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+/* $Id: PDMInternal.h $ */
+/** @file
+ * PDM - Internal header file.
+ */
+
+/*
+ * Copyright (C) 2006-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ */
+
+#ifndef VMM_INCLUDED_SRC_include_PDMInternal_h
+#define VMM_INCLUDED_SRC_include_PDMInternal_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <VBox/types.h>
+#include <VBox/param.h>
+#include <VBox/vmm/cfgm.h>
+#include <VBox/vmm/stam.h>
+#include <VBox/vusb.h>
+#include <VBox/vmm/pdmasynccompletion.h>
+#ifdef VBOX_WITH_NETSHAPER
+# include <VBox/vmm/pdmnetshaper.h>
+#endif
+#ifdef VBOX_WITH_PDM_ASYNC_COMPLETION
+# include <VBox/vmm/pdmasynccompletion.h>
+#endif
+#include <VBox/vmm/pdmblkcache.h>
+#include <VBox/vmm/pdmcommon.h>
+#include <VBox/sup.h>
+#include <iprt/assert.h>
+#include <iprt/critsect.h>
+#ifdef IN_RING3
+# include <iprt/thread.h>
+#endif
+
+RT_C_DECLS_BEGIN
+
+
+/** @defgroup grp_pdm_int Internal
+ * @ingroup grp_pdm
+ * @internal
+ * @{
+ */
+
+/** @def PDM_WITH_R3R0_CRIT_SECT
+ * Enables or disabled ring-3/ring-0 critical sections. */
+#if defined(DOXYGEN_RUNNING) || 1
+# define PDM_WITH_R3R0_CRIT_SECT
+#endif
+
+/** @def PDMCRITSECT_STRICT
+ * Enables/disables PDM critsect strictness like deadlock detection. */
+#if (defined(RT_LOCK_STRICT) && defined(IN_RING3) && !defined(PDMCRITSECT_STRICT)) \
+ || defined(DOXYGEN_RUNNING)
+# define PDMCRITSECT_STRICT
+#endif
+
+/** @def PDMCRITSECT_STRICT
+ * Enables/disables PDM read/write critsect strictness like deadlock
+ * detection. */
+#if (defined(RT_LOCK_STRICT) && defined(IN_RING3) && !defined(PDMCRITSECTRW_STRICT)) \
+ || defined(DOXYGEN_RUNNING)
+# define PDMCRITSECTRW_STRICT
+#endif
+
+
+/*******************************************************************************
+* Structures and Typedefs *
+*******************************************************************************/
+
+/** Pointer to a PDM Device. */
+typedef struct PDMDEV *PPDMDEV;
+/** Pointer to a pointer to a PDM Device. */
+typedef PPDMDEV *PPPDMDEV;
+
+/** Pointer to a PDM USB Device. */
+typedef struct PDMUSB *PPDMUSB;
+/** Pointer to a pointer to a PDM USB Device. */
+typedef PPDMUSB *PPPDMUSB;
+
+/** Pointer to a PDM Driver. */
+typedef struct PDMDRV *PPDMDRV;
+/** Pointer to a pointer to a PDM Driver. */
+typedef PPDMDRV *PPPDMDRV;
+
+/** Pointer to a PDM Logical Unit. */
+typedef struct PDMLUN *PPDMLUN;
+/** Pointer to a pointer to a PDM Logical Unit. */
+typedef PPDMLUN *PPPDMLUN;
+
+/** Pointer to a PDM PCI Bus instance. */
+typedef struct PDMPCIBUS *PPDMPCIBUS;
+/** Pointer to a DMAC instance. */
+typedef struct PDMDMAC *PPDMDMAC;
+/** Pointer to a RTC instance. */
+typedef struct PDMRTC *PPDMRTC;
+
+/** Pointer to an USB HUB registration record. */
+typedef struct PDMUSBHUB *PPDMUSBHUB;
+
+/**
+ * Supported asynchronous completion endpoint classes.
+ */
+typedef enum PDMASYNCCOMPLETIONEPCLASSTYPE
+{
+ /** File class. */
+ PDMASYNCCOMPLETIONEPCLASSTYPE_FILE = 0,
+ /** Number of supported classes. */
+ PDMASYNCCOMPLETIONEPCLASSTYPE_MAX,
+ /** 32bit hack. */
+ PDMASYNCCOMPLETIONEPCLASSTYPE_32BIT_HACK = 0x7fffffff
+} PDMASYNCCOMPLETIONEPCLASSTYPE;
+
+/**
+ * Private device instance data.
+ */
+typedef struct PDMDEVINSINT
+{
+ /** Pointer to the next instance (HC Ptr).
+ * (Head is pointed to by PDM::pDevInstances.) */
+ R3PTRTYPE(PPDMDEVINS) pNextR3;
+ /** Pointer to the next per device instance (HC Ptr).
+ * (Head is pointed to by PDMDEV::pInstances.) */
+ R3PTRTYPE(PPDMDEVINS) pPerDeviceNextR3;
+ /** Pointer to device structure - HC Ptr. */
+ R3PTRTYPE(PPDMDEV) pDevR3;
+ /** Pointer to the list of logical units associated with the device. (FIFO) */
+ R3PTRTYPE(PPDMLUN) pLunsR3;
+ /** Pointer to the asynchronous notification callback set while in
+ * FNPDMDEVSUSPEND or FNPDMDEVPOWEROFF. */
+ R3PTRTYPE(PFNPDMDEVASYNCNOTIFY) pfnAsyncNotify;
+ /** Configuration handle to the instance node. */
+ R3PTRTYPE(PCFGMNODE) pCfgHandle;
+
+ /** R3 pointer to the VM this instance was created for. */
+ PVMR3 pVMR3;
+ /** Associated PCI device list head (first is default). (R3 ptr) */
+ R3PTRTYPE(PPDMPCIDEV) pHeadPciDevR3;
+
+ /** R0 pointer to the VM this instance was created for. */
+ PVMR0 pVMR0;
+ /** Associated PCI device list head (first is default). (R0 ptr) */
+ R0PTRTYPE(PPDMPCIDEV) pHeadPciDevR0;
+
+ /** RC pointer to the VM this instance was created for. */
+ PVMRC pVMRC;
+ /** Associated PCI device list head (first is default). (RC ptr) */
+ RCPTRTYPE(PPDMPCIDEV) pHeadPciDevRC;
+
+ /** Flags, see PDMDEVINSINT_FLAGS_XXX. */
+ uint32_t fIntFlags;
+ /** The last IRQ tag (for tracing it thru clearing). */
+ uint32_t uLastIrqTag;
+} PDMDEVINSINT;
+
+/** @name PDMDEVINSINT::fIntFlags
+ * @{ */
+/** Used by pdmR3Load to mark device instances it found in the saved state. */
+#define PDMDEVINSINT_FLAGS_FOUND RT_BIT_32(0)
+/** Indicates that the device hasn't been powered on or resumed.
+ * This is used by PDMR3PowerOn, PDMR3Resume, PDMR3Suspend and PDMR3PowerOff
+ * to make sure each device gets exactly one notification for each of those
+ * events. PDMR3Resume and PDMR3PowerOn also makes use of it to bail out on
+ * a failure (already resumed/powered-on devices are suspended).
+ * PDMR3PowerOff resets this flag once before going through the devices to make sure
+ * every device gets the power off notification even if it was suspended before with
+ * PDMR3Suspend.
+ */
+#define PDMDEVINSINT_FLAGS_SUSPENDED RT_BIT_32(1)
+/** Indicates that the device has been reset already. Used by PDMR3Reset. */
+#define PDMDEVINSINT_FLAGS_RESET RT_BIT_32(2)
+/** @} */
+
+
+/**
+ * Private USB device instance data.
+ */
+typedef struct PDMUSBINSINT
+{
+ /** The UUID of this instance. */
+ RTUUID Uuid;
+ /** Pointer to the next instance.
