| 1 | /* $Id: IOMR0.cpp 93650 2022-02-08 10:43:53Z 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) 2006-2022 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 |
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| 19 | /*********************************************************************************************************************************
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| 20 | * Header Files *
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| 21 | *********************************************************************************************************************************/
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| 22 | #define LOG_GROUP LOG_GROUP_IOM
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| 23 | #include <VBox/vmm/iom.h>
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| 24 | #include <VBox/vmm/pgm.h>
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| 25 | #include "IOMInternal.h"
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| 26 | #include <VBox/vmm/vmcc.h>
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| 27 | #include <VBox/log.h>
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| 28 | #include <iprt/assert.h>
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| 29 | #include <iprt/assertcompile.h>
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| 30 | #include <iprt/errcore.h>
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| 31 |
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| 32 |
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| 33 |
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| 34 | /**
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| 35 | * Initializes the per-VM data for the IOM.
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| 36 | *
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| 37 | * This is called from under the GVMM lock, so it should only initialize the
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| 38 | * data so IOMR0CleanupVM and others will work smoothly.
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| 39 | *
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| 40 | * @param pGVM Pointer to the global VM structure.
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| 41 | */
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| 42 | VMMR0_INT_DECL(void) IOMR0InitPerVMData(PGVM pGVM)
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| 43 | {
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| 44 | AssertCompile(sizeof(pGVM->iom.s) <= sizeof(pGVM->iom.padding));
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| 45 | AssertCompile(sizeof(pGVM->iomr0.s) <= sizeof(pGVM->iomr0.padding));
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| 46 |
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| 47 | iomR0IoPortInitPerVMData(pGVM);
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| 48 | iomR0MmioInitPerVMData(pGVM);
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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 | * Called during ring-0 init (vmmR0InitVM).
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| 54 | *
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| 55 | * @returns VBox status code.
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| 56 | * @param pGVM Pointer to the global VM structure.
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| 57 | */
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| 58 | VMMR0_INT_DECL(int) IOMR0InitVM(PGVM pGVM)
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| 59 | {
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| 60 | int rc = PGMR0HandlerPhysicalTypeSetUpContext(pGVM, PGMPHYSHANDLERKIND_MMIO, 0 /*fFlags*/,
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| 61 | iomMmioHandlerNew, iomMmioPfHandlerNew,
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| 62 | "MMIO", pGVM->iom.s.hNewMmioHandlerType);
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| 63 | AssertRCReturn(rc, rc);
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| 64 | return VINF_SUCCESS;
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| 65 | }
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| 66 |
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| 67 |
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| 68 | /**
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| 69 | * Cleans up any loose ends before the GVM structure is destroyed.
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| 70 | */
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| 71 | VMMR0_INT_DECL(void) IOMR0CleanupVM(PGVM pGVM)
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| 72 | {
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| 73 | iomR0IoPortCleanupVM(pGVM);
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| 74 | iomR0MmioCleanupVM(pGVM);
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| 75 | }
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| 76 |
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