VBox status code.
|
|---|
| 584 | * @param pVM The VM to operate on.
|
|---|
| 585 | */
|
|---|
| 586 | VMMR3DECL(int) PDMR3Term(PVM pVM)
|
|---|
| 587 | {
|
|---|
| 588 | LogFlow(("PDMR3Term:\n"));
|
|---|
| 589 | AssertMsg(pVM->pdm.s.offVM, ("bad init order!\n"));
|
|---|
| 590 |
|
|---|
| 591 | /*
|
|---|
| 592 | * Iterate the device instances and attach drivers, doing
|
|---|
| 593 | * relevant destruction processing.
|
|---|
| 594 | *
|
|---|
| 595 | * N.B. There is no need to mess around freeing memory allocated
|
|---|
| 596 | * from any MM heap since MM will do that in its Term function.
|
|---|
| 597 | */
|
|---|
| 598 | /* usb ones first. */
|
|---|
| 599 | for (PPDMUSBINS pUsbIns = pVM->pdm.s.pUsbInstances; pUsbIns; pUsbIns = pUsbIns->Internal.s.pNext)
|
|---|
| 600 | {
|
|---|
| 601 | pdmR3TermLuns(pVM, pUsbIns->Internal.s.pLuns, pUsbIns->pReg->szName, pUsbIns->iInstance);
|
|---|
| 602 |
|
|---|
| 603 | if (pUsbIns->pReg->pfnDestruct)
|
|---|
| 604 | {
|
|---|
| 605 | LogFlow(("pdmR3DevTerm: Destroying - device '%s'/%d\n",
|
|---|
| 606 | pUsbIns->pReg->szName, pUsbIns->iInstance));
|
|---|
| 607 | pUsbIns->pReg->pfnDestruct(pUsbIns);
|
|---|
| 608 | }
|
|---|
| 609 |
|
|---|
| 610 | //TMR3TimerDestroyUsb(pVM, pUsbIns);
|
|---|
| 611 | //SSMR3DeregisterUsb(pVM, pUsbIns, NULL, 0);
|
|---|
| 612 | pdmR3ThreadDestroyUsb(pVM, pUsbIns);
|
|---|
| 613 | }
|
|---|
| 614 |
|
|---|
| 615 | /* then the 'normal' ones. */
|
|---|
| 616 | for (PPDMDEVINS pDevIns = pVM->pdm.s.pDevInstances; pDevIns; pDevIns = pDevIns->Internal.s.pNextR3)
|
|---|
| 617 | {
|
|---|
| 618 | pdmR3TermLuns(pVM, pDevIns->Internal.s.pLunsR3, pDevIns->pReg->szName, pDevIns->iInstance);
|
|---|
| 619 |
|
|---|
| 620 | if (pDevIns->pReg->pfnDestruct)
|
|---|
| 621 | {
|
|---|
| 622 | LogFlow(("pdmR3DevTerm: Destroying - device '%s'/%d\n",
|
|---|
| 623 | pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 624 | pDevIns->pReg->pfnDestruct(pDevIns);
|
|---|
| 625 | }
|
|---|
| 626 |
|
|---|
| 627 | TMR3TimerDestroyDevice(pVM, pDevIns);
|
|---|
| 628 | //SSMR3DeregisterDriver(pVM, pDevIns, NULL, 0);
|
|---|
| 629 | pdmR3CritSectDeleteDevice(pVM, pDevIns);
|
|---|
| 630 | //pdmR3ThreadDestroyDevice(pVM, pDevIns);
|
|---|
| 631 | //PDMR3QueueDestroyDevice(pVM, pDevIns);
|
|---|
| 632 | PGMR3PhysMMIO2Deregister(pVM, pDevIns, UINT32_MAX);
|
|---|
| 633 | }
|
|---|
| 634 |
|
|---|
| 635 | /*
|
|---|
| 636 | * Destroy all threads.
|
|---|
| 637 | */
|
|---|
| 638 | pdmR3ThreadDestroyAll(pVM);
|
|---|
| 639 |
|
|---|
| 640 | /*
|
|---|
| 641 | * Destroy the block cache.
|
|---|
| 642 | */
|
|---|
| 643 | pdmR3BlkCacheTerm(pVM);
|
|---|
| 644 |
|
|---|
| 645 | #ifdef VBOX_WITH_PDM_ASYNC_COMPLETION
|
|---|
| 646 | /*
|
|---|
| 647 | * Free async completion managers.
|
|---|
| 648 | */
|
|---|
| 649 | pdmR3AsyncCompletionTerm(pVM);
|
|---|
| 650 | #endif
|
|---|
| 651 |
|
|---|
| 652 | /*
|
|---|
| 653 | * Free modules.
|
|---|
| 654 | */
|
|---|
| 655 | pdmR3LdrTermU(pVM->pUVM);
|
|---|
| 656 |
|
|---|
| 657 | /*
|
|---|
| 658 | * Destroy the PDM lock.
|
|---|
| 659 | */
|
|---|
| 660 | PDMR3CritSectDelete(&pVM->pdm.s.CritSect);
|
|---|
| 661 | /* The MiscCritSect is deleted by PDMR3CritSectTerm. */
|
|---|
| 662 |
|
|---|
| 663 | LogFlow(("PDMR3Term: returns %Rrc\n", VINF_SUCCESS));
|
|---|
| 664 | return VINF_SUCCESS;
|
|---|
| 665 | }
|
|---|
| 666 |
|
|---|
| 667 |
|
|---|
| 668 | /**
|
|---|
| 669 | * Terminates the PDM part of the UVM.
|
|---|
| 670 | *
|
|---|
| 671 | * This will unload any modules left behind.
|
|---|
| 672 | *
|
|---|
| 673 | * @param pUVM Pointer to the user mode VM structure.
|
|---|
| 674 | */
|
|---|
| 675 | VMMR3DECL(void) PDMR3TermUVM(PUVM pUVM)
|
|---|
| 676 | {
|
|---|
| 677 | /*
|
|---|
| 678 | * In the normal cause of events we will now call pdmR3LdrTermU for
|
|---|
| 679 | * the second time. In the case of init failure however, this might
|
|---|
| 680 | * the first time, which is why we do it.
|
|---|
| 681 | */
|
|---|
| 682 | pdmR3LdrTermU(pUVM);
|
|---|
| 683 |
|
|---|
| 684 | Assert(pUVM->pdm.s.pCritSects == NULL);
|
|---|
| 685 | RTCritSectDelete(&pUVM->pdm.s.ListCritSect);
|
|---|
| 686 | }
|
|---|
| 687 |
|
|---|
| 688 |
|
|---|
| 689 | /**
|
|---|
| 690 | * Bits that are saved in pass 0 and in the final pass.
|
|---|
| 691 | *
|
|---|
| 692 | * @param pVM The VM handle.
|
|---|
| 693 | * @param pSSM The saved state handle.
|
|---|
| 694 | */
|
|---|
| 695 | static void pdmR3SaveBoth(PVM pVM, PSSMHANDLE pSSM)
|
|---|
| 696 | {
|
|---|
| 697 | /*
|
|---|
| 698 | * Save the list of device instances so we can check that they're all still
|
|---|
| 699 | * there when we load the state and that nothing new has been added.
|
|---|
| 700 | */
|
|---|
| 701 | uint32_t i = 0;
|
|---|
| 702 | for (PPDMDEVINS pDevIns = pVM->pdm.s.pDevInstances; pDevIns; pDevIns = pDevIns->Internal.s.pNextR3, i++)
|
|---|
| 703 | {
|
|---|
| 704 | SSMR3PutU32(pSSM, i);
|
|---|
| 705 | SSMR3PutStrZ(pSSM, pDevIns->pReg->szName);
|
|---|
| 706 | SSMR3PutU32(pSSM, pDevIns->iInstance);
|
|---|
| 707 | }
|
|---|
| 708 | SSMR3PutU32(pSSM, UINT32_MAX); /* terminator */
|
|---|
| 709 | }
|
|---|
| 710 |
|
|---|
| 711 |
|
|---|
| 712 | /**
|
|---|
| 713 | * Live save.
|
|---|
| 714 | *
|
|---|
| 715 | * @returns VBox status code.
|
|---|
| 716 | * @param pVM The VM handle.
|
|---|
| 717 | * @param pSSM The saved state handle.
|
|---|
| 718 | * @param uPass The pass.
|
|---|
| 719 | */
|
|---|
| 720 | static DECLCALLBACK(int) pdmR3LiveExec(PVM pVM, PSSMHANDLE pSSM, uint32_t uPass)
|
|---|
| 721 | {
|
|---|
| 722 | LogFlow(("pdmR3LiveExec:\n"));
|
|---|
| 723 | AssertReturn(uPass == 0, VERR_INTERNAL_ERROR_4);
|
|---|
| 724 | pdmR3SaveBoth(pVM, pSSM);
|
|---|
| 725 | return VINF_SSM_DONT_CALL_AGAIN;
|
|---|
| 726 | }
|
|---|
| 727 |
|
|---|
| 728 |
|
|---|
| 729 | /**
|
|---|
| 730 | * Execute state save operation.
|
|---|
| 731 | *
|
|---|
| 732 | * @returns VBox status code.
|
|---|
| 733 | * @param pVM The VM handle.
|
|---|
| 734 | * @param pSSM The saved state handle.
|
|---|
| 735 | */
|
|---|
| 736 | static DECLCALLBACK(int) pdmR3SaveExec(PVM pVM, PSSMHANDLE pSSM)
|
|---|
| 737 | {
|
|---|
| 738 | LogFlow(("pdmR3SaveExec:\n"));
|
|---|
| 739 |
|
|---|
| 740 | /*
|
|---|
| 741 | * Save interrupt and DMA states.
|
|---|
| 742 | */
|
|---|
| 743 | for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
|
|---|
| 744 | {
|
|---|
| 745 | PVMCPU pVCpu = &pVM->aCpus[idCpu];
|
|---|
| 746 | SSMR3PutU32(pSSM, VMCPU_FF_ISSET(pVCpu, VMCPU_FF_INTERRUPT_APIC));
|
|---|
| 747 | SSMR3PutU32(pSSM, VMCPU_FF_ISSET(pVCpu, VMCPU_FF_INTERRUPT_PIC));
|
|---|
| 748 | SSMR3PutU32(pSSM, VMCPU_FF_ISSET(pVCpu, VMCPU_FF_INTERRUPT_NMI));
|
|---|
| 749 | SSMR3PutU32(pSSM, VMCPU_FF_ISSET(pVCpu, VMCPU_FF_INTERRUPT_SMI));
|
|---|
| 750 | }
|
|---|
| 751 | SSMR3PutU32(pSSM, VM_FF_ISSET(pVM, VM_FF_PDM_DMA));
|
|---|
| 752 |
|
|---|
| 753 | pdmR3SaveBoth(pVM, pSSM);
|
|---|
| 754 | return VINF_SUCCESS;
|
|---|
| 755 | }
|
|---|
| 756 |
|
|---|
| 757 |
|
|---|
| 758 | /**
|
|---|
| 759 | * Prepare state load operation.
|
|---|
| 760 | *
|
|---|
| 761 | * This will dispatch pending operations and clear the FFs governed by PDM and its devices.
|
|---|
| 762 | *
|
|---|
| 763 | * @returns VBox status code.
|
|---|
| 764 | * @param pVM The VM handle.
|
|---|
| 765 | * @param pSSM The SSM handle.
|
|---|
| 766 | */
|
|---|
| 767 | static DECLCALLBACK(int) pdmR3LoadPrep(PVM pVM, PSSMHANDLE pSSM)
|
|---|
| 768 | {
|
|---|
| 769 | LogFlow(("pdmR3LoadPrep: %s%s\n",
|
|---|
| 770 | VM_FF_ISSET(pVM, VM_FF_PDM_QUEUES) ? " VM_FF_PDM_QUEUES" : "",
|
|---|
| 771 | VM_FF_ISSET(pVM, VM_FF_PDM_DMA) ? " VM_FF_PDM_DMA" : ""));
|
|---|
| 772 | #ifdef LOG_ENABLED
|
|---|
| 773 | for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
|
|---|
| 774 | {
|
|---|
| 775 | PVMCPU pVCpu = &pVM->aCpus[idCpu];
|
|---|
| 776 | LogFlow(("pdmR3LoadPrep: VCPU %u %s%s\n", idCpu,
|
|---|
| 777 | VMCPU_FF_ISSET(pVCpu, VMCPU_FF_INTERRUPT_APIC) ? " VMCPU_FF_INTERRUPT_APIC" : "",
|
|---|
| 778 | VMCPU_FF_ISSET(pVCpu, VMCPU_FF_INTERRUPT_PIC) ? " VMCPU_FF_INTERRUPT_PIC" : ""));
|
|---|
| 779 | }
|
|---|
| 780 | #endif
|
|---|
| 781 |
|
|---|
| 782 | /*
|
|---|
| 783 | * In case there is work pending that will raise an interrupt,
|
|---|
| 784 | * start a DMA transfer, or release a lock. (unlikely)
|
|---|
| 785 | */
|
|---|
| 786 | if (VM_FF_ISSET(pVM, VM_FF_PDM_QUEUES))
|
|---|
| 787 | PDMR3QueueFlushAll(pVM);
|
|---|
| 788 |
|
|---|
| 789 | /* Clear the FFs. */
|
|---|
| 790 | for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
|
|---|
| 791 | {
|
|---|
| 792 | PVMCPU pVCpu = &pVM->aCpus[idCpu];
|
|---|
| 793 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_INTERRUPT_APIC);
|
|---|
| 794 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_INTERRUPT_PIC);
|
|---|
| 795 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_INTERRUPT_NMI);
|
|---|
| 796 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_INTERRUPT_SMI);
|
|---|
| 797 | }
|
|---|
| 798 | VM_FF_CLEAR(pVM, VM_FF_PDM_DMA);
|
|---|
| 799 |
|
|---|
| 800 | return VINF_SUCCESS;
|
|---|
| 801 | }
|
|---|
| 802 |
|
|---|
| 803 |
|
|---|
| 804 | /**
|
|---|
| 805 | * Execute state load operation.
|
|---|
| 806 | *
|
|---|
| 807 | * @returns VBox status code.
|
|---|
| 808 | * @param pVM VM Handle.
|
|---|
| 809 | * @param pSSM SSM operation handle.