+ * (Head is pointed to by PDM::pUsbInstances.) */
+ R3PTRTYPE(PPDMUSBINS) pNext;
+ /** Pointer to the next per USB device instance.
+ * (Head is pointed to by PDMUSB::pInstances.) */
+ R3PTRTYPE(PPDMUSBINS) pPerDeviceNext;
+
+ /** Pointer to device structure. */
+ R3PTRTYPE(PPDMUSB) pUsbDev;
+
+ /** Pointer to the VM this instance was created for. */
+ PVMR3 pVM;
+ /** Pointer to the list of logical units associated with the device. (FIFO) */
+ R3PTRTYPE(PPDMLUN) pLuns;
+ /** The per instance device configuration. */
+ R3PTRTYPE(PCFGMNODE) pCfg;
+ /** Same as pCfg if the configuration should be deleted when detaching the device. */
+ R3PTRTYPE(PCFGMNODE) pCfgDelete;
+ /** The global device configuration. */
+ R3PTRTYPE(PCFGMNODE) pCfgGlobal;
+
+ /** Pointer to the USB hub this device is attached to.
+ * This is NULL if the device isn't connected to any HUB. */
+ R3PTRTYPE(PPDMUSBHUB) pHub;
+ /** The port number that we're connected to. */
+ uint32_t iPort;
+ /** Indicates that the USB device hasn't been powered on or resumed.
+ * See PDMDEVINSINT_FLAGS_SUSPENDED. */
+ bool fVMSuspended;
+ /** Indicates that the USB device has been reset. */
+ bool fVMReset;
+ /** Pointer to the asynchronous notification callback set while in
+ * FNPDMDEVSUSPEND or FNPDMDEVPOWEROFF. */
+ R3PTRTYPE(PFNPDMUSBASYNCNOTIFY) pfnAsyncNotify;
+} PDMUSBINSINT;
+
+
+/**
+ * Private driver instance data.
+ */
+typedef struct PDMDRVINSINT
+{
+ /** Pointer to the driver instance above.
+ * This is NULL for the topmost drive. */
+ R3PTRTYPE(PPDMDRVINS) pUp;
+ /** Pointer to the driver instance below.
+ * This is NULL for the bottommost driver. */
+ R3PTRTYPE(PPDMDRVINS) pDown;
+ /** Pointer to the logical unit this driver chained on. */
+ R3PTRTYPE(PPDMLUN) pLun;
+ /** Pointer to driver structure from which this was instantiated. */
+ R3PTRTYPE(PPDMDRV) pDrv;
+ /** Pointer to the VM this instance was created for, ring-3 context. */
+ PVMR3 pVMR3;
+ /** Pointer to the VM this instance was created for, ring-0 context. */
+ PVMR0 pVMR0;
+ /** Pointer to the VM this instance was created for, raw-mode context. */
+ PVMRC pVMRC;
+ /** Flag indicating that the driver is being detached and destroyed.
+ * (Helps detect potential recursive detaching.) */
+ bool fDetaching;
+ /** Indicates that the driver hasn't been powered on or resumed.
+ * See PDMDEVINSINT_FLAGS_SUSPENDED. */
+ bool fVMSuspended;
+ /** Indicates that the driver has been reset already. */
+ bool fVMReset;
+ /** Set if allocated on the hyper heap, false if on the ring-3 heap. */
+ bool fHyperHeap;
+ /** Pointer to the asynchronous notification callback set while in
+ * PDMUSBREG::pfnVMSuspend or PDMUSBREG::pfnVMPowerOff. */
+ R3PTRTYPE(PFNPDMDRVASYNCNOTIFY) pfnAsyncNotify;
+ /** Configuration handle to the instance node. */
+ R3PTRTYPE(PCFGMNODE) pCfgHandle;
+ /** Pointer to the ring-0 request handler function. */
+ PFNPDMDRVREQHANDLERR0 pfnReqHandlerR0;
+} PDMDRVINSINT;
+
+
+/**
+ * Private critical section data.
+ */
+typedef struct PDMCRITSECTINT
+{
+ /** The critical section core which is shared with IPRT.
+ * @note The semaphore is a SUPSEMEVENT. */
+ RTCRITSECT Core;
+ /** Pointer to the next critical section.
+ * This chain is used for relocating pVMRC and device cleanup. */
+ R3PTRTYPE(struct PDMCRITSECTINT *) pNext;
+ /** Owner identifier.
+ * This is pDevIns if the owner is a device. Similarly for a driver or service.
+ * PDMR3CritSectInit() sets this to point to the critsect itself. */
+ RTR3PTR pvKey;
+ /** Pointer to the VM - R3Ptr. */
+ PVMR3 pVMR3;
+ /** Pointer to the VM - R0Ptr. */
+ PVMR0 pVMR0;
+ /** Pointer to the VM - GCPtr. */
+ PVMRC pVMRC;
+ /** Set if this critical section is the automatically created default
+ * section of a device. */
+ bool fAutomaticDefaultCritsect;
+ /** Set if the critical section is used by a timer or similar.
+ * See PDMR3DevGetCritSect. */
+ bool fUsedByTimerOrSimilar;
+ /** Alignment padding. */
+ bool afPadding[2];
+ /** Support driver event semaphore that is scheduled to be signaled upon leaving
+ * the critical section. This is only for Ring-3 and Ring-0. */
+ SUPSEMEVENT hEventToSignal;
+ /** The lock name. */
+ R3PTRTYPE(const char *) pszName;
+ /** R0/RC lock contention. */
+ STAMCOUNTER StatContentionRZLock;
+ /** R0/RC unlock contention. */
+ STAMCOUNTER StatContentionRZUnlock;
+ /** R3 lock contention. */
+ STAMCOUNTER StatContentionR3;
+ /** Profiling the time the section is locked. */
+ STAMPROFILEADV StatLocked;
+} PDMCRITSECTINT;
+AssertCompileMemberAlignment(PDMCRITSECTINT, StatContentionRZLock, 8);
+/** Pointer to private critical section data. */
+typedef PDMCRITSECTINT *PPDMCRITSECTINT;
+
+/** Indicates that the critical section is queued for unlock.
+ * PDMCritSectIsOwner and PDMCritSectIsOwned optimizations. */
+#define PDMCRITSECT_FLAGS_PENDING_UNLOCK RT_BIT_32(17)
+
+
+/**
+ * Private critical section data.
+ */
+typedef struct PDMCRITSECTRWINT
+{
+ /** The read/write critical section core which is shared with IPRT.
+ * @note The semaphores are SUPSEMEVENT and SUPSEMEVENTMULTI. */
+ RTCRITSECTRW Core;
+
+ /** Pointer to the next critical section.
+ * This chain is used for relocating pVMRC and device cleanup. */
+ R3PTRTYPE(struct PDMCRITSECTRWINT *) pNext;
+ /** Owner identifier.
+ * This is pDevIns if the owner is a device. Similarly for a driver or service.
