VirtualBox

source: vbox/trunk/src/VBox/VMM/VMMR0/IOMR0.cpp

Last change on this file was 106061, checked in by vboxsync, 3 months ago

Copyright year updates by scm.

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1/* $Id: IOMR0.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
2/** @file
3 * IOM - Host Context Ring 0.
4 */
5
6/*
7 * Copyright (C) 2006-2024 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * SPDX-License-Identifier: GPL-3.0-only
26 */
27
28
29/*********************************************************************************************************************************
30* Header Files *
31*********************************************************************************************************************************/
32#define LOG_GROUP LOG_GROUP_IOM
33#include <VBox/vmm/iom.h>
34#include <VBox/vmm/pgm.h>
35#include "IOMInternal.h"
36#include <VBox/vmm/vmcc.h>
37#include <VBox/log.h>
38#include <iprt/assert.h>
39#include <iprt/assertcompile.h>
40#include <iprt/errcore.h>
41
42
43
44/**
45 * Initializes the per-VM data for the IOM.
46 *
47 * This is called from under the GVMM lock, so it should only initialize the
48 * data so IOMR0CleanupVM and others will work smoothly.
49 *
50 * @param pGVM Pointer to the global VM structure.
51 */
52VMMR0_INT_DECL(void) IOMR0InitPerVMData(PGVM pGVM)
53{
54 AssertCompile(sizeof(pGVM->iom.s) <= sizeof(pGVM->iom.padding));
55 AssertCompile(sizeof(pGVM->iomr0.s) <= sizeof(pGVM->iomr0.padding));
56
57 iomR0IoPortInitPerVMData(pGVM);
58 iomR0MmioInitPerVMData(pGVM);
59}
60
61
62/**
63 * Called during ring-0 init (vmmR0InitVM).
64 *
65 * @returns VBox status code.
66 * @param pGVM Pointer to the global VM structure.
67 */
68VMMR0_INT_DECL(int) IOMR0InitVM(PGVM pGVM)
69{
70 int rc = PGMR0HandlerPhysicalTypeSetUpContext(pGVM, PGMPHYSHANDLERKIND_MMIO, 0 /*fFlags*/,
71 iomMmioHandlerNew, iomMmioPfHandlerNew,
72 "MMIO", pGVM->iom.s.hNewMmioHandlerType);
73 AssertRCReturn(rc, rc);
74 return VINF_SUCCESS;
75}
76
77
78/**
79 * Cleans up any loose ends before the GVM structure is destroyed.
80 */
81VMMR0_INT_DECL(void) IOMR0CleanupVM(PGVM pGVM)
82{
83 iomR0IoPortCleanupVM(pGVM);
84 iomR0MmioCleanupVM(pGVM);
85}
86
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