|
|---|
| 810 | * @param uVersion Data layout version.
|
|---|
| 811 | * @param uPass The data pass.
|
|---|
| 812 | */
|
|---|
| 813 | static DECLCALLBACK(int) pdmR3LoadExec(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
|
|---|
| 814 | {
|
|---|
| 815 | int rc;
|
|---|
| 816 |
|
|---|
| 817 | LogFlow(("pdmR3LoadExec: uPass=%#x\n", uPass));
|
|---|
| 818 |
|
|---|
| 819 | /*
|
|---|
| 820 | * Validate version.
|
|---|
| 821 | */
|
|---|
| 822 | if ( uVersion != PDM_SAVED_STATE_VERSION
|
|---|
| 823 | && uVersion != PDM_SAVED_STATE_VERSION_PRE_NMI_FF)
|
|---|
| 824 | {
|
|---|
| 825 | AssertMsgFailed(("Invalid version uVersion=%d!\n", uVersion));
|
|---|
| 826 | return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
|
|---|
| 827 | }
|
|---|
| 828 |
|
|---|
| 829 | if (uPass == SSM_PASS_FINAL)
|
|---|
| 830 | {
|
|---|
| 831 | /*
|
|---|
| 832 | * Load the interrupt and DMA states.
|
|---|
| 833 | */
|
|---|
| 834 | for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
|
|---|
| 835 | {
|
|---|
| 836 | PVMCPU pVCpu = &pVM->aCpus[idCpu];
|
|---|
| 837 |
|
|---|
| 838 | /* APIC interrupt */
|
|---|
| 839 | uint32_t fInterruptPending = 0;
|
|---|
| 840 | rc = SSMR3GetU32(pSSM, &fInterruptPending);
|
|---|
| 841 | if (RT_FAILURE(rc))
|
|---|
| 842 | return rc;
|
|---|
| 843 | if (fInterruptPending & ~1)
|
|---|
| 844 | {
|
|---|
| 845 | AssertMsgFailed(("fInterruptPending=%#x (APIC)\n", fInterruptPending));
|
|---|
| 846 | return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
|
|---|
| 847 | }
|
|---|
| 848 | AssertRelease(!VMCPU_FF_ISSET(pVCpu, VMCPU_FF_INTERRUPT_APIC));
|
|---|
| 849 | if (fInterruptPending)
|
|---|
| 850 | VMCPU_FF_SET(pVCpu, VMCPU_FF_INTERRUPT_APIC);
|
|---|
| 851 |
|
|---|
| 852 | /* PIC interrupt */
|
|---|
| 853 | fInterruptPending = 0;
|
|---|
| 854 | rc = SSMR3GetU32(pSSM, &fInterruptPending);
|
|---|
| 855 | if (RT_FAILURE(rc))
|
|---|
| 856 | return rc;
|
|---|
| 857 | if (fInterruptPending & ~1)
|
|---|
| 858 | {
|
|---|
| 859 | AssertMsgFailed(("fInterruptPending=%#x (PIC)\n", fInterruptPending));
|
|---|
| 860 | return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
|
|---|
| 861 | }
|
|---|
| 862 | AssertRelease(!VMCPU_FF_ISSET(pVCpu, VMCPU_FF_INTERRUPT_PIC));
|
|---|
| 863 | if (fInterruptPending)
|
|---|
| 864 | VMCPU_FF_SET(pVCpu, VMCPU_FF_INTERRUPT_PIC);
|
|---|
| 865 |
|
|---|
| 866 | if (uVersion > PDM_SAVED_STATE_VERSION_PRE_NMI_FF)
|
|---|
| 867 | {
|
|---|
| 868 | /* NMI interrupt */
|
|---|
| 869 | fInterruptPending = 0;
|
|---|
| 870 | rc = SSMR3GetU32(pSSM, &fInterruptPending);
|
|---|
| 871 | if (RT_FAILURE(rc))
|
|---|
| 872 | return rc;
|
|---|
| 873 | if (fInterruptPending & ~1)
|
|---|
| 874 | {
|
|---|
| 875 | AssertMsgFailed(("fInterruptPending=%#x (NMI)\n", fInterruptPending));
|
|---|
| 876 | return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
|
|---|
| 877 | }
|
|---|
| 878 | AssertRelease(!VMCPU_FF_ISSET(pVCpu, VMCPU_FF_INTERRUPT_NMI));
|
|---|
| 879 | if (fInterruptPending)
|
|---|
| 880 | VMCPU_FF_SET(pVCpu, VMCPU_FF_INTERRUPT_NMI);
|
|---|
| 881 |
|
|---|
| 882 | /* SMI interrupt */
|
|---|
| 883 | fInterruptPending = 0;
|
|---|
| 884 | rc = SSMR3GetU32(pSSM, &fInterruptPending);
|
|---|
| 885 | if (RT_FAILURE(rc))
|
|---|
| 886 | return rc;
|
|---|
| 887 | if (fInterruptPending & ~1)
|
|---|
| 888 | {
|
|---|
| 889 | AssertMsgFailed(("fInterruptPending=%#x (SMI)\n", fInterruptPending));
|
|---|
| 890 | return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
|
|---|
| 891 | }
|
|---|
| 892 | AssertRelease(!VMCPU_FF_ISSET(pVCpu, VMCPU_FF_INTERRUPT_SMI));
|
|---|
| 893 | if (fInterruptPending)
|
|---|
| 894 | VMCPU_FF_SET(pVCpu, VMCPU_FF_INTERRUPT_SMI);
|
|---|
| 895 | }
|
|---|
| 896 | }
|
|---|
| 897 |
|
|---|
| 898 | /* DMA pending */
|
|---|
| 899 | uint32_t fDMAPending = 0;
|
|---|
| 900 | rc = SSMR3GetU32(pSSM, &fDMAPending);
|
|---|
| 901 | if (RT_FAILURE(rc))
|
|---|
| 902 | return rc;
|
|---|
| 903 | if (fDMAPending & ~1)
|
|---|
| 904 | {
|
|---|
| 905 | AssertMsgFailed(("fDMAPending=%#x\n", fDMAPending));
|
|---|
| 906 | return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
|
|---|
| 907 | }
|
|---|
| 908 | if (fDMAPending)
|
|---|
| 909 | VM_FF_SET(pVM, VM_FF_PDM_DMA);
|
|---|
| 910 | Log(("pdmR3LoadExec: VM_FF_PDM_DMA=%RTbool\n", VM_FF_ISSET(pVM, VM_FF_PDM_DMA)));
|
|---|
| 911 | }
|
|---|
| 912 |
|
|---|
| 913 | /*
|
|---|
| 914 | * Load the list of devices and verify that they are all there.
|
|---|
| 915 | */
|
|---|
| 916 | for (PPDMDEVINS pDevIns = pVM->pdm.s.pDevInstances; pDevIns; pDevIns = pDevIns->Internal.s.pNextR3)
|
|---|
| 917 | pDevIns->Internal.s.fIntFlags &= ~PDMDEVINSINT_FLAGS_FOUND;
|
|---|
| 918 |
|
|---|
| 919 | for (uint32_t i = 0; ; i++)
|
|---|
| 920 | {
|
|---|
| 921 | /* Get the sequence number / terminator. */
|
|---|
| 922 | uint32_t u32Sep;
|
|---|
| 923 | rc = SSMR3GetU32(pSSM, &u32Sep);
|
|---|
| 924 | if (RT_FAILURE(rc))
|
|---|
| 925 | return rc;
|
|---|
| 926 | if (u32Sep == UINT32_MAX)
|
|---|
| 927 | break;
|
|---|
| 928 | if (u32Sep != i)
|
|---|
| 929 | AssertMsgFailedReturn(("Out of sequence. u32Sep=%#x i=%#x\n", u32Sep, i), VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
|
|---|
| 930 |
|
|---|
| 931 | /* Get the name and instance number. */
|
|---|
| 932 | char szName[RT_SIZEOFMEMB(PDMDEVREG, szName)];
|
|---|
| 933 | rc = SSMR3GetStrZ(pSSM, szName, sizeof(szName));
|
|---|
| 934 | if (RT_FAILURE(rc))
|
|---|
| 935 | return rc;
|
|---|
| 936 | uint32_t iInstance;
|
|---|
| 937 | rc = SSMR3GetU32(pSSM, &iInstance);
|
|---|
| 938 | if (RT_FAILURE(rc))
|
|---|
| 939 | return rc;
|
|---|
| 940 |
|
|---|
| 941 | /* Try locate it. */
|
|---|
| 942 | PPDMDEVINS pDevIns;
|
|---|
| 943 | for (pDevIns = pVM->pdm.s.pDevInstances; pDevIns; pDevIns = pDevIns->Internal.s.pNextR3)
|
|---|
| 944 | if ( !strcmp(szName, pDevIns->pReg->szName)
|
|---|
| 945 | && pDevIns->iInstance == iInstance)
|
|---|
| 946 | {
|
|---|
| 947 | AssertLogRelMsgReturn(!(pDevIns->Internal.s.fIntFlags & PDMDEVINSINT_FLAGS_FOUND),
|
|---|
| 948 | ("%s/#%u\n", pDevIns->pReg->szName, pDevIns->iInstance),
|
|---|
| 949 | VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
|
|---|
| 950 | pDevIns->Internal.s.fIntFlags |= PDMDEVINSINT_FLAGS_FOUND;
|
|---|
| 951 | break;
|
|---|
| 952 | }
|
|---|
| 953 | if (!pDevIns)
|
|---|
| 954 | {
|
|---|
| 955 | LogRel(("Device '%s'/%d not found in current config\n", szName, iInstance));
|
|---|
| 956 | if (SSMR3HandleGetAfter(pSSM) != SSMAFTER_DEBUG_IT)
|
|---|
| 957 | return SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("Device '%s'/%d not found in current config"), szName, iInstance);
|
|---|
| 958 | }
|
|---|
| 959 | }
|
|---|
| 960 |
|
|---|
| 961 | /*
|
|---|
| 962 | * Check that no additional devices were configured.
|
|---|
| 963 | */
|
|---|
| 964 | for (PPDMDEVINS pDevIns = pVM->pdm.s.pDevInstances; pDevIns; pDevIns = pDevIns->Internal.s.pNextR3)
|
|---|
| 965 | if (!(pDevIns->Internal.s.fIntFlags & PDMDEVINSINT_FLAGS_FOUND))
|
|---|
| 966 | {
|
|---|
| 967 | LogRel(("Device '%s'/%d not found in the saved state\n", pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 968 | if (SSMR3HandleGetAfter(pSSM) != SSMAFTER_DEBUG_IT)
|
|---|
| 969 | return SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("Device '%s'/%d not found in the saved state"),
|
|---|
| 970 | pDevIns->pReg->szName, pDevIns->iInstance);
|
|---|
| 971 | }
|
|---|
| 972 |
|
|---|
| 973 | return VINF_SUCCESS;
|
|---|
| 974 | }
|
|---|
| 975 |
|
|---|
| 976 |
|
|---|
| 977 | /**
|
|---|
| 978 | * Worker for PDMR3PowerOn that deals with one driver.
|
|---|
| 979 | *
|
|---|
| 980 | * @param pDrvIns The driver instance.
|
|---|
| 981 | * @param pszDevName The parent device name.
|
|---|
| 982 | * @param iDevInstance The parent device instance number.
|
|---|
| 983 | * @param iLun The parent LUN number.
|
|---|
| 984 | */
|
|---|
| 985 | DECLINLINE(int) pdmR3PowerOnDrv(PPDMDRVINS pDrvIns, const char *pszDevName, uint32_t iDevInstance, uint32_t iLun)
|
|---|
| 986 | {
|
|---|
| 987 | Assert(pDrvIns->Internal.s.fVMSuspended);
|
|---|
| 988 | if (pDrvIns->pReg->pfnPowerOn)
|
|---|
| 989 | {
|
|---|
| 990 | LogFlow(("PDMR3PowerOn: Notifying - driver '%s'/%d on LUN#%d of device '%s'/%d\n",
|
|---|
| 991 | pDrvIns->pReg->szName, pDrvIns->iInstance, iLun, pszDevName, iDevInstance));
|
|---|
| 992 | int rc = VINF_SUCCESS; pDrvIns->pReg->pfnPowerOn(pDrvIns);
|
|---|
| 993 | if (RT_FAILURE(rc))
|
|---|
| 994 | {
|
|---|
| 995 | LogRel(("PDMR3PowerOn: driver '%s'/%d on LUN#%d of device '%s'/%d -> %Rrc\n",
|
|---|
| 996 | pDrvIns->pReg->szName, pDrvIns->iInstance, iLun, pszDevName, iDevInstance, rc));
|
|---|
| 997 | return rc;
|
|---|
| 998 | }
|
|---|
| 999 | }
|
|---|
| 1000 | pDrvIns->Internal.s.fVMSuspended = false;
|
|---|
| 1001 | return VINF_SUCCESS;
|
|---|
| 1002 | }
|
|---|
| 1003 |
|
|---|
| 1004 |
|
|---|
| 1005 | /**
|
|---|
| 1006 | * Worker for PDMR3PowerOn that deals with one USB device instance.
|
|---|
| 1007 | *
|
|---|
| 1008 | * @returns VBox status code.
|
|---|
| 1009 | * @param pUsbIns The USB device instance.
|
|---|
| 1010 | */
|
|---|
| 1011 | DECLINLINE(int) pdmR3PowerOnUsb(PPDMUSBINS pUsbIns)
|
|---|
| 1012 | {
|
|---|
| 1013 | Assert(pUsbIns->Internal.s.fVMSuspended);
|
|---|
| 1014 | if (pUsbIns->pReg->pfnVMPowerOn)
|
|---|
| 1015 | {
|
|---|
| 1016 | LogFlow(("PDMR3PowerOn: Notifying - device '%s'/%d\n", pUsbIns->pReg->szName, pUsbIns->iInstance));
|
|---|
| 1017 | int rc = VINF_SUCCESS; pUsbIns->pReg->pfnVMPowerOn(pUsbIns);
|
|---|
| 1018 | if (RT_FAILURE(rc))
|
|---|
| 1019 | {
|
|---|
| 1020 | LogRel(("PDMR3PowerOn: device '%s'/%d -> %Rrc\n", pUsbIns->pReg->szName, pUsbIns->iInstance, rc));
|
|---|
| 1021 | return rc;
|
|---|
| 1022 | }
|
|---|
| 1023 | }
|
|---|
| 1024 | pUsbIns->Internal.s.fVMSuspended = false;
|
|---|
| 1025 | return VINF_SUCCESS;
|
|---|
| 1026 | }
|
|---|
| 1027 |
|
|---|
| 1028 |
|
|---|
| 1029 | /**
|
|---|
| 1030 | * Worker for PDMR3PowerOn that deals with one device instance.