+ * PDMR3CritSectInit() sets this to point to the critsect itself. */
+ RTR3PTR pvKey;
+ /** Pointer to the VM - R3Ptr. */
+ PVMR3 pVMR3;
+ /** Pointer to the VM - R0Ptr. */
+ PVMR0 pVMR0;
+ /** Pointer to the VM - GCPtr. */
+ PVMRC pVMRC;
+#if HC_ARCH_BITS == 64
+ /** Alignment padding. */
+ RTRCPTR RCPtrPadding;
+#endif
+ /** The lock name. */
+ R3PTRTYPE(const char *) pszName;
+ /** R0/RC write lock contention. */
+ STAMCOUNTER StatContentionRZEnterExcl;
+ /** R0/RC write unlock contention. */
+ STAMCOUNTER StatContentionRZLeaveExcl;
+ /** R0/RC read lock contention. */
+ STAMCOUNTER StatContentionRZEnterShared;
+ /** R0/RC read unlock contention. */
+ STAMCOUNTER StatContentionRZLeaveShared;
+ /** R0/RC writes. */
+ STAMCOUNTER StatRZEnterExcl;
+ /** R0/RC reads. */
+ STAMCOUNTER StatRZEnterShared;
+ /** R3 write lock contention. */
+ STAMCOUNTER StatContentionR3EnterExcl;
+ /** R3 read lock contention. */
+ STAMCOUNTER StatContentionR3EnterShared;
+ /** R3 writes. */
+ STAMCOUNTER StatR3EnterExcl;
+ /** R3 reads. */
+ STAMCOUNTER StatR3EnterShared;
+ /** Profiling the time the section is write locked. */
+ STAMPROFILEADV StatWriteLocked;
+} PDMCRITSECTRWINT;
+AssertCompileMemberAlignment(PDMCRITSECTRWINT, StatContentionRZEnterExcl, 8);
+AssertCompileMemberAlignment(PDMCRITSECTRWINT, Core.u64State, 8);
+/** Pointer to private critical section data. */
+typedef PDMCRITSECTRWINT *PPDMCRITSECTRWINT;
+
+
+
+/**
+ * The usual device/driver/internal/external stuff.
+ */
+typedef enum
+{
+ /** The usual invalid entry. */
+ PDMTHREADTYPE_INVALID = 0,
+ /** Device type. */
+ PDMTHREADTYPE_DEVICE,
+ /** USB Device type. */
+ PDMTHREADTYPE_USB,
+ /** Driver type. */
+ PDMTHREADTYPE_DRIVER,
+ /** Internal type. */
+ PDMTHREADTYPE_INTERNAL,
+ /** External type. */
+ PDMTHREADTYPE_EXTERNAL,
+ /** The usual 32-bit hack. */
+ PDMTHREADTYPE_32BIT_HACK = 0x7fffffff
+} PDMTHREADTYPE;
+
+
+/**
+ * The internal structure for the thread.
+ */
+typedef struct PDMTHREADINT
+{
+ /** The VM pointer. */
+ PVMR3 pVM;
+ /** The event semaphore the thread blocks on when not running. */
+ RTSEMEVENTMULTI BlockEvent;
+ /** The event semaphore the thread sleeps on while running. */
+ RTSEMEVENTMULTI SleepEvent;
+ /** Pointer to the next thread. */
+ R3PTRTYPE(struct PDMTHREAD *) pNext;
+ /** The thread type. */
+ PDMTHREADTYPE enmType;
+} PDMTHREADINT;
+
+
+
+/* Must be included after PDMDEVINSINT is defined. */
+#define PDMDEVINSINT_DECLARED
+#define PDMUSBINSINT_DECLARED
+#define PDMDRVINSINT_DECLARED
+#define PDMCRITSECTINT_DECLARED
+#define PDMCRITSECTRWINT_DECLARED
+#define PDMTHREADINT_DECLARED
+#ifdef ___VBox_pdm_h
+# error "Invalid header PDM order. Include PDMInternal.h before VBox/vmm/pdm.h!"
+#endif
+RT_C_DECLS_END
+#include <VBox/vmm/pdm.h>
+RT_C_DECLS_BEGIN
+
+/**
+ * PDM Logical Unit.
+ *
+ * This typically the representation of a physical port on a
+ * device, like for instance the PS/2 keyboard port on the
+ * keyboard controller device. The LUNs are chained on the
+ * device the belong to (PDMDEVINSINT::pLunsR3).
+ */
+typedef struct PDMLUN
+{
+ /** The LUN - The Logical Unit Number. */
+ RTUINT iLun;
+ /** Pointer to the next LUN. */
+ PPDMLUN pNext;
+ /** Pointer to the top driver in the driver chain. */
+ PPDMDRVINS pTop;
+ /** Pointer to the bottom driver in the driver chain. */
+ PPDMDRVINS pBottom;
+ /** Pointer to the device instance which the LUN belongs to.
+ * Either this is set or pUsbIns is set. Both is never set at the same time. */
+ PPDMDEVINS pDevIns;
+ /** Pointer to the USB device instance which the LUN belongs to. */
+ PPDMUSBINS pUsbIns;
+ /** Pointer to the device base interface. */
+ PPDMIBASE pBase;
+ /** Description of this LUN. */
+ const char *pszDesc;
+} PDMLUN;
+
+
+/**
+ * PDM Device.
+ */
+typedef struct PDMDEV
+{
+ /** Pointer to the next device (R3 Ptr). */
+ R3PTRTYPE(PPDMDEV) pNext;
+ /** Device name length. (search optimization) */
+ RTUINT cchName;
+ /** Registration structure. */
+ R3PTRTYPE(const struct PDMDEVREG *) pReg;
+ /** Number of instances. */
+ uint32_t cInstances;
+ /** Pointer to chain of instances (R3 Ptr). */
+ PPDMDEVINSR3 pInstances;
+ /** The search path for raw-mode context modules (';' as separator). */
+ char *pszRCSearchPath;
+ /** The search path for ring-0 context modules (';' as separator). */
+ char *pszR0SearchPath;
+} PDMDEV;
+
+
+/**
+ * PDM USB Device.
+ */
+typedef struct PDMUSB
+{
+ /** Pointer to the next device (R3 Ptr). */
+ R3PTRTYPE(PPDMUSB) pNext;
+ /** Device name length. (search optimization) */
+ RTUINT cchName;
+ /** Registration structure. */
+ R3PTRTYPE(const struct PDMUSBREG *) pReg;
+ /** Next instance number. */
+ uint32_t iNextInstance;
+ /** Pointer to chain of instances (R3 Ptr). */
+ R3PTRTYPE(PPDMUSBINS) pInstances;
+} PDMUSB;
+
+
+/**
+ * PDM Driver.
+ */
+typedef struct PDMDRV
+{
+ /** Pointer to the next device. */
+ PPDMDRV pNext;
+ /** Registration structure. */
+ const struct PDMDRVREG * pReg;
+ /** Current number of instances. */
+ uint32_t cInstances;
+ /** The next instance number. */
+ uint32_t iNextInstance;
+ /** The search path for raw-mode context modules (';' as separator). */
+ char *pszRCSearchPath;
+ /** The search path for ring-0 context modules (';' as separator). */
+ char *pszR0SearchPath;
+} PDMDRV;
+
+
+/**
+ * PDM registered PIC device.
+ */
+typedef struct PDMPIC
+{
+ /** Pointer to the PIC device instance - R3. */
+ PPDMDEVINSR3 pDevInsR3;
+ /** @copydoc PDMPICREG::pfnSetIrqR3 */
+ DECLR3CALLBACKMEMBER(void, pfnSetIrqR3,(PPDMDEVINS pDevIns, int iIrq, int iLevel, uint32_t uTagSrc));
+ /** @copydoc PDMPICREG::pfnGetInterruptR3 */
+ DECLR3CALLBACKMEMBER(int, pfnGetInterruptR3,(PPDMDEVINS pDevIns, uint32_t *puTagSrc));
+
+ /** Pointer to the PIC device instance - R0. */
+ PPDMDEVINSR0 pDevInsR0;
+ /** @copydoc PDMPICREG::pfnSetIrqR3 */
+ DECLR0CALLBACKMEMBER(void, pfnSetIrqR0,(PPDMDEVINS pDevIns, int iIrq, int iLevel, uint32_t uTagSrc));
+ /** @copydoc PDMPICREG::pfnGetInterruptR3 */
+ DECLR0CALLBACKMEMBER(int, pfnGetInterruptR0,(PPDMDEVINS pDevIns, uint32_t *puTagSrc));
+
+ /** Pointer to the PIC device instance - RC. */
+ PPDMDEVINSRC pDevInsRC;
+ /** @copydoc PDMPICREG::pfnSetIrqR3 */
+ DECLRCCALLBACKMEMBER(void, pfnSetIrqRC,(PPDMDEVINS pDevIns, int iIrq, int iLevel, uint32_t uTagSrc));
+ /** @copydoc PDMPICREG::pfnGetInterruptR3 */
+ DECLRCCALLBACKMEMBER(int, pfnGetInterruptRC,(PPDMDEVINS pDevIns, uint32_t *puTagSrc));
+ /** Alignment padding. */
+ RTRCPTR RCPtrPadding;
+} PDMPIC;
+
+
+/**
+ * PDM registered APIC device.
