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| -rw-r--r-- | include/VBox/vmm/pdmpcidevint.h | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/include/VBox/vmm/pdmpcidevint.h b/include/VBox/vmm/pdmpcidevint.h new file mode 100644 index 00000000..b678bf05 --- /dev/null +++ b/include/VBox/vmm/pdmpcidevint.h @@ -0,0 +1,238 @@ +/* $Id: pdmpcidevint.h $ */ +/** @file + * DevPCI - PDM PCI Internal header - Only for hiding bits of PDMPCIDEV. + */ + +/* + * Copyright (C) 2006-2022 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_vmm_pdmpcidevint_h +#define VBOX_INCLUDED_vmm_pdmpcidevint_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <VBox/vmm/pdmdev.h> + +/** @defgroup grp_pdm_pcidev_int The PDM PCI Device Internals + * @ingroup grp_pdm_pcidev + * + * @remarks The PDM PCI device internals are visible to both PDM and the PCI Bus + * implementation, thus it lives among the the public headers despite + * being rather private and internal. + * + * @{ + */ + + +/** + * PCI I/O region. + */ +typedef struct PCIIOREGION +{ + /** Current PCI mapping address, INVALID_PCI_ADDRESS (0xffffffff) means not mapped. */ + uint64_t addr; + /** The region size. Power of 2. */ + uint64_t size; + /** Handle or UINT64_MAX (see PDMPCIDEV_IORGN_F_HANDLE_MASK in fFlags). */ + uint64_t hHandle; + /** PDMPCIDEV_IORGN_F_XXXX. */ + uint32_t fFlags; + /** PCIADDRESSSPACE */ + uint8_t type; + uint8_t abPadding0[3]; + /** Callback called when the region is mapped or unmapped (new style devs). */ + R3PTRTYPE(PFNPCIIOREGIONMAP) pfnMap; +#if R3_ARCH_BITS == 32 + uint32_t u32Padding2; +#endif +} PCIIOREGION; +AssertCompileSize(PCIIOREGION, 5*8); +/** Pointer to a PCI I/O region. */ +typedef PCIIOREGION *PPCIIOREGION; +/** Pointer to a const PCI I/O region. */ +typedef PCIIOREGION const *PCPCIIOREGION; + +/** + * Callback function for reading from the PCI configuration space. + * + * @returns Strict VBox status code. + * @param pDevIns Pointer to the device instance of the PCI bus. + * @param iBus The bus number this device is on. + * @param iDevice The number of the device on the bus. + * @param u32Address The configuration space register address. [0..255] + * @param cb The register size. [1,2,4] + * @param pu32Value Where to return the register value. + */ +typedef DECLCALLBACKTYPE(VBOXSTRICTRC, FNPCIBRIDGECONFIGREAD,(PPDMDEVINSR3 pDevIns, uint8_t iBus, uint8_t iDevice, + uint32_t u32Address, unsigned cb, uint32_t *pu32Value)); +/** Pointer to a FNPCICONFIGREAD() function. */ +typedef FNPCIBRIDGECONFIGREAD *PFNPCIBRIDGECONFIGREAD; +#if !RT_CLANG_PREREQ(11, 0) /* Clang 11 (at least) has trouble with nothrow and pointers to function pointers. */ +/** Pointer to a PFNPCICONFIGREAD. */ +typedef PFNPCIBRIDGECONFIGREAD *PPFNPCIBRIDGECONFIGREAD; +#endif + +/** + * Callback function for writing to the PCI configuration space. + * + * @returns Strict VBox status code. + * @param pDevIns Pointer to the device instance of the PCI bus. + * @param iBus The bus number this device is on. + * @param iDevice The number of the device on the bus. + * @param u32Address The configuration space register address. [0..255] + * @param cb The register size. [1,2,4] + * @param u32Value The value that's being written. The number of bits actually used from + * this value is determined by the cb parameter. + */ +typedef DECLCALLBACKTYPE(VBOXSTRICTRC, FNPCIBRIDGECONFIGWRITE,(PPDMDEVINSR3 pDevIns, uint8_t iBus, uint8_t iDevice, + uint32_t u32Address, unsigned cb, uint32_t u32Value)); +/** Pointer to a FNPCICONFIGWRITE() function. */ +typedef FNPCIBRIDGECONFIGWRITE *PFNPCIBRIDGECONFIGWRITE; +#if !RT_CLANG_PREREQ(11, 0) /* Clang 11 (at least) has trouble with nothrow and pointers to function pointers. */ +/** Pointer to a PFNPCICONFIGWRITE. */ +typedef PFNPCIBRIDGECONFIGWRITE *PPFNPCIBRIDGECONFIGWRITE; +#endif + +/* Forward declaration */ +struct DEVPCIBUS; + +enum { + /** Flag whether the device is a pci-to-pci bridge. + * This is