| 1 | /* $Id: IOMR0.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IOM - Host Context Ring 0.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2024 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_IOM
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| 33 | #include <VBox/vmm/iom.h>
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| 34 | #include <VBox/vmm/pgm.h>
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| 35 | #include "IOMInternal.h"
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| 36 | #include <VBox/vmm/vmcc.h>
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| 37 | #include <VBox/log.h>
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| 38 | #include <iprt/assert.h>
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| 39 | #include <iprt/assertcompile.h>
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| 40 | #include <iprt/errcore.h>
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| 41 |
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| 42 |
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| 43 |
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| 44 | /**
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| 45 | * Initializes the per-VM data for the IOM.
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| 46 | *
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| 47 | * This is called from under the GVMM lock, so it should only initialize the
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| 48 | * data so IOMR0CleanupVM and others will work smoothly.
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| 49 | *
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| 50 | * @param pGVM Pointer to the global VM structure.
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| 51 | */
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| 52 | VMMR0_INT_DECL(void) IOMR0InitPerVMData(PGVM pGVM)
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| 53 | {
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| 54 | AssertCompile(sizeof(pGVM->iom.s) <= sizeof(pGVM->iom.padding));
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| 55 | AssertCompile(sizeof(pGVM->iomr0.s) <= sizeof(pGVM->iomr0.padding));
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| 56 |
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| 57 | iomR0IoPortInitPerVMData(pGVM);
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| 58 | iomR0MmioInitPerVMData(pGVM);
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| 59 | }
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| 60 |
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| 61 |
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| 62 | /**
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| 63 | * Called during ring-0 init (vmmR0InitVM).
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| 64 | *
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| 65 | * @returns VBox status code.
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| 66 | * @param pGVM Pointer to the global VM structure.
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| 67 | */
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| 68 | VMMR0_INT_DECL(int) IOMR0InitVM(PGVM pGVM)
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| 69 | {
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| 70 | int rc = PGMR0HandlerPhysicalTypeSetUpContext(pGVM, PGMPHYSHANDLERKIND_MMIO, 0 /*fFlags*/,
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| 71 | iomMmioHandlerNew, iomMmioPfHandlerNew,
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| 72 | "MMIO", pGVM->iom.s.hNewMmioHandlerType);
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| 73 | AssertRCReturn(rc, rc);
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| 74 | return VINF_SUCCESS;
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| 75 | }
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| 76 |
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| 77 |
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| 78 | /**
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| 79 | * Cleans up any loose ends before the GVM structure is destroyed.
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| 80 | */
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| 81 | VMMR0_INT_DECL(void) IOMR0CleanupVM(PGVM pGVM)
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| 82 | {
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| 83 | iomR0IoPortCleanupVM(pGVM);
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| 84 | iomR0MmioCleanupVM(pGVM);
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| 85 | }
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| 86 |
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