+ */
+typedef struct PDMAPIC
+{
+ /** Pointer to the APIC device instance - R3 Ptr. */
+ PPDMDEVINSR3 pDevInsR3;
+ /** Pointer to the APIC device instance - R0 Ptr. */
+ PPDMDEVINSR0 pDevInsR0;
+ /** Pointer to the APIC device instance - RC Ptr. */
+ PPDMDEVINSRC pDevInsRC;
+ uint8_t Alignment[4];
+} PDMAPIC;
+
+
+/**
+ * PDM registered I/O APIC device.
+ */
+typedef struct PDMIOAPIC
+{
+ /** Pointer to the APIC device instance - R3 Ptr. */
+ PPDMDEVINSR3 pDevInsR3;
+ /** @copydoc PDMIOAPICREG::pfnSetIrqR3 */
+ DECLR3CALLBACKMEMBER(void, pfnSetIrqR3,(PPDMDEVINS pDevIns, int iIrq, int iLevel, uint32_t uTagSrc));
+ /** @copydoc PDMIOAPICREG::pfnSendMsiR3 */
+ DECLR3CALLBACKMEMBER(void, pfnSendMsiR3,(PPDMDEVINS pDevIns, RTGCPHYS GCAddr, uint32_t uValue, uint32_t uTagSrc));
+ /** @copydoc PDMIOAPICREG::pfnSetEoiR3 */
+ DECLR3CALLBACKMEMBER(int, pfnSetEoiR3,(PPDMDEVINS pDevIns, uint8_t u8Vector));
+
+ /** Pointer to the PIC device instance - R0. */
+ PPDMDEVINSR0 pDevInsR0;
+ /** @copydoc PDMIOAPICREG::pfnSetIrqR3 */
+ DECLR0CALLBACKMEMBER(void, pfnSetIrqR0,(PPDMDEVINS pDevIns, int iIrq, int iLevel, uint32_t uTagSrc));
+ /** @copydoc PDMIOAPICREG::pfnSendMsiR3 */
+ DECLR0CALLBACKMEMBER(void, pfnSendMsiR0,(PPDMDEVINS pDevIns, RTGCPHYS GCAddr, uint32_t uValue, uint32_t uTagSrc));
+ /** @copydoc PDMIOAPICREG::pfnSetEoiR3 */
+ DECLR0CALLBACKMEMBER(int, pfnSetEoiR0,(PPDMDEVINS pDevIns, uint8_t u8Vector));
+
+ /** Pointer to the APIC device instance - RC Ptr. */
+ PPDMDEVINSRC pDevInsRC;
+ /** @copydoc PDMIOAPICREG::pfnSetIrqR3 */
+ DECLRCCALLBACKMEMBER(void, pfnSetIrqRC,(PPDMDEVINS pDevIns, int iIrq, int iLevel, uint32_t uTagSrc));
+ /** @copydoc PDMIOAPICREG::pfnSendMsiR3 */
+ DECLRCCALLBACKMEMBER(void, pfnSendMsiRC,(PPDMDEVINS pDevIns, RTGCPHYS GCAddr, uint32_t uValue, uint32_t uTagSrc));
+ /** @copydoc PDMIOAPICREG::pfnSendMsiR3 */
+ DECLRCCALLBACKMEMBER(int, pfnSetEoiRC,(PPDMDEVINS pDevIns, uint8_t u8Vector));
+} PDMIOAPIC;
+
+/** Maximum number of PCI busses for a VM. */
+#define PDM_PCI_BUSSES_MAX 8
+
+
+#ifdef IN_RING3
+/**
+ * PDM registered firmware device.
+ */
+typedef struct PDMFW
+{
+ /** Pointer to the firmware device instance. */
+ PPDMDEVINSR3 pDevIns;
+ /** Copy of the registration structure. */
+ PDMFWREG Reg;
+} PDMFW;
+/** Pointer to a firmware instance. */
+typedef PDMFW *PPDMFW;
+#endif
+
+
+/**
+ * PDM PCI Bus instance.
+ */
+typedef struct PDMPCIBUS
+{
+ /** PCI bus number. */
+ RTUINT iBus;
+ RTUINT uPadding0; /**< Alignment padding.*/
+
+ /** Pointer to PCI Bus device instance. */
+ PPDMDEVINSR3 pDevInsR3;
+ /** @copydoc PDMPCIBUSREG::pfnSetIrqR3 */
+ DECLR3CALLBACKMEMBER(void, pfnSetIrqR3,(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, int iIrq, int iLevel, uint32_t uTagSrc));
+ /** @copydoc PDMPCIBUSREG::pfnRegisterR3 */
+ DECLR3CALLBACKMEMBER(int, pfnRegisterR3,(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, uint32_t fFlags,
+ uint8_t uPciDevNo, uint8_t uPciFunNo, const char *pszName));
+ /** @copydoc PDMPCIBUSREG::pfnRegisterMsiR3 */
+ DECLR3CALLBACKMEMBER(int, pfnRegisterMsiR3,(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, PPDMMSIREG pMsiReg));
+ /** @copydoc PDMPCIBUSREG::pfnIORegionRegisterR3 */
+ DECLR3CALLBACKMEMBER(int, pfnIORegionRegisterR3,(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, int iRegion, RTGCPHYS cbRegion,
+ PCIADDRESSSPACE enmType, PFNPCIIOREGIONMAP pfnCallback));
+ /** @copydoc PDMPCIBUSREG::pfnSetConfigCallbacksR3 */
+ DECLR3CALLBACKMEMBER(void, pfnSetConfigCallbacksR3,(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, PFNPCICONFIGREAD pfnRead,
+ PPFNPCICONFIGREAD ppfnReadOld, PFNPCICONFIGWRITE pfnWrite, PPFNPCICONFIGWRITE ppfnWriteOld));
+
+ /** Pointer to the PIC device instance - R0. */
+ R0PTRTYPE(PPDMDEVINS) pDevInsR0;
+ /** @copydoc PDMPCIBUSREG::pfnSetIrqR3 */
+ DECLR0CALLBACKMEMBER(void, pfnSetIrqR0,(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, int iIrq, int iLevel, uint32_t uTagSrc));
+
+ /** Pointer to PCI Bus device instance. */
+ PPDMDEVINSRC pDevInsRC;
+ /** @copydoc PDMPCIBUSREG::pfnSetIrqR3 */
+ DECLRCCALLBACKMEMBER(void, pfnSetIrqRC,(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, int iIrq, int iLevel, uint32_t uTagSrc));
+} PDMPCIBUS;
+
+
+#ifdef IN_RING3
+/**
+ * PDM registered DMAC (DMA Controller) device.
+ */
+typedef struct PDMDMAC
+{
+ /** Pointer to the DMAC device instance. */
+ PPDMDEVINSR3 pDevIns;
+ /** Copy of the registration structure. */
+ PDMDMACREG Reg;
+} PDMDMAC;
+
+
+/**
+ * PDM registered RTC (Real Time Clock) device.
+ */
+typedef struct PDMRTC
+{
+ /** Pointer to the RTC device instance. */
+ PPDMDEVINSR3 pDevIns;
+ /** Copy of the registration structure. */
+ PDMRTCREG Reg;
+} PDMRTC;
+
+#endif /* IN_RING3 */
+
+/**
+ * Module type.
