| 1 | /* $Id: GITSAll.cpp 108732 2025-03-25 08:42:33Z vboxsync $ */
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| 2 | /** @file
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| 3 | * GITS - Generic Interrupt Controller Interrupt Translation Service (ITS) - All Contexts.
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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 |
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| 29 | /*********************************************************************************************************************************
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| 30 | * Header Files *
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| 31 | *********************************************************************************************************************************/
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| 32 | #define LOG_GROUP LOG_GROUP_DEV_GIC
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| 33 | #include "GITSInternal.h"
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| 34 |
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| 35 | #include <VBox/log.h>
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| 36 | #include <iprt/errcore.h> /* VINF_SUCCESS */
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| 37 | #include <iprt/string.h> /* RT_ZERO */
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| 38 |
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| 39 |
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| 40 | /*********************************************************************************************************************************
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| 41 | * Defined Constants And Macros *
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| 42 | *********************************************************************************************************************************/
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| 43 | /** The current GITS saved state version. */
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| 44 | #define GITS_SAVED_STATE_VERSION 1
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| 45 |
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| 46 |
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| 47 | /*********************************************************************************************************************************
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| 48 | * Structures and Typedefs *
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| 49 | *********************************************************************************************************************************/
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| 50 |
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| 51 |
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| 52 | /*********************************************************************************************************************************
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| 53 | * Global Variables *
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| 54 | *********************************************************************************************************************************/
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| 55 |
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| 56 |
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| 57 | #ifndef VBOX_DEVICE_STRUCT_TESTCASE
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| 58 |
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| 59 | #ifdef LOG_ENABLED
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| 60 | DECL_HIDDEN_CALLBACK(const char *) gitsGetCtrlRegDescription(uint16_t offReg)
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| 61 | {
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| 62 | if ((uint32_t)offReg - GITS_CTRL_REG_BASER_OFF_FIRST < GITS_CTRL_REG_BASER_RANGE_SIZE)
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| 63 | return "GITS_BASER<n>";
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| 64 | switch (offReg)
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| 65 | {
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| 66 | case GITS_CTRL_REG_CTLR_OFF: return "GITS_CTLR";
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| 67 | case GITS_CTRL_REG_IIDR_OFF: return "GITS_IIDR";
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| 68 | case GITS_CTRL_REG_TYPER_OFF: return "GITS_TYPER";
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| 69 | case GITS_CTRL_REG_MPAMIDR_OFF: return "GITS_MPAMIDR";
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| 70 | case GITS_CTRL_REG_PARTIDR_OFF: return "GITS_PARTIDR";
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| 71 | case GITS_CTRL_REG_MPIDR_OFF: return "GITS_MPIDR";
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| 72 | case GITS_CTRL_REG_STATUSR_OFF: return "GITS_STATUSR";
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| 73 | case GITS_CTRL_REG_UMSIR_OFF: return "GITS_UMSIR";
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| 74 | case GITS_CTRL_REG_CBASER_OFF: return "GITS_CBASER";
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| 75 | case GITS_CTRL_REG_CWRITER_OFF: return "GITS_CWRITER";
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| 76 | case GITS_CTRL_REG_CREADR_OFF: return "GITS_CREADR";
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| 77 | default:
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| 78 | return "<UNKNOWN>";
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| 79 | }
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| 80 | }
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| 81 |
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| 82 | DECL_HIDDEN_CALLBACK(const char *) gitsGetTranslationRegDescription(uint16_t offReg)
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| 83 | {
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| 84 | switch (offReg)
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| 85 | {
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| 86 | case GITS_TRANSLATION_REG_TRANSLATER: return "GITS_TRANSLATERR";
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| 87 | default:
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| 88 | return "<UNKNOWN>";
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| 89 | }
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| 90 | }
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| 91 |
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| 92 | #endif
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| 93 |
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| 94 |
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| 95 | DECL_HIDDEN_CALLBACK(VBOXSTRICTRC) gitsMmioReadCtrl(PCGITSDEV pGitsDev, uint16_t offReg, uint32_t *puValue)
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| 96 | {
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| 97 | Log4Func(("offReg=%#RX16\n", offReg));
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| 98 |
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| 99 | VBOXSTRICTRC rcStrict = VINF_SUCCESS;
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| 100 | switch (offReg)
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| 101 | {
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| 102 | case GITS_CTRL_REG_CTLR_OFF:
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| 103 | *puValue = pGitsDev->fUnmappedMsiReporting;
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| 104 | break;
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| 105 | default:
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| 106 | AssertReleaseFailed();
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| 107 | }
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| 108 |
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| 109 | return rcStrict;
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| 110 | }
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| 111 |
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| 112 |
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| 113 | DECL_HIDDEN_CALLBACK(VBOXSTRICTRC) gitsMmioReadTranslate(PCGITSDEV pGitsDev, uint16_t offReg, uint32_t *puValue)
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| 114 | {
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| 115 | RT_NOREF(pGitsDev, offReg, puValue);
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| 116 | return VERR_NOT_IMPLEMENTED;
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| 117 | }
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| 118 |
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| 119 |
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| 120 | DECL_HIDDEN_CALLBACK(VBOXSTRICTRC) gitsMmioWriteCtrl(PGITSDEV pGitsDev, uint16_t offReg, uint32_t uValue)
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| 121 | {
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| 122 | RT_NOREF(pGitsDev, offReg, uValue);
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| 123 | return VERR_NOT_IMPLEMENTED;
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| 124 | }
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| 125 |
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| 126 |
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| 127 | DECL_HIDDEN_CALLBACK(VBOXSTRICTRC) gitsMmioWriteTranslate(PGITSDEV pGitsDev, uint16_t offReg, uint32_t uValue)
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| 128 | {
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| 129 | RT_NOREF(pGitsDev, offReg, uValue);
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| 130 | return VERR_NOT_IMPLEMENTED;
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| 131 | }
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| 132 |
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| 133 |
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| 134 | DECL_HIDDEN_CALLBACK(void) gitsInit(PGITSDEV pGitsDev)
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| 135 | {
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| 136 | Log4Func(("\n"));
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| 137 | pGitsDev->fEnabled = false;
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| 138 | pGitsDev->fUnmappedMsiReporting = false;
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| 139 | pGitsDev->fQuiescent = true;
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| 140 | RT_ZERO(pGitsDev->aBases);
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| 141 | }
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| 142 |
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| 143 |
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| 144 | #ifdef IN_RING3
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| 145 | DECL_HIDDEN_CALLBACK(void) gitsR3DbgInfo(PCGITSDEV pGitsDev, PCDBGFINFOHLP pHlp, const char *pszArgs)
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| 146 | {
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| 147 | RT_NOREF(pGitsDev, pHlp, pszArgs);
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| 148 | /** @todo Debug info dump. */
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| 149 | }
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| 150 | #endif /* IN_RING3 */
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| 151 |
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| 152 |
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| 153 | /**
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| 154 | * @interface_method_impl{PDMGICBACKEND,pfnSendMsi}
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| 155 | */
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| 156 | DECL_HIDDEN_CALLBACK(int) gitsSendMsi(PVMCC pVM, PCIBDF uBusDevFn, PCMSIMSG pMsi, uint32_t uEventId, uint32_t uTagSrc)
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| 157 | {
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| 158 | RT_NOREF(pVM, uBusDevFn, pMsi, uEventId, uTagSrc);
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| 159 | return VERR_NOT_IMPLEMENTED;
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| 160 | }
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| 161 |
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| 162 |
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| 163 | #endif /* !VBOX_DEVICE_STRUCT_TESTCASE */
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| 164 |
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