|
|---|
| 1031 | *
|
|---|
| 1032 | * @returns VBox status code.
|
|---|
| 1033 | * @param pDevIns The device instance.
|
|---|
| 1034 | */
|
|---|
| 1035 | DECLINLINE(int) pdmR3PowerOnDev(PPDMDEVINS pDevIns)
|
|---|
| 1036 | {
|
|---|
| 1037 | Assert(pDevIns->Internal.s.fIntFlags & PDMDEVINSINT_FLAGS_SUSPENDED);
|
|---|
| 1038 | if (pDevIns->pReg->pfnPowerOn)
|
|---|
| 1039 | {
|
|---|
| 1040 | LogFlow(("PDMR3PowerOn: Notifying - device '%s'/%d\n", pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 1041 | int rc = VINF_SUCCESS; pDevIns->pReg->pfnPowerOn(pDevIns);
|
|---|
| 1042 | if (RT_FAILURE(rc))
|
|---|
| 1043 | {
|
|---|
| 1044 | LogRel(("PDMR3PowerOn: device '%s'/%d -> %Rrc\n", pDevIns->pReg->szName, pDevIns->iInstance, rc));
|
|---|
| 1045 | return rc;
|
|---|
| 1046 | }
|
|---|
| 1047 | }
|
|---|
| 1048 | pDevIns->Internal.s.fIntFlags &= ~PDMDEVINSINT_FLAGS_SUSPENDED;
|
|---|
| 1049 | return VINF_SUCCESS;
|
|---|
| 1050 | }
|
|---|
| 1051 |
|
|---|
| 1052 |
|
|---|
| 1053 | /**
|
|---|
| 1054 | * This function will notify all the devices and their
|
|---|
| 1055 | * attached drivers about the VM now being powered on.
|
|---|
| 1056 | *
|
|---|
| 1057 | * @param pVM VM Handle.
|
|---|
| 1058 | */
|
|---|
| 1059 | VMMR3DECL(void) PDMR3PowerOn(PVM pVM)
|
|---|
| 1060 | {
|
|---|
| 1061 | LogFlow(("PDMR3PowerOn:\n"));
|
|---|
| 1062 |
|
|---|
| 1063 | /*
|
|---|
| 1064 | * Iterate thru the device instances and USB device instances,
|
|---|
| 1065 | * processing the drivers associated with those.
|
|---|
| 1066 | */
|
|---|
| 1067 | int rc = VINF_SUCCESS;
|
|---|
| 1068 | for (PPDMDEVINS pDevIns = pVM->pdm.s.pDevInstances; pDevIns && RT_SUCCESS(rc); pDevIns = pDevIns->Internal.s.pNextR3)
|
|---|
| 1069 | {
|
|---|
| 1070 | for (PPDMLUN pLun = pDevIns->Internal.s.pLunsR3; pLun && RT_SUCCESS(rc); pLun = pLun->pNext)
|
|---|
| 1071 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns && RT_SUCCESS(rc); pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 1072 | rc = pdmR3PowerOnDrv(pDrvIns, pDevIns->pReg->szName, pDevIns->iInstance, pLun->iLun);
|
|---|
| 1073 | if (RT_SUCCESS(rc))
|
|---|
| 1074 | rc = pdmR3PowerOnDev(pDevIns);
|
|---|
| 1075 | }
|
|---|
| 1076 |
|
|---|
| 1077 | #ifdef VBOX_WITH_USB
|
|---|
| 1078 | for (PPDMUSBINS pUsbIns = pVM->pdm.s.pUsbInstances; pUsbIns && RT_SUCCESS(rc); pUsbIns = pUsbIns->Internal.s.pNext)
|
|---|
| 1079 | {
|
|---|
| 1080 | for (PPDMLUN pLun = pUsbIns->Internal.s.pLuns; pLun && RT_SUCCESS(rc); pLun = pLun->pNext)
|
|---|
| 1081 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns && RT_SUCCESS(rc); pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 1082 | rc = pdmR3PowerOnDrv(pDrvIns, pUsbIns->pReg->szName, pUsbIns->iInstance, pLun->iLun);
|
|---|
| 1083 | if (RT_SUCCESS(rc))
|
|---|
| 1084 | rc = pdmR3PowerOnUsb(pUsbIns);
|
|---|
| 1085 | }
|
|---|
| 1086 | #endif
|
|---|
| 1087 |
|
|---|
| 1088 | #ifdef VBOX_WITH_PDM_ASYNC_COMPLETION
|
|---|
| 1089 | pdmR3AsyncCompletionResume(pVM);
|
|---|
| 1090 | #endif
|
|---|
| 1091 |
|
|---|
| 1092 | /*
|
|---|
| 1093 | * Resume all threads.
|
|---|
| 1094 | */
|
|---|
| 1095 | if (RT_SUCCESS(rc))
|
|---|
| 1096 | pdmR3ThreadResumeAll(pVM);
|
|---|
| 1097 |
|
|---|
| 1098 | /*
|
|---|
| 1099 | * On failure, clean up via PDMR3Suspend.
|
|---|
| 1100 | */
|
|---|
| 1101 | if (RT_FAILURE(rc))
|
|---|
| 1102 | PDMR3Suspend(pVM);
|
|---|
| 1103 |
|
|---|
| 1104 | LogFlow(("PDMR3PowerOn: returns %Rrc\n", rc));
|
|---|
| 1105 | return /*rc*/;
|
|---|
| 1106 | }
|
|---|
| 1107 |
|
|---|
| 1108 |
|
|---|
| 1109 | /**
|
|---|
| 1110 | * Initializes the asynchronous notifi stats structure.
|
|---|
| 1111 | *
|
|---|
| 1112 | * @param pThis The asynchronous notifification stats.
|
|---|
| 1113 | * @param pszOp The name of the operation.
|
|---|
| 1114 | */
|
|---|
| 1115 | static void pdmR3NotifyAsyncInit(PPDMNOTIFYASYNCSTATS pThis, const char *pszOp)
|
|---|
| 1116 | {
|
|---|
| 1117 | pThis->uStartNsTs = RTTimeNanoTS();
|
|---|
| 1118 | pThis->cNsElapsedNextLog = 0;
|
|---|
| 1119 | pThis->cLoops = 0;
|
|---|
| 1120 | pThis->cAsync = 0;
|
|---|
| 1121 | pThis->pszOp = pszOp;
|
|---|
| 1122 | pThis->offList = 0;
|
|---|
| 1123 | pThis->szList[0] = '\0';
|
|---|
| 1124 | }
|
|---|
| 1125 |
|
|---|
| 1126 |
|
|---|
| 1127 | /**
|
|---|
| 1128 | * Begin a new loop, prepares to gather new stats.
|
|---|
| 1129 | *
|
|---|
| 1130 | * @param pThis The asynchronous notifification stats.
|
|---|
| 1131 | */
|
|---|
| 1132 | static void pdmR3NotifyAsyncBeginLoop(PPDMNOTIFYASYNCSTATS pThis)
|
|---|
| 1133 | {
|
|---|
| 1134 | pThis->cLoops++;
|
|---|
| 1135 | pThis->cAsync = 0;
|
|---|
| 1136 | pThis->offList = 0;
|
|---|
| 1137 | pThis->szList[0] = '\0';
|
|---|
| 1138 | }
|
|---|
| 1139 |
|
|---|
| 1140 |
|
|---|
| 1141 | /**
|
|---|
| 1142 | * Records a device or USB device with a pending asynchronous notification.
|
|---|
| 1143 | *
|
|---|
| 1144 | * @param pThis The asynchronous notifification stats.
|
|---|
| 1145 | * @param pszName The name of the thing.
|
|---|
| 1146 | * @param iInstance The instance number.
|
|---|
| 1147 | */
|
|---|
| 1148 | static void pdmR3NotifyAsyncAdd(PPDMNOTIFYASYNCSTATS pThis, const char *pszName, uint32_t iInstance)
|
|---|
| 1149 | {
|
|---|
| 1150 | pThis->cAsync++;
|
|---|
| 1151 | if (pThis->offList < sizeof(pThis->szList) - 4)
|
|---|
| 1152 | pThis->offList += RTStrPrintf(&pThis->szList[pThis->offList], sizeof(pThis->szList) - pThis->offList,
|
|---|
| 1153 | pThis->offList == 0 ? "%s/%u" : ", %s/%u",
|
|---|
| 1154 | pszName, iInstance);
|
|---|
| 1155 | }
|
|---|
| 1156 |
|
|---|
| 1157 |
|
|---|
| 1158 | /**
|
|---|
| 1159 | * Records the asynchronous completition of a reset, suspend or power off.
|
|---|
| 1160 | *
|
|---|
| 1161 | * @param pThis The asynchronous notifification stats.
|
|---|
| 1162 | * @param pszDrvName The driver name.
|
|---|
| 1163 | * @param iDrvInstance The driver instance number.
|
|---|
| 1164 | * @param pszDevName The device or USB device name.
|
|---|
| 1165 | * @param iDevInstance The device or USB device instance number.
|
|---|
| 1166 | * @param iLun The LUN.
|
|---|
| 1167 | */
|
|---|
| 1168 | static void pdmR3NotifyAsyncAddDrv(PPDMNOTIFYASYNCSTATS pThis, const char *pszDrvName, uint32_t iDrvInstance,
|
|---|
| 1169 | const char *pszDevName, uint32_t iDevInstance, uint32_t iLun)
|
|---|
| 1170 | {
|
|---|
| 1171 | pThis->cAsync++;
|
|---|
| 1172 | if (pThis->offList < sizeof(pThis->szList) - 8)
|
|---|
| 1173 | pThis->offList += RTStrPrintf(&pThis->szList[pThis->offList], sizeof(pThis->szList) - pThis->offList,
|
|---|
| 1174 | pThis->offList == 0 ? "%s/%u/%u/%s/%u" : ", %s/%u/%u/%s/%u",
|
|---|
| 1175 | pszDevName, iDevInstance, iLun, pszDrvName, iDrvInstance);
|
|---|
| 1176 | }
|
|---|
| 1177 |
|
|---|
| 1178 |
|
|---|
| 1179 | /**
|
|---|
| 1180 | * Log the stats.
|
|---|
| 1181 | *
|
|---|
| 1182 | * @param pThis The asynchronous notifification stats.
|
|---|
| 1183 | */
|
|---|
| 1184 | static void pdmR3NotifyAsyncLog(PPDMNOTIFYASYNCSTATS pThis)
|
|---|
| 1185 | {
|
|---|
| 1186 | /*
|
|---|
| 1187 | * Return if we shouldn't log at this point.
|
|---|
| 1188 | * We log with an internval increasing from 0 sec to 60 sec.
|
|---|
| 1189 | */
|
|---|
| 1190 | if (!pThis->cAsync)
|
|---|
| 1191 | return;
|
|---|
| 1192 |
|
|---|
| 1193 | uint64_t cNsElapsed = RTTimeNanoTS() - pThis->uStartNsTs;
|
|---|
| 1194 | if (cNsElapsed < pThis->cNsElapsedNextLog)
|
|---|
| 1195 | return;
|
|---|
| 1196 |
|
|---|
| 1197 | if (pThis->cNsElapsedNextLog == 0)
|
|---|
| 1198 | pThis->cNsElapsedNextLog = RT_NS_1SEC;
|
|---|
| 1199 | else if (pThis->cNsElapsedNextLog >= RT_NS_1MIN / 2)
|
|---|
| 1200 | pThis->cNsElapsedNextLog = RT_NS_1MIN;
|
|---|
| 1201 | else
|
|---|
| 1202 | pThis->cNsElapsedNextLog *= 2;
|
|---|
| 1203 |
|
|---|
| 1204 | /*
|
|---|
| 1205 | * Do the logging.
|
|---|
| 1206 | */
|
|---|
| 1207 | LogRel(("%s: after %5llu ms, %u loops: %u async tasks - %s\n",
|
|---|
| 1208 | pThis->pszOp, cNsElapsed / RT_NS_1MS, pThis->cLoops, pThis->cAsync, pThis->szList));
|
|---|
| 1209 | }
|
|---|
| 1210 |
|
|---|
| 1211 |
|
|---|
| 1212 | /**
|
|---|
| 1213 | * Wait for events and process pending requests.
|
|---|
| 1214 | *
|
|---|
| 1215 | * @param pThis The asynchronous notifification stats.
|
|---|
| 1216 | * @param pVM The VM handle.
|
|---|
| 1217 | */
|
|---|
| 1218 | static void pdmR3NotifyAsyncWaitAndProcessRequests(PPDMNOTIFYASYNCSTATS pThis, PVM pVM)
|
|---|
| 1219 | {
|
|---|
| 1220 | /** @todo This is utterly nuts and completely unsafe... will get back to it in a
|
|---|
| 1221 | * bit I hope... */
|
|---|
| 1222 | VM_ASSERT_EMT0(pVM);
|
|---|
| 1223 | int rc = VMR3AsyncPdmNotificationWaitU(&pVM->pUVM->aCpus[0]);
|
|---|
| 1224 | AssertReleaseMsg(rc == VINF_SUCCESS, ("%Rrc - %s - %s\n", rc, pThis->pszOp, pThis->szList));
|
|---|
| 1225 |
|
|---|
| 1226 | rc = VMR3ReqProcessU(pVM->pUVM, VMCPUID_ANY);
|
|---|
| 1227 | AssertReleaseMsg(rc == VINF_SUCCESS, ("%Rrc - %s - %s\n", rc, pThis->pszOp, pThis->szList));
|
|---|
| 1228 | rc = VMR3ReqProcessU(pVM->pUVM, 0/*idDstCpu*/);
|
|---|
| 1229 | AssertReleaseMsg(rc == VINF_SUCCESS, ("%Rrc - %s - %s\n", rc, pThis->pszOp, pThis->szList));
|
|---|
| 1230 | }
|
|---|
| 1231 |
|
|---|
| 1232 |
|
|---|
| 1233 | /**
|
|---|
| 1234 | * Worker for PDMR3Reset that deals with one driver.