+ */
+typedef enum PDMMODTYPE
+{
+ /** Raw-mode (RC) context module. */
+ PDMMOD_TYPE_RC,
+ /** Ring-0 (host) context module. */
+ PDMMOD_TYPE_R0,
+ /** Ring-3 (host) context module. */
+ PDMMOD_TYPE_R3
+} PDMMODTYPE;
+
+
+/** The module name length including the terminator. */
+#define PDMMOD_NAME_LEN 32
+
+/**
+ * Loaded module instance.
+ */
+typedef struct PDMMOD
+{
+ /** Module name. This is used for referring to
+ * the module internally, sort of like a handle. */
+ char szName[PDMMOD_NAME_LEN];
+ /** Module type. */
+ PDMMODTYPE eType;
+ /** Loader module handle. Not used for R0 modules. */
+ RTLDRMOD hLdrMod;
+ /** Loaded address.
+ * This is the 'handle' for R0 modules. */
+ RTUINTPTR ImageBase;
+ /** Old loaded address.
+ * This is used during relocation of GC modules. Not used for R0 modules. */
+ RTUINTPTR OldImageBase;
+ /** Where the R3 HC bits are stored.
+ * This can be equal to ImageBase but doesn't have to. Not used for R0 modules. */
+ void *pvBits;
+
+ /** Pointer to next module. */
+ struct PDMMOD *pNext;
+ /** Module filename. */
+ char szFilename[1];
+} PDMMOD;
+/** Pointer to loaded module instance. */
+typedef PDMMOD *PPDMMOD;
+
+
+
+/** Extra space in the free array. */
+#define PDMQUEUE_FREE_SLACK 16
+
+/**
+ * Queue type.
+ */
+typedef enum PDMQUEUETYPE
+{
+ /** Device consumer. */
+ PDMQUEUETYPE_DEV = 1,
+ /** Driver consumer. */
+ PDMQUEUETYPE_DRV,
+ /** Internal consumer. */
+ PDMQUEUETYPE_INTERNAL,
+ /** External consumer. */
+ PDMQUEUETYPE_EXTERNAL
+} PDMQUEUETYPE;
+
+/** Pointer to a PDM Queue. */
+typedef struct PDMQUEUE *PPDMQUEUE;
+
+/**
+ * PDM Queue.
+ */
+typedef struct PDMQUEUE
+{
+ /** Pointer to the next queue in the list. */
+ R3PTRTYPE(PPDMQUEUE) pNext;
+ /** Type specific data. */
+ union
+ {
+ /** PDMQUEUETYPE_DEV */
+ struct
+ {
+ /** Pointer to consumer function. */
+ R3PTRTYPE(PFNPDMQUEUEDEV) pfnCallback;
+ /** Pointer to the device instance owning the queue. */
+ R3PTRTYPE(PPDMDEVINS) pDevIns;
+ } Dev;
+ /** PDMQUEUETYPE_DRV */
+ struct
+ {
+ /** Pointer to consumer function. */
+ R3PTRTYPE(PFNPDMQUEUEDRV) pfnCallback;
+ /** Pointer to the driver instance owning the queue. */
+ R3PTRTYPE(PPDMDRVINS) pDrvIns;
+ } Drv;
+ /** PDMQUEUETYPE_INTERNAL */
+ struct
+ {
+ /** Pointer to consumer function. */
+ R3PTRTYPE(PFNPDMQUEUEINT) pfnCallback;
+ } Int;
+ /** PDMQUEUETYPE_EXTERNAL */
+ struct
+ {
+ /** Pointer to consumer function. */
+ R3PTRTYPE(PFNPDMQUEUEEXT) pfnCallback;
+ /** Pointer to user argument. */
+ R3PTRTYPE(void *) pvUser;
+ } Ext;
+ } u;
+ /** Queue type. */
+ PDMQUEUETYPE enmType;
+ /** The interval between checking the queue for events.
+ * The realtime timer below is used to do the waiting.
+ * If 0, the queue will use the VM_FF_PDM_QUEUE forced action. */
+ uint32_t cMilliesInterval;
+ /** Interval timer. Only used if cMilliesInterval is non-zero. */
+ PTMTIMERR3 pTimer;
+ /** Pointer to the VM - R3. */
+ PVMR3 pVMR3;
+ /** LIFO of pending items - R3. */
+ R3PTRTYPE(PPDMQUEUEITEMCORE) volatile pPendingR3;
+ /** Pointer to the VM - R0. */
+ PVMR0 pVMR0;
+ /** LIFO of pending items - R0. */
+ R0PTRTYPE(PPDMQUEUEITEMCORE) volatile pPendingR0;
+ /** Pointer to the GC VM and indicator for GC enabled queue.
+ * If this is NULL, the queue cannot be used in GC.
+ */
+ PVMRC pVMRC;
+ /** LIFO of pending items - GC. */
+ RCPTRTYPE(PPDMQUEUEITEMCORE) volatile pPendingRC;
+
+ /** Item size (bytes). */
+ uint32_t cbItem;
+ /** Number of items in the queue. */
+ uint32_t cItems;
+ /** Index to the free head (where we insert). */
+ uint32_t volatile iFreeHead;
+ /** Index to the free tail (where we remove). */
+ uint32_t volatile iFreeTail;
+
+ /** Unique queue name. */
+ R3PTRTYPE(const char *) pszName;
+#if HC_ARCH_BITS == 32
+ RTR3PTR Alignment1;
+#endif
+ /** Stat: Times PDMQueueAlloc fails. */
+ STAMCOUNTER StatAllocFailures;
+ /** Stat: PDMQueueInsert calls. */
+ STAMCOUNTER StatInsert;
+ /** Stat: Queue flushes. */
+ STAMCOUNTER StatFlush;
+ /** Stat: Queue flushes with pending items left over. */
+ STAMCOUNTER StatFlushLeftovers;
+#ifdef VBOX_WITH_STATISTICS
+ /** State: Profiling the flushing. */
+ STAMPROFILE StatFlushPrf;
+ /** State: Pending items. */
+ uint32_t volatile cStatPending;
+ uint32_t volatile cAlignment;
+#endif
+
+ /** Array of pointers to free items. Variable size. */
+ struct PDMQUEUEFREEITEM
+ {
+ /** Pointer to the free item - HC Ptr. */
+ R3PTRTYPE(PPDMQUEUEITEMCORE) volatile pItemR3;
+ /** Pointer to the free item - HC Ptr. */
+ R0PTRTYPE(PPDMQUEUEITEMCORE) volatile pItemR0;
+ /** Pointer to the free item - GC Ptr. */
+ RCPTRTYPE(PPDMQUEUEITEMCORE) volatile pItemRC;
+#if HC_ARCH_BITS == 64
+ RTRCPTR Alignment0;
+#endif
+ } aFreeItems[1];
+} PDMQUEUE;
+
+/** @name PDM::fQueueFlushing
+ * @{ */
+/** Used to make sure only one EMT will flush the queues.
+ * Set when an EMT is flushing queues, clear otherwise. */
+#define PDM_QUEUE_FLUSH_FLAG_ACTIVE_BIT 0
+/** Indicating there are queues with items pending.
+ * This is make sure we don't miss inserts happening during flushing. The FF
+ * cannot be used for this since it has to be cleared immediately to prevent
+ * other EMTs from spinning. */
+#define PDM_QUEUE_FLUSH_FLAG_PENDING_BIT 1
+/** @} */
+
+
+/**
+ * Queue device helper task operation.
+ */
+typedef enum PDMDEVHLPTASKOP
+{
+ /** The usual invalid 0 entry. */
+ PDMDEVHLPTASKOP_INVALID = 0,
+ /** ISASetIrq */
+ PDMDEVHLPTASKOP_ISA_SET_IRQ,
+ /** PCISetIrq */
+ PDMDEVHLPTASKOP_PCI_SET_IRQ,
+ /** PCISetIrq */
+ PDMDEVHLPTASKOP_IOAPIC_SET_IRQ,
+ /** The usual 32-bit hack. */
+ PDMDEVHLPTASKOP_32BIT_HACK = 0x7fffffff
+} PDMDEVHLPTASKOP;
+
+/**
+ * Queued Device Helper Task.
