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/* $Id: VBoxPciInternal.h $ */
/** @file
* VBoxPci - PCI driver (Host), Internal Header.
*/
/*
* Copyright (C) 2011-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
#ifndef VBOX_INCLUDED_SRC_VBoxPci_VBoxPciInternal_h
#define VBOX_INCLUDED_SRC_VBoxPci_VBoxPciInternal_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <VBox/sup.h>
#include <VBox/rawpci.h>
#include <iprt/semaphore.h>
#include <iprt/assert.h>
#ifdef RT_OS_LINUX
#if RTLNX_VER_MIN(2,6,35) && defined(CONFIG_IOMMU_API)
# define VBOX_WITH_IOMMU
#endif
#ifdef VBOX_WITH_IOMMU
#include <linux/errno.h>
#include <linux/iommu.h>
#endif
#endif
RT_C_DECLS_BEGIN
/* Forward declaration. */
typedef struct VBOXRAWPCIGLOBALS *PVBOXRAWPCIGLOBALS;
typedef struct VBOXRAWPCIDRVVM *PVBOXRAWPCIDRVVM;
typedef struct VBOXRAWPCIINS *PVBOXRAWPCIINS;
typedef struct VBOXRAWPCIISRDESC
{
/** Handler function. */
PFNRAWPCIISR pfnIrqHandler;
/** Handler context. */
void *pIrqContext;
/** Host IRQ. */
int32_t iHostIrq;
} VBOXRAWPCIISRDESC;
typedef struct VBOXRAWPCIISRDESC *PVBOXRAWPCIISRDESC;
/**
* The per-instance data of the VBox raw PCI interface.
*
* This is data associated with a host PCI card attached to the VM.
*
*/
typedef struct VBOXRAWPCIINS
{
/** Pointer to the globals. */
PVBOXRAWPCIGLOBALS pGlobals;
/** Mutex protecting device access. */
RTSEMFASTMUTEX hFastMtx;
/** The spinlock protecting the state variables and device access. */
RTSPINLOCK hSpinlock;
/** Pointer to the next device in the list. */
PVBOXRAWPCIINS pNext;
/** Reference count. */
uint32_t volatile cRefs;
/* Host PCI address of this device. */
uint32_t HostPciAddress;
#ifdef RT_OS_LINUX
struct pci_dev * pPciDev;
char szPrevDriver[64];
#endif
bool fMsiUsed;
bool fMsixUsed;
bool fIommuUsed;
bool fPad0;
/** Port, given to the outside world. */
RAWPCIDEVPORT DevPort;
/** IRQ handler. */
VBOXRAWPCIISRDESC IrqHandler;
/** Pointer to per-VM context in hypervisor data. */
PRAWPCIPERVM pVmCtx;
RTR0PTR aRegionR0Mapping[/* XXX: magic */ 7];
} VBOXRAWPCIINS;
/**
* Per-VM data of the VBox PCI driver. Pointed to by pGVM->rawpci.s.pDriverData.
*
*/
typedef struct VBOXRAWPCIDRVVM
{
/** Mutex protecting state changes. */
RTSEMFASTMUTEX hFastMtx;
#ifdef RT_OS_LINUX
# ifdef VBOX_WITH_IOMMU
/* IOMMU domain. */
struct iommu_domain* pIommuDomain;
# endif
#endif
/* Back pointer to pGVM->rawpci.s. */
PRAWPCIPERVM pPerVmData;
} VBOXRAWPCIDRVVM;
/**
* The global data of the VBox PCI driver.
*
* This contains the bit required for communicating with support driver, VBoxDrv
* (start out as SupDrv).
*/
typedef struct VBOXRAWPCIGLOBALS
{
/** Mutex protecting the list of instances and state changes. */
RTSEMFASTMUTEX hFastMtx;
/** Pointer to a list of instance data. */
PVBOXRAWPCIINS pInstanceHead;
/** The raw PCI interface factory. */
RAWPCIFACTORY RawPciFactory;
/** The SUPDRV component factory registration. */
SUPDRVFACTORY SupDrvFactory;
/** The number of current factory references. */
int32_t volatile cFactoryRefs;
/** Whether the IDC connection is open or not.
* This is only for cleaning up correctly after the separate IDC init on Windows. */
bool fIDCOpen;
/** The SUPDRV IDC handle (opaque struct). */
SUPDRVIDCHANDLE SupDrvIDC;
#ifdef RT_OS_LINUX
bool fPciStubModuleAvail;
struct module * pciStubModule;
#endif
} VBOXRAWPCIGLOBALS;
DECLHIDDEN(int) vboxPciInit(PVBOXRAWPCIGLOBALS pGlobals);
DECLHIDDEN(void) vboxPciShutdown(PVBOXRAWPCIGLOBALS pGlobals);
DECLHIDDEN(int) vboxPciOsInitVm(PVBOXRAWPCIDRVVM pThis, PVM pVM, PRAWPCIPERVM pVmData);
DECLHIDDEN(void) vboxPciOsDeinitVm(PVBOXRAWPCIDRVVM pThis, PVM pVM);
DECLHIDDEN(int) vboxPciOsDevInit (PVBOXRAWPCIINS pIns, uint32_t fFlags);
DECLHIDDEN(int) vboxPciOsDevDeinit(PVBOXRAWPCIINS pIns, uint32_t fFlags);
DECLHIDDEN(int) vboxPciOsDevDestroy(PVBOXRAWPCIINS pIns);
DECLHIDDEN(int) vboxPciOsDevGetRegionInfo(PVBOXRAWPCIINS pIns,
int32_t iRegion,
RTHCPHYS *pRegionStart,
uint64_t *pu64RegionSize,
bool *pfPresent,
uint32_t *pfFlags);
DECLHIDDEN(int) vboxPciOsDevMapRegion(PVBOXRAWPCIINS pIns,
int32_t iRegion,
RTHCPHYS pRegionStart,
uint64_t u64RegionSize,
uint32_t fFlags,
RTR0PTR *pRegionBase);
DECLHIDDEN(int) vboxPciOsDevUnmapRegion(PVBOXRAWPCIINS pIns,
int32_t iRegion,
RTHCPHYS RegionStart,
uint64_t u64RegionSize,
RTR0PTR RegionBase);
DECLHIDDEN(int) vboxPciOsDevPciCfgWrite(PVBOXRAWPCIINS pIns, uint32_t Register, PCIRAWMEMLOC *pValue);
DECLHIDDEN(int) vboxPciOsDevPciCfgRead (PVBOXRAWPCIINS pIns, uint32_t Register, PCIRAWMEMLOC *pValue);
DECLHIDDEN(int) vboxPciOsDevRegisterIrqHandler (PVBOXRAWPCIINS pIns, PFNRAWPCIISR pfnHandler, void* pIrqContext, int32_t *piHostIrq);
DECLHIDDEN(int) vboxPciOsDevUnregisterIrqHandler(PVBOXRAWPCIINS pIns, int32_t iHostIrq);
DECLHIDDEN(int) vboxPciOsDevPowerStateChange(PVBOXRAWPCIINS pIns, PCIRAWPOWERSTATE aState);
#define VBOX_DRV_VMDATA(pIns) ((PVBOXRAWPCIDRVVM)(pIns->pVmCtx ? pIns->pVmCtx->pDriverData : NULL))
RT_C_DECLS_END
#endif /* !VBOX_INCLUDED_SRC_VBoxPci_VBoxPciInternal_h */
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