|
|---|
| 1235 | *
|
|---|
| 1236 | * @param pDrvIns The driver instance.
|
|---|
| 1237 | * @param pAsync The structure for recording asynchronous
|
|---|
| 1238 | * notification tasks.
|
|---|
| 1239 | * @param pszDevName The parent device name.
|
|---|
| 1240 | * @param iDevInstance The parent device instance number.
|
|---|
| 1241 | * @param iLun The parent LUN number.
|
|---|
| 1242 | */
|
|---|
| 1243 | DECLINLINE(bool) pdmR3ResetDrv(PPDMDRVINS pDrvIns, PPDMNOTIFYASYNCSTATS pAsync,
|
|---|
| 1244 | const char *pszDevName, uint32_t iDevInstance, uint32_t iLun)
|
|---|
| 1245 | {
|
|---|
| 1246 | if (!pDrvIns->Internal.s.fVMReset)
|
|---|
| 1247 | {
|
|---|
| 1248 | pDrvIns->Internal.s.fVMReset = true;
|
|---|
| 1249 | if (pDrvIns->pReg->pfnReset)
|
|---|
| 1250 | {
|
|---|
| 1251 | if (!pDrvIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1252 | {
|
|---|
| 1253 | LogFlow(("PDMR3Reset: Notifying - driver '%s'/%d on LUN#%d of device '%s'/%d\n",
|
|---|
| 1254 | pDrvIns->pReg->szName, pDrvIns->iInstance, iLun, pszDevName, iDevInstance));
|
|---|
| 1255 | pDrvIns->pReg->pfnReset(pDrvIns);
|
|---|
| 1256 | if (pDrvIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1257 | LogFlow(("PDMR3Reset: Async notification started - driver '%s'/%d on LUN#%d of device '%s'/%d\n",
|
|---|
| 1258 | pDrvIns->pReg->szName, pDrvIns->iInstance, iLun, pszDevName, iDevInstance));
|
|---|
| 1259 | }
|
|---|
| 1260 | else if (pDrvIns->Internal.s.pfnAsyncNotify(pDrvIns))
|
|---|
| 1261 | {
|
|---|
| 1262 | pDrvIns->Internal.s.pfnAsyncNotify = false;
|
|---|
| 1263 | LogFlow(("PDMR3Reset: Async notification completed - driver '%s'/%d on LUN#%d of device '%s'/%d\n",
|
|---|
| 1264 | pDrvIns->pReg->szName, pDrvIns->iInstance, iLun, pszDevName, iDevInstance));
|
|---|
| 1265 | }
|
|---|
| 1266 | if (pDrvIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1267 | {
|
|---|
| 1268 | pDrvIns->Internal.s.fVMReset = false;
|
|---|
| 1269 | pdmR3NotifyAsyncAddDrv(pAsync, pDrvIns->Internal.s.pDrv->pReg->szName, pDrvIns->iInstance,
|
|---|
| 1270 | pszDevName, iDevInstance, iLun);
|
|---|
| 1271 | return false;
|
|---|
| 1272 | }
|
|---|
| 1273 | }
|
|---|
| 1274 | }
|
|---|
| 1275 | return true;
|
|---|
| 1276 | }
|
|---|
| 1277 |
|
|---|
| 1278 |
|
|---|
| 1279 | /**
|
|---|
| 1280 | * Worker for PDMR3Reset that deals with one USB device instance.
|
|---|
| 1281 | *
|
|---|
| 1282 | * @param pUsbIns The USB device instance.
|
|---|
| 1283 | * @param pAsync The structure for recording asynchronous
|
|---|
| 1284 | * notification tasks.
|
|---|
| 1285 | */
|
|---|
| 1286 | DECLINLINE(void) pdmR3ResetUsb(PPDMUSBINS pUsbIns, PPDMNOTIFYASYNCSTATS pAsync)
|
|---|
| 1287 | {
|
|---|
| 1288 | if (!pUsbIns->Internal.s.fVMReset)
|
|---|
| 1289 | {
|
|---|
| 1290 | pUsbIns->Internal.s.fVMReset = true;
|
|---|
| 1291 | if (pUsbIns->pReg->pfnVMReset)
|
|---|
| 1292 | {
|
|---|
| 1293 | if (!pUsbIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1294 | {
|
|---|
| 1295 | LogFlow(("PDMR3Reset: Notifying - device '%s'/%d\n", pUsbIns->pReg->szName, pUsbIns->iInstance));
|
|---|
| 1296 | pUsbIns->pReg->pfnVMReset(pUsbIns);
|
|---|
| 1297 | if (pUsbIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1298 | LogFlow(("PDMR3Reset: Async notification started - device '%s'/%d\n", pUsbIns->pReg->szName, pUsbIns->iInstance));
|
|---|
| 1299 | }
|
|---|
| 1300 | else if (pUsbIns->Internal.s.pfnAsyncNotify(pUsbIns))
|
|---|
| 1301 | {
|
|---|
| 1302 | LogFlow(("PDMR3Reset: Async notification completed - device '%s'/%d\n", pUsbIns->pReg->szName, pUsbIns->iInstance));
|
|---|
| 1303 | pUsbIns->Internal.s.pfnAsyncNotify = NULL;
|
|---|
| 1304 | }
|
|---|
| 1305 | if (pUsbIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1306 | {
|
|---|
| 1307 | pUsbIns->Internal.s.fVMReset = false;
|
|---|
| 1308 | pdmR3NotifyAsyncAdd(pAsync, pUsbIns->Internal.s.pUsbDev->pReg->szName, pUsbIns->iInstance);
|
|---|
| 1309 | }
|
|---|
| 1310 | }
|
|---|
| 1311 | }
|
|---|
| 1312 | }
|
|---|
| 1313 |
|
|---|
| 1314 |
|
|---|
| 1315 | /**
|
|---|
| 1316 | * Worker for PDMR3Reset that deals with one device instance.
|
|---|
| 1317 | *
|
|---|
| 1318 | * @param pDevIns The device instance.
|
|---|
| 1319 | * @param pAsync The structure for recording asynchronous
|
|---|
| 1320 | * notification tasks.
|
|---|
| 1321 | */
|
|---|
| 1322 | DECLINLINE(void) pdmR3ResetDev(PPDMDEVINS pDevIns, PPDMNOTIFYASYNCSTATS pAsync)
|
|---|
| 1323 | {
|
|---|
| 1324 | if (!(pDevIns->Internal.s.fIntFlags & PDMDEVINSINT_FLAGS_RESET))
|
|---|
| 1325 | {
|
|---|
| 1326 | pDevIns->Internal.s.fIntFlags |= PDMDEVINSINT_FLAGS_RESET;
|
|---|
| 1327 | if (pDevIns->pReg->pfnReset)
|
|---|
| 1328 | {
|
|---|
| 1329 | if (!pDevIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1330 | {
|
|---|
| 1331 | LogFlow(("PDMR3Reset: Notifying - device '%s'/%d\n", pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 1332 | pDevIns->pReg->pfnReset(pDevIns);
|
|---|
| 1333 | if (pDevIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1334 | LogFlow(("PDMR3Reset: Async notification started - device '%s'/%d\n", pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 1335 | }
|
|---|
| 1336 | else if (pDevIns->Internal.s.pfnAsyncNotify(pDevIns))
|
|---|
| 1337 | {
|
|---|
| 1338 | LogFlow(("PDMR3Reset: Async notification completed - device '%s'/%d\n", pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 1339 | pDevIns->Internal.s.pfnAsyncNotify = NULL;
|
|---|
| 1340 | }
|
|---|
| 1341 | if (pDevIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1342 | {
|
|---|
| 1343 | pDevIns->Internal.s.fIntFlags &= ~PDMDEVINSINT_FLAGS_RESET;
|
|---|
| 1344 | pdmR3NotifyAsyncAdd(pAsync, pDevIns->Internal.s.pDevR3->pReg->szName, pDevIns->iInstance);
|
|---|
| 1345 | }
|
|---|
| 1346 | }
|
|---|
| 1347 | }
|
|---|
| 1348 | }
|
|---|
| 1349 |
|
|---|
| 1350 |
|
|---|
| 1351 | /**
|
|---|
| 1352 | * Resets a virtual CPU.
|
|---|
| 1353 | *
|
|---|
| 1354 | * Used by PDMR3Reset and CPU hot plugging.
|
|---|
| 1355 | *
|
|---|
| 1356 | * @param pVCpu The virtual CPU handle.
|
|---|
| 1357 | */
|
|---|
| 1358 | VMMR3DECL(void) PDMR3ResetCpu(PVMCPU pVCpu)
|
|---|
| 1359 | {
|
|---|
| 1360 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_INTERRUPT_APIC);
|
|---|
| 1361 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_INTERRUPT_PIC);
|
|---|
| 1362 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_INTERRUPT_NMI);
|
|---|
| 1363 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_INTERRUPT_SMI);
|
|---|
| 1364 | }
|
|---|
| 1365 |
|
|---|
| 1366 |
|
|---|
| 1367 | /**
|
|---|
| 1368 | * This function will notify all the devices and their attached drivers about
|
|---|
| 1369 | * the VM now being reset.
|
|---|
| 1370 | *
|
|---|
| 1371 | * @param pVM VM Handle.
|
|---|
| 1372 | */
|
|---|
| 1373 | VMMR3DECL(void) PDMR3Reset(PVM pVM)
|
|---|
| 1374 | {
|
|---|
| 1375 | LogFlow(("PDMR3Reset:\n"));
|
|---|
| 1376 |
|
|---|
| 1377 | /*
|
|---|
| 1378 | * Clear all the reset flags.
|
|---|
| 1379 | */
|
|---|
| 1380 | for (PPDMDEVINS pDevIns = pVM->pdm.s.pDevInstances; pDevIns; pDevIns = pDevIns->Internal.s.pNextR3)
|
|---|
| 1381 | {
|
|---|
| 1382 | pDevIns->Internal.s.fIntFlags &= ~PDMDEVINSINT_FLAGS_RESET;
|
|---|
| 1383 | for (PPDMLUN pLun = pDevIns->Internal.s.pLunsR3; pLun; pLun = pLun->pNext)
|
|---|
| 1384 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns; pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 1385 | pDrvIns->Internal.s.fVMReset = false;
|
|---|
| 1386 | }
|
|---|
| 1387 | #ifdef VBOX_WITH_USB
|
|---|
| 1388 | for (PPDMUSBINS pUsbIns = pVM->pdm.s.pUsbInstances; pUsbIns; pUsbIns = pUsbIns->Internal.s.pNext)
|
|---|
| 1389 | {
|
|---|
| 1390 | pUsbIns->Internal.s.fVMReset = false;
|
|---|
| 1391 | for (PPDMLUN pLun = pUsbIns->Internal.s.pLuns; pLun; pLun = pLun->pNext)
|
|---|
| 1392 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns; pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 1393 | pDrvIns->Internal.s.fVMReset = false;
|
|---|
| 1394 | }
|
|---|
| 1395 | #endif
|
|---|
| 1396 |
|
|---|
| 1397 | /*
|
|---|
| 1398 | * The outer loop repeats until there are no more async requests.
|
|---|
| 1399 | */
|
|---|
| 1400 | PDMNOTIFYASYNCSTATS Async;
|
|---|
| 1401 | pdmR3NotifyAsyncInit(&Async, "PDMR3Reset");
|
|---|
| 1402 | for (;;)
|
|---|
| 1403 | {
|
|---|
| 1404 | pdmR3NotifyAsyncBeginLoop(&Async);
|
|---|
| 1405 |
|
|---|
| 1406 | /*
|
|---|
| 1407 | * Iterate thru the device instances and USB device instances,
|
|---|
| 1408 | * processing the drivers associated with those.
|
|---|
| 1409 | */
|
|---|
| 1410 | for (PPDMDEVINS pDevIns = pVM->pdm.s.pDevInstances; pDevIns; pDevIns = pDevIns->Internal.s.pNextR3)
|
|---|
| 1411 | {
|
|---|
| 1412 | unsigned const cAsyncStart = Async.cAsync;
|
|---|
| 1413 |
|
|---|
| 1414 | if (Async.cAsync == cAsyncStart)
|
|---|
| 1415 | for (PPDMLUN pLun = pDevIns->Internal.s.pLunsR3; pLun; pLun = pLun->pNext)
|
|---|
| 1416 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns; pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 1417 | if (!pdmR3ResetDrv(pDrvIns, &Async, pDevIns->pReg->szName, pDevIns->iInstance, pLun->iLun))
|
|---|
| 1418 | break;
|
|---|
| 1419 |
|
|---|
| 1420 | if (Async.cAsync == cAsyncStart)
|
|---|
| 1421 | pdmR3ResetDev(pDevIns, &Async);
|
|---|
| 1422 | }
|
|---|
| 1423 |
|
|---|
| 1424 | #ifdef VBOX_WITH_USB
|
|---|
| 1425 | for (PPDMUSBINS pUsbIns = pVM->pdm.s.pUsbInstances; pUsbIns; pUsbIns = pUsbIns->Internal.s.pNext)
|
|---|
| 1426 | {
|
|---|
| 1427 | unsigned const cAsyncStart = Async.cAsync;
|
|---|
| 1428 |
|
|---|
| 1429 | for (PPDMLUN pLun = pUsbIns->Internal.s.pLuns; pLun; pLun = pLun->pNext)
|
|---|
| 1430 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns; pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 1431 | if (!pdmR3ResetDrv(pDrvIns, &Async, pUsbIns->pReg->szName, pUsbIns->iInstance, pLun->iLun))
|
|---|
| 1432 | break;
|
|---|
| 1433 |
|
|---|
| 1434 | if (Async.cAsync == cAsyncStart)
|
|---|
| 1435 | pdmR3ResetUsb(pUsbIns, &Async);
|
|---|
| 1436 | }
|
|---|
| 1437 | #endif
|
|---|
| 1438 | if (!Async.cAsync)
|
|---|
| 1439 | break;
|
|---|
| 1440 | pdmR3NotifyAsyncLog(&Async);
|
|---|
| 1441 | pdmR3NotifyAsyncWaitAndProcessRequests(&Async, pVM);
|
|---|
| 1442 | }
|
|---|
| 1443 |
|
|---|
| 1444 | /*
|
|---|
| 1445 | * Clear all pending interrupts and DMA operations.