set prior to device registration. */ + PCIDEV_FLAG_PCI_TO_PCI_BRIDGE = RT_BIT_32(1), + /** Flag whether the device is a PCI Express device. + * This is set prior to device registration. */ + PCIDEV_FLAG_PCI_EXPRESS_DEVICE = RT_BIT_32(2), + /** Flag whether the device is capable of MSI. + * This one is set by MsiInit(). */ + PCIDEV_FLAG_MSI_CAPABLE = RT_BIT_32(3), + /** Flag whether the device is capable of MSI-X. + * This one is set by MsixInit(). */ + PCIDEV_FLAG_MSIX_CAPABLE = RT_BIT_32(4), + /** Flag if device represents real physical device in passthrough mode. */ + PCIDEV_FLAG_PASSTHROUGH = RT_BIT_32(5), + /** Flag whether the device is capable of MSI using 64-bit address. */ + PCIDEV_FLAG_MSI64_CAPABLE = RT_BIT_32(6) + +}; + + +/** + * PDM PCI Device - Internal data. + * + * @sa PDMPCIDEV + */ +typedef struct PDMPCIDEVINT +{ + /** @name Owned by PDM. + * @remarks The bus may use the device instance pointers. + * @{ + */ + /** Pointer to the PDM device the PCI device belongs to. (R3 ptr) */ + PPDMDEVINSR3 pDevInsR3; + /** The CFGM device configuration index (default, PciDev1..255). + * This also works as the internal sub-device ordinal with MMIOEx. + * @note Same value as idxSubDev, can therefore be removed later. */ + uint8_t idxDevCfg; + /** Set if the it can be reassigned to a different PCI device number. */ + bool fReassignableDevNo; + /** Set if the it can be reassigned to a different PCI function number. */ + bool fReassignableFunNo; + /** Alignment padding - used by ICH9 for region swapping (DevVGA hack). */ + uint8_t bPadding0; + /** Index into the PDM internal bus array (PDM::aPciBuses). */ + uint8_t idxPdmBus; + /** Set if this device has been registered. */ + bool fRegistered; + /** Index into PDMDEVINSR3::apPciDevs (same as PDMPCIDEV::idxSubDev). */ + uint16_t idxSubDev; + /** @} */ + + /** @name Owned by the PCI Bus + * @remarks PDM will not touch anything here (includes not relocating anything). + * @{ + */ + /** Pointer to the PCI bus of the device. (R3 ptr) */ + R3PTRTYPE(struct DEVPCIBUS *) pBusR3; + /** Read config callback. */ + R3PTRTYPE(PFNPCICONFIGREAD) pfnConfigRead; + /** Write config callback. */ + R3PTRTYPE(PFNPCICONFIGWRITE) pfnConfigWrite; + /** Read config callback for PCI bridges to pass requests + * to devices on another bus. */ + R3PTRTYPE(PFNPCIBRIDGECONFIGREAD) pfnBridgeConfigRead; + /** Write config callback for PCI bridges to pass requests + * to devices on another bus. */ + R3PTRTYPE(PFNPCIBRIDGECONFIGWRITE) pfnBridgeConfigWrite; + + /** Flags of this PCI device, see PCIDEV_FLAG_XXX constants. */ + uint32_t fFlags; + /** Current state of the IRQ pin of the device. */ + int32_t uIrqPinState; + + /** Offset of MSI PCI capability in config space, or 0. + * @todo fix non-standard naming. */ + uint8_t u8MsiCapOffset; + /** Size of MSI PCI capability in config space, or 0. + * @todo fix non-standard naming. */ + uint8_t u8MsiCapSize; + /** Offset of MSI-X PCI capability in config space, or 0. + * @todo fix non-standard naming. */ + uint8_t u8MsixCapOffset; + /** Size of MSI-X PCI capability in config space, or 0. + * @todo fix non-standard naming. */ + uint8_t u8MsixCapSize; + /** Size of the MSI-X region. */ + uint16_t cbMsixRegion; + /** Offset to the PBA for MSI-X. */ + uint16_t offMsixPba; + /** Add padding to align aIORegions to an 16 byte boundary. */ + uint8_t abPadding2[HC_ARCH_BITS == 32 ? 12 : 8]; + /** The MMIO handle for the MSI-X MMIO bar. */ + IOMMMIOHANDLE hMmioMsix; + + /** Pointer to bus specific data. (R3 ptr) */ + R3PTRTYPE(const void *) pvPciBusPtrR3; + /** I/O regions. */ + PCIIOREGION aIORegions[VBOX_PCI_NUM_REGIONS]; + /** @} */ +} PDMPCIDEVINT; +AssertCompileMemberAlignment(PDMPCIDEVINT, aIORegions, 8); +AssertCompileSize(PDMPCIDEVINT, HC_ARCH_BITS == 32 ? 0x98 : 0x178); + +/** Indicate that PDMPCIDEV::Int.s can be declared. */ +#define PDMPCIDEVINT_DECLARED + +/** @} */ + +#endif /* !VBOX_INCLUDED_vmm_pdmpcidevint_h */ + |