| 1 | /* $Id: GITSInternal.h 108762 2025-03-27 10:16:28Z vboxsync $ */
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| 2 | /** @file
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| 3 | * GITS - Generic Interrupt Controller Interrupt Translation Service - Internal.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2025 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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| 26 | */
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| 27 |
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| 28 | #ifndef VMM_INCLUDED_SRC_include_GITSInternal_h
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| 29 | #define VMM_INCLUDED_SRC_include_GITSInternal_h
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| 30 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 31 | # pragma once
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| 32 | #endif
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| 33 |
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| 34 | #include <VBox/types.h>
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| 35 | #include <VBox/gic-its.h>
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| 36 |
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| 37 | /** @defgroup grp_gits_int Internal
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| 38 | * @ingroup grp_gits
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| 39 | * @internal
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| 40 | * @{
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| 41 | */
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| 42 |
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| 43 | #if 0
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| 44 | /**
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| 45 | * Interrupt Translation Table Base.
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| 46 | */
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| 47 | typedef struct GITSITSBASE
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| 48 | {
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| 49 | /** The physical address of the table. */
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| 50 | RTGCPHYS GCPhys;
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| 51 | /** Size of every allocated page in bytes. */
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| 52 | uint32_t cbPageSize;
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| 53 | /** Number of pages allocated. */
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| 54 | uint8_t cPages;
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| 55 | /** Size of each entry in bytes. */
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| 56 | uint8_t cbEntry;
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| 57 | /** Whether this is a two-level or flat table. */
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| 58 | bool fTwoLevel;
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| 59 | /** Whether software has memory allocated for the table. */
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| 60 | bool fValid;
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| 61 | /** Memory shareability attributes. */
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| 62 | GITSATTRSHARE AttrShare;
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| 63 | /** Memory cacheability attributes (Inner). */
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| 64 | GITSATTRMEM AttrMemInner;
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| 65 | /** Memory cacheability attributes (Outer). */
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| 66 | GITSATTRMEM AttrMemOuter;
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| 67 | } GITSITSBASE;
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| 68 | AssertCompileSizeAlignment(GITSITSBASE, 8);
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| 69 | AssertCompileMemberAlignment(GITSITSBASE, AttrShare, 8);
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| 70 | #endif
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| 71 |
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| 72 |
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| 73 | /**
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| 74 | * The GIC Interrupt Translation Service device state.
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| 75 | */
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| 76 | typedef struct GITSDEV
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| 77 | {
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| 78 | /** @name Control registers.
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| 79 | * @{ */
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| 80 | /** Whether the ITS is enabled. */
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| 81 | bool fEnabled;
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| 82 | /** Whether unmapped MSI reporting interrupt is enabled. */
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| 83 | bool fUnmappedMsiReporting;
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| 84 | /** Whether ITS is quiescent and can be powered down. */
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| 85 | bool fQuiescent;
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| 86 | /** Padding. */
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| 87 | bool fPadding0;
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| 88 | /** The ITS table descriptor registers. */
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| 89 | RTUINT64U aItsTableRegs[8];
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| 90 | /** @} */
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| 91 |
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| 92 | /** @name Interrupt translation space.
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| 93 | * @{ */
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| 94 | /** @} */
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| 95 |
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| 96 | /** @name Configurables.
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| 97 | * @{ */
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| 98 | /** The ITS architecture (GITS_PIDR2.ArchRev). */
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| 99 | uint8_t uArchRev;
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| 100 | /** Padding. */
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| 101 | uint8_t afPadding0[7];
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| 102 | /** @} */
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| 103 | } GITSDEV;
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| 104 | /** Pointer to a GITS device. */
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| 105 | typedef GITSDEV *PGITSDEV;
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| 106 | /** Pointer to a const GITS device. */
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| 107 | typedef GITSDEV const *PCGITSDEV;
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| 108 | AssertCompileSizeAlignment(GITSDEV, 8);
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| 109 |
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| 110 | DECL_HIDDEN_CALLBACK(void) gitsInit(PGITSDEV pGitsDev);
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| 111 | DECL_HIDDEN_CALLBACK(int) gitsSendMsi(PVMCC pVM, PCIBDF uBusDevFn, PCMSIMSG pMsi, uint32_t uEventId, uint32_t uTagSrc);
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| 112 | DECL_HIDDEN_CALLBACK(VBOXSTRICTRC) gitsMmioReadCtrl(PCGITSDEV pGitsDev, uint16_t offReg, uint32_t *puValue);
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| 113 | DECL_HIDDEN_CALLBACK(VBOXSTRICTRC) gitsMmioReadTranslate(PCGITSDEV pGitsDev, uint16_t offReg, uint32_t *puValue);
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| 114 | DECL_HIDDEN_CALLBACK(VBOXSTRICTRC) gitsMmioWriteCtrl(PGITSDEV pGitsDev, uint16_t offReg, uint32_t uValue);
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| 115 | DECL_HIDDEN_CALLBACK(VBOXSTRICTRC) gitsMmioWriteTranslate(PGITSDEV pGitsDev, uint16_t offReg, uint32_t uValue);
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| 116 |
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| 117 | #ifdef IN_RING3
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| 118 | DECL_HIDDEN_CALLBACK(void) gitsR3DbgInfo(PCGITSDEV pGitsDev, PCDBGFINFOHLP pHlp, const char *pszArgs);
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| 119 | #endif
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| 120 |
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| 121 | #ifdef LOG_ENABLED
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| 122 | DECL_HIDDEN_CALLBACK(const char *) gitsGetCtrlRegDescription(uint16_t offReg);
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| 123 | DECL_HIDDEN_CALLBACK(const char *) gitsGetTranslationRegDescription(uint16_t offReg);
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| 124 | #endif
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| 125 |
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| 126 | /** @} */
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| 127 |
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| 128 | #endif /* !VMM_INCLUDED_SRC_include_GITSInternal_h */
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| 129 |
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