|
|---|
| 1446 | */
|
|---|
| 1447 | for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
|
|---|
| 1448 | PDMR3ResetCpu(&pVM->aCpus[idCpu]);
|
|---|
| 1449 | VM_FF_CLEAR(pVM, VM_FF_PDM_DMA);
|
|---|
| 1450 |
|
|---|
| 1451 | LogFlow(("PDMR3Reset: returns void\n"));
|
|---|
| 1452 | }
|
|---|
| 1453 |
|
|---|
| 1454 |
|
|---|
| 1455 | /**
|
|---|
| 1456 | * Worker for PDMR3Suspend that deals with one driver.
|
|---|
| 1457 | *
|
|---|
| 1458 | * @param pDrvIns The driver instance.
|
|---|
| 1459 | * @param pAsync The structure for recording asynchronous
|
|---|
| 1460 | * notification tasks.
|
|---|
| 1461 | * @param pszDevName The parent device name.
|
|---|
| 1462 | * @param iDevInstance The parent device instance number.
|
|---|
| 1463 | * @param iLun The parent LUN number.
|
|---|
| 1464 | */
|
|---|
| 1465 | DECLINLINE(bool) pdmR3SuspendDrv(PPDMDRVINS pDrvIns, PPDMNOTIFYASYNCSTATS pAsync,
|
|---|
| 1466 | const char *pszDevName, uint32_t iDevInstance, uint32_t iLun)
|
|---|
| 1467 | {
|
|---|
| 1468 | if (!pDrvIns->Internal.s.fVMSuspended)
|
|---|
| 1469 | {
|
|---|
| 1470 | pDrvIns->Internal.s.fVMSuspended = true;
|
|---|
| 1471 | if (pDrvIns->pReg->pfnSuspend)
|
|---|
| 1472 | {
|
|---|
| 1473 | if (!pDrvIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1474 | {
|
|---|
| 1475 | LogFlow(("PDMR3Suspend: Notifying - driver '%s'/%d on LUN#%d of device '%s'/%d\n",
|
|---|
| 1476 | pDrvIns->pReg->szName, pDrvIns->iInstance, iLun, pszDevName, iDevInstance));
|
|---|
| 1477 | pDrvIns->pReg->pfnSuspend(pDrvIns);
|
|---|
| 1478 | if (pDrvIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1479 | LogFlow(("PDMR3Suspend: Async notification started - driver '%s'/%d on LUN#%d of device '%s'/%d\n",
|
|---|
| 1480 | pDrvIns->pReg->szName, pDrvIns->iInstance, iLun, pszDevName, iDevInstance));
|
|---|
| 1481 | }
|
|---|
| 1482 | else if (pDrvIns->Internal.s.pfnAsyncNotify(pDrvIns))
|
|---|
| 1483 | {
|
|---|
| 1484 | pDrvIns->Internal.s.pfnAsyncNotify = NULL;
|
|---|
| 1485 | LogFlow(("PDMR3Suspend: Async notification completed - driver '%s'/%d on LUN#%d of device '%s'/%d\n",
|
|---|
| 1486 | pDrvIns->pReg->szName, pDrvIns->iInstance, iLun, pszDevName, iDevInstance));
|
|---|
| 1487 | }
|
|---|
| 1488 | if (pDrvIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1489 | {
|
|---|
| 1490 | pDrvIns->Internal.s.fVMSuspended = false;
|
|---|
| 1491 | pdmR3NotifyAsyncAddDrv(pAsync, pDrvIns->Internal.s.pDrv->pReg->szName, pDrvIns->iInstance, pszDevName, iDevInstance, iLun);
|
|---|
| 1492 | return false;
|
|---|
| 1493 | }
|
|---|
| 1494 | }
|
|---|
| 1495 | }
|
|---|
| 1496 | return true;
|
|---|
| 1497 | }
|
|---|
| 1498 |
|
|---|
| 1499 |
|
|---|
| 1500 | /**
|
|---|
| 1501 | * Worker for PDMR3Suspend that deals with one USB device instance.
|
|---|
| 1502 | *
|
|---|
| 1503 | * @param pUsbIns The USB device instance.
|
|---|
| 1504 | * @param pAsync The structure for recording asynchronous
|
|---|
| 1505 | * notification tasks.
|
|---|
| 1506 | */
|
|---|
| 1507 | DECLINLINE(void) pdmR3SuspendUsb(PPDMUSBINS pUsbIns, PPDMNOTIFYASYNCSTATS pAsync)
|
|---|
| 1508 | {
|
|---|
| 1509 | if (!pUsbIns->Internal.s.fVMSuspended)
|
|---|
| 1510 | {
|
|---|
| 1511 | pUsbIns->Internal.s.fVMSuspended = true;
|
|---|
| 1512 | if (pUsbIns->pReg->pfnVMSuspend)
|
|---|
| 1513 | {
|
|---|
| 1514 | if (!pUsbIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1515 | {
|
|---|
| 1516 | LogFlow(("PDMR3Suspend: Notifying - device '%s'/%d\n", pUsbIns->pReg->szName, pUsbIns->iInstance));
|
|---|
| 1517 | pUsbIns->pReg->pfnVMSuspend(pUsbIns);
|
|---|
| 1518 | if (pUsbIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1519 | LogFlow(("PDMR3Suspend: Async notification started - device '%s'/%d\n", pUsbIns->pReg->szName, pUsbIns->iInstance));
|
|---|
| 1520 | }
|
|---|
| 1521 | else if (pUsbIns->Internal.s.pfnAsyncNotify(pUsbIns))
|
|---|
| 1522 | {
|
|---|
| 1523 | LogFlow(("PDMR3Suspend: Async notification completed - device '%s'/%d\n", pUsbIns->pReg->szName, pUsbIns->iInstance));
|
|---|
| 1524 | pUsbIns->Internal.s.pfnAsyncNotify = NULL;
|
|---|
| 1525 | }
|
|---|
| 1526 | if (pUsbIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1527 | {
|
|---|
| 1528 | pUsbIns->Internal.s.fVMSuspended = false;
|
|---|
| 1529 | pdmR3NotifyAsyncAdd(pAsync, pUsbIns->Internal.s.pUsbDev->pReg->szName, pUsbIns->iInstance);
|
|---|
| 1530 | }
|
|---|
| 1531 | }
|
|---|
| 1532 | }
|
|---|
| 1533 | }
|
|---|
| 1534 |
|
|---|
| 1535 |
|
|---|
| 1536 | /**
|
|---|
| 1537 | * Worker for PDMR3Suspend that deals with one device instance.
|
|---|
| 1538 | *
|
|---|
| 1539 | * @param pDevIns The device instance.
|
|---|
| 1540 | * @param pAsync The structure for recording asynchronous
|
|---|
| 1541 | * notification tasks.
|
|---|
| 1542 | */
|
|---|
| 1543 | DECLINLINE(void) pdmR3SuspendDev(PPDMDEVINS pDevIns, PPDMNOTIFYASYNCSTATS pAsync)
|
|---|
| 1544 | {
|
|---|
| 1545 | if (!(pDevIns->Internal.s.fIntFlags & PDMDEVINSINT_FLAGS_SUSPENDED))
|
|---|
| 1546 | {
|
|---|
| 1547 | pDevIns->Internal.s.fIntFlags |= PDMDEVINSINT_FLAGS_SUSPENDED;
|
|---|
| 1548 | if (pDevIns->pReg->pfnSuspend)
|
|---|
| 1549 | {
|
|---|
| 1550 | if (!pDevIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1551 | {
|
|---|
| 1552 | LogFlow(("PDMR3Suspend: Notifying - device '%s'/%d\n", pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 1553 | pDevIns->pReg->pfnSuspend(pDevIns);
|
|---|
| 1554 | if (pDevIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1555 | LogFlow(("PDMR3Suspend: Async notification started - device '%s'/%d\n", pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 1556 | }
|
|---|
| 1557 | else if (pDevIns->Internal.s.pfnAsyncNotify(pDevIns))
|
|---|
| 1558 | {
|
|---|
| 1559 | LogFlow(("PDMR3Suspend: Async notification completed - device '%s'/%d\n", pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 1560 | pDevIns->Internal.s.pfnAsyncNotify = NULL;
|
|---|
| 1561 | }
|
|---|
| 1562 | if (pDevIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1563 | {
|
|---|
| 1564 | pDevIns->Internal.s.fIntFlags &= ~PDMDEVINSINT_FLAGS_SUSPENDED;
|
|---|
| 1565 | pdmR3NotifyAsyncAdd(pAsync, pDevIns->Internal.s.pDevR3->pReg->szName, pDevIns->iInstance);
|
|---|
| 1566 | }
|
|---|
| 1567 | }
|
|---|
| 1568 | }
|
|---|
| 1569 | }
|
|---|
| 1570 |
|
|---|
| 1571 |
|
|---|
| 1572 | /**
|
|---|
| 1573 | * This function will notify all the devices and their attached drivers about
|
|---|
| 1574 | * the VM now being suspended.
|
|---|
| 1575 | *
|
|---|
| 1576 | * @param pVM The VM Handle.
|
|---|
| 1577 | * @thread EMT(0)
|
|---|
| 1578 | */
|
|---|
| 1579 | VMMR3DECL(void) PDMR3Suspend(PVM pVM)
|
|---|
| 1580 | {
|
|---|
| 1581 | LogFlow(("PDMR3Suspend:\n"));
|
|---|
| 1582 | VM_ASSERT_EMT0(pVM);
|
|---|
| 1583 |
|
|---|
| 1584 | /*
|
|---|
| 1585 | * The outer loop repeats until there are no more async requests.
|
|---|
| 1586 | *
|
|---|
| 1587 | * Note! We depend on the suspended indicators to be in the desired state
|
|---|
| 1588 | * and we do not reset them before starting because this allows
|
|---|
| 1589 | * PDMR3PowerOn and PDMR3Resume to use PDMR3Suspend for cleaning up
|
|---|
| 1590 | * on failure.
|
|---|
| 1591 | */
|
|---|
| 1592 | PDMNOTIFYASYNCSTATS Async;
|
|---|
| 1593 | pdmR3NotifyAsyncInit(&Async, "PDMR3Suspend");
|
|---|
| 1594 | for (;;)
|
|---|
| 1595 | {
|
|---|
| 1596 | pdmR3NotifyAsyncBeginLoop(&Async);
|
|---|
| 1597 |
|
|---|
| 1598 | /*
|
|---|
| 1599 | * Iterate thru the device instances and USB device instances,
|
|---|
| 1600 | * processing the drivers associated with those.
|
|---|
| 1601 | *
|
|---|
| 1602 | * The attached drivers are normally processed first. Some devices
|
|---|
| 1603 | * (like DevAHCI) though needs to be notified before the drivers so
|
|---|
| 1604 | * that it doesn't kick off any new requests after the drivers stopped
|
|---|
| 1605 | * taking any. (DrvVD changes to read-only in this particular case.)
|
|---|
| 1606 | */
|
|---|
| 1607 | for (PPDMDEVINS pDevIns = pVM->pdm.s.pDevInstances; pDevIns; pDevIns = pDevIns->Internal.s.pNextR3)
|
|---|
| 1608 | {
|
|---|
| 1609 | unsigned const cAsyncStart = Async.cAsync;
|
|---|
| 1610 |
|
|---|
| 1611 | if (pDevIns->pReg->fFlags & PDM_DEVREG_FLAGS_FIRST_SUSPEND_NOTIFICATION)
|
|---|
| 1612 | pdmR3SuspendDev(pDevIns, &Async);
|
|---|
| 1613 |
|
|---|
| 1614 | if (Async.cAsync == cAsyncStart)
|
|---|
| 1615 | for (PPDMLUN pLun = pDevIns->Internal.s.pLunsR3; pLun; pLun = pLun->pNext)
|
|---|
| 1616 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns; pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 1617 | if (!pdmR3SuspendDrv(pDrvIns, &Async, pDevIns->pReg->szName, pDevIns->iInstance, pLun->iLun))
|
|---|
| 1618 | break;
|
|---|
| 1619 |
|
|---|
| 1620 | if ( Async.cAsync == cAsyncStart
|
|---|
| 1621 | && !(pDevIns->pReg->fFlags & PDM_DEVREG_FLAGS_FIRST_SUSPEND_NOTIFICATION))
|
|---|
| 1622 | pdmR3SuspendDev(pDevIns, &Async);
|
|---|
| 1623 | }
|
|---|
| 1624 |
|
|---|
| 1625 | #ifdef VBOX_WITH_USB
|
|---|
| 1626 | for (PPDMUSBINS pUsbIns = pVM->pdm.s.pUsbInstances; pUsbIns; pUsbIns = pUsbIns->Internal.s.pNext)
|
|---|
| 1627 | {
|
|---|
| 1628 | unsigned const cAsyncStart = Async.cAsync;
|
|---|
| 1629 |
|
|---|
| 1630 | for (PPDMLUN pLun = pUsbIns->Internal.s.pLuns; pLun; pLun = pLun->pNext)
|
|---|
| 1631 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns; pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 1632 | if (!pdmR3SuspendDrv(pDrvIns, &Async, pUsbIns->pReg->szName, pUsbIns->iInstance, pLun->iLun))
|
|---|
| 1633 | break;
|
|---|
| 1634 |
|
|---|
| 1635 | if (Async.cAsync == cAsyncStart)
|
|---|
| 1636 | pdmR3SuspendUsb(pUsbIns, &Async);
|
|---|
| 1637 | }
|
|---|
| 1638 | #endif
|
|---|
| 1639 | if (!Async.cAsync)
|
|---|
| 1640 | break;
|
|---|
| 1641 | pdmR3NotifyAsyncLog(&Async);
|
|---|
| 1642 | pdmR3NotifyAsyncWaitAndProcessRequests(&Async, pVM);
|
|---|
| 1643 | }
|
|---|
| 1644 |
|
|---|
| 1645 | /*
|
|---|
| 1646 | * Suspend all threads.