+ */
+typedef struct PDMDEVHLPTASK
+{
+ /** The queue item core (don't touch). */
+ PDMQUEUEITEMCORE Core;
+ /** Pointer to the device instance (R3 Ptr). */
+ PPDMDEVINSR3 pDevInsR3;
+ /** This operation to perform. */
+ PDMDEVHLPTASKOP enmOp;
+#if HC_ARCH_BITS == 64
+ uint32_t Alignment0;
+#endif
+ /** Parameters to the operation. */
+ union PDMDEVHLPTASKPARAMS
+ {
+ /**
+ * PDMDEVHLPTASKOP_ISA_SET_IRQ and PDMDEVHLPTASKOP_IOAPIC_SET_IRQ.
+ */
+ struct PDMDEVHLPTASKISASETIRQ
+ {
+ /** The IRQ */
+ int iIrq;
+ /** The new level. */
+ int iLevel;
+ /** The IRQ tag and source. */
+ uint32_t uTagSrc;
+ } IsaSetIRQ, IoApicSetIRQ;
+
+ /**
+ * PDMDEVHLPTASKOP_PCI_SET_IRQ
+ */
+ struct PDMDEVHLPTASKPCISETIRQ
+ {
+ /** Pointer to the PCI device (R3 Ptr). */
+ R3PTRTYPE(PPDMPCIDEV) pPciDevR3;
+ /** The IRQ */
+ int iIrq;
+ /** The new level. */
+ int iLevel;
+ /** The IRQ tag and source. */
+ uint32_t uTagSrc;
+ } PciSetIRQ;
+
+ /** Expanding the structure. */
+ uint64_t au64[3];
+ } u;
+} PDMDEVHLPTASK;
+/** Pointer to a queued Device Helper Task. */
+typedef PDMDEVHLPTASK *PPDMDEVHLPTASK;
+/** Pointer to a const queued Device Helper Task. */
+typedef const PDMDEVHLPTASK *PCPDMDEVHLPTASK;
+
+
+
+/**
+ * An USB hub registration record.
+ */
+typedef struct PDMUSBHUB
+{
+ /** The USB versions this hub support.
+ * Note that 1.1 hubs can take on 2.0 devices. */
+ uint32_t fVersions;
+ /** The number of ports on the hub. */
+ uint32_t cPorts;
+ /** The number of available ports (0..cPorts). */
+ uint32_t cAvailablePorts;
+ /** The driver instance of the hub. */
+ PPDMDRVINS pDrvIns;
+ /** Copy of the to the registration structure. */
+ PDMUSBHUBREG Reg;
+
+ /** Pointer to the next hub in the list. */
+ struct PDMUSBHUB *pNext;
+} PDMUSBHUB;
+
+/** Pointer to a const USB HUB registration record. */
+typedef const PDMUSBHUB *PCPDMUSBHUB;
+
+/** Pointer to a PDM Async I/O template. */
+typedef struct PDMASYNCCOMPLETIONTEMPLATE *PPDMASYNCCOMPLETIONTEMPLATE;
+
+/** Pointer to the main PDM Async completion endpoint class. */
+typedef struct PDMASYNCCOMPLETIONEPCLASS *PPDMASYNCCOMPLETIONEPCLASS;
+
+/** Pointer to the global block cache structure. */
+typedef struct PDMBLKCACHEGLOBAL *PPDMBLKCACHEGLOBAL;
+
+/**
+ * PDM VMCPU Instance data.
+ * Changes to this must checked against the padding of the pdm union in VMCPU!
+ */
+typedef struct PDMCPU
+{
+ /** The number of entries in the apQueuedCritSectsLeaves table that's currently
+ * in use. */
+ uint32_t cQueuedCritSectLeaves;
+ uint32_t uPadding0; /**< Alignment padding.*/
+ /** Critical sections queued in RC/R0 because of contention preventing leave to
+ * complete. (R3 Ptrs)
+ * We will return to Ring-3 ASAP, so this queue doesn't have to be very long. */
+ R3PTRTYPE(PPDMCRITSECT) apQueuedCritSectLeaves[8];
+
+ /** The number of entries in the apQueuedCritSectRwExclLeaves table that's
+ * currently in use. */
+ uint32_t cQueuedCritSectRwExclLeaves;
+ uint32_t uPadding1; /**< Alignment padding.*/
+ /** Read/write critical sections queued in RC/R0 because of contention
+ * preventing exclusive leave to complete. (R3 Ptrs)
+ * We will return to Ring-3 ASAP, so this queue doesn't have to be very long. */
+ R3PTRTYPE(PPDMCRITSECTRW) apQueuedCritSectRwExclLeaves[8];
+
+ /** The number of entries in the apQueuedCritSectsRwShrdLeaves table that's
+ * currently in use. */
+ uint32_t cQueuedCritSectRwShrdLeaves;
+ uint32_t uPadding2; /**< Alignment padding.*/
+ /** Read/write critical sections queued in RC/R0 because of contention
+ * preventing shared leave to complete. (R3 Ptrs)
+ * We will return to Ring-3 ASAP, so this queue doesn't have to be very long. */
+ R3PTRTYPE(PPDMCRITSECTRW) apQueuedCritSectRwShrdLeaves[8];
+} PDMCPU;
+
+
+/**
+ * PDM VM Instance data.
+ * Changes to this must checked against the padding of the cfgm union in VM!
+ */
+typedef struct PDM
+{
+ /** The PDM lock.
+ * This is used to protect everything that deals with interrupts, i.e.
+ * the PIC, APIC, IOAPIC and PCI devices plus some PDM functions. */
+ PDMCRITSECT CritSect;
+ /** The NOP critical section.
+ * This is a dummy critical section that will not do any thread
+ * serialization but instead let all threads enter immediately and
+ * concurrently. */
+ PDMCRITSECT NopCritSect;
+
+ /** List of registered devices. (FIFO) */
+ R3PTRTYPE(PPDMDEV) pDevs;
+ /** List of devices instances. (FIFO) */
+ R3PTRTYPE(PPDMDEVINS) pDevInstances;
+ /** List of registered USB devices. (FIFO) */
+ R3PTRTYPE(PPDMUSB) pUsbDevs;
+ /** List of USB devices instances. (FIFO) */
+ R3PTRTYPE(PPDMUSBINS) pUsbInstances;
+ /** List of registered drivers. (FIFO) */
+ R3PTRTYPE(PPDMDRV) pDrvs;
+ /** The registered firmware device (can be NULL). */
+ R3PTRTYPE(PPDMFW) pFirmware;
+ /** PCI Buses. */
+ PDMPCIBUS aPciBuses[PDM_PCI_BUSSES_MAX];
+ /** The register PIC device. */
+ PDMPIC Pic;
+ /** The registered APIC device. */
+ PDMAPIC Apic;
+ /** The registered I/O APIC device. */
+ PDMIOAPIC IoApic;
+ /** The registered DMAC device. */
+ R3PTRTYPE(PPDMDMAC) pDmac;
+ /** The registered RTC device. */
+ R3PTRTYPE(PPDMRTC) pRtc;
+ /** The registered USB HUBs. (FIFO) */
+ R3PTRTYPE(PPDMUSBHUB) pUsbHubs;
+
+ /** Queue in which devhlp tasks are queued for R3 execution - R3 Ptr. */
+ R3PTRTYPE(PPDMQUEUE) pDevHlpQueueR3;
+ /** Queue in which devhlp tasks are queued for R3 execution - R0 Ptr. */
+ R0PTRTYPE(PPDMQUEUE) pDevHlpQueueR0;
+ /** Queue in which devhlp tasks are queued for R3 execution - RC Ptr. */
+ RCPTRTYPE(PPDMQUEUE) pDevHlpQueueRC;
+ /** Pointer to the queue which should be manually flushed - RC Ptr.