|
|---|
| 1647 | */
|
|---|
| 1648 | pdmR3ThreadSuspendAll(pVM);
|
|---|
| 1649 |
|
|---|
| 1650 | LogFlow(("PDMR3Suspend: returns void\n"));
|
|---|
| 1651 | }
|
|---|
| 1652 |
|
|---|
| 1653 |
|
|---|
| 1654 | /**
|
|---|
| 1655 | * Worker for PDMR3Resume that deals with one driver.
|
|---|
| 1656 | *
|
|---|
| 1657 | * @param pDrvIns The driver instance.
|
|---|
| 1658 | * @param pszDevName The parent device name.
|
|---|
| 1659 | * @param iDevInstance The parent device instance number.
|
|---|
| 1660 | * @param iLun The parent LUN number.
|
|---|
| 1661 | */
|
|---|
| 1662 | DECLINLINE(int) pdmR3ResumeDrv(PPDMDRVINS pDrvIns, const char *pszDevName, uint32_t iDevInstance, uint32_t iLun)
|
|---|
| 1663 | {
|
|---|
| 1664 | Assert(pDrvIns->Internal.s.fVMSuspended);
|
|---|
| 1665 | if (pDrvIns->pReg->pfnResume)
|
|---|
| 1666 | {
|
|---|
| 1667 | LogFlow(("PDMR3Resume: Notifying - driver '%s'/%d on LUN#%d of device '%s'/%d\n",
|
|---|
| 1668 | pDrvIns->pReg->szName, pDrvIns->iInstance, iLun, pszDevName, iDevInstance));
|
|---|
| 1669 | int rc = VINF_SUCCESS; pDrvIns->pReg->pfnResume(pDrvIns);
|
|---|
| 1670 | if (RT_FAILURE(rc))
|
|---|
| 1671 | {
|
|---|
| 1672 | LogRel(("PDMR3Resume: driver '%s'/%d on LUN#%d of device '%s'/%d -> %Rrc\n",
|
|---|
| 1673 | pDrvIns->pReg->szName, pDrvIns->iInstance, iLun, pszDevName, iDevInstance, rc));
|
|---|
| 1674 | return rc;
|
|---|
| 1675 | }
|
|---|
| 1676 | }
|
|---|
| 1677 | pDrvIns->Internal.s.fVMSuspended = false;
|
|---|
| 1678 | return VINF_SUCCESS;
|
|---|
| 1679 | }
|
|---|
| 1680 |
|
|---|
| 1681 |
|
|---|
| 1682 | /**
|
|---|
| 1683 | * Worker for PDMR3Resume that deals with one USB device instance.
|
|---|
| 1684 | *
|
|---|
| 1685 | * @returns VBox status code.
|
|---|
| 1686 | * @param pUsbIns The USB device instance.
|
|---|
| 1687 | */
|
|---|
| 1688 | DECLINLINE(int) pdmR3ResumeUsb(PPDMUSBINS pUsbIns)
|
|---|
| 1689 | {
|
|---|
| 1690 | Assert(pUsbIns->Internal.s.fVMSuspended);
|
|---|
| 1691 | if (pUsbIns->pReg->pfnVMResume)
|
|---|
| 1692 | {
|
|---|
| 1693 | LogFlow(("PDMR3Resume: Notifying - device '%s'/%d\n", pUsbIns->pReg->szName, pUsbIns->iInstance));
|
|---|
| 1694 | int rc = VINF_SUCCESS; pUsbIns->pReg->pfnVMResume(pUsbIns);
|
|---|
| 1695 | if (RT_FAILURE(rc))
|
|---|
| 1696 | {
|
|---|
| 1697 | LogRel(("PDMR3Resume: device '%s'/%d -> %Rrc\n", pUsbIns->pReg->szName, pUsbIns->iInstance, rc));
|
|---|
| 1698 | return rc;
|
|---|
| 1699 | }
|
|---|
| 1700 | }
|
|---|
| 1701 | pUsbIns->Internal.s.fVMSuspended = false;
|
|---|
| 1702 | return VINF_SUCCESS;
|
|---|
| 1703 | }
|
|---|
| 1704 |
|
|---|
| 1705 |
|
|---|
| 1706 | /**
|
|---|
| 1707 | * Worker for PDMR3Resume that deals with one device instance.
|
|---|
| 1708 | *
|
|---|
| 1709 | * @returns VBox status code.
|
|---|
| 1710 | * @param pDevIns The device instance.
|
|---|
| 1711 | */
|
|---|
| 1712 | DECLINLINE(int) pdmR3ResumeDev(PPDMDEVINS pDevIns)
|
|---|
| 1713 | {
|
|---|
| 1714 | Assert(pDevIns->Internal.s.fIntFlags & PDMDEVINSINT_FLAGS_SUSPENDED);
|
|---|
| 1715 | if (pDevIns->pReg->pfnResume)
|
|---|
| 1716 | {
|
|---|
| 1717 | LogFlow(("PDMR3Resume: Notifying - device '%s'/%d\n", pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 1718 | int rc = VINF_SUCCESS; pDevIns->pReg->pfnResume(pDevIns);
|
|---|
| 1719 | if (RT_FAILURE(rc))
|
|---|
| 1720 | {
|
|---|
| 1721 | LogRel(("PDMR3Resume: device '%s'/%d -> %Rrc\n", pDevIns->pReg->szName, pDevIns->iInstance, rc));
|
|---|
| 1722 | return rc;
|
|---|
| 1723 | }
|
|---|
| 1724 | }
|
|---|
| 1725 | pDevIns->Internal.s.fIntFlags &= ~PDMDEVINSINT_FLAGS_SUSPENDED;
|
|---|
| 1726 | return VINF_SUCCESS;
|
|---|
| 1727 | }
|
|---|
| 1728 |
|
|---|
| 1729 |
|
|---|
| 1730 | /**
|
|---|
| 1731 | * This function will notify all the devices and their
|
|---|
| 1732 | * attached drivers about the VM now being resumed.
|
|---|
| 1733 | *
|
|---|
| 1734 | * @param pVM VM Handle.
|
|---|
| 1735 | */
|
|---|
| 1736 | VMMR3DECL(void) PDMR3Resume(PVM pVM)
|
|---|
| 1737 | {
|
|---|
| 1738 | LogFlow(("PDMR3Resume:\n"));
|
|---|
| 1739 |
|
|---|
| 1740 | /*
|
|---|
| 1741 | * Iterate thru the device instances and USB device instances,
|
|---|
| 1742 | * processing the drivers associated with those.
|
|---|
| 1743 | */
|
|---|
| 1744 | int rc = VINF_SUCCESS;
|
|---|
| 1745 | for (PPDMDEVINS pDevIns = pVM->pdm.s.pDevInstances; pDevIns && RT_SUCCESS(rc); pDevIns = pDevIns->Internal.s.pNextR3)
|
|---|
| 1746 | {
|
|---|
| 1747 | for (PPDMLUN pLun = pDevIns->Internal.s.pLunsR3; pLun && RT_SUCCESS(rc); pLun = pLun->pNext)
|
|---|
| 1748 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns && RT_SUCCESS(rc); pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 1749 | rc = pdmR3ResumeDrv(pDrvIns, pDevIns->pReg->szName, pDevIns->iInstance, pLun->iLun);
|
|---|
| 1750 | if (RT_SUCCESS(rc))
|
|---|
| 1751 | rc = pdmR3ResumeDev(pDevIns);
|
|---|
| 1752 | }
|
|---|
| 1753 |
|
|---|
| 1754 | #ifdef VBOX_WITH_USB
|
|---|
| 1755 | for (PPDMUSBINS pUsbIns = pVM->pdm.s.pUsbInstances; pUsbIns && RT_SUCCESS(rc); pUsbIns = pUsbIns->Internal.s.pNext)
|
|---|
| 1756 | {
|
|---|
| 1757 | for (PPDMLUN pLun = pUsbIns->Internal.s.pLuns; pLun && RT_SUCCESS(rc); pLun = pLun->pNext)
|
|---|
| 1758 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns && RT_SUCCESS(rc); pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 1759 | rc = pdmR3ResumeDrv(pDrvIns, pUsbIns->pReg->szName, pUsbIns->iInstance, pLun->iLun);
|
|---|
| 1760 | if (RT_SUCCESS(rc))
|
|---|
| 1761 | rc = pdmR3ResumeUsb(pUsbIns);
|
|---|
| 1762 | }
|
|---|
| 1763 | #endif
|
|---|
| 1764 |
|
|---|
| 1765 | /*
|
|---|
| 1766 | * Resume all threads.
|
|---|
| 1767 | */
|
|---|
| 1768 | if (RT_SUCCESS(rc))
|
|---|
| 1769 | pdmR3ThreadResumeAll(pVM);
|
|---|
| 1770 |
|
|---|
| 1771 | /*
|
|---|
| 1772 | * Resume the block cache.
|
|---|
| 1773 | */
|
|---|
| 1774 | if (RT_SUCCESS(rc))
|
|---|
| 1775 | pdmR3BlkCacheResume(pVM);
|
|---|
| 1776 |
|
|---|
| 1777 | /*
|
|---|
| 1778 | * On failure, clean up via PDMR3Suspend.
|
|---|
| 1779 | */
|
|---|
| 1780 | if (RT_FAILURE(rc))
|
|---|
| 1781 | PDMR3Suspend(pVM);
|
|---|
| 1782 |
|
|---|
| 1783 | LogFlow(("PDMR3Resume: returns %Rrc\n", rc));
|
|---|
| 1784 | return /*rc*/;
|
|---|
| 1785 | }
|
|---|
| 1786 |
|
|---|
| 1787 |
|
|---|
| 1788 | /**
|
|---|
| 1789 | * Worker for PDMR3PowerOff that deals with one driver.
|
|---|
| 1790 | *
|
|---|
| 1791 | * @param pDrvIns The driver instance.
|
|---|
| 1792 | * @param pAsync The structure for recording asynchronous
|
|---|
| 1793 | * notification tasks.
|
|---|
| 1794 | * @param pszDevName The parent device name.
|
|---|
| 1795 | * @param iDevInstance The parent device instance number.
|
|---|
| 1796 | * @param iLun The parent LUN number.
|
|---|
| 1797 | */
|
|---|
| 1798 | DECLINLINE(bool) pdmR3PowerOffDrv(PPDMDRVINS pDrvIns, PPDMNOTIFYASYNCSTATS pAsync,
|
|---|
| 1799 | const char *pszDevName, uint32_t iDevInstance, uint32_t iLun)
|
|---|
| 1800 | {
|
|---|
| 1801 | if (!pDrvIns->Internal.s.fVMSuspended)
|
|---|
| 1802 | {
|
|---|
| 1803 | pDrvIns->Internal.s.fVMSuspended = true;
|
|---|
| 1804 | if (pDrvIns->pReg->pfnPowerOff)
|
|---|
| 1805 | {
|
|---|
| 1806 | if (!pDrvIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1807 | {
|
|---|
| 1808 | LogFlow(("PDMR3PowerOff: Notifying - driver '%s'/%d on LUN#%d of device '%s'/%d\n",
|
|---|
| 1809 | pDrvIns->pReg->szName, pDrvIns->iInstance, iLun, pszDevName, iDevInstance));
|
|---|
| 1810 | pDrvIns->pReg->pfnPowerOff(pDrvIns);
|
|---|
| 1811 | if (pDrvIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1812 | LogFlow(("PDMR3PowerOff: Async notification started - driver '%s'/%d on LUN#%d of device '%s'/%d\n",
|
|---|
| 1813 | pDrvIns->pReg->szName, pDrvIns->iInstance, iLun, pszDevName, iDevInstance));
|
|---|
| 1814 | }
|
|---|
| 1815 | else if (pDrvIns->Internal.s.pfnAsyncNotify(pDrvIns))
|
|---|
| 1816 | {
|
|---|
| 1817 | pDrvIns->Internal.s.pfnAsyncNotify = false;
|
|---|
| 1818 | LogFlow(("PDMR3PowerOff: Async notification completed - driver '%s'/%d on LUN#%d of device '%s'/%d\n",
|
|---|
| 1819 | pDrvIns->pReg->szName, pDrvIns->iInstance, iLun, pszDevName, iDevInstance));
|
|---|
| 1820 | }
|
|---|
| 1821 | if (pDrvIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1822 | {
|
|---|
| 1823 | pDrvIns->Internal.s.fVMSuspended = false;
|
|---|
| 1824 | pdmR3NotifyAsyncAddDrv(pAsync, pDrvIns->Internal.s.pDrv->pReg->szName, pDrvIns->iInstance,
|
|---|
| 1825 | pszDevName, iDevInstance, iLun);
|
|---|
| 1826 | return false;
|
|---|
| 1827 | }
|
|---|
| 1828 | }
|
|---|
| 1829 | }
|
|---|
| 1830 | return true;
|
|---|
| 1831 | }
|
|---|
| 1832 |
|
|---|
| 1833 |
|
|---|
| 1834 | /**
|
|---|
| 1835 | * Worker for PDMR3PowerOff that deals with one USB device instance.
|
|---|
| 1836 | *
|
|---|
| 1837 | * @param pUsbIns The USB device instance.
|
|---|
| 1838 | * @param pAsync The structure for recording asynchronous
|
|---|
| 1839 | * notification tasks.
|
|---|
| 1840 | */
|
|---|
| 1841 | DECLINLINE(void) pdmR3PowerOffUsb(PPDMUSBINS pUsbIns, PPDMNOTIFYASYNCSTATS pAsync)
|
|---|
| 1842 | {
|
|---|
| 1843 | if (!pUsbIns->Internal.s.fVMSuspended)
|
|---|
| 1844 | {
|
|---|
| 1845 | pUsbIns->Internal.s.fVMSuspended = true;
|
|---|
| 1846 | if (pUsbIns->pReg->pfnVMPowerOff)
|
|---|
| 1847 | {
|
|---|
| 1848 | if (!pUsbIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1849 | {
|
|---|
| 1850 | LogFlow(("PDMR3PowerOff: Notifying - device '%s'/%d\n", pUsbIns->pReg->szName, pUsbIns->iInstance));
|
|---|
| 1851 | pUsbIns->pReg->pfnVMPowerOff(pUsbIns);
|
|---|
| 1852 | if (pUsbIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1853 | LogFlow(("PDMR3PowerOff: Async notification started - device '%s'/%d\n", pUsbIns->pReg->szName, pUsbIns->iInstance));
|
|---|
| 1854 | }
|
|---|
| 1855 | else if (pUsbIns->Internal.s.pfnAsyncNotify(pUsbIns))
|
|---|
| 1856 | {
|
|---|
| 1857 | LogFlow(("PDMR3PowerOff: Async notification completed - device '%s'/%d\n", pUsbIns->pReg->szName, pUsbIns->iInstance));
|
|---|
| 1858 | pUsbIns->Internal.s.pfnAsyncNotify = NULL;
|
|---|
| 1859 | }
|
|---|
| 1860 | if (pUsbIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1861 | {
|
|---|
| 1862 | pUsbIns->Internal.s.fVMSuspended = false;
|
|---|
| 1863 | pdmR3NotifyAsyncAdd(pAsync, pUsbIns->Internal.s.pUsbDev->pReg->szName, pUsbIns->iInstance);
|
|---|
| 1864 | }
|
|---|
| 1865 | }
|
|---|
| 1866 | }
|
|---|
| 1867 | }
|
|---|
| 1868 |
|
|---|
| 1869 |
|
|---|
| 1870 | /**
|
|---|
| 1871 | * Worker for PDMR3PowerOff that deals with one device instance.
|
|---|
| 1872 | *
|
|---|
| 1873 | * @param pDevIns The device instance.
|
|---|
| 1874 | * @param pAsync The structure for recording asynchronous
|
|---|
| 1875 | * notification tasks.
|
|---|
| 1876 | */
|
|---|
| 1877 | DECLINLINE(void) pdmR3PowerOffDev(PPDMDEVINS pDevIns, PPDMNOTIFYASYNCSTATS pAsync)
|
|---|
| 1878 | {
|
|---|
| 1879 | if (!(pDevIns->Internal.s.fIntFlags & PDMDEVINSINT_FLAGS_SUSPENDED))
|
|---|
| 1880 | {
|
|---|
| 1881 | pDevIns->Internal.s.fIntFlags |= PDMDEVINSINT_FLAGS_SUSPENDED;
|
|---|
| 1882 | if (pDevIns->pReg->pfnPowerOff)
|
|---|
| 1883 | {
|
|---|
| 1884 | if (!pDevIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1885 | {
|
|---|
| 1886 | LogFlow(("PDMR3PowerOff: Notifying - device '%s'/%d\n", pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 1887 | pDevIns->pReg->pfnPowerOff(pDevIns);
|
|---|
| 1888 | if (pDevIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1889 | LogFlow(("PDMR3PowerOff: Async notification started - device '%s'/%d\n", pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 1890 | }
|
|---|
| 1891 | else if (pDevIns->Internal.s.pfnAsyncNotify(pDevIns))
|
|---|
| 1892 | {
|
|---|
| 1893 | LogFlow(("PDMR3PowerOff: Async notification completed - device '%s'/%d\n", pDevIns->pReg->szName, pDevIns->iInstance));
|
|---|
| 1894 | pDevIns->Internal.s.pfnAsyncNotify = NULL;
|
|---|
| 1895 | }
|
|---|
| 1896 | if (pDevIns->Internal.s.pfnAsyncNotify)
|
|---|
| 1897 | {
|
|---|
| 1898 | pDevIns->Internal.s.fIntFlags &= ~PDMDEVINSINT_FLAGS_SUSPENDED;
|
|---|
| 1899 | pdmR3NotifyAsyncAdd(pAsync, pDevIns->Internal.s.pDevR3->pReg->szName, pDevIns->iInstance);
|
|---|
| 1900 | }
|
|---|
| 1901 | }
|
|---|
| 1902 | }
|
|---|
| 1903 | }
|
|---|
| 1904 |
|
|---|
| 1905 |
|
|---|
| 1906 | /**
|
|---|
| 1907 | * This function will notify all the devices and their
|
|---|
| 1908 | * attached drivers about the VM being powered off.
|
|---|
| 1909 | *
|
|---|
| 1910 | * @param pVM VM Handle.
|
|---|
| 1911 | */
|
|---|
| 1912 | VMMR3DECL(void) PDMR3PowerOff(PVM pVM)
|
|---|
| 1913 | {
|
|---|
| 1914 | LogFlow(("PDMR3PowerOff:\n"));
|
|---|
| 1915 |
|
|---|
| 1916 | /*
|
|---|
| 1917 | * The outer loop repeats until there are no more async requests.
|
|---|
| 1918 | */
|
|---|
| 1919 | PDMNOTIFYASYNCSTATS Async;
|
|---|
| 1920 | pdmR3NotifyAsyncInit(&Async, "PDMR3PowerOff");
|
|---|
| 1921 | for (;;)
|
|---|
| 1922 | {
|
|---|
| 1923 | pdmR3NotifyAsyncBeginLoop(&Async);
|
|---|
| 1924 |
|
|---|
| 1925 | /*
|
|---|
| 1926 | * Iterate thru the device instances and USB device instances,
|
|---|
| 1927 | * processing the drivers associated with those.
|
|---|
| 1928 | *
|
|---|
| 1929 | * The attached drivers are normally processed first. Some devices
|
|---|
| 1930 | * (like DevAHCI) though needs to be notified before the drivers so
|
|---|
| 1931 | * that it doesn't kick off any new requests after the drivers stopped
|
|---|
| 1932 | * taking any. (DrvVD changes to read-only in this particular case.)
|
|---|
| 1933 | */
|
|---|
| 1934 | for (PPDMDEVINS pDevIns = pVM->pdm.s.pDevInstances; pDevIns; pDevIns = pDevIns->Internal.s.pNextR3)
|
|---|
| 1935 | {
|
|---|
| 1936 | unsigned const cAsyncStart = Async.cAsync;
|
|---|
| 1937 |
|
|---|
| 1938 | if (pDevIns->pReg->fFlags & PDM_DEVREG_FLAGS_FIRST_POWEROFF_NOTIFICATION)
|
|---|
| 1939 | pdmR3PowerOffDev(pDevIns, &Async);
|
|---|
| 1940 |
|
|---|
| 1941 | if (Async.cAsync == cAsyncStart)
|
|---|
| 1942 | for (PPDMLUN pLun = pDevIns->Internal.s.pLunsR3; pLun; pLun = pLun->pNext)
|
|---|
| 1943 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns; pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 1944 | if (!pdmR3PowerOffDrv(pDrvIns, &Async, pDevIns->pReg->szName, pDevIns->iInstance, pLun->iLun))
|
|---|
| 1945 | break;
|
|---|
| 1946 |
|
|---|
| 1947 | if ( Async.cAsync == cAsyncStart
|
|---|
| 1948 | && !(pDevIns->pReg->fFlags & PDM_DEVREG_FLAGS_FIRST_POWEROFF_NOTIFICATION))
|
|---|
| 1949 | pdmR3PowerOffDev(pDevIns, &Async);
|
|---|
| 1950 | }
|
|---|
| 1951 |
|
|---|
| 1952 | #ifdef VBOX_WITH_USB
|
|---|
| 1953 | for (PPDMUSBINS pUsbIns = pVM->pdm.s.pUsbInstances; pUsbIns; pUsbIns = pUsbIns->Internal.s.pNext)
|
|---|
| 1954 | {
|
|---|
| 1955 | unsigned const cAsyncStart = Async.cAsync;
|
|---|
| 1956 |
|
|---|
| 1957 | for (PPDMLUN pLun = pUsbIns->Internal.s.pLuns; pLun; pLun = pLun->pNext)
|
|---|
| 1958 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns; pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 1959 | if (!pdmR3PowerOffDrv(pDrvIns, &Async, pUsbIns->pReg->szName, pUsbIns->iInstance, pLun->iLun))
|
|---|
| 1960 | break;
|
|---|
| 1961 |
|
|---|
| 1962 | if (Async.cAsync == cAsyncStart)
|
|---|
| 1963 | pdmR3PowerOffUsb(pUsbIns, &Async);
|
|---|
| 1964 | }
|
|---|
| 1965 | #endif
|
|---|
| 1966 | if (!Async.cAsync)
|
|---|
| 1967 | break;
|
|---|
| 1968 | pdmR3NotifyAsyncLog(&Async);
|
|---|
| 1969 | pdmR3NotifyAsyncWaitAndProcessRequests(&Async, pVM);
|
|---|
| 1970 | }
|
|---|
| 1971 |
|
|---|
| 1972 | /*
|
|---|
| 1973 | * Suspend all threads.
|
|---|
| 1974 | */
|
|---|
| 1975 | pdmR3ThreadSuspendAll(pVM);
|
|---|
| 1976 |
|
|---|
| 1977 | LogFlow(("PDMR3PowerOff: returns void\n"));
|
|---|
| 1978 | }
|
|---|
| 1979 |
|
|---|
| 1980 |
|
|---|
| 1981 | /**
|
|---|
| 1982 | * Queries the base interface of a device instance.
|
|---|
| 1983 | *
|
|---|
| 1984 | * The caller can use this to query other interfaces the device implements
|
|---|
| 1985 | * and use them to talk to the device.
|
|---|
| 1986 | *
|
|---|
| 1987 | * @returns VBox status code.
|
|---|
| 1988 | * @param pVM VM handle.
|
|---|
| 1989 | * @param pszDevice Device name.
|
|---|
| 1990 | * @param iInstance Device instance.
|
|---|
| 1991 | * @param ppBase Where to store the pointer to the base device interface on success.
|
|---|
| 1992 | * @remark We're not doing any locking ATM, so don't try call this at times when the
|
|---|
| 1993 | * device chain is known to be updated.
|
|---|
| 1994 | */
|
|---|
| 1995 | VMMR3DECL(int) PDMR3QueryDevice(PVM pVM, const char *pszDevice, unsigned iInstance, PPDMIBASE *ppBase)
|
|---|
| 1996 | {
|
|---|
| 1997 | LogFlow(("PDMR3DeviceQuery: pszDevice=%p:{%s} iInstance=%u ppBase=%p\n", pszDevice, pszDevice, iInstance, ppBase));
|
|---|
| 1998 |
|
|---|
| 1999 | /*
|
|---|
| 2000 | * Iterate registered devices looking for the device.
|
|---|
| 2001 | */
|
|---|
| 2002 | size_t cchDevice = strlen(pszDevice);
|
|---|
| 2003 | for (PPDMDEV pDev = pVM->pdm.s.pDevs; pDev; pDev = pDev->pNext)
|
|---|
| 2004 | {
|
|---|
| 2005 | if ( pDev->cchName == cchDevice
|
|---|
| 2006 | && !memcmp(pDev->pReg->szName, pszDevice, cchDevice))
|
|---|
| 2007 | {
|
|---|
| 2008 | /*
|
|---|
| 2009 | * Iterate device instances.
|
|---|
| 2010 | */
|
|---|
| 2011 | for (PPDMDEVINS pDevIns = pDev->pInstances; pDevIns; pDevIns = pDevIns->Internal.s.pPerDeviceNextR3)
|
|---|
| 2012 | {
|
|---|
| 2013 | if (pDevIns->iInstance == iInstance)
|
|---|
| 2014 | {
|
|---|
| 2015 | if (pDevIns->IBase.pfnQueryInterface)
|
|---|
| 2016 | {
|
|---|
| 2017 | *ppBase = &pDevIns->IBase;
|
|---|
| 2018 | LogFlow(("PDMR3DeviceQuery: return VINF_SUCCESS and *ppBase=%p\n", *ppBase));
|
|---|
| 2019 | return VINF_SUCCESS;
|
|---|
| 2020 | }
|
|---|
| 2021 |
|
|---|
| 2022 | LogFlow(("PDMR3DeviceQuery: returns VERR_PDM_DEVICE_INSTANCE_NO_IBASE\n"));
|
|---|
| 2023 | return VERR_PDM_DEVICE_INSTANCE_NO_IBASE;
|
|---|
| 2024 | }
|
|---|
| 2025 | }
|
|---|
| 2026 |
|
|---|
| 2027 | LogFlow(("PDMR3DeviceQuery: returns VERR_PDM_DEVICE_INSTANCE_NOT_FOUND\n"));
|
|---|
| 2028 | return VERR_PDM_DEVICE_INSTANCE_NOT_FOUND;
|
|---|
| 2029 | }
|
|---|
| 2030 | }
|
|---|
| 2031 |
|
|---|
| 2032 | LogFlow(("PDMR3QueryDevice: returns VERR_PDM_DEVICE_NOT_FOUND\n"));
|
|---|
| 2033 | return VERR_PDM_DEVICE_NOT_FOUND;
|
|---|
| 2034 | }
|
|---|
| 2035 |
|
|---|
| 2036 |
|
|---|
| 2037 | /**
|
|---|
| 2038 | * Queries the base interface of a device LUN.
|
|---|
| 2039 | *
|
|---|
| 2040 | * This differs from PDMR3QueryLun by that it returns the interface on the
|
|---|
| 2041 | * device and not the top level driver.
|
|---|
| 2042 | *
|
|---|
| 2043 | * @returns VBox status code.
|
|---|
| 2044 | * @param pVM VM Handle.
|
|---|
| 2045 | * @param pszDevice Device name.
|
|---|
| 2046 | * @param iInstance Device instance.
|
|---|
| 2047 | * @param iLun The Logical Unit to obtain the interface of.
|
|---|
| 2048 | * @param ppBase Where to store the base interface pointer.
|
|---|
| 2049 | * @remark We're not doing any locking ATM, so don't try call this at times when the
|
|---|
| 2050 | * device chain is known to be updated.
|
|---|
| 2051 | */
|
|---|
| 2052 | VMMR3DECL(int) PDMR3QueryDeviceLun(PVM pVM, const char *pszDevice, unsigned iInstance, unsigned iLun, PPDMIBASE *ppBase)
|
|---|
| 2053 | {
|
|---|
| 2054 | LogFlow(("PDMR3QueryLun: pszDevice=%p:{%s} iInstance=%u iLun=%u ppBase=%p\n",
|
|---|
| 2055 | pszDevice, pszDevice, iInstance, iLun, ppBase));
|
|---|
| 2056 |
|
|---|
| 2057 | /*
|
|---|
| 2058 | * Find the LUN.