+ * Only touched by EMT. */
+ RCPTRTYPE(struct PDMQUEUE *) pQueueFlushRC;
+ /** Pointer to the queue which should be manually flushed - R0 Ptr.
+ * Only touched by EMT. */
+ R0PTRTYPE(struct PDMQUEUE *) pQueueFlushR0;
+ /** Bitmask controlling the queue flushing.
+ * See PDM_QUEUE_FLUSH_FLAG_ACTIVE and PDM_QUEUE_FLUSH_FLAG_PENDING. */
+ uint32_t volatile fQueueFlushing;
+
+ /** The current IRQ tag (tracing purposes). */
+ uint32_t volatile uIrqTag;
+
+ /** Pending reset flags (PDMVMRESET_F_XXX). */
+ uint32_t volatile fResetFlags;
+ /** Alignment padding. */
+ uint32_t volatile u32Padding;
+
+ /** The tracing ID of the next device instance.
+ *
+ * @remarks We keep the device tracing ID seperate from the rest as these are
+ * then more likely to end up with the same ID from one run to
+ * another, making analysis somewhat easier. Drivers and USB devices
+ * are more volatile and can be changed at runtime, thus these are much
+ * less likely to remain stable, so just heap them all together. */
+ uint32_t idTracingDev;
+ /** The tracing ID of the next driver instance, USB device instance or other
+ * PDM entity requiring an ID. */
+ uint32_t idTracingOther;
+
+ /** @name VMM device heap
+ * @{ */
+ /** The heap size. */
+ uint32_t cbVMMDevHeap;
+ /** Free space. */
+ uint32_t cbVMMDevHeapLeft;
+ /** Pointer to the heap base (MMIO2 ring-3 mapping). NULL if not registered. */
+ RTR3PTR pvVMMDevHeap;
+ /** Ring-3 mapping/unmapping notification callback for the user. */
+ PFNPDMVMMDEVHEAPNOTIFY pfnVMMDevHeapNotify;
+ /** The current mapping. NIL_RTGCPHYS if not mapped or registered. */
+ RTGCPHYS GCPhysVMMDevHeap;
+ /** @} */
+
+ /** Number of times a critical section leave request needed to be queued for ring-3 execution. */
+ STAMCOUNTER StatQueuedCritSectLeaves;
+} PDM;
+AssertCompileMemberAlignment(PDM, GCPhysVMMDevHeap, sizeof(RTGCPHYS));
+AssertCompileMemberAlignment(PDM, CritSect, 8);
+AssertCompileMemberAlignment(PDM, StatQueuedCritSectLeaves, 8);
+/** Pointer to PDM VM instance data. */
+typedef PDM *PPDM;
+
+
+
+/**
+ * PDM data kept in the UVM.
+ */
+typedef struct PDMUSERPERVM
+{
+ /** @todo move more stuff over here. */
+
+ /** Linked list of timer driven PDM queues.
+ * Currently serialized by PDM::CritSect. */
+ R3PTRTYPE(struct PDMQUEUE *) pQueuesTimer;
+ /** Linked list of force action driven PDM queues.
+ * Currently serialized by PDM::CritSect. */
+ R3PTRTYPE(struct PDMQUEUE *) pQueuesForced;
+
+ /** Lock protecting the lists below it. */
+ RTCRITSECT ListCritSect;
+ /** Pointer to list of loaded modules. */
+ PPDMMOD pModules;
+ /** List of initialized critical sections. (LIFO) */
+ R3PTRTYPE(PPDMCRITSECTINT) pCritSects;
+ /** List of initialized read/write critical sections. (LIFO) */
+ R3PTRTYPE(PPDMCRITSECTRWINT) pRwCritSects;
+ /** Head of the PDM Thread list. (singly linked) */
+ R3PTRTYPE(PPDMTHREAD) pThreads;
+ /** Tail of the PDM Thread list. (singly linked) */
+ R3PTRTYPE(PPDMTHREAD) pThreadsTail;
+
+ /** @name PDM Async Completion
+ * @{ */
+ /** Pointer to the array of supported endpoint classes. */
+ PPDMASYNCCOMPLETIONEPCLASS apAsyncCompletionEndpointClass[PDMASYNCCOMPLETIONEPCLASSTYPE_MAX];
+ /** Head of the templates. Singly linked, protected by ListCritSect. */
+ R3PTRTYPE(PPDMASYNCCOMPLETIONTEMPLATE) pAsyncCompletionTemplates;
+ /** @} */
+
+ /** Global block cache data. */
+ R3PTRTYPE(PPDMBLKCACHEGLOBAL) pBlkCacheGlobal;
+#ifdef VBOX_WITH_NETSHAPER
+ /** Pointer to network shaper instance. */
+ R3PTRTYPE(PPDMNETSHAPER) pNetShaper;
+#endif /* VBOX_WITH_NETSHAPER */
+
+} PDMUSERPERVM;
+/** Pointer to the PDM data kept in the UVM. */
+typedef PDMUSERPERVM *PPDMUSERPERVM;
+
+
+
+/*******************************************************************************
+* Global Variables *
+*******************************************************************************/
+#ifdef IN_RING3
+extern const PDMDRVHLPR3 g_pdmR3DrvHlp;
+extern const PDMDEVHLPR3 g_pdmR3DevHlpTrusted;
+extern const PDMDEVHLPR3 g_pdmR3DevHlpUnTrusted;
+extern const PDMPICHLPR3 g_pdmR3DevPicHlp;
+extern const PDMIOAPICHLPR3 g_pdmR3DevIoApicHlp;
+extern const PDMFWHLPR3 g_pdmR3DevFirmwareHlp;
+extern const PDMPCIHLPR3 g_pdmR3DevPciHlp;
+extern const PDMDMACHLP g_pdmR3DevDmacHlp;
+extern const PDMRTCHLP g_pdmR3DevRtcHlp;
+extern const PDMHPETHLPR3 g_pdmR3DevHpetHlp;
+extern const PDMPCIRAWHLPR3 g_pdmR3DevPciRawHlp;
+#endif
+
+
+/*******************************************************************************
+* Defined Constants And Macros *
+*******************************************************************************/
+/** @def PDMDEV_ASSERT_DEVINS
+ * Asserts the validity of the device instance.
+ */
+#ifdef VBOX_STRICT
+# define PDMDEV_ASSERT_DEVINS(pDevIns) \
+ do { \
+ AssertPtr(pDevIns); \
+ Assert(pDevIns->u32Version == PDM_DEVINS_VERSION); \
+ Assert(pDevIns->CTX_SUFF(pvInstanceData) == (void *)&pDevIns->achInstanceData[0]); \
+ } while (0)
+#else
+# define PDMDEV_ASSERT_DEVINS(pDevIns) do { } while (0)
+#endif
+
+/** @def PDMDRV_ASSERT_DRVINS
+ * Asserts the validity of the driver instance.