|
|---|
| 2059 | */
|
|---|
| 2060 | PPDMLUN pLun;
|
|---|
| 2061 | int rc = pdmR3DevFindLun(pVM, pszDevice, iInstance, iLun, &pLun);
|
|---|
| 2062 | if (RT_SUCCESS(rc))
|
|---|
| 2063 | {
|
|---|
| 2064 | *ppBase = pLun->pBase;
|
|---|
| 2065 | LogFlow(("PDMR3QueryDeviceLun: return VINF_SUCCESS and *ppBase=%p\n", *ppBase));
|
|---|
| 2066 | return VINF_SUCCESS;
|
|---|
| 2067 | }
|
|---|
| 2068 | LogFlow(("PDMR3QueryDeviceLun: returns %Rrc\n", rc));
|
|---|
| 2069 | return rc;
|
|---|
| 2070 | }
|
|---|
| 2071 |
|
|---|
| 2072 |
|
|---|
| 2073 | /**
|
|---|
| 2074 | * Query the interface of the top level driver on a LUN.
|
|---|
| 2075 | *
|
|---|
| 2076 | * @returns VBox status code.
|
|---|
| 2077 | * @param pVM VM Handle.
|
|---|
| 2078 | * @param pszDevice Device name.
|
|---|
| 2079 | * @param iInstance Device instance.
|
|---|
| 2080 | * @param iLun The Logical Unit to obtain the interface of.
|
|---|
| 2081 | * @param ppBase Where to store the base interface pointer.
|
|---|
| 2082 | * @remark We're not doing any locking ATM, so don't try call this at times when the
|
|---|
| 2083 | * device chain is known to be updated.
|
|---|
| 2084 | */
|
|---|
| 2085 | VMMR3DECL(int) PDMR3QueryLun(PVM pVM, const char *pszDevice, unsigned iInstance, unsigned iLun, PPDMIBASE *ppBase)
|
|---|
| 2086 | {
|
|---|
| 2087 | LogFlow(("PDMR3QueryLun: pszDevice=%p:{%s} iInstance=%u iLun=%u ppBase=%p\n",
|
|---|
| 2088 | pszDevice, pszDevice, iInstance, iLun, ppBase));
|
|---|
| 2089 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
|---|
| 2090 |
|
|---|
| 2091 | /*
|
|---|
| 2092 | * Find the LUN.
|
|---|
| 2093 | */
|
|---|
| 2094 | PPDMLUN pLun;
|
|---|
| 2095 | int rc = pdmR3DevFindLun(pVM, pszDevice, iInstance, iLun, &pLun);
|
|---|
| 2096 | if (RT_SUCCESS(rc))
|
|---|
| 2097 | {
|
|---|
| 2098 | if (pLun->pTop)
|
|---|
| 2099 | {
|
|---|
| 2100 | *ppBase = &pLun->pTop->IBase;
|
|---|
| 2101 | LogFlow(("PDMR3QueryLun: return %Rrc and *ppBase=%p\n", VINF_SUCCESS, *ppBase));
|
|---|
| 2102 | return VINF_SUCCESS;
|
|---|
| 2103 | }
|
|---|
| 2104 | rc = VERR_PDM_NO_DRIVER_ATTACHED_TO_LUN;
|
|---|
| 2105 | }
|
|---|
| 2106 | LogFlow(("PDMR3QueryLun: returns %Rrc\n", rc));
|
|---|
| 2107 | return rc;
|
|---|
| 2108 | }
|
|---|
| 2109 |
|
|---|
| 2110 |
|
|---|
| 2111 | /**
|
|---|
| 2112 | * Query the interface of a named driver on a LUN.
|
|---|
| 2113 | *
|
|---|
| 2114 | * If the driver appears more than once in the driver chain, the first instance
|
|---|
| 2115 | * is returned.
|
|---|
| 2116 | *
|
|---|
| 2117 | * @returns VBox status code.
|
|---|
| 2118 | * @param pVM VM Handle.
|
|---|
| 2119 | * @param pszDevice Device name.
|
|---|
| 2120 | * @param iInstance Device instance.
|
|---|
| 2121 | * @param iLun The Logical Unit to obtain the interface of.
|
|---|
| 2122 | * @param pszDriver The driver name.
|
|---|
| 2123 | * @param ppBase Where to store the base interface pointer.
|
|---|
| 2124 | *
|
|---|
| 2125 | * @remark We're not doing any locking ATM, so don't try call this at times when the
|
|---|
| 2126 | * device chain is known to be updated.
|
|---|
| 2127 | */
|
|---|
| 2128 | VMMR3DECL(int) PDMR3QueryDriverOnLun(PVM pVM, const char *pszDevice, unsigned iInstance, unsigned iLun, const char *pszDriver, PPPDMIBASE ppBase)
|
|---|
| 2129 | {
|
|---|
| 2130 | LogFlow(("PDMR3QueryDriverOnLun: pszDevice=%p:{%s} iInstance=%u iLun=%u pszDriver=%p:{%s} ppBase=%p\n",
|
|---|
| 2131 | pszDevice, pszDevice, iInstance, iLun, pszDriver, pszDriver, ppBase));
|
|---|
| 2132 |
|
|---|
| 2133 | /*
|
|---|
| 2134 | * Find the LUN.
|
|---|
| 2135 | */
|
|---|
| 2136 | PPDMLUN pLun;
|
|---|
| 2137 | int rc = pdmR3DevFindLun(pVM, pszDevice, iInstance, iLun, &pLun);
|
|---|
| 2138 | if (RT_SUCCESS(rc))
|
|---|
| 2139 | {
|
|---|
| 2140 | if (pLun->pTop)
|
|---|
| 2141 | {
|
|---|
| 2142 | for (PPDMDRVINS pDrvIns = pLun->pTop; pDrvIns; pDrvIns = pDrvIns->Internal.s.pDown)
|
|---|
| 2143 | if (!strcmp(pDrvIns->pReg->szName, pszDriver))
|
|---|
| 2144 | {
|
|---|
| 2145 | *ppBase = &pDrvIns->IBase;
|
|---|
| 2146 | LogFlow(("PDMR3QueryDriverOnLun: return %Rrc and *ppBase=%p\n", VINF_SUCCESS, *ppBase));
|
|---|
| 2147 | return VINF_SUCCESS;
|
|---|
| 2148 |
|
|---|
| 2149 | }
|
|---|
| 2150 | rc = VERR_PDM_DRIVER_NOT_FOUND;
|
|---|
| 2151 | }
|
|---|
| 2152 | else
|
|---|
| 2153 | rc = VERR_PDM_NO_DRIVER_ATTACHED_TO_LUN;
|
|---|
| 2154 | }
|
|---|
| 2155 | LogFlow(("PDMR3QueryDriverOnLun: returns %Rrc\n", rc));
|
|---|
| 2156 | return rc;
|
|---|
| 2157 | }
|
|---|
| 2158 |
|
|---|
| 2159 | /**
|
|---|
| 2160 | * Executes pending DMA transfers.
|
|---|
| 2161 | * Forced Action handler.
|
|---|
| 2162 | *
|
|---|
| 2163 | * @param pVM VM handle.
|
|---|
| 2164 | */
|
|---|
| 2165 | VMMR3DECL(void) PDMR3DmaRun(PVM pVM)
|
|---|
| 2166 | {
|
|---|
| 2167 | /* Note! Not really SMP safe; restrict it to VCPU 0. */
|
|---|
| 2168 | if (VMMGetCpuId(pVM) != 0)
|
|---|
| 2169 | return;
|
|---|
| 2170 |
|
|---|
| 2171 | if (VM_FF_TESTANDCLEAR(pVM, VM_FF_PDM_DMA))
|
|---|
| 2172 | {
|
|---|
| 2173 | if (pVM->pdm.s.pDmac)
|
|---|
| 2174 | {
|
|---|
| 2175 | bool fMore = pVM->pdm.s.pDmac->Reg.pfnRun(pVM->pdm.s.pDmac->pDevIns);
|
|---|
| 2176 | if (fMore)
|
|---|
| 2177 | VM_FF_SET(pVM, VM_FF_PDM_DMA);
|
|---|
| 2178 | }
|
|---|
| 2179 | }
|
|---|
| 2180 | }
|
|---|
| 2181 |
|
|---|
| 2182 |
|
|---|
| 2183 | /**
|
|---|
| 2184 | * Service a VMMCALLRING3_PDM_LOCK call.
|
|---|
| 2185 | *
|
|---|
| 2186 | * @returns VBox status code.
|
|---|
| 2187 | * @param pVM The VM handle.
|
|---|
| 2188 | */
|
|---|
| 2189 | VMMR3DECL(int) PDMR3LockCall(PVM pVM)
|
|---|
| 2190 | {
|
|---|
| 2191 | return PDMR3CritSectEnterEx(&pVM->pdm.s.CritSect, true /* fHostCall */);
|
|---|
| 2192 | }
|
|---|
| 2193 |
|
|---|
| 2194 |
|
|---|
| 2195 | /**
|
|---|
| 2196 | * Registers the VMM device heap
|
|---|
| 2197 | *
|
|---|
| 2198 | * @returns VBox status code.
|
|---|
| 2199 | * @param pVM VM handle.
|
|---|
| 2200 | * @param GCPhys The physical address.
|
|---|
| 2201 | * @param pvHeap Ring-3 pointer.
|
|---|
| 2202 | * @param cbSize Size of the heap.
|
|---|
| 2203 | */
|
|---|
| 2204 | VMMR3DECL(int) PDMR3RegisterVMMDevHeap(PVM pVM, RTGCPHYS GCPhys, RTR3PTR pvHeap, unsigned cbSize)
|
|---|
| 2205 | {
|
|---|
| 2206 | Assert(pVM->pdm.s.pvVMMDevHeap == NULL);
|
|---|
| 2207 |
|
|---|
| 2208 | Log(("PDMR3RegisterVMMDevHeap %RGp %RHv %x\n", GCPhys, pvHeap, cbSize));
|
|---|
| 2209 | pVM->pdm.s.pvVMMDevHeap = pvHeap;
|
|---|
| 2210 | pVM->pdm.s.GCPhysVMMDevHeap = GCPhys;
|
|---|
| 2211 | pVM->pdm.s.cbVMMDevHeap = cbSize;
|
|---|
| 2212 | pVM->pdm.s.cbVMMDevHeapLeft = cbSize;
|
|---|
| 2213 | return VINF_SUCCESS;
|
|---|
| 2214 | }
|
|---|
| 2215 |
|
|---|
| 2216 |
|
|---|
| 2217 | /**
|
|---|
| 2218 | * Unregisters the VMM device heap
|
|---|
| 2219 | *
|
|---|
| 2220 | * @returns VBox status code.
|
|---|
| 2221 | * @param pVM VM handle.
|
|---|
| 2222 | * @param GCPhys The physical address.
|
|---|
| 2223 | */
|
|---|
| 2224 | VMMR3DECL(int) PDMR3UnregisterVMMDevHeap(PVM pVM, RTGCPHYS GCPhys)
|
|---|
| 2225 | {
|
|---|
| 2226 | Assert(pVM->pdm.s.GCPhysVMMDevHeap == GCPhys);
|
|---|
| 2227 |
|
|---|
| 2228 | Log(("PDMR3UnregisterVMMDevHeap %RGp\n", GCPhys));
|
|---|
| 2229 | pVM->pdm.s.pvVMMDevHeap = NULL;
|
|---|
| 2230 | pVM->pdm.s.GCPhysVMMDevHeap = NIL_RTGCPHYS;
|
|---|
| 2231 | pVM->pdm.s.cbVMMDevHeap = 0;
|
|---|
| 2232 | pVM->pdm.s.cbVMMDevHeapLeft = 0;
|
|---|
| 2233 | return VINF_SUCCESS;
|
|---|
| 2234 | }
|
|---|
| 2235 |
|
|---|
| 2236 |
|
|---|
| 2237 | /**
|
|---|
| 2238 | * Allocates memory from the VMM device heap
|
|---|
| 2239 | *
|
|---|
| 2240 | * @returns VBox status code.
|
|---|
| 2241 | * @param pVM VM handle.
|
|---|
| 2242 | * @param cbSize Allocation size.
|
|---|
| 2243 | * @param pv Ring-3 pointer. (out)
|
|---|
| 2244 | */
|
|---|
| 2245 | VMMR3DECL(int) PDMR3VMMDevHeapAlloc(PVM pVM, unsigned cbSize, RTR3PTR *ppv)
|
|---|
| 2246 | {
|
|---|
| 2247 | #ifdef DEBUG_bird
|
|---|
| 2248 | if (!cbSize || cbSize > pVM->pdm.s.cbVMMDevHeapLeft)
|
|---|
| 2249 | return VERR_NO_MEMORY;
|
|---|
| 2250 | #else
|
|---|
| 2251 | AssertReturn(cbSize && cbSize <= pVM->pdm.s.cbVMMDevHeapLeft, VERR_NO_MEMORY);
|
|---|
| 2252 | #endif
|
|---|
| 2253 |
|
|---|
| 2254 | Log(("PDMR3VMMDevHeapAlloc %x\n", cbSize));
|
|---|
| 2255 |
|
|---|
| 2256 | /** @todo not a real heap as there's currently only one user. */
|
|---|
| 2257 | *ppv = pVM->pdm.s.pvVMMDevHeap;
|
|---|
| 2258 | pVM->pdm.s.cbVMMDevHeapLeft = 0;
|
|---|
| 2259 | return VINF_SUCCESS;
|
|---|
| 2260 | }
|
|---|
| 2261 |
|
|---|
| 2262 |
|
|---|
| 2263 | /**
|
|---|
| 2264 | * Frees memory from the VMM device heap
|
|---|
| 2265 | *
|
|---|
| 2266 | * @returns VBox status code.
|
|---|
| 2267 | * @param pVM VM handle.
|
|---|
| 2268 | * @param pv Ring-3 pointer.
|
|---|
| 2269 | */
|
|---|
| 2270 | VMMR3DECL(int) PDMR3VMMDevHeapFree(PVM pVM, RTR3PTR pv)
|
|---|
| 2271 | {
|
|---|
| 2272 | Log(("PDMR3VMMDevHeapFree %RHv\n", pv));
|
|---|
| 2273 |
|
|---|
| 2274 | /** @todo not a real heap as there's currently only one user. */
|
|---|
| 2275 | pVM->pdm.s.cbVMMDevHeapLeft = pVM->pdm.s.cbVMMDevHeap;
|
|---|
| 2276 | return VINF_SUCCESS;
|
|---|
| 2277 | }
|
|---|
| 2278 |
|
|---|