+ */
+#ifdef VBOX_STRICT
+# define PDMDRV_ASSERT_DRVINS(pDrvIns) \
+ do { \
+ AssertPtr(pDrvIns); \
+ Assert(pDrvIns->u32Version == PDM_DRVINS_VERSION); \
+ Assert(pDrvIns->CTX_SUFF(pvInstanceData) == (void *)&pDrvIns->achInstanceData[0]); \
+ } while (0)
+#else
+# define PDMDRV_ASSERT_DRVINS(pDrvIns) do { } while (0)
+#endif
+
+
+/*******************************************************************************
+* Internal Functions *
+*******************************************************************************/
+#ifdef IN_RING3
+bool pdmR3IsValidName(const char *pszName);
+
+int pdmR3CritSectBothInitStats(PVM pVM);
+void pdmR3CritSectBothRelocate(PVM pVM);
+int pdmR3CritSectBothDeleteDevice(PVM pVM, PPDMDEVINS pDevIns);
+int pdmR3CritSectBothDeleteDriver(PVM pVM, PPDMDRVINS pDrvIns);
+int pdmR3CritSectInitDevice( PVM pVM, PPDMDEVINS pDevIns, PPDMCRITSECT pCritSect, RT_SRC_POS_DECL,
+ const char *pszNameFmt, va_list va);
+int pdmR3CritSectInitDeviceAuto( PVM pVM, PPDMDEVINS pDevIns, PPDMCRITSECT pCritSect, RT_SRC_POS_DECL,
+ const char *pszNameFmt, ...);
+int pdmR3CritSectInitDriver( PVM pVM, PPDMDRVINS pDrvIns, PPDMCRITSECT pCritSect, RT_SRC_POS_DECL,
+ const char *pszNameFmt, ...);
+int pdmR3CritSectRwInitDevice( PVM pVM, PPDMDEVINS pDevIns, PPDMCRITSECTRW pCritSect, RT_SRC_POS_DECL,
+ const char *pszNameFmt, va_list va);
+int pdmR3CritSectRwInitDeviceAuto( PVM pVM, PPDMDEVINS pDevIns, PPDMCRITSECTRW pCritSect, RT_SRC_POS_DECL,
+ const char *pszNameFmt, ...);
+int pdmR3CritSectRwInitDriver( PVM pVM, PPDMDRVINS pDrvIns, PPDMCRITSECTRW pCritSect, RT_SRC_POS_DECL,
+ const char *pszNameFmt, ...);
+
+int pdmR3DevInit(PVM pVM);
+int pdmR3DevInitComplete(PVM pVM);
+PPDMDEV pdmR3DevLookup(PVM pVM, const char *pszName);
+int pdmR3DevFindLun(PVM pVM, const char *pszDevice, unsigned iInstance, unsigned iLun, PPDMLUN *ppLun);
+DECLCALLBACK(bool) pdmR3DevHlpQueueConsumer(PVM pVM, PPDMQUEUEITEMCORE pItem);
+
+int pdmR3UsbLoadModules(PVM pVM);
+int pdmR3UsbInstantiateDevices(PVM pVM);
+PPDMUSB pdmR3UsbLookup(PVM pVM, const char *pszName);
+int pdmR3UsbRegisterHub(PVM pVM, PPDMDRVINS pDrvIns, uint32_t fVersions, uint32_t cPorts, PCPDMUSBHUBREG pUsbHubReg, PPCPDMUSBHUBHLP ppUsbHubHlp);
+int pdmR3UsbVMInitComplete(PVM pVM);
+
+int pdmR3DrvInit(PVM pVM);
+int pdmR3DrvInstantiate(PVM pVM, PCFGMNODE pNode, PPDMIBASE pBaseInterface, PPDMDRVINS pDrvAbove,
+ PPDMLUN pLun, PPDMIBASE *ppBaseInterface);
+int pdmR3DrvDetach(PPDMDRVINS pDrvIns, uint32_t fFlags);
+void pdmR3DrvDestroyChain(PPDMDRVINS pDrvIns, uint32_t fFlags);
+PPDMDRV pdmR3DrvLookup(PVM pVM, const char *pszName);
+
+int pdmR3LdrInitU(PUVM pUVM);
+void pdmR3LdrTermU(PUVM pUVM);
+char *pdmR3FileR3(const char *pszFile, bool fShared);
+int pdmR3LoadR3U(PUVM pUVM, const char *pszFilename, const char *pszName);
+
+void pdmR3QueueRelocate(PVM pVM, RTGCINTPTR offDelta);
+
+int pdmR3ThreadCreateDevice(PVM pVM, PPDMDEVINS pDevIns, PPPDMTHREAD ppThread, void *pvUser, PFNPDMTHREADDEV pfnThread,
+ PFNPDMTHREADWAKEUPDEV pfnWakeup, size_t cbStack, RTTHREADTYPE enmType, const char *pszName);
+int pdmR3ThreadCreateUsb(PVM pVM, PPDMUSBINS pUsbIns, PPPDMTHREAD ppThread, void *pvUser, PFNPDMTHREADUSB pfnThread,
+ PFNPDMTHREADWAKEUPUSB pfnWakeup, size_t cbStack, RTTHREADTYPE enmType, const char *pszName);
+int pdmR3ThreadCreateDriver(PVM pVM, PPDMDRVINS pDrvIns, PPPDMTHREAD ppThread, void *pvUser, PFNPDMTHREADDRV pfnThread,
+ PFNPDMTHREADWAKEUPDRV pfnWakeup, size_t cbStack, RTTHREADTYPE enmType, const char *pszName);
+int pdmR3ThreadDestroyDevice(PVM pVM, PPDMDEVINS pDevIns);
+int pdmR3ThreadDestroyUsb(PVM pVM, PPDMUSBINS pUsbIns);
+int pdmR3ThreadDestroyDriver(PVM pVM, PPDMDRVINS pDrvIns);
+void pdmR3ThreadDestroyAll(PVM pVM);
+int pdmR3ThreadResumeAll(PVM pVM);
+int pdmR3ThreadSuspendAll(PVM pVM);
+
+#ifdef VBOX_WITH_PDM_ASYNC_COMPLETION
+int pdmR3AsyncCompletionInit(PVM pVM);
+int pdmR3AsyncCompletionTerm(PVM pVM);
+void pdmR3AsyncCompletionResume(PVM pVM);
+int pdmR3AsyncCompletionTemplateCreateDevice(PVM pVM, PPDMDEVINS pDevIns, PPPDMASYNCCOMPLETIONTEMPLATE ppTemplate, PFNPDMASYNCCOMPLETEDEV pfnCompleted, const char *pszDesc);
+int pdmR3AsyncCompletionTemplateCreateDriver(PVM pVM, PPDMDRVINS pDrvIns, PPPDMASYNCCOMPLETIONTEMPLATE ppTemplate,
+ PFNPDMASYNCCOMPLETEDRV pfnCompleted, void *pvTemplateUser, const char *pszDesc);
+int pdmR3AsyncCompletionTemplateCreateUsb(PVM pVM, PPDMUSBINS pUsbIns, PPPDMASYNCCOMPLETIONTEMPLATE ppTemplate, PFNPDMASYNCCOMPLETEUSB pfnCompleted, const char *pszDesc);
+int pdmR3AsyncCompletionTemplateDestroyDevice(PVM pVM, PPDMDEVINS pDevIns);
+int pdmR3AsyncCompletionTemplateDestroyDriver(PVM pVM, PPDMDRVINS pDrvIns);
+int pdmR3AsyncCompletionTemplateDestroyUsb(PVM pVM, PPDMUSBINS pUsbIns);
+#endif
+
+#ifdef VBOX_WITH_NETSHAPER
+int pdmR3NetShaperInit(PVM pVM);
+int pdmR3NetShaperTerm(PVM pVM);
+#endif
+
+int pdmR3BlkCacheInit(PVM pVM);
+void pdmR3BlkCacheTerm(PVM pVM);
+int pdmR3BlkCacheResume(PVM pVM);
+
+#endif /* IN_RING3 */
+
+void pdmLock(PVM pVM);
+int pdmLockEx(PVM pVM, int rc);
+void pdmUnlock(PVM pVM);
+
+#if defined(IN_RING3) || defined(IN_RING0)
+void pdmCritSectRwLeaveSharedQueued(PPDMCRITSECTRW pThis);
+void pdmCritSectRwLeaveExclQueued(PPDMCRITSECTRW pThis);
+#endif
+
+/** @} */
+
+RT_C_DECLS_END
+
+#endif /* !VMM_INCLUDED_SRC_include_PDMInternal